Commit | Line | Data |
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d0d6b7c5 | 1 | /* Asynchronous subprocess control for GNU Emacs. |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, |
63136da6 | 3 | 1996, 1998, 1999, 2001, 2002, 2003, 2004, |
6a1bab0e | 4 | 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
d0d6b7c5 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
d0d6b7c5 | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
d0d6b7c5 JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
d0d6b7c5 JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
68c45bf0 PE |
23 | #include <signal.h> |
24 | ||
6720a7fb JB |
25 | /* This file is split into two parts by the following preprocessor |
26 | conditional. The 'then' clause contains all of the support for | |
27 | asynchronous subprocesses. The 'else' clause contains stub | |
28 | versions of some of the asynchronous subprocess routines that are | |
29 | often called elsewhere in Emacs, so we don't have to #ifdef the | |
30 | sections that call them. */ | |
31 | ||
32 | \f | |
d0d6b7c5 | 33 | #ifdef subprocesses |
d0d6b7c5 JB |
34 | |
35 | #include <stdio.h> | |
36 | #include <errno.h> | |
37 | #include <setjmp.h> | |
38 | #include <sys/types.h> /* some typedefs are used in sys/file.h */ | |
39 | #include <sys/file.h> | |
40 | #include <sys/stat.h> | |
2026418c YM |
41 | #ifdef HAVE_INTTYPES_H |
42 | #include <inttypes.h> | |
43 | #endif | |
63136da6 AS |
44 | #ifdef STDC_HEADERS |
45 | #include <stdlib.h> | |
46 | #endif | |
934e2a68 | 47 | |
93b4f699 RS |
48 | #ifdef HAVE_UNISTD_H |
49 | #include <unistd.h> | |
50 | #endif | |
e98d950b | 51 | #include <fcntl.h> |
e98d950b | 52 | |
d0d6b7c5 JB |
53 | #ifdef HAVE_SOCKETS /* TCP connection support, if kernel can do it */ |
54 | #include <sys/socket.h> | |
55 | #include <netdb.h> | |
56 | #include <netinet/in.h> | |
57 | #include <arpa/inet.h> | |
e690ca94 KS |
58 | |
59 | /* Are local (unix) sockets supported? */ | |
4624371d | 60 | #if defined (HAVE_SYS_UN_H) |
e690ca94 KS |
61 | #if !defined (AF_LOCAL) && defined (AF_UNIX) |
62 | #define AF_LOCAL AF_UNIX | |
63 | #endif | |
64 | #ifdef AF_LOCAL | |
65 | #define HAVE_LOCAL_SOCKETS | |
66 | #include <sys/un.h> | |
67 | #endif | |
68 | #endif | |
d0d6b7c5 JB |
69 | #endif /* HAVE_SOCKETS */ |
70 | ||
e39a993c | 71 | #if defined(BSD_SYSTEM) |
d0d6b7c5 | 72 | #include <sys/ioctl.h> |
0ad77c54 | 73 | #if !defined (O_NDELAY) && defined (HAVE_PTYS) && !defined(USG5) |
d0d6b7c5 JB |
74 | #include <fcntl.h> |
75 | #endif /* HAVE_PTYS and no O_NDELAY */ | |
e39a993c | 76 | #endif /* BSD_SYSTEM */ |
d0d6b7c5 JB |
77 | |
78 | #ifdef NEED_BSDTTY | |
79 | #include <bsdtty.h> | |
80 | #endif | |
81 | ||
6b61353c KH |
82 | /* Can we use SIOCGIFCONF and/or SIOCGIFADDR */ |
83 | #ifdef HAVE_SOCKETS | |
84 | #if defined(HAVE_SYS_IOCTL_H) && defined(HAVE_NET_IF_H) | |
85 | /* sys/ioctl.h may have been included already */ | |
86 | #ifndef SIOCGIFADDR | |
87 | #include <sys/ioctl.h> | |
88 | #endif | |
89 | #include <net/if.h> | |
90 | #endif | |
91 | #endif | |
92 | ||
e62cab61 DL |
93 | #ifdef HAVE_SYS_WAIT |
94 | #include <sys/wait.h> | |
95 | #endif | |
d0d6b7c5 | 96 | |
08116b48 CY |
97 | #ifdef HAVE_RES_INIT |
98 | #include <netinet/in.h> | |
99 | #include <arpa/nameser.h> | |
100 | #include <resolv.h> | |
101 | #endif | |
102 | ||
fa8459a3 | 103 | #include "lisp.h" |
d0d6b7c5 | 104 | #include "systime.h" |
36ebaafa | 105 | #include "systty.h" |
d0d6b7c5 | 106 | |
d0d6b7c5 JB |
107 | #include "window.h" |
108 | #include "buffer.h" | |
5bbf78c1 | 109 | #include "character.h" |
0fa1789e | 110 | #include "coding.h" |
d0d6b7c5 | 111 | #include "process.h" |
428a555e | 112 | #include "frame.h" |
d0d6b7c5 JB |
113 | #include "termhooks.h" |
114 | #include "termopts.h" | |
115 | #include "commands.h" | |
3ec68006 | 116 | #include "keyboard.h" |
ececcbec | 117 | #include "blockinput.h" |
dfcf069d | 118 | #include "dispextern.h" |
e0016554 | 119 | #include "composite.h" |
30904ab7 | 120 | #include "atimer.h" |
d0d6b7c5 | 121 | |
dd2281ae | 122 | Lisp_Object Qprocessp; |
324e68ba | 123 | Lisp_Object Qrun, Qstop, Qsignal; |
e690ca94 | 124 | Lisp_Object Qopen, Qclosed, Qconnect, Qfailed, Qlisten; |
e1652a86 | 125 | Lisp_Object Qlocal, Qipv4, Qdatagram; |
d888760c | 126 | Lisp_Object Qreal, Qnetwork, Qserial; |
e1652a86 KS |
127 | #ifdef AF_INET6 |
128 | Lisp_Object Qipv6; | |
129 | #endif | |
d888760c GM |
130 | Lisp_Object QCport, QCspeed, QCprocess; |
131 | Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven; | |
132 | Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary; | |
9057ff80 | 133 | Lisp_Object QCname, QCbuffer, QChost, QCservice, QCtype; |
e690ca94 | 134 | Lisp_Object QClocal, QCremote, QCcoding; |
9057ff80 | 135 | Lisp_Object QCserver, QCnowait, QCnoquery, QCstop; |
faa7db08 | 136 | Lisp_Object QCsentinel, QClog, QCoptions, QCplist; |
6545aada | 137 | Lisp_Object Qlast_nonmenu_event; |
3635ecad JR |
138 | /* QCfamily is declared and initialized in xfaces.c, |
139 | QCfilter in keyboard.c. */ | |
140 | extern Lisp_Object QCfamily, QCfilter; | |
141 | ||
d0d6b7c5 JB |
142 | /* Qexit is declared and initialized in eval.c. */ |
143 | ||
e0f712ba AC |
144 | /* QCfamily is defined in xfaces.c. */ |
145 | extern Lisp_Object QCfamily; | |
146 | /* QCfilter is defined in keyboard.c. */ | |
147 | extern Lisp_Object QCfilter; | |
148 | ||
934e2a68 EZ |
149 | Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname, Qtpgid; |
150 | Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime, Qcstime; | |
151 | Lisp_Object Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs; | |
89c874cf | 152 | Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtime, Qctime; |
934e2a68 | 153 | |
d0d6b7c5 | 154 | #ifdef HAVE_SOCKETS |
d888760c GM |
155 | #define NETCONN_P(p) (EQ (XPROCESS (p)->type, Qnetwork)) |
156 | #define NETCONN1_P(p) (EQ ((p)->type, Qnetwork)) | |
157 | #define SERIALCONN_P(p) (EQ (XPROCESS (p)->type, Qserial)) | |
158 | #define SERIALCONN1_P(p) (EQ ((p)->type, Qserial)) | |
d0d6b7c5 JB |
159 | #else |
160 | #define NETCONN_P(p) 0 | |
e690ca94 | 161 | #define NETCONN1_P(p) 0 |
d888760c GM |
162 | #define SERIALCONN_P(p) 0 |
163 | #define SERIALCONN1_P(p) 0 | |
d0d6b7c5 JB |
164 | #endif /* HAVE_SOCKETS */ |
165 | ||
166 | /* Define first descriptor number available for subprocesses. */ | |
d0d6b7c5 | 167 | #define FIRST_PROC_DESC 3 |
d0d6b7c5 JB |
168 | |
169 | /* Define SIGCHLD as an alias for SIGCLD. There are many conditionals | |
170 | testing SIGCHLD. */ | |
171 | ||
172 | #if !defined (SIGCHLD) && defined (SIGCLD) | |
173 | #define SIGCHLD SIGCLD | |
174 | #endif /* SIGCLD */ | |
175 | ||
176 | #include "syssignal.h" | |
177 | ||
889255b4 | 178 | #include "syswait.h" |
d0d6b7c5 | 179 | |
d9e7c622 | 180 | extern char *get_operating_system_release (); |
41d03b9a | 181 | |
d888760c GM |
182 | /* Serial processes require termios or Windows. */ |
183 | #if defined (HAVE_TERMIOS) || defined (WINDOWSNT) | |
184 | #define HAVE_SERIAL | |
185 | #endif | |
186 | ||
187 | #ifdef HAVE_SERIAL | |
188 | /* From sysdep.c or w32.c */ | |
189 | extern int serial_open (char *port); | |
190 | extern void serial_configure (struct Lisp_Process *p, Lisp_Object contact); | |
191 | #endif | |
192 | ||
3ec68006 | 193 | #ifndef USE_CRT_DLL |
b062d1fe | 194 | extern int errno; |
3ec68006 | 195 | #endif |
d0d6b7c5 | 196 | |
5f0929a7 RS |
197 | #ifndef HAVE_H_ERRNO |
198 | extern int h_errno; | |
199 | #endif | |
200 | ||
d0d6b7c5 JB |
201 | /* t means use pty, nil means use a pipe, |
202 | maybe other values to come. */ | |
dd2281ae | 203 | static Lisp_Object Vprocess_connection_type; |
d0d6b7c5 | 204 | |
17d02632 KH |
205 | /* These next two vars are non-static since sysdep.c uses them in the |
206 | emulation of `select'. */ | |
d0d6b7c5 | 207 | /* Number of events of change of status of a process. */ |
17d02632 | 208 | int process_tick; |
d0d6b7c5 | 209 | /* Number of events for which the user or sentinel has been notified. */ |
17d02632 | 210 | int update_tick; |
d0d6b7c5 | 211 | |
dd2a17ab KS |
212 | /* Define NON_BLOCKING_CONNECT if we can support non-blocking connects. */ |
213 | ||
214 | #ifdef BROKEN_NON_BLOCKING_CONNECT | |
215 | #undef NON_BLOCKING_CONNECT | |
216 | #else | |
217 | #ifndef NON_BLOCKING_CONNECT | |
218 | #ifdef HAVE_SOCKETS | |
219 | #ifdef HAVE_SELECT | |
220 | #if defined (HAVE_GETPEERNAME) || defined (GNU_LINUX) | |
221 | #if defined (O_NONBLOCK) || defined (O_NDELAY) | |
222 | #if defined (EWOULDBLOCK) || defined (EINPROGRESS) | |
223 | #define NON_BLOCKING_CONNECT | |
224 | #endif /* EWOULDBLOCK || EINPROGRESS */ | |
225 | #endif /* O_NONBLOCK || O_NDELAY */ | |
226 | #endif /* HAVE_GETPEERNAME || GNU_LINUX */ | |
227 | #endif /* HAVE_SELECT */ | |
228 | #endif /* HAVE_SOCKETS */ | |
229 | #endif /* NON_BLOCKING_CONNECT */ | |
230 | #endif /* BROKEN_NON_BLOCKING_CONNECT */ | |
231 | ||
e690ca94 KS |
232 | /* Define DATAGRAM_SOCKETS if datagrams can be used safely on |
233 | this system. We need to read full packets, so we need a | |
234 | "non-destructive" select. So we require either native select, | |
235 | or emulation of select using FIONREAD. */ | |
236 | ||
e690ca94 KS |
237 | #ifdef BROKEN_DATAGRAM_SOCKETS |
238 | #undef DATAGRAM_SOCKETS | |
239 | #else | |
240 | #ifndef DATAGRAM_SOCKETS | |
241 | #ifdef HAVE_SOCKETS | |
242 | #if defined (HAVE_SELECT) || defined (FIONREAD) | |
243 | #if defined (HAVE_SENDTO) && defined (HAVE_RECVFROM) && defined (EMSGSIZE) | |
244 | #define DATAGRAM_SOCKETS | |
245 | #endif /* HAVE_SENDTO && HAVE_RECVFROM && EMSGSIZE */ | |
246 | #endif /* HAVE_SELECT || FIONREAD */ | |
247 | #endif /* HAVE_SOCKETS */ | |
248 | #endif /* DATAGRAM_SOCKETS */ | |
249 | #endif /* BROKEN_DATAGRAM_SOCKETS */ | |
250 | ||
6b61353c KH |
251 | #if !defined (ADAPTIVE_READ_BUFFERING) && !defined (NO_ADAPTIVE_READ_BUFFERING) |
252 | #ifdef EMACS_HAS_USECS | |
253 | #define ADAPTIVE_READ_BUFFERING | |
254 | #endif | |
255 | #endif | |
256 | ||
257 | #ifdef ADAPTIVE_READ_BUFFERING | |
258 | #define READ_OUTPUT_DELAY_INCREMENT 10000 | |
259 | #define READ_OUTPUT_DELAY_MAX (READ_OUTPUT_DELAY_INCREMENT * 5) | |
260 | #define READ_OUTPUT_DELAY_MAX_MAX (READ_OUTPUT_DELAY_INCREMENT * 7) | |
261 | ||
db853b7a KS |
262 | /* Number of processes which have a non-zero read_output_delay, |
263 | and therefore might be delayed for adaptive read buffering. */ | |
6b61353c KH |
264 | |
265 | static int process_output_delay_count; | |
266 | ||
db853b7a | 267 | /* Non-zero if any process has non-nil read_output_skip. */ |
6b61353c KH |
268 | |
269 | static int process_output_skip; | |
270 | ||
271 | /* Non-nil means to delay reading process output to improve buffering. | |
272 | A value of t means that delay is reset after each send, any other | |
db853b7a KS |
273 | non-nil value does not reset the delay. A value of nil disables |
274 | adaptive read buffering completely. */ | |
6b61353c KH |
275 | static Lisp_Object Vprocess_adaptive_read_buffering; |
276 | #else | |
277 | #define process_output_delay_count 0 | |
278 | #endif | |
279 | ||
e690ca94 | 280 | |
5886acf9 | 281 | #include "sysselect.h" |
d0d6b7c5 | 282 | |
ff6daed3 KS |
283 | static int keyboard_bit_set P_ ((SELECT_TYPE *)); |
284 | static void deactivate_process P_ ((Lisp_Object)); | |
285 | static void status_notify P_ ((struct Lisp_Process *)); | |
286 | static int read_process_output P_ ((Lisp_Object, int)); | |
850d0752 | 287 | static void create_pty P_ ((Lisp_Object)); |
41d03b9a | 288 | |
583dcae4 | 289 | /* If we support a window system, turn on the code to poll periodically |
44ade2e9 | 290 | to detect C-g. It isn't actually used when doing interrupt input. */ |
583dcae4 | 291 | #ifdef HAVE_WINDOW_SYSTEM |
44ade2e9 RS |
292 | #define POLL_FOR_INPUT |
293 | #endif | |
294 | ||
84af9896 RS |
295 | static Lisp_Object get_process (); |
296 | static void exec_sentinel (); | |
297 | ||
298 | extern EMACS_TIME timer_check (); | |
299 | extern int timers_run; | |
300 | \f | |
a69281ff | 301 | /* Mask of bits indicating the descriptors that we wait for input on. */ |
d0d6b7c5 | 302 | |
dd2281ae RS |
303 | static SELECT_TYPE input_wait_mask; |
304 | ||
994d9841 | 305 | /* Mask that excludes keyboard input descriptor(s). */ |
a69281ff RS |
306 | |
307 | static SELECT_TYPE non_keyboard_wait_mask; | |
308 | ||
994d9841 | 309 | /* Mask that excludes process input descriptor(s). */ |
b5dc1c83 RS |
310 | |
311 | static SELECT_TYPE non_process_wait_mask; | |
312 | ||
994d9841 NR |
313 | /* Mask for the gpm mouse input descriptor. */ |
314 | ||
315 | static SELECT_TYPE gpm_wait_mask; | |
316 | ||
bad49fc7 | 317 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
318 | /* Mask of bits indicating the descriptors that we wait for connect to |
319 | complete on. Once they complete, they are removed from this mask | |
320 | and added to the input_wait_mask and non_keyboard_wait_mask. */ | |
321 | ||
322 | static SELECT_TYPE connect_wait_mask; | |
323 | ||
324 | /* Number of bits set in connect_wait_mask. */ | |
325 | static int num_pending_connects; | |
326 | ||
bad49fc7 KS |
327 | #define IF_NON_BLOCKING_CONNECT(s) s |
328 | #else | |
329 | #define IF_NON_BLOCKING_CONNECT(s) | |
330 | #endif | |
331 | ||
7d0e672e RS |
332 | /* The largest descriptor currently in use for a process object. */ |
333 | static int max_process_desc; | |
334 | ||
a69281ff RS |
335 | /* The largest descriptor currently in use for keyboard input. */ |
336 | static int max_keyboard_desc; | |
d0d6b7c5 | 337 | |
994d9841 NR |
338 | /* The largest descriptor currently in use for gpm mouse input. */ |
339 | static int max_gpm_desc; | |
340 | ||
dd2281ae RS |
341 | /* Nonzero means delete a process right away if it exits. */ |
342 | static int delete_exited_processes; | |
d0d6b7c5 JB |
343 | |
344 | /* Indexed by descriptor, gives the process (if any) for that descriptor */ | |
41f3aa98 | 345 | Lisp_Object chan_process[MAXDESC]; |
d0d6b7c5 JB |
346 | |
347 | /* Alist of elements (NAME . PROCESS) */ | |
41f3aa98 | 348 | Lisp_Object Vprocess_alist; |
d0d6b7c5 JB |
349 | |
350 | /* Buffered-ahead input char from process, indexed by channel. | |
351 | -1 means empty (no char is buffered). | |
352 | Used on sys V where the only way to tell if there is any | |
353 | output from the process is to read at least one char. | |
354 | Always -1 on systems that support FIONREAD. */ | |
355 | ||
e98d950b RS |
356 | /* Don't make static; need to access externally. */ |
357 | int proc_buffered_char[MAXDESC]; | |
dd2281ae | 358 | |
0fa1789e | 359 | /* Table of `struct coding-system' for each process. */ |
c7580538 KH |
360 | static struct coding_system *proc_decode_coding_system[MAXDESC]; |
361 | static struct coding_system *proc_encode_coding_system[MAXDESC]; | |
0fa1789e | 362 | |
e690ca94 KS |
363 | #ifdef DATAGRAM_SOCKETS |
364 | /* Table of `partner address' for datagram sockets. */ | |
365 | struct sockaddr_and_len { | |
366 | struct sockaddr *sa; | |
367 | int len; | |
368 | } datagram_address[MAXDESC]; | |
369 | #define DATAGRAM_CHAN_P(chan) (datagram_address[chan].sa != 0) | |
60f0fb11 | 370 | #define DATAGRAM_CONN_P(proc) (PROCESSP (proc) && datagram_address[XPROCESS (proc)->infd].sa != 0) |
e690ca94 KS |
371 | #else |
372 | #define DATAGRAM_CHAN_P(chan) (0) | |
373 | #define DATAGRAM_CONN_P(proc) (0) | |
374 | #endif | |
375 | ||
93b4f699 RS |
376 | /* Maximum number of bytes to send to a pty without an eof. */ |
377 | static int pty_max_bytes; | |
3b9a3dfa | 378 | |
84af9896 RS |
379 | /* Nonzero means don't run process sentinels. This is used |
380 | when exiting. */ | |
381 | int inhibit_sentinels; | |
382 | ||
875e6b94 | 383 | #ifdef HAVE_PTYS |
e62cab61 DL |
384 | #ifdef HAVE_PTY_H |
385 | #include <pty.h> | |
386 | #endif | |
875e6b94 | 387 | /* The file name of the pty opened by allocate_pty. */ |
3b9a3dfa RS |
388 | |
389 | static char pty_name[24]; | |
875e6b94 | 390 | #endif |
d0d6b7c5 JB |
391 | \f |
392 | /* Compute the Lisp form of the process status, p->status, from | |
393 | the numeric status that was returned by `wait'. */ | |
394 | ||
bba104c1 | 395 | static Lisp_Object status_convert (int); |
f9738840 | 396 | |
ff6daed3 | 397 | static void |
d0d6b7c5 JB |
398 | update_status (p) |
399 | struct Lisp_Process *p; | |
400 | { | |
6bfd98e7 | 401 | eassert (p->raw_status_new); |
bba104c1 | 402 | p->status = status_convert (p->raw_status); |
6bfd98e7 | 403 | p->raw_status_new = 0; |
d0d6b7c5 JB |
404 | } |
405 | ||
177c0ea7 | 406 | /* Convert a process status word in Unix format to |
d0d6b7c5 JB |
407 | the list that we use internally. */ |
408 | ||
ff6daed3 | 409 | static Lisp_Object |
bba104c1 | 410 | status_convert (int w) |
d0d6b7c5 JB |
411 | { |
412 | if (WIFSTOPPED (w)) | |
413 | return Fcons (Qstop, Fcons (make_number (WSTOPSIG (w)), Qnil)); | |
414 | else if (WIFEXITED (w)) | |
415 | return Fcons (Qexit, Fcons (make_number (WRETCODE (w)), | |
416 | WCOREDUMP (w) ? Qt : Qnil)); | |
417 | else if (WIFSIGNALED (w)) | |
418 | return Fcons (Qsignal, Fcons (make_number (WTERMSIG (w)), | |
419 | WCOREDUMP (w) ? Qt : Qnil)); | |
420 | else | |
421 | return Qrun; | |
422 | } | |
423 | ||
424 | /* Given a status-list, extract the three pieces of information | |
425 | and store them individually through the three pointers. */ | |
426 | ||
ff6daed3 | 427 | static void |
d0d6b7c5 JB |
428 | decode_status (l, symbol, code, coredump) |
429 | Lisp_Object l; | |
430 | Lisp_Object *symbol; | |
431 | int *code; | |
432 | int *coredump; | |
433 | { | |
434 | Lisp_Object tem; | |
435 | ||
bcd69aea | 436 | if (SYMBOLP (l)) |
d0d6b7c5 JB |
437 | { |
438 | *symbol = l; | |
439 | *code = 0; | |
440 | *coredump = 0; | |
441 | } | |
442 | else | |
443 | { | |
70949dac KR |
444 | *symbol = XCAR (l); |
445 | tem = XCDR (l); | |
446 | *code = XFASTINT (XCAR (tem)); | |
447 | tem = XCDR (tem); | |
d0d6b7c5 JB |
448 | *coredump = !NILP (tem); |
449 | } | |
450 | } | |
451 | ||
452 | /* Return a string describing a process status list. */ | |
453 | ||
116c423c KS |
454 | static Lisp_Object |
455 | status_message (p) | |
456 | struct Lisp_Process *p; | |
d0d6b7c5 | 457 | { |
116c423c | 458 | Lisp_Object status = p->status; |
d0d6b7c5 JB |
459 | Lisp_Object symbol; |
460 | int code, coredump; | |
461 | Lisp_Object string, string2; | |
462 | ||
463 | decode_status (status, &symbol, &code, &coredump); | |
464 | ||
465 | if (EQ (symbol, Qsignal) || EQ (symbol, Qstop)) | |
466 | { | |
68c45bf0 | 467 | char *signame; |
ca9c0567 | 468 | synchronize_system_messages_locale (); |
68c45bf0 | 469 | signame = strsignal (code); |
b97ad9ea | 470 | if (signame == 0) |
66bd43d1 KH |
471 | string = build_string ("unknown"); |
472 | else | |
473 | { | |
474 | int c1, c2; | |
475 | ||
476 | string = make_unibyte_string (signame, strlen (signame)); | |
477 | if (! NILP (Vlocale_coding_system)) | |
478 | string = (code_convert_string_norecord | |
479 | (string, Vlocale_coding_system, 0)); | |
480 | c1 = STRING_CHAR ((char *) SDATA (string), 0); | |
481 | c2 = DOWNCASE (c1); | |
482 | if (c1 != c2) | |
4735b74e | 483 | Faset (string, make_number (0), make_number (c2)); |
66bd43d1 | 484 | } |
d0d6b7c5 | 485 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
d0d6b7c5 JB |
486 | return concat2 (string, string2); |
487 | } | |
488 | else if (EQ (symbol, Qexit)) | |
489 | { | |
116c423c KS |
490 | if (NETCONN1_P (p)) |
491 | return build_string (code == 0 ? "deleted\n" : "connection broken by remote peer\n"); | |
d0d6b7c5 JB |
492 | if (code == 0) |
493 | return build_string ("finished\n"); | |
f2980264 | 494 | string = Fnumber_to_string (make_number (code)); |
d0d6b7c5 | 495 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
e690ca94 KS |
496 | return concat3 (build_string ("exited abnormally with code "), |
497 | string, string2); | |
d0d6b7c5 | 498 | } |
dd2a17ab KS |
499 | else if (EQ (symbol, Qfailed)) |
500 | { | |
501 | string = Fnumber_to_string (make_number (code)); | |
502 | string2 = build_string ("\n"); | |
e690ca94 KS |
503 | return concat3 (build_string ("failed with code "), |
504 | string, string2); | |
dd2a17ab | 505 | } |
d0d6b7c5 JB |
506 | else |
507 | return Fcopy_sequence (Fsymbol_name (symbol)); | |
508 | } | |
509 | \f | |
510 | #ifdef HAVE_PTYS | |
d0d6b7c5 | 511 | |
875e6b94 KH |
512 | /* Open an available pty, returning a file descriptor. |
513 | Return -1 on failure. | |
514 | The file name of the terminal corresponding to the pty | |
515 | is left in the variable pty_name. */ | |
516 | ||
ff6daed3 | 517 | static int |
d0d6b7c5 JB |
518 | allocate_pty () |
519 | { | |
dfcf069d | 520 | register int c, i; |
d0d6b7c5 JB |
521 | int fd; |
522 | ||
523 | #ifdef PTY_ITERATION | |
524 | PTY_ITERATION | |
525 | #else | |
526 | for (c = FIRST_PTY_LETTER; c <= 'z'; c++) | |
527 | for (i = 0; i < 16; i++) | |
528 | #endif | |
529 | { | |
26d7389d | 530 | struct stat stb; /* Used in some PTY_OPEN. */ |
d0d6b7c5 JB |
531 | #ifdef PTY_NAME_SPRINTF |
532 | PTY_NAME_SPRINTF | |
d0d6b7c5 JB |
533 | #else |
534 | sprintf (pty_name, "/dev/pty%c%x", c, i); | |
d0d6b7c5 JB |
535 | #endif /* no PTY_NAME_SPRINTF */ |
536 | ||
4d7c105e RS |
537 | #ifdef PTY_OPEN |
538 | PTY_OPEN; | |
539 | #else /* no PTY_OPEN */ | |
34967d0f | 540 | { |
34967d0f SM |
541 | { /* Some systems name their pseudoterminals so that there are gaps in |
542 | the usual sequence - for example, on HP9000/S700 systems, there | |
543 | are no pseudoterminals with names ending in 'f'. So we wait for | |
544 | three failures in a row before deciding that we've reached the | |
545 | end of the ptys. */ | |
546 | int failed_count = 0; | |
f3d9532b | 547 | |
34967d0f SM |
548 | if (stat (pty_name, &stb) < 0) |
549 | { | |
550 | failed_count++; | |
551 | if (failed_count >= 3) | |
552 | return -1; | |
553 | } | |
554 | else | |
555 | failed_count = 0; | |
32676c08 | 556 | } |
34967d0f SM |
557 | # ifdef O_NONBLOCK |
558 | fd = emacs_open (pty_name, O_RDWR | O_NONBLOCK, 0); | |
559 | # else | |
560 | fd = emacs_open (pty_name, O_RDWR | O_NDELAY, 0); | |
561 | # endif | |
34967d0f | 562 | } |
4d7c105e | 563 | #endif /* no PTY_OPEN */ |
d0d6b7c5 JB |
564 | |
565 | if (fd >= 0) | |
566 | { | |
567 | /* check to make certain that both sides are available | |
568 | this avoids a nasty yet stupid bug in rlogins */ | |
569 | #ifdef PTY_TTY_NAME_SPRINTF | |
570 | PTY_TTY_NAME_SPRINTF | |
d0d6b7c5 | 571 | #else |
63136da6 | 572 | sprintf (pty_name, "/dev/tty%c%x", c, i); |
d0d6b7c5 | 573 | #endif /* no PTY_TTY_NAME_SPRINTF */ |
d0d6b7c5 JB |
574 | if (access (pty_name, 6) != 0) |
575 | { | |
68c45bf0 | 576 | emacs_close (fd); |
132d0475 | 577 | # ifndef __sgi |
d0d6b7c5 | 578 | continue; |
34967d0f | 579 | # else |
d0d6b7c5 | 580 | return -1; |
132d0475 | 581 | # endif /* __sgi */ |
d0d6b7c5 | 582 | } |
d0d6b7c5 JB |
583 | setup_pty (fd); |
584 | return fd; | |
585 | } | |
586 | } | |
587 | return -1; | |
588 | } | |
589 | #endif /* HAVE_PTYS */ | |
590 | \f | |
ff6daed3 | 591 | static Lisp_Object |
d0d6b7c5 JB |
592 | make_process (name) |
593 | Lisp_Object name; | |
594 | { | |
595 | register Lisp_Object val, tem, name1; | |
596 | register struct Lisp_Process *p; | |
597 | char suffix[10]; | |
598 | register int i; | |
599 | ||
98423852 | 600 | p = allocate_process (); |
23d6bb9c | 601 | |
60f0fb11 SM |
602 | p->infd = -1; |
603 | p->outfd = -1; | |
604 | p->tick = 0; | |
605 | p->update_tick = 0; | |
6bfd98e7 | 606 | p->pid = 0; |
fd41ad98 | 607 | p->pty_flag = 0; |
6bfd98e7 | 608 | p->raw_status_new = 0; |
d0d6b7c5 JB |
609 | p->status = Qrun; |
610 | p->mark = Fmake_marker (); | |
847c048e | 611 | p->kill_without_query = 0; |
d0d6b7c5 | 612 | |
6b61353c | 613 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
614 | p->adaptive_read_buffering = 0; |
615 | p->read_output_delay = 0; | |
616 | p->read_output_skip = 0; | |
6b61353c KH |
617 | #endif |
618 | ||
d0d6b7c5 JB |
619 | /* If name is already in use, modify it until it is unused. */ |
620 | ||
621 | name1 = name; | |
622 | for (i = 1; ; i++) | |
623 | { | |
624 | tem = Fget_process (name1); | |
625 | if (NILP (tem)) break; | |
626 | sprintf (suffix, "<%d>", i); | |
627 | name1 = concat2 (name, build_string (suffix)); | |
628 | } | |
629 | name = name1; | |
630 | p->name = name; | |
23d6bb9c | 631 | XSETPROCESS (val, p); |
d0d6b7c5 JB |
632 | Vprocess_alist = Fcons (Fcons (name, val), Vprocess_alist); |
633 | return val; | |
634 | } | |
635 | ||
ff6daed3 | 636 | static void |
d0d6b7c5 JB |
637 | remove_process (proc) |
638 | register Lisp_Object proc; | |
639 | { | |
640 | register Lisp_Object pair; | |
641 | ||
642 | pair = Frassq (proc, Vprocess_alist); | |
643 | Vprocess_alist = Fdelq (pair, Vprocess_alist); | |
d0d6b7c5 JB |
644 | |
645 | deactivate_process (proc); | |
646 | } | |
03f04413 KH |
647 | |
648 | /* Setup coding systems of PROCESS. */ | |
649 | ||
650 | void | |
651 | setup_process_coding_systems (process) | |
652 | Lisp_Object process; | |
653 | { | |
654 | struct Lisp_Process *p = XPROCESS (process); | |
60f0fb11 SM |
655 | int inch = p->infd; |
656 | int outch = p->outfd; | |
8f924df7 | 657 | Lisp_Object coding_system; |
03f04413 | 658 | |
20f1ef2e KH |
659 | if (inch < 0 || outch < 0) |
660 | return; | |
661 | ||
03f04413 KH |
662 | if (!proc_decode_coding_system[inch]) |
663 | proc_decode_coding_system[inch] | |
664 | = (struct coding_system *) xmalloc (sizeof (struct coding_system)); | |
8f924df7 | 665 | coding_system = p->decode_coding_system; |
03f04413 | 666 | if (! NILP (p->filter)) |
5431bd6a | 667 | ; |
03f04413 KH |
668 | else if (BUFFERP (p->buffer)) |
669 | { | |
670 | if (NILP (XBUFFER (p->buffer)->enable_multibyte_characters)) | |
8f924df7 | 671 | coding_system = raw_text_coding_system (coding_system); |
03f04413 | 672 | } |
8f924df7 | 673 | setup_coding_system (coding_system, proc_decode_coding_system[inch]); |
03f04413 KH |
674 | |
675 | if (!proc_encode_coding_system[outch]) | |
676 | proc_encode_coding_system[outch] | |
677 | = (struct coding_system *) xmalloc (sizeof (struct coding_system)); | |
678 | setup_coding_system (p->encode_coding_system, | |
679 | proc_encode_coding_system[outch]); | |
680 | } | |
d0d6b7c5 JB |
681 | \f |
682 | DEFUN ("processp", Fprocessp, Sprocessp, 1, 1, 0, | |
fdb82f93 PJ |
683 | doc: /* Return t if OBJECT is a process. */) |
684 | (object) | |
4ee3e309 | 685 | Lisp_Object object; |
d0d6b7c5 | 686 | { |
4ee3e309 | 687 | return PROCESSP (object) ? Qt : Qnil; |
d0d6b7c5 JB |
688 | } |
689 | ||
690 | DEFUN ("get-process", Fget_process, Sget_process, 1, 1, 0, | |
fdb82f93 PJ |
691 | doc: /* Return the process named NAME, or nil if there is none. */) |
692 | (name) | |
d0d6b7c5 JB |
693 | register Lisp_Object name; |
694 | { | |
bcd69aea | 695 | if (PROCESSP (name)) |
d0d6b7c5 | 696 | return name; |
b7826503 | 697 | CHECK_STRING (name); |
d0d6b7c5 JB |
698 | return Fcdr (Fassoc (name, Vprocess_alist)); |
699 | } | |
700 | ||
701 | DEFUN ("get-buffer-process", Fget_buffer_process, Sget_buffer_process, 1, 1, 0, | |
fdb82f93 PJ |
702 | doc: /* Return the (or a) process associated with BUFFER. |
703 | BUFFER may be a buffer or the name of one. */) | |
704 | (buffer) | |
4ee3e309 | 705 | register Lisp_Object buffer; |
d0d6b7c5 JB |
706 | { |
707 | register Lisp_Object buf, tail, proc; | |
708 | ||
4ee3e309 EN |
709 | if (NILP (buffer)) return Qnil; |
710 | buf = Fget_buffer (buffer); | |
d0d6b7c5 JB |
711 | if (NILP (buf)) return Qnil; |
712 | ||
99784d63 | 713 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 714 | { |
99784d63 | 715 | proc = Fcdr (XCAR (tail)); |
bcd69aea | 716 | if (PROCESSP (proc) && EQ (XPROCESS (proc)->buffer, buf)) |
d0d6b7c5 JB |
717 | return proc; |
718 | } | |
719 | return Qnil; | |
720 | } | |
721 | ||
ebb9e16f JB |
722 | /* This is how commands for the user decode process arguments. It |
723 | accepts a process, a process name, a buffer, a buffer name, or nil. | |
724 | Buffers denote the first process in the buffer, and nil denotes the | |
725 | current buffer. */ | |
d0d6b7c5 | 726 | |
77b221b1 | 727 | static Lisp_Object |
d0d6b7c5 JB |
728 | get_process (name) |
729 | register Lisp_Object name; | |
730 | { | |
1619761d KH |
731 | register Lisp_Object proc, obj; |
732 | if (STRINGP (name)) | |
733 | { | |
734 | obj = Fget_process (name); | |
735 | if (NILP (obj)) | |
736 | obj = Fget_buffer (name); | |
737 | if (NILP (obj)) | |
d5db4077 | 738 | error ("Process %s does not exist", SDATA (name)); |
1619761d KH |
739 | } |
740 | else if (NILP (name)) | |
741 | obj = Fcurrent_buffer (); | |
d0d6b7c5 | 742 | else |
1619761d KH |
743 | obj = name; |
744 | ||
745 | /* Now obj should be either a buffer object or a process object. | |
746 | */ | |
747 | if (BUFFERP (obj)) | |
d0d6b7c5 | 748 | { |
1619761d | 749 | proc = Fget_buffer_process (obj); |
d0d6b7c5 | 750 | if (NILP (proc)) |
d5db4077 | 751 | error ("Buffer %s has no process", SDATA (XBUFFER (obj)->name)); |
d0d6b7c5 | 752 | } |
d0d6b7c5 | 753 | else |
1619761d | 754 | { |
b7826503 | 755 | CHECK_PROCESS (obj); |
1619761d KH |
756 | proc = obj; |
757 | } | |
758 | return proc; | |
d0d6b7c5 JB |
759 | } |
760 | ||
a5cfdda8 KS |
761 | |
762 | #ifdef SIGCHLD | |
763 | /* Fdelete_process promises to immediately forget about the process, but in | |
764 | reality, Emacs needs to remember those processes until they have been | |
765 | treated by sigchld_handler; otherwise this handler would consider the | |
766 | process as being synchronous and say that the synchronous process is | |
767 | dead. */ | |
768 | static Lisp_Object deleted_pid_list; | |
769 | #endif | |
770 | ||
d0d6b7c5 | 771 | DEFUN ("delete-process", Fdelete_process, Sdelete_process, 1, 1, 0, |
fdb82f93 PJ |
772 | doc: /* Delete PROCESS: kill it and forget about it immediately. |
773 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
774 | nil, indicating the current buffer's process. */) | |
775 | (process) | |
4ee3e309 | 776 | register Lisp_Object process; |
d0d6b7c5 | 777 | { |
ff6daed3 KS |
778 | register struct Lisp_Process *p; |
779 | ||
4ee3e309 | 780 | process = get_process (process); |
ff6daed3 KS |
781 | p = XPROCESS (process); |
782 | ||
6bfd98e7 | 783 | p->raw_status_new = 0; |
d888760c | 784 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 785 | { |
ff6daed3 | 786 | p->status = Fcons (Qexit, Fcons (make_number (0), Qnil)); |
60f0fb11 | 787 | p->tick = ++process_tick; |
ff6daed3 | 788 | status_notify (p); |
d0d6b7c5 | 789 | } |
60f0fb11 | 790 | else if (p->infd >= 0) |
d0d6b7c5 | 791 | { |
a5cfdda8 KS |
792 | #ifdef SIGCHLD |
793 | Lisp_Object symbol; | |
d30fe779 EZ |
794 | /* Assignment to EMACS_INT stops GCC whining about limited range |
795 | of data type. */ | |
29ed4d51 | 796 | EMACS_INT pid = p->pid; |
a5cfdda8 KS |
797 | |
798 | /* No problem storing the pid here, as it is still in Vprocess_alist. */ | |
d30fe779 | 799 | deleted_pid_list = Fcons (make_fixnum_or_float (pid), |
a5cfdda8 KS |
800 | /* GC treated elements set to nil. */ |
801 | Fdelq (Qnil, deleted_pid_list)); | |
802 | /* If the process has already signaled, remove it from the list. */ | |
803 | if (p->raw_status_new) | |
804 | update_status (p); | |
805 | symbol = p->status; | |
806 | if (CONSP (p->status)) | |
807 | symbol = XCAR (p->status); | |
808 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit)) | |
29ed4d51 CY |
809 | deleted_pid_list |
810 | = Fdelete (make_fixnum_or_float (pid), deleted_pid_list); | |
a5cfdda8 KS |
811 | else |
812 | #endif | |
813 | { | |
814 | Fkill_process (process, Qnil); | |
815 | /* Do this now, since remove_process will make sigchld_handler do nothing. */ | |
816 | p->status | |
817 | = Fcons (Qsignal, Fcons (make_number (SIGKILL), Qnil)); | |
60f0fb11 | 818 | p->tick = ++process_tick; |
a5cfdda8 KS |
819 | status_notify (p); |
820 | } | |
d0d6b7c5 | 821 | } |
4ee3e309 | 822 | remove_process (process); |
d0d6b7c5 JB |
823 | return Qnil; |
824 | } | |
825 | \f | |
826 | DEFUN ("process-status", Fprocess_status, Sprocess_status, 1, 1, 0, | |
fdb82f93 PJ |
827 | doc: /* Return the status of PROCESS. |
828 | The returned value is one of the following symbols: | |
829 | run -- for a process that is running. | |
830 | stop -- for a process stopped but continuable. | |
831 | exit -- for a process that has exited. | |
832 | signal -- for a process that has got a fatal signal. | |
833 | open -- for a network stream connection that is open. | |
e690ca94 | 834 | listen -- for a network stream server that is listening. |
fdb82f93 | 835 | closed -- for a network stream connection that is closed. |
e4984112 KS |
836 | connect -- when waiting for a non-blocking connection to complete. |
837 | failed -- when a non-blocking connection has failed. | |
fdb82f93 PJ |
838 | nil -- if arg is a process name and no such process exists. |
839 | PROCESS may be a process, a buffer, the name of a process, or | |
840 | nil, indicating the current buffer's process. */) | |
841 | (process) | |
4ee3e309 | 842 | register Lisp_Object process; |
d0d6b7c5 JB |
843 | { |
844 | register struct Lisp_Process *p; | |
845 | register Lisp_Object status; | |
343f4114 | 846 | |
4ee3e309 EN |
847 | if (STRINGP (process)) |
848 | process = Fget_process (process); | |
343f4114 | 849 | else |
4ee3e309 | 850 | process = get_process (process); |
343f4114 | 851 | |
4ee3e309 EN |
852 | if (NILP (process)) |
853 | return process; | |
343f4114 | 854 | |
4ee3e309 | 855 | p = XPROCESS (process); |
6bfd98e7 | 856 | if (p->raw_status_new) |
d0d6b7c5 JB |
857 | update_status (p); |
858 | status = p->status; | |
bcd69aea | 859 | if (CONSP (status)) |
70949dac | 860 | status = XCAR (status); |
d888760c | 861 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 862 | { |
e690ca94 | 863 | if (EQ (status, Qexit)) |
d0d6b7c5 | 864 | status = Qclosed; |
e690ca94 KS |
865 | else if (EQ (p->command, Qt)) |
866 | status = Qstop; | |
867 | else if (EQ (status, Qrun)) | |
868 | status = Qopen; | |
d0d6b7c5 JB |
869 | } |
870 | return status; | |
871 | } | |
872 | ||
873 | DEFUN ("process-exit-status", Fprocess_exit_status, Sprocess_exit_status, | |
874 | 1, 1, 0, | |
fdb82f93 PJ |
875 | doc: /* Return the exit status of PROCESS or the signal number that killed it. |
876 | If PROCESS has not yet exited or died, return 0. */) | |
877 | (process) | |
4ee3e309 | 878 | register Lisp_Object process; |
d0d6b7c5 | 879 | { |
b7826503 | 880 | CHECK_PROCESS (process); |
6bfd98e7 | 881 | if (XPROCESS (process)->raw_status_new) |
4ee3e309 EN |
882 | update_status (XPROCESS (process)); |
883 | if (CONSP (XPROCESS (process)->status)) | |
70949dac | 884 | return XCAR (XCDR (XPROCESS (process)->status)); |
d0d6b7c5 JB |
885 | return make_number (0); |
886 | } | |
887 | ||
888 | DEFUN ("process-id", Fprocess_id, Sprocess_id, 1, 1, 0, | |
fdb82f93 | 889 | doc: /* Return the process id of PROCESS. |
f3d9532b | 890 | This is the pid of the external process which PROCESS uses or talks to. |
fdb82f93 PJ |
891 | For a network connection, this value is nil. */) |
892 | (process) | |
4ee3e309 | 893 | register Lisp_Object process; |
d0d6b7c5 | 894 | { |
d30fe779 EZ |
895 | /* Assignment to EMACS_INT stops GCC whining about limited range of |
896 | data type. */ | |
897 | EMACS_INT pid; | |
898 | ||
b7826503 | 899 | CHECK_PROCESS (process); |
d30fe779 EZ |
900 | pid = XPROCESS (process)->pid; |
901 | return (pid ? make_fixnum_or_float (pid) : Qnil); | |
d0d6b7c5 JB |
902 | } |
903 | ||
904 | DEFUN ("process-name", Fprocess_name, Sprocess_name, 1, 1, 0, | |
fdb82f93 PJ |
905 | doc: /* Return the name of PROCESS, as a string. |
906 | This is the name of the program invoked in PROCESS, | |
907 | possibly modified to make it unique among process names. */) | |
908 | (process) | |
4ee3e309 | 909 | register Lisp_Object process; |
d0d6b7c5 | 910 | { |
b7826503 | 911 | CHECK_PROCESS (process); |
4ee3e309 | 912 | return XPROCESS (process)->name; |
d0d6b7c5 JB |
913 | } |
914 | ||
915 | DEFUN ("process-command", Fprocess_command, Sprocess_command, 1, 1, 0, | |
fdb82f93 PJ |
916 | doc: /* Return the command that was executed to start PROCESS. |
917 | This is a list of strings, the first string being the program executed | |
918 | and the rest of the strings being the arguments given to it. | |
d888760c GM |
919 | For a network or serial process, this is nil (process is running) or t |
920 | \(process is stopped). */) | |
fdb82f93 | 921 | (process) |
4ee3e309 | 922 | register Lisp_Object process; |
d0d6b7c5 | 923 | { |
b7826503 | 924 | CHECK_PROCESS (process); |
4ee3e309 | 925 | return XPROCESS (process)->command; |
d0d6b7c5 JB |
926 | } |
927 | ||
3b9a3dfa | 928 | DEFUN ("process-tty-name", Fprocess_tty_name, Sprocess_tty_name, 1, 1, 0, |
fdb82f93 PJ |
929 | doc: /* Return the name of the terminal PROCESS uses, or nil if none. |
930 | This is the terminal that the process itself reads and writes on, | |
931 | not the name of the pty that Emacs uses to talk with that terminal. */) | |
932 | (process) | |
4ee3e309 | 933 | register Lisp_Object process; |
3b9a3dfa | 934 | { |
b7826503 | 935 | CHECK_PROCESS (process); |
4ee3e309 | 936 | return XPROCESS (process)->tty_name; |
3b9a3dfa RS |
937 | } |
938 | ||
d0d6b7c5 | 939 | DEFUN ("set-process-buffer", Fset_process_buffer, Sset_process_buffer, |
fdb82f93 PJ |
940 | 2, 2, 0, |
941 | doc: /* Set buffer associated with PROCESS to BUFFER (a buffer, or nil). */) | |
942 | (process, buffer) | |
4ee3e309 | 943 | register Lisp_Object process, buffer; |
d0d6b7c5 | 944 | { |
e690ca94 KS |
945 | struct Lisp_Process *p; |
946 | ||
b7826503 | 947 | CHECK_PROCESS (process); |
d0d6b7c5 | 948 | if (!NILP (buffer)) |
b7826503 | 949 | CHECK_BUFFER (buffer); |
e690ca94 KS |
950 | p = XPROCESS (process); |
951 | p->buffer = buffer; | |
d888760c | 952 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
e690ca94 | 953 | p->childp = Fplist_put (p->childp, QCbuffer, buffer); |
03f04413 | 954 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
955 | return buffer; |
956 | } | |
957 | ||
958 | DEFUN ("process-buffer", Fprocess_buffer, Sprocess_buffer, | |
fdb82f93 PJ |
959 | 1, 1, 0, |
960 | doc: /* Return the buffer PROCESS is associated with. | |
961 | Output from PROCESS is inserted in this buffer unless PROCESS has a filter. */) | |
962 | (process) | |
4ee3e309 | 963 | register Lisp_Object process; |
d0d6b7c5 | 964 | { |
b7826503 | 965 | CHECK_PROCESS (process); |
4ee3e309 | 966 | return XPROCESS (process)->buffer; |
d0d6b7c5 JB |
967 | } |
968 | ||
969 | DEFUN ("process-mark", Fprocess_mark, Sprocess_mark, | |
fdb82f93 PJ |
970 | 1, 1, 0, |
971 | doc: /* Return the marker for the end of the last output from PROCESS. */) | |
972 | (process) | |
4ee3e309 | 973 | register Lisp_Object process; |
d0d6b7c5 | 974 | { |
b7826503 | 975 | CHECK_PROCESS (process); |
4ee3e309 | 976 | return XPROCESS (process)->mark; |
d0d6b7c5 JB |
977 | } |
978 | ||
979 | DEFUN ("set-process-filter", Fset_process_filter, Sset_process_filter, | |
fdb82f93 PJ |
980 | 2, 2, 0, |
981 | doc: /* Give PROCESS the filter function FILTER; nil means no filter. | |
7b82c3b6 | 982 | A value of t means stop accepting output from the process. |
3452df9e KS |
983 | |
984 | When a process has a filter, its buffer is not used for output. | |
985 | Instead, each time it does output, the entire string of output is | |
177c0ea7 | 986 | passed to the filter. |
3452df9e | 987 | |
fdb82f93 | 988 | The filter gets two arguments: the process and the string of output. |
3452df9e KS |
989 | The string argument is normally a multibyte string, except: |
990 | - if the process' input coding system is no-conversion or raw-text, | |
991 | it is a unibyte string (the non-converted input), or else | |
992 | - if `default-enable-multibyte-characters' is nil, it is a unibyte | |
993 | string (the result of converting the decoded input multibyte | |
994 | string to unibyte with `string-make-unibyte'). */) | |
fdb82f93 | 995 | (process, filter) |
4ee3e309 | 996 | register Lisp_Object process, filter; |
d0d6b7c5 | 997 | { |
471f86b9 | 998 | struct Lisp_Process *p; |
177c0ea7 | 999 | |
b7826503 | 1000 | CHECK_PROCESS (process); |
471f86b9 GM |
1001 | p = XPROCESS (process); |
1002 | ||
1003 | /* Don't signal an error if the process' input file descriptor | |
1004 | is closed. This could make debugging Lisp more difficult, | |
1005 | for example when doing something like | |
1006 | ||
1007 | (setq process (start-process ...)) | |
1008 | (debug) | |
1009 | (set-process-filter process ...) */ | |
177c0ea7 | 1010 | |
60f0fb11 | 1011 | if (p->infd >= 0) |
a69281ff | 1012 | { |
e690ca94 | 1013 | if (EQ (filter, Qt) && !EQ (p->status, Qlisten)) |
471f86b9 | 1014 | { |
60f0fb11 SM |
1015 | FD_CLR (p->infd, &input_wait_mask); |
1016 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 1017 | } |
e690ca94 | 1018 | else if (EQ (p->filter, Qt) |
d888760c GM |
1019 | /* Network or serial process not stopped: */ |
1020 | && !EQ (p->command, Qt)) | |
471f86b9 | 1021 | { |
60f0fb11 SM |
1022 | FD_SET (p->infd, &input_wait_mask); |
1023 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 1024 | } |
a69281ff | 1025 | } |
177c0ea7 | 1026 | |
471f86b9 | 1027 | p->filter = filter; |
d888760c | 1028 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
e690ca94 | 1029 | p->childp = Fplist_put (p->childp, QCfilter, filter); |
03f04413 | 1030 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
1031 | return filter; |
1032 | } | |
1033 | ||
1034 | DEFUN ("process-filter", Fprocess_filter, Sprocess_filter, | |
fdb82f93 PJ |
1035 | 1, 1, 0, |
1036 | doc: /* Returns the filter function of PROCESS; nil if none. | |
1037 | See `set-process-filter' for more info on filter functions. */) | |
1038 | (process) | |
4ee3e309 | 1039 | register Lisp_Object process; |
d0d6b7c5 | 1040 | { |
b7826503 | 1041 | CHECK_PROCESS (process); |
4ee3e309 | 1042 | return XPROCESS (process)->filter; |
d0d6b7c5 JB |
1043 | } |
1044 | ||
1045 | DEFUN ("set-process-sentinel", Fset_process_sentinel, Sset_process_sentinel, | |
fdb82f93 PJ |
1046 | 2, 2, 0, |
1047 | doc: /* Give PROCESS the sentinel SENTINEL; nil for none. | |
1048 | The sentinel is called as a function when the process changes state. | |
1049 | It gets two arguments: the process, and a string describing the change. */) | |
1050 | (process, sentinel) | |
4ee3e309 | 1051 | register Lisp_Object process, sentinel; |
d0d6b7c5 | 1052 | { |
6b61353c KH |
1053 | struct Lisp_Process *p; |
1054 | ||
b7826503 | 1055 | CHECK_PROCESS (process); |
6b61353c KH |
1056 | p = XPROCESS (process); |
1057 | ||
1058 | p->sentinel = sentinel; | |
d888760c | 1059 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
6b61353c | 1060 | p->childp = Fplist_put (p->childp, QCsentinel, sentinel); |
d0d6b7c5 JB |
1061 | return sentinel; |
1062 | } | |
1063 | ||
1064 | DEFUN ("process-sentinel", Fprocess_sentinel, Sprocess_sentinel, | |
fdb82f93 PJ |
1065 | 1, 1, 0, |
1066 | doc: /* Return the sentinel of PROCESS; nil if none. | |
1067 | See `set-process-sentinel' for more info on sentinels. */) | |
1068 | (process) | |
4ee3e309 | 1069 | register Lisp_Object process; |
d0d6b7c5 | 1070 | { |
b7826503 | 1071 | CHECK_PROCESS (process); |
4ee3e309 | 1072 | return XPROCESS (process)->sentinel; |
d0d6b7c5 JB |
1073 | } |
1074 | ||
396df322 | 1075 | DEFUN ("set-process-window-size", Fset_process_window_size, |
fdb82f93 PJ |
1076 | Sset_process_window_size, 3, 3, 0, |
1077 | doc: /* Tell PROCESS that it has logical window size HEIGHT and WIDTH. */) | |
1078 | (process, height, width) | |
4ee3e309 | 1079 | register Lisp_Object process, height, width; |
396df322 | 1080 | { |
b7826503 PJ |
1081 | CHECK_PROCESS (process); |
1082 | CHECK_NATNUM (height); | |
1083 | CHECK_NATNUM (width); | |
177c0ea7 | 1084 | |
60f0fb11 SM |
1085 | if (XPROCESS (process)->infd < 0 |
1086 | || set_window_size (XPROCESS (process)->infd, | |
471f86b9 | 1087 | XINT (height), XINT (width)) <= 0) |
396df322 RS |
1088 | return Qnil; |
1089 | else | |
1090 | return Qt; | |
1091 | } | |
1092 | ||
52a1b894 | 1093 | DEFUN ("set-process-inherit-coding-system-flag", |
fdb82f93 PJ |
1094 | Fset_process_inherit_coding_system_flag, |
1095 | Sset_process_inherit_coding_system_flag, 2, 2, 0, | |
1096 | doc: /* Determine whether buffer of PROCESS will inherit coding-system. | |
1097 | If the second argument FLAG is non-nil, then the variable | |
1098 | `buffer-file-coding-system' of the buffer associated with PROCESS | |
1099 | will be bound to the value of the coding system used to decode | |
1100 | the process output. | |
1101 | ||
1102 | This is useful when the coding system specified for the process buffer | |
1103 | leaves either the character code conversion or the end-of-line conversion | |
1104 | unspecified, or if the coding system used to decode the process output | |
1105 | is more appropriate for saving the process buffer. | |
1106 | ||
1107 | Binding the variable `inherit-process-coding-system' to non-nil before | |
1108 | starting the process is an alternative way of setting the inherit flag | |
1109 | for the process which will run. */) | |
1110 | (process, flag) | |
52a1b894 EZ |
1111 | register Lisp_Object process, flag; |
1112 | { | |
b7826503 | 1113 | CHECK_PROCESS (process); |
60f0fb11 | 1114 | XPROCESS (process)->inherit_coding_system_flag = !NILP (flag); |
52a1b894 EZ |
1115 | return flag; |
1116 | } | |
1117 | ||
1118 | DEFUN ("process-inherit-coding-system-flag", | |
fdb82f93 PJ |
1119 | Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag, |
1120 | 1, 1, 0, | |
1121 | doc: /* Return the value of inherit-coding-system flag for PROCESS. | |
1122 | If this flag is t, `buffer-file-coding-system' of the buffer | |
1123 | associated with PROCESS will inherit the coding system used to decode | |
1124 | the process output. */) | |
1125 | (process) | |
52a1b894 EZ |
1126 | register Lisp_Object process; |
1127 | { | |
b7826503 | 1128 | CHECK_PROCESS (process); |
60f0fb11 | 1129 | return XPROCESS (process)->inherit_coding_system_flag ? Qt : Qnil; |
52a1b894 EZ |
1130 | } |
1131 | ||
e690ca94 KS |
1132 | DEFUN ("set-process-query-on-exit-flag", |
1133 | Fset_process_query_on_exit_flag, Sset_process_query_on_exit_flag, | |
1134 | 2, 2, 0, | |
1135 | doc: /* Specify if query is needed for PROCESS when Emacs is exited. | |
f3d9532b | 1136 | If the second argument FLAG is non-nil, Emacs will query the user before |
10be7e0d | 1137 | exiting or killing a buffer if PROCESS is running. */) |
e690ca94 KS |
1138 | (process, flag) |
1139 | register Lisp_Object process, flag; | |
d0d6b7c5 | 1140 | { |
b7826503 | 1141 | CHECK_PROCESS (process); |
60f0fb11 | 1142 | XPROCESS (process)->kill_without_query = NILP (flag); |
e690ca94 | 1143 | return flag; |
d0d6b7c5 | 1144 | } |
312c9964 | 1145 | |
e690ca94 KS |
1146 | DEFUN ("process-query-on-exit-flag", |
1147 | Fprocess_query_on_exit_flag, Sprocess_query_on_exit_flag, | |
fdb82f93 | 1148 | 1, 1, 0, |
f3d9532b | 1149 | doc: /* Return the current value of query-on-exit flag for PROCESS. */) |
fdb82f93 | 1150 | (process) |
de282a05 RS |
1151 | register Lisp_Object process; |
1152 | { | |
b7826503 | 1153 | CHECK_PROCESS (process); |
60f0fb11 | 1154 | return (XPROCESS (process)->kill_without_query ? Qnil : Qt); |
e690ca94 KS |
1155 | } |
1156 | ||
1157 | #ifdef DATAGRAM_SOCKETS | |
1158 | Lisp_Object Fprocess_datagram_address (); | |
1159 | #endif | |
1160 | ||
1161 | DEFUN ("process-contact", Fprocess_contact, Sprocess_contact, | |
1162 | 1, 2, 0, | |
1163 | doc: /* Return the contact info of PROCESS; t for a real child. | |
d888760c GM |
1164 | For a network or serial connection, the value depends on the optional |
1165 | KEY arg. If KEY is nil, value is a cons cell of the form (HOST | |
1166 | SERVICE) for a network connection or (PORT SPEED) for a serial | |
1167 | connection. If KEY is t, the complete contact information for the | |
1168 | connection is returned, else the specific value for the keyword KEY is | |
1169 | returned. See `make-network-process' or `make-serial-process' for a | |
1170 | list of keywords. */) | |
e690ca94 KS |
1171 | (process, key) |
1172 | register Lisp_Object process, key; | |
1173 | { | |
1174 | Lisp_Object contact; | |
1175 | ||
1176 | CHECK_PROCESS (process); | |
1177 | contact = XPROCESS (process)->childp; | |
1178 | ||
1179 | #ifdef DATAGRAM_SOCKETS | |
1180 | if (DATAGRAM_CONN_P (process) | |
1181 | && (EQ (key, Qt) || EQ (key, QCremote))) | |
177c0ea7 | 1182 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
1183 | Fprocess_datagram_address (process)); |
1184 | #endif | |
1185 | ||
d888760c | 1186 | if ((!NETCONN_P (process) && !SERIALCONN_P (process)) || EQ (key, Qt)) |
e690ca94 | 1187 | return contact; |
d888760c | 1188 | if (NILP (key) && NETCONN_P (process)) |
e690ca94 KS |
1189 | return Fcons (Fplist_get (contact, QChost), |
1190 | Fcons (Fplist_get (contact, QCservice), Qnil)); | |
d888760c GM |
1191 | if (NILP (key) && SERIALCONN_P (process)) |
1192 | return Fcons (Fplist_get (contact, QCport), | |
1193 | Fcons (Fplist_get (contact, QCspeed), Qnil)); | |
e690ca94 | 1194 | return Fplist_get (contact, key); |
de282a05 RS |
1195 | } |
1196 | ||
faa7db08 KS |
1197 | DEFUN ("process-plist", Fprocess_plist, Sprocess_plist, |
1198 | 1, 1, 0, | |
1199 | doc: /* Return the plist of PROCESS. */) | |
1200 | (process) | |
1201 | register Lisp_Object process; | |
365aee82 | 1202 | { |
ac4a7584 | 1203 | CHECK_PROCESS (process); |
faa7db08 | 1204 | return XPROCESS (process)->plist; |
ac4a7584 | 1205 | } |
365aee82 | 1206 | |
faa7db08 KS |
1207 | DEFUN ("set-process-plist", Fset_process_plist, Sset_process_plist, |
1208 | 2, 2, 0, | |
26a086c6 | 1209 | doc: /* Replace the plist of PROCESS with PLIST. Returns PLIST. */) |
faa7db08 KS |
1210 | (process, plist) |
1211 | register Lisp_Object process, plist; | |
ac4a7584 | 1212 | { |
365aee82 | 1213 | CHECK_PROCESS (process); |
faa7db08 | 1214 | CHECK_LIST (plist); |
365aee82 | 1215 | |
faa7db08 | 1216 | XPROCESS (process)->plist = plist; |
26a086c6 | 1217 | return plist; |
365aee82 KS |
1218 | } |
1219 | ||
312c9964 RS |
1220 | #if 0 /* Turned off because we don't currently record this info |
1221 | in the process. Perhaps add it. */ | |
1222 | DEFUN ("process-connection", Fprocess_connection, Sprocess_connection, 1, 1, 0, | |
fdb82f93 PJ |
1223 | doc: /* Return the connection type of PROCESS. |
1224 | The value is nil for a pipe, t or `pty' for a pty, or `stream' for | |
1225 | a socket connection. */) | |
1226 | (process) | |
312c9964 RS |
1227 | Lisp_Object process; |
1228 | { | |
1229 | return XPROCESS (process)->type; | |
1230 | } | |
1231 | #endif | |
2a7bb882 | 1232 | |
d888760c GM |
1233 | DEFUN ("process-type", Fprocess_type, Sprocess_type, 1, 1, 0, |
1234 | doc: /* Return the connection type of PROCESS. | |
1235 | The value is either the symbol `real', `network', or `serial'. | |
1236 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
1237 | nil, indicating the current buffer's process. */) | |
1238 | (process) | |
1239 | Lisp_Object process; | |
1240 | { | |
1241 | Lisp_Object proc; | |
1242 | proc = get_process (process); | |
1243 | return XPROCESS (proc)->type; | |
1244 | } | |
991234f0 KS |
1245 | |
1246 | #ifdef HAVE_SOCKETS | |
1247 | DEFUN ("format-network-address", Fformat_network_address, Sformat_network_address, | |
0dccee41 | 1248 | 1, 2, 0, |
991234f0 | 1249 | doc: /* Convert network ADDRESS from internal format to a string. |
e1652a86 KS |
1250 | A 4 or 5 element vector represents an IPv4 address (with port number). |
1251 | An 8 or 9 element vector represents an IPv6 address (with port number). | |
0dccee41 | 1252 | If optional second argument OMIT-PORT is non-nil, don't include a port |
e1652a86 KS |
1253 | number in the string, even when present in ADDRESS. |
1254 | Returns nil if format of ADDRESS is invalid. */) | |
0dccee41 KS |
1255 | (address, omit_port) |
1256 | Lisp_Object address, omit_port; | |
991234f0 | 1257 | { |
991234f0 KS |
1258 | if (NILP (address)) |
1259 | return Qnil; | |
1260 | ||
1261 | if (STRINGP (address)) /* AF_LOCAL */ | |
1262 | return address; | |
1263 | ||
e1652a86 | 1264 | if (VECTORP (address)) /* AF_INET or AF_INET6 */ |
991234f0 KS |
1265 | { |
1266 | register struct Lisp_Vector *p = XVECTOR (address); | |
ded83665 | 1267 | Lisp_Object args[10]; |
0dccee41 | 1268 | int nargs, i; |
991234f0 | 1269 | |
e1652a86 | 1270 | if (p->size == 4 || (p->size == 5 && !NILP (omit_port))) |
0dccee41 KS |
1271 | { |
1272 | args[0] = build_string ("%d.%d.%d.%d"); | |
1273 | nargs = 4; | |
1274 | } | |
1275 | else if (p->size == 5) | |
1276 | { | |
1277 | args[0] = build_string ("%d.%d.%d.%d:%d"); | |
1278 | nargs = 5; | |
1279 | } | |
e1652a86 KS |
1280 | else if (p->size == 8 || (p->size == 9 && !NILP (omit_port))) |
1281 | { | |
1282 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
1283 | nargs = 8; | |
1284 | } | |
1285 | else if (p->size == 9) | |
1286 | { | |
1287 | args[0] = build_string ("[%x:%x:%x:%x:%x:%x:%x:%x]:%d"); | |
1288 | nargs = 9; | |
1289 | } | |
0dccee41 | 1290 | else |
991234f0 KS |
1291 | return Qnil; |
1292 | ||
0dccee41 | 1293 | for (i = 0; i < nargs; i++) |
cbf23adb JB |
1294 | { |
1295 | EMACS_INT element = XINT (p->contents[i]); | |
1296 | ||
1297 | if (element < 0 || element > 65535) | |
1298 | return Qnil; | |
1299 | ||
1300 | if (nargs <= 5 /* IPv4 */ | |
1301 | && i < 4 /* host, not port */ | |
1302 | && element > 255) | |
1303 | return Qnil; | |
1304 | ||
1305 | args[i+1] = p->contents[i]; | |
1306 | } | |
1307 | ||
0dccee41 | 1308 | return Fformat (nargs+1, args); |
991234f0 KS |
1309 | } |
1310 | ||
1311 | if (CONSP (address)) | |
1312 | { | |
1313 | Lisp_Object args[2]; | |
1314 | args[0] = build_string ("<Family %d>"); | |
8d2ff840 | 1315 | args[1] = Fcar (address); |
991234f0 | 1316 | return Fformat (2, args); |
991234f0 KS |
1317 | } |
1318 | ||
1319 | return Qnil; | |
1320 | } | |
1321 | #endif | |
d0d6b7c5 | 1322 | \f |
ff6daed3 | 1323 | static Lisp_Object |
e690ca94 KS |
1324 | list_processes_1 (query_only) |
1325 | Lisp_Object query_only; | |
d0d6b7c5 JB |
1326 | { |
1327 | register Lisp_Object tail, tem; | |
1328 | Lisp_Object proc, minspace, tem1; | |
d0d6b7c5 | 1329 | register struct Lisp_Process *p; |
e690ca94 KS |
1330 | char tembuf[300]; |
1331 | int w_proc, w_buffer, w_tty; | |
1eed3bdc | 1332 | int exited = 0; |
e690ca94 KS |
1333 | Lisp_Object i_status, i_buffer, i_tty, i_command; |
1334 | ||
1335 | w_proc = 4; /* Proc */ | |
1336 | w_buffer = 6; /* Buffer */ | |
1337 | w_tty = 0; /* Omit if no ttys */ | |
1338 | ||
99784d63 | 1339 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
e690ca94 KS |
1340 | { |
1341 | int i; | |
1342 | ||
99784d63 | 1343 | proc = Fcdr (XCAR (tail)); |
e690ca94 | 1344 | p = XPROCESS (proc); |
d888760c | 1345 | if (NILP (p->type)) |
e690ca94 | 1346 | continue; |
60f0fb11 | 1347 | if (!NILP (query_only) && p->kill_without_query) |
e690ca94 KS |
1348 | continue; |
1349 | if (STRINGP (p->name) | |
d5db4077 | 1350 | && ( i = SCHARS (p->name), (i > w_proc))) |
e690ca94 KS |
1351 | w_proc = i; |
1352 | if (!NILP (p->buffer)) | |
1353 | { | |
e69c4cae SM |
1354 | if (NILP (XBUFFER (p->buffer)->name)) |
1355 | { | |
1356 | if (w_buffer < 8) | |
1357 | w_buffer = 8; /* (Killed) */ | |
1358 | } | |
d5db4077 | 1359 | else if ((i = SCHARS (XBUFFER (p->buffer)->name), (i > w_buffer))) |
e690ca94 KS |
1360 | w_buffer = i; |
1361 | } | |
1362 | if (STRINGP (p->tty_name) | |
d5db4077 | 1363 | && (i = SCHARS (p->tty_name), (i > w_tty))) |
e690ca94 KS |
1364 | w_tty = i; |
1365 | } | |
1366 | ||
1367 | XSETFASTINT (i_status, w_proc + 1); | |
1368 | XSETFASTINT (i_buffer, XFASTINT (i_status) + 9); | |
1369 | if (w_tty) | |
1370 | { | |
1371 | XSETFASTINT (i_tty, XFASTINT (i_buffer) + w_buffer + 1); | |
d3c0009d AS |
1372 | XSETFASTINT (i_command, XFASTINT (i_tty) + w_tty + 1); |
1373 | } | |
1374 | else | |
1375 | { | |
e690ca94 KS |
1376 | i_tty = Qnil; |
1377 | XSETFASTINT (i_command, XFASTINT (i_buffer) + w_buffer + 1); | |
1378 | } | |
d0d6b7c5 | 1379 | |
22719df2 | 1380 | XSETFASTINT (minspace, 1); |
d0d6b7c5 JB |
1381 | |
1382 | set_buffer_internal (XBUFFER (Vstandard_output)); | |
ec2258fa | 1383 | current_buffer->undo_list = Qt; |
d0d6b7c5 JB |
1384 | |
1385 | current_buffer->truncate_lines = Qt; | |
1386 | ||
e690ca94 KS |
1387 | write_string ("Proc", -1); |
1388 | Findent_to (i_status, minspace); write_string ("Status", -1); | |
1389 | Findent_to (i_buffer, minspace); write_string ("Buffer", -1); | |
1390 | if (!NILP (i_tty)) | |
1391 | { | |
1392 | Findent_to (i_tty, minspace); write_string ("Tty", -1); | |
1393 | } | |
1394 | Findent_to (i_command, minspace); write_string ("Command", -1); | |
1395 | write_string ("\n", -1); | |
1396 | ||
1397 | write_string ("----", -1); | |
1398 | Findent_to (i_status, minspace); write_string ("------", -1); | |
1399 | Findent_to (i_buffer, minspace); write_string ("------", -1); | |
1400 | if (!NILP (i_tty)) | |
1401 | { | |
1402 | Findent_to (i_tty, minspace); write_string ("---", -1); | |
1403 | } | |
1404 | Findent_to (i_command, minspace); write_string ("-------", -1); | |
1405 | write_string ("\n", -1); | |
d0d6b7c5 | 1406 | |
99784d63 | 1407 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 JB |
1408 | { |
1409 | Lisp_Object symbol; | |
1410 | ||
99784d63 | 1411 | proc = Fcdr (XCAR (tail)); |
d0d6b7c5 | 1412 | p = XPROCESS (proc); |
d888760c | 1413 | if (NILP (p->type)) |
d0d6b7c5 | 1414 | continue; |
60f0fb11 | 1415 | if (!NILP (query_only) && p->kill_without_query) |
e690ca94 | 1416 | continue; |
d0d6b7c5 JB |
1417 | |
1418 | Finsert (1, &p->name); | |
e690ca94 | 1419 | Findent_to (i_status, minspace); |
d0d6b7c5 | 1420 | |
6bfd98e7 | 1421 | if (p->raw_status_new) |
d0d6b7c5 JB |
1422 | update_status (p); |
1423 | symbol = p->status; | |
bcd69aea | 1424 | if (CONSP (p->status)) |
70949dac | 1425 | symbol = XCAR (p->status); |
d0d6b7c5 | 1426 | |
d0d6b7c5 JB |
1427 | if (EQ (symbol, Qsignal)) |
1428 | { | |
1429 | Lisp_Object tem; | |
1430 | tem = Fcar (Fcdr (p->status)); | |
7c2fb837 | 1431 | Fprinc (symbol, Qnil); |
d0d6b7c5 | 1432 | } |
d888760c | 1433 | else if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 1434 | { |
e690ca94 | 1435 | if (EQ (symbol, Qexit)) |
d0d6b7c5 | 1436 | write_string ("closed", -1); |
e690ca94 KS |
1437 | else if (EQ (p->command, Qt)) |
1438 | write_string ("stopped", -1); | |
1439 | else if (EQ (symbol, Qrun)) | |
1440 | write_string ("open", -1); | |
d0d6b7c5 JB |
1441 | else |
1442 | Fprinc (symbol, Qnil); | |
1443 | } | |
d888760c GM |
1444 | else if (SERIALCONN1_P (p)) |
1445 | { | |
1446 | write_string ("running", -1); | |
1447 | } | |
d0d6b7c5 JB |
1448 | else |
1449 | Fprinc (symbol, Qnil); | |
1450 | ||
1451 | if (EQ (symbol, Qexit)) | |
1452 | { | |
1453 | Lisp_Object tem; | |
1454 | tem = Fcar (Fcdr (p->status)); | |
1455 | if (XFASTINT (tem)) | |
1456 | { | |
3162bafa | 1457 | sprintf (tembuf, " %d", (int) XFASTINT (tem)); |
d0d6b7c5 JB |
1458 | write_string (tembuf, -1); |
1459 | } | |
1460 | } | |
1461 | ||
1eed3bdc KS |
1462 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit) || EQ (symbol, Qclosed)) |
1463 | exited++; | |
d0d6b7c5 | 1464 | |
e690ca94 | 1465 | Findent_to (i_buffer, minspace); |
d0d6b7c5 JB |
1466 | if (NILP (p->buffer)) |
1467 | insert_string ("(none)"); | |
1468 | else if (NILP (XBUFFER (p->buffer)->name)) | |
1469 | insert_string ("(Killed)"); | |
1470 | else | |
1471 | Finsert (1, &XBUFFER (p->buffer)->name); | |
1472 | ||
e690ca94 KS |
1473 | if (!NILP (i_tty)) |
1474 | { | |
1475 | Findent_to (i_tty, minspace); | |
1476 | if (STRINGP (p->tty_name)) | |
1477 | Finsert (1, &p->tty_name); | |
1478 | } | |
a9fde32e | 1479 | |
e690ca94 | 1480 | Findent_to (i_command, minspace); |
a9fde32e | 1481 | |
e690ca94 KS |
1482 | if (EQ (p->status, Qlisten)) |
1483 | { | |
1484 | Lisp_Object port = Fplist_get (p->childp, QCservice); | |
1485 | if (INTEGERP (port)) | |
1486 | port = Fnumber_to_string (port); | |
991234f0 | 1487 | if (NILP (port)) |
0dccee41 | 1488 | port = Fformat_network_address (Fplist_get (p->childp, QClocal), Qnil); |
e690ca94 | 1489 | sprintf (tembuf, "(network %s server on %s)\n", |
60f0fb11 | 1490 | (DATAGRAM_CHAN_P (p->infd) ? "datagram" : "stream"), |
991234f0 | 1491 | (STRINGP (port) ? (char *)SDATA (port) : "?")); |
e690ca94 KS |
1492 | insert_string (tembuf); |
1493 | } | |
1494 | else if (NETCONN1_P (p)) | |
63136da6 | 1495 | { |
e690ca94 KS |
1496 | /* For a local socket, there is no host name, |
1497 | so display service instead. */ | |
1498 | Lisp_Object host = Fplist_get (p->childp, QChost); | |
1499 | if (!STRINGP (host)) | |
1500 | { | |
1501 | host = Fplist_get (p->childp, QCservice); | |
1502 | if (INTEGERP (host)) | |
1503 | host = Fnumber_to_string (host); | |
1504 | } | |
991234f0 | 1505 | if (NILP (host)) |
0dccee41 | 1506 | host = Fformat_network_address (Fplist_get (p->childp, QCremote), Qnil); |
e690ca94 | 1507 | sprintf (tembuf, "(network %s connection to %s)\n", |
60f0fb11 | 1508 | (DATAGRAM_CHAN_P (p->infd) ? "datagram" : "stream"), |
991234f0 | 1509 | (STRINGP (host) ? (char *)SDATA (host) : "?")); |
d0d6b7c5 | 1510 | insert_string (tembuf); |
63136da6 | 1511 | } |
d888760c GM |
1512 | else if (SERIALCONN1_P (p)) |
1513 | { | |
1514 | Lisp_Object port = Fplist_get (p->childp, QCport); | |
1515 | Lisp_Object speed = Fplist_get (p->childp, QCspeed); | |
1516 | insert_string ("(serial port "); | |
1517 | if (STRINGP (port)) | |
1518 | insert_string (SDATA (port)); | |
1519 | else | |
1520 | insert_string ("?"); | |
1521 | if (INTEGERP (speed)) | |
1522 | { | |
1523 | sprintf (tembuf, " at %d b/s", XINT (speed)); | |
1524 | insert_string (tembuf); | |
1525 | } | |
1526 | insert_string (")\n"); | |
1527 | } | |
177c0ea7 | 1528 | else |
d0d6b7c5 JB |
1529 | { |
1530 | tem = p->command; | |
1531 | while (1) | |
1532 | { | |
1533 | tem1 = Fcar (tem); | |
850d0752 NR |
1534 | if (NILP (tem1)) |
1535 | break; | |
d0d6b7c5 JB |
1536 | Finsert (1, &tem1); |
1537 | tem = Fcdr (tem); | |
1538 | if (NILP (tem)) | |
1539 | break; | |
1540 | insert_string (" "); | |
1541 | } | |
1542 | insert_string ("\n"); | |
1543 | } | |
1544 | } | |
1eed3bdc KS |
1545 | if (exited) |
1546 | status_notify (NULL); | |
d0d6b7c5 JB |
1547 | return Qnil; |
1548 | } | |
1549 | ||
e690ca94 | 1550 | DEFUN ("list-processes", Flist_processes, Slist_processes, 0, 1, "P", |
fdb82f93 | 1551 | doc: /* Display a list of all processes. |
e690ca94 KS |
1552 | If optional argument QUERY-ONLY is non-nil, only processes with |
1553 | the query-on-exit flag set will be listed. | |
fdb82f93 PJ |
1554 | Any process listed as exited or signaled is actually eliminated |
1555 | after the listing is made. */) | |
e690ca94 KS |
1556 | (query_only) |
1557 | Lisp_Object query_only; | |
d0d6b7c5 JB |
1558 | { |
1559 | internal_with_output_to_temp_buffer ("*Process List*", | |
e690ca94 | 1560 | list_processes_1, query_only); |
d0d6b7c5 JB |
1561 | return Qnil; |
1562 | } | |
1563 | ||
1564 | DEFUN ("process-list", Fprocess_list, Sprocess_list, 0, 0, 0, | |
fdb82f93 PJ |
1565 | doc: /* Return a list of all processes. */) |
1566 | () | |
d0d6b7c5 JB |
1567 | { |
1568 | return Fmapcar (Qcdr, Vprocess_alist); | |
1569 | } | |
1570 | \f | |
b0310da4 JB |
1571 | /* Starting asynchronous inferior processes. */ |
1572 | ||
1573 | static Lisp_Object start_process_unwind (); | |
1574 | ||
d0d6b7c5 | 1575 | DEFUN ("start-process", Fstart_process, Sstart_process, 3, MANY, 0, |
fdb82f93 PJ |
1576 | doc: /* Start a program in a subprocess. Return the process object for it. |
1577 | NAME is name for process. It is modified if necessary to make it unique. | |
553acde5 | 1578 | BUFFER is the buffer (or buffer name) to associate with the process. |
4b6c5eee EZ |
1579 | |
1580 | Process output (both standard output and standard error streams) goes | |
1581 | at end of BUFFER, unless you specify an output stream or filter | |
1582 | function to handle the output. BUFFER may also be nil, meaning that | |
16fdeb17 RS |
1583 | this process is not associated with any buffer. |
1584 | ||
850d0752 NR |
1585 | PROGRAM is the program file name. It is searched for in PATH. If |
1586 | nil, just associate a pty with the buffer. Remaining arguments are | |
1587 | strings to give program as arguments. | |
320aebc9 | 1588 | |
4b6c5eee EZ |
1589 | If you want to separate standard output from standard error, invoke |
1590 | the command through a shell and redirect one of them using the shell | |
1591 | syntax. | |
320aebc9 | 1592 | |
3ecdf100 | 1593 | usage: (start-process NAME BUFFER PROGRAM &rest PROGRAM-ARGS) */) |
fdb82f93 | 1594 | (nargs, args) |
d0d6b7c5 JB |
1595 | int nargs; |
1596 | register Lisp_Object *args; | |
1597 | { | |
1e30af70 | 1598 | Lisp_Object buffer, name, program, proc, current_dir, tem; |
d0d6b7c5 | 1599 | register unsigned char **new_argv; |
d0d6b7c5 | 1600 | register int i; |
aed13378 | 1601 | int count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
1602 | |
1603 | buffer = args[1]; | |
1604 | if (!NILP (buffer)) | |
1605 | buffer = Fget_buffer_create (buffer); | |
1606 | ||
1e30af70 JB |
1607 | /* Make sure that the child will be able to chdir to the current |
1608 | buffer's current directory, or its unhandled equivalent. We | |
1609 | can't just have the child check for an error when it does the | |
1610 | chdir, since it's in a vfork. | |
1611 | ||
1612 | We have to GCPRO around this because Fexpand_file_name and | |
1613 | Funhandled_file_name_directory might call a file name handling | |
1614 | function. The argument list is protected by the caller, so all | |
1615 | we really have to worry about is buffer. */ | |
1616 | { | |
1617 | struct gcpro gcpro1, gcpro2; | |
1618 | ||
1619 | current_dir = current_buffer->directory; | |
1620 | ||
1621 | GCPRO2 (buffer, current_dir); | |
1622 | ||
ca319910 SM |
1623 | current_dir = Funhandled_file_name_directory (current_dir); |
1624 | if (NILP (current_dir)) | |
1625 | /* If the file name handler says that current_dir is unreachable, use | |
1626 | a sensible default. */ | |
1627 | current_dir = build_string ("~/"); | |
1628 | current_dir = expand_and_dir_to_file (current_dir, Qnil); | |
1e30af70 JB |
1629 | if (NILP (Ffile_accessible_directory_p (current_dir))) |
1630 | report_file_error ("Setting current directory", | |
1631 | Fcons (current_buffer->directory, Qnil)); | |
1632 | ||
1633 | UNGCPRO; | |
1634 | } | |
1635 | ||
d0d6b7c5 | 1636 | name = args[0]; |
b7826503 | 1637 | CHECK_STRING (name); |
d0d6b7c5 JB |
1638 | |
1639 | program = args[2]; | |
1640 | ||
850d0752 NR |
1641 | if (!NILP (program)) |
1642 | CHECK_STRING (program); | |
d0d6b7c5 | 1643 | |
d0d6b7c5 | 1644 | proc = make_process (name); |
b0310da4 JB |
1645 | /* If an error occurs and we can't start the process, we want to |
1646 | remove it from the process list. This means that each error | |
1647 | check in create_process doesn't need to call remove_process | |
1648 | itself; it's all taken care of here. */ | |
1649 | record_unwind_protect (start_process_unwind, proc); | |
d0d6b7c5 JB |
1650 | |
1651 | XPROCESS (proc)->childp = Qt; | |
faa7db08 | 1652 | XPROCESS (proc)->plist = Qnil; |
d888760c | 1653 | XPROCESS (proc)->type = Qreal; |
d0d6b7c5 JB |
1654 | XPROCESS (proc)->buffer = buffer; |
1655 | XPROCESS (proc)->sentinel = Qnil; | |
1656 | XPROCESS (proc)->filter = Qnil; | |
1657 | XPROCESS (proc)->command = Flist (nargs - 2, args + 2); | |
1658 | ||
6b61353c | 1659 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
1660 | XPROCESS (proc)->adaptive_read_buffering |
1661 | = (NILP (Vprocess_adaptive_read_buffering) ? 0 | |
1662 | : EQ (Vprocess_adaptive_read_buffering, Qt) ? 1 : 2); | |
6b61353c KH |
1663 | #endif |
1664 | ||
7af71e17 | 1665 | /* Make the process marker point into the process buffer (if any). */ |
f523e0c3 | 1666 | if (BUFFERP (buffer)) |
d8a2934e RS |
1667 | set_marker_both (XPROCESS (proc)->mark, buffer, |
1668 | BUF_ZV (XBUFFER (buffer)), | |
1669 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
7af71e17 | 1670 | |
67918941 | 1671 | { |
d5d4ae71 KH |
1672 | /* Decide coding systems for communicating with the process. Here |
1673 | we don't setup the structure coding_system nor pay attention to | |
1674 | unibyte mode. They are done in create_process. */ | |
1675 | ||
67918941 RS |
1676 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ |
1677 | Lisp_Object coding_systems = Qt; | |
1678 | Lisp_Object val, *args2; | |
a4a37e65 | 1679 | struct gcpro gcpro1, gcpro2; |
67918941 | 1680 | |
d5d4ae71 KH |
1681 | val = Vcoding_system_for_read; |
1682 | if (NILP (val)) | |
67918941 RS |
1683 | { |
1684 | args2 = (Lisp_Object *) alloca ((nargs + 1) * sizeof *args2); | |
1685 | args2[0] = Qstart_process; | |
1686 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1687 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1688 | if (!NILP (program)) |
1689 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1690 | UNGCPRO; |
1691 | if (CONSP (coding_systems)) | |
70949dac | 1692 | val = XCAR (coding_systems); |
67918941 | 1693 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1694 | val = XCAR (Vdefault_process_coding_system); |
67918941 RS |
1695 | } |
1696 | XPROCESS (proc)->decode_coding_system = val; | |
1697 | ||
d5d4ae71 KH |
1698 | val = Vcoding_system_for_write; |
1699 | if (NILP (val)) | |
67918941 RS |
1700 | { |
1701 | if (EQ (coding_systems, Qt)) | |
1702 | { | |
1703 | args2 = (Lisp_Object *) alloca ((nargs + 1) * sizeof args2); | |
1704 | args2[0] = Qstart_process; | |
1705 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1706 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1707 | if (!NILP (program)) |
1708 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1709 | UNGCPRO; |
1710 | } | |
1711 | if (CONSP (coding_systems)) | |
70949dac | 1712 | val = XCDR (coding_systems); |
67918941 | 1713 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1714 | val = XCDR (Vdefault_process_coding_system); |
67918941 RS |
1715 | } |
1716 | XPROCESS (proc)->encode_coding_system = val; | |
1717 | } | |
0fa1789e | 1718 | |
a4a37e65 | 1719 | |
850d0752 NR |
1720 | XPROCESS (proc)->decoding_buf = make_uninit_string (0); |
1721 | XPROCESS (proc)->decoding_carryover = 0; | |
1722 | XPROCESS (proc)->encoding_buf = make_uninit_string (0); | |
ed30cf85 | 1723 | |
850d0752 NR |
1724 | XPROCESS (proc)->inherit_coding_system_flag |
1725 | = !(NILP (buffer) || !inherit_process_coding_system); | |
77bf07e1 | 1726 | |
850d0752 NR |
1727 | if (!NILP (program)) |
1728 | { | |
1729 | /* If program file name is not absolute, search our path for it. | |
1730 | Put the name we will really use in TEM. */ | |
1731 | if (!IS_DIRECTORY_SEP (SREF (program, 0)) | |
1732 | && !(SCHARS (program) > 1 | |
1733 | && IS_DEVICE_SEP (SREF (program, 1)))) | |
1734 | { | |
1735 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1736 | ||
1737 | tem = Qnil; | |
1738 | GCPRO4 (name, program, buffer, current_dir); | |
1739 | openp (Vexec_path, program, Vexec_suffixes, &tem, make_number (X_OK)); | |
1740 | UNGCPRO; | |
1741 | if (NILP (tem)) | |
1742 | report_file_error ("Searching for program", Fcons (program, Qnil)); | |
1743 | tem = Fexpand_file_name (tem, Qnil); | |
1744 | } | |
1745 | else | |
1746 | { | |
1747 | if (!NILP (Ffile_directory_p (program))) | |
1748 | error ("Specified program for new process is a directory"); | |
1749 | tem = program; | |
1750 | } | |
ed30cf85 | 1751 | |
850d0752 NR |
1752 | /* If program file name starts with /: for quoting a magic name, |
1753 | discard that. */ | |
1754 | if (SBYTES (tem) > 2 && SREF (tem, 0) == '/' | |
1755 | && SREF (tem, 1) == ':') | |
1756 | tem = Fsubstring (tem, make_number (2), Qnil); | |
77bf07e1 | 1757 | |
77bf07e1 | 1758 | { |
850d0752 NR |
1759 | struct gcpro gcpro1; |
1760 | GCPRO1 (tem); | |
a4a37e65 | 1761 | |
850d0752 NR |
1762 | /* Encode the file name and put it in NEW_ARGV. |
1763 | That's where the child will use it to execute the program. */ | |
1764 | tem = Fcons (ENCODE_FILE (tem), Qnil); | |
77bf07e1 | 1765 | |
850d0752 NR |
1766 | /* Here we encode arguments by the coding system used for sending |
1767 | data to the process. We don't support using different coding | |
1768 | systems for encoding arguments and for encoding data sent to the | |
1769 | process. */ | |
77bf07e1 | 1770 | |
850d0752 NR |
1771 | for (i = 3; i < nargs; i++) |
1772 | { | |
1773 | tem = Fcons (args[i], tem); | |
1774 | CHECK_STRING (XCAR (tem)); | |
1775 | if (STRING_MULTIBYTE (XCAR (tem))) | |
1776 | XSETCAR (tem, | |
1777 | code_convert_string_norecord | |
1778 | (XCAR (tem), XPROCESS (proc)->encode_coding_system, 1)); | |
1779 | } | |
a4a37e65 | 1780 | |
850d0752 NR |
1781 | UNGCPRO; |
1782 | } | |
0fa1789e | 1783 | |
850d0752 NR |
1784 | /* Now that everything is encoded we can collect the strings into |
1785 | NEW_ARGV. */ | |
1786 | new_argv = (unsigned char **) alloca ((nargs - 1) * sizeof (char *)); | |
1787 | new_argv[nargs - 2] = 0; | |
52a1b894 | 1788 | |
850d0752 NR |
1789 | for (i = nargs - 3; i >= 0; i--) |
1790 | { | |
1791 | new_argv[i] = SDATA (XCAR (tem)); | |
1792 | tem = XCDR (tem); | |
1793 | } | |
1794 | ||
1795 | create_process (proc, (char **) new_argv, current_dir); | |
1796 | } | |
1797 | else | |
1798 | create_pty (proc); | |
d0d6b7c5 | 1799 | |
b0310da4 | 1800 | return unbind_to (count, proc); |
d0d6b7c5 JB |
1801 | } |
1802 | ||
b0310da4 | 1803 | /* This function is the unwind_protect form for Fstart_process. If |
8e6208c5 | 1804 | PROC doesn't have its pid set, then we know someone has signaled |
b0310da4 JB |
1805 | an error and the process wasn't started successfully, so we should |
1806 | remove it from the process list. */ | |
1807 | static Lisp_Object | |
1808 | start_process_unwind (proc) | |
1809 | Lisp_Object proc; | |
1810 | { | |
bcd69aea | 1811 | if (!PROCESSP (proc)) |
b0310da4 JB |
1812 | abort (); |
1813 | ||
1814 | /* Was PROC started successfully? */ | |
850d0752 | 1815 | if (XPROCESS (proc)->pid == -1) |
b0310da4 JB |
1816 | remove_process (proc); |
1817 | ||
1818 | return Qnil; | |
1819 | } | |
1820 | ||
ff6daed3 | 1821 | static void |
30904ab7 GM |
1822 | create_process_1 (timer) |
1823 | struct atimer *timer; | |
d0d6b7c5 | 1824 | { |
30904ab7 | 1825 | /* Nothing to do. */ |
d0d6b7c5 JB |
1826 | } |
1827 | ||
30904ab7 | 1828 | |
d0d6b7c5 JB |
1829 | #if 0 /* This doesn't work; see the note before sigchld_handler. */ |
1830 | #ifdef USG | |
1831 | #ifdef SIGCHLD | |
1832 | /* Mimic blocking of signals on system V, which doesn't really have it. */ | |
1833 | ||
1834 | /* Nonzero means we got a SIGCHLD when it was supposed to be blocked. */ | |
1835 | int sigchld_deferred; | |
1836 | ||
1837 | SIGTYPE | |
1838 | create_process_sigchld () | |
1839 | { | |
1840 | signal (SIGCHLD, create_process_sigchld); | |
1841 | ||
1842 | sigchld_deferred = 1; | |
1843 | } | |
1844 | #endif | |
1845 | #endif | |
1846 | #endif | |
1847 | ||
6b53bb85 | 1848 | void |
1e30af70 | 1849 | create_process (process, new_argv, current_dir) |
d0d6b7c5 JB |
1850 | Lisp_Object process; |
1851 | char **new_argv; | |
1e30af70 | 1852 | Lisp_Object current_dir; |
d0d6b7c5 | 1853 | { |
29ed4d51 CY |
1854 | int inchannel, outchannel; |
1855 | pid_t pid; | |
d0d6b7c5 | 1856 | int sv[2]; |
2c4df143 YM |
1857 | #if !defined (WINDOWSNT) && defined (FD_CLOEXEC) |
1858 | int wait_child_setup[2]; | |
1859 | #endif | |
0dc70c33 KH |
1860 | #ifdef POSIX_SIGNALS |
1861 | sigset_t procmask; | |
1862 | sigset_t blocked; | |
1863 | struct sigaction sigint_action; | |
1864 | struct sigaction sigquit_action; | |
1865 | #ifdef AIX | |
1866 | struct sigaction sighup_action; | |
1867 | #endif | |
1868 | #else /* !POSIX_SIGNALS */ | |
41d03b9a | 1869 | #if 0 |
d0d6b7c5 JB |
1870 | #ifdef SIGCHLD |
1871 | SIGTYPE (*sigchld)(); | |
1872 | #endif | |
41d03b9a | 1873 | #endif /* 0 */ |
0dc70c33 | 1874 | #endif /* !POSIX_SIGNALS */ |
ecd1f654 KH |
1875 | /* Use volatile to protect variables from being clobbered by longjmp. */ |
1876 | volatile int forkin, forkout; | |
1877 | volatile int pty_flag = 0; | |
3ec68006 | 1878 | #ifndef USE_CRT_DLL |
d0d6b7c5 | 1879 | extern char **environ; |
3ec68006 | 1880 | #endif |
d0d6b7c5 | 1881 | |
d0d6b7c5 JB |
1882 | inchannel = outchannel = -1; |
1883 | ||
1884 | #ifdef HAVE_PTYS | |
fe45da4e | 1885 | if (!NILP (Vprocess_connection_type)) |
d0d6b7c5 JB |
1886 | outchannel = inchannel = allocate_pty (); |
1887 | ||
d0d6b7c5 JB |
1888 | if (inchannel >= 0) |
1889 | { | |
2af70a0c RS |
1890 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) |
1891 | /* On most USG systems it does not work to open the pty's tty here, | |
1892 | then close it and reopen it in the child. */ | |
d0d6b7c5 JB |
1893 | #ifdef O_NOCTTY |
1894 | /* Don't let this terminal become our controlling terminal | |
1895 | (in case we don't have one). */ | |
68c45bf0 | 1896 | forkout = forkin = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); |
d0d6b7c5 | 1897 | #else |
68c45bf0 | 1898 | forkout = forkin = emacs_open (pty_name, O_RDWR, 0); |
d0d6b7c5 JB |
1899 | #endif |
1900 | if (forkin < 0) | |
1901 | report_file_error ("Opening pty", Qnil); | |
1902 | #else | |
1903 | forkin = forkout = -1; | |
2af70a0c | 1904 | #endif /* not USG, or USG_SUBTTY_WORKS */ |
d0d6b7c5 JB |
1905 | pty_flag = 1; |
1906 | } | |
1907 | else | |
1908 | #endif /* HAVE_PTYS */ | |
d0d6b7c5 | 1909 | { |
fc14013c KH |
1910 | int tem; |
1911 | tem = pipe (sv); | |
1912 | if (tem < 0) | |
1913 | report_file_error ("Creating pipe", Qnil); | |
d0d6b7c5 JB |
1914 | inchannel = sv[0]; |
1915 | forkout = sv[1]; | |
fc14013c KH |
1916 | tem = pipe (sv); |
1917 | if (tem < 0) | |
1918 | { | |
68c45bf0 PE |
1919 | emacs_close (inchannel); |
1920 | emacs_close (forkout); | |
fc14013c KH |
1921 | report_file_error ("Creating pipe", Qnil); |
1922 | } | |
d0d6b7c5 JB |
1923 | outchannel = sv[1]; |
1924 | forkin = sv[0]; | |
1925 | } | |
d0d6b7c5 | 1926 | |
2c4df143 YM |
1927 | #if !defined (WINDOWSNT) && defined (FD_CLOEXEC) |
1928 | { | |
1929 | int tem; | |
1930 | ||
1931 | tem = pipe (wait_child_setup); | |
1932 | if (tem < 0) | |
1933 | report_file_error ("Creating pipe", Qnil); | |
1934 | tem = fcntl (wait_child_setup[1], F_GETFD, 0); | |
1935 | if (tem >= 0) | |
1936 | tem = fcntl (wait_child_setup[1], F_SETFD, tem | FD_CLOEXEC); | |
1937 | if (tem < 0) | |
1938 | { | |
1939 | emacs_close (wait_child_setup[0]); | |
1940 | emacs_close (wait_child_setup[1]); | |
1941 | report_file_error ("Setting file descriptor flags", Qnil); | |
1942 | } | |
1943 | } | |
1944 | #endif | |
1945 | ||
d0d6b7c5 JB |
1946 | #if 0 |
1947 | /* Replaced by close_process_descs */ | |
1948 | set_exclusive_use (inchannel); | |
1949 | set_exclusive_use (outchannel); | |
1950 | #endif | |
1951 | ||
d0d6b7c5 JB |
1952 | #ifdef O_NONBLOCK |
1953 | fcntl (inchannel, F_SETFL, O_NONBLOCK); | |
03832893 | 1954 | fcntl (outchannel, F_SETFL, O_NONBLOCK); |
d0d6b7c5 JB |
1955 | #else |
1956 | #ifdef O_NDELAY | |
1957 | fcntl (inchannel, F_SETFL, O_NDELAY); | |
03832893 | 1958 | fcntl (outchannel, F_SETFL, O_NDELAY); |
d0d6b7c5 JB |
1959 | #endif |
1960 | #endif | |
1961 | ||
1962 | /* Record this as an active process, with its channels. | |
1963 | As a result, child_setup will close Emacs's side of the pipes. */ | |
1964 | chan_process[inchannel] = process; | |
60f0fb11 SM |
1965 | XPROCESS (process)->infd = inchannel; |
1966 | XPROCESS (process)->outfd = outchannel; | |
16782258 JD |
1967 | |
1968 | /* Previously we recorded the tty descriptor used in the subprocess. | |
1969 | It was only used for getting the foreground tty process, so now | |
1970 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
1971 | more portable (see USG_SUBTTY_WORKS above). */ | |
1972 | ||
60f0fb11 | 1973 | XPROCESS (process)->pty_flag = pty_flag; |
d0d6b7c5 | 1974 | XPROCESS (process)->status = Qrun; |
03f04413 | 1975 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
1976 | |
1977 | /* Delay interrupts until we have a chance to store | |
1978 | the new fork's pid in its process structure */ | |
0dc70c33 KH |
1979 | #ifdef POSIX_SIGNALS |
1980 | sigemptyset (&blocked); | |
1981 | #ifdef SIGCHLD | |
1982 | sigaddset (&blocked, SIGCHLD); | |
1983 | #endif | |
351e611f | 1984 | #ifdef HAVE_WORKING_VFORK |
0dc70c33 KH |
1985 | /* On many hosts (e.g. Solaris 2.4), if a vforked child calls `signal', |
1986 | this sets the parent's signal handlers as well as the child's. | |
1987 | So delay all interrupts whose handlers the child might munge, | |
1988 | and record the current handlers so they can be restored later. */ | |
1989 | sigaddset (&blocked, SIGINT ); sigaction (SIGINT , 0, &sigint_action ); | |
1990 | sigaddset (&blocked, SIGQUIT); sigaction (SIGQUIT, 0, &sigquit_action); | |
1991 | #ifdef AIX | |
1992 | sigaddset (&blocked, SIGHUP ); sigaction (SIGHUP , 0, &sighup_action ); | |
1993 | #endif | |
351e611f | 1994 | #endif /* HAVE_WORKING_VFORK */ |
0dc70c33 KH |
1995 | sigprocmask (SIG_BLOCK, &blocked, &procmask); |
1996 | #else /* !POSIX_SIGNALS */ | |
d0d6b7c5 | 1997 | #ifdef SIGCHLD |
e39a993c | 1998 | #if defined (BSD_SYSTEM) || defined (HPUX) |
d0d6b7c5 JB |
1999 | sigsetmask (sigmask (SIGCHLD)); |
2000 | #else /* ordinary USG */ | |
2001 | #if 0 | |
2002 | sigchld_deferred = 0; | |
2003 | sigchld = signal (SIGCHLD, create_process_sigchld); | |
2004 | #endif | |
2005 | #endif /* ordinary USG */ | |
d0d6b7c5 | 2006 | #endif /* SIGCHLD */ |
0dc70c33 | 2007 | #endif /* !POSIX_SIGNALS */ |
d0d6b7c5 | 2008 | |
3081bf8d | 2009 | FD_SET (inchannel, &input_wait_mask); |
a69281ff | 2010 | FD_SET (inchannel, &non_keyboard_wait_mask); |
3081bf8d KH |
2011 | if (inchannel > max_process_desc) |
2012 | max_process_desc = inchannel; | |
2013 | ||
d0d6b7c5 JB |
2014 | /* Until we store the proper pid, enable sigchld_handler |
2015 | to recognize an unknown pid as standing for this process. | |
2016 | It is very important not to let this `marker' value stay | |
2017 | in the table after this function has returned; if it does | |
2018 | it might cause call-process to hang and subsequent asynchronous | |
2019 | processes to get their return values scrambled. */ | |
6bfd98e7 | 2020 | XPROCESS (process)->pid = -1; |
d0d6b7c5 | 2021 | |
ececcbec | 2022 | BLOCK_INPUT; |
177c0ea7 | 2023 | |
d0d6b7c5 JB |
2024 | { |
2025 | /* child_setup must clobber environ on systems with true vfork. | |
2026 | Protect it from permanent change. */ | |
2027 | char **save_environ = environ; | |
2028 | ||
14dc6093 | 2029 | current_dir = ENCODE_FILE (current_dir); |
a932f187 | 2030 | |
e98d950b | 2031 | #ifndef WINDOWSNT |
d0d6b7c5 JB |
2032 | pid = vfork (); |
2033 | if (pid == 0) | |
e98d950b | 2034 | #endif /* not WINDOWSNT */ |
d0d6b7c5 JB |
2035 | { |
2036 | int xforkin = forkin; | |
2037 | int xforkout = forkout; | |
2038 | ||
2039 | #if 0 /* This was probably a mistake--it duplicates code later on, | |
2040 | but fails to handle all the cases. */ | |
2041 | /* Make sure SIGCHLD is not blocked in the child. */ | |
2042 | sigsetmask (SIGEMPTYMASK); | |
2043 | #endif | |
2044 | ||
2045 | /* Make the pty be the controlling terminal of the process. */ | |
2046 | #ifdef HAVE_PTYS | |
2047 | /* First, disconnect its current controlling terminal. */ | |
2048 | #ifdef HAVE_SETSID | |
7ce48618 RS |
2049 | /* We tried doing setsid only if pty_flag, but it caused |
2050 | process_set_signal to fail on SGI when using a pipe. */ | |
2051 | setsid (); | |
ce4c9c90 | 2052 | /* Make the pty's terminal the controlling terminal. */ |
084fd64a | 2053 | if (pty_flag) |
39e9ebcd | 2054 | { |
39e9ebcd RS |
2055 | #ifdef TIOCSCTTY |
2056 | /* We ignore the return value | |
2057 | because faith@cs.unc.edu says that is necessary on Linux. */ | |
2058 | ioctl (xforkin, TIOCSCTTY, 0); | |
ce4c9c90 | 2059 | #endif |
39e9ebcd | 2060 | } |
d0d6b7c5 | 2061 | #else /* not HAVE_SETSID */ |
c14e53a4 | 2062 | #ifdef USG |
000ab717 | 2063 | /* It's very important to call setpgrp here and no time |
d0d6b7c5 JB |
2064 | afterwards. Otherwise, we lose our controlling tty which |
2065 | is set when we open the pty. */ | |
2066 | setpgrp (); | |
2067 | #endif /* USG */ | |
2068 | #endif /* not HAVE_SETSID */ | |
9bcf8ec6 KH |
2069 | #if defined (HAVE_TERMIOS) && defined (LDISC1) |
2070 | if (pty_flag && xforkin >= 0) | |
2071 | { | |
2072 | struct termios t; | |
2073 | tcgetattr (xforkin, &t); | |
2074 | t.c_lflag = LDISC1; | |
2075 | if (tcsetattr (xforkin, TCSANOW, &t) < 0) | |
68c45bf0 | 2076 | emacs_write (1, "create_process/tcsetattr LDISC1 failed\n", 39); |
9bcf8ec6 KH |
2077 | } |
2078 | #else | |
aafadd9f | 2079 | #if defined (NTTYDISC) && defined (TIOCSETD) |
ff773a4e | 2080 | if (pty_flag && xforkin >= 0) |
afc549fd RS |
2081 | { |
2082 | /* Use new line discipline. */ | |
2083 | int ldisc = NTTYDISC; | |
4458f555 | 2084 | ioctl (xforkin, TIOCSETD, &ldisc); |
afc549fd | 2085 | } |
000ab717 | 2086 | #endif |
9bcf8ec6 | 2087 | #endif |
177c0ea7 | 2088 | #ifdef TIOCNOTTY |
d0d6b7c5 JB |
2089 | /* In 4.3BSD, the TIOCSPGRP bug has been fixed, and now you |
2090 | can do TIOCSPGRP only to the process's controlling tty. */ | |
2091 | if (pty_flag) | |
2092 | { | |
177c0ea7 | 2093 | /* I wonder: would just ioctl (0, TIOCNOTTY, 0) work here? |
d0d6b7c5 | 2094 | I can't test it since I don't have 4.3. */ |
68c45bf0 | 2095 | int j = emacs_open ("/dev/tty", O_RDWR, 0); |
d0d6b7c5 | 2096 | ioctl (j, TIOCNOTTY, 0); |
68c45bf0 | 2097 | emacs_close (j); |
5a570e37 | 2098 | #ifndef USG |
d0d6b7c5 JB |
2099 | /* In order to get a controlling terminal on some versions |
2100 | of BSD, it is necessary to put the process in pgrp 0 | |
2101 | before it opens the terminal. */ | |
99c1aeca | 2102 | #ifdef HAVE_SETPGID |
3ea1d291 RS |
2103 | setpgid (0, 0); |
2104 | #else | |
d0d6b7c5 | 2105 | setpgrp (0, 0); |
3ea1d291 | 2106 | #endif |
d0d6b7c5 JB |
2107 | #endif |
2108 | } | |
2109 | #endif /* TIOCNOTTY */ | |
2110 | ||
e39a993c | 2111 | #if !defined (DONT_REOPEN_PTY) |
d0d6b7c5 | 2112 | /*** There is a suggestion that this ought to be a |
99153b9e RS |
2113 | conditional on TIOCSPGRP, |
2114 | or !(defined (HAVE_SETSID) && defined (TIOCSCTTY)). | |
2115 | Trying the latter gave the wrong results on Debian GNU/Linux 1.1; | |
2116 | that system does seem to need this code, even though | |
2117 | both HAVE_SETSID and TIOCSCTTY are defined. */ | |
d0d6b7c5 JB |
2118 | /* Now close the pty (if we had it open) and reopen it. |
2119 | This makes the pty the controlling terminal of the subprocess. */ | |
2120 | if (pty_flag) | |
2121 | { | |
99e3d726 | 2122 | |
68c45bf0 PE |
2123 | /* I wonder if emacs_close (emacs_open (pty_name, ...)) |
2124 | would work? */ | |
d0d6b7c5 | 2125 | if (xforkin >= 0) |
68c45bf0 PE |
2126 | emacs_close (xforkin); |
2127 | xforkout = xforkin = emacs_open (pty_name, O_RDWR, 0); | |
d0d6b7c5 | 2128 | |
4aa54ba8 RS |
2129 | if (xforkin < 0) |
2130 | { | |
68c45bf0 PE |
2131 | emacs_write (1, "Couldn't open the pty terminal ", 31); |
2132 | emacs_write (1, pty_name, strlen (pty_name)); | |
2133 | emacs_write (1, "\n", 1); | |
4aa54ba8 RS |
2134 | _exit (1); |
2135 | } | |
2136 | ||
d0d6b7c5 | 2137 | } |
e39a993c | 2138 | #endif /* not DONT_REOPEN_PTY */ |
e9bf058b | 2139 | |
d0d6b7c5 | 2140 | #ifdef SETUP_SLAVE_PTY |
13a72104 RS |
2141 | if (pty_flag) |
2142 | { | |
2143 | SETUP_SLAVE_PTY; | |
2144 | } | |
d0d6b7c5 JB |
2145 | #endif /* SETUP_SLAVE_PTY */ |
2146 | #ifdef AIX | |
2147 | /* On AIX, we've disabled SIGHUP above once we start a child on a pty. | |
2148 | Now reenable it in the child, so it will die when we want it to. */ | |
2149 | if (pty_flag) | |
2150 | signal (SIGHUP, SIG_DFL); | |
2151 | #endif | |
2152 | #endif /* HAVE_PTYS */ | |
2153 | ||
0dc70c33 KH |
2154 | signal (SIGINT, SIG_DFL); |
2155 | signal (SIGQUIT, SIG_DFL); | |
2156 | ||
2157 | /* Stop blocking signals in the child. */ | |
2158 | #ifdef POSIX_SIGNALS | |
2159 | sigprocmask (SIG_SETMASK, &procmask, 0); | |
2160 | #else /* !POSIX_SIGNALS */ | |
d0d6b7c5 | 2161 | #ifdef SIGCHLD |
e39a993c | 2162 | #if defined (BSD_SYSTEM) || defined (HPUX) |
d0d6b7c5 JB |
2163 | sigsetmask (SIGEMPTYMASK); |
2164 | #else /* ordinary USG */ | |
63528b78 | 2165 | #if 0 |
d0d6b7c5 | 2166 | signal (SIGCHLD, sigchld); |
63528b78 | 2167 | #endif |
d0d6b7c5 | 2168 | #endif /* ordinary USG */ |
d0d6b7c5 | 2169 | #endif /* SIGCHLD */ |
0dc70c33 | 2170 | #endif /* !POSIX_SIGNALS */ |
5e7e1da2 | 2171 | |
ab01d0a8 RS |
2172 | if (pty_flag) |
2173 | child_setup_tty (xforkout); | |
e98d950b RS |
2174 | #ifdef WINDOWSNT |
2175 | pid = child_setup (xforkin, xforkout, xforkout, | |
2176 | new_argv, 1, current_dir); | |
177c0ea7 | 2177 | #else /* not WINDOWSNT */ |
2c4df143 YM |
2178 | #ifdef FD_CLOEXEC |
2179 | emacs_close (wait_child_setup[0]); | |
2180 | #endif | |
d0d6b7c5 | 2181 | child_setup (xforkin, xforkout, xforkout, |
e065a56e | 2182 | new_argv, 1, current_dir); |
e98d950b | 2183 | #endif /* not WINDOWSNT */ |
d0d6b7c5 JB |
2184 | } |
2185 | environ = save_environ; | |
2186 | } | |
2187 | ||
ececcbec RS |
2188 | UNBLOCK_INPUT; |
2189 | ||
4a127b3b | 2190 | /* This runs in the Emacs process. */ |
d0d6b7c5 | 2191 | if (pid < 0) |
6311cf58 RS |
2192 | { |
2193 | if (forkin >= 0) | |
68c45bf0 | 2194 | emacs_close (forkin); |
6311cf58 | 2195 | if (forkin != forkout && forkout >= 0) |
68c45bf0 | 2196 | emacs_close (forkout); |
6311cf58 | 2197 | } |
4a127b3b KH |
2198 | else |
2199 | { | |
2200 | /* vfork succeeded. */ | |
6bfd98e7 | 2201 | XPROCESS (process)->pid = pid; |
d0d6b7c5 | 2202 | |
e98d950b | 2203 | #ifdef WINDOWSNT |
4a127b3b | 2204 | register_child (pid, inchannel); |
e98d950b RS |
2205 | #endif /* WINDOWSNT */ |
2206 | ||
4a127b3b KH |
2207 | /* If the subfork execv fails, and it exits, |
2208 | this close hangs. I don't know why. | |
2209 | So have an interrupt jar it loose. */ | |
30904ab7 GM |
2210 | { |
2211 | struct atimer *timer; | |
2212 | EMACS_TIME offset; | |
177c0ea7 | 2213 | |
30904ab7 GM |
2214 | stop_polling (); |
2215 | EMACS_SET_SECS_USECS (offset, 1, 0); | |
2216 | timer = start_atimer (ATIMER_RELATIVE, offset, create_process_1, 0); | |
177c0ea7 | 2217 | |
30904ab7 GM |
2218 | if (forkin >= 0) |
2219 | emacs_close (forkin); | |
2220 | ||
2221 | cancel_atimer (timer); | |
2222 | start_polling (); | |
2223 | } | |
177c0ea7 | 2224 | |
4a127b3b | 2225 | if (forkin != forkout && forkout >= 0) |
68c45bf0 | 2226 | emacs_close (forkout); |
d0d6b7c5 | 2227 | |
875e6b94 | 2228 | #ifdef HAVE_PTYS |
4a127b3b KH |
2229 | if (pty_flag) |
2230 | XPROCESS (process)->tty_name = build_string (pty_name); | |
2231 | else | |
875e6b94 | 2232 | #endif |
4a127b3b | 2233 | XPROCESS (process)->tty_name = Qnil; |
2c4df143 YM |
2234 | |
2235 | #if !defined (WINDOWSNT) && defined (FD_CLOEXEC) | |
2236 | /* Wait for child_setup to complete in case that vfork is | |
2237 | actually defined as fork. The descriptor wait_child_setup[1] | |
2238 | of a pipe is closed at the child side either by close-on-exec | |
2239 | on successful execvp or the _exit call in child_setup. */ | |
2240 | { | |
2241 | char dummy; | |
2242 | ||
2243 | emacs_close (wait_child_setup[1]); | |
2244 | emacs_read (wait_child_setup[0], &dummy, 1); | |
2245 | emacs_close (wait_child_setup[0]); | |
2246 | } | |
2247 | #endif | |
4a127b3b | 2248 | } |
3b9a3dfa | 2249 | |
4a127b3b KH |
2250 | /* Restore the signal state whether vfork succeeded or not. |
2251 | (We will signal an error, below, if it failed.) */ | |
0dc70c33 | 2252 | #ifdef POSIX_SIGNALS |
351e611f | 2253 | #ifdef HAVE_WORKING_VFORK |
0dc70c33 KH |
2254 | /* Restore the parent's signal handlers. */ |
2255 | sigaction (SIGINT, &sigint_action, 0); | |
2256 | sigaction (SIGQUIT, &sigquit_action, 0); | |
2257 | #ifdef AIX | |
2258 | sigaction (SIGHUP, &sighup_action, 0); | |
2259 | #endif | |
351e611f | 2260 | #endif /* HAVE_WORKING_VFORK */ |
0dc70c33 KH |
2261 | /* Stop blocking signals in the parent. */ |
2262 | sigprocmask (SIG_SETMASK, &procmask, 0); | |
2263 | #else /* !POSIX_SIGNALS */ | |
d0d6b7c5 | 2264 | #ifdef SIGCHLD |
e39a993c | 2265 | #if defined (BSD_SYSTEM) || defined (HPUX) |
d0d6b7c5 JB |
2266 | sigsetmask (SIGEMPTYMASK); |
2267 | #else /* ordinary USG */ | |
2268 | #if 0 | |
2269 | signal (SIGCHLD, sigchld); | |
2270 | /* Now really handle any of these signals | |
2271 | that came in during this function. */ | |
2272 | if (sigchld_deferred) | |
2273 | kill (getpid (), SIGCHLD); | |
2274 | #endif | |
2275 | #endif /* ordinary USG */ | |
d0d6b7c5 | 2276 | #endif /* SIGCHLD */ |
0dc70c33 | 2277 | #endif /* !POSIX_SIGNALS */ |
4a127b3b KH |
2278 | |
2279 | /* Now generate the error if vfork failed. */ | |
2280 | if (pid < 0) | |
2281 | report_file_error ("Doing vfork", Qnil); | |
d0d6b7c5 | 2282 | } |
d0d6b7c5 | 2283 | |
850d0752 NR |
2284 | void |
2285 | create_pty (process) | |
2286 | Lisp_Object process; | |
2287 | { | |
2288 | int inchannel, outchannel; | |
2289 | ||
2290 | /* Use volatile to protect variables from being clobbered by longjmp. */ | |
2291 | volatile int forkin, forkout; | |
2292 | volatile int pty_flag = 0; | |
2293 | ||
2294 | inchannel = outchannel = -1; | |
2295 | ||
2296 | #ifdef HAVE_PTYS | |
2297 | if (!NILP (Vprocess_connection_type)) | |
2298 | outchannel = inchannel = allocate_pty (); | |
2299 | ||
2300 | if (inchannel >= 0) | |
2301 | { | |
2302 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) | |
2303 | /* On most USG systems it does not work to open the pty's tty here, | |
2304 | then close it and reopen it in the child. */ | |
2305 | #ifdef O_NOCTTY | |
2306 | /* Don't let this terminal become our controlling terminal | |
2307 | (in case we don't have one). */ | |
2308 | forkout = forkin = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); | |
2309 | #else | |
2310 | forkout = forkin = emacs_open (pty_name, O_RDWR, 0); | |
2311 | #endif | |
2312 | if (forkin < 0) | |
2313 | report_file_error ("Opening pty", Qnil); | |
2314 | #if defined (RTU) || defined (UNIPLUS) || defined (DONT_REOPEN_PTY) | |
2315 | /* In the case that vfork is defined as fork, the parent process | |
2316 | (Emacs) may send some data before the child process completes | |
2317 | tty options setup. So we setup tty before forking. */ | |
2318 | child_setup_tty (forkout); | |
2319 | #endif /* RTU or UNIPLUS or DONT_REOPEN_PTY */ | |
2320 | #else | |
2321 | forkin = forkout = -1; | |
2322 | #endif /* not USG, or USG_SUBTTY_WORKS */ | |
2323 | pty_flag = 1; | |
2324 | } | |
2325 | #endif /* HAVE_PTYS */ | |
2326 | ||
2327 | #ifdef O_NONBLOCK | |
2328 | fcntl (inchannel, F_SETFL, O_NONBLOCK); | |
2329 | fcntl (outchannel, F_SETFL, O_NONBLOCK); | |
2330 | #else | |
2331 | #ifdef O_NDELAY | |
2332 | fcntl (inchannel, F_SETFL, O_NDELAY); | |
2333 | fcntl (outchannel, F_SETFL, O_NDELAY); | |
2334 | #endif | |
2335 | #endif | |
2336 | ||
2337 | /* Record this as an active process, with its channels. | |
2338 | As a result, child_setup will close Emacs's side of the pipes. */ | |
2339 | chan_process[inchannel] = process; | |
2340 | XPROCESS (process)->infd = inchannel; | |
2341 | XPROCESS (process)->outfd = outchannel; | |
2342 | ||
2343 | /* Previously we recorded the tty descriptor used in the subprocess. | |
2344 | It was only used for getting the foreground tty process, so now | |
2345 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
2346 | more portable (see USG_SUBTTY_WORKS above). */ | |
2347 | ||
2348 | XPROCESS (process)->pty_flag = pty_flag; | |
2349 | XPROCESS (process)->status = Qrun; | |
2350 | setup_process_coding_systems (process); | |
2351 | ||
2352 | FD_SET (inchannel, &input_wait_mask); | |
2353 | FD_SET (inchannel, &non_keyboard_wait_mask); | |
2354 | if (inchannel > max_process_desc) | |
2355 | max_process_desc = inchannel; | |
2356 | ||
2357 | XPROCESS (process)->pid = -2; | |
2358 | XPROCESS (process)->tty_name = build_string (pty_name); | |
2359 | } | |
2360 | ||
e690ca94 | 2361 | \f |
d0d6b7c5 JB |
2362 | #ifdef HAVE_SOCKETS |
2363 | ||
e690ca94 KS |
2364 | /* Convert an internal struct sockaddr to a lisp object (vector or string). |
2365 | The address family of sa is not included in the result. */ | |
2366 | ||
2367 | static Lisp_Object | |
2368 | conv_sockaddr_to_lisp (sa, len) | |
2369 | struct sockaddr *sa; | |
2370 | int len; | |
2371 | { | |
2372 | Lisp_Object address; | |
2373 | int i; | |
2374 | unsigned char *cp; | |
2375 | register struct Lisp_Vector *p; | |
2376 | ||
63136da6 AS |
2377 | /* Workaround for a bug in getsockname on BSD: Names bound to |
2378 | sockets in the UNIX domain are inaccessible; getsockname returns | |
2379 | a zero length name. */ | |
2380 | if (len < OFFSETOF (struct sockaddr, sa_family) + sizeof (sa->sa_family)) | |
fff4e459 | 2381 | return empty_unibyte_string; |
63136da6 | 2382 | |
e690ca94 KS |
2383 | switch (sa->sa_family) |
2384 | { | |
2385 | case AF_INET: | |
2386 | { | |
2387 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
2388 | len = sizeof (sin->sin_addr) + 1; | |
2389 | address = Fmake_vector (make_number (len), Qnil); | |
2390 | p = XVECTOR (address); | |
2391 | p->contents[--len] = make_number (ntohs (sin->sin_port)); | |
63136da6 | 2392 | cp = (unsigned char *) &sin->sin_addr; |
e690ca94 KS |
2393 | break; |
2394 | } | |
e1652a86 KS |
2395 | #ifdef AF_INET6 |
2396 | case AF_INET6: | |
2397 | { | |
2398 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
63136da6 | 2399 | uint16_t *ip6 = (uint16_t *) &sin6->sin6_addr; |
e1652a86 KS |
2400 | len = sizeof (sin6->sin6_addr)/2 + 1; |
2401 | address = Fmake_vector (make_number (len), Qnil); | |
2402 | p = XVECTOR (address); | |
2403 | p->contents[--len] = make_number (ntohs (sin6->sin6_port)); | |
2404 | for (i = 0; i < len; i++) | |
2405 | p->contents[i] = make_number (ntohs (ip6[i])); | |
2406 | return address; | |
2407 | } | |
2408 | #endif | |
e690ca94 KS |
2409 | #ifdef HAVE_LOCAL_SOCKETS |
2410 | case AF_LOCAL: | |
2411 | { | |
fb23673a EZ |
2412 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
2413 | for (i = 0; i < sizeof (sockun->sun_path); i++) | |
2414 | if (sockun->sun_path[i] == 0) | |
e690ca94 | 2415 | break; |
fb23673a | 2416 | return make_unibyte_string (sockun->sun_path, i); |
e690ca94 KS |
2417 | } |
2418 | #endif | |
2419 | default: | |
63136da6 | 2420 | len -= OFFSETOF (struct sockaddr, sa_family) + sizeof (sa->sa_family); |
e690ca94 KS |
2421 | address = Fcons (make_number (sa->sa_family), |
2422 | Fmake_vector (make_number (len), Qnil)); | |
2423 | p = XVECTOR (XCDR (address)); | |
63136da6 | 2424 | cp = (unsigned char *) &sa->sa_family + sizeof (sa->sa_family); |
e690ca94 KS |
2425 | break; |
2426 | } | |
2427 | ||
2428 | i = 0; | |
2429 | while (i < len) | |
2430 | p->contents[i++] = make_number (*cp++); | |
2431 | ||
2432 | return address; | |
2433 | } | |
2434 | ||
2435 | ||
2436 | /* Get family and required size for sockaddr structure to hold ADDRESS. */ | |
2437 | ||
2438 | static int | |
2439 | get_lisp_to_sockaddr_size (address, familyp) | |
2440 | Lisp_Object address; | |
2441 | int *familyp; | |
2442 | { | |
2443 | register struct Lisp_Vector *p; | |
2444 | ||
2445 | if (VECTORP (address)) | |
2446 | { | |
2447 | p = XVECTOR (address); | |
2448 | if (p->size == 5) | |
2449 | { | |
2450 | *familyp = AF_INET; | |
2451 | return sizeof (struct sockaddr_in); | |
2452 | } | |
e1652a86 KS |
2453 | #ifdef AF_INET6 |
2454 | else if (p->size == 9) | |
2455 | { | |
2456 | *familyp = AF_INET6; | |
2457 | return sizeof (struct sockaddr_in6); | |
2458 | } | |
2459 | #endif | |
e690ca94 KS |
2460 | } |
2461 | #ifdef HAVE_LOCAL_SOCKETS | |
2462 | else if (STRINGP (address)) | |
2463 | { | |
2464 | *familyp = AF_LOCAL; | |
2465 | return sizeof (struct sockaddr_un); | |
2466 | } | |
2467 | #endif | |
2468 | else if (CONSP (address) && INTEGERP (XCAR (address)) && VECTORP (XCDR (address))) | |
2469 | { | |
2470 | struct sockaddr *sa; | |
2471 | *familyp = XINT (XCAR (address)); | |
2472 | p = XVECTOR (XCDR (address)); | |
2473 | return p->size + sizeof (sa->sa_family); | |
2474 | } | |
2475 | return 0; | |
2476 | } | |
2477 | ||
2478 | /* Convert an address object (vector or string) to an internal sockaddr. | |
9d1a8e5d RS |
2479 | |
2480 | The address format has been basically validated by | |
2481 | get_lisp_to_sockaddr_size, but this does not mean FAMILY is valid; | |
2482 | it could have come from user data. So if FAMILY is not valid, | |
2483 | we return after zeroing *SA. */ | |
e690ca94 KS |
2484 | |
2485 | static void | |
2486 | conv_lisp_to_sockaddr (family, address, sa, len) | |
2487 | int family; | |
2488 | Lisp_Object address; | |
2489 | struct sockaddr *sa; | |
2490 | int len; | |
2491 | { | |
2492 | register struct Lisp_Vector *p; | |
34967d0f | 2493 | register unsigned char *cp = NULL; |
e690ca94 KS |
2494 | register int i; |
2495 | ||
2496 | bzero (sa, len); | |
e690ca94 KS |
2497 | |
2498 | if (VECTORP (address)) | |
2499 | { | |
2500 | p = XVECTOR (address); | |
2501 | if (family == AF_INET) | |
2502 | { | |
2503 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
2504 | len = sizeof (sin->sin_addr) + 1; | |
2505 | i = XINT (p->contents[--len]); | |
2506 | sin->sin_port = htons (i); | |
2507 | cp = (unsigned char *)&sin->sin_addr; | |
9d1a8e5d | 2508 | sa->sa_family = family; |
e690ca94 | 2509 | } |
e1652a86 KS |
2510 | #ifdef AF_INET6 |
2511 | else if (family == AF_INET6) | |
2512 | { | |
2513 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
2514 | uint16_t *ip6 = (uint16_t *)&sin6->sin6_addr; | |
2515 | len = sizeof (sin6->sin6_addr) + 1; | |
2516 | i = XINT (p->contents[--len]); | |
2517 | sin6->sin6_port = htons (i); | |
2518 | for (i = 0; i < len; i++) | |
2519 | if (INTEGERP (p->contents[i])) | |
2520 | { | |
2521 | int j = XFASTINT (p->contents[i]) & 0xffff; | |
2522 | ip6[i] = ntohs (j); | |
2523 | } | |
9d1a8e5d | 2524 | sa->sa_family = family; |
e1652a86 KS |
2525 | } |
2526 | #endif | |
6bf890d7 | 2527 | return; |
e690ca94 KS |
2528 | } |
2529 | else if (STRINGP (address)) | |
2530 | { | |
2531 | #ifdef HAVE_LOCAL_SOCKETS | |
2532 | if (family == AF_LOCAL) | |
2533 | { | |
fb23673a | 2534 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
d5db4077 | 2535 | cp = SDATA (address); |
fb23673a EZ |
2536 | for (i = 0; i < sizeof (sockun->sun_path) && *cp; i++) |
2537 | sockun->sun_path[i] = *cp++; | |
9d1a8e5d | 2538 | sa->sa_family = family; |
e690ca94 KS |
2539 | } |
2540 | #endif | |
2541 | return; | |
2542 | } | |
2543 | else | |
2544 | { | |
2545 | p = XVECTOR (XCDR (address)); | |
2546 | cp = (unsigned char *)sa + sizeof (sa->sa_family); | |
2547 | } | |
2548 | ||
2549 | for (i = 0; i < len; i++) | |
2550 | if (INTEGERP (p->contents[i])) | |
2551 | *cp++ = XFASTINT (p->contents[i]) & 0xff; | |
2552 | } | |
2553 | ||
2554 | #ifdef DATAGRAM_SOCKETS | |
2555 | DEFUN ("process-datagram-address", Fprocess_datagram_address, Sprocess_datagram_address, | |
2556 | 1, 1, 0, | |
2557 | doc: /* Get the current datagram address associated with PROCESS. */) | |
2558 | (process) | |
2559 | Lisp_Object process; | |
2560 | { | |
2561 | int channel; | |
2562 | ||
2563 | CHECK_PROCESS (process); | |
2564 | ||
2565 | if (!DATAGRAM_CONN_P (process)) | |
2566 | return Qnil; | |
2567 | ||
60f0fb11 | 2568 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2569 | return conv_sockaddr_to_lisp (datagram_address[channel].sa, |
2570 | datagram_address[channel].len); | |
2571 | } | |
2572 | ||
2573 | DEFUN ("set-process-datagram-address", Fset_process_datagram_address, Sset_process_datagram_address, | |
2574 | 2, 2, 0, | |
2575 | doc: /* Set the datagram address for PROCESS to ADDRESS. | |
2576 | Returns nil upon error setting address, ADDRESS otherwise. */) | |
2577 | (process, address) | |
2578 | Lisp_Object process, address; | |
2579 | { | |
2580 | int channel; | |
2581 | int family, len; | |
2582 | ||
2583 | CHECK_PROCESS (process); | |
2584 | ||
2585 | if (!DATAGRAM_CONN_P (process)) | |
2586 | return Qnil; | |
2587 | ||
60f0fb11 | 2588 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2589 | |
2590 | len = get_lisp_to_sockaddr_size (address, &family); | |
2591 | if (datagram_address[channel].len != len) | |
2592 | return Qnil; | |
2593 | conv_lisp_to_sockaddr (family, address, datagram_address[channel].sa, len); | |
2594 | return address; | |
2595 | } | |
2596 | #endif | |
2597 | \f | |
2598 | ||
2599 | static struct socket_options { | |
2600 | /* The name of this option. Should be lowercase version of option | |
177c0ea7 | 2601 | name without SO_ prefix. */ |
e690ca94 | 2602 | char *name; |
e690ca94 KS |
2603 | /* Option level SOL_... */ |
2604 | int optlevel; | |
2605 | /* Option number SO_... */ | |
2606 | int optnum; | |
6b61353c KH |
2607 | enum { SOPT_UNKNOWN, SOPT_BOOL, SOPT_INT, SOPT_IFNAME, SOPT_LINGER } opttype; |
2608 | enum { OPIX_NONE=0, OPIX_MISC=1, OPIX_REUSEADDR=2 } optbit; | |
e690ca94 KS |
2609 | } socket_options[] = |
2610 | { | |
2611 | #ifdef SO_BINDTODEVICE | |
6b61353c | 2612 | { ":bindtodevice", SOL_SOCKET, SO_BINDTODEVICE, SOPT_IFNAME, OPIX_MISC }, |
e690ca94 KS |
2613 | #endif |
2614 | #ifdef SO_BROADCAST | |
6b61353c | 2615 | { ":broadcast", SOL_SOCKET, SO_BROADCAST, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2616 | #endif |
2617 | #ifdef SO_DONTROUTE | |
6b61353c | 2618 | { ":dontroute", SOL_SOCKET, SO_DONTROUTE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2619 | #endif |
2620 | #ifdef SO_KEEPALIVE | |
6b61353c | 2621 | { ":keepalive", SOL_SOCKET, SO_KEEPALIVE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2622 | #endif |
2623 | #ifdef SO_LINGER | |
6b61353c | 2624 | { ":linger", SOL_SOCKET, SO_LINGER, SOPT_LINGER, OPIX_MISC }, |
e690ca94 KS |
2625 | #endif |
2626 | #ifdef SO_OOBINLINE | |
6b61353c | 2627 | { ":oobinline", SOL_SOCKET, SO_OOBINLINE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2628 | #endif |
2629 | #ifdef SO_PRIORITY | |
6b61353c | 2630 | { ":priority", SOL_SOCKET, SO_PRIORITY, SOPT_INT, OPIX_MISC }, |
e690ca94 KS |
2631 | #endif |
2632 | #ifdef SO_REUSEADDR | |
6b61353c | 2633 | { ":reuseaddr", SOL_SOCKET, SO_REUSEADDR, SOPT_BOOL, OPIX_REUSEADDR }, |
e690ca94 | 2634 | #endif |
6b61353c | 2635 | { 0, 0, 0, SOPT_UNKNOWN, OPIX_NONE } |
e690ca94 KS |
2636 | }; |
2637 | ||
6b61353c | 2638 | /* Set option OPT to value VAL on socket S. |
e690ca94 | 2639 | |
6b61353c KH |
2640 | Returns (1<<socket_options[OPT].optbit) if option is known, 0 otherwise. |
2641 | Signals an error if setting a known option fails. | |
2642 | */ | |
e690ca94 KS |
2643 | |
2644 | static int | |
6b61353c | 2645 | set_socket_option (s, opt, val) |
e690ca94 | 2646 | int s; |
6b61353c | 2647 | Lisp_Object opt, val; |
e690ca94 | 2648 | { |
6b61353c KH |
2649 | char *name; |
2650 | struct socket_options *sopt; | |
2651 | int ret = 0; | |
e690ca94 | 2652 | |
6b61353c | 2653 | CHECK_SYMBOL (opt); |
e690ca94 | 2654 | |
6b61353c KH |
2655 | name = (char *) SDATA (SYMBOL_NAME (opt)); |
2656 | for (sopt = socket_options; sopt->name; sopt++) | |
2657 | if (strcmp (name, sopt->name) == 0) | |
2658 | break; | |
e690ca94 | 2659 | |
6b61353c KH |
2660 | switch (sopt->opttype) |
2661 | { | |
2662 | case SOPT_BOOL: | |
2663 | { | |
2664 | int optval; | |
2665 | optval = NILP (val) ? 0 : 1; | |
2666 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2667 | &optval, sizeof (optval)); | |
2668 | break; | |
2669 | } | |
e690ca94 | 2670 | |
6b61353c KH |
2671 | case SOPT_INT: |
2672 | { | |
2673 | int optval; | |
2674 | if (INTEGERP (val)) | |
2675 | optval = XINT (val); | |
2676 | else | |
2677 | error ("Bad option value for %s", name); | |
2678 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2679 | &optval, sizeof (optval)); | |
2680 | break; | |
2681 | } | |
e690ca94 | 2682 | |
6b61353c KH |
2683 | #ifdef SO_BINDTODEVICE |
2684 | case SOPT_IFNAME: | |
2685 | { | |
2686 | char devname[IFNAMSIZ+1]; | |
e690ca94 | 2687 | |
6b61353c KH |
2688 | /* This is broken, at least in the Linux 2.4 kernel. |
2689 | To unbind, the arg must be a zero integer, not the empty string. | |
2690 | This should work on all systems. KFS. 2003-09-23. */ | |
2691 | bzero (devname, sizeof devname); | |
2692 | if (STRINGP (val)) | |
e690ca94 | 2693 | { |
6b61353c KH |
2694 | char *arg = (char *) SDATA (val); |
2695 | int len = min (strlen (arg), IFNAMSIZ); | |
2696 | bcopy (arg, devname, len); | |
e690ca94 | 2697 | } |
6b61353c KH |
2698 | else if (!NILP (val)) |
2699 | error ("Bad option value for %s", name); | |
2700 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2701 | devname, IFNAMSIZ); | |
2702 | break; | |
2703 | } | |
2704 | #endif | |
e690ca94 | 2705 | |
177c0ea7 | 2706 | #ifdef SO_LINGER |
6b61353c KH |
2707 | case SOPT_LINGER: |
2708 | { | |
2709 | struct linger linger; | |
e690ca94 | 2710 | |
6b61353c KH |
2711 | linger.l_onoff = 1; |
2712 | linger.l_linger = 0; | |
2713 | if (INTEGERP (val)) | |
2714 | linger.l_linger = XINT (val); | |
2715 | else | |
2716 | linger.l_onoff = NILP (val) ? 0 : 1; | |
2717 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2718 | &linger, sizeof (linger)); | |
2719 | break; | |
2720 | } | |
e690ca94 | 2721 | #endif |
6b61353c KH |
2722 | |
2723 | default: | |
2724 | return 0; | |
e690ca94 | 2725 | } |
6b61353c KH |
2726 | |
2727 | if (ret < 0) | |
2728 | report_file_error ("Cannot set network option", | |
2729 | Fcons (opt, Fcons (val, Qnil))); | |
2730 | return (1 << sopt->optbit); | |
e690ca94 KS |
2731 | } |
2732 | ||
6b61353c KH |
2733 | |
2734 | DEFUN ("set-network-process-option", | |
2735 | Fset_network_process_option, Sset_network_process_option, | |
2736 | 3, 4, 0, | |
2737 | doc: /* For network process PROCESS set option OPTION to value VALUE. | |
2738 | See `make-network-process' for a list of options and values. | |
2739 | If optional fourth arg NO-ERROR is non-nil, don't signal an error if | |
2740 | OPTION is not a supported option, return nil instead; otherwise return t. */) | |
2741 | (process, option, value, no_error) | |
2742 | Lisp_Object process, option, value; | |
2743 | Lisp_Object no_error; | |
e690ca94 | 2744 | { |
6b61353c KH |
2745 | int s; |
2746 | struct Lisp_Process *p; | |
e690ca94 | 2747 | |
e690ca94 | 2748 | CHECK_PROCESS (process); |
6b61353c KH |
2749 | p = XPROCESS (process); |
2750 | if (!NETCONN1_P (p)) | |
2751 | error ("Process is not a network process"); | |
2752 | ||
60f0fb11 | 2753 | s = p->infd; |
6b61353c KH |
2754 | if (s < 0) |
2755 | error ("Process is not running"); | |
2756 | ||
2757 | if (set_socket_option (s, option, value)) | |
e690ca94 | 2758 | { |
6b61353c KH |
2759 | p->childp = Fplist_put (p->childp, option, value); |
2760 | return Qt; | |
e690ca94 | 2761 | } |
6b61353c KH |
2762 | |
2763 | if (NILP (no_error)) | |
2764 | error ("Unknown or unsupported option"); | |
2765 | ||
2766 | return Qnil; | |
e690ca94 | 2767 | } |
6b61353c | 2768 | |
e690ca94 | 2769 | \f |
d888760c GM |
2770 | #ifdef HAVE_SERIAL |
2771 | DEFUN ("serial-process-configure", | |
2772 | Fserial_process_configure, | |
2773 | Sserial_process_configure, | |
2774 | 0, MANY, 0, | |
2775 | doc: /* Configure speed, bytesize, etc. of a serial process. | |
2776 | ||
2777 | Arguments are specified as keyword/argument pairs. Attributes that | |
2778 | are not given are re-initialized from the process's current | |
2779 | configuration (available via the function `process-contact') or set to | |
2780 | reasonable default values. The following arguments are defined: | |
2781 | ||
2782 | :process PROCESS | |
2783 | :name NAME | |
2784 | :buffer BUFFER | |
2785 | :port PORT | |
2786 | -- Any of these arguments can be given to identify the process that is | |
2787 | to be configured. If none of these arguments is given, the current | |
2788 | buffer's process is used. | |
2789 | ||
2790 | :speed SPEED -- SPEED is the speed of the serial port in bits per | |
2791 | second, also called baud rate. Any value can be given for SPEED, but | |
2792 | most serial ports work only at a few defined values between 1200 and | |
2793 | 115200, with 9600 being the most common value. If SPEED is nil, the | |
2794 | serial port is not configured any further, i.e., all other arguments | |
2795 | are ignored. This may be useful for special serial ports such as | |
2796 | Bluetooth-to-serial converters which can only be configured through AT | |
2797 | commands. A value of nil for SPEED can be used only when passed | |
2798 | through `make-serial-process' or `serial-term'. | |
2799 | ||
2800 | :bytesize BYTESIZE -- BYTESIZE is the number of bits per byte, which | |
2801 | can be 7 or 8. If BYTESIZE is not given or nil, a value of 8 is used. | |
2802 | ||
2803 | :parity PARITY -- PARITY can be nil (don't use parity), the symbol | |
2804 | `odd' (use odd parity), or the symbol `even' (use even parity). If | |
2805 | PARITY is not given, no parity is used. | |
2806 | ||
2807 | :stopbits STOPBITS -- STOPBITS is the number of stopbits used to | |
2808 | terminate a byte transmission. STOPBITS can be 1 or 2. If STOPBITS | |
2809 | is not given or nil, 1 stopbit is used. | |
2810 | ||
2811 | :flowcontrol FLOWCONTROL -- FLOWCONTROL determines the type of | |
2812 | flowcontrol to be used, which is either nil (don't use flowcontrol), | |
2813 | the symbol `hw' (use RTS/CTS hardware flowcontrol), or the symbol `sw' | |
2814 | \(use XON/XOFF software flowcontrol). If FLOWCONTROL is not given, no | |
2815 | flowcontrol is used. | |
2816 | ||
2817 | `serial-process-configure' is called by `make-serial-process' for the | |
2818 | initial configuration of the serial port. | |
2819 | ||
2820 | Examples: | |
2821 | ||
2822 | \(serial-process-configure :process "/dev/ttyS0" :speed 1200) | |
2823 | ||
2824 | \(serial-process-configure | |
2825 | :buffer "COM1" :stopbits 1 :parity 'odd :flowcontrol 'hw) | |
2826 | ||
2827 | \(serial-process-configure :port "\\\\.\\COM13" :bytesize 7) | |
2828 | ||
2829 | usage: (serial-process-configure &rest ARGS) */) | |
2830 | (nargs, args) | |
2831 | int nargs; | |
2832 | Lisp_Object *args; | |
2833 | { | |
2834 | struct Lisp_Process *p; | |
2835 | Lisp_Object contact = Qnil; | |
2836 | Lisp_Object proc = Qnil; | |
2837 | struct gcpro gcpro1; | |
2838 | ||
2839 | contact = Flist (nargs, args); | |
2840 | GCPRO1 (contact); | |
2841 | ||
2842 | proc = Fplist_get (contact, QCprocess); | |
2843 | if (NILP (proc)) | |
2844 | proc = Fplist_get (contact, QCname); | |
2845 | if (NILP (proc)) | |
2846 | proc = Fplist_get (contact, QCbuffer); | |
2847 | if (NILP (proc)) | |
2848 | proc = Fplist_get (contact, QCport); | |
2849 | proc = get_process (proc); | |
2850 | p = XPROCESS (proc); | |
a879ee6f | 2851 | if (!EQ (p->type, Qserial)) |
d888760c GM |
2852 | error ("Not a serial process"); |
2853 | ||
2854 | if (NILP (Fplist_get (p->childp, QCspeed))) | |
2855 | { | |
2856 | UNGCPRO; | |
2857 | return Qnil; | |
2858 | } | |
2859 | ||
2860 | serial_configure (p, contact); | |
2861 | ||
2862 | UNGCPRO; | |
2863 | return Qnil; | |
2864 | } | |
d888760c | 2865 | |
d888760c GM |
2866 | /* Used by make-serial-process to recover from errors. */ |
2867 | Lisp_Object make_serial_process_unwind (Lisp_Object proc) | |
2868 | { | |
2869 | if (!PROCESSP (proc)) | |
2870 | abort (); | |
2871 | remove_process (proc); | |
2872 | return Qnil; | |
2873 | } | |
d888760c | 2874 | |
d888760c GM |
2875 | DEFUN ("make-serial-process", Fmake_serial_process, Smake_serial_process, |
2876 | 0, MANY, 0, | |
2877 | doc: /* Create and return a serial port process. | |
2878 | ||
2879 | In Emacs, serial port connections are represented by process objects, | |
2880 | so input and output work as for subprocesses, and `delete-process' | |
2881 | closes a serial port connection. However, a serial process has no | |
2882 | process id, it cannot be signaled, and the status codes are different | |
2883 | from normal processes. | |
2884 | ||
2885 | `make-serial-process' creates a process and a buffer, on which you | |
2886 | probably want to use `process-send-string'. Try \\[serial-term] for | |
2887 | an interactive terminal. See below for examples. | |
2888 | ||
2889 | Arguments are specified as keyword/argument pairs. The following | |
2890 | arguments are defined: | |
2891 | ||
2892 | :port PORT -- (mandatory) PORT is the path or name of the serial port. | |
2893 | For example, this could be "/dev/ttyS0" on Unix. On Windows, this | |
2894 | could be "COM1", or "\\\\.\\COM10" for ports higher than COM9 (double | |
2895 | the backslashes in strings). | |
2896 | ||
2897 | :speed SPEED -- (mandatory) is handled by `serial-process-configure', | |
2898 | which is called by `make-serial-process'. | |
2899 | ||
2900 | :name NAME -- NAME is the name of the process. If NAME is not given, | |
2901 | the value of PORT is used. | |
2902 | ||
2903 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
2904 | with the process. Process output goes at the end of that buffer, | |
2905 | unless you specify an output stream or filter function to handle the | |
2906 | output. If BUFFER is not given, the value of NAME is used. | |
2907 | ||
2908 | :coding CODING -- If CODING is a symbol, it specifies the coding | |
2909 | system used for both reading and writing for this process. If CODING | |
2910 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
2911 | ENCODING is used for writing. | |
2912 | ||
2913 | :noquery BOOL -- When exiting Emacs, query the user if BOOL is nil and | |
2914 | the process is running. If BOOL is not given, query before exiting. | |
2915 | ||
2916 | :stop BOOL -- Start process in the `stopped' state if BOOL is non-nil. | |
2917 | In the stopped state, a serial process does not accept incoming data, | |
2918 | but you can send outgoing data. The stopped state is cleared by | |
2919 | `continue-process' and set by `stop-process'. | |
2920 | ||
2921 | :filter FILTER -- Install FILTER as the process filter. | |
2922 | ||
2923 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. | |
2924 | ||
2925 | :plist PLIST -- Install PLIST as the initial plist of the process. | |
2926 | ||
2927 | :speed | |
2928 | :bytesize | |
2929 | :parity | |
2930 | :stopbits | |
2931 | :flowcontrol | |
2932 | -- These arguments are handled by `serial-process-configure', which is | |
2933 | called by `make-serial-process'. | |
2934 | ||
2935 | The original argument list, possibly modified by later configuration, | |
2936 | is available via the function `process-contact'. | |
2937 | ||
2938 | Examples: | |
2939 | ||
2940 | \(make-serial-process :port "/dev/ttyS0" :speed 9600) | |
2941 | ||
2942 | \(make-serial-process :port "COM1" :speed 115200 :stopbits 2) | |
2943 | ||
2944 | \(make-serial-process :port "\\\\.\\COM13" :speed 1200 :bytesize 7 :parity 'odd) | |
2945 | ||
2946 | \(make-serial-process :port "/dev/tty.BlueConsole-SPP-1" :speed nil) | |
2947 | ||
2948 | usage: (make-serial-process &rest ARGS) */) | |
2949 | (nargs, args) | |
2950 | int nargs; | |
2951 | Lisp_Object *args; | |
2952 | { | |
2953 | int fd = -1; | |
2954 | Lisp_Object proc, contact, port; | |
2955 | struct Lisp_Process *p; | |
2956 | struct gcpro gcpro1; | |
2957 | Lisp_Object name, buffer; | |
2958 | Lisp_Object tem, val; | |
2959 | int specpdl_count = -1; | |
2960 | ||
2961 | if (nargs == 0) | |
2962 | return Qnil; | |
2963 | ||
2964 | contact = Flist (nargs, args); | |
2965 | GCPRO1 (contact); | |
2966 | ||
2967 | port = Fplist_get (contact, QCport); | |
2968 | if (NILP (port)) | |
2969 | error ("No port specified"); | |
2970 | CHECK_STRING (port); | |
2971 | ||
2972 | if (NILP (Fplist_member (contact, QCspeed))) | |
2973 | error (":speed not specified"); | |
2974 | if (!NILP (Fplist_get (contact, QCspeed))) | |
2975 | CHECK_NUMBER (Fplist_get (contact, QCspeed)); | |
2976 | ||
2977 | name = Fplist_get (contact, QCname); | |
2978 | if (NILP (name)) | |
2979 | name = port; | |
2980 | CHECK_STRING (name); | |
2981 | proc = make_process (name); | |
2982 | specpdl_count = SPECPDL_INDEX (); | |
2983 | record_unwind_protect (make_serial_process_unwind, proc); | |
2984 | p = XPROCESS (proc); | |
2985 | ||
2986 | fd = serial_open ((char*) SDATA (port)); | |
2987 | p->infd = fd; | |
2988 | p->outfd = fd; | |
2989 | if (fd > max_process_desc) | |
2990 | max_process_desc = fd; | |
2991 | chan_process[fd] = proc; | |
2992 | ||
2993 | buffer = Fplist_get (contact, QCbuffer); | |
2994 | if (NILP (buffer)) | |
2995 | buffer = name; | |
2996 | buffer = Fget_buffer_create (buffer); | |
2997 | p->buffer = buffer; | |
2998 | ||
2999 | p->childp = contact; | |
3000 | p->plist = Fcopy_sequence (Fplist_get (contact, QCplist)); | |
3001 | p->type = Qserial; | |
3002 | p->sentinel = Fplist_get (contact, QCsentinel); | |
3003 | p->filter = Fplist_get (contact, QCfilter); | |
3004 | p->log = Qnil; | |
3005 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) | |
3006 | p->kill_without_query = 1; | |
3007 | if (tem = Fplist_get (contact, QCstop), !NILP (tem)) | |
3008 | p->command = Qt; | |
3009 | p->pty_flag = 0; | |
3010 | ||
3011 | if (!EQ (p->command, Qt)) | |
3012 | { | |
3013 | FD_SET (fd, &input_wait_mask); | |
3014 | FD_SET (fd, &non_keyboard_wait_mask); | |
3015 | } | |
3016 | ||
3017 | if (BUFFERP (buffer)) | |
3018 | { | |
3019 | set_marker_both (p->mark, buffer, | |
3020 | BUF_ZV (XBUFFER (buffer)), | |
3021 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
3022 | } | |
3023 | ||
3024 | tem = Fplist_member (contact, QCcoding); | |
3025 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
3026 | tem = Qnil; | |
3027 | ||
3028 | val = Qnil; | |
3029 | if (!NILP (tem)) | |
3030 | { | |
3031 | val = XCAR (XCDR (tem)); | |
3032 | if (CONSP (val)) | |
3033 | val = XCAR (val); | |
3034 | } | |
3035 | else if (!NILP (Vcoding_system_for_read)) | |
3036 | val = Vcoding_system_for_read; | |
3037 | else if ((!NILP (buffer) && NILP (XBUFFER (buffer)->enable_multibyte_characters)) | |
3038 | || (NILP (buffer) && NILP (buffer_defaults.enable_multibyte_characters))) | |
3039 | val = Qnil; | |
3040 | p->decode_coding_system = val; | |
3041 | ||
3042 | val = Qnil; | |
3043 | if (!NILP (tem)) | |
3044 | { | |
3045 | val = XCAR (XCDR (tem)); | |
3046 | if (CONSP (val)) | |
3047 | val = XCDR (val); | |
3048 | } | |
3049 | else if (!NILP (Vcoding_system_for_write)) | |
3050 | val = Vcoding_system_for_write; | |
3051 | else if ((!NILP (buffer) && NILP (XBUFFER (buffer)->enable_multibyte_characters)) | |
3052 | || (NILP (buffer) && NILP (buffer_defaults.enable_multibyte_characters))) | |
3053 | val = Qnil; | |
3054 | p->encode_coding_system = val; | |
3055 | ||
3056 | setup_process_coding_systems (proc); | |
3057 | p->decoding_buf = make_uninit_string (0); | |
3058 | p->decoding_carryover = 0; | |
3059 | p->encoding_buf = make_uninit_string (0); | |
3060 | p->inherit_coding_system_flag | |
3061 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); | |
3062 | ||
3063 | Fserial_process_configure(nargs, args); | |
3064 | ||
3065 | specpdl_ptr = specpdl + specpdl_count; | |
3066 | ||
3067 | UNGCPRO; | |
3068 | return proc; | |
3069 | } | |
3070 | #endif /* HAVE_SERIAL */ | |
3071 | ||
e690ca94 KS |
3072 | /* Create a network stream/datagram client/server process. Treated |
3073 | exactly like a normal process when reading and writing. Primary | |
d0d6b7c5 JB |
3074 | differences are in status display and process deletion. A network |
3075 | connection has no PID; you cannot signal it. All you can do is | |
e690ca94 KS |
3076 | stop/continue it and deactivate/close it via delete-process */ |
3077 | ||
177c0ea7 JB |
3078 | DEFUN ("make-network-process", Fmake_network_process, Smake_network_process, |
3079 | 0, MANY, 0, | |
e690ca94 KS |
3080 | doc: /* Create and return a network server or client process. |
3081 | ||
fa9d4315 | 3082 | In Emacs, network connections are represented by process objects, so |
e690ca94 KS |
3083 | input and output work as for subprocesses and `delete-process' closes |
3084 | a network connection. However, a network process has no process id, | |
d22426e1 | 3085 | it cannot be signaled, and the status codes are different from normal |
e690ca94 KS |
3086 | processes. |
3087 | ||
3088 | Arguments are specified as keyword/argument pairs. The following | |
3089 | arguments are defined: | |
3090 | ||
3091 | :name NAME -- NAME is name for process. It is modified if necessary | |
3092 | to make it unique. | |
3093 | ||
3094 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
3095 | with the process. Process output goes at end of that buffer, unless | |
3096 | you specify an output stream or filter function to handle the output. | |
3097 | BUFFER may be also nil, meaning that this process is not associated | |
3098 | with any buffer. | |
3099 | ||
3100 | :host HOST -- HOST is name of the host to connect to, or its IP | |
3101 | address. The symbol `local' specifies the local host. If specified | |
3102 | for a server process, it must be a valid name or address for the local | |
3103 | host, and only clients connecting to that address will be accepted. | |
3104 | ||
3105 | :service SERVICE -- SERVICE is name of the service desired, or an | |
3106 | integer specifying a port number to connect to. If SERVICE is t, | |
eba25e7c GM |
3107 | a random port number is selected for the server. (If Emacs was |
3108 | compiled with getaddrinfo, a port number can also be specified as a | |
3109 | string, e.g. "80", as well as an integer. This is not portable.) | |
e690ca94 | 3110 | |
9057ff80 KS |
3111 | :type TYPE -- TYPE is the type of connection. The default (nil) is a |
3112 | stream type connection, `datagram' creates a datagram type connection. | |
3113 | ||
e690ca94 | 3114 | :family FAMILY -- FAMILY is the address (and protocol) family for the |
e1652a86 KS |
3115 | service specified by HOST and SERVICE. The default (nil) is to use |
3116 | whatever address family (IPv4 or IPv6) that is defined for the host | |
3117 | and port number specified by HOST and SERVICE. Other address families | |
3118 | supported are: | |
e690ca94 | 3119 | local -- for a local (i.e. UNIX) address specified by SERVICE. |
e1652a86 KS |
3120 | ipv4 -- use IPv4 address family only. |
3121 | ipv6 -- use IPv6 address family only. | |
e690ca94 KS |
3122 | |
3123 | :local ADDRESS -- ADDRESS is the local address used for the connection. | |
3124 | This parameter is ignored when opening a client process. When specified | |
3125 | for a server process, the FAMILY, HOST and SERVICE args are ignored. | |
3126 | ||
3127 | :remote ADDRESS -- ADDRESS is the remote partner's address for the | |
3128 | connection. This parameter is ignored when opening a stream server | |
3129 | process. For a datagram server process, it specifies the initial | |
3130 | setting of the remote datagram address. When specified for a client | |
3131 | process, the FAMILY, HOST, and SERVICE args are ignored. | |
3132 | ||
3133 | The format of ADDRESS depends on the address family: | |
3134 | - An IPv4 address is represented as an vector of integers [A B C D P] | |
3135 | corresponding to numeric IP address A.B.C.D and port number P. | |
3136 | - A local address is represented as a string with the address in the | |
3137 | local address space. | |
3138 | - An "unsupported family" address is represented by a cons (F . AV) | |
3139 | where F is the family number and AV is a vector containing the socket | |
3140 | address data with one element per address data byte. Do not rely on | |
3141 | this format in portable code, as it may depend on implementation | |
3142 | defined constants, data sizes, and data structure alignment. | |
3143 | ||
6b61353c KH |
3144 | :coding CODING -- If CODING is a symbol, it specifies the coding |
3145 | system used for both reading and writing for this process. If CODING | |
3146 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
3147 | ENCODING is used for writing. | |
e690ca94 KS |
3148 | |
3149 | :nowait BOOL -- If BOOL is non-nil for a stream type client process, | |
3150 | return without waiting for the connection to complete; instead, the | |
3151 | sentinel function will be called with second arg matching "open" (if | |
3152 | successful) or "failed" when the connect completes. Default is to use | |
3153 | a blocking connect (i.e. wait) for stream type connections. | |
3154 | ||
3155 | :noquery BOOL -- Query the user unless BOOL is non-nil, and process is | |
f3d9532b | 3156 | running when Emacs is exited. |
e690ca94 KS |
3157 | |
3158 | :stop BOOL -- Start process in the `stopped' state if BOOL non-nil. | |
3159 | In the stopped state, a server process does not accept new | |
3160 | connections, and a client process does not handle incoming traffic. | |
3161 | The stopped state is cleared by `continue-process' and set by | |
3162 | `stop-process'. | |
3163 | ||
3164 | :filter FILTER -- Install FILTER as the process filter. | |
3165 | ||
7392e23c KS |
3166 | :filter-multibyte BOOL -- If BOOL is non-nil, strings given to the |
3167 | process filter are multibyte, otherwise they are unibyte. | |
e0f24100 | 3168 | If this keyword is not specified, the strings are multibyte if |
03f04413 KH |
3169 | `default-enable-multibyte-characters' is non-nil. |
3170 | ||
e690ca94 KS |
3171 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. |
3172 | ||
3173 | :log LOG -- Install LOG as the server process log function. This | |
991234f0 | 3174 | function is called when the server accepts a network connection from a |
e690ca94 KS |
3175 | client. The arguments are SERVER, CLIENT, and MESSAGE, where SERVER |
3176 | is the server process, CLIENT is the new process for the connection, | |
3177 | and MESSAGE is a string. | |
3178 | ||
faa7db08 | 3179 | :plist PLIST -- Install PLIST as the new process' initial plist. |
177c0ea7 | 3180 | |
6b61353c | 3181 | :server QLEN -- if QLEN is non-nil, create a server process for the |
e690ca94 | 3182 | specified FAMILY, SERVICE, and connection type (stream or datagram). |
6b61353c KH |
3183 | If QLEN is an integer, it is used as the max. length of the server's |
3184 | pending connection queue (also known as the backlog); the default | |
3185 | queue length is 5. Default is to create a client process. | |
3186 | ||
3187 | The following network options can be specified for this connection: | |
3188 | ||
3189 | :broadcast BOOL -- Allow send and receive of datagram broadcasts. | |
3190 | :dontroute BOOL -- Only send to directly connected hosts. | |
3191 | :keepalive BOOL -- Send keep-alive messages on network stream. | |
3192 | :linger BOOL or TIMEOUT -- Send queued messages before closing. | |
3193 | :oobinline BOOL -- Place out-of-band data in receive data stream. | |
3194 | :priority INT -- Set protocol defined priority for sent packets. | |
3195 | :reuseaddr BOOL -- Allow reusing a recently used local address | |
3196 | (this is allowed by default for a server process). | |
3197 | :bindtodevice NAME -- bind to interface NAME. Using this may require | |
3198 | special privileges on some systems. | |
3199 | ||
3200 | Consult the relevant system programmer's manual pages for more | |
3201 | information on using these options. | |
3202 | ||
3203 | ||
3204 | A server process will listen for and accept connections from clients. | |
3205 | When a client connection is accepted, a new network process is created | |
3206 | for the connection with the following parameters: | |
e690ca94 | 3207 | |
e690ca94 KS |
3208 | - The client's process name is constructed by concatenating the server |
3209 | process' NAME and a client identification string. | |
3210 | - If the FILTER argument is non-nil, the client process will not get a | |
3211 | separate process buffer; otherwise, the client's process buffer is a newly | |
3212 | created buffer named after the server process' BUFFER name or process | |
177c0ea7 | 3213 | NAME concatenated with the client identification string. |
e690ca94 KS |
3214 | - The connection type and the process filter and sentinel parameters are |
3215 | inherited from the server process' TYPE, FILTER and SENTINEL. | |
3216 | - The client process' contact info is set according to the client's | |
3217 | addressing information (typically an IP address and a port number). | |
faa7db08 | 3218 | - The client process' plist is initialized from the server's plist. |
e690ca94 KS |
3219 | |
3220 | Notice that the FILTER and SENTINEL args are never used directly by | |
3221 | the server process. Also, the BUFFER argument is not used directly by | |
9e9a5792 KS |
3222 | the server process, but via the optional :log function, accepted (and |
3223 | failed) connections may be logged in the server process' buffer. | |
e690ca94 | 3224 | |
365aee82 KS |
3225 | The original argument list, modified with the actual connection |
3226 | information, is available via the `process-contact' function. | |
365aee82 | 3227 | |
fa9d4315 | 3228 | usage: (make-network-process &rest ARGS) */) |
e690ca94 KS |
3229 | (nargs, args) |
3230 | int nargs; | |
3231 | Lisp_Object *args; | |
d0d6b7c5 JB |
3232 | { |
3233 | Lisp_Object proc; | |
e690ca94 KS |
3234 | Lisp_Object contact; |
3235 | struct Lisp_Process *p; | |
70dbdb36 | 3236 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 3237 | struct addrinfo ai, *res, *lres; |
e1652a86 KS |
3238 | struct addrinfo hints; |
3239 | char *portstring, portbuf[128]; | |
70dbdb36 | 3240 | #else /* HAVE_GETADDRINFO */ |
dd2a17ab KS |
3241 | struct _emacs_addrinfo |
3242 | { | |
3243 | int ai_family; | |
3244 | int ai_socktype; | |
3245 | int ai_protocol; | |
3246 | int ai_addrlen; | |
3247 | struct sockaddr *ai_addr; | |
3248 | struct _emacs_addrinfo *ai_next; | |
3249 | } ai, *res, *lres; | |
418b48fd | 3250 | #endif /* HAVE_GETADDRINFO */ |
e690ca94 KS |
3251 | struct sockaddr_in address_in; |
3252 | #ifdef HAVE_LOCAL_SOCKETS | |
3253 | struct sockaddr_un address_un; | |
3254 | #endif | |
3255 | int port; | |
dd2a17ab KS |
3256 | int ret = 0; |
3257 | int xerrno = 0; | |
418b48fd | 3258 | int s = -1, outch, inch; |
e690ca94 | 3259 | struct gcpro gcpro1; |
aed13378 | 3260 | int count = SPECPDL_INDEX (); |
5684cd6e | 3261 | int count1; |
e690ca94 KS |
3262 | Lisp_Object QCaddress; /* one of QClocal or QCremote */ |
3263 | Lisp_Object tem; | |
3264 | Lisp_Object name, buffer, host, service, address; | |
3265 | Lisp_Object filter, sentinel; | |
3266 | int is_non_blocking_client = 0; | |
6b61353c | 3267 | int is_server = 0, backlog = 5; |
9057ff80 | 3268 | int socktype; |
e690ca94 KS |
3269 | int family = -1; |
3270 | ||
3271 | if (nargs == 0) | |
3272 | return Qnil; | |
dd2a17ab | 3273 | |
e690ca94 KS |
3274 | /* Save arguments for process-contact and clone-process. */ |
3275 | contact = Flist (nargs, args); | |
3276 | GCPRO1 (contact); | |
3277 | ||
bff3ed0a RS |
3278 | #ifdef WINDOWSNT |
3279 | /* Ensure socket support is loaded if available. */ | |
3280 | init_winsock (TRUE); | |
3281 | #endif | |
3282 | ||
9057ff80 KS |
3283 | /* :type TYPE (nil: stream, datagram */ |
3284 | tem = Fplist_get (contact, QCtype); | |
3285 | if (NILP (tem)) | |
3286 | socktype = SOCK_STREAM; | |
3287 | #ifdef DATAGRAM_SOCKETS | |
3288 | else if (EQ (tem, Qdatagram)) | |
3289 | socktype = SOCK_DGRAM; | |
e690ca94 | 3290 | #endif |
9057ff80 KS |
3291 | else |
3292 | error ("Unsupported connection type"); | |
e690ca94 KS |
3293 | |
3294 | /* :server BOOL */ | |
3295 | tem = Fplist_get (contact, QCserver); | |
3296 | if (!NILP (tem)) | |
3297 | { | |
75728599 JR |
3298 | /* Don't support network sockets when non-blocking mode is |
3299 | not available, since a blocked Emacs is not useful. */ | |
132d0475 | 3300 | #if !defined(O_NONBLOCK) && !defined(O_NDELAY) |
e690ca94 KS |
3301 | error ("Network servers not supported"); |
3302 | #else | |
3303 | is_server = 1; | |
6b61353c KH |
3304 | if (INTEGERP (tem)) |
3305 | backlog = XINT (tem); | |
e690ca94 KS |
3306 | #endif |
3307 | } | |
3308 | ||
3309 | /* Make QCaddress an alias for :local (server) or :remote (client). */ | |
3310 | QCaddress = is_server ? QClocal : QCremote; | |
3311 | ||
d7e344cd | 3312 | /* :nowait BOOL */ |
e690ca94 KS |
3313 | if (!is_server && socktype == SOCK_STREAM |
3314 | && (tem = Fplist_get (contact, QCnowait), !NILP (tem))) | |
3315 | { | |
3316 | #ifndef NON_BLOCKING_CONNECT | |
3317 | error ("Non-blocking connect not supported"); | |
3318 | #else | |
3319 | is_non_blocking_client = 1; | |
3320 | #endif | |
3321 | } | |
3322 | ||
3323 | name = Fplist_get (contact, QCname); | |
3324 | buffer = Fplist_get (contact, QCbuffer); | |
3325 | filter = Fplist_get (contact, QCfilter); | |
3326 | sentinel = Fplist_get (contact, QCsentinel); | |
3327 | ||
b7826503 | 3328 | CHECK_STRING (name); |
e690ca94 | 3329 | |
e690ca94 KS |
3330 | /* Initialize addrinfo structure in case we don't use getaddrinfo. */ |
3331 | ai.ai_socktype = socktype; | |
3332 | ai.ai_protocol = 0; | |
3333 | ai.ai_next = NULL; | |
3334 | res = &ai; | |
a319f7c1 | 3335 | |
e690ca94 KS |
3336 | /* :local ADDRESS or :remote ADDRESS */ |
3337 | address = Fplist_get (contact, QCaddress); | |
3338 | if (!NILP (address)) | |
a319f7c1 | 3339 | { |
e690ca94 KS |
3340 | host = service = Qnil; |
3341 | ||
3342 | if (!(ai.ai_addrlen = get_lisp_to_sockaddr_size (address, &family))) | |
3343 | error ("Malformed :address"); | |
3344 | ai.ai_family = family; | |
3345 | ai.ai_addr = alloca (ai.ai_addrlen); | |
3346 | conv_lisp_to_sockaddr (family, address, ai.ai_addr, ai.ai_addrlen); | |
3347 | goto open_socket; | |
a319f7c1 | 3348 | } |
e690ca94 KS |
3349 | |
3350 | /* :family FAMILY -- nil (for Inet), local, or integer. */ | |
3351 | tem = Fplist_get (contact, QCfamily); | |
e1652a86 | 3352 | if (NILP (tem)) |
a319f7c1 | 3353 | { |
87b6ca8d | 3354 | #if defined(HAVE_GETADDRINFO) && defined(AF_INET6) |
e1652a86 KS |
3355 | family = AF_UNSPEC; |
3356 | #else | |
3357 | family = AF_INET; | |
e690ca94 | 3358 | #endif |
a319f7c1 | 3359 | } |
e1652a86 KS |
3360 | #ifdef HAVE_LOCAL_SOCKETS |
3361 | else if (EQ (tem, Qlocal)) | |
3362 | family = AF_LOCAL; | |
3363 | #endif | |
3364 | #ifdef AF_INET6 | |
3365 | else if (EQ (tem, Qipv6)) | |
3366 | family = AF_INET6; | |
3367 | #endif | |
3368 | else if (EQ (tem, Qipv4)) | |
3369 | family = AF_INET; | |
3370 | else if (INTEGERP (tem)) | |
3371 | family = XINT (tem); | |
3372 | else | |
e690ca94 | 3373 | error ("Unknown address family"); |
e1652a86 | 3374 | |
e690ca94 KS |
3375 | ai.ai_family = family; |
3376 | ||
3377 | /* :service SERVICE -- string, integer (port number), or t (random port). */ | |
3378 | service = Fplist_get (contact, QCservice); | |
3379 | ||
3380 | #ifdef HAVE_LOCAL_SOCKETS | |
3381 | if (family == AF_LOCAL) | |
d0d6b7c5 | 3382 | { |
e690ca94 KS |
3383 | /* Host is not used. */ |
3384 | host = Qnil; | |
b7826503 | 3385 | CHECK_STRING (service); |
e690ca94 KS |
3386 | bzero (&address_un, sizeof address_un); |
3387 | address_un.sun_family = AF_LOCAL; | |
d5db4077 | 3388 | strncpy (address_un.sun_path, SDATA (service), sizeof address_un.sun_path); |
e690ca94 KS |
3389 | ai.ai_addr = (struct sockaddr *) &address_un; |
3390 | ai.ai_addrlen = sizeof address_un; | |
3391 | goto open_socket; | |
d0d6b7c5 | 3392 | } |
e690ca94 | 3393 | #endif |
a319f7c1 | 3394 | |
e690ca94 KS |
3395 | /* :host HOST -- hostname, ip address, or 'local for localhost. */ |
3396 | host = Fplist_get (contact, QChost); | |
3397 | if (!NILP (host)) | |
3398 | { | |
3399 | if (EQ (host, Qlocal)) | |
3400 | host = build_string ("localhost"); | |
3401 | CHECK_STRING (host); | |
3402 | } | |
d0d6b7c5 | 3403 | |
798b64bb KH |
3404 | /* Slow down polling to every ten seconds. |
3405 | Some kernels have a bug which causes retrying connect to fail | |
3406 | after a connect. Polling can interfere with gethostbyname too. */ | |
3407 | #ifdef POLL_FOR_INPUT | |
e690ca94 KS |
3408 | if (socktype == SOCK_STREAM) |
3409 | { | |
3410 | record_unwind_protect (unwind_stop_other_atimers, Qnil); | |
3411 | bind_polling_period (10); | |
3412 | } | |
798b64bb KH |
3413 | #endif |
3414 | ||
a319f7c1 | 3415 | #ifdef HAVE_GETADDRINFO |
e690ca94 KS |
3416 | /* If we have a host, use getaddrinfo to resolve both host and service. |
3417 | Otherwise, use getservbyname to lookup the service. */ | |
3418 | if (!NILP (host)) | |
3419 | { | |
3420 | ||
3421 | /* SERVICE can either be a string or int. | |
3422 | Convert to a C string for later use by getaddrinfo. */ | |
3423 | if (EQ (service, Qt)) | |
3424 | portstring = "0"; | |
3425 | else if (INTEGERP (service)) | |
3426 | { | |
3427 | sprintf (portbuf, "%ld", (long) XINT (service)); | |
3428 | portstring = portbuf; | |
3429 | } | |
3430 | else | |
3431 | { | |
3432 | CHECK_STRING (service); | |
d5db4077 | 3433 | portstring = SDATA (service); |
e690ca94 KS |
3434 | } |
3435 | ||
3436 | immediate_quit = 1; | |
3437 | QUIT; | |
3438 | memset (&hints, 0, sizeof (hints)); | |
3439 | hints.ai_flags = 0; | |
e1652a86 | 3440 | hints.ai_family = family; |
e690ca94 KS |
3441 | hints.ai_socktype = socktype; |
3442 | hints.ai_protocol = 0; | |
08116b48 CY |
3443 | |
3444 | #ifdef HAVE_RES_INIT | |
3445 | res_init (); | |
3446 | #endif | |
3447 | ||
d5db4077 | 3448 | ret = getaddrinfo (SDATA (host), portstring, &hints, &res); |
e690ca94 | 3449 | if (ret) |
f6270f62 | 3450 | #ifdef HAVE_GAI_STRERROR |
d5db4077 | 3451 | error ("%s/%s %s", SDATA (host), portstring, gai_strerror(ret)); |
f6270f62 | 3452 | #else |
63136da6 | 3453 | error ("%s/%s getaddrinfo error %d", SDATA (host), portstring, ret); |
f6270f62 | 3454 | #endif |
e690ca94 | 3455 | immediate_quit = 0; |
a319f7c1 | 3456 | |
e690ca94 KS |
3457 | goto open_socket; |
3458 | } | |
3459 | #endif /* HAVE_GETADDRINFO */ | |
a319f7c1 | 3460 | |
e690ca94 KS |
3461 | /* We end up here if getaddrinfo is not defined, or in case no hostname |
3462 | has been specified (e.g. for a local server process). */ | |
3463 | ||
3464 | if (EQ (service, Qt)) | |
3465 | port = 0; | |
3466 | else if (INTEGERP (service)) | |
3467 | port = htons ((unsigned short) XINT (service)); | |
3468 | else | |
616da37c | 3469 | { |
e690ca94 KS |
3470 | struct servent *svc_info; |
3471 | CHECK_STRING (service); | |
177c0ea7 | 3472 | svc_info = getservbyname (SDATA (service), |
e690ca94 KS |
3473 | (socktype == SOCK_DGRAM ? "udp" : "tcp")); |
3474 | if (svc_info == 0) | |
d5db4077 | 3475 | error ("Unknown service: %s", SDATA (service)); |
e690ca94 KS |
3476 | port = svc_info->s_port; |
3477 | } | |
3478 | ||
3479 | bzero (&address_in, sizeof address_in); | |
3480 | address_in.sin_family = family; | |
3481 | address_in.sin_addr.s_addr = INADDR_ANY; | |
3482 | address_in.sin_port = port; | |
3483 | ||
3484 | #ifndef HAVE_GETADDRINFO | |
3485 | if (!NILP (host)) | |
3486 | { | |
3487 | struct hostent *host_info_ptr; | |
3488 | ||
3489 | /* gethostbyname may fail with TRY_AGAIN, but we don't honour that, | |
f3d9532b | 3490 | as it may `hang' Emacs for a very long time. */ |
5d6c2aa3 RS |
3491 | immediate_quit = 1; |
3492 | QUIT; | |
08116b48 CY |
3493 | |
3494 | #ifdef HAVE_RES_INIT | |
3495 | res_init (); | |
3496 | #endif | |
3497 | ||
d5db4077 | 3498 | host_info_ptr = gethostbyname (SDATA (host)); |
5d6c2aa3 | 3499 | immediate_quit = 0; |
177c0ea7 | 3500 | |
e690ca94 KS |
3501 | if (host_info_ptr) |
3502 | { | |
3503 | bcopy (host_info_ptr->h_addr, (char *) &address_in.sin_addr, | |
3504 | host_info_ptr->h_length); | |
3505 | family = host_info_ptr->h_addrtype; | |
3506 | address_in.sin_family = family; | |
3507 | } | |
3508 | else | |
3509 | /* Attempt to interpret host as numeric inet address */ | |
3510 | { | |
4624371d | 3511 | unsigned long numeric_addr; |
d5db4077 | 3512 | numeric_addr = inet_addr ((char *) SDATA (host)); |
4624371d | 3513 | if (numeric_addr == -1) |
d5db4077 | 3514 | error ("Unknown host \"%s\"", SDATA (host)); |
d0d6b7c5 | 3515 | |
e690ca94 KS |
3516 | bcopy ((char *)&numeric_addr, (char *) &address_in.sin_addr, |
3517 | sizeof (address_in.sin_addr)); | |
3518 | } | |
d0d6b7c5 | 3519 | |
e690ca94 | 3520 | } |
dd2a17ab | 3521 | #endif /* not HAVE_GETADDRINFO */ |
d0d6b7c5 | 3522 | |
e690ca94 KS |
3523 | ai.ai_family = family; |
3524 | ai.ai_addr = (struct sockaddr *) &address_in; | |
3525 | ai.ai_addrlen = sizeof address_in; | |
3526 | ||
3527 | open_socket: | |
3528 | ||
dd2a17ab | 3529 | /* Do this in case we never enter the for-loop below. */ |
aed13378 | 3530 | count1 = SPECPDL_INDEX (); |
dd2a17ab | 3531 | s = -1; |
457a9bee | 3532 | |
dd2a17ab KS |
3533 | for (lres = res; lres; lres = lres->ai_next) |
3534 | { | |
6b61353c KH |
3535 | int optn, optbits; |
3536 | ||
4e9dd03b KS |
3537 | retry_connect: |
3538 | ||
dd2a17ab KS |
3539 | s = socket (lres->ai_family, lres->ai_socktype, lres->ai_protocol); |
3540 | if (s < 0) | |
3541 | { | |
3542 | xerrno = errno; | |
3543 | continue; | |
3544 | } | |
0f2ee0c1 | 3545 | |
e690ca94 KS |
3546 | #ifdef DATAGRAM_SOCKETS |
3547 | if (!is_server && socktype == SOCK_DGRAM) | |
3548 | break; | |
3549 | #endif /* DATAGRAM_SOCKETS */ | |
3550 | ||
dd2a17ab | 3551 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3552 | if (is_non_blocking_client) |
dd2a17ab KS |
3553 | { |
3554 | #ifdef O_NONBLOCK | |
3555 | ret = fcntl (s, F_SETFL, O_NONBLOCK); | |
3556 | #else | |
3557 | ret = fcntl (s, F_SETFL, O_NDELAY); | |
3558 | #endif | |
3559 | if (ret < 0) | |
3560 | { | |
3561 | xerrno = errno; | |
3562 | emacs_close (s); | |
3563 | s = -1; | |
3564 | continue; | |
3565 | } | |
3566 | } | |
3567 | #endif | |
177c0ea7 | 3568 | |
dd2a17ab | 3569 | /* Make us close S if quit. */ |
dd2a17ab KS |
3570 | record_unwind_protect (close_file_unwind, make_number (s)); |
3571 | ||
6b61353c KH |
3572 | /* Parse network options in the arg list. |
3573 | We simply ignore anything which isn't a known option (including other keywords). | |
63136da6 | 3574 | An error is signaled if setting a known option fails. */ |
6b61353c KH |
3575 | for (optn = optbits = 0; optn < nargs-1; optn += 2) |
3576 | optbits |= set_socket_option (s, args[optn], args[optn+1]); | |
3577 | ||
e690ca94 KS |
3578 | if (is_server) |
3579 | { | |
3580 | /* Configure as a server socket. */ | |
6b61353c KH |
3581 | |
3582 | /* SO_REUSEADDR = 1 is default for server sockets; must specify | |
3583 | explicit :reuseaddr key to override this. */ | |
e690ca94 KS |
3584 | #ifdef HAVE_LOCAL_SOCKETS |
3585 | if (family != AF_LOCAL) | |
3586 | #endif | |
6b61353c KH |
3587 | if (!(optbits & (1 << OPIX_REUSEADDR))) |
3588 | { | |
3589 | int optval = 1; | |
3590 | if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval)) | |
3591 | report_file_error ("Cannot set reuse option on server socket", Qnil); | |
3592 | } | |
177c0ea7 | 3593 | |
e690ca94 KS |
3594 | if (bind (s, lres->ai_addr, lres->ai_addrlen)) |
3595 | report_file_error ("Cannot bind server socket", Qnil); | |
3596 | ||
3597 | #ifdef HAVE_GETSOCKNAME | |
3598 | if (EQ (service, Qt)) | |
3599 | { | |
3600 | struct sockaddr_in sa1; | |
3601 | int len1 = sizeof (sa1); | |
3602 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) | |
3603 | { | |
3604 | ((struct sockaddr_in *)(lres->ai_addr))->sin_port = sa1.sin_port; | |
21bd170d | 3605 | service = make_number (ntohs (sa1.sin_port)); |
e690ca94 KS |
3606 | contact = Fplist_put (contact, QCservice, service); |
3607 | } | |
3608 | } | |
3609 | #endif | |
3610 | ||
6b61353c | 3611 | if (socktype == SOCK_STREAM && listen (s, backlog)) |
e690ca94 KS |
3612 | report_file_error ("Cannot listen on server socket", Qnil); |
3613 | ||
3614 | break; | |
3615 | } | |
3616 | ||
dd2a17ab KS |
3617 | immediate_quit = 1; |
3618 | QUIT; | |
3619 | ||
3620 | /* This turns off all alarm-based interrupts; the | |
3621 | bind_polling_period call above doesn't always turn all the | |
3622 | short-interval ones off, especially if interrupt_input is | |
3623 | set. | |
3624 | ||
3625 | It'd be nice to be able to control the connect timeout | |
177c0ea7 | 3626 | though. Would non-blocking connect calls be portable? |
dd2a17ab KS |
3627 | |
3628 | This used to be conditioned by HAVE_GETADDRINFO. Why? */ | |
3629 | ||
f40f9848 | 3630 | turn_on_atimers (0); |
dd2a17ab KS |
3631 | |
3632 | ret = connect (s, lres->ai_addr, lres->ai_addrlen); | |
3633 | xerrno = errno; | |
3634 | ||
f40f9848 | 3635 | turn_on_atimers (1); |
dd2a17ab KS |
3636 | |
3637 | if (ret == 0 || xerrno == EISCONN) | |
3638 | { | |
dd2a17ab KS |
3639 | /* The unwind-protect will be discarded afterwards. |
3640 | Likewise for immediate_quit. */ | |
3641 | break; | |
3642 | } | |
3643 | ||
3644 | #ifdef NON_BLOCKING_CONNECT | |
3645 | #ifdef EINPROGRESS | |
e690ca94 | 3646 | if (is_non_blocking_client && xerrno == EINPROGRESS) |
dd2a17ab KS |
3647 | break; |
3648 | #else | |
3649 | #ifdef EWOULDBLOCK | |
e690ca94 | 3650 | if (is_non_blocking_client && xerrno == EWOULDBLOCK) |
dd2a17ab KS |
3651 | break; |
3652 | #endif | |
3653 | #endif | |
3654 | #endif | |
e333e864 | 3655 | |
0f2ee0c1 RS |
3656 | immediate_quit = 0; |
3657 | ||
dd2a17ab | 3658 | /* Discard the unwind protect closing S. */ |
5684cd6e | 3659 | specpdl_ptr = specpdl + count1; |
68c45bf0 | 3660 | emacs_close (s); |
dd2a17ab | 3661 | s = -1; |
4e9dd03b KS |
3662 | |
3663 | if (xerrno == EINTR) | |
3664 | goto retry_connect; | |
dd2a17ab | 3665 | } |
457a9bee | 3666 | |
e690ca94 KS |
3667 | if (s >= 0) |
3668 | { | |
3669 | #ifdef DATAGRAM_SOCKETS | |
3670 | if (socktype == SOCK_DGRAM) | |
3671 | { | |
3672 | if (datagram_address[s].sa) | |
3673 | abort (); | |
3674 | datagram_address[s].sa = (struct sockaddr *) xmalloc (lres->ai_addrlen); | |
3675 | datagram_address[s].len = lres->ai_addrlen; | |
3676 | if (is_server) | |
3677 | { | |
3678 | Lisp_Object remote; | |
3679 | bzero (datagram_address[s].sa, lres->ai_addrlen); | |
3680 | if (remote = Fplist_get (contact, QCremote), !NILP (remote)) | |
3681 | { | |
3682 | int rfamily, rlen; | |
3683 | rlen = get_lisp_to_sockaddr_size (remote, &rfamily); | |
3684 | if (rfamily == lres->ai_family && rlen == lres->ai_addrlen) | |
3685 | conv_lisp_to_sockaddr (rfamily, remote, | |
3686 | datagram_address[s].sa, rlen); | |
3687 | } | |
3688 | } | |
3689 | else | |
3690 | bcopy (lres->ai_addr, datagram_address[s].sa, lres->ai_addrlen); | |
3691 | } | |
3692 | #endif | |
177c0ea7 | 3693 | contact = Fplist_put (contact, QCaddress, |
e690ca94 | 3694 | conv_sockaddr_to_lisp (lres->ai_addr, lres->ai_addrlen)); |
2185db04 KS |
3695 | #ifdef HAVE_GETSOCKNAME |
3696 | if (!is_server) | |
3697 | { | |
3698 | struct sockaddr_in sa1; | |
3699 | int len1 = sizeof (sa1); | |
3700 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) | |
3701 | contact = Fplist_put (contact, QClocal, | |
3702 | conv_sockaddr_to_lisp (&sa1, len1)); | |
3703 | } | |
3704 | #endif | |
e690ca94 KS |
3705 | } |
3706 | ||
54b3b62f YM |
3707 | immediate_quit = 0; |
3708 | ||
dd2a17ab | 3709 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 3710 | if (res != &ai) |
54b3b62f YM |
3711 | { |
3712 | BLOCK_INPUT; | |
3713 | freeaddrinfo (res); | |
3714 | UNBLOCK_INPUT; | |
3715 | } | |
dd2a17ab KS |
3716 | #endif |
3717 | ||
e690ca94 KS |
3718 | /* Discard the unwind protect for closing S, if any. */ |
3719 | specpdl_ptr = specpdl + count1; | |
3720 | ||
3721 | /* Unwind bind_polling_period and request_sigio. */ | |
3722 | unbind_to (count, Qnil); | |
3723 | ||
dd2a17ab KS |
3724 | if (s < 0) |
3725 | { | |
dd2a17ab KS |
3726 | /* If non-blocking got this far - and failed - assume non-blocking is |
3727 | not supported after all. This is probably a wrong assumption, but | |
e690ca94 KS |
3728 | the normal blocking calls to open-network-stream handles this error |
3729 | better. */ | |
3730 | if (is_non_blocking_client) | |
dd2a17ab | 3731 | return Qnil; |
dd2a17ab | 3732 | |
d0d6b7c5 | 3733 | errno = xerrno; |
e690ca94 KS |
3734 | if (is_server) |
3735 | report_file_error ("make server process failed", contact); | |
3736 | else | |
3737 | report_file_error ("make client process failed", contact); | |
d0d6b7c5 | 3738 | } |
44ade2e9 | 3739 | |
d0d6b7c5 | 3740 | inch = s; |
59f23005 | 3741 | outch = s; |
d0d6b7c5 JB |
3742 | |
3743 | if (!NILP (buffer)) | |
3744 | buffer = Fget_buffer_create (buffer); | |
3745 | proc = make_process (name); | |
3746 | ||
3747 | chan_process[inch] = proc; | |
3748 | ||
3749 | #ifdef O_NONBLOCK | |
3750 | fcntl (inch, F_SETFL, O_NONBLOCK); | |
3751 | #else | |
3752 | #ifdef O_NDELAY | |
3753 | fcntl (inch, F_SETFL, O_NDELAY); | |
3754 | #endif | |
3755 | #endif | |
3756 | ||
e690ca94 KS |
3757 | p = XPROCESS (proc); |
3758 | ||
3759 | p->childp = contact; | |
faa7db08 | 3760 | p->plist = Fcopy_sequence (Fplist_get (contact, QCplist)); |
d888760c | 3761 | p->type = Qnetwork; |
177c0ea7 | 3762 | |
e690ca94 KS |
3763 | p->buffer = buffer; |
3764 | p->sentinel = sentinel; | |
3765 | p->filter = filter; | |
3766 | p->log = Fplist_get (contact, QClog); | |
3767 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) | |
60f0fb11 | 3768 | p->kill_without_query = 1; |
e690ca94 KS |
3769 | if ((tem = Fplist_get (contact, QCstop), !NILP (tem))) |
3770 | p->command = Qt; | |
6bfd98e7 | 3771 | p->pid = 0; |
60f0fb11 SM |
3772 | p->infd = inch; |
3773 | p->outfd = outch; | |
e690ca94 KS |
3774 | if (is_server && socktype == SOCK_STREAM) |
3775 | p->status = Qlisten; | |
dd2a17ab | 3776 | |
f523e0c3 SM |
3777 | /* Make the process marker point into the process buffer (if any). */ |
3778 | if (BUFFERP (buffer)) | |
3779 | set_marker_both (p->mark, buffer, | |
3780 | BUF_ZV (XBUFFER (buffer)), | |
3781 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
3782 | ||
dd2a17ab | 3783 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3784 | if (is_non_blocking_client) |
dd2a17ab KS |
3785 | { |
3786 | /* We may get here if connect did succeed immediately. However, | |
3787 | in that case, we still need to signal this like a non-blocking | |
3788 | connection. */ | |
e690ca94 | 3789 | p->status = Qconnect; |
dd2a17ab KS |
3790 | if (!FD_ISSET (inch, &connect_wait_mask)) |
3791 | { | |
3792 | FD_SET (inch, &connect_wait_mask); | |
3793 | num_pending_connects++; | |
3794 | } | |
3795 | } | |
3796 | else | |
3797 | #endif | |
e690ca94 KS |
3798 | /* A server may have a client filter setting of Qt, but it must |
3799 | still listen for incoming connects unless it is stopped. */ | |
3800 | if ((!EQ (p->filter, Qt) && !EQ (p->command, Qt)) | |
3801 | || (EQ (p->status, Qlisten) && NILP (p->command))) | |
dd2a17ab KS |
3802 | { |
3803 | FD_SET (inch, &input_wait_mask); | |
3804 | FD_SET (inch, &non_keyboard_wait_mask); | |
3805 | } | |
3806 | ||
7d0e672e RS |
3807 | if (inch > max_process_desc) |
3808 | max_process_desc = inch; | |
d0d6b7c5 | 3809 | |
e690ca94 KS |
3810 | tem = Fplist_member (contact, QCcoding); |
3811 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
3812 | tem = Qnil; /* No error message (too late!). */ | |
3813 | ||
67918941 RS |
3814 | { |
3815 | /* Setup coding systems for communicating with the network stream. */ | |
3816 | struct gcpro gcpro1; | |
3817 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ | |
3818 | Lisp_Object coding_systems = Qt; | |
3819 | Lisp_Object args[5], val; | |
3820 | ||
e690ca94 | 3821 | if (!NILP (tem)) |
6b61353c KH |
3822 | { |
3823 | val = XCAR (XCDR (tem)); | |
3824 | if (CONSP (val)) | |
3825 | val = XCAR (val); | |
3826 | } | |
e690ca94 | 3827 | else if (!NILP (Vcoding_system_for_read)) |
67918941 | 3828 | val = Vcoding_system_for_read; |
41d03b9a GM |
3829 | else if ((!NILP (buffer) && NILP (XBUFFER (buffer)->enable_multibyte_characters)) |
3830 | || (NILP (buffer) && NILP (buffer_defaults.enable_multibyte_characters))) | |
67918941 RS |
3831 | /* We dare not decode end-of-line format by setting VAL to |
3832 | Qraw_text, because the existing Emacs Lisp libraries | |
3833 | assume that they receive bare code including a sequene of | |
3834 | CR LF. */ | |
3835 | val = Qnil; | |
3836 | else | |
3837 | { | |
991234f0 KS |
3838 | if (NILP (host) || NILP (service)) |
3839 | coding_systems = Qnil; | |
3840 | else | |
3841 | { | |
3842 | args[0] = Qopen_network_stream, args[1] = name, | |
3843 | args[2] = buffer, args[3] = host, args[4] = service; | |
3844 | GCPRO1 (proc); | |
3845 | coding_systems = Ffind_operation_coding_system (5, args); | |
3846 | UNGCPRO; | |
3847 | } | |
67918941 | 3848 | if (CONSP (coding_systems)) |
70949dac | 3849 | val = XCAR (coding_systems); |
67918941 | 3850 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3851 | val = XCAR (Vdefault_process_coding_system); |
67918941 RS |
3852 | else |
3853 | val = Qnil; | |
3854 | } | |
e690ca94 | 3855 | p->decode_coding_system = val; |
0fa1789e | 3856 | |
e690ca94 | 3857 | if (!NILP (tem)) |
6b61353c KH |
3858 | { |
3859 | val = XCAR (XCDR (tem)); | |
3860 | if (CONSP (val)) | |
3861 | val = XCDR (val); | |
3862 | } | |
e690ca94 | 3863 | else if (!NILP (Vcoding_system_for_write)) |
67918941 RS |
3864 | val = Vcoding_system_for_write; |
3865 | else if (NILP (current_buffer->enable_multibyte_characters)) | |
3866 | val = Qnil; | |
3867 | else | |
3868 | { | |
3869 | if (EQ (coding_systems, Qt)) | |
3870 | { | |
991234f0 KS |
3871 | if (NILP (host) || NILP (service)) |
3872 | coding_systems = Qnil; | |
3873 | else | |
3874 | { | |
3875 | args[0] = Qopen_network_stream, args[1] = name, | |
3876 | args[2] = buffer, args[3] = host, args[4] = service; | |
3877 | GCPRO1 (proc); | |
3878 | coding_systems = Ffind_operation_coding_system (5, args); | |
3879 | UNGCPRO; | |
3880 | } | |
67918941 RS |
3881 | } |
3882 | if (CONSP (coding_systems)) | |
70949dac | 3883 | val = XCDR (coding_systems); |
67918941 | 3884 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3885 | val = XCDR (Vdefault_process_coding_system); |
67918941 RS |
3886 | else |
3887 | val = Qnil; | |
3888 | } | |
e690ca94 | 3889 | p->encode_coding_system = val; |
67918941 | 3890 | } |
03f04413 | 3891 | setup_process_coding_systems (proc); |
0fa1789e | 3892 | |
e690ca94 | 3893 | p->decoding_buf = make_uninit_string (0); |
60f0fb11 | 3894 | p->decoding_carryover = 0; |
e690ca94 | 3895 | p->encoding_buf = make_uninit_string (0); |
0fa1789e | 3896 | |
e690ca94 | 3897 | p->inherit_coding_system_flag |
e6fca843 | 3898 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); |
52a1b894 | 3899 | |
d0d6b7c5 JB |
3900 | UNGCPRO; |
3901 | return proc; | |
3902 | } | |
3903 | #endif /* HAVE_SOCKETS */ | |
3904 | ||
6b61353c KH |
3905 | \f |
3906 | #if defined(HAVE_SOCKETS) && defined(HAVE_NET_IF_H) && defined(HAVE_SYS_IOCTL_H) | |
3907 | ||
3908 | #ifdef SIOCGIFCONF | |
3909 | DEFUN ("network-interface-list", Fnetwork_interface_list, Snetwork_interface_list, 0, 0, 0, | |
3910 | doc: /* Return an alist of all network interfaces and their network address. | |
3911 | Each element is a cons, the car of which is a string containing the | |
3912 | interface name, and the cdr is the network address in internal | |
3913 | format; see the description of ADDRESS in `make-network-process'. */) | |
3914 | () | |
3915 | { | |
3916 | struct ifconf ifconf; | |
3917 | struct ifreq *ifreqs = NULL; | |
3918 | int ifaces = 0; | |
3919 | int buf_size, s; | |
3920 | Lisp_Object res; | |
3921 | ||
3922 | s = socket (AF_INET, SOCK_STREAM, 0); | |
3923 | if (s < 0) | |
3924 | return Qnil; | |
3925 | ||
3926 | again: | |
3927 | ifaces += 25; | |
3928 | buf_size = ifaces * sizeof(ifreqs[0]); | |
3929 | ifreqs = (struct ifreq *)xrealloc(ifreqs, buf_size); | |
3930 | if (!ifreqs) | |
3931 | { | |
3932 | close (s); | |
3933 | return Qnil; | |
3934 | } | |
3935 | ||
3936 | ifconf.ifc_len = buf_size; | |
3937 | ifconf.ifc_req = ifreqs; | |
3938 | if (ioctl (s, SIOCGIFCONF, &ifconf)) | |
3939 | { | |
3940 | close (s); | |
3941 | return Qnil; | |
3942 | } | |
3943 | ||
3944 | if (ifconf.ifc_len == buf_size) | |
3945 | goto again; | |
3946 | ||
3947 | close (s); | |
3948 | ifaces = ifconf.ifc_len / sizeof (ifreqs[0]); | |
3949 | ||
3950 | res = Qnil; | |
3951 | while (--ifaces >= 0) | |
3952 | { | |
3953 | struct ifreq *ifq = &ifreqs[ifaces]; | |
3954 | char namebuf[sizeof (ifq->ifr_name) + 1]; | |
3955 | if (ifq->ifr_addr.sa_family != AF_INET) | |
3956 | continue; | |
3957 | bcopy (ifq->ifr_name, namebuf, sizeof (ifq->ifr_name)); | |
3958 | namebuf[sizeof (ifq->ifr_name)] = 0; | |
3959 | res = Fcons (Fcons (build_string (namebuf), | |
3960 | conv_sockaddr_to_lisp (&ifq->ifr_addr, | |
3961 | sizeof (struct sockaddr))), | |
3962 | res); | |
3963 | } | |
3964 | ||
3965 | return res; | |
3966 | } | |
3967 | #endif /* SIOCGIFCONF */ | |
3968 | ||
3969 | #if defined(SIOCGIFADDR) || defined(SIOCGIFHWADDR) || defined(SIOCGIFFLAGS) | |
3970 | ||
3971 | struct ifflag_def { | |
3972 | int flag_bit; | |
3973 | char *flag_sym; | |
3974 | }; | |
3975 | ||
3976 | static struct ifflag_def ifflag_table[] = { | |
3977 | #ifdef IFF_UP | |
3978 | { IFF_UP, "up" }, | |
3979 | #endif | |
3980 | #ifdef IFF_BROADCAST | |
3981 | { IFF_BROADCAST, "broadcast" }, | |
3982 | #endif | |
3983 | #ifdef IFF_DEBUG | |
3984 | { IFF_DEBUG, "debug" }, | |
3985 | #endif | |
3986 | #ifdef IFF_LOOPBACK | |
3987 | { IFF_LOOPBACK, "loopback" }, | |
3988 | #endif | |
3989 | #ifdef IFF_POINTOPOINT | |
3990 | { IFF_POINTOPOINT, "pointopoint" }, | |
3991 | #endif | |
3992 | #ifdef IFF_RUNNING | |
3993 | { IFF_RUNNING, "running" }, | |
3994 | #endif | |
3995 | #ifdef IFF_NOARP | |
3996 | { IFF_NOARP, "noarp" }, | |
3997 | #endif | |
3998 | #ifdef IFF_PROMISC | |
3999 | { IFF_PROMISC, "promisc" }, | |
4000 | #endif | |
4001 | #ifdef IFF_NOTRAILERS | |
4002 | { IFF_NOTRAILERS, "notrailers" }, | |
4003 | #endif | |
4004 | #ifdef IFF_ALLMULTI | |
4005 | { IFF_ALLMULTI, "allmulti" }, | |
4006 | #endif | |
4007 | #ifdef IFF_MASTER | |
4008 | { IFF_MASTER, "master" }, | |
4009 | #endif | |
4010 | #ifdef IFF_SLAVE | |
4011 | { IFF_SLAVE, "slave" }, | |
4012 | #endif | |
4013 | #ifdef IFF_MULTICAST | |
4014 | { IFF_MULTICAST, "multicast" }, | |
4015 | #endif | |
4016 | #ifdef IFF_PORTSEL | |
4017 | { IFF_PORTSEL, "portsel" }, | |
4018 | #endif | |
4019 | #ifdef IFF_AUTOMEDIA | |
4020 | { IFF_AUTOMEDIA, "automedia" }, | |
4021 | #endif | |
4022 | #ifdef IFF_DYNAMIC | |
4023 | { IFF_DYNAMIC, "dynamic" }, | |
e1652a86 | 4024 | #endif |
2026418c YM |
4025 | #ifdef IFF_OACTIVE |
4026 | { IFF_OACTIVE, "oactive" }, /* OpenBSD: transmission in progress */ | |
e1652a86 KS |
4027 | #endif |
4028 | #ifdef IFF_SIMPLEX | |
4029 | { IFF_SIMPLEX, "simplex" }, /* OpenBSD: can't hear own transmissions */ | |
4030 | #endif | |
4031 | #ifdef IFF_LINK0 | |
4032 | { IFF_LINK0, "link0" }, /* OpenBSD: per link layer defined bit */ | |
4033 | #endif | |
4034 | #ifdef IFF_LINK1 | |
4035 | { IFF_LINK1, "link1" }, /* OpenBSD: per link layer defined bit */ | |
4036 | #endif | |
4037 | #ifdef IFF_LINK2 | |
4038 | { IFF_LINK2, "link2" }, /* OpenBSD: per link layer defined bit */ | |
6b61353c KH |
4039 | #endif |
4040 | { 0, 0 } | |
4041 | }; | |
4042 | ||
4043 | DEFUN ("network-interface-info", Fnetwork_interface_info, Snetwork_interface_info, 1, 1, 0, | |
4044 | doc: /* Return information about network interface named IFNAME. | |
4045 | The return value is a list (ADDR BCAST NETMASK HWADDR FLAGS), | |
4046 | where ADDR is the layer 3 address, BCAST is the layer 3 broadcast address, | |
4047 | NETMASK is the layer 3 network mask, HWADDR is the layer 2 addres, and | |
4048 | FLAGS is the current flags of the interface. */) | |
4049 | (ifname) | |
4050 | Lisp_Object ifname; | |
4051 | { | |
4052 | struct ifreq rq; | |
4053 | Lisp_Object res = Qnil; | |
4054 | Lisp_Object elt; | |
4055 | int s; | |
4056 | int any = 0; | |
4057 | ||
4058 | CHECK_STRING (ifname); | |
4059 | ||
4060 | bzero (rq.ifr_name, sizeof rq.ifr_name); | |
4061 | strncpy (rq.ifr_name, SDATA (ifname), sizeof (rq.ifr_name)); | |
4062 | ||
4063 | s = socket (AF_INET, SOCK_STREAM, 0); | |
4064 | if (s < 0) | |
4065 | return Qnil; | |
4066 | ||
4067 | elt = Qnil; | |
4068 | #if defined(SIOCGIFFLAGS) && defined(HAVE_STRUCT_IFREQ_IFR_FLAGS) | |
4069 | if (ioctl (s, SIOCGIFFLAGS, &rq) == 0) | |
4070 | { | |
4071 | int flags = rq.ifr_flags; | |
4072 | struct ifflag_def *fp; | |
4073 | int fnum; | |
4074 | ||
4075 | any++; | |
82a80058 | 4076 | for (fp = ifflag_table; flags != 0 && fp->flag_sym; fp++) |
6b61353c KH |
4077 | { |
4078 | if (flags & fp->flag_bit) | |
4079 | { | |
4080 | elt = Fcons (intern (fp->flag_sym), elt); | |
4081 | flags -= fp->flag_bit; | |
4082 | } | |
4083 | } | |
4084 | for (fnum = 0; flags && fnum < 32; fnum++) | |
4085 | { | |
4086 | if (flags & (1 << fnum)) | |
4087 | { | |
4088 | elt = Fcons (make_number (fnum), elt); | |
4089 | } | |
4090 | } | |
4091 | } | |
4092 | #endif | |
4093 | res = Fcons (elt, res); | |
4094 | ||
4095 | elt = Qnil; | |
4096 | #if defined(SIOCGIFHWADDR) && defined(HAVE_STRUCT_IFREQ_IFR_HWADDR) | |
4097 | if (ioctl (s, SIOCGIFHWADDR, &rq) == 0) | |
4098 | { | |
4099 | Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil); | |
4100 | register struct Lisp_Vector *p = XVECTOR (hwaddr); | |
4101 | int n; | |
4102 | ||
4103 | any++; | |
4104 | for (n = 0; n < 6; n++) | |
4105 | p->contents[n] = make_number (((unsigned char *)&rq.ifr_hwaddr.sa_data[0])[n]); | |
4106 | elt = Fcons (make_number (rq.ifr_hwaddr.sa_family), hwaddr); | |
4107 | } | |
4108 | #endif | |
4109 | res = Fcons (elt, res); | |
4110 | ||
4111 | elt = Qnil; | |
2026418c | 4112 | #if defined(SIOCGIFNETMASK) && (defined(HAVE_STRUCT_IFREQ_IFR_NETMASK) || defined(HAVE_STRUCT_IFREQ_IFR_ADDR)) |
6b61353c KH |
4113 | if (ioctl (s, SIOCGIFNETMASK, &rq) == 0) |
4114 | { | |
4115 | any++; | |
2026418c | 4116 | #ifdef HAVE_STRUCT_IFREQ_IFR_NETMASK |
6b61353c | 4117 | elt = conv_sockaddr_to_lisp (&rq.ifr_netmask, sizeof (rq.ifr_netmask)); |
2026418c YM |
4118 | #else |
4119 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); | |
4120 | #endif | |
6b61353c KH |
4121 | } |
4122 | #endif | |
4123 | res = Fcons (elt, res); | |
4124 | ||
4125 | elt = Qnil; | |
4126 | #if defined(SIOCGIFBRDADDR) && defined(HAVE_STRUCT_IFREQ_IFR_BROADADDR) | |
4127 | if (ioctl (s, SIOCGIFBRDADDR, &rq) == 0) | |
4128 | { | |
4129 | any++; | |
4130 | elt = conv_sockaddr_to_lisp (&rq.ifr_broadaddr, sizeof (rq.ifr_broadaddr)); | |
4131 | } | |
4132 | #endif | |
4133 | res = Fcons (elt, res); | |
4134 | ||
4135 | elt = Qnil; | |
4136 | #if defined(SIOCGIFADDR) && defined(HAVE_STRUCT_IFREQ_IFR_ADDR) | |
4137 | if (ioctl (s, SIOCGIFADDR, &rq) == 0) | |
4138 | { | |
4139 | any++; | |
4140 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); | |
4141 | } | |
4142 | #endif | |
4143 | res = Fcons (elt, res); | |
4144 | ||
4145 | close (s); | |
4146 | ||
4147 | return any ? res : Qnil; | |
4148 | } | |
4149 | #endif | |
4150 | #endif /* HAVE_SOCKETS */ | |
4151 | ||
04391069 RS |
4152 | /* Turn off input and output for process PROC. */ |
4153 | ||
6b53bb85 | 4154 | void |
d0d6b7c5 JB |
4155 | deactivate_process (proc) |
4156 | Lisp_Object proc; | |
4157 | { | |
4158 | register int inchannel, outchannel; | |
4159 | register struct Lisp_Process *p = XPROCESS (proc); | |
4160 | ||
60f0fb11 SM |
4161 | inchannel = p->infd; |
4162 | outchannel = p->outfd; | |
d0d6b7c5 | 4163 | |
6b61353c | 4164 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 4165 | if (p->read_output_delay > 0) |
6b61353c KH |
4166 | { |
4167 | if (--process_output_delay_count < 0) | |
4168 | process_output_delay_count = 0; | |
60f0fb11 SM |
4169 | p->read_output_delay = 0; |
4170 | p->read_output_skip = 0; | |
6b61353c KH |
4171 | } |
4172 | #endif | |
f3d9532b | 4173 | |
a9f2c884 | 4174 | if (inchannel >= 0) |
d0d6b7c5 JB |
4175 | { |
4176 | /* Beware SIGCHLD hereabouts. */ | |
4177 | flush_pending_output (inchannel); | |
68c45bf0 | 4178 | emacs_close (inchannel); |
a9f2c884 | 4179 | if (outchannel >= 0 && outchannel != inchannel) |
68c45bf0 | 4180 | emacs_close (outchannel); |
d0d6b7c5 | 4181 | |
60f0fb11 SM |
4182 | p->infd = -1; |
4183 | p->outfd = -1; | |
e690ca94 KS |
4184 | #ifdef DATAGRAM_SOCKETS |
4185 | if (DATAGRAM_CHAN_P (inchannel)) | |
4186 | { | |
4187 | xfree (datagram_address[inchannel].sa); | |
4188 | datagram_address[inchannel].sa = 0; | |
4189 | datagram_address[inchannel].len = 0; | |
4190 | } | |
4191 | #endif | |
d0d6b7c5 JB |
4192 | chan_process[inchannel] = Qnil; |
4193 | FD_CLR (inchannel, &input_wait_mask); | |
a69281ff | 4194 | FD_CLR (inchannel, &non_keyboard_wait_mask); |
bad49fc7 | 4195 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
4196 | if (FD_ISSET (inchannel, &connect_wait_mask)) |
4197 | { | |
4198 | FD_CLR (inchannel, &connect_wait_mask); | |
4199 | if (--num_pending_connects < 0) | |
4200 | abort (); | |
4201 | } | |
bad49fc7 | 4202 | #endif |
7d0e672e RS |
4203 | if (inchannel == max_process_desc) |
4204 | { | |
4205 | int i; | |
4206 | /* We just closed the highest-numbered process input descriptor, | |
4207 | so recompute the highest-numbered one now. */ | |
4208 | max_process_desc = 0; | |
4209 | for (i = 0; i < MAXDESC; i++) | |
4210 | if (!NILP (chan_process[i])) | |
4211 | max_process_desc = i; | |
4212 | } | |
d0d6b7c5 JB |
4213 | } |
4214 | } | |
4215 | ||
4216 | /* Close all descriptors currently in use for communication | |
4217 | with subprocess. This is used in a newly-forked subprocess | |
4218 | to get rid of irrelevant descriptors. */ | |
4219 | ||
6b53bb85 | 4220 | void |
d0d6b7c5 JB |
4221 | close_process_descs () |
4222 | { | |
e98d950b | 4223 | #ifndef WINDOWSNT |
d0d6b7c5 JB |
4224 | int i; |
4225 | for (i = 0; i < MAXDESC; i++) | |
4226 | { | |
4227 | Lisp_Object process; | |
4228 | process = chan_process[i]; | |
4229 | if (!NILP (process)) | |
4230 | { | |
60f0fb11 SM |
4231 | int in = XPROCESS (process)->infd; |
4232 | int out = XPROCESS (process)->outfd; | |
a9f2c884 | 4233 | if (in >= 0) |
68c45bf0 | 4234 | emacs_close (in); |
a9f2c884 | 4235 | if (out >= 0 && in != out) |
68c45bf0 | 4236 | emacs_close (out); |
d0d6b7c5 JB |
4237 | } |
4238 | } | |
e98d950b | 4239 | #endif |
d0d6b7c5 JB |
4240 | } |
4241 | \f | |
4242 | DEFUN ("accept-process-output", Faccept_process_output, Saccept_process_output, | |
107ed38d | 4243 | 0, 4, 0, |
fdb82f93 PJ |
4244 | doc: /* Allow any pending output from subprocesses to be read by Emacs. |
4245 | It is read into the process' buffers or given to their filter functions. | |
4246 | Non-nil arg PROCESS means do not return until some output has been received | |
4247 | from PROCESS. | |
5088da42 | 4248 | |
2a7bb882 MR |
4249 | Non-nil second arg SECONDS and third arg MILLISEC are number of seconds |
4250 | and milliseconds to wait; return after that much time whether or not | |
4251 | there is any subprocess output. If SECONDS is a floating point number, | |
5088da42 | 4252 | it specifies a fractional number of seconds to wait. |
891bd142 | 4253 | The MILLISEC argument is obsolete and should be avoided. |
5088da42 | 4254 | |
107ed38d KS |
4255 | If optional fourth arg JUST-THIS-ONE is non-nil, only accept output |
4256 | from PROCESS, suspending reading output from other processes. | |
4257 | If JUST-THIS-ONE is an integer, don't run any timers either. | |
e0f24100 | 4258 | Return non-nil if we received any output before the timeout expired. */) |
5088da42 KS |
4259 | (process, seconds, millisec, just_this_one) |
4260 | register Lisp_Object process, seconds, millisec, just_this_one; | |
d0d6b7c5 | 4261 | { |
5088da42 | 4262 | int secs, usecs = 0; |
d0d6b7c5 | 4263 | |
0748d150 | 4264 | if (! NILP (process)) |
b7826503 | 4265 | CHECK_PROCESS (process); |
107ed38d KS |
4266 | else |
4267 | just_this_one = Qnil; | |
0748d150 | 4268 | |
891bd142 SM |
4269 | if (!NILP (millisec)) |
4270 | { /* Obsolete calling convention using integers rather than floats. */ | |
4271 | CHECK_NUMBER (millisec); | |
4272 | if (NILP (seconds)) | |
4273 | seconds = make_float (XINT (millisec) / 1000.0); | |
4274 | else | |
4275 | { | |
4276 | CHECK_NUMBER (seconds); | |
4277 | seconds = make_float (XINT (millisec) / 1000.0 + XINT (seconds)); | |
4278 | } | |
4279 | } | |
4280 | ||
5088da42 | 4281 | if (!NILP (seconds)) |
d0d6b7c5 | 4282 | { |
5088da42 KS |
4283 | if (INTEGERP (seconds)) |
4284 | secs = XINT (seconds); | |
4285 | else if (FLOATP (seconds)) | |
4286 | { | |
4287 | double timeout = XFLOAT_DATA (seconds); | |
4288 | secs = (int) timeout; | |
4289 | usecs = (int) ((timeout - (double) secs) * 1000000); | |
4290 | } | |
4291 | else | |
4292 | wrong_type_argument (Qnumberp, seconds); | |
d0d6b7c5 | 4293 | |
5088da42 KS |
4294 | if (secs < 0 || (secs == 0 && usecs == 0)) |
4295 | secs = -1, usecs = 0; | |
d0d6b7c5 JB |
4296 | } |
4297 | else | |
5088da42 | 4298 | secs = NILP (process) ? -1 : 0; |
d0d6b7c5 JB |
4299 | |
4300 | return | |
5088da42 | 4301 | (wait_reading_process_output (secs, usecs, 0, 0, |
214d6069 KS |
4302 | Qnil, |
4303 | !NILP (process) ? XPROCESS (process) : NULL, | |
4304 | NILP (just_this_one) ? 0 : | |
4305 | !INTEGERP (just_this_one) ? 1 : -1) | |
d0d6b7c5 JB |
4306 | ? Qt : Qnil); |
4307 | } | |
4308 | ||
e690ca94 KS |
4309 | /* Accept a connection for server process SERVER on CHANNEL. */ |
4310 | ||
4311 | static int connect_counter = 0; | |
4312 | ||
4313 | static void | |
4314 | server_accept_connection (server, channel) | |
4315 | Lisp_Object server; | |
4316 | int channel; | |
4317 | { | |
4318 | Lisp_Object proc, caller, name, buffer; | |
4319 | Lisp_Object contact, host, service; | |
4320 | struct Lisp_Process *ps= XPROCESS (server); | |
4321 | struct Lisp_Process *p; | |
4322 | int s; | |
4323 | union u_sockaddr { | |
4324 | struct sockaddr sa; | |
4325 | struct sockaddr_in in; | |
e1652a86 KS |
4326 | #ifdef AF_INET6 |
4327 | struct sockaddr_in6 in6; | |
4328 | #endif | |
e690ca94 KS |
4329 | #ifdef HAVE_LOCAL_SOCKETS |
4330 | struct sockaddr_un un; | |
4331 | #endif | |
4332 | } saddr; | |
4333 | int len = sizeof saddr; | |
4334 | ||
4335 | s = accept (channel, &saddr.sa, &len); | |
4336 | ||
4337 | if (s < 0) | |
4338 | { | |
4339 | int code = errno; | |
4340 | ||
4341 | if (code == EAGAIN) | |
4342 | return; | |
4343 | #ifdef EWOULDBLOCK | |
4344 | if (code == EWOULDBLOCK) | |
4345 | return; | |
4346 | #endif | |
4347 | ||
4348 | if (!NILP (ps->log)) | |
4349 | call3 (ps->log, server, Qnil, | |
4350 | concat3 (build_string ("accept failed with code"), | |
4351 | Fnumber_to_string (make_number (code)), | |
4352 | build_string ("\n"))); | |
4353 | return; | |
4354 | } | |
4355 | ||
4356 | connect_counter++; | |
4357 | ||
4358 | /* Setup a new process to handle the connection. */ | |
4359 | ||
4360 | /* Generate a unique identification of the caller, and build contact | |
4361 | information for this process. */ | |
4362 | host = Qt; | |
4363 | service = Qnil; | |
4364 | switch (saddr.sa.sa_family) | |
4365 | { | |
4366 | case AF_INET: | |
4367 | { | |
4368 | Lisp_Object args[5]; | |
4369 | unsigned char *ip = (unsigned char *)&saddr.in.sin_addr.s_addr; | |
4370 | args[0] = build_string ("%d.%d.%d.%d"); | |
4371 | args[1] = make_number (*ip++); | |
4372 | args[2] = make_number (*ip++); | |
4373 | args[3] = make_number (*ip++); | |
4374 | args[4] = make_number (*ip++); | |
4375 | host = Fformat (5, args); | |
4376 | service = make_number (ntohs (saddr.in.sin_port)); | |
4377 | ||
4378 | args[0] = build_string (" <%s:%d>"); | |
4379 | args[1] = host; | |
4380 | args[2] = service; | |
4381 | caller = Fformat (3, args); | |
4382 | } | |
4383 | break; | |
4384 | ||
e1652a86 KS |
4385 | #ifdef AF_INET6 |
4386 | case AF_INET6: | |
4387 | { | |
4388 | Lisp_Object args[9]; | |
4389 | uint16_t *ip6 = (uint16_t *)&saddr.in6.sin6_addr; | |
4390 | int i; | |
4391 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
4392 | for (i = 0; i < 8; i++) | |
4393 | args[i+1] = make_number (ntohs(ip6[i])); | |
4394 | host = Fformat (9, args); | |
4395 | service = make_number (ntohs (saddr.in.sin_port)); | |
4396 | ||
4397 | args[0] = build_string (" <[%s]:%d>"); | |
4398 | args[1] = host; | |
4399 | args[2] = service; | |
4400 | caller = Fformat (3, args); | |
4401 | } | |
4402 | break; | |
4403 | #endif | |
4404 | ||
e690ca94 KS |
4405 | #ifdef HAVE_LOCAL_SOCKETS |
4406 | case AF_LOCAL: | |
4407 | #endif | |
4408 | default: | |
4409 | caller = Fnumber_to_string (make_number (connect_counter)); | |
eef60308 | 4410 | caller = concat3 (build_string (" <"), caller, build_string (">")); |
e690ca94 KS |
4411 | break; |
4412 | } | |
4413 | ||
4414 | /* Create a new buffer name for this process if it doesn't have a | |
4415 | filter. The new buffer name is based on the buffer name or | |
4416 | process name of the server process concatenated with the caller | |
4417 | identification. */ | |
4418 | ||
4419 | if (!NILP (ps->filter) && !EQ (ps->filter, Qt)) | |
4420 | buffer = Qnil; | |
4421 | else | |
4422 | { | |
4423 | buffer = ps->buffer; | |
4424 | if (!NILP (buffer)) | |
4425 | buffer = Fbuffer_name (buffer); | |
4426 | else | |
4427 | buffer = ps->name; | |
4428 | if (!NILP (buffer)) | |
4429 | { | |
4430 | buffer = concat2 (buffer, caller); | |
4431 | buffer = Fget_buffer_create (buffer); | |
4432 | } | |
4433 | } | |
4434 | ||
4435 | /* Generate a unique name for the new server process. Combine the | |
4436 | server process name with the caller identification. */ | |
4437 | ||
4438 | name = concat2 (ps->name, caller); | |
4439 | proc = make_process (name); | |
4440 | ||
4441 | chan_process[s] = proc; | |
4442 | ||
4443 | #ifdef O_NONBLOCK | |
4444 | fcntl (s, F_SETFL, O_NONBLOCK); | |
4445 | #else | |
4446 | #ifdef O_NDELAY | |
4447 | fcntl (s, F_SETFL, O_NDELAY); | |
4448 | #endif | |
4449 | #endif | |
4450 | ||
4451 | p = XPROCESS (proc); | |
4452 | ||
4453 | /* Build new contact information for this setup. */ | |
4454 | contact = Fcopy_sequence (ps->childp); | |
4455 | contact = Fplist_put (contact, QCserver, Qnil); | |
4456 | contact = Fplist_put (contact, QChost, host); | |
4457 | if (!NILP (service)) | |
4458 | contact = Fplist_put (contact, QCservice, service); | |
177c0ea7 | 4459 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
4460 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4461 | #ifdef HAVE_GETSOCKNAME | |
4462 | len = sizeof saddr; | |
2185db04 | 4463 | if (getsockname (s, &saddr.sa, &len) == 0) |
177c0ea7 | 4464 | contact = Fplist_put (contact, QClocal, |
e690ca94 KS |
4465 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4466 | #endif | |
4467 | ||
4468 | p->childp = contact; | |
faa7db08 | 4469 | p->plist = Fcopy_sequence (ps->plist); |
d888760c | 4470 | p->type = Qnetwork; |
ac4a7584 | 4471 | |
e690ca94 KS |
4472 | p->buffer = buffer; |
4473 | p->sentinel = ps->sentinel; | |
4474 | p->filter = ps->filter; | |
4475 | p->command = Qnil; | |
6bfd98e7 | 4476 | p->pid = 0; |
60f0fb11 SM |
4477 | p->infd = s; |
4478 | p->outfd = s; | |
e690ca94 KS |
4479 | p->status = Qrun; |
4480 | ||
4481 | /* Client processes for accepted connections are not stopped initially. */ | |
4482 | if (!EQ (p->filter, Qt)) | |
4483 | { | |
4484 | FD_SET (s, &input_wait_mask); | |
4485 | FD_SET (s, &non_keyboard_wait_mask); | |
4486 | } | |
4487 | ||
4488 | if (s > max_process_desc) | |
4489 | max_process_desc = s; | |
4490 | ||
177c0ea7 | 4491 | /* Setup coding system for new process based on server process. |
e690ca94 KS |
4492 | This seems to be the proper thing to do, as the coding system |
4493 | of the new process should reflect the settings at the time the | |
4494 | server socket was opened; not the current settings. */ | |
4495 | ||
4496 | p->decode_coding_system = ps->decode_coding_system; | |
4497 | p->encode_coding_system = ps->encode_coding_system; | |
03f04413 | 4498 | setup_process_coding_systems (proc); |
e690ca94 KS |
4499 | |
4500 | p->decoding_buf = make_uninit_string (0); | |
60f0fb11 | 4501 | p->decoding_carryover = 0; |
e690ca94 | 4502 | p->encoding_buf = make_uninit_string (0); |
e690ca94 KS |
4503 | |
4504 | p->inherit_coding_system_flag | |
60f0fb11 | 4505 | = (NILP (buffer) ? 0 : ps->inherit_coding_system_flag); |
e690ca94 KS |
4506 | |
4507 | if (!NILP (ps->log)) | |
4508 | call3 (ps->log, server, proc, | |
4509 | concat3 (build_string ("accept from "), | |
4510 | (STRINGP (host) ? host : build_string ("-")), | |
4511 | build_string ("\n"))); | |
4512 | ||
bed9664a | 4513 | if (!NILP (p->sentinel)) |
177c0ea7 | 4514 | exec_sentinel (proc, |
e690ca94 KS |
4515 | concat3 (build_string ("open from "), |
4516 | (STRINGP (host) ? host : build_string ("-")), | |
4517 | build_string ("\n"))); | |
4518 | } | |
4519 | ||
d0d6b7c5 JB |
4520 | /* This variable is different from waiting_for_input in keyboard.c. |
4521 | It is used to communicate to a lisp process-filter/sentinel (via the | |
f3d9532b | 4522 | function Fwaiting_for_user_input_p below) whether Emacs was waiting |
d0d6b7c5 JB |
4523 | for user-input when that process-filter was called. |
4524 | waiting_for_input cannot be used as that is by definition 0 when | |
d430ee71 RS |
4525 | lisp code is being evalled. |
4526 | This is also used in record_asynch_buffer_change. | |
4527 | For that purpose, this must be 0 | |
214d6069 | 4528 | when not inside wait_reading_process_output. */ |
d0d6b7c5 JB |
4529 | static int waiting_for_user_input_p; |
4530 | ||
2beb96f9 KS |
4531 | static Lisp_Object |
4532 | wait_reading_process_output_unwind (data) | |
4533 | Lisp_Object data; | |
4534 | { | |
4535 | waiting_for_user_input_p = XINT (data); | |
4536 | return Qnil; | |
4537 | } | |
4538 | ||
c573ae8e | 4539 | /* This is here so breakpoints can be put on it. */ |
dfcf069d | 4540 | static void |
214d6069 | 4541 | wait_reading_process_output_1 () |
c573ae8e RS |
4542 | { |
4543 | } | |
4544 | ||
e1e541bd KS |
4545 | /* Use a wrapper around select to work around a bug in gdb 5.3. |
4546 | Normally, the wrapper is optimzed away by inlining. | |
4547 | ||
4548 | If emacs is stopped inside select, the gdb backtrace doesn't | |
4549 | show the function which called select, so it is practically | |
4550 | impossible to step through wait_reading_process_output. */ | |
4551 | ||
4552 | #ifndef select | |
4553 | static INLINE int | |
4554 | select_wrapper (n, rfd, wfd, xfd, tmo) | |
4555 | int n; | |
4556 | SELECT_TYPE *rfd, *wfd, *xfd; | |
4557 | EMACS_TIME *tmo; | |
4558 | { | |
4559 | return select (n, rfd, wfd, xfd, tmo); | |
4560 | } | |
4561 | #define select select_wrapper | |
4562 | #endif | |
4563 | ||
d0d6b7c5 JB |
4564 | /* Read and dispose of subprocess output while waiting for timeout to |
4565 | elapse and/or keyboard input to be available. | |
4566 | ||
de6fd4b9 | 4567 | TIME_LIMIT is: |
d0d6b7c5 JB |
4568 | timeout in seconds, or |
4569 | zero for no limit, or | |
4570 | -1 means gobble data immediately available but don't wait for any. | |
4571 | ||
de6fd4b9 RS |
4572 | MICROSECS is: |
4573 | an additional duration to wait, measured in microseconds. | |
4574 | If this is nonzero and time_limit is 0, then the timeout | |
4575 | consists of MICROSECS only. | |
6e4f3667 | 4576 | |
de6fd4b9 | 4577 | READ_KBD is a lisp value: |
d0d6b7c5 JB |
4578 | 0 to ignore keyboard input, or |
4579 | 1 to return when input is available, or | |
84aa3ace | 4580 | -1 meaning caller will actually read the input, so don't throw to |
d0d6b7c5 | 4581 | the quit handler, or |
d0d6b7c5 | 4582 | |
de6fd4b9 | 4583 | DO_DISPLAY != 0 means redisplay should be done to show subprocess |
107ed38d | 4584 | output that arrives. |
d0d6b7c5 | 4585 | |
b89a415a KS |
4586 | If WAIT_FOR_CELL is a cons cell, wait until its car is non-nil |
4587 | (and gobble terminal input into the buffer if any arrives). | |
d0d6b7c5 | 4588 | |
b89a415a | 4589 | If WAIT_PROC is specified, wait until something arrives from that |
e0f24100 | 4590 | process. The return value is true if we read some input from |
b89a415a KS |
4591 | that process. |
4592 | ||
4593 | If JUST_WAIT_PROC is non-nil, handle only output from WAIT_PROC | |
4594 | (suspending output from other processes). A negative value | |
4595 | means don't run any timers either. | |
4596 | ||
e0f24100 | 4597 | If WAIT_PROC is specified, then the function returns true if we |
b89a415a | 4598 | received input from that process before the timeout elapsed. |
e0f24100 | 4599 | Otherwise, return true if we received input from any process. */ |
d0d6b7c5 | 4600 | |
dfcf069d | 4601 | int |
214d6069 KS |
4602 | wait_reading_process_output (time_limit, microsecs, read_kbd, do_display, |
4603 | wait_for_cell, wait_proc, just_wait_proc) | |
b89a415a KS |
4604 | int time_limit, microsecs, read_kbd, do_display; |
4605 | Lisp_Object wait_for_cell; | |
4606 | struct Lisp_Process *wait_proc; | |
4607 | int just_wait_proc; | |
d0d6b7c5 | 4608 | { |
41d03b9a | 4609 | register int channel, nfds; |
855448dc | 4610 | SELECT_TYPE Available; |
bad49fc7 | 4611 | #ifdef NON_BLOCKING_CONNECT |
855448dc | 4612 | SELECT_TYPE Connecting; |
bad49fc7 KS |
4613 | int check_connect; |
4614 | #endif | |
4615 | int check_delay, no_avail; | |
d0d6b7c5 JB |
4616 | int xerrno; |
4617 | Lisp_Object proc; | |
41d03b9a | 4618 | EMACS_TIME timeout, end_time; |
a9f2c884 | 4619 | int wait_channel = -1; |
d0d6b7c5 | 4620 | int got_some_input = 0; |
2beb96f9 | 4621 | int count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
4622 | |
4623 | FD_ZERO (&Available); | |
bad49fc7 | 4624 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab | 4625 | FD_ZERO (&Connecting); |
bad49fc7 | 4626 | #endif |
d0d6b7c5 | 4627 | |
b89a415a KS |
4628 | /* If wait_proc is a process to watch, set wait_channel accordingly. */ |
4629 | if (wait_proc != NULL) | |
60f0fb11 | 4630 | wait_channel = wait_proc->infd; |
84aa3ace | 4631 | |
2beb96f9 KS |
4632 | record_unwind_protect (wait_reading_process_output_unwind, |
4633 | make_number (waiting_for_user_input_p)); | |
b89a415a | 4634 | waiting_for_user_input_p = read_kbd; |
d0d6b7c5 JB |
4635 | |
4636 | /* Since we may need to wait several times, | |
4637 | compute the absolute time to return at. */ | |
4638 | if (time_limit || microsecs) | |
4639 | { | |
4640 | EMACS_GET_TIME (end_time); | |
4641 | EMACS_SET_SECS_USECS (timeout, time_limit, microsecs); | |
4642 | EMACS_ADD_TIME (end_time, end_time, timeout); | |
4643 | } | |
4644 | ||
d0d6b7c5 JB |
4645 | while (1) |
4646 | { | |
c0239a0b RS |
4647 | int timeout_reduced_for_timers = 0; |
4648 | ||
d0d6b7c5 JB |
4649 | /* If calling from keyboard input, do not quit |
4650 | since we want to return C-g as an input character. | |
4651 | Otherwise, do pending quit if requested. */ | |
b89a415a | 4652 | if (read_kbd >= 0) |
d0d6b7c5 | 4653 | QUIT; |
6b61353c | 4654 | #ifdef SYNC_INPUT |
ef5eb925 | 4655 | else |
c3eff1b0 | 4656 | process_pending_signals (); |
6b61353c | 4657 | #endif |
d0d6b7c5 | 4658 | |
889255b4 | 4659 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 4660 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
889255b4 RS |
4661 | break; |
4662 | ||
d0d6b7c5 JB |
4663 | /* Compute time from now till when time limit is up */ |
4664 | /* Exit if already run out */ | |
4665 | if (time_limit == -1) | |
4666 | { | |
4667 | /* -1 specified for timeout means | |
4668 | gobble output available now | |
4669 | but don't wait at all. */ | |
4670 | ||
4671 | EMACS_SET_SECS_USECS (timeout, 0, 0); | |
4672 | } | |
4673 | else if (time_limit || microsecs) | |
4674 | { | |
4675 | EMACS_GET_TIME (timeout); | |
4676 | EMACS_SUB_TIME (timeout, end_time, timeout); | |
4677 | if (EMACS_TIME_NEG_P (timeout)) | |
4678 | break; | |
4679 | } | |
4680 | else | |
4681 | { | |
4682 | EMACS_SET_SECS_USECS (timeout, 100000, 0); | |
4683 | } | |
4684 | ||
f854a00b RS |
4685 | /* Normally we run timers here. |
4686 | But not if wait_for_cell; in those cases, | |
4687 | the wait is supposed to be short, | |
4688 | and those callers cannot handle running arbitrary Lisp code here. */ | |
107ed38d | 4689 | if (NILP (wait_for_cell) |
b89a415a | 4690 | && just_wait_proc >= 0) |
fb4c3627 | 4691 | { |
c0239a0b | 4692 | EMACS_TIME timer_delay; |
c573ae8e | 4693 | |
9baacf76 | 4694 | do |
c573ae8e | 4695 | { |
9baacf76 | 4696 | int old_timers_run = timers_run; |
c88164fe | 4697 | struct buffer *old_buffer = current_buffer; |
70bb1e5f | 4698 | Lisp_Object old_window = selected_window; |
177c0ea7 | 4699 | |
9baacf76 | 4700 | timer_delay = timer_check (1); |
a2fab450 GM |
4701 | |
4702 | /* If a timer has run, this might have changed buffers | |
4703 | an alike. Make read_key_sequence aware of that. */ | |
4704 | if (timers_run != old_timers_run | |
70bb1e5f CY |
4705 | && (old_buffer != current_buffer |
4706 | || !EQ (old_window, selected_window)) | |
a2fab450 GM |
4707 | && waiting_for_user_input_p == -1) |
4708 | record_asynch_buffer_change (); | |
177c0ea7 | 4709 | |
9baacf76 GM |
4710 | if (timers_run != old_timers_run && do_display) |
4711 | /* We must retry, since a timer may have requeued itself | |
4712 | and that could alter the time_delay. */ | |
3007ebfb | 4713 | redisplay_preserve_echo_area (9); |
9baacf76 GM |
4714 | else |
4715 | break; | |
c573ae8e | 4716 | } |
9baacf76 | 4717 | while (!detect_input_pending ()); |
c573ae8e | 4718 | |
69645afc | 4719 | /* If there is unread keyboard input, also return. */ |
b89a415a | 4720 | if (read_kbd != 0 |
69645afc RS |
4721 | && requeued_events_pending_p ()) |
4722 | break; | |
4723 | ||
c0239a0b | 4724 | if (! EMACS_TIME_NEG_P (timer_delay) && time_limit != -1) |
fb4c3627 RS |
4725 | { |
4726 | EMACS_TIME difference; | |
4727 | EMACS_SUB_TIME (difference, timer_delay, timeout); | |
4728 | if (EMACS_TIME_NEG_P (difference)) | |
c0239a0b RS |
4729 | { |
4730 | timeout = timer_delay; | |
4731 | timeout_reduced_for_timers = 1; | |
4732 | } | |
fb4c3627 | 4733 | } |
4abca5e7 RS |
4734 | /* If time_limit is -1, we are not going to wait at all. */ |
4735 | else if (time_limit != -1) | |
c573ae8e RS |
4736 | { |
4737 | /* This is so a breakpoint can be put here. */ | |
214d6069 | 4738 | wait_reading_process_output_1 (); |
c573ae8e | 4739 | } |
fb4c3627 RS |
4740 | } |
4741 | ||
90ab1a81 JB |
4742 | /* Cause C-g and alarm signals to take immediate action, |
4743 | and cause input available signals to zero out timeout. | |
4744 | ||
4745 | It is important that we do this before checking for process | |
4746 | activity. If we get a SIGCHLD after the explicit checks for | |
4747 | process activity, timeout is the only way we will know. */ | |
b89a415a | 4748 | if (read_kbd < 0) |
90ab1a81 JB |
4749 | set_waiting_for_input (&timeout); |
4750 | ||
6be429b1 JB |
4751 | /* If status of something has changed, and no input is |
4752 | available, notify the user of the change right away. After | |
4753 | this explicit check, we'll let the SIGCHLD handler zap | |
61bd39a3 CY |
4754 | timeout to get our attention. When Emacs is run |
4755 | interactively, only do this with a nonzero DO_DISPLAY | |
4756 | argument, because status_notify triggers redisplay. */ | |
4757 | if (update_tick != process_tick | |
4758 | && (do_display || noninteractive)) | |
6be429b1 | 4759 | { |
bad49fc7 KS |
4760 | SELECT_TYPE Atemp; |
4761 | #ifdef NON_BLOCKING_CONNECT | |
4762 | SELECT_TYPE Ctemp; | |
4763 | #endif | |
dd2a17ab | 4764 | |
6be429b1 | 4765 | Atemp = input_wait_mask; |
bad49fc7 KS |
4766 | IF_NON_BLOCKING_CONNECT (Ctemp = connect_wait_mask); |
4767 | ||
6be429b1 | 4768 | EMACS_SET_SECS_USECS (timeout, 0, 0); |
994d9841 NR |
4769 | if ((select (max (max (max_process_desc, max_keyboard_desc), |
4770 | max_gpm_desc) + 1, | |
177c0ea7 | 4771 | &Atemp, |
bad49fc7 | 4772 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab | 4773 | (num_pending_connects > 0 ? &Ctemp : (SELECT_TYPE *)0), |
bad49fc7 KS |
4774 | #else |
4775 | (SELECT_TYPE *)0, | |
4776 | #endif | |
dd2a17ab | 4777 | (SELECT_TYPE *)0, &timeout) |
ecd1f654 | 4778 | <= 0)) |
90ab1a81 JB |
4779 | { |
4780 | /* It's okay for us to do this and then continue with | |
a0e4d3f3 | 4781 | the loop, since timeout has already been zeroed out. */ |
90ab1a81 | 4782 | clear_waiting_for_input (); |
ff6daed3 | 4783 | status_notify (NULL); |
90ab1a81 | 4784 | } |
6be429b1 JB |
4785 | } |
4786 | ||
dd2a17ab | 4787 | /* Don't wait for output from a non-running process. Just |
63136da6 | 4788 | read whatever data has already been received. */ |
6bfd98e7 | 4789 | if (wait_proc && wait_proc->raw_status_new) |
6be429b1 | 4790 | update_status (wait_proc); |
6bfd98e7 | 4791 | if (wait_proc |
dd2a17ab KS |
4792 | && ! EQ (wait_proc->status, Qrun) |
4793 | && ! EQ (wait_proc->status, Qconnect)) | |
9aa2a7f4 | 4794 | { |
215b45e9 | 4795 | int nread, total_nread = 0; |
7ce63188 | 4796 | |
9aa2a7f4 | 4797 | clear_waiting_for_input (); |
7ce63188 RS |
4798 | XSETPROCESS (proc, wait_proc); |
4799 | ||
4800 | /* Read data from the process, until we exhaust it. */ | |
60f0fb11 | 4801 | while (wait_proc->infd >= 0) |
215b45e9 | 4802 | { |
60f0fb11 | 4803 | nread = read_process_output (proc, wait_proc->infd); |
e1b37c34 GM |
4804 | |
4805 | if (nread == 0) | |
4806 | break; | |
4807 | ||
63136da6 AS |
4808 | if (0 < nread) |
4809 | { | |
891bd142 SM |
4810 | total_nread += nread; |
4811 | got_some_input = 1; | |
4812 | } | |
215b45e9 RS |
4813 | #ifdef EIO |
4814 | else if (nread == -1 && EIO == errno) | |
63136da6 | 4815 | break; |
e1b37c34 GM |
4816 | #endif |
4817 | #ifdef EAGAIN | |
4818 | else if (nread == -1 && EAGAIN == errno) | |
63136da6 | 4819 | break; |
e1b37c34 GM |
4820 | #endif |
4821 | #ifdef EWOULDBLOCK | |
4822 | else if (nread == -1 && EWOULDBLOCK == errno) | |
63136da6 | 4823 | break; |
215b45e9 RS |
4824 | #endif |
4825 | } | |
7ce63188 | 4826 | if (total_nread > 0 && do_display) |
3007ebfb | 4827 | redisplay_preserve_echo_area (10); |
7ce63188 | 4828 | |
9aa2a7f4 JB |
4829 | break; |
4830 | } | |
6be429b1 | 4831 | |
d0d6b7c5 JB |
4832 | /* Wait till there is something to do */ |
4833 | ||
b89a415a | 4834 | if (wait_proc && just_wait_proc) |
107ed38d | 4835 | { |
60f0fb11 | 4836 | if (wait_proc->infd < 0) /* Terminated */ |
b89a415a | 4837 | break; |
60f0fb11 | 4838 | FD_SET (wait_proc->infd, &Available); |
bad49fc7 KS |
4839 | check_delay = 0; |
4840 | IF_NON_BLOCKING_CONNECT (check_connect = 0); | |
107ed38d KS |
4841 | } |
4842 | else if (!NILP (wait_for_cell)) | |
dd2a17ab KS |
4843 | { |
4844 | Available = non_process_wait_mask; | |
bad49fc7 KS |
4845 | check_delay = 0; |
4846 | IF_NON_BLOCKING_CONNECT (check_connect = 0); | |
dd2a17ab | 4847 | } |
a69281ff | 4848 | else |
dd2a17ab | 4849 | { |
b89a415a | 4850 | if (! read_kbd) |
dd2a17ab KS |
4851 | Available = non_keyboard_wait_mask; |
4852 | else | |
4853 | Available = input_wait_mask; | |
bad49fc7 | 4854 | IF_NON_BLOCKING_CONNECT (check_connect = (num_pending_connects > 0)); |
6b61353c | 4855 | check_delay = wait_channel >= 0 ? 0 : process_output_delay_count; |
dd2a17ab | 4856 | } |
d0d6b7c5 | 4857 | |
ff11dfa1 | 4858 | /* If frame size has changed or the window is newly mapped, |
ffd56f97 JB |
4859 | redisplay now, before we start to wait. There is a race |
4860 | condition here; if a SIGIO arrives between now and the select | |
016899c0 JB |
4861 | and indicates that a frame is trashed, the select may block |
4862 | displaying a trashed screen. */ | |
5164ee8e | 4863 | if (frame_garbaged && do_display) |
7286affd RS |
4864 | { |
4865 | clear_waiting_for_input (); | |
3007ebfb | 4866 | redisplay_preserve_echo_area (11); |
b89a415a | 4867 | if (read_kbd < 0) |
7efe788e | 4868 | set_waiting_for_input (&timeout); |
7286affd | 4869 | } |
ffd56f97 | 4870 | |
dd2a17ab | 4871 | no_avail = 0; |
b89a415a | 4872 | if (read_kbd && detect_input_pending ()) |
0a65b032 RS |
4873 | { |
4874 | nfds = 0; | |
dd2a17ab | 4875 | no_avail = 1; |
0a65b032 RS |
4876 | } |
4877 | else | |
dd2a17ab | 4878 | { |
bad49fc7 | 4879 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
4880 | if (check_connect) |
4881 | Connecting = connect_wait_mask; | |
bad49fc7 | 4882 | #endif |
6b61353c KH |
4883 | |
4884 | #ifdef ADAPTIVE_READ_BUFFERING | |
db853b7a | 4885 | /* Set the timeout for adaptive read buffering if any |
60f0fb11 | 4886 | process has non-zero read_output_skip and non-zero |
db853b7a KS |
4887 | read_output_delay, and we are not reading output for a |
4888 | specific wait_channel. It is not executed if | |
4889 | Vprocess_adaptive_read_buffering is nil. */ | |
6b61353c KH |
4890 | if (process_output_skip && check_delay > 0) |
4891 | { | |
4892 | int usecs = EMACS_USECS (timeout); | |
4893 | if (EMACS_SECS (timeout) > 0 || usecs > READ_OUTPUT_DELAY_MAX) | |
4894 | usecs = READ_OUTPUT_DELAY_MAX; | |
4895 | for (channel = 0; check_delay > 0 && channel <= max_process_desc; channel++) | |
4896 | { | |
4897 | proc = chan_process[channel]; | |
4898 | if (NILP (proc)) | |
4899 | continue; | |
db853b7a | 4900 | /* Find minimum non-zero read_output_delay among the |
60f0fb11 SM |
4901 | processes with non-zero read_output_skip. */ |
4902 | if (XPROCESS (proc)->read_output_delay > 0) | |
6b61353c KH |
4903 | { |
4904 | check_delay--; | |
60f0fb11 | 4905 | if (!XPROCESS (proc)->read_output_skip) |
6b61353c KH |
4906 | continue; |
4907 | FD_CLR (channel, &Available); | |
60f0fb11 SM |
4908 | XPROCESS (proc)->read_output_skip = 0; |
4909 | if (XPROCESS (proc)->read_output_delay < usecs) | |
4910 | usecs = XPROCESS (proc)->read_output_delay; | |
6b61353c KH |
4911 | } |
4912 | } | |
4913 | EMACS_SET_SECS_USECS (timeout, 0, usecs); | |
4914 | process_output_skip = 0; | |
4915 | } | |
4916 | #endif | |
edfda783 | 4917 | #ifdef HAVE_NS |
63136da6 | 4918 | nfds = ns_select |
edfda783 | 4919 | #else |
63136da6 | 4920 | nfds = select |
edfda783 | 4921 | #endif |
63136da6 | 4922 | (max (max (max_process_desc, max_keyboard_desc), |
994d9841 | 4923 | max_gpm_desc) + 1, |
177c0ea7 | 4924 | &Available, |
bad49fc7 | 4925 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab | 4926 | (check_connect ? &Connecting : (SELECT_TYPE *)0), |
bad49fc7 KS |
4927 | #else |
4928 | (SELECT_TYPE *)0, | |
4929 | #endif | |
dd2a17ab KS |
4930 | (SELECT_TYPE *)0, &timeout); |
4931 | } | |
6720a7fb | 4932 | |
d0d6b7c5 JB |
4933 | xerrno = errno; |
4934 | ||
4935 | /* Make C-g and alarm signals set flags again */ | |
4936 | clear_waiting_for_input (); | |
4937 | ||
4938 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 4939 | do_pending_window_change (0); |
d0d6b7c5 | 4940 | |
c0239a0b RS |
4941 | if (time_limit && nfds == 0 && ! timeout_reduced_for_timers) |
4942 | /* We wanted the full specified time, so return now. */ | |
d0d6b7c5 JB |
4943 | break; |
4944 | if (nfds < 0) | |
4945 | { | |
4946 | if (xerrno == EINTR) | |
dd2a17ab | 4947 | no_avail = 1; |
d0d6b7c5 JB |
4948 | else if (xerrno == EBADF) |
4949 | { | |
4950 | #ifdef AIX | |
4951 | /* AIX doesn't handle PTY closure the same way BSD does. On AIX, | |
4952 | the child's closure of the pts gives the parent a SIGHUP, and | |
4953 | the ptc file descriptor is automatically closed, | |
4954 | yielding EBADF here or at select() call above. | |
4955 | So, SIGHUP is ignored (see def of PTY_TTY_NAME_SPRINTF | |
a0e4d3f3 | 4956 | in m/ibmrt-aix.h), and here we just ignore the select error. |
d0d6b7c5 | 4957 | Cleanup occurs c/o status_notify after SIGCLD. */ |
dd2a17ab | 4958 | no_avail = 1; /* Cannot depend on values returned */ |
d0d6b7c5 JB |
4959 | #else |
4960 | abort (); | |
4961 | #endif | |
4962 | } | |
4963 | else | |
68c45bf0 | 4964 | error ("select error: %s", emacs_strerror (xerrno)); |
d0d6b7c5 | 4965 | } |
dd2a17ab KS |
4966 | |
4967 | if (no_avail) | |
4968 | { | |
4969 | FD_ZERO (&Available); | |
bad49fc7 | 4970 | IF_NON_BLOCKING_CONNECT (check_connect = 0); |
dd2a17ab KS |
4971 | } |
4972 | ||
5d5beb62 RS |
4973 | #if 0 /* When polling is used, interrupt_input is 0, |
4974 | so get_input_pending should read the input. | |
4975 | So this should not be needed. */ | |
4976 | /* If we are using polling for input, | |
4977 | and we see input available, make it get read now. | |
4978 | Otherwise it might not actually get read for a second. | |
214d6069 | 4979 | And on hpux, since we turn off polling in wait_reading_process_output, |
5d5beb62 | 4980 | it might never get read at all if we don't spend much time |
214d6069 | 4981 | outside of wait_reading_process_output. */ |
b89a415a | 4982 | if (read_kbd && interrupt_input |
5d5beb62 RS |
4983 | && keyboard_bit_set (&Available) |
4984 | && input_polling_used ()) | |
4985 | kill (getpid (), SIGALRM); | |
4986 | #endif | |
4987 | ||
d0d6b7c5 JB |
4988 | /* Check for keyboard input */ |
4989 | /* If there is any, return immediately | |
4990 | to give it higher priority than subprocesses */ | |
4991 | ||
b89a415a | 4992 | if (read_kbd != 0) |
6ed6233b | 4993 | { |
a2fab450 | 4994 | int old_timers_run = timers_run; |
c88164fe | 4995 | struct buffer *old_buffer = current_buffer; |
c0323133 | 4996 | Lisp_Object old_window = selected_window; |
a2fab450 | 4997 | int leave = 0; |
177c0ea7 | 4998 | |
5d6c2aa3 | 4999 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 GM |
5000 | { |
5001 | swallow_events (do_display); | |
5002 | if (detect_input_pending_run_timers (do_display)) | |
5003 | leave = 1; | |
5004 | } | |
6ed6233b | 5005 | |
a2fab450 GM |
5006 | /* If a timer has run, this might have changed buffers |
5007 | an alike. Make read_key_sequence aware of that. */ | |
5008 | if (timers_run != old_timers_run | |
c88164fe | 5009 | && waiting_for_user_input_p == -1 |
c0323133 GM |
5010 | && (old_buffer != current_buffer |
5011 | || !EQ (old_window, selected_window))) | |
a2fab450 GM |
5012 | record_asynch_buffer_change (); |
5013 | ||
5014 | if (leave) | |
5015 | break; | |
177c0ea7 JB |
5016 | } |
5017 | ||
69645afc | 5018 | /* If there is unread keyboard input, also return. */ |
b89a415a | 5019 | if (read_kbd != 0 |
69645afc RS |
5020 | && requeued_events_pending_p ()) |
5021 | break; | |
5022 | ||
77e1b3d4 RS |
5023 | /* If we are not checking for keyboard input now, |
5024 | do process events (but don't run any timers). | |
5025 | This is so that X events will be processed. | |
0c9960e9 | 5026 | Otherwise they may have to wait until polling takes place. |
77e1b3d4 RS |
5027 | That would causes delays in pasting selections, for example. |
5028 | ||
5029 | (We used to do this only if wait_for_cell.) */ | |
b89a415a | 5030 | if (read_kbd == 0 && detect_input_pending ()) |
f854a00b RS |
5031 | { |
5032 | swallow_events (do_display); | |
0c9960e9 | 5033 | #if 0 /* Exiting when read_kbd doesn't request that seems wrong, though. */ |
f854a00b RS |
5034 | if (detect_input_pending ()) |
5035 | break; | |
5d5beb62 | 5036 | #endif |
0c9960e9 | 5037 | } |
f854a00b | 5038 | |
84aa3ace | 5039 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 5040 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
84aa3ace RS |
5041 | break; |
5042 | ||
4746118a | 5043 | #ifdef SIGIO |
5d5beb62 | 5044 | /* If we think we have keyboard input waiting, but didn't get SIGIO, |
d0d6b7c5 JB |
5045 | go read it. This can happen with X on BSD after logging out. |
5046 | In that case, there really is no input and no SIGIO, | |
5047 | but select says there is input. */ | |
5048 | ||
b89a415a | 5049 | if (read_kbd && interrupt_input |
2601f59e | 5050 | && keyboard_bit_set (&Available) && ! noninteractive) |
e643c5be | 5051 | kill (getpid (), SIGIO); |
4746118a | 5052 | #endif |
d0d6b7c5 | 5053 | |
d0d6b7c5 JB |
5054 | if (! wait_proc) |
5055 | got_some_input |= nfds > 0; | |
5056 | ||
32676c08 JB |
5057 | /* If checking input just got us a size-change event from X, |
5058 | obey it now if we should. */ | |
b89a415a | 5059 | if (read_kbd || ! NILP (wait_for_cell)) |
2b653806 | 5060 | do_pending_window_change (0); |
32676c08 | 5061 | |
a9f2c884 | 5062 | /* Check for data from a process. */ |
dd2a17ab KS |
5063 | if (no_avail || nfds == 0) |
5064 | continue; | |
5065 | ||
a9f2c884 RS |
5066 | /* Really FIRST_PROC_DESC should be 0 on Unix, |
5067 | but this is safer in the short run. */ | |
a69281ff | 5068 | for (channel = 0; channel <= max_process_desc; channel++) |
d0d6b7c5 | 5069 | { |
a69281ff RS |
5070 | if (FD_ISSET (channel, &Available) |
5071 | && FD_ISSET (channel, &non_keyboard_wait_mask)) | |
d0d6b7c5 JB |
5072 | { |
5073 | int nread; | |
5074 | ||
5075 | /* If waiting for this channel, arrange to return as | |
5076 | soon as no more input to be processed. No more | |
5077 | waiting. */ | |
5078 | if (wait_channel == channel) | |
5079 | { | |
a9f2c884 | 5080 | wait_channel = -1; |
d0d6b7c5 JB |
5081 | time_limit = -1; |
5082 | got_some_input = 1; | |
5083 | } | |
5084 | proc = chan_process[channel]; | |
5085 | if (NILP (proc)) | |
5086 | continue; | |
5087 | ||
e690ca94 KS |
5088 | /* If this is a server stream socket, accept connection. */ |
5089 | if (EQ (XPROCESS (proc)->status, Qlisten)) | |
5090 | { | |
5091 | server_accept_connection (proc, channel); | |
5092 | continue; | |
5093 | } | |
5094 | ||
d0d6b7c5 JB |
5095 | /* Read data from the process, starting with our |
5096 | buffered-ahead character if we have one. */ | |
5097 | ||
5098 | nread = read_process_output (proc, channel); | |
5099 | if (nread > 0) | |
5100 | { | |
5101 | /* Since read_process_output can run a filter, | |
5102 | which can call accept-process-output, | |
5103 | don't try to read from any other processes | |
5104 | before doing the select again. */ | |
5105 | FD_ZERO (&Available); | |
5106 | ||
5107 | if (do_display) | |
3007ebfb | 5108 | redisplay_preserve_echo_area (12); |
d0d6b7c5 JB |
5109 | } |
5110 | #ifdef EWOULDBLOCK | |
5111 | else if (nread == -1 && errno == EWOULDBLOCK) | |
5112 | ; | |
0b75e9a4 | 5113 | #endif |
89d7280d RS |
5114 | /* ISC 4.1 defines both EWOULDBLOCK and O_NONBLOCK, |
5115 | and Emacs uses O_NONBLOCK, so what we get is EAGAIN. */ | |
d0d6b7c5 JB |
5116 | #ifdef O_NONBLOCK |
5117 | else if (nread == -1 && errno == EAGAIN) | |
5118 | ; | |
5119 | #else | |
5120 | #ifdef O_NDELAY | |
5121 | else if (nread == -1 && errno == EAGAIN) | |
5122 | ; | |
5123 | /* Note that we cannot distinguish between no input | |
5124 | available now and a closed pipe. | |
5125 | With luck, a closed pipe will be accompanied by | |
5126 | subprocess termination and SIGCHLD. */ | |
d888760c | 5127 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 | 5128 | ; |
4740825c KS |
5129 | #endif /* O_NDELAY */ |
5130 | #endif /* O_NONBLOCK */ | |
d0d6b7c5 JB |
5131 | #ifdef HAVE_PTYS |
5132 | /* On some OSs with ptys, when the process on one end of | |
5133 | a pty exits, the other end gets an error reading with | |
5134 | errno = EIO instead of getting an EOF (0 bytes read). | |
5135 | Therefore, if we get an error reading and errno = | |
5136 | EIO, just continue, because the child process has | |
5137 | exited and should clean itself up soon (e.g. when we | |
5651af6d RS |
5138 | get a SIGCHLD). |
5139 | ||
5140 | However, it has been known to happen that the SIGCHLD | |
4740825c | 5141 | got lost. So raise the signal again just in case. |
5651af6d | 5142 | It can't hurt. */ |
d0d6b7c5 | 5143 | else if (nread == -1 && errno == EIO) |
4740825c KS |
5144 | { |
5145 | /* Clear the descriptor now, so we only raise the signal once. */ | |
5146 | FD_CLR (channel, &input_wait_mask); | |
5147 | FD_CLR (channel, &non_keyboard_wait_mask); | |
5148 | ||
5149 | kill (getpid (), SIGCHLD); | |
5150 | } | |
5151 | #endif /* HAVE_PTYS */ | |
ffd56f97 JB |
5152 | /* If we can detect process termination, don't consider the process |
5153 | gone just because its pipe is closed. */ | |
d0d6b7c5 | 5154 | #ifdef SIGCHLD |
d888760c | 5155 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 JB |
5156 | ; |
5157 | #endif | |
5158 | else | |
5159 | { | |
5160 | /* Preserve status of processes already terminated. */ | |
60f0fb11 | 5161 | XPROCESS (proc)->tick = ++process_tick; |
d0d6b7c5 | 5162 | deactivate_process (proc); |
6bfd98e7 | 5163 | if (XPROCESS (proc)->raw_status_new) |
d0d6b7c5 JB |
5164 | update_status (XPROCESS (proc)); |
5165 | if (EQ (XPROCESS (proc)->status, Qrun)) | |
5166 | XPROCESS (proc)->status | |
5167 | = Fcons (Qexit, Fcons (make_number (256), Qnil)); | |
5168 | } | |
5169 | } | |
177c0ea7 | 5170 | #ifdef NON_BLOCKING_CONNECT |
1566f511 KS |
5171 | if (check_connect && FD_ISSET (channel, &Connecting) |
5172 | && FD_ISSET (channel, &connect_wait_mask)) | |
dd2a17ab KS |
5173 | { |
5174 | struct Lisp_Process *p; | |
dd2a17ab KS |
5175 | |
5176 | FD_CLR (channel, &connect_wait_mask); | |
5177 | if (--num_pending_connects < 0) | |
5178 | abort (); | |
5179 | ||
5180 | proc = chan_process[channel]; | |
5181 | if (NILP (proc)) | |
5182 | continue; | |
5183 | ||
5184 | p = XPROCESS (proc); | |
5185 | ||
5186 | #ifdef GNU_LINUX | |
5187 | /* getsockopt(,,SO_ERROR,,) is said to hang on some systems. | |
63136da6 | 5188 | So only use it on systems where it is known to work. */ |
dd2a17ab | 5189 | { |
e690ca94 | 5190 | int xlen = sizeof(xerrno); |
dd2a17ab KS |
5191 | if (getsockopt(channel, SOL_SOCKET, SO_ERROR, &xerrno, &xlen)) |
5192 | xerrno = errno; | |
5193 | } | |
5194 | #else | |
44c887be PJ |
5195 | { |
5196 | struct sockaddr pname; | |
5197 | int pnamelen = sizeof(pname); | |
5198 | ||
5199 | /* If connection failed, getpeername will fail. */ | |
5200 | xerrno = 0; | |
5201 | if (getpeername(channel, &pname, &pnamelen) < 0) | |
5202 | { | |
5203 | /* Obtain connect failure code through error slippage. */ | |
5204 | char dummy; | |
dd2a17ab | 5205 | xerrno = errno; |
44c887be PJ |
5206 | if (errno == ENOTCONN && read(channel, &dummy, 1) < 0) |
5207 | xerrno = errno; | |
5208 | } | |
5209 | } | |
dd2a17ab KS |
5210 | #endif |
5211 | if (xerrno) | |
5212 | { | |
60f0fb11 | 5213 | p->tick = ++process_tick; |
dd2a17ab KS |
5214 | p->status = Fcons (Qfailed, Fcons (make_number (xerrno), Qnil)); |
5215 | deactivate_process (proc); | |
5216 | } | |
5217 | else | |
5218 | { | |
5219 | p->status = Qrun; | |
5220 | /* Execute the sentinel here. If we had relied on | |
5221 | status_notify to do it later, it will read input | |
5222 | from the process before calling the sentinel. */ | |
5223 | exec_sentinel (proc, build_string ("open\n")); | |
e690ca94 | 5224 | if (!EQ (p->filter, Qt) && !EQ (p->command, Qt)) |
dd2a17ab | 5225 | { |
60f0fb11 SM |
5226 | FD_SET (p->infd, &input_wait_mask); |
5227 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
dd2a17ab KS |
5228 | } |
5229 | } | |
5230 | } | |
5231 | #endif /* NON_BLOCKING_CONNECT */ | |
ffd56f97 JB |
5232 | } /* end for each file descriptor */ |
5233 | } /* end while exit conditions not met */ | |
d0d6b7c5 | 5234 | |
2beb96f9 | 5235 | unbind_to (count, Qnil); |
d430ee71 | 5236 | |
ffd56f97 JB |
5237 | /* If calling from keyboard input, do not quit |
5238 | since we want to return C-g as an input character. | |
5239 | Otherwise, do pending quit if requested. */ | |
b89a415a | 5240 | if (read_kbd >= 0) |
ffd56f97 JB |
5241 | { |
5242 | /* Prevent input_pending from remaining set if we quit. */ | |
5243 | clear_input_pending (); | |
5244 | QUIT; | |
5245 | } | |
efa2a55c | 5246 | |
d0d6b7c5 JB |
5247 | return got_some_input; |
5248 | } | |
5249 | \f | |
3b9a3dfa RS |
5250 | /* Given a list (FUNCTION ARGS...), apply FUNCTION to the ARGS. */ |
5251 | ||
5252 | static Lisp_Object | |
5253 | read_process_output_call (fun_and_args) | |
5254 | Lisp_Object fun_and_args; | |
5255 | { | |
70949dac | 5256 | return apply1 (XCAR (fun_and_args), XCDR (fun_and_args)); |
3b9a3dfa RS |
5257 | } |
5258 | ||
5259 | static Lisp_Object | |
5260 | read_process_output_error_handler (error) | |
5261 | Lisp_Object error; | |
5262 | { | |
5263 | cmd_error_internal (error, "error in process filter: "); | |
5264 | Vinhibit_quit = Qt; | |
5265 | update_echo_area (); | |
833ba342 | 5266 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 5267 | return Qt; |
3b9a3dfa RS |
5268 | } |
5269 | ||
d0d6b7c5 JB |
5270 | /* Read pending output from the process channel, |
5271 | starting with our buffered-ahead character if we have one. | |
0fa1789e | 5272 | Yield number of decoded characters read. |
d0d6b7c5 | 5273 | |
116c423c | 5274 | This function reads at most 4096 characters. |
d0d6b7c5 | 5275 | If you want to read all available subprocess output, |
0fa1789e KH |
5276 | you must call it repeatedly until it returns zero. |
5277 | ||
5278 | The characters read are decoded according to PROC's coding-system | |
5279 | for decoding. */ | |
d0d6b7c5 | 5280 | |
ff6daed3 | 5281 | static int |
d0d6b7c5 JB |
5282 | read_process_output (proc, channel) |
5283 | Lisp_Object proc; | |
5284 | register int channel; | |
5285 | { | |
8f924df7 | 5286 | register int nbytes; |
d0d6b7c5 | 5287 | char *chars; |
d0d6b7c5 | 5288 | register Lisp_Object outstream; |
d0d6b7c5 JB |
5289 | register struct Lisp_Process *p = XPROCESS (proc); |
5290 | register int opoint; | |
c7580538 | 5291 | struct coding_system *coding = proc_decode_coding_system[channel]; |
60f0fb11 | 5292 | int carryover = p->decoding_carryover; |
116c423c | 5293 | int readmax = 4096; |
d0d6b7c5 | 5294 | |
e690ca94 | 5295 | chars = (char *) alloca (carryover + readmax); |
e7fbaa65 KH |
5296 | if (carryover) |
5297 | /* See the comment above. */ | |
d5db4077 | 5298 | bcopy (SDATA (p->decoding_buf), chars, carryover); |
0fa1789e | 5299 | |
e690ca94 KS |
5300 | #ifdef DATAGRAM_SOCKETS |
5301 | /* We have a working select, so proc_buffered_char is always -1. */ | |
5302 | if (DATAGRAM_CHAN_P (channel)) | |
5303 | { | |
5304 | int len = datagram_address[channel].len; | |
39b1da20 | 5305 | nbytes = recvfrom (channel, chars + carryover, readmax, |
e690ca94 KS |
5306 | 0, datagram_address[channel].sa, &len); |
5307 | } | |
5308 | else | |
5309 | #endif | |
d0d6b7c5 | 5310 | if (proc_buffered_char[channel] < 0) |
6b61353c | 5311 | { |
39b1da20 | 5312 | nbytes = emacs_read (channel, chars + carryover, readmax); |
6b61353c | 5313 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 5314 | if (nbytes > 0 && p->adaptive_read_buffering) |
6b61353c | 5315 | { |
60f0fb11 | 5316 | int delay = p->read_output_delay; |
6b61353c KH |
5317 | if (nbytes < 256) |
5318 | { | |
5319 | if (delay < READ_OUTPUT_DELAY_MAX_MAX) | |
5320 | { | |
5321 | if (delay == 0) | |
5322 | process_output_delay_count++; | |
5323 | delay += READ_OUTPUT_DELAY_INCREMENT * 2; | |
5324 | } | |
5325 | } | |
39b1da20 | 5326 | else if (delay > 0 && (nbytes == readmax)) |
6b61353c KH |
5327 | { |
5328 | delay -= READ_OUTPUT_DELAY_INCREMENT; | |
5329 | if (delay == 0) | |
5330 | process_output_delay_count--; | |
5331 | } | |
60f0fb11 | 5332 | p->read_output_delay = delay; |
6b61353c KH |
5333 | if (delay) |
5334 | { | |
60f0fb11 | 5335 | p->read_output_skip = 1; |
6b61353c KH |
5336 | process_output_skip = 1; |
5337 | } | |
5338 | } | |
5339 | #endif | |
5340 | } | |
d0d6b7c5 JB |
5341 | else |
5342 | { | |
ed7a4b2d | 5343 | chars[carryover] = proc_buffered_char[channel]; |
d0d6b7c5 | 5344 | proc_buffered_char[channel] = -1; |
39b1da20 | 5345 | nbytes = emacs_read (channel, chars + carryover + 1, readmax - 1); |
1d2fc612 RS |
5346 | if (nbytes < 0) |
5347 | nbytes = 1; | |
d0d6b7c5 | 5348 | else |
1d2fc612 | 5349 | nbytes = nbytes + 1; |
d0d6b7c5 | 5350 | } |
d0d6b7c5 | 5351 | |
60f0fb11 | 5352 | p->decoding_carryover = 0; |
ca65341e | 5353 | |
ed7a4b2d | 5354 | /* At this point, NBYTES holds number of bytes just received |
0fa1789e | 5355 | (including the one in proc_buffered_char[channel]). */ |
de7fbd09 KH |
5356 | if (nbytes <= 0) |
5357 | { | |
5358 | if (nbytes < 0 || coding->mode & CODING_MODE_LAST_BLOCK) | |
5359 | return nbytes; | |
5360 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
5361 | } | |
d0d6b7c5 | 5362 | |
1d2fc612 | 5363 | /* Now set NBYTES how many bytes we must decode. */ |
e7fbaa65 | 5364 | nbytes += carryover; |
0fa1789e | 5365 | |
1d2fc612 | 5366 | /* Read and dispose of the process output. */ |
d0d6b7c5 JB |
5367 | outstream = p->filter; |
5368 | if (!NILP (outstream)) | |
5369 | { | |
177c0ea7 | 5370 | /* We inhibit quit here instead of just catching it so that |
d0d6b7c5 JB |
5371 | hitting ^G when a filter happens to be running won't screw |
5372 | it up. */ | |
aed13378 | 5373 | int count = SPECPDL_INDEX (); |
30c78175 | 5374 | Lisp_Object odeactivate; |
dfc21838 | 5375 | Lisp_Object obuffer, okeymap; |
1d2fc612 | 5376 | Lisp_Object text; |
4da2f5be | 5377 | int outer_running_asynch_code = running_asynch_code; |
bbce7d72 | 5378 | int waiting = waiting_for_user_input_p; |
30c78175 | 5379 | |
dfc21838 RS |
5380 | /* No need to gcpro these, because all we do with them later |
5381 | is test them for EQness, and none of them should be a string. */ | |
30c78175 | 5382 | odeactivate = Vdeactivate_mark; |
dfc21838 RS |
5383 | XSETBUFFER (obuffer, current_buffer); |
5384 | okeymap = current_buffer->keymap; | |
30c78175 | 5385 | |
d0d6b7c5 | 5386 | specbind (Qinhibit_quit, Qt); |
6545aada | 5387 | specbind (Qlast_nonmenu_event, Qt); |
3b9a3dfa | 5388 | |
4da2f5be RS |
5389 | /* In case we get recursively called, |
5390 | and we already saved the match data nonrecursively, | |
5391 | save the same match data in safely recursive fashion. */ | |
5392 | if (outer_running_asynch_code) | |
5393 | { | |
5394 | Lisp_Object tem; | |
5395 | /* Don't clobber the CURRENT match data, either! */ | |
89f2614d KS |
5396 | tem = Fmatch_data (Qnil, Qnil, Qnil); |
5397 | restore_search_regs (); | |
5398 | record_unwind_save_match_data (); | |
5399 | Fset_match_data (tem, Qt); | |
4da2f5be RS |
5400 | } |
5401 | ||
5402 | /* For speed, if a search happens within this code, | |
5403 | save the match data in a special nonrecursive fashion. */ | |
7074fde6 | 5404 | running_asynch_code = 1; |
4da2f5be | 5405 | |
5bbf78c1 KH |
5406 | decode_coding_c_string (coding, chars, nbytes, Qt); |
5407 | text = coding->dst_object; | |
5bbf78c1 | 5408 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); |
ed7a4b2d | 5409 | /* A new coding system might be found. */ |
5bbf78c1 | 5410 | if (!EQ (p->decode_coding_system, Vlast_coding_system_used)) |
ed7a4b2d | 5411 | { |
5bbf78c1 | 5412 | p->decode_coding_system = Vlast_coding_system_used; |
ed7a4b2d KH |
5413 | |
5414 | /* Don't call setup_coding_system for | |
5415 | proc_decode_coding_system[channel] here. It is done in | |
5416 | detect_coding called via decode_coding above. */ | |
5417 | ||
5418 | /* If a coding system for encoding is not yet decided, we set | |
5419 | it as the same as coding-system for decoding. | |
5420 | ||
5421 | But, before doing that we must check if | |
5422 | proc_encode_coding_system[p->outfd] surely points to a | |
5423 | valid memory because p->outfd will be changed once EOF is | |
5424 | sent to the process. */ | |
5425 | if (NILP (p->encode_coding_system) | |
60f0fb11 | 5426 | && proc_encode_coding_system[p->outfd]) |
ed7a4b2d | 5427 | { |
76d812bb KH |
5428 | p->encode_coding_system |
5429 | = coding_inherit_eol_type (Vlast_coding_system_used, Qnil); | |
5bbf78c1 | 5430 | setup_coding_system (p->encode_coding_system, |
60f0fb11 | 5431 | proc_encode_coding_system[p->outfd]); |
ed7a4b2d KH |
5432 | } |
5433 | } | |
51c6067d | 5434 | |
dd8c7a53 KH |
5435 | if (coding->carryover_bytes > 0) |
5436 | { | |
04961398 KH |
5437 | if (SCHARS (p->decoding_buf) < coding->carryover_bytes) |
5438 | p->decoding_buf = make_uninit_string (coding->carryover_bytes); | |
8f924df7 | 5439 | bcopy (coding->carryover, SDATA (p->decoding_buf), |
dd8c7a53 | 5440 | coding->carryover_bytes); |
8c406a9b | 5441 | p->decoding_carryover = coding->carryover_bytes; |
dd8c7a53 | 5442 | } |
e430e5ba | 5443 | if (SBYTES (text) > 0) |
dd97db06 KH |
5444 | internal_condition_case_1 (read_process_output_call, |
5445 | Fcons (outstream, | |
5446 | Fcons (proc, Fcons (text, Qnil))), | |
5447 | !NILP (Vdebug_on_error) ? Qnil : Qerror, | |
5448 | read_process_output_error_handler); | |
4da2f5be RS |
5449 | |
5450 | /* If we saved the match data nonrecursively, restore it now. */ | |
89f2614d | 5451 | restore_search_regs (); |
4da2f5be | 5452 | running_asynch_code = outer_running_asynch_code; |
d0d6b7c5 | 5453 | |
592ce97f | 5454 | /* Handling the process output should not deactivate the mark. */ |
30c78175 RS |
5455 | Vdeactivate_mark = odeactivate; |
5456 | ||
bbce7d72 RS |
5457 | /* Restore waiting_for_user_input_p as it was |
5458 | when we were called, in case the filter clobbered it. */ | |
5459 | waiting_for_user_input_p = waiting; | |
5460 | ||
7973cfa8 RS |
5461 | #if 0 /* Call record_asynch_buffer_change unconditionally, |
5462 | because we might have changed minor modes or other things | |
5463 | that affect key bindings. */ | |
dfc21838 RS |
5464 | if (! EQ (Fcurrent_buffer (), obuffer) |
5465 | || ! EQ (current_buffer->keymap, okeymap)) | |
7973cfa8 | 5466 | #endif |
927e08be RS |
5467 | /* But do it only if the caller is actually going to read events. |
5468 | Otherwise there's no need to make him wake up, and it could | |
7157b8fe | 5469 | cause trouble (for example it would make sit_for return). */ |
927e08be RS |
5470 | if (waiting_for_user_input_p == -1) |
5471 | record_asynch_buffer_change (); | |
d72534ba | 5472 | |
2ea6d561 | 5473 | unbind_to (count, Qnil); |
e430e5ba | 5474 | return nbytes; |
d0d6b7c5 JB |
5475 | } |
5476 | ||
5477 | /* If no filter, write into buffer if it isn't dead. */ | |
5478 | if (!NILP (p->buffer) && !NILP (XBUFFER (p->buffer)->name)) | |
5479 | { | |
b0310da4 | 5480 | Lisp_Object old_read_only; |
12ca5cdf | 5481 | int old_begv, old_zv; |
d8a2934e | 5482 | int old_begv_byte, old_zv_byte; |
30c78175 | 5483 | Lisp_Object odeactivate; |
d8a2934e RS |
5484 | int before, before_byte; |
5485 | int opoint_byte; | |
ed7a4b2d | 5486 | Lisp_Object text; |
926b7e5e | 5487 | struct buffer *b; |
59c4c60f | 5488 | int count = SPECPDL_INDEX (); |
30c78175 RS |
5489 | |
5490 | odeactivate = Vdeactivate_mark; | |
d0d6b7c5 | 5491 | |
59c4c60f | 5492 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
d0d6b7c5 | 5493 | Fset_buffer (p->buffer); |
6ec8bbd2 | 5494 | opoint = PT; |
d8a2934e | 5495 | opoint_byte = PT_BYTE; |
b0310da4 | 5496 | old_read_only = current_buffer->read_only; |
12ca5cdf RS |
5497 | old_begv = BEGV; |
5498 | old_zv = ZV; | |
d8a2934e RS |
5499 | old_begv_byte = BEGV_BYTE; |
5500 | old_zv_byte = ZV_BYTE; | |
b0310da4 JB |
5501 | |
5502 | current_buffer->read_only = Qnil; | |
d0d6b7c5 JB |
5503 | |
5504 | /* Insert new output into buffer | |
5505 | at the current end-of-output marker, | |
5506 | thus preserving logical ordering of input and output. */ | |
5507 | if (XMARKER (p->mark)->buffer) | |
d8a2934e RS |
5508 | SET_PT_BOTH (clip_to_bounds (BEGV, marker_position (p->mark), ZV), |
5509 | clip_to_bounds (BEGV_BYTE, marker_byte_position (p->mark), | |
5510 | ZV_BYTE)); | |
d0d6b7c5 | 5511 | else |
d8a2934e | 5512 | SET_PT_BOTH (ZV, ZV_BYTE); |
12ca5cdf | 5513 | before = PT; |
d8a2934e | 5514 | before_byte = PT_BYTE; |
b0310da4 JB |
5515 | |
5516 | /* If the output marker is outside of the visible region, save | |
5517 | the restriction and widen. */ | |
6ec8bbd2 | 5518 | if (! (BEGV <= PT && PT <= ZV)) |
b0310da4 JB |
5519 | Fwiden (); |
5520 | ||
5bbf78c1 KH |
5521 | decode_coding_c_string (coding, chars, nbytes, Qt); |
5522 | text = coding->dst_object; | |
5523 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); | |
ed7a4b2d KH |
5524 | /* A new coding system might be found. See the comment in the |
5525 | similar code in the previous `if' block. */ | |
5bbf78c1 | 5526 | if (!EQ (p->decode_coding_system, Vlast_coding_system_used)) |
ed7a4b2d | 5527 | { |
5bbf78c1 | 5528 | p->decode_coding_system = Vlast_coding_system_used; |
ed7a4b2d | 5529 | if (NILP (p->encode_coding_system) |
60f0fb11 | 5530 | && proc_encode_coding_system[p->outfd]) |
ed7a4b2d | 5531 | { |
76d812bb KH |
5532 | p->encode_coding_system |
5533 | = coding_inherit_eol_type (Vlast_coding_system_used, Qnil); | |
5bbf78c1 | 5534 | setup_coding_system (p->encode_coding_system, |
60f0fb11 | 5535 | proc_encode_coding_system[p->outfd]); |
ed7a4b2d KH |
5536 | } |
5537 | } | |
dd8c7a53 KH |
5538 | if (coding->carryover_bytes > 0) |
5539 | { | |
04961398 KH |
5540 | if (SCHARS (p->decoding_buf) < coding->carryover_bytes) |
5541 | p->decoding_buf = make_uninit_string (coding->carryover_bytes); | |
8f924df7 | 5542 | bcopy (coding->carryover, SDATA (p->decoding_buf), |
dd8c7a53 | 5543 | coding->carryover_bytes); |
8c406a9b | 5544 | p->decoding_carryover = coding->carryover_bytes; |
dd8c7a53 | 5545 | } |
d69864bf KH |
5546 | /* Adjust the multibyteness of TEXT to that of the buffer. */ |
5547 | if (NILP (current_buffer->enable_multibyte_characters) | |
5548 | != ! STRING_MULTIBYTE (text)) | |
5549 | text = (STRING_MULTIBYTE (text) | |
57bb5c37 | 5550 | ? Fstring_as_unibyte (text) |
03f04413 | 5551 | : Fstring_to_multibyte (text)); |
57bb5c37 KH |
5552 | /* Insert before markers in case we are inserting where |
5553 | the buffer's mark is, and the user's next command is Meta-y. */ | |
e430e5ba KH |
5554 | insert_from_string_before_markers (text, 0, 0, |
5555 | SCHARS (text), SBYTES (text), 0); | |
0d023da1 | 5556 | |
926b7e5e GM |
5557 | /* Make sure the process marker's position is valid when the |
5558 | process buffer is changed in the signal_after_change above. | |
5559 | W3 is known to do that. */ | |
5560 | if (BUFFERP (p->buffer) | |
5561 | && (b = XBUFFER (p->buffer), b != current_buffer)) | |
5562 | set_marker_both (p->mark, p->buffer, BUF_PT (b), BUF_PT_BYTE (b)); | |
5563 | else | |
5564 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); | |
b0310da4 | 5565 | |
d0d6b7c5 JB |
5566 | update_mode_lines++; |
5567 | ||
12ca5cdf RS |
5568 | /* Make sure opoint and the old restrictions |
5569 | float ahead of any new text just as point would. */ | |
5570 | if (opoint >= before) | |
d8a2934e RS |
5571 | { |
5572 | opoint += PT - before; | |
5573 | opoint_byte += PT_BYTE - before_byte; | |
5574 | } | |
12ca5cdf | 5575 | if (old_begv > before) |
d8a2934e RS |
5576 | { |
5577 | old_begv += PT - before; | |
5578 | old_begv_byte += PT_BYTE - before_byte; | |
5579 | } | |
12ca5cdf | 5580 | if (old_zv >= before) |
d8a2934e RS |
5581 | { |
5582 | old_zv += PT - before; | |
5583 | old_zv_byte += PT_BYTE - before_byte; | |
5584 | } | |
12ca5cdf | 5585 | |
b0310da4 | 5586 | /* If the restriction isn't what it should be, set it. */ |
12ca5cdf RS |
5587 | if (old_begv != BEGV || old_zv != ZV) |
5588 | Fnarrow_to_region (make_number (old_begv), make_number (old_zv)); | |
b0310da4 | 5589 | |
592ce97f | 5590 | /* Handling the process output should not deactivate the mark. */ |
30c78175 RS |
5591 | Vdeactivate_mark = odeactivate; |
5592 | ||
b0310da4 | 5593 | current_buffer->read_only = old_read_only; |
d8a2934e | 5594 | SET_PT_BOTH (opoint, opoint_byte); |
59c4c60f | 5595 | unbind_to (count, Qnil); |
d0d6b7c5 | 5596 | } |
1d2fc612 | 5597 | return nbytes; |
d0d6b7c5 JB |
5598 | } |
5599 | ||
5600 | DEFUN ("waiting-for-user-input-p", Fwaiting_for_user_input_p, Swaiting_for_user_input_p, | |
5601 | 0, 0, 0, | |
f3d9532b | 5602 | doc: /* Returns non-nil if Emacs is waiting for input from the user. |
fdb82f93 PJ |
5603 | This is intended for use by asynchronous process output filters and sentinels. */) |
5604 | () | |
d0d6b7c5 | 5605 | { |
8b4d685f | 5606 | return (waiting_for_user_input_p ? Qt : Qnil); |
d0d6b7c5 JB |
5607 | } |
5608 | \f | |
5609 | /* Sending data to subprocess */ | |
5610 | ||
5611 | jmp_buf send_process_frame; | |
0daad115 | 5612 | Lisp_Object process_sent_to; |
d0d6b7c5 JB |
5613 | |
5614 | SIGTYPE | |
5615 | send_process_trap () | |
5616 | { | |
333f1b6f | 5617 | SIGNAL_THREAD_CHECK (SIGPIPE); |
c8f44005 | 5618 | sigunblock (sigmask (SIGPIPE)); |
d0d6b7c5 JB |
5619 | longjmp (send_process_frame, 1); |
5620 | } | |
5621 | ||
4556b700 RS |
5622 | /* Send some data to process PROC. |
5623 | BUF is the beginning of the data; LEN is the number of characters. | |
a92e4183 KH |
5624 | OBJECT is the Lisp object that the data comes from. If OBJECT is |
5625 | nil or t, it means that the data comes from C string. | |
0fa1789e | 5626 | |
a92e4183 KH |
5627 | If OBJECT is not nil, the data is encoded by PROC's coding-system |
5628 | for encoding before it is sent. | |
1fb0098c GM |
5629 | |
5630 | This function can evaluate Lisp code and can garbage collect. */ | |
4556b700 | 5631 | |
ff6daed3 | 5632 | static void |
4556b700 | 5633 | send_process (proc, buf, len, object) |
ecd1f654 | 5634 | volatile Lisp_Object proc; |
0daad115 GM |
5635 | unsigned char *volatile buf; |
5636 | volatile int len; | |
5637 | volatile Lisp_Object object; | |
d0d6b7c5 | 5638 | { |
ecd1f654 | 5639 | /* Use volatile to protect variables from being clobbered by longjmp. */ |
6b61353c | 5640 | struct Lisp_Process *p = XPROCESS (proc); |
d0d6b7c5 | 5641 | int rv; |
0fa1789e | 5642 | struct coding_system *coding; |
347f3cd3 | 5643 | struct gcpro gcpro1; |
41c4895c | 5644 | SIGTYPE (*volatile old_sigpipe) (); |
6044e593 | 5645 | |
347f3cd3 | 5646 | GCPRO1 (object); |
d0d6b7c5 | 5647 | |
6bfd98e7 | 5648 | if (p->raw_status_new) |
6b61353c KH |
5649 | update_status (p); |
5650 | if (! EQ (p->status, Qrun)) | |
5651 | error ("Process %s not running", SDATA (p->name)); | |
60f0fb11 | 5652 | if (p->outfd < 0) |
6b61353c | 5653 | error ("Output file descriptor of %s is closed", SDATA (p->name)); |
0fa1789e | 5654 | |
60f0fb11 | 5655 | coding = proc_encode_coding_system[p->outfd]; |
5bbf78c1 | 5656 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); |
486b111b | 5657 | |
ed7a4b2d KH |
5658 | if ((STRINGP (object) && STRING_MULTIBYTE (object)) |
5659 | || (BUFFERP (object) | |
a92e4183 KH |
5660 | && !NILP (XBUFFER (object)->enable_multibyte_characters)) |
5661 | || EQ (object, Qt)) | |
278bfdd6 | 5662 | { |
6b61353c | 5663 | if (!EQ (Vlast_coding_system_used, p->encode_coding_system)) |
278bfdd6 KH |
5664 | /* The coding system for encoding was changed to raw-text |
5665 | because we sent a unibyte text previously. Now we are | |
5666 | sending a multibyte text, thus we must encode it by the | |
6b61353c KH |
5667 | original coding system specified for the current process. */ |
5668 | setup_coding_system (p->encode_coding_system, coding); | |
e08bbb84 | 5669 | coding->src_multibyte = 1; |
278bfdd6 KH |
5670 | } |
5671 | else | |
5672 | { | |
a92e4183 KH |
5673 | /* For sending a unibyte text, character code conversion should |
5674 | not take place but EOL conversion should. So, setup raw-text | |
5675 | or one of the subsidiary if we have not yet done it. */ | |
5bbf78c1 | 5676 | if (CODING_REQUIRE_ENCODING (coding)) |
a92e4183 KH |
5677 | { |
5678 | if (CODING_REQUIRE_FLUSHING (coding)) | |
5679 | { | |
5680 | /* But, before changing the coding, we must flush out data. */ | |
5681 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
5682 | send_process (proc, "", 0, Qt); | |
8f924df7 | 5683 | coding->mode &= CODING_MODE_LAST_BLOCK; |
a92e4183 | 5684 | } |
5bbf78c1 KH |
5685 | setup_coding_system (raw_text_coding_system |
5686 | (Vlast_coding_system_used), | |
5687 | coding); | |
e08bbb84 | 5688 | coding->src_multibyte = 0; |
a92e4183 | 5689 | } |
278bfdd6 | 5690 | } |
a4a37e65 KH |
5691 | coding->dst_multibyte = 0; |
5692 | ||
ed7a4b2d | 5693 | if (CODING_REQUIRE_ENCODING (coding)) |
0fa1789e | 5694 | { |
5bbf78c1 | 5695 | coding->dst_object = Qt; |
ed7a4b2d | 5696 | if (BUFFERP (object)) |
0fa1789e | 5697 | { |
5bbf78c1 KH |
5698 | int from_byte, from, to; |
5699 | int save_pt, save_pt_byte; | |
5700 | struct buffer *cur = current_buffer; | |
5701 | ||
5702 | set_buffer_internal (XBUFFER (object)); | |
5703 | save_pt = PT, save_pt_byte = PT_BYTE; | |
5704 | ||
5705 | from_byte = PTR_BYTE_POS (buf); | |
5706 | from = BYTE_TO_CHAR (from_byte); | |
5707 | to = BYTE_TO_CHAR (from_byte + len); | |
5708 | TEMP_SET_PT_BOTH (from, from_byte); | |
5709 | encode_coding_object (coding, object, from, from_byte, | |
5710 | to, from_byte + len, Qt); | |
5711 | TEMP_SET_PT_BOTH (save_pt, save_pt_byte); | |
5712 | set_buffer_internal (cur); | |
ed7a4b2d KH |
5713 | } |
5714 | else if (STRINGP (object)) | |
5715 | { | |
5bbf78c1 | 5716 | encode_coding_string (coding, object, 1); |
0fa1789e | 5717 | } |
5bbf78c1 | 5718 | else |
452294c2 | 5719 | { |
5bbf78c1 KH |
5720 | coding->dst_object = make_unibyte_string (buf, len); |
5721 | coding->produced = len; | |
452294c2 | 5722 | } |
ed7a4b2d | 5723 | |
e7fbaa65 | 5724 | len = coding->produced; |
347f3cd3 AS |
5725 | object = coding->dst_object; |
5726 | buf = SDATA (object); | |
0fa1789e | 5727 | } |
d0d6b7c5 | 5728 | |
4556b700 RS |
5729 | if (pty_max_bytes == 0) |
5730 | { | |
5731 | #if defined (HAVE_FPATHCONF) && defined (_PC_MAX_CANON) | |
60f0fb11 | 5732 | pty_max_bytes = fpathconf (p->outfd, _PC_MAX_CANON); |
4556b700 RS |
5733 | if (pty_max_bytes < 0) |
5734 | pty_max_bytes = 250; | |
5735 | #else | |
5736 | pty_max_bytes = 250; | |
5737 | #endif | |
5738 | /* Deduct one, to leave space for the eof. */ | |
5739 | pty_max_bytes--; | |
5740 | } | |
5741 | ||
0daad115 GM |
5742 | /* 2000-09-21: Emacs 20.7, sparc-sun-solaris-2.6, GCC 2.95.2, |
5743 | CFLAGS="-g -O": The value of the parameter `proc' is clobbered | |
5744 | when returning with longjmp despite being declared volatile. */ | |
d0d6b7c5 | 5745 | if (!setjmp (send_process_frame)) |
0daad115 GM |
5746 | { |
5747 | process_sent_to = proc; | |
5748 | while (len > 0) | |
5749 | { | |
5750 | int this = len; | |
93b4f699 | 5751 | |
0daad115 GM |
5752 | /* Decide how much data we can send in one batch. |
5753 | Long lines need to be split into multiple batches. */ | |
60f0fb11 | 5754 | if (p->pty_flag) |
0daad115 | 5755 | { |
c0ec53ad | 5756 | /* Starting this at zero is always correct when not the first |
63136da6 | 5757 | iteration because the previous iteration ended by sending C-d. |
0daad115 GM |
5758 | It may not be correct for the first iteration |
5759 | if a partial line was sent in a separate send_process call. | |
5760 | If that proves worth handling, we need to save linepos | |
5761 | in the process object. */ | |
5762 | int linepos = 0; | |
5763 | unsigned char *ptr = (unsigned char *) buf; | |
5764 | unsigned char *end = (unsigned char *) buf + len; | |
5765 | ||
5766 | /* Scan through this text for a line that is too long. */ | |
5767 | while (ptr != end && linepos < pty_max_bytes) | |
5768 | { | |
5769 | if (*ptr == '\n') | |
5770 | linepos = 0; | |
5771 | else | |
5772 | linepos++; | |
5773 | ptr++; | |
5774 | } | |
5775 | /* If we found one, break the line there | |
5776 | and put in a C-d to force the buffer through. */ | |
5777 | this = ptr - buf; | |
5778 | } | |
93b4f699 | 5779 | |
0daad115 GM |
5780 | /* Send this batch, using one or more write calls. */ |
5781 | while (this > 0) | |
5782 | { | |
60f0fb11 | 5783 | int outfd = p->outfd; |
0daad115 | 5784 | old_sigpipe = (SIGTYPE (*) ()) signal (SIGPIPE, send_process_trap); |
e690ca94 KS |
5785 | #ifdef DATAGRAM_SOCKETS |
5786 | if (DATAGRAM_CHAN_P (outfd)) | |
5787 | { | |
5788 | rv = sendto (outfd, (char *) buf, this, | |
5789 | 0, datagram_address[outfd].sa, | |
5790 | datagram_address[outfd].len); | |
5791 | if (rv < 0 && errno == EMSGSIZE) | |
c8f44005 RS |
5792 | { |
5793 | signal (SIGPIPE, old_sigpipe); | |
5794 | report_file_error ("sending datagram", | |
5795 | Fcons (proc, Qnil)); | |
5796 | } | |
e690ca94 KS |
5797 | } |
5798 | else | |
5799 | #endif | |
6b61353c KH |
5800 | { |
5801 | rv = emacs_write (outfd, (char *) buf, this); | |
5802 | #ifdef ADAPTIVE_READ_BUFFERING | |
60f0fb11 SM |
5803 | if (p->read_output_delay > 0 |
5804 | && p->adaptive_read_buffering == 1) | |
6b61353c | 5805 | { |
60f0fb11 | 5806 | p->read_output_delay = 0; |
6b61353c | 5807 | process_output_delay_count--; |
60f0fb11 | 5808 | p->read_output_skip = 0; |
6b61353c KH |
5809 | } |
5810 | #endif | |
5811 | } | |
0daad115 | 5812 | signal (SIGPIPE, old_sigpipe); |
4556b700 | 5813 | |
0daad115 GM |
5814 | if (rv < 0) |
5815 | { | |
5816 | if (0 | |
d0d6b7c5 | 5817 | #ifdef EWOULDBLOCK |
0daad115 | 5818 | || errno == EWOULDBLOCK |
d0d6b7c5 JB |
5819 | #endif |
5820 | #ifdef EAGAIN | |
0daad115 | 5821 | || errno == EAGAIN |
d0d6b7c5 | 5822 | #endif |
0daad115 | 5823 | ) |
177c0ea7 | 5824 | /* Buffer is full. Wait, accepting input; |
0daad115 GM |
5825 | that may allow the program |
5826 | to finish doing output and read more. */ | |
5827 | { | |
0daad115 | 5828 | int offset = 0; |
4556b700 | 5829 | |
3433b6bd | 5830 | #ifdef BROKEN_PTY_READ_AFTER_EAGAIN |
0daad115 GM |
5831 | /* A gross hack to work around a bug in FreeBSD. |
5832 | In the following sequence, read(2) returns | |
5833 | bogus data: | |
5834 | ||
5835 | write(2) 1022 bytes | |
5836 | write(2) 954 bytes, get EAGAIN | |
5837 | read(2) 1024 bytes in process_read_output | |
5838 | read(2) 11 bytes in process_read_output | |
5839 | ||
5840 | That is, read(2) returns more bytes than have | |
5841 | ever been written successfully. The 1033 bytes | |
5842 | read are the 1022 bytes written successfully | |
5843 | after processing (for example with CRs added if | |
5844 | the terminal is set up that way which it is | |
5845 | here). The same bytes will be seen again in a | |
5846 | later read(2), without the CRs. */ | |
177c0ea7 | 5847 | |
0daad115 GM |
5848 | if (errno == EAGAIN) |
5849 | { | |
5850 | int flags = FWRITE; | |
60f0fb11 | 5851 | ioctl (p->outfd, TIOCFLUSH, &flags); |
0daad115 | 5852 | } |
3433b6bd | 5853 | #endif /* BROKEN_PTY_READ_AFTER_EAGAIN */ |
177c0ea7 | 5854 | |
0daad115 GM |
5855 | /* Running filters might relocate buffers or strings. |
5856 | Arrange to relocate BUF. */ | |
347f3cd3 | 5857 | if (BUFFERP (object)) |
0daad115 GM |
5858 | offset = BUF_PTR_BYTE_POS (XBUFFER (object), buf); |
5859 | else if (STRINGP (object)) | |
d5db4077 | 5860 | offset = buf - SDATA (object); |
0daad115 | 5861 | |
f3e6605c | 5862 | #ifdef EMACS_HAS_USECS |
214d6069 | 5863 | wait_reading_process_output (0, 20000, 0, 0, Qnil, NULL, 0); |
f3e6605c | 5864 | #else |
214d6069 | 5865 | wait_reading_process_output (1, 0, 0, 0, Qnil, NULL, 0); |
f3e6605c | 5866 | #endif |
4556b700 | 5867 | |
347f3cd3 | 5868 | if (BUFFERP (object)) |
0daad115 GM |
5869 | buf = BUF_BYTE_ADDRESS (XBUFFER (object), offset); |
5870 | else if (STRINGP (object)) | |
d5db4077 | 5871 | buf = offset + SDATA (object); |
4556b700 | 5872 | |
0daad115 GM |
5873 | rv = 0; |
5874 | } | |
5875 | else | |
5876 | /* This is a real error. */ | |
5877 | report_file_error ("writing to process", Fcons (proc, Qnil)); | |
5878 | } | |
5879 | buf += rv; | |
5880 | len -= rv; | |
5881 | this -= rv; | |
5882 | } | |
f76475ad | 5883 | |
d888760c | 5884 | /* If we sent just part of the string, put in an EOF (C-d) |
0daad115 GM |
5885 | to force it through, before we send the rest. */ |
5886 | if (len > 0) | |
5887 | Fprocess_send_eof (proc); | |
5888 | } | |
5889 | } | |
d0d6b7c5 JB |
5890 | else |
5891 | { | |
0ff69270 | 5892 | signal (SIGPIPE, old_sigpipe); |
0daad115 | 5893 | proc = process_sent_to; |
6b61353c | 5894 | p = XPROCESS (proc); |
6bfd98e7 | 5895 | p->raw_status_new = 0; |
6b61353c | 5896 | p->status = Fcons (Qexit, Fcons (make_number (256), Qnil)); |
60f0fb11 | 5897 | p->tick = ++process_tick; |
d0d6b7c5 | 5898 | deactivate_process (proc); |
6b61353c | 5899 | error ("SIGPIPE raised on process %s; closed it", SDATA (p->name)); |
d0d6b7c5 | 5900 | } |
6044e593 RS |
5901 | |
5902 | UNGCPRO; | |
d0d6b7c5 JB |
5903 | } |
5904 | ||
5905 | DEFUN ("process-send-region", Fprocess_send_region, Sprocess_send_region, | |
fdb82f93 PJ |
5906 | 3, 3, 0, |
5907 | doc: /* Send current contents of region as input to PROCESS. | |
5908 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5909 | nil, indicating the current buffer's process. | |
5910 | Called from program, takes three arguments, PROCESS, START and END. | |
5911 | If the region is more than 500 characters long, | |
5912 | it is sent in several bunches. This may happen even for shorter regions. | |
5913 | Output from processes can arrive in between bunches. */) | |
5914 | (process, start, end) | |
d0d6b7c5 JB |
5915 | Lisp_Object process, start, end; |
5916 | { | |
5917 | Lisp_Object proc; | |
1b234f64 | 5918 | int start1, end1; |
d0d6b7c5 JB |
5919 | |
5920 | proc = get_process (process); | |
5921 | validate_region (&start, &end); | |
1b234f64 KH |
5922 | |
5923 | if (XINT (start) < GPT && XINT (end) > GPT) | |
5924 | move_gap (XINT (start)); | |
5925 | ||
5926 | start1 = CHAR_TO_BYTE (XINT (start)); | |
5927 | end1 = CHAR_TO_BYTE (XINT (end)); | |
5928 | send_process (proc, BYTE_POS_ADDR (start1), end1 - start1, | |
5929 | Fcurrent_buffer ()); | |
5930 | ||
d0d6b7c5 JB |
5931 | return Qnil; |
5932 | } | |
5933 | ||
5934 | DEFUN ("process-send-string", Fprocess_send_string, Sprocess_send_string, | |
fdb82f93 PJ |
5935 | 2, 2, 0, |
5936 | doc: /* Send PROCESS the contents of STRING as input. | |
5937 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5938 | nil, indicating the current buffer's process. | |
5939 | If STRING is more than 500 characters long, | |
5940 | it is sent in several bunches. This may happen even for shorter strings. | |
5941 | Output from processes can arrive in between bunches. */) | |
5942 | (process, string) | |
d0d6b7c5 JB |
5943 | Lisp_Object process, string; |
5944 | { | |
5945 | Lisp_Object proc; | |
b7826503 | 5946 | CHECK_STRING (string); |
d0d6b7c5 | 5947 | proc = get_process (process); |
1b234f64 KH |
5948 | send_process (proc, SDATA (string), |
5949 | SBYTES (string), string); | |
d0d6b7c5 JB |
5950 | return Qnil; |
5951 | } | |
5952 | \f | |
16782258 JD |
5953 | /* Return the foreground process group for the tty/pty that |
5954 | the process P uses. */ | |
5955 | static int | |
5956 | emacs_get_tty_pgrp (p) | |
5957 | struct Lisp_Process *p; | |
5958 | { | |
5959 | int gid = -1; | |
5960 | ||
f3d9532b | 5961 | #ifdef TIOCGPGRP |
60f0fb11 | 5962 | if (ioctl (p->infd, TIOCGPGRP, &gid) == -1 && ! NILP (p->tty_name)) |
16782258 JD |
5963 | { |
5964 | int fd; | |
5965 | /* Some OS:es (Solaris 8/9) does not allow TIOCGPGRP from the | |
5966 | master side. Try the slave side. */ | |
eef60308 | 5967 | fd = emacs_open (SDATA (p->tty_name), O_RDONLY, 0); |
16782258 JD |
5968 | |
5969 | if (fd != -1) | |
5970 | { | |
5971 | ioctl (fd, TIOCGPGRP, &gid); | |
5972 | emacs_close (fd); | |
5973 | } | |
5974 | } | |
5975 | #endif /* defined (TIOCGPGRP ) */ | |
5976 | ||
5977 | return gid; | |
5978 | } | |
5979 | ||
b81ea5ef RS |
5980 | DEFUN ("process-running-child-p", Fprocess_running_child_p, |
5981 | Sprocess_running_child_p, 0, 1, 0, | |
fdb82f93 PJ |
5982 | doc: /* Return t if PROCESS has given the terminal to a child. |
5983 | If the operating system does not make it possible to find out, | |
5984 | return t unconditionally. */) | |
5985 | (process) | |
b81ea5ef RS |
5986 | Lisp_Object process; |
5987 | { | |
5988 | /* Initialize in case ioctl doesn't exist or gives an error, | |
5989 | in a way that will cause returning t. */ | |
16782258 | 5990 | int gid; |
b81ea5ef RS |
5991 | Lisp_Object proc; |
5992 | struct Lisp_Process *p; | |
5993 | ||
5994 | proc = get_process (process); | |
5995 | p = XPROCESS (proc); | |
5996 | ||
d888760c | 5997 | if (!EQ (p->type, Qreal)) |
b81ea5ef | 5998 | error ("Process %s is not a subprocess", |
d5db4077 | 5999 | SDATA (p->name)); |
60f0fb11 | 6000 | if (p->infd < 0) |
b81ea5ef | 6001 | error ("Process %s is not active", |
d5db4077 | 6002 | SDATA (p->name)); |
b81ea5ef | 6003 | |
16782258 | 6004 | gid = emacs_get_tty_pgrp (p); |
b81ea5ef | 6005 | |
6bfd98e7 | 6006 | if (gid == p->pid) |
b81ea5ef RS |
6007 | return Qnil; |
6008 | return Qt; | |
6009 | } | |
6010 | \f | |
d0d6b7c5 | 6011 | /* send a signal number SIGNO to PROCESS. |
b81ea5ef RS |
6012 | If CURRENT_GROUP is t, that means send to the process group |
6013 | that currently owns the terminal being used to communicate with PROCESS. | |
d0d6b7c5 | 6014 | This is used for various commands in shell mode. |
b81ea5ef RS |
6015 | If CURRENT_GROUP is lambda, that means send to the process group |
6016 | that currently owns the terminal, but only if it is NOT the shell itself. | |
6017 | ||
d0d6b7c5 | 6018 | If NOMSG is zero, insert signal-announcements into process's buffers |
b0310da4 JB |
6019 | right away. |
6020 | ||
6021 | If we can, we try to signal PROCESS by sending control characters | |
e333e864 | 6022 | down the pty. This allows us to signal inferiors who have changed |
b0310da4 | 6023 | their uid, for which killpg would return an EPERM error. */ |
d0d6b7c5 | 6024 | |
f9738840 | 6025 | static void |
d0d6b7c5 JB |
6026 | process_send_signal (process, signo, current_group, nomsg) |
6027 | Lisp_Object process; | |
6028 | int signo; | |
6029 | Lisp_Object current_group; | |
6030 | int nomsg; | |
6031 | { | |
6032 | Lisp_Object proc; | |
6033 | register struct Lisp_Process *p; | |
6034 | int gid; | |
6035 | int no_pgrp = 0; | |
6036 | ||
6037 | proc = get_process (process); | |
6038 | p = XPROCESS (proc); | |
6039 | ||
d888760c | 6040 | if (!EQ (p->type, Qreal)) |
d0d6b7c5 | 6041 | error ("Process %s is not a subprocess", |
d5db4077 | 6042 | SDATA (p->name)); |
60f0fb11 | 6043 | if (p->infd < 0) |
d0d6b7c5 | 6044 | error ("Process %s is not active", |
d5db4077 | 6045 | SDATA (p->name)); |
d0d6b7c5 | 6046 | |
60f0fb11 | 6047 | if (!p->pty_flag) |
d0d6b7c5 JB |
6048 | current_group = Qnil; |
6049 | ||
d0d6b7c5 | 6050 | /* If we are using pgrps, get a pgrp number and make it negative. */ |
2af70a0c RS |
6051 | if (NILP (current_group)) |
6052 | /* Send the signal to the shell's process group. */ | |
6bfd98e7 | 6053 | gid = p->pid; |
2af70a0c | 6054 | else |
d0d6b7c5 | 6055 | { |
b0310da4 | 6056 | #ifdef SIGNALS_VIA_CHARACTERS |
d0d6b7c5 JB |
6057 | /* If possible, send signals to the entire pgrp |
6058 | by sending an input character to it. */ | |
b0310da4 | 6059 | |
6be429b1 | 6060 | /* TERMIOS is the latest and bestest, and seems most likely to |
63136da6 | 6061 | work. If the system has it, use it. */ |
6be429b1 JB |
6062 | #ifdef HAVE_TERMIOS |
6063 | struct termios t; | |
7f916a36 RS |
6064 | cc_t *sig_char = NULL; |
6065 | ||
60f0fb11 | 6066 | tcgetattr (p->infd, &t); |
6be429b1 JB |
6067 | |
6068 | switch (signo) | |
6069 | { | |
6070 | case SIGINT: | |
7f916a36 RS |
6071 | sig_char = &t.c_cc[VINTR]; |
6072 | break; | |
6be429b1 JB |
6073 | |
6074 | case SIGQUIT: | |
7f916a36 RS |
6075 | sig_char = &t.c_cc[VQUIT]; |
6076 | break; | |
6be429b1 JB |
6077 | |
6078 | case SIGTSTP: | |
d0adf46f | 6079 | #if defined (VSWTCH) && !defined (PREFER_VSUSP) |
7f916a36 | 6080 | sig_char = &t.c_cc[VSWTCH]; |
6be429b1 | 6081 | #else |
7f916a36 | 6082 | sig_char = &t.c_cc[VSUSP]; |
6be429b1 | 6083 | #endif |
7f916a36 | 6084 | break; |
6be429b1 JB |
6085 | } |
6086 | ||
ca4313d5 | 6087 | if (sig_char && *sig_char != CDISABLE) |
f1c206fc RS |
6088 | { |
6089 | send_process (proc, sig_char, 1, Qnil); | |
6090 | return; | |
6091 | } | |
6092 | /* If we can't send the signal with a character, | |
6093 | fall through and send it another way. */ | |
6be429b1 JB |
6094 | #else /* ! HAVE_TERMIOS */ |
6095 | ||
b0310da4 JB |
6096 | /* On Berkeley descendants, the following IOCTL's retrieve the |
6097 | current control characters. */ | |
d0d6b7c5 | 6098 | #if defined (TIOCGLTC) && defined (TIOCGETC) |
b0310da4 | 6099 | |
d0d6b7c5 JB |
6100 | struct tchars c; |
6101 | struct ltchars lc; | |
6102 | ||
6103 | switch (signo) | |
6104 | { | |
6105 | case SIGINT: | |
60f0fb11 | 6106 | ioctl (p->infd, TIOCGETC, &c); |
4556b700 | 6107 | send_process (proc, &c.t_intrc, 1, Qnil); |
f9738840 | 6108 | return; |
d0d6b7c5 | 6109 | case SIGQUIT: |
60f0fb11 | 6110 | ioctl (p->infd, TIOCGETC, &c); |
4556b700 | 6111 | send_process (proc, &c.t_quitc, 1, Qnil); |
f9738840 | 6112 | return; |
0ad77c54 | 6113 | #ifdef SIGTSTP |
d0d6b7c5 | 6114 | case SIGTSTP: |
60f0fb11 | 6115 | ioctl (p->infd, TIOCGLTC, &lc); |
4556b700 | 6116 | send_process (proc, &lc.t_suspc, 1, Qnil); |
f9738840 | 6117 | return; |
b0310da4 | 6118 | #endif /* ! defined (SIGTSTP) */ |
d0d6b7c5 | 6119 | } |
b0310da4 JB |
6120 | |
6121 | #else /* ! defined (TIOCGLTC) && defined (TIOCGETC) */ | |
6122 | ||
6123 | /* On SYSV descendants, the TCGETA ioctl retrieves the current control | |
6124 | characters. */ | |
6125 | #ifdef TCGETA | |
d0d6b7c5 JB |
6126 | struct termio t; |
6127 | switch (signo) | |
6128 | { | |
6129 | case SIGINT: | |
60f0fb11 | 6130 | ioctl (p->infd, TCGETA, &t); |
4556b700 | 6131 | send_process (proc, &t.c_cc[VINTR], 1, Qnil); |
f9738840 | 6132 | return; |
d0d6b7c5 | 6133 | case SIGQUIT: |
60f0fb11 | 6134 | ioctl (p->infd, TCGETA, &t); |
4556b700 | 6135 | send_process (proc, &t.c_cc[VQUIT], 1, Qnil); |
f9738840 | 6136 | return; |
7d79e3b4 | 6137 | #ifdef SIGTSTP |
d0d6b7c5 | 6138 | case SIGTSTP: |
60f0fb11 | 6139 | ioctl (p->infd, TCGETA, &t); |
4556b700 | 6140 | send_process (proc, &t.c_cc[VSWTCH], 1, Qnil); |
f9738840 | 6141 | return; |
b0310da4 | 6142 | #endif /* ! defined (SIGTSTP) */ |
d0d6b7c5 | 6143 | } |
b0310da4 JB |
6144 | #else /* ! defined (TCGETA) */ |
6145 | Your configuration files are messed up. | |
6146 | /* If your system configuration files define SIGNALS_VIA_CHARACTERS, | |
6147 | you'd better be using one of the alternatives above! */ | |
6148 | #endif /* ! defined (TCGETA) */ | |
6149 | #endif /* ! defined (TIOCGLTC) && defined (TIOCGETC) */ | |
eef60308 | 6150 | /* In this case, the code above should alway return. */ |
20505336 | 6151 | abort (); |
f1c206fc RS |
6152 | #endif /* ! defined HAVE_TERMIOS */ |
6153 | ||
6154 | /* The code above may fall through if it can't | |
6155 | handle the signal. */ | |
20505336 | 6156 | #endif /* defined (SIGNALS_VIA_CHARACTERS) */ |
d0d6b7c5 | 6157 | |
177c0ea7 | 6158 | #ifdef TIOCGPGRP |
2af70a0c | 6159 | /* Get the current pgrp using the tty itself, if we have that. |
d0d6b7c5 JB |
6160 | Otherwise, use the pty to get the pgrp. |
6161 | On pfa systems, saka@pfu.fujitsu.co.JP writes: | |
b0310da4 JB |
6162 | "TIOCGPGRP symbol defined in sys/ioctl.h at E50. |
6163 | But, TIOCGPGRP does not work on E50 ;-P works fine on E60" | |
d0d6b7c5 JB |
6164 | His patch indicates that if TIOCGPGRP returns an error, then |
6165 | we should just assume that p->pid is also the process group id. */ | |
d0d6b7c5 | 6166 | |
16782258 | 6167 | gid = emacs_get_tty_pgrp (p); |
f3d9532b | 6168 | |
16782258 JD |
6169 | if (gid == -1) |
6170 | /* If we can't get the information, assume | |
6171 | the shell owns the tty. */ | |
6bfd98e7 | 6172 | gid = p->pid; |
2af70a0c RS |
6173 | |
6174 | /* It is not clear whether anything really can set GID to -1. | |
6175 | Perhaps on some system one of those ioctls can or could do so. | |
6176 | Or perhaps this is vestigial. */ | |
d0d6b7c5 JB |
6177 | if (gid == -1) |
6178 | no_pgrp = 1; | |
b0310da4 | 6179 | #else /* ! defined (TIOCGPGRP ) */ |
301c3fe4 JB |
6180 | /* Can't select pgrps on this system, so we know that |
6181 | the child itself heads the pgrp. */ | |
6bfd98e7 | 6182 | gid = p->pid; |
301c3fe4 | 6183 | #endif /* ! defined (TIOCGPGRP ) */ |
b81ea5ef RS |
6184 | |
6185 | /* If current_group is lambda, and the shell owns the terminal, | |
6186 | don't send any signal. */ | |
6bfd98e7 | 6187 | if (EQ (current_group, Qlambda) && gid == p->pid) |
b81ea5ef | 6188 | return; |
d0d6b7c5 | 6189 | } |
d0d6b7c5 JB |
6190 | |
6191 | switch (signo) | |
6192 | { | |
6193 | #ifdef SIGCONT | |
6194 | case SIGCONT: | |
6bfd98e7 | 6195 | p->raw_status_new = 0; |
d0d6b7c5 | 6196 | p->status = Qrun; |
60f0fb11 | 6197 | p->tick = ++process_tick; |
d0d6b7c5 | 6198 | if (!nomsg) |
ff6daed3 | 6199 | status_notify (NULL); |
d0d6b7c5 | 6200 | break; |
301c3fe4 | 6201 | #endif /* ! defined (SIGCONT) */ |
d0d6b7c5 | 6202 | case SIGINT: |
d0d6b7c5 | 6203 | case SIGQUIT: |
d0d6b7c5 | 6204 | case SIGKILL: |
60f0fb11 | 6205 | flush_pending_output (p->infd); |
d0d6b7c5 JB |
6206 | break; |
6207 | } | |
6208 | ||
6209 | /* If we don't have process groups, send the signal to the immediate | |
6210 | subprocess. That isn't really right, but it's better than any | |
6211 | obvious alternative. */ | |
6212 | if (no_pgrp) | |
6213 | { | |
6bfd98e7 | 6214 | kill (p->pid, signo); |
d0d6b7c5 JB |
6215 | return; |
6216 | } | |
6217 | ||
6218 | /* gid may be a pid, or minus a pgrp's number */ | |
6219 | #ifdef TIOCSIGSEND | |
6220 | if (!NILP (current_group)) | |
16782258 | 6221 | { |
60f0fb11 | 6222 | if (ioctl (p->infd, TIOCSIGSEND, signo) == -1) |
16782258 JD |
6223 | EMACS_KILLPG (gid, signo); |
6224 | } | |
d0d6b7c5 JB |
6225 | else |
6226 | { | |
6bfd98e7 | 6227 | gid = - p->pid; |
d0d6b7c5 JB |
6228 | kill (gid, signo); |
6229 | } | |
301c3fe4 | 6230 | #else /* ! defined (TIOCSIGSEND) */ |
2af70a0c | 6231 | EMACS_KILLPG (gid, signo); |
301c3fe4 | 6232 | #endif /* ! defined (TIOCSIGSEND) */ |
d0d6b7c5 JB |
6233 | } |
6234 | ||
6235 | DEFUN ("interrupt-process", Finterrupt_process, Sinterrupt_process, 0, 2, 0, | |
fdb82f93 PJ |
6236 | doc: /* Interrupt process PROCESS. |
6237 | PROCESS may be a process, a buffer, or the name of a process or buffer. | |
f3d9532b | 6238 | No arg or nil means current buffer's process. |
fdb82f93 PJ |
6239 | Second arg CURRENT-GROUP non-nil means send signal to |
6240 | the current process-group of the process's controlling terminal | |
6241 | rather than to the process's own process group. | |
6242 | If the process is a shell, this means interrupt current subjob | |
6243 | rather than the shell. | |
6244 | ||
6245 | If CURRENT-GROUP is `lambda', and if the shell owns the terminal, | |
6246 | don't send the signal. */) | |
6247 | (process, current_group) | |
d0d6b7c5 JB |
6248 | Lisp_Object process, current_group; |
6249 | { | |
6250 | process_send_signal (process, SIGINT, current_group, 0); | |
6251 | return process; | |
6252 | } | |
6253 | ||
6254 | DEFUN ("kill-process", Fkill_process, Skill_process, 0, 2, 0, | |
fdb82f93 PJ |
6255 | doc: /* Kill process PROCESS. May be process or name of one. |
6256 | See function `interrupt-process' for more details on usage. */) | |
6257 | (process, current_group) | |
d0d6b7c5 JB |
6258 | Lisp_Object process, current_group; |
6259 | { | |
6260 | process_send_signal (process, SIGKILL, current_group, 0); | |
6261 | return process; | |
6262 | } | |
6263 | ||
6264 | DEFUN ("quit-process", Fquit_process, Squit_process, 0, 2, 0, | |
fdb82f93 PJ |
6265 | doc: /* Send QUIT signal to process PROCESS. May be process or name of one. |
6266 | See function `interrupt-process' for more details on usage. */) | |
6267 | (process, current_group) | |
d0d6b7c5 JB |
6268 | Lisp_Object process, current_group; |
6269 | { | |
6270 | process_send_signal (process, SIGQUIT, current_group, 0); | |
6271 | return process; | |
6272 | } | |
6273 | ||
6274 | DEFUN ("stop-process", Fstop_process, Sstop_process, 0, 2, 0, | |
fdb82f93 | 6275 | doc: /* Stop process PROCESS. May be process or name of one. |
177c0ea7 | 6276 | See function `interrupt-process' for more details on usage. |
d888760c GM |
6277 | If PROCESS is a network or serial process, inhibit handling of incoming |
6278 | traffic. */) | |
fdb82f93 | 6279 | (process, current_group) |
d0d6b7c5 JB |
6280 | Lisp_Object process, current_group; |
6281 | { | |
e690ca94 | 6282 | #ifdef HAVE_SOCKETS |
d888760c | 6283 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
6284 | { |
6285 | struct Lisp_Process *p; | |
177c0ea7 | 6286 | |
e690ca94 KS |
6287 | p = XPROCESS (process); |
6288 | if (NILP (p->command) | |
60f0fb11 | 6289 | && p->infd >= 0) |
e690ca94 | 6290 | { |
60f0fb11 SM |
6291 | FD_CLR (p->infd, &input_wait_mask); |
6292 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
e690ca94 KS |
6293 | } |
6294 | p->command = Qt; | |
6295 | return process; | |
6296 | } | |
6297 | #endif | |
d0d6b7c5 | 6298 | #ifndef SIGTSTP |
a9a73d6c | 6299 | error ("No SIGTSTP support"); |
d0d6b7c5 JB |
6300 | #else |
6301 | process_send_signal (process, SIGTSTP, current_group, 0); | |
6302 | #endif | |
6303 | return process; | |
6304 | } | |
6305 | ||
6306 | DEFUN ("continue-process", Fcontinue_process, Scontinue_process, 0, 2, 0, | |
fdb82f93 | 6307 | doc: /* Continue process PROCESS. May be process or name of one. |
177c0ea7 | 6308 | See function `interrupt-process' for more details on usage. |
d888760c GM |
6309 | If PROCESS is a network or serial process, resume handling of incoming |
6310 | traffic. */) | |
fdb82f93 | 6311 | (process, current_group) |
d0d6b7c5 JB |
6312 | Lisp_Object process, current_group; |
6313 | { | |
e690ca94 | 6314 | #ifdef HAVE_SOCKETS |
d888760c | 6315 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
6316 | { |
6317 | struct Lisp_Process *p; | |
6318 | ||
6319 | p = XPROCESS (process); | |
6320 | if (EQ (p->command, Qt) | |
60f0fb11 | 6321 | && p->infd >= 0 |
e690ca94 KS |
6322 | && (!EQ (p->filter, Qt) || EQ (p->status, Qlisten))) |
6323 | { | |
60f0fb11 SM |
6324 | FD_SET (p->infd, &input_wait_mask); |
6325 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
d888760c GM |
6326 | #ifdef WINDOWSNT |
6327 | if (fd_info[ p->infd ].flags & FILE_SERIAL) | |
6328 | PurgeComm (fd_info[ p->infd ].hnd, PURGE_RXABORT | PURGE_RXCLEAR); | |
6329 | #endif | |
6330 | #ifdef HAVE_TERMIOS | |
6331 | tcflush (p->infd, TCIFLUSH); | |
6332 | #endif | |
e690ca94 KS |
6333 | } |
6334 | p->command = Qnil; | |
6335 | return process; | |
6336 | } | |
6337 | #endif | |
d0d6b7c5 JB |
6338 | #ifdef SIGCONT |
6339 | process_send_signal (process, SIGCONT, current_group, 0); | |
6340 | #else | |
a9a73d6c | 6341 | error ("No SIGCONT support"); |
d0d6b7c5 JB |
6342 | #endif |
6343 | return process; | |
6344 | } | |
6345 | ||
6346 | DEFUN ("signal-process", Fsignal_process, Ssignal_process, | |
cdd5ea86 KS |
6347 | 2, 2, "sProcess (name or number): \nnSignal code: ", |
6348 | doc: /* Send PROCESS the signal with code SIGCODE. | |
648f6edf | 6349 | PROCESS may also be a number specifying the process id of the |
cdd5ea86 KS |
6350 | process to signal; in this case, the process need not be a child of |
6351 | this Emacs. | |
fdb82f93 | 6352 | SIGCODE may be an integer, or a symbol whose name is a signal name. */) |
cdd5ea86 KS |
6353 | (process, sigcode) |
6354 | Lisp_Object process, sigcode; | |
d0d6b7c5 | 6355 | { |
6bfd98e7 | 6356 | pid_t pid; |
cdd5ea86 KS |
6357 | |
6358 | if (INTEGERP (process)) | |
6359 | { | |
6bfd98e7 SM |
6360 | pid = XINT (process); |
6361 | goto got_it; | |
6362 | } | |
6363 | ||
6364 | if (FLOATP (process)) | |
6365 | { | |
648f6edf | 6366 | pid = (pid_t) XFLOAT_DATA (process); |
cdd5ea86 KS |
6367 | goto got_it; |
6368 | } | |
6369 | ||
6370 | if (STRINGP (process)) | |
6371 | { | |
6372 | Lisp_Object tem; | |
6373 | if (tem = Fget_process (process), NILP (tem)) | |
6374 | { | |
6bfd98e7 SM |
6375 | pid = XINT (Fstring_to_number (process, make_number (10))); |
6376 | if (pid > 0) | |
cdd5ea86 KS |
6377 | goto got_it; |
6378 | } | |
6379 | process = tem; | |
6380 | } | |
6381 | else | |
6382 | process = get_process (process); | |
177c0ea7 | 6383 | |
cdd5ea86 KS |
6384 | if (NILP (process)) |
6385 | return process; | |
6386 | ||
6387 | CHECK_PROCESS (process); | |
6388 | pid = XPROCESS (process)->pid; | |
6bfd98e7 | 6389 | if (pid <= 0) |
cdd5ea86 KS |
6390 | error ("Cannot signal process %s", SDATA (XPROCESS (process)->name)); |
6391 | ||
6392 | got_it: | |
4766242d | 6393 | |
59324b1d | 6394 | #define parse_signal(NAME, VALUE) \ |
05131107 | 6395 | else if (!xstrcasecmp (name, NAME)) \ |
4766242d RS |
6396 | XSETINT (sigcode, VALUE) |
6397 | ||
6398 | if (INTEGERP (sigcode)) | |
6399 | ; | |
6400 | else | |
6401 | { | |
6402 | unsigned char *name; | |
6403 | ||
b7826503 | 6404 | CHECK_SYMBOL (sigcode); |
d5db4077 | 6405 | name = SDATA (SYMBOL_NAME (sigcode)); |
4766242d | 6406 | |
ec0f21f4 | 6407 | if (!strncmp(name, "SIG", 3) || !strncmp(name, "sig", 3)) |
675984ed KS |
6408 | name += 3; |
6409 | ||
4766242d RS |
6410 | if (0) |
6411 | ; | |
59324b1d KS |
6412 | #ifdef SIGUSR1 |
6413 | parse_signal ("usr1", SIGUSR1); | |
6414 | #endif | |
6415 | #ifdef SIGUSR2 | |
6416 | parse_signal ("usr2", SIGUSR2); | |
6417 | #endif | |
6418 | #ifdef SIGTERM | |
6419 | parse_signal ("term", SIGTERM); | |
6420 | #endif | |
4766242d | 6421 | #ifdef SIGHUP |
59324b1d | 6422 | parse_signal ("hup", SIGHUP); |
4766242d RS |
6423 | #endif |
6424 | #ifdef SIGINT | |
59324b1d | 6425 | parse_signal ("int", SIGINT); |
4766242d RS |
6426 | #endif |
6427 | #ifdef SIGQUIT | |
59324b1d | 6428 | parse_signal ("quit", SIGQUIT); |
4766242d RS |
6429 | #endif |
6430 | #ifdef SIGILL | |
59324b1d | 6431 | parse_signal ("ill", SIGILL); |
4766242d RS |
6432 | #endif |
6433 | #ifdef SIGABRT | |
59324b1d | 6434 | parse_signal ("abrt", SIGABRT); |
4766242d RS |
6435 | #endif |
6436 | #ifdef SIGEMT | |
59324b1d | 6437 | parse_signal ("emt", SIGEMT); |
4766242d RS |
6438 | #endif |
6439 | #ifdef SIGKILL | |
59324b1d | 6440 | parse_signal ("kill", SIGKILL); |
4766242d RS |
6441 | #endif |
6442 | #ifdef SIGFPE | |
59324b1d | 6443 | parse_signal ("fpe", SIGFPE); |
4766242d RS |
6444 | #endif |
6445 | #ifdef SIGBUS | |
59324b1d | 6446 | parse_signal ("bus", SIGBUS); |
4766242d RS |
6447 | #endif |
6448 | #ifdef SIGSEGV | |
59324b1d | 6449 | parse_signal ("segv", SIGSEGV); |
4766242d RS |
6450 | #endif |
6451 | #ifdef SIGSYS | |
59324b1d | 6452 | parse_signal ("sys", SIGSYS); |
4766242d RS |
6453 | #endif |
6454 | #ifdef SIGPIPE | |
59324b1d | 6455 | parse_signal ("pipe", SIGPIPE); |
4766242d RS |
6456 | #endif |
6457 | #ifdef SIGALRM | |
59324b1d | 6458 | parse_signal ("alrm", SIGALRM); |
4766242d RS |
6459 | #endif |
6460 | #ifdef SIGURG | |
59324b1d | 6461 | parse_signal ("urg", SIGURG); |
4766242d RS |
6462 | #endif |
6463 | #ifdef SIGSTOP | |
59324b1d | 6464 | parse_signal ("stop", SIGSTOP); |
4766242d RS |
6465 | #endif |
6466 | #ifdef SIGTSTP | |
59324b1d | 6467 | parse_signal ("tstp", SIGTSTP); |
4766242d RS |
6468 | #endif |
6469 | #ifdef SIGCONT | |
59324b1d | 6470 | parse_signal ("cont", SIGCONT); |
4766242d RS |
6471 | #endif |
6472 | #ifdef SIGCHLD | |
59324b1d | 6473 | parse_signal ("chld", SIGCHLD); |
4766242d RS |
6474 | #endif |
6475 | #ifdef SIGTTIN | |
59324b1d | 6476 | parse_signal ("ttin", SIGTTIN); |
4766242d RS |
6477 | #endif |
6478 | #ifdef SIGTTOU | |
59324b1d | 6479 | parse_signal ("ttou", SIGTTOU); |
4766242d RS |
6480 | #endif |
6481 | #ifdef SIGIO | |
59324b1d | 6482 | parse_signal ("io", SIGIO); |
4766242d RS |
6483 | #endif |
6484 | #ifdef SIGXCPU | |
59324b1d | 6485 | parse_signal ("xcpu", SIGXCPU); |
4766242d RS |
6486 | #endif |
6487 | #ifdef SIGXFSZ | |
59324b1d | 6488 | parse_signal ("xfsz", SIGXFSZ); |
4766242d RS |
6489 | #endif |
6490 | #ifdef SIGVTALRM | |
59324b1d | 6491 | parse_signal ("vtalrm", SIGVTALRM); |
4766242d RS |
6492 | #endif |
6493 | #ifdef SIGPROF | |
59324b1d | 6494 | parse_signal ("prof", SIGPROF); |
4766242d RS |
6495 | #endif |
6496 | #ifdef SIGWINCH | |
59324b1d | 6497 | parse_signal ("winch", SIGWINCH); |
4766242d RS |
6498 | #endif |
6499 | #ifdef SIGINFO | |
59324b1d | 6500 | parse_signal ("info", SIGINFO); |
4766242d RS |
6501 | #endif |
6502 | else | |
9fa195a2 | 6503 | error ("Undefined signal name %s", name); |
4766242d RS |
6504 | } |
6505 | ||
59324b1d | 6506 | #undef parse_signal |
4766242d | 6507 | |
6bfd98e7 | 6508 | return make_number (kill (pid, XINT (sigcode))); |
d0d6b7c5 JB |
6509 | } |
6510 | ||
6511 | DEFUN ("process-send-eof", Fprocess_send_eof, Sprocess_send_eof, 0, 1, 0, | |
fdb82f93 PJ |
6512 | doc: /* Make PROCESS see end-of-file in its input. |
6513 | EOF comes after any text already sent to it. | |
6514 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
6515 | nil, indicating the current buffer's process. | |
6516 | If PROCESS is a network connection, or is a process communicating | |
6517 | through a pipe (as opposed to a pty), then you cannot send any more | |
d888760c GM |
6518 | text to PROCESS after you call this function. |
6519 | If PROCESS is a serial process, wait until all output written to the | |
6520 | process has been transmitted to the serial port. */) | |
fdb82f93 | 6521 | (process) |
d0d6b7c5 JB |
6522 | Lisp_Object process; |
6523 | { | |
6524 | Lisp_Object proc; | |
de7fbd09 | 6525 | struct coding_system *coding; |
d0d6b7c5 | 6526 | |
e690ca94 KS |
6527 | if (DATAGRAM_CONN_P (process)) |
6528 | return process; | |
6529 | ||
d0d6b7c5 | 6530 | proc = get_process (process); |
60f0fb11 | 6531 | coding = proc_encode_coding_system[XPROCESS (proc)->outfd]; |
577d03d5 RS |
6532 | |
6533 | /* Make sure the process is really alive. */ | |
6bfd98e7 | 6534 | if (XPROCESS (proc)->raw_status_new) |
577d03d5 RS |
6535 | update_status (XPROCESS (proc)); |
6536 | if (! EQ (XPROCESS (proc)->status, Qrun)) | |
d5db4077 | 6537 | error ("Process %s not running", SDATA (XPROCESS (proc)->name)); |
577d03d5 | 6538 | |
de7fbd09 KH |
6539 | if (CODING_REQUIRE_FLUSHING (coding)) |
6540 | { | |
6541 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
6542 | send_process (proc, "", 0, Qnil); | |
6543 | } | |
6544 | ||
60f0fb11 | 6545 | if (XPROCESS (proc)->pty_flag) |
4556b700 | 6546 | send_process (proc, "\004", 1, Qnil); |
a879ee6f | 6547 | else if (EQ (XPROCESS (proc)->type, Qserial)) |
d888760c GM |
6548 | { |
6549 | #ifdef HAVE_TERMIOS | |
6550 | if (tcdrain (XPROCESS (proc)->outfd) != 0) | |
6551 | error ("tcdrain() failed: %s", emacs_strerror (errno)); | |
6552 | #endif | |
6553 | /* Do nothing on Windows because writes are blocking. */ | |
6554 | } | |
d0d6b7c5 JB |
6555 | else |
6556 | { | |
4525f571 RS |
6557 | int old_outfd, new_outfd; |
6558 | ||
93853f3d | 6559 | #ifdef HAVE_SHUTDOWN |
02f55c4b RS |
6560 | /* If this is a network connection, or socketpair is used |
6561 | for communication with the subprocess, call shutdown to cause EOF. | |
6562 | (In some old system, shutdown to socketpair doesn't work. | |
6563 | Then we just can't win.) */ | |
a879ee6f | 6564 | if (EQ (XPROCESS (proc)->type, Qnetwork) |
60f0fb11 SM |
6565 | || XPROCESS (proc)->outfd == XPROCESS (proc)->infd) |
6566 | shutdown (XPROCESS (proc)->outfd, 1); | |
02f55c4b | 6567 | /* In case of socketpair, outfd == infd, so don't close it. */ |
60f0fb11 SM |
6568 | if (XPROCESS (proc)->outfd != XPROCESS (proc)->infd) |
6569 | emacs_close (XPROCESS (proc)->outfd); | |
93853f3d | 6570 | #else /* not HAVE_SHUTDOWN */ |
60f0fb11 | 6571 | emacs_close (XPROCESS (proc)->outfd); |
93853f3d | 6572 | #endif /* not HAVE_SHUTDOWN */ |
68c45bf0 | 6573 | new_outfd = emacs_open (NULL_DEVICE, O_WRONLY, 0); |
27448380 RS |
6574 | if (new_outfd < 0) |
6575 | abort (); | |
60f0fb11 | 6576 | old_outfd = XPROCESS (proc)->outfd; |
4525f571 RS |
6577 | |
6578 | if (!proc_encode_coding_system[new_outfd]) | |
6579 | proc_encode_coding_system[new_outfd] | |
6580 | = (struct coding_system *) xmalloc (sizeof (struct coding_system)); | |
6581 | bcopy (proc_encode_coding_system[old_outfd], | |
6582 | proc_encode_coding_system[new_outfd], | |
6583 | sizeof (struct coding_system)); | |
6584 | bzero (proc_encode_coding_system[old_outfd], | |
6585 | sizeof (struct coding_system)); | |
6586 | ||
60f0fb11 | 6587 | XPROCESS (proc)->outfd = new_outfd; |
d0d6b7c5 | 6588 | } |
d0d6b7c5 JB |
6589 | return process; |
6590 | } | |
6591 | ||
6592 | /* Kill all processes associated with `buffer'. | |
3fed8ad5 | 6593 | If `buffer' is nil, kill all processes */ |
d0d6b7c5 | 6594 | |
6b53bb85 | 6595 | void |
d0d6b7c5 JB |
6596 | kill_buffer_processes (buffer) |
6597 | Lisp_Object buffer; | |
6598 | { | |
6599 | Lisp_Object tail, proc; | |
6600 | ||
8e50cc2d | 6601 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6602 | { |
70949dac | 6603 | proc = XCDR (XCAR (tail)); |
8e50cc2d | 6604 | if (PROCESSP (proc) |
d0d6b7c5 JB |
6605 | && (NILP (buffer) || EQ (XPROCESS (proc)->buffer, buffer))) |
6606 | { | |
d888760c | 6607 | if (NETCONN_P (proc) || SERIALCONN_P (proc)) |
e1ab4959 | 6608 | Fdelete_process (proc); |
60f0fb11 | 6609 | else if (XPROCESS (proc)->infd >= 0) |
d0d6b7c5 JB |
6610 | process_send_signal (proc, SIGHUP, Qnil, 1); |
6611 | } | |
6612 | } | |
6613 | } | |
6614 | \f | |
3fed8ad5 GM |
6615 | /* On receipt of a signal that a child status has changed, loop asking |
6616 | about children with changed statuses until the system says there | |
6617 | are no more. | |
177c0ea7 | 6618 | |
3fed8ad5 GM |
6619 | All we do is change the status; we do not run sentinels or print |
6620 | notifications. That is saved for the next time keyboard input is | |
6621 | done, in order to avoid timing errors. | |
6622 | ||
6623 | ** WARNING: this can be called during garbage collection. | |
6624 | Therefore, it must not be fooled by the presence of mark bits in | |
6625 | Lisp objects. | |
6626 | ||
6627 | ** USG WARNING: Although it is not obvious from the documentation | |
6628 | in signal(2), on a USG system the SIGCLD handler MUST NOT call | |
6629 | signal() before executing at least one wait(), otherwise the | |
6630 | handler will be called again, resulting in an infinite loop. The | |
6631 | relevant portion of the documentation reads "SIGCLD signals will be | |
6632 | queued and the signal-catching function will be continually | |
6633 | reentered until the queue is empty". Invoking signal() causes the | |
6634 | kernel to reexamine the SIGCLD queue. Fred Fish, UniSoft Systems | |
6b61353c KH |
6635 | Inc. |
6636 | ||
6637 | ** Malloc WARNING: This should never call malloc either directly or | |
6638 | indirectly; if it does, that is a bug */ | |
d0d6b7c5 | 6639 | |
a5cfdda8 | 6640 | #ifdef SIGCHLD |
d0d6b7c5 JB |
6641 | SIGTYPE |
6642 | sigchld_handler (signo) | |
6643 | int signo; | |
6644 | { | |
6645 | int old_errno = errno; | |
6646 | Lisp_Object proc; | |
6647 | register struct Lisp_Process *p; | |
6be429b1 | 6648 | extern EMACS_TIME *input_available_clear_time; |
d0d6b7c5 | 6649 | |
333f1b6f JD |
6650 | SIGNAL_THREAD_CHECK (signo); |
6651 | ||
d0d6b7c5 JB |
6652 | while (1) |
6653 | { | |
8e050977 | 6654 | pid_t pid; |
bba104c1 | 6655 | int w; |
d0d6b7c5 JB |
6656 | Lisp_Object tail; |
6657 | ||
6658 | #ifdef WNOHANG | |
6659 | #ifndef WUNTRACED | |
6660 | #define WUNTRACED 0 | |
6661 | #endif /* no WUNTRACED */ | |
6662 | /* Keep trying to get a status until we get a definitive result. */ | |
e7d4a904 | 6663 | do |
63136da6 | 6664 | { |
29ed4d51 CY |
6665 | errno = 0; |
6666 | pid = wait3 (&w, WNOHANG | WUNTRACED, 0); | |
29ed4d51 | 6667 | } |
e7d4a904 | 6668 | while (pid < 0 && errno == EINTR); |
d0d6b7c5 JB |
6669 | |
6670 | if (pid <= 0) | |
6671 | { | |
3fed8ad5 GM |
6672 | /* PID == 0 means no processes found, PID == -1 means a real |
6673 | failure. We have done all our job, so return. */ | |
d0d6b7c5 JB |
6674 | |
6675 | /* USG systems forget handlers when they are used; | |
6676 | must reestablish each time */ | |
3c0ee47b | 6677 | #if defined (USG) && !defined (POSIX_SIGNALS) |
d0d6b7c5 | 6678 | signal (signo, sigchld_handler); /* WARNING - must come after wait3() */ |
d0d6b7c5 JB |
6679 | #endif |
6680 | errno = old_errno; | |
6681 | return; | |
6682 | } | |
6683 | #else | |
6684 | pid = wait (&w); | |
6685 | #endif /* no WNOHANG */ | |
6686 | ||
6687 | /* Find the process that signaled us, and record its status. */ | |
6688 | ||
a5cfdda8 | 6689 | /* The process can have been deleted by Fdelete_process. */ |
8e50cc2d | 6690 | for (tail = deleted_pid_list; CONSP (tail); tail = XCDR (tail)) |
a5cfdda8 | 6691 | { |
8e050977 | 6692 | Lisp_Object xpid = XCAR (tail); |
8e50cc2d SM |
6693 | if ((INTEGERP (xpid) && pid == (pid_t) XINT (xpid)) |
6694 | || (FLOATP (xpid) && pid == (pid_t) XFLOAT_DATA (xpid))) | |
8e050977 CY |
6695 | { |
6696 | XSETCAR (tail, Qnil); | |
6697 | goto sigchld_end_of_loop; | |
6698 | } | |
a5cfdda8 KS |
6699 | } |
6700 | ||
6701 | /* Otherwise, if it is asynchronous, it is in Vprocess_alist. */ | |
d0d6b7c5 | 6702 | p = 0; |
8e50cc2d | 6703 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6704 | { |
70949dac | 6705 | proc = XCDR (XCAR (tail)); |
d0d6b7c5 | 6706 | p = XPROCESS (proc); |
d888760c | 6707 | if (EQ (p->type, Qreal) && p->pid == pid) |
d0d6b7c5 JB |
6708 | break; |
6709 | p = 0; | |
6710 | } | |
6711 | ||
6712 | /* Look for an asynchronous process whose pid hasn't been filled | |
6713 | in yet. */ | |
6714 | if (p == 0) | |
8e50cc2d | 6715 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6716 | { |
70949dac | 6717 | proc = XCDR (XCAR (tail)); |
d0d6b7c5 | 6718 | p = XPROCESS (proc); |
6bfd98e7 | 6719 | if (p->pid == -1) |
d0d6b7c5 JB |
6720 | break; |
6721 | p = 0; | |
6722 | } | |
177c0ea7 | 6723 | |
d0d6b7c5 JB |
6724 | /* Change the status of the process that was found. */ |
6725 | if (p != 0) | |
6726 | { | |
e98d950b | 6727 | int clear_desc_flag = 0; |
177c0ea7 | 6728 | |
60f0fb11 | 6729 | p->tick = ++process_tick; |
bba104c1 | 6730 | p->raw_status = w; |
6bfd98e7 | 6731 | p->raw_status_new = 1; |
177c0ea7 | 6732 | |
d0d6b7c5 | 6733 | /* If process has terminated, stop waiting for its output. */ |
e98d950b | 6734 | if ((WIFSIGNALED (w) || WIFEXITED (w)) |
60f0fb11 | 6735 | && p->infd >= 0) |
e98d950b RS |
6736 | clear_desc_flag = 1; |
6737 | ||
6738 | /* We use clear_desc_flag to avoid a compiler bug in Microsoft C. */ | |
6739 | if (clear_desc_flag) | |
6740 | { | |
60f0fb11 SM |
6741 | FD_CLR (p->infd, &input_wait_mask); |
6742 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
e98d950b | 6743 | } |
6be429b1 | 6744 | |
214d6069 | 6745 | /* Tell wait_reading_process_output that it needs to wake up and |
6be429b1 JB |
6746 | look around. */ |
6747 | if (input_available_clear_time) | |
6748 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d0d6b7c5 JB |
6749 | } |
6750 | ||
a5cfdda8 KS |
6751 | /* There was no asynchronous process found for that pid: we have |
6752 | a synchronous process. */ | |
d0d6b7c5 JB |
6753 | else |
6754 | { | |
6755 | synch_process_alive = 0; | |
6756 | ||
6757 | /* Report the status of the synchronous process. */ | |
6758 | if (WIFEXITED (w)) | |
6759 | synch_process_retcode = WRETCODE (w); | |
6760 | else if (WIFSIGNALED (w)) | |
63136da6 | 6761 | synch_process_termsig = WTERMSIG (w); |
6be429b1 | 6762 | |
214d6069 | 6763 | /* Tell wait_reading_process_output that it needs to wake up and |
6be429b1 JB |
6764 | look around. */ |
6765 | if (input_available_clear_time) | |
6766 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d0d6b7c5 JB |
6767 | } |
6768 | ||
a5cfdda8 KS |
6769 | sigchld_end_of_loop: |
6770 | ; | |
6771 | ||
d0d6b7c5 JB |
6772 | /* On some systems, we must return right away. |
6773 | If any more processes want to signal us, we will | |
6774 | get another signal. | |
6775 | Otherwise (on systems that have WNOHANG), loop around | |
6776 | to use up all the processes that have something to tell us. */ | |
4e6277d8 | 6777 | #if (defined WINDOWSNT \ |
8a2a6032 | 6778 | || (defined USG && !defined GNU_LINUX \ |
63136da6 | 6779 | && !(defined HPUX && defined WNOHANG))) |
3c0ee47b | 6780 | #if defined (USG) && ! defined (POSIX_SIGNALS) |
d0d6b7c5 JB |
6781 | signal (signo, sigchld_handler); |
6782 | #endif | |
6783 | errno = old_errno; | |
6784 | return; | |
6785 | #endif /* USG, but not HPUX with WNOHANG */ | |
6786 | } | |
6787 | } | |
a5cfdda8 | 6788 | #endif /* SIGCHLD */ |
d0d6b7c5 JB |
6789 | \f |
6790 | ||
6791 | static Lisp_Object | |
6792 | exec_sentinel_unwind (data) | |
6793 | Lisp_Object data; | |
6794 | { | |
70949dac | 6795 | XPROCESS (XCAR (data))->sentinel = XCDR (data); |
d0d6b7c5 JB |
6796 | return Qnil; |
6797 | } | |
6798 | ||
3b9a3dfa RS |
6799 | static Lisp_Object |
6800 | exec_sentinel_error_handler (error) | |
6801 | Lisp_Object error; | |
6802 | { | |
6803 | cmd_error_internal (error, "error in process sentinel: "); | |
6804 | Vinhibit_quit = Qt; | |
6805 | update_echo_area (); | |
833ba342 | 6806 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 6807 | return Qt; |
3b9a3dfa RS |
6808 | } |
6809 | ||
d0d6b7c5 JB |
6810 | static void |
6811 | exec_sentinel (proc, reason) | |
6812 | Lisp_Object proc, reason; | |
6813 | { | |
dfc21838 | 6814 | Lisp_Object sentinel, obuffer, odeactivate, okeymap; |
d0d6b7c5 | 6815 | register struct Lisp_Process *p = XPROCESS (proc); |
aed13378 | 6816 | int count = SPECPDL_INDEX (); |
4da2f5be | 6817 | int outer_running_asynch_code = running_asynch_code; |
bbce7d72 | 6818 | int waiting = waiting_for_user_input_p; |
d0d6b7c5 | 6819 | |
84af9896 RS |
6820 | if (inhibit_sentinels) |
6821 | return; | |
6822 | ||
dfc21838 RS |
6823 | /* No need to gcpro these, because all we do with them later |
6824 | is test them for EQness, and none of them should be a string. */ | |
8fb3cf64 | 6825 | odeactivate = Vdeactivate_mark; |
dfc21838 RS |
6826 | XSETBUFFER (obuffer, current_buffer); |
6827 | okeymap = current_buffer->keymap; | |
6828 | ||
d0d6b7c5 JB |
6829 | sentinel = p->sentinel; |
6830 | if (NILP (sentinel)) | |
6831 | return; | |
6832 | ||
6833 | /* Zilch the sentinel while it's running, to avoid recursive invocations; | |
6834 | assure that it gets restored no matter how the sentinel exits. */ | |
6835 | p->sentinel = Qnil; | |
6836 | record_unwind_protect (exec_sentinel_unwind, Fcons (proc, sentinel)); | |
6837 | /* Inhibit quit so that random quits don't screw up a running filter. */ | |
6838 | specbind (Qinhibit_quit, Qt); | |
6545aada | 6839 | specbind (Qlast_nonmenu_event, Qt); |
3b9a3dfa | 6840 | |
4da2f5be RS |
6841 | /* In case we get recursively called, |
6842 | and we already saved the match data nonrecursively, | |
6843 | save the same match data in safely recursive fashion. */ | |
6844 | if (outer_running_asynch_code) | |
6845 | { | |
6846 | Lisp_Object tem; | |
89f2614d KS |
6847 | tem = Fmatch_data (Qnil, Qnil, Qnil); |
6848 | restore_search_regs (); | |
6849 | record_unwind_save_match_data (); | |
6850 | Fset_match_data (tem, Qt); | |
4da2f5be RS |
6851 | } |
6852 | ||
6853 | /* For speed, if a search happens within this code, | |
6854 | save the match data in a special nonrecursive fashion. */ | |
7074fde6 | 6855 | running_asynch_code = 1; |
4da2f5be | 6856 | |
3b9a3dfa RS |
6857 | internal_condition_case_1 (read_process_output_call, |
6858 | Fcons (sentinel, | |
6859 | Fcons (proc, Fcons (reason, Qnil))), | |
6860 | !NILP (Vdebug_on_error) ? Qnil : Qerror, | |
6861 | exec_sentinel_error_handler); | |
4da2f5be RS |
6862 | |
6863 | /* If we saved the match data nonrecursively, restore it now. */ | |
89f2614d | 6864 | restore_search_regs (); |
4da2f5be | 6865 | running_asynch_code = outer_running_asynch_code; |
8fb3cf64 KH |
6866 | |
6867 | Vdeactivate_mark = odeactivate; | |
bbce7d72 RS |
6868 | |
6869 | /* Restore waiting_for_user_input_p as it was | |
6870 | when we were called, in case the filter clobbered it. */ | |
6871 | waiting_for_user_input_p = waiting; | |
6872 | ||
7973cfa8 | 6873 | #if 0 |
dfc21838 RS |
6874 | if (! EQ (Fcurrent_buffer (), obuffer) |
6875 | || ! EQ (current_buffer->keymap, okeymap)) | |
7973cfa8 | 6876 | #endif |
927e08be RS |
6877 | /* But do it only if the caller is actually going to read events. |
6878 | Otherwise there's no need to make him wake up, and it could | |
7157b8fe | 6879 | cause trouble (for example it would make sit_for return). */ |
927e08be RS |
6880 | if (waiting_for_user_input_p == -1) |
6881 | record_asynch_buffer_change (); | |
8fb3cf64 | 6882 | |
2ea6d561 | 6883 | unbind_to (count, Qnil); |
d0d6b7c5 JB |
6884 | } |
6885 | ||
6886 | /* Report all recent events of a change in process status | |
6887 | (either run the sentinel or output a message). | |
b50fe468 RS |
6888 | This is usually done while Emacs is waiting for keyboard input |
6889 | but can be done at other times. */ | |
d0d6b7c5 | 6890 | |
ff6daed3 KS |
6891 | static void |
6892 | status_notify (deleting_process) | |
6893 | struct Lisp_Process *deleting_process; | |
d0d6b7c5 JB |
6894 | { |
6895 | register Lisp_Object proc, buffer; | |
2e4149a8 | 6896 | Lisp_Object tail, msg; |
d0d6b7c5 JB |
6897 | struct gcpro gcpro1, gcpro2; |
6898 | ||
2e4149a8 KH |
6899 | tail = Qnil; |
6900 | msg = Qnil; | |
d0d6b7c5 JB |
6901 | /* We need to gcpro tail; if read_process_output calls a filter |
6902 | which deletes a process and removes the cons to which tail points | |
6903 | from Vprocess_alist, and then causes a GC, tail is an unprotected | |
6904 | reference. */ | |
6905 | GCPRO2 (tail, msg); | |
6906 | ||
30623085 RS |
6907 | /* Set this now, so that if new processes are created by sentinels |
6908 | that we run, we get called again to handle their status changes. */ | |
6909 | update_tick = process_tick; | |
6910 | ||
99784d63 | 6911 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6912 | { |
30623085 RS |
6913 | Lisp_Object symbol; |
6914 | register struct Lisp_Process *p; | |
6915 | ||
99784d63 | 6916 | proc = Fcdr (XCAR (tail)); |
30623085 RS |
6917 | p = XPROCESS (proc); |
6918 | ||
60f0fb11 | 6919 | if (p->tick != p->update_tick) |
d0d6b7c5 | 6920 | { |
60f0fb11 | 6921 | p->update_tick = p->tick; |
d0d6b7c5 | 6922 | |
30623085 | 6923 | /* If process is still active, read any output that remains. */ |
4da2f5be | 6924 | while (! EQ (p->filter, Qt) |
dd2a17ab | 6925 | && ! EQ (p->status, Qconnect) |
e690ca94 | 6926 | && ! EQ (p->status, Qlisten) |
d888760c GM |
6927 | /* Network or serial process not stopped: */ |
6928 | && ! EQ (p->command, Qt) | |
60f0fb11 | 6929 | && p->infd >= 0 |
ff6daed3 | 6930 | && p != deleting_process |
60f0fb11 | 6931 | && read_process_output (proc, p->infd) > 0); |
d0d6b7c5 | 6932 | |
30623085 | 6933 | buffer = p->buffer; |
d0d6b7c5 | 6934 | |
30623085 | 6935 | /* Get the text to use for the message. */ |
6bfd98e7 | 6936 | if (p->raw_status_new) |
30623085 | 6937 | update_status (p); |
116c423c | 6938 | msg = status_message (p); |
d0d6b7c5 | 6939 | |
30623085 RS |
6940 | /* If process is terminated, deactivate it or delete it. */ |
6941 | symbol = p->status; | |
6942 | if (CONSP (p->status)) | |
70949dac | 6943 | symbol = XCAR (p->status); |
d0d6b7c5 | 6944 | |
30623085 RS |
6945 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit) |
6946 | || EQ (symbol, Qclosed)) | |
6947 | { | |
6948 | if (delete_exited_processes) | |
6949 | remove_process (proc); | |
6950 | else | |
6951 | deactivate_process (proc); | |
6952 | } | |
d0d6b7c5 | 6953 | |
0ad61fe7 RS |
6954 | /* The actions above may have further incremented p->tick. |
6955 | So set p->update_tick again | |
6956 | so that an error in the sentinel will not cause | |
6957 | this code to be run again. */ | |
60f0fb11 | 6958 | p->update_tick = p->tick; |
30623085 RS |
6959 | /* Now output the message suitably. */ |
6960 | if (!NILP (p->sentinel)) | |
6961 | exec_sentinel (proc, msg); | |
6962 | /* Don't bother with a message in the buffer | |
6963 | when a process becomes runnable. */ | |
6964 | else if (!EQ (symbol, Qrun) && !NILP (buffer)) | |
6965 | { | |
6966 | Lisp_Object ro, tem; | |
6967 | struct buffer *old = current_buffer; | |
d8a2934e RS |
6968 | int opoint, opoint_byte; |
6969 | int before, before_byte; | |
2e4149a8 | 6970 | |
30623085 | 6971 | ro = XBUFFER (buffer)->read_only; |
d0d6b7c5 | 6972 | |
30623085 RS |
6973 | /* Avoid error if buffer is deleted |
6974 | (probably that's why the process is dead, too) */ | |
6975 | if (NILP (XBUFFER (buffer)->name)) | |
6976 | continue; | |
6977 | Fset_buffer (buffer); | |
12ca5cdf | 6978 | |
6ec8bbd2 | 6979 | opoint = PT; |
d8a2934e | 6980 | opoint_byte = PT_BYTE; |
30623085 RS |
6981 | /* Insert new output into buffer |
6982 | at the current end-of-output marker, | |
6983 | thus preserving logical ordering of input and output. */ | |
6984 | if (XMARKER (p->mark)->buffer) | |
d8a2934e | 6985 | Fgoto_char (p->mark); |
30623085 | 6986 | else |
d8a2934e | 6987 | SET_PT_BOTH (ZV, ZV_BYTE); |
12ca5cdf RS |
6988 | |
6989 | before = PT; | |
d8a2934e | 6990 | before_byte = PT_BYTE; |
30623085 RS |
6991 | |
6992 | tem = current_buffer->read_only; | |
6993 | current_buffer->read_only = Qnil; | |
6994 | insert_string ("\nProcess "); | |
6995 | Finsert (1, &p->name); | |
6996 | insert_string (" "); | |
6997 | Finsert (1, &msg); | |
6998 | current_buffer->read_only = tem; | |
d8a2934e | 6999 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); |
30623085 | 7000 | |
12ca5cdf | 7001 | if (opoint >= before) |
d8a2934e RS |
7002 | SET_PT_BOTH (opoint + (PT - before), |
7003 | opoint_byte + (PT_BYTE - before_byte)); | |
12ca5cdf | 7004 | else |
d8a2934e | 7005 | SET_PT_BOTH (opoint, opoint_byte); |
12ca5cdf | 7006 | |
30623085 | 7007 | set_buffer_internal (old); |
d0d6b7c5 | 7008 | } |
30623085 RS |
7009 | } |
7010 | } /* end for */ | |
d0d6b7c5 JB |
7011 | |
7012 | update_mode_lines++; /* in case buffers use %s in mode-line-format */ | |
3007ebfb | 7013 | redisplay_preserve_echo_area (13); |
d0d6b7c5 | 7014 | |
d0d6b7c5 JB |
7015 | UNGCPRO; |
7016 | } | |
0fa1789e KH |
7017 | |
7018 | \f | |
7019 | DEFUN ("set-process-coding-system", Fset_process_coding_system, | |
7020 | Sset_process_coding_system, 1, 3, 0, | |
fdb82f93 PJ |
7021 | doc: /* Set coding systems of PROCESS to DECODING and ENCODING. |
7022 | DECODING will be used to decode subprocess output and ENCODING to | |
7023 | encode subprocess input. */) | |
f3d9532b JB |
7024 | (process, decoding, encoding) |
7025 | register Lisp_Object process, decoding, encoding; | |
0fa1789e KH |
7026 | { |
7027 | register struct Lisp_Process *p; | |
7028 | ||
f3d9532b JB |
7029 | CHECK_PROCESS (process); |
7030 | p = XPROCESS (process); | |
60f0fb11 | 7031 | if (p->infd < 0) |
d5db4077 | 7032 | error ("Input file descriptor of %s closed", SDATA (p->name)); |
60f0fb11 | 7033 | if (p->outfd < 0) |
d5db4077 | 7034 | error ("Output file descriptor of %s closed", SDATA (p->name)); |
03f04413 KH |
7035 | Fcheck_coding_system (decoding); |
7036 | Fcheck_coding_system (encoding); | |
76d812bb | 7037 | encoding = coding_inherit_eol_type (encoding, Qnil); |
03f04413 KH |
7038 | p->decode_coding_system = decoding; |
7039 | p->encode_coding_system = encoding; | |
f3d9532b | 7040 | setup_process_coding_systems (process); |
0fa1789e KH |
7041 | |
7042 | return Qnil; | |
7043 | } | |
7044 | ||
7045 | DEFUN ("process-coding-system", | |
7046 | Fprocess_coding_system, Sprocess_coding_system, 1, 1, 0, | |
fdb82f93 | 7047 | doc: /* Return a cons of coding systems for decoding and encoding of PROCESS. */) |
f3d9532b JB |
7048 | (process) |
7049 | register Lisp_Object process; | |
0fa1789e | 7050 | { |
f3d9532b JB |
7051 | CHECK_PROCESS (process); |
7052 | return Fcons (XPROCESS (process)->decode_coding_system, | |
7053 | XPROCESS (process)->encode_coding_system); | |
0fa1789e | 7054 | } |
03f04413 KH |
7055 | |
7056 | DEFUN ("set-process-filter-multibyte", Fset_process_filter_multibyte, | |
7057 | Sset_process_filter_multibyte, 2, 2, 0, | |
7392e23c KS |
7058 | doc: /* Set multibyteness of the strings given to PROCESS's filter. |
7059 | If FLAG is non-nil, the filter is given multibyte strings. | |
7060 | If FLAG is nil, the filter is given unibyte strings. In this case, | |
03f04413 KH |
7061 | all character code conversion except for end-of-line conversion is |
7062 | suppressed. */) | |
f3d9532b JB |
7063 | (process, flag) |
7064 | Lisp_Object process, flag; | |
03f04413 KH |
7065 | { |
7066 | register struct Lisp_Process *p; | |
7067 | ||
f3d9532b JB |
7068 | CHECK_PROCESS (process); |
7069 | p = XPROCESS (process); | |
5431bd6a SM |
7070 | if (NILP (flag)) |
7071 | p->decode_coding_system = raw_text_coding_system (p->decode_coding_system); | |
f3d9532b | 7072 | setup_process_coding_systems (process); |
03f04413 KH |
7073 | |
7074 | return Qnil; | |
7075 | } | |
7076 | ||
7077 | DEFUN ("process-filter-multibyte-p", Fprocess_filter_multibyte_p, | |
7078 | Sprocess_filter_multibyte_p, 1, 1, 0, | |
7079 | doc: /* Return t if a multibyte string is given to PROCESS's filter.*/) | |
f3d9532b JB |
7080 | (process) |
7081 | Lisp_Object process; | |
03f04413 KH |
7082 | { |
7083 | register struct Lisp_Process *p; | |
5431bd6a | 7084 | struct coding_system *coding; |
03f04413 | 7085 | |
f3d9532b JB |
7086 | CHECK_PROCESS (process); |
7087 | p = XPROCESS (process); | |
5431bd6a SM |
7088 | coding = proc_decode_coding_system[p->infd]; |
7089 | return (CODING_FOR_UNIBYTE (coding) ? Qnil : Qt); | |
03f04413 KH |
7090 | } |
7091 | ||
7092 | ||
d0d6b7c5 | 7093 | \f |
da8e1115 | 7094 | /* Add DESC to the set of keyboard input descriptors. */ |
a69281ff RS |
7095 | |
7096 | void | |
7097 | add_keyboard_wait_descriptor (desc) | |
7098 | int desc; | |
7099 | { | |
a69281ff | 7100 | FD_SET (desc, &input_wait_mask); |
b5dc1c83 | 7101 | FD_SET (desc, &non_process_wait_mask); |
a69281ff RS |
7102 | if (desc > max_keyboard_desc) |
7103 | max_keyboard_desc = desc; | |
7104 | } | |
7105 | ||
994d9841 NR |
7106 | static int add_gpm_wait_descriptor_called_flag; |
7107 | ||
7108 | void | |
7109 | add_gpm_wait_descriptor (desc) | |
7110 | int desc; | |
7111 | { | |
7112 | if (! add_gpm_wait_descriptor_called_flag) | |
7113 | FD_CLR (0, &input_wait_mask); | |
7114 | add_gpm_wait_descriptor_called_flag = 1; | |
7115 | FD_SET (desc, &input_wait_mask); | |
7116 | FD_SET (desc, &gpm_wait_mask); | |
7117 | if (desc > max_gpm_desc) | |
7118 | max_gpm_desc = desc; | |
7119 | } | |
7120 | ||
a69281ff RS |
7121 | /* From now on, do not expect DESC to give keyboard input. */ |
7122 | ||
7123 | void | |
7124 | delete_keyboard_wait_descriptor (desc) | |
7125 | int desc; | |
7126 | { | |
7127 | int fd; | |
7128 | int lim = max_keyboard_desc; | |
7129 | ||
7130 | FD_CLR (desc, &input_wait_mask); | |
b5dc1c83 | 7131 | FD_CLR (desc, &non_process_wait_mask); |
a69281ff RS |
7132 | |
7133 | if (desc == max_keyboard_desc) | |
7134 | for (fd = 0; fd < lim; fd++) | |
7135 | if (FD_ISSET (fd, &input_wait_mask) | |
994d9841 NR |
7136 | && !FD_ISSET (fd, &non_keyboard_wait_mask) |
7137 | && !FD_ISSET (fd, &gpm_wait_mask)) | |
a69281ff RS |
7138 | max_keyboard_desc = fd; |
7139 | } | |
7140 | ||
994d9841 NR |
7141 | void |
7142 | delete_gpm_wait_descriptor (desc) | |
7143 | int desc; | |
7144 | { | |
7145 | int fd; | |
7146 | int lim = max_gpm_desc; | |
7147 | ||
7148 | FD_CLR (desc, &input_wait_mask); | |
7149 | FD_CLR (desc, &non_process_wait_mask); | |
7150 | ||
7151 | if (desc == max_gpm_desc) | |
7152 | for (fd = 0; fd < lim; fd++) | |
7153 | if (FD_ISSET (fd, &input_wait_mask) | |
7154 | && !FD_ISSET (fd, &non_keyboard_wait_mask) | |
7155 | && !FD_ISSET (fd, &non_process_wait_mask)) | |
7156 | max_gpm_desc = fd; | |
7157 | } | |
7158 | ||
a69281ff RS |
7159 | /* Return nonzero if *MASK has a bit set |
7160 | that corresponds to one of the keyboard input descriptors. */ | |
7161 | ||
ff6daed3 | 7162 | static int |
a69281ff RS |
7163 | keyboard_bit_set (mask) |
7164 | SELECT_TYPE *mask; | |
7165 | { | |
7166 | int fd; | |
7167 | ||
ee8e09af | 7168 | for (fd = 0; fd <= max_keyboard_desc; fd++) |
a69281ff RS |
7169 | if (FD_ISSET (fd, mask) && FD_ISSET (fd, &input_wait_mask) |
7170 | && !FD_ISSET (fd, &non_keyboard_wait_mask)) | |
7171 | return 1; | |
7172 | ||
7173 | return 0; | |
7174 | } | |
7175 | \f | |
934e2a68 EZ |
7176 | /* Enumeration of and access to system processes a-la ps(1). */ |
7177 | ||
934e2a68 EZ |
7178 | DEFUN ("list-system-processes", Flist_system_processes, Slist_system_processes, |
7179 | 0, 0, 0, | |
7180 | doc: /* Return a list of numerical process IDs of all running processes. | |
7181 | If this functionality is unsupported, return nil. | |
7182 | ||
a20878b6 | 7183 | See `process-attributes' for getting attributes of a process given its ID. */) |
934e2a68 EZ |
7184 | () |
7185 | { | |
06e111a6 | 7186 | return list_system_processes (); |
934e2a68 EZ |
7187 | } |
7188 | ||
a20878b6 MB |
7189 | DEFUN ("process-attributes", Fprocess_attributes, |
7190 | Sprocess_attributes, 1, 1, 0, | |
934e2a68 EZ |
7191 | doc: /* Return attributes of the process given by its PID, a number. |
7192 | ||
7193 | Value is an alist where each element is a cons cell of the form | |
7194 | ||
ea92add1 | 7195 | \(KEY . VALUE) |
934e2a68 EZ |
7196 | |
7197 | If this functionality is unsupported, the value is nil. | |
7198 | ||
7199 | See `list-system-processes' for getting a list of all process IDs. | |
7200 | ||
ea92add1 RW |
7201 | The KEYs of the attributes that this function may return are listed |
7202 | below, together with the type of the associated VALUE (in parentheses). | |
8f8b082a EZ |
7203 | Not all platforms support all of these attributes; unsupported |
7204 | attributes will not appear in the returned alist. | |
934e2a68 EZ |
7205 | Unless explicitly indicated otherwise, numbers can have either |
7206 | integer or floating point values. | |
7207 | ||
7208 | euid -- Effective user User ID of the process (number) | |
7209 | user -- User name corresponding to euid (string) | |
7210 | egid -- Effective user Group ID of the process (number) | |
7211 | group -- Group name corresponding to egid (string) | |
7212 | comm -- Command name (executable name only) (string) | |
7213 | state -- Process state code, such as "S", "R", or "T" (string) | |
7214 | ppid -- Parent process ID (number) | |
7215 | pgrp -- Process group ID (number) | |
7216 | sess -- Session ID, i.e. process ID of session leader (number) | |
7217 | ttname -- Controlling tty name (string) | |
7218 | tpgid -- ID of foreground process group on the process's tty (number) | |
7219 | minflt -- number of minor page faults (number) | |
7220 | majflt -- number of major page faults (number) | |
7221 | cminflt -- cumulative number of minor page faults (number) | |
7222 | cmajflt -- cumulative number of major page faults (number) | |
7223 | utime -- user time used by the process, in the (HIGH LOW USEC) format | |
7224 | stime -- system time used by the process, in the (HIGH LOW USEC) format | |
89c874cf | 7225 | time -- sum of utime and stime, in the (HIGH LOW USEC) format |
934e2a68 EZ |
7226 | cutime -- user time used by the process and its children, (HIGH LOW USEC) |
7227 | cstime -- system time used by the process and its children, (HIGH LOW USEC) | |
89c874cf | 7228 | ctime -- sum of cutime and cstime, in the (HIGH LOW USEC) format |
934e2a68 EZ |
7229 | pri -- priority of the process (number) |
7230 | nice -- nice value of the process (number) | |
7231 | thcount -- process thread count (number) | |
7232 | start -- time the process started, in the (HIGH LOW USEC) format | |
7233 | vsize -- virtual memory size of the process in KB's (number) | |
7234 | rss -- resident set size of the process in KB's (number) | |
7235 | etime -- elapsed time the process is running, in (HIGH LOW USEC) format | |
7236 | pcpu -- percents of CPU time used by the process (floating-point number) | |
7237 | pmem -- percents of total physical memory used by process's resident set | |
7238 | (floating-point number) | |
7239 | args -- command line which invoked the process (string). */) | |
7240 | (pid) | |
7241 | ||
7242 | Lisp_Object pid; | |
7243 | { | |
06e111a6 | 7244 | return system_process_attributes (pid); |
934e2a68 EZ |
7245 | } |
7246 | \f | |
dfcf069d | 7247 | void |
d0d6b7c5 JB |
7248 | init_process () |
7249 | { | |
7250 | register int i; | |
7251 | ||
84af9896 RS |
7252 | inhibit_sentinels = 0; |
7253 | ||
d0d6b7c5 JB |
7254 | #ifdef SIGCHLD |
7255 | #ifndef CANNOT_DUMP | |
7256 | if (! noninteractive || initialized) | |
7257 | #endif | |
7258 | signal (SIGCHLD, sigchld_handler); | |
7259 | #endif | |
7260 | ||
7261 | FD_ZERO (&input_wait_mask); | |
a69281ff | 7262 | FD_ZERO (&non_keyboard_wait_mask); |
b5dc1c83 | 7263 | FD_ZERO (&non_process_wait_mask); |
7d0e672e | 7264 | max_process_desc = 0; |
dd2281ae | 7265 | |
bad49fc7 KS |
7266 | #ifdef NON_BLOCKING_CONNECT |
7267 | FD_ZERO (&connect_wait_mask); | |
7268 | num_pending_connects = 0; | |
7269 | #endif | |
7270 | ||
6b61353c KH |
7271 | #ifdef ADAPTIVE_READ_BUFFERING |
7272 | process_output_delay_count = 0; | |
7273 | process_output_skip = 0; | |
7274 | #endif | |
7275 | ||
c0707982 KL |
7276 | /* Don't do this, it caused infinite select loops. The display |
7277 | method should call add_keyboard_wait_descriptor on stdin if it | |
7278 | needs that. */ | |
7279 | #if 0 | |
a69281ff | 7280 | FD_SET (0, &input_wait_mask); |
c0707982 | 7281 | #endif |
dd2281ae | 7282 | |
d0d6b7c5 | 7283 | Vprocess_alist = Qnil; |
a5cfdda8 KS |
7284 | #ifdef SIGCHLD |
7285 | deleted_pid_list = Qnil; | |
7286 | #endif | |
d0d6b7c5 JB |
7287 | for (i = 0; i < MAXDESC; i++) |
7288 | { | |
7289 | chan_process[i] = Qnil; | |
7290 | proc_buffered_char[i] = -1; | |
7291 | } | |
c7580538 KH |
7292 | bzero (proc_decode_coding_system, sizeof proc_decode_coding_system); |
7293 | bzero (proc_encode_coding_system, sizeof proc_encode_coding_system); | |
e690ca94 KS |
7294 | #ifdef DATAGRAM_SOCKETS |
7295 | bzero (datagram_address, sizeof datagram_address); | |
7296 | #endif | |
9057ff80 | 7297 | |
c2bd2c26 KS |
7298 | #ifdef HAVE_SOCKETS |
7299 | { | |
7300 | Lisp_Object subfeatures = Qnil; | |
6b61353c KH |
7301 | struct socket_options *sopt; |
7302 | ||
9057ff80 KS |
7303 | #define ADD_SUBFEATURE(key, val) \ |
7304 | subfeatures = Fcons (Fcons (key, Fcons (val, Qnil)), subfeatures) | |
7305 | ||
9057ff80 | 7306 | #ifdef NON_BLOCKING_CONNECT |
c2bd2c26 | 7307 | ADD_SUBFEATURE (QCnowait, Qt); |
9057ff80 KS |
7308 | #endif |
7309 | #ifdef DATAGRAM_SOCKETS | |
c2bd2c26 | 7310 | ADD_SUBFEATURE (QCtype, Qdatagram); |
9057ff80 KS |
7311 | #endif |
7312 | #ifdef HAVE_LOCAL_SOCKETS | |
c2bd2c26 | 7313 | ADD_SUBFEATURE (QCfamily, Qlocal); |
e1652a86 KS |
7314 | #endif |
7315 | ADD_SUBFEATURE (QCfamily, Qipv4); | |
7316 | #ifdef AF_INET6 | |
7317 | ADD_SUBFEATURE (QCfamily, Qipv6); | |
9057ff80 KS |
7318 | #endif |
7319 | #ifdef HAVE_GETSOCKNAME | |
c2bd2c26 | 7320 | ADD_SUBFEATURE (QCservice, Qt); |
9057ff80 | 7321 | #endif |
132d0475 | 7322 | #if defined(O_NONBLOCK) || defined(O_NDELAY) |
c2bd2c26 | 7323 | ADD_SUBFEATURE (QCserver, Qt); |
9057ff80 | 7324 | #endif |
6b61353c KH |
7325 | |
7326 | for (sopt = socket_options; sopt->name; sopt++) | |
7327 | subfeatures = Fcons (intern (sopt->name), subfeatures); | |
7328 | ||
c2bd2c26 KS |
7329 | Fprovide (intern ("make-network-process"), subfeatures); |
7330 | } | |
7331 | #endif /* HAVE_SOCKETS */ | |
d9e7c622 | 7332 | |
14145fa3 | 7333 | #if defined (DARWIN_OS) |
db853b7a | 7334 | /* PTYs are broken on Darwin < 6, but are sometimes useful for interactive |
d9e7c622 ST |
7335 | processes. As such, we only change the default value. */ |
7336 | if (initialized) | |
7337 | { | |
7338 | char *release = get_operating_system_release(); | |
7339 | if (!release || !release[0] || (release[0] < MIN_PTY_KERNEL_VERSION | |
7340 | && release[1] == '.')) { | |
7341 | Vprocess_connection_type = Qnil; | |
7342 | } | |
7343 | } | |
7344 | #endif | |
d0d6b7c5 | 7345 | } |
312c9964 | 7346 | |
dfcf069d | 7347 | void |
d0d6b7c5 JB |
7348 | syms_of_process () |
7349 | { | |
d0d6b7c5 JB |
7350 | Qprocessp = intern ("processp"); |
7351 | staticpro (&Qprocessp); | |
7352 | Qrun = intern ("run"); | |
7353 | staticpro (&Qrun); | |
7354 | Qstop = intern ("stop"); | |
7355 | staticpro (&Qstop); | |
324e68ba KS |
7356 | Qsignal = intern ("signal"); |
7357 | staticpro (&Qsignal); | |
d0d6b7c5 JB |
7358 | |
7359 | /* Qexit is already staticpro'd by syms_of_eval; don't staticpro it | |
7360 | here again. | |
7361 | ||
7362 | Qexit = intern ("exit"); | |
7363 | staticpro (&Qexit); */ | |
7364 | ||
7365 | Qopen = intern ("open"); | |
7366 | staticpro (&Qopen); | |
7367 | Qclosed = intern ("closed"); | |
7368 | staticpro (&Qclosed); | |
dd2a17ab KS |
7369 | Qconnect = intern ("connect"); |
7370 | staticpro (&Qconnect); | |
7371 | Qfailed = intern ("failed"); | |
7372 | staticpro (&Qfailed); | |
e690ca94 KS |
7373 | Qlisten = intern ("listen"); |
7374 | staticpro (&Qlisten); | |
7375 | Qlocal = intern ("local"); | |
7376 | staticpro (&Qlocal); | |
e1652a86 KS |
7377 | Qipv4 = intern ("ipv4"); |
7378 | staticpro (&Qipv4); | |
7379 | #ifdef AF_INET6 | |
7380 | Qipv6 = intern ("ipv6"); | |
7381 | staticpro (&Qipv6); | |
7382 | #endif | |
9057ff80 KS |
7383 | Qdatagram = intern ("datagram"); |
7384 | staticpro (&Qdatagram); | |
e690ca94 | 7385 | |
d888760c GM |
7386 | QCport = intern (":port"); |
7387 | staticpro (&QCport); | |
7388 | QCspeed = intern (":speed"); | |
7389 | staticpro (&QCspeed); | |
7390 | QCprocess = intern (":process"); | |
7391 | staticpro (&QCprocess); | |
7392 | ||
7393 | QCbytesize = intern (":bytesize"); | |
7394 | staticpro (&QCbytesize); | |
7395 | QCstopbits = intern (":stopbits"); | |
7396 | staticpro (&QCstopbits); | |
7397 | QCparity = intern (":parity"); | |
7398 | staticpro (&QCparity); | |
7399 | Qodd = intern ("odd"); | |
7400 | staticpro (&Qodd); | |
7401 | Qeven = intern ("even"); | |
7402 | staticpro (&Qeven); | |
7403 | QCflowcontrol = intern (":flowcontrol"); | |
7404 | staticpro (&QCflowcontrol); | |
7405 | Qhw = intern ("hw"); | |
7406 | staticpro (&Qhw); | |
7407 | Qsw = intern ("sw"); | |
7408 | staticpro (&Qsw); | |
7409 | QCsummary = intern (":summary"); | |
7410 | staticpro (&QCsummary); | |
7411 | ||
7412 | Qreal = intern ("real"); | |
7413 | staticpro (&Qreal); | |
7414 | Qnetwork = intern ("network"); | |
7415 | staticpro (&Qnetwork); | |
7416 | Qserial = intern ("serial"); | |
7417 | staticpro (&Qserial); | |
7418 | ||
e690ca94 KS |
7419 | QCname = intern (":name"); |
7420 | staticpro (&QCname); | |
7421 | QCbuffer = intern (":buffer"); | |
7422 | staticpro (&QCbuffer); | |
7423 | QChost = intern (":host"); | |
7424 | staticpro (&QChost); | |
7425 | QCservice = intern (":service"); | |
7426 | staticpro (&QCservice); | |
9057ff80 KS |
7427 | QCtype = intern (":type"); |
7428 | staticpro (&QCtype); | |
e690ca94 KS |
7429 | QClocal = intern (":local"); |
7430 | staticpro (&QClocal); | |
7431 | QCremote = intern (":remote"); | |
7432 | staticpro (&QCremote); | |
7433 | QCcoding = intern (":coding"); | |
7434 | staticpro (&QCcoding); | |
7435 | QCserver = intern (":server"); | |
7436 | staticpro (&QCserver); | |
e690ca94 KS |
7437 | QCnowait = intern (":nowait"); |
7438 | staticpro (&QCnowait); | |
e690ca94 KS |
7439 | QCsentinel = intern (":sentinel"); |
7440 | staticpro (&QCsentinel); | |
7441 | QClog = intern (":log"); | |
7442 | staticpro (&QClog); | |
7443 | QCnoquery = intern (":noquery"); | |
7444 | staticpro (&QCnoquery); | |
7445 | QCstop = intern (":stop"); | |
7446 | staticpro (&QCstop); | |
7447 | QCoptions = intern (":options"); | |
7448 | staticpro (&QCoptions); | |
faa7db08 KS |
7449 | QCplist = intern (":plist"); |
7450 | staticpro (&QCplist); | |
177c0ea7 | 7451 | |
6545aada RS |
7452 | Qlast_nonmenu_event = intern ("last-nonmenu-event"); |
7453 | staticpro (&Qlast_nonmenu_event); | |
7454 | ||
d0d6b7c5 | 7455 | staticpro (&Vprocess_alist); |
a5cfdda8 KS |
7456 | #ifdef SIGCHLD |
7457 | staticpro (&deleted_pid_list); | |
7458 | #endif | |
d0d6b7c5 | 7459 | |
934e2a68 EZ |
7460 | Qeuid = intern ("euid"); |
7461 | staticpro (&Qeuid); | |
7462 | Qegid = intern ("egid"); | |
7463 | staticpro (&Qegid); | |
7464 | Quser = intern ("user"); | |
7465 | staticpro (&Quser); | |
7466 | Qgroup = intern ("group"); | |
7467 | staticpro (&Qgroup); | |
7468 | Qcomm = intern ("comm"); | |
7469 | staticpro (&Qcomm); | |
7470 | Qstate = intern ("state"); | |
7471 | staticpro (&Qstate); | |
7472 | Qppid = intern ("ppid"); | |
7473 | staticpro (&Qppid); | |
7474 | Qpgrp = intern ("pgrp"); | |
7475 | staticpro (&Qpgrp); | |
7476 | Qsess = intern ("sess"); | |
7477 | staticpro (&Qsess); | |
7478 | Qttname = intern ("ttname"); | |
7479 | staticpro (&Qttname); | |
7480 | Qtpgid = intern ("tpgid"); | |
7481 | staticpro (&Qtpgid); | |
7482 | Qminflt = intern ("minflt"); | |
7483 | staticpro (&Qminflt); | |
7484 | Qmajflt = intern ("majflt"); | |
7485 | staticpro (&Qmajflt); | |
7486 | Qcminflt = intern ("cminflt"); | |
7487 | staticpro (&Qcminflt); | |
7488 | Qcmajflt = intern ("cmajflt"); | |
7489 | staticpro (&Qcmajflt); | |
7490 | Qutime = intern ("utime"); | |
7491 | staticpro (&Qutime); | |
7492 | Qstime = intern ("stime"); | |
7493 | staticpro (&Qstime); | |
89c874cf EZ |
7494 | Qtime = intern ("time"); |
7495 | staticpro (&Qtime); | |
934e2a68 EZ |
7496 | Qcutime = intern ("cutime"); |
7497 | staticpro (&Qcutime); | |
7498 | Qcstime = intern ("cstime"); | |
7499 | staticpro (&Qcstime); | |
89c874cf EZ |
7500 | Qctime = intern ("ctime"); |
7501 | staticpro (&Qctime); | |
934e2a68 EZ |
7502 | Qpri = intern ("pri"); |
7503 | staticpro (&Qpri); | |
7504 | Qnice = intern ("nice"); | |
7505 | staticpro (&Qnice); | |
7506 | Qthcount = intern ("thcount"); | |
7507 | staticpro (&Qthcount); | |
7508 | Qstart = intern ("start"); | |
7509 | staticpro (&Qstart); | |
7510 | Qvsize = intern ("vsize"); | |
7511 | staticpro (&Qvsize); | |
7512 | Qrss = intern ("rss"); | |
7513 | staticpro (&Qrss); | |
7514 | Qetime = intern ("etime"); | |
7515 | staticpro (&Qetime); | |
7516 | Qpcpu = intern ("pcpu"); | |
7517 | staticpro (&Qpcpu); | |
7518 | Qpmem = intern ("pmem"); | |
7519 | staticpro (&Qpmem); | |
7520 | Qargs = intern ("args"); | |
7521 | staticpro (&Qargs); | |
7522 | ||
d0d6b7c5 | 7523 | DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes, |
fdb82f93 | 7524 | doc: /* *Non-nil means delete processes immediately when they exit. |
d4e83d5c | 7525 | A value of nil means don't delete them until `list-processes' is run. */); |
d0d6b7c5 JB |
7526 | |
7527 | delete_exited_processes = 1; | |
7528 | ||
7529 | DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type, | |
fdb82f93 PJ |
7530 | doc: /* Control type of device used to communicate with subprocesses. |
7531 | Values are nil to use a pipe, or t or `pty' to use a pty. | |
7532 | The value has no effect if the system has no ptys or if all ptys are busy: | |
7533 | then a pipe is used in any case. | |
7534 | The value takes effect when `start-process' is called. */); | |
d0d6b7c5 JB |
7535 | Vprocess_connection_type = Qt; |
7536 | ||
6b61353c KH |
7537 | #ifdef ADAPTIVE_READ_BUFFERING |
7538 | DEFVAR_LISP ("process-adaptive-read-buffering", &Vprocess_adaptive_read_buffering, | |
7539 | doc: /* If non-nil, improve receive buffering by delaying after short reads. | |
f3d9532b | 7540 | On some systems, when Emacs reads the output from a subprocess, the output data |
6b61353c | 7541 | is read in very small blocks, potentially resulting in very poor performance. |
2de35a25 | 7542 | This behavior can be remedied to some extent by setting this variable to a |
6b61353c | 7543 | non-nil value, as it will automatically delay reading from such processes, to |
635a3496 | 7544 | allow them to produce more output before Emacs tries to read it. |
6b61353c KH |
7545 | If the value is t, the delay is reset after each write to the process; any other |
7546 | non-nil value means that the delay is not reset on write. | |
7547 | The variable takes effect when `start-process' is called. */); | |
7548 | Vprocess_adaptive_read_buffering = Qt; | |
7549 | #endif | |
7550 | ||
d0d6b7c5 JB |
7551 | defsubr (&Sprocessp); |
7552 | defsubr (&Sget_process); | |
7553 | defsubr (&Sget_buffer_process); | |
7554 | defsubr (&Sdelete_process); | |
7555 | defsubr (&Sprocess_status); | |
7556 | defsubr (&Sprocess_exit_status); | |
7557 | defsubr (&Sprocess_id); | |
7558 | defsubr (&Sprocess_name); | |
3b9a3dfa | 7559 | defsubr (&Sprocess_tty_name); |
d0d6b7c5 JB |
7560 | defsubr (&Sprocess_command); |
7561 | defsubr (&Sset_process_buffer); | |
7562 | defsubr (&Sprocess_buffer); | |
7563 | defsubr (&Sprocess_mark); | |
7564 | defsubr (&Sset_process_filter); | |
7565 | defsubr (&Sprocess_filter); | |
7566 | defsubr (&Sset_process_sentinel); | |
7567 | defsubr (&Sprocess_sentinel); | |
de282a05 | 7568 | defsubr (&Sset_process_window_size); |
52a1b894 EZ |
7569 | defsubr (&Sset_process_inherit_coding_system_flag); |
7570 | defsubr (&Sprocess_inherit_coding_system_flag); | |
e690ca94 KS |
7571 | defsubr (&Sset_process_query_on_exit_flag); |
7572 | defsubr (&Sprocess_query_on_exit_flag); | |
de282a05 | 7573 | defsubr (&Sprocess_contact); |
faa7db08 KS |
7574 | defsubr (&Sprocess_plist); |
7575 | defsubr (&Sset_process_plist); | |
d0d6b7c5 JB |
7576 | defsubr (&Slist_processes); |
7577 | defsubr (&Sprocess_list); | |
7578 | defsubr (&Sstart_process); | |
d888760c GM |
7579 | #ifdef HAVE_SERIAL |
7580 | defsubr (&Sserial_process_configure); | |
7581 | defsubr (&Smake_serial_process); | |
7582 | #endif /* HAVE_SERIAL */ | |
d0d6b7c5 | 7583 | #ifdef HAVE_SOCKETS |
6b61353c | 7584 | defsubr (&Sset_network_process_option); |
e690ca94 | 7585 | defsubr (&Smake_network_process); |
991234f0 | 7586 | defsubr (&Sformat_network_address); |
d0d6b7c5 | 7587 | #endif /* HAVE_SOCKETS */ |
6b61353c KH |
7588 | #if defined(HAVE_SOCKETS) && defined(HAVE_NET_IF_H) && defined(HAVE_SYS_IOCTL_H) |
7589 | #ifdef SIOCGIFCONF | |
7590 | defsubr (&Snetwork_interface_list); | |
7591 | #endif | |
7592 | #if defined(SIOCGIFADDR) || defined(SIOCGIFHWADDR) || defined(SIOCGIFFLAGS) | |
7593 | defsubr (&Snetwork_interface_info); | |
7594 | #endif | |
7595 | #endif /* HAVE_SOCKETS ... */ | |
e690ca94 KS |
7596 | #ifdef DATAGRAM_SOCKETS |
7597 | defsubr (&Sprocess_datagram_address); | |
7598 | defsubr (&Sset_process_datagram_address); | |
7599 | #endif | |
d0d6b7c5 JB |
7600 | defsubr (&Saccept_process_output); |
7601 | defsubr (&Sprocess_send_region); | |
7602 | defsubr (&Sprocess_send_string); | |
7603 | defsubr (&Sinterrupt_process); | |
7604 | defsubr (&Skill_process); | |
7605 | defsubr (&Squit_process); | |
7606 | defsubr (&Sstop_process); | |
7607 | defsubr (&Scontinue_process); | |
b81ea5ef | 7608 | defsubr (&Sprocess_running_child_p); |
d0d6b7c5 JB |
7609 | defsubr (&Sprocess_send_eof); |
7610 | defsubr (&Ssignal_process); | |
7611 | defsubr (&Swaiting_for_user_input_p); | |
d888760c | 7612 | defsubr (&Sprocess_type); |
0fa1789e KH |
7613 | defsubr (&Sset_process_coding_system); |
7614 | defsubr (&Sprocess_coding_system); | |
03f04413 KH |
7615 | defsubr (&Sset_process_filter_multibyte); |
7616 | defsubr (&Sprocess_filter_multibyte_p); | |
934e2a68 | 7617 | defsubr (&Slist_system_processes); |
a20878b6 | 7618 | defsubr (&Sprocess_attributes); |
d0d6b7c5 JB |
7619 | } |
7620 | ||
6720a7fb JB |
7621 | \f |
7622 | #else /* not subprocesses */ | |
7623 | ||
7624 | #include <sys/types.h> | |
7625 | #include <errno.h> | |
934e2a68 EZ |
7626 | #include <sys/stat.h> |
7627 | #include <stdlib.h> | |
7628 | #include <fcntl.h> | |
7629 | #ifdef HAVE_UNISTD_H | |
7630 | #include <unistd.h> | |
7631 | #endif | |
6720a7fb JB |
7632 | |
7633 | #include "lisp.h" | |
7634 | #include "systime.h" | |
5bbf78c1 | 7635 | #include "character.h" |
52a1b894 | 7636 | #include "coding.h" |
6720a7fb | 7637 | #include "termopts.h" |
81afb6d1 | 7638 | #include "sysselect.h" |
6720a7fb | 7639 | |
ff11dfa1 | 7640 | extern int frame_garbaged; |
6720a7fb | 7641 | |
f694e5d2 KH |
7642 | extern EMACS_TIME timer_check (); |
7643 | extern int timers_run; | |
6720a7fb | 7644 | |
8c57b2e5 | 7645 | Lisp_Object QCtype, QCname; |
9057ff80 | 7646 | |
6a1bab0e EZ |
7647 | Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname, Qtpgid; |
7648 | Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime, Qcstime; | |
7649 | Lisp_Object Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs; | |
7650 | Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtime, Qctime; | |
7651 | ||
6720a7fb JB |
7652 | /* As described above, except assuming that there are no subprocesses: |
7653 | ||
7654 | Wait for timeout to elapse and/or keyboard input to be available. | |
7655 | ||
7656 | time_limit is: | |
7657 | timeout in seconds, or | |
7658 | zero for no limit, or | |
7659 | -1 means gobble data immediately available but don't wait for any. | |
7660 | ||
f76475ad | 7661 | read_kbd is a Lisp_Object: |
6720a7fb JB |
7662 | 0 to ignore keyboard input, or |
7663 | 1 to return when input is available, or | |
7664 | -1 means caller will actually read the input, so don't throw to | |
7665 | the quit handler. | |
b89a415a KS |
7666 | |
7667 | see full version for other parameters. We know that wait_proc will | |
7668 | always be NULL, since `subprocesses' isn't defined. | |
6720a7fb JB |
7669 | |
7670 | do_display != 0 means redisplay should be done to show subprocess | |
5164ee8e | 7671 | output that arrives. |
6720a7fb | 7672 | |
e0f24100 | 7673 | Return true if we received input from any process. */ |
6720a7fb JB |
7674 | |
7675 | int | |
214d6069 KS |
7676 | wait_reading_process_output (time_limit, microsecs, read_kbd, do_display, |
7677 | wait_for_cell, wait_proc, just_wait_proc) | |
b89a415a KS |
7678 | int time_limit, microsecs, read_kbd, do_display; |
7679 | Lisp_Object wait_for_cell; | |
7680 | struct Lisp_Process *wait_proc; | |
7681 | int just_wait_proc; | |
6720a7fb | 7682 | { |
52fd88d3 | 7683 | register int nfds; |
f694e5d2 | 7684 | EMACS_TIME end_time, timeout; |
8db121c4 | 7685 | SELECT_TYPE waitchannels; |
f694e5d2 | 7686 | int xerrno; |
6720a7fb JB |
7687 | |
7688 | /* What does time_limit really mean? */ | |
7689 | if (time_limit || microsecs) | |
7690 | { | |
6720a7fb | 7691 | EMACS_GET_TIME (end_time); |
52fd88d3 | 7692 | EMACS_SET_SECS_USECS (timeout, time_limit, microsecs); |
6720a7fb JB |
7693 | EMACS_ADD_TIME (end_time, end_time, timeout); |
7694 | } | |
6720a7fb JB |
7695 | |
7696 | /* Turn off periodic alarms (in case they are in use) | |
75eb23f1 | 7697 | and then turn off any other atimers, |
6720a7fb | 7698 | because the select emulator uses alarms. */ |
75eb23f1 | 7699 | stop_polling (); |
30904ab7 | 7700 | turn_on_atimers (0); |
6720a7fb | 7701 | |
52fd88d3 | 7702 | while (1) |
6720a7fb | 7703 | { |
bae8d137 | 7704 | int timeout_reduced_for_timers = 0; |
6720a7fb | 7705 | |
6720a7fb JB |
7706 | /* If calling from keyboard input, do not quit |
7707 | since we want to return C-g as an input character. | |
7708 | Otherwise, do pending quit if requested. */ | |
b89a415a | 7709 | if (read_kbd >= 0) |
6720a7fb JB |
7710 | QUIT; |
7711 | ||
0a65b032 | 7712 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 7713 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
0a65b032 RS |
7714 | break; |
7715 | ||
bae8d137 RS |
7716 | /* Compute time from now till when time limit is up */ |
7717 | /* Exit if already run out */ | |
52fd88d3 EZ |
7718 | if (time_limit == -1) |
7719 | { | |
7720 | /* -1 specified for timeout means | |
7721 | gobble output available now | |
7722 | but don't wait at all. */ | |
7723 | ||
7724 | EMACS_SET_SECS_USECS (timeout, 0, 0); | |
7725 | } | |
7726 | else if (time_limit || microsecs) | |
6720a7fb | 7727 | { |
f694e5d2 KH |
7728 | EMACS_GET_TIME (timeout); |
7729 | EMACS_SUB_TIME (timeout, end_time, timeout); | |
7730 | if (EMACS_TIME_NEG_P (timeout)) | |
6720a7fb JB |
7731 | break; |
7732 | } | |
52fd88d3 EZ |
7733 | else |
7734 | { | |
7735 | EMACS_SET_SECS_USECS (timeout, 100000, 0); | |
7736 | } | |
6720a7fb | 7737 | |
bae8d137 RS |
7738 | /* If our caller will not immediately handle keyboard events, |
7739 | run timer events directly. | |
7740 | (Callers that will immediately read keyboard events | |
7741 | call timer_delay on their own.) */ | |
f3fbd155 | 7742 | if (NILP (wait_for_cell)) |
bae8d137 RS |
7743 | { |
7744 | EMACS_TIME timer_delay; | |
0a65b032 | 7745 | |
9baacf76 | 7746 | do |
0a65b032 | 7747 | { |
9baacf76 GM |
7748 | int old_timers_run = timers_run; |
7749 | timer_delay = timer_check (1); | |
7750 | if (timers_run != old_timers_run && do_display) | |
7751 | /* We must retry, since a timer may have requeued itself | |
7752 | and that could alter the time delay. */ | |
3007ebfb | 7753 | redisplay_preserve_echo_area (14); |
9baacf76 GM |
7754 | else |
7755 | break; | |
0a65b032 | 7756 | } |
9baacf76 | 7757 | while (!detect_input_pending ()); |
0a65b032 | 7758 | |
52fd88d3 | 7759 | /* If there is unread keyboard input, also return. */ |
b89a415a | 7760 | if (read_kbd != 0 |
52fd88d3 EZ |
7761 | && requeued_events_pending_p ()) |
7762 | break; | |
7763 | ||
f694e5d2 | 7764 | if (! EMACS_TIME_NEG_P (timer_delay) && time_limit != -1) |
bae8d137 RS |
7765 | { |
7766 | EMACS_TIME difference; | |
f694e5d2 | 7767 | EMACS_SUB_TIME (difference, timer_delay, timeout); |
bae8d137 RS |
7768 | if (EMACS_TIME_NEG_P (difference)) |
7769 | { | |
f694e5d2 | 7770 | timeout = timer_delay; |
bae8d137 RS |
7771 | timeout_reduced_for_timers = 1; |
7772 | } | |
7773 | } | |
7774 | } | |
7775 | ||
6720a7fb JB |
7776 | /* Cause C-g and alarm signals to take immediate action, |
7777 | and cause input available signals to zero out timeout. */ | |
b89a415a | 7778 | if (read_kbd < 0) |
6720a7fb JB |
7779 | set_waiting_for_input (&timeout); |
7780 | ||
0a65b032 RS |
7781 | /* Wait till there is something to do. */ |
7782 | ||
b89a415a | 7783 | if (! read_kbd && NILP (wait_for_cell)) |
0a65b032 RS |
7784 | FD_ZERO (&waitchannels); |
7785 | else | |
7786 | FD_SET (0, &waitchannels); | |
7787 | ||
ff11dfa1 | 7788 | /* If a frame has been newly mapped and needs updating, |
6720a7fb | 7789 | reprocess its display stuff. */ |
5164ee8e | 7790 | if (frame_garbaged && do_display) |
0a65b032 RS |
7791 | { |
7792 | clear_waiting_for_input (); | |
3007ebfb | 7793 | redisplay_preserve_echo_area (15); |
b89a415a | 7794 | if (read_kbd < 0) |
0a65b032 RS |
7795 | set_waiting_for_input (&timeout); |
7796 | } | |
6720a7fb | 7797 | |
b89a415a | 7798 | if (read_kbd && detect_input_pending ()) |
1861b214 RS |
7799 | { |
7800 | nfds = 0; | |
7801 | FD_ZERO (&waitchannels); | |
7802 | } | |
7803 | else | |
7804 | nfds = select (1, &waitchannels, (SELECT_TYPE *)0, (SELECT_TYPE *)0, | |
7805 | &timeout); | |
f694e5d2 KH |
7806 | |
7807 | xerrno = errno; | |
6720a7fb JB |
7808 | |
7809 | /* Make C-g and alarm signals set flags again */ | |
7810 | clear_waiting_for_input (); | |
7811 | ||
7812 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 7813 | do_pending_window_change (0); |
6720a7fb | 7814 | |
f694e5d2 KH |
7815 | if (time_limit && nfds == 0 && ! timeout_reduced_for_timers) |
7816 | /* We waited the full specified time, so return now. */ | |
7817 | break; | |
7818 | ||
6720a7fb JB |
7819 | if (nfds == -1) |
7820 | { | |
7821 | /* If the system call was interrupted, then go around the | |
7822 | loop again. */ | |
f694e5d2 | 7823 | if (xerrno == EINTR) |
8db121c4 | 7824 | FD_ZERO (&waitchannels); |
f694e5d2 | 7825 | else |
68c45bf0 | 7826 | error ("select error: %s", emacs_strerror (xerrno)); |
6720a7fb | 7827 | } |
89f1e540 | 7828 | #ifdef SOLARIS2 |
6720a7fb JB |
7829 | else if (nfds > 0 && (waitchannels & 1) && interrupt_input) |
7830 | /* System sometimes fails to deliver SIGIO. */ | |
7831 | kill (getpid (), SIGIO); | |
7832 | #endif | |
7324d660 | 7833 | #ifdef SIGIO |
b89a415a | 7834 | if (read_kbd && interrupt_input && (waitchannels & 1)) |
e643c5be | 7835 | kill (getpid (), SIGIO); |
7324d660 | 7836 | #endif |
6720a7fb | 7837 | |
f694e5d2 KH |
7838 | /* Check for keyboard input */ |
7839 | ||
b89a415a | 7840 | if (read_kbd |
78c1afb6 | 7841 | && detect_input_pending_run_timers (do_display)) |
f694e5d2 | 7842 | { |
78c1afb6 | 7843 | swallow_events (do_display); |
f694e5d2 | 7844 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 | 7845 | break; |
78c1afb6 EZ |
7846 | } |
7847 | ||
52fd88d3 | 7848 | /* If there is unread keyboard input, also return. */ |
b89a415a | 7849 | if (read_kbd |
52fd88d3 EZ |
7850 | && requeued_events_pending_p ()) |
7851 | break; | |
7852 | ||
f854a00b RS |
7853 | /* If wait_for_cell. check for keyboard input |
7854 | but don't run any timers. | |
7855 | ??? (It seems wrong to me to check for keyboard | |
7856 | input at all when wait_for_cell, but the code | |
7857 | has been this way since July 1994. | |
7858 | Try changing this after version 19.31.) */ | |
f3fbd155 | 7859 | if (! NILP (wait_for_cell) |
f854a00b RS |
7860 | && detect_input_pending ()) |
7861 | { | |
7862 | swallow_events (do_display); | |
7863 | if (detect_input_pending ()) | |
7864 | break; | |
7865 | } | |
7866 | ||
0a65b032 | 7867 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 7868 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
0a65b032 | 7869 | break; |
6720a7fb JB |
7870 | } |
7871 | ||
a87b802f JB |
7872 | start_polling (); |
7873 | ||
6720a7fb JB |
7874 | return 0; |
7875 | } | |
7876 | ||
7877 | ||
e2ba787b PJ |
7878 | /* Don't confuse make-docfile by having two doc strings for this function. |
7879 | make-docfile does not pay attention to #if, for good reason! */ | |
6720a7fb | 7880 | DEFUN ("get-buffer-process", Fget_buffer_process, Sget_buffer_process, 1, 1, 0, |
fdb82f93 PJ |
7881 | 0) |
7882 | (name) | |
6720a7fb JB |
7883 | register Lisp_Object name; |
7884 | { | |
7885 | return Qnil; | |
7886 | } | |
7887 | ||
e2ba787b PJ |
7888 | /* Don't confuse make-docfile by having two doc strings for this function. |
7889 | make-docfile does not pay attention to #if, for good reason! */ | |
52a1b894 | 7890 | DEFUN ("process-inherit-coding-system-flag", |
fdb82f93 PJ |
7891 | Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag, |
7892 | 1, 1, 0, | |
7893 | 0) | |
7894 | (process) | |
52a1b894 EZ |
7895 | register Lisp_Object process; |
7896 | { | |
7897 | /* Ignore the argument and return the value of | |
7898 | inherit-process-coding-system. */ | |
7899 | return inherit_process_coding_system ? Qt : Qnil; | |
7900 | } | |
7901 | ||
6720a7fb JB |
7902 | /* Kill all processes associated with `buffer'. |
7903 | If `buffer' is nil, kill all processes. | |
7904 | Since we have no subprocesses, this does nothing. */ | |
7905 | ||
d9bb0c32 | 7906 | void |
6720a7fb JB |
7907 | kill_buffer_processes (buffer) |
7908 | Lisp_Object buffer; | |
7909 | { | |
7910 | } | |
7911 | ||
934e2a68 EZ |
7912 | DEFUN ("list-system-processes", Flist_system_processes, Slist_system_processes, |
7913 | 0, 0, 0, | |
7914 | doc: /* Return a list of numerical process IDs of all running processes. | |
7915 | If this functionality is unsupported, return nil. | |
7916 | ||
a20878b6 | 7917 | See `process-attributes' for getting attributes of a process given its ID. */) |
934e2a68 EZ |
7918 | () |
7919 | { | |
6a1bab0e | 7920 | return list_system_processes (); |
934e2a68 EZ |
7921 | } |
7922 | ||
a20878b6 MB |
7923 | DEFUN ("process-attributes", Fprocess_attributes, |
7924 | Sprocess_attributes, 1, 1, 0, | |
934e2a68 EZ |
7925 | doc: /* Return attributes of the process given by its PID, a number. |
7926 | ||
7927 | Value is an alist where each element is a cons cell of the form | |
7928 | ||
a7713d66 | 7929 | \(KEY . VALUE) |
934e2a68 EZ |
7930 | |
7931 | If this functionality is unsupported, the value is nil. | |
7932 | ||
7933 | See `list-system-processes' for getting a list of all process IDs. | |
7934 | ||
a7713d66 RW |
7935 | The KEYs of the attributes that this function may return are listed |
7936 | below, together with the type of the associated VALUE (in parentheses). | |
8f8b082a EZ |
7937 | Not all platforms support all of these attributes; unsupported |
7938 | attributes will not appear in the returned alist. | |
934e2a68 EZ |
7939 | Unless explicitly indicated otherwise, numbers can have either |
7940 | integer or floating point values. | |
7941 | ||
7942 | euid -- Effective user User ID of the process (number) | |
7943 | user -- User name corresponding to euid (string) | |
7944 | egid -- Effective user Group ID of the process (number) | |
7945 | group -- Group name corresponding to egid (string) | |
7946 | comm -- Command name (executable name only) (string) | |
7947 | state -- Process state code, such as "S", "R", or "T" (string) | |
7948 | ppid -- Parent process ID (number) | |
7949 | pgrp -- Process group ID (number) | |
7950 | sess -- Session ID, i.e. process ID of session leader (number) | |
7951 | ttname -- Controlling tty name (string) | |
7952 | tpgid -- ID of foreground process group on the process's tty (number) | |
7953 | minflt -- number of minor page faults (number) | |
7954 | majflt -- number of major page faults (number) | |
7955 | cminflt -- cumulative number of minor page faults (number) | |
7956 | cmajflt -- cumulative number of major page faults (number) | |
7957 | utime -- user time used by the process, in the (HIGH LOW USEC) format | |
7958 | stime -- system time used by the process, in the (HIGH LOW USEC) format | |
89c874cf | 7959 | time -- sum of utime and stime, in the (HIGH LOW USEC) format |
934e2a68 EZ |
7960 | cutime -- user time used by the process and its children, (HIGH LOW USEC) |
7961 | cstime -- system time used by the process and its children, (HIGH LOW USEC) | |
89c874cf | 7962 | ctime -- sum of cutime and cstime, in the (HIGH LOW USEC) format |
934e2a68 EZ |
7963 | pri -- priority of the process (number) |
7964 | nice -- nice value of the process (number) | |
7965 | thcount -- process thread count (number) | |
7966 | start -- time the process started, in the (HIGH LOW USEC) format | |
7967 | vsize -- virtual memory size of the process in KB's (number) | |
7968 | rss -- resident set size of the process in KB's (number) | |
7969 | etime -- elapsed time the process is running, in (HIGH LOW USEC) format | |
7970 | pcpu -- percents of CPU time used by the process (floating-point number) | |
7971 | pmem -- percents of total physical memory used by process's resident set | |
7972 | (floating-point number) | |
7973 | args -- command line which invoked the process (string). */) | |
7974 | (pid) | |
7975 | ||
7976 | Lisp_Object pid; | |
7977 | { | |
6a1bab0e | 7978 | return system_process_attributes (pid); |
934e2a68 EZ |
7979 | } |
7980 | ||
02b9b4fd | 7981 | void |
6720a7fb JB |
7982 | init_process () |
7983 | { | |
7984 | } | |
7985 | ||
02b9b4fd | 7986 | void |
6720a7fb JB |
7987 | syms_of_process () |
7988 | { | |
9057ff80 KS |
7989 | QCtype = intern (":type"); |
7990 | staticpro (&QCtype); | |
8c57b2e5 EZ |
7991 | QCname = intern (":name"); |
7992 | staticpro (&QCname); | |
6a1bab0e EZ |
7993 | QCtype = intern (":type"); |
7994 | staticpro (&QCtype); | |
7995 | QCname = intern (":name"); | |
7996 | staticpro (&QCname); | |
7997 | Qeuid = intern ("euid"); | |
7998 | staticpro (&Qeuid); | |
7999 | Qegid = intern ("egid"); | |
8000 | staticpro (&Qegid); | |
8001 | Quser = intern ("user"); | |
8002 | staticpro (&Quser); | |
8003 | Qgroup = intern ("group"); | |
8004 | staticpro (&Qgroup); | |
8005 | Qcomm = intern ("comm"); | |
8006 | staticpro (&Qcomm); | |
8007 | Qstate = intern ("state"); | |
8008 | staticpro (&Qstate); | |
8009 | Qppid = intern ("ppid"); | |
8010 | staticpro (&Qppid); | |
8011 | Qpgrp = intern ("pgrp"); | |
8012 | staticpro (&Qpgrp); | |
8013 | Qsess = intern ("sess"); | |
8014 | staticpro (&Qsess); | |
8015 | Qttname = intern ("ttname"); | |
8016 | staticpro (&Qttname); | |
8017 | Qtpgid = intern ("tpgid"); | |
8018 | staticpro (&Qtpgid); | |
8019 | Qminflt = intern ("minflt"); | |
8020 | staticpro (&Qminflt); | |
8021 | Qmajflt = intern ("majflt"); | |
8022 | staticpro (&Qmajflt); | |
8023 | Qcminflt = intern ("cminflt"); | |
8024 | staticpro (&Qcminflt); | |
8025 | Qcmajflt = intern ("cmajflt"); | |
8026 | staticpro (&Qcmajflt); | |
8027 | Qutime = intern ("utime"); | |
8028 | staticpro (&Qutime); | |
8029 | Qstime = intern ("stime"); | |
8030 | staticpro (&Qstime); | |
8031 | Qtime = intern ("time"); | |
8032 | staticpro (&Qtime); | |
8033 | Qcutime = intern ("cutime"); | |
8034 | staticpro (&Qcutime); | |
8035 | Qcstime = intern ("cstime"); | |
8036 | staticpro (&Qcstime); | |
8037 | Qctime = intern ("ctime"); | |
8038 | staticpro (&Qctime); | |
8039 | Qpri = intern ("pri"); | |
8040 | staticpro (&Qpri); | |
8041 | Qnice = intern ("nice"); | |
8042 | staticpro (&Qnice); | |
8043 | Qthcount = intern ("thcount"); | |
8044 | staticpro (&Qthcount); | |
8045 | Qstart = intern ("start"); | |
8046 | staticpro (&Qstart); | |
8047 | Qvsize = intern ("vsize"); | |
8048 | staticpro (&Qvsize); | |
8049 | Qrss = intern ("rss"); | |
8050 | staticpro (&Qrss); | |
8051 | Qetime = intern ("etime"); | |
8052 | staticpro (&Qetime); | |
8053 | Qpcpu = intern ("pcpu"); | |
8054 | staticpro (&Qpcpu); | |
8055 | Qpmem = intern ("pmem"); | |
8056 | staticpro (&Qpmem); | |
8057 | Qargs = intern ("args"); | |
8058 | staticpro (&Qargs); | |
9057ff80 | 8059 | |
6720a7fb | 8060 | defsubr (&Sget_buffer_process); |
52a1b894 | 8061 | defsubr (&Sprocess_inherit_coding_system_flag); |
934e2a68 | 8062 | defsubr (&Slist_system_processes); |
a20878b6 | 8063 | defsubr (&Sprocess_attributes); |
6720a7fb JB |
8064 | } |
8065 | ||
8066 | \f | |
8067 | #endif /* not subprocesses */ | |
6b61353c KH |
8068 | |
8069 | /* arch-tag: 3706c011-7b9a-4117-bd4f-59e7f701a4c4 | |
8070 | (do not change this comment) */ |