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, |
114f9c96 | 4 | 2005, 2006, 2007, 2008, 2009, 2010 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 | 23 | #include <signal.h> |
d0d6b7c5 JB |
24 | #include <stdio.h> |
25 | #include <errno.h> | |
26 | #include <setjmp.h> | |
27 | #include <sys/types.h> /* some typedefs are used in sys/file.h */ | |
28 | #include <sys/file.h> | |
29 | #include <sys/stat.h> | |
d7306fe6 | 30 | #include <setjmp.h> |
2026418c YM |
31 | #ifdef HAVE_INTTYPES_H |
32 | #include <inttypes.h> | |
33 | #endif | |
63136da6 | 34 | #include <stdlib.h> |
934e2a68 | 35 | |
93b4f699 RS |
36 | #ifdef HAVE_UNISTD_H |
37 | #include <unistd.h> | |
38 | #endif | |
e98d950b | 39 | #include <fcntl.h> |
e98d950b | 40 | |
f388c88a EZ |
41 | /* Only MS-DOS does not define `subprocesses'. */ |
42 | #ifdef subprocesses | |
43 | ||
d0d6b7c5 JB |
44 | #include <sys/socket.h> |
45 | #include <netdb.h> | |
46 | #include <netinet/in.h> | |
47 | #include <arpa/inet.h> | |
e690ca94 KS |
48 | |
49 | /* Are local (unix) sockets supported? */ | |
4624371d | 50 | #if defined (HAVE_SYS_UN_H) |
e690ca94 KS |
51 | #if !defined (AF_LOCAL) && defined (AF_UNIX) |
52 | #define AF_LOCAL AF_UNIX | |
53 | #endif | |
54 | #ifdef AF_LOCAL | |
55 | #define HAVE_LOCAL_SOCKETS | |
56 | #include <sys/un.h> | |
57 | #endif | |
58 | #endif | |
d0d6b7c5 | 59 | |
1d29df59 | 60 | #if defined(HAVE_SYS_IOCTL_H) |
d0d6b7c5 | 61 | #include <sys/ioctl.h> |
32bc6709 DN |
62 | #if defined(HAVE_NET_IF_H) |
63 | #include <net/if.h> | |
64 | #endif /* HAVE_NET_IF_H */ | |
1d29df59 | 65 | #endif /* HAVE_SYS_IOCTL_H */ |
d0d6b7c5 JB |
66 | |
67 | #ifdef NEED_BSDTTY | |
68 | #include <bsdtty.h> | |
69 | #endif | |
70 | ||
e62cab61 DL |
71 | #ifdef HAVE_SYS_WAIT |
72 | #include <sys/wait.h> | |
73 | #endif | |
d0d6b7c5 | 74 | |
08116b48 CY |
75 | #ifdef HAVE_RES_INIT |
76 | #include <netinet/in.h> | |
77 | #include <arpa/nameser.h> | |
78 | #include <resolv.h> | |
79 | #endif | |
80 | ||
3d608a86 J |
81 | #ifdef HAVE_UTIL_H |
82 | #include <util.h> | |
83 | #endif | |
84 | ||
f388c88a EZ |
85 | #endif /* subprocesses */ |
86 | ||
fa8459a3 | 87 | #include "lisp.h" |
d0d6b7c5 | 88 | #include "systime.h" |
36ebaafa | 89 | #include "systty.h" |
d0d6b7c5 | 90 | |
d0d6b7c5 JB |
91 | #include "window.h" |
92 | #include "buffer.h" | |
5bbf78c1 | 93 | #include "character.h" |
0fa1789e | 94 | #include "coding.h" |
d0d6b7c5 | 95 | #include "process.h" |
428a555e | 96 | #include "frame.h" |
d0d6b7c5 JB |
97 | #include "termhooks.h" |
98 | #include "termopts.h" | |
99 | #include "commands.h" | |
3ec68006 | 100 | #include "keyboard.h" |
ececcbec | 101 | #include "blockinput.h" |
dfcf069d | 102 | #include "dispextern.h" |
e0016554 | 103 | #include "composite.h" |
30904ab7 | 104 | #include "atimer.h" |
f388c88a EZ |
105 | #include "sysselect.h" |
106 | #include "syssignal.h" | |
107 | #include "syswait.h" | |
8af55556 TZ |
108 | #ifdef HAVE_GNUTLS |
109 | #include "gnutls.h" | |
110 | #endif | |
d0d6b7c5 | 111 | |
872870b2 JD |
112 | #if defined (USE_GTK) || defined (HAVE_GCONF) |
113 | #include "xgselect.h" | |
114 | #endif /* defined (USE_GTK) || defined (HAVE_GCONF) */ | |
3d608a86 J |
115 | #ifdef HAVE_NS |
116 | #include "nsterm.h" | |
117 | #endif | |
fdb183d6 DN |
118 | extern int timers_run; |
119 | ||
120 | Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname, Qtpgid; | |
121 | Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime, Qcstime; | |
122 | Lisp_Object Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs; | |
123 | Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtime, Qctime; | |
124 | Lisp_Object QCname, QCtype; | |
125 | \f | |
126 | /* Non-zero if keyboard input is on hold, zero otherwise. */ | |
127 | ||
128 | static int kbd_is_on_hold; | |
129 | ||
130 | /* Nonzero means delete a process right away if it exits. */ | |
131 | static int delete_exited_processes; | |
132 | ||
133 | /* Nonzero means don't run process sentinels. This is used | |
134 | when exiting. */ | |
135 | int inhibit_sentinels; | |
136 | ||
f388c88a EZ |
137 | #ifdef subprocesses |
138 | ||
dd2281ae | 139 | Lisp_Object Qprocessp; |
324e68ba | 140 | Lisp_Object Qrun, Qstop, Qsignal; |
e690ca94 | 141 | Lisp_Object Qopen, Qclosed, Qconnect, Qfailed, Qlisten; |
f00c449b | 142 | Lisp_Object Qlocal, Qipv4, Qdatagram, Qseqpacket; |
d888760c | 143 | Lisp_Object Qreal, Qnetwork, Qserial; |
e1652a86 KS |
144 | #ifdef AF_INET6 |
145 | Lisp_Object Qipv6; | |
146 | #endif | |
d888760c GM |
147 | Lisp_Object QCport, QCspeed, QCprocess; |
148 | Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven; | |
149 | Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary; | |
f388c88a | 150 | Lisp_Object QCbuffer, QChost, QCservice; |
e690ca94 | 151 | Lisp_Object QClocal, QCremote, QCcoding; |
9057ff80 | 152 | Lisp_Object QCserver, QCnowait, QCnoquery, QCstop; |
faa7db08 | 153 | Lisp_Object QCsentinel, QClog, QCoptions, QCplist; |
6545aada | 154 | Lisp_Object Qlast_nonmenu_event; |
3635ecad JR |
155 | /* QCfamily is declared and initialized in xfaces.c, |
156 | QCfilter in keyboard.c. */ | |
157 | extern Lisp_Object QCfamily, QCfilter; | |
158 | ||
d0d6b7c5 JB |
159 | /* Qexit is declared and initialized in eval.c. */ |
160 | ||
e0f712ba AC |
161 | /* QCfamily is defined in xfaces.c. */ |
162 | extern Lisp_Object QCfamily; | |
163 | /* QCfilter is defined in keyboard.c. */ | |
164 | extern Lisp_Object QCfilter; | |
165 | ||
d888760c GM |
166 | #define NETCONN_P(p) (EQ (XPROCESS (p)->type, Qnetwork)) |
167 | #define NETCONN1_P(p) (EQ ((p)->type, Qnetwork)) | |
168 | #define SERIALCONN_P(p) (EQ (XPROCESS (p)->type, Qserial)) | |
169 | #define SERIALCONN1_P(p) (EQ ((p)->type, Qserial)) | |
d0d6b7c5 JB |
170 | |
171 | /* Define first descriptor number available for subprocesses. */ | |
d0d6b7c5 | 172 | #define FIRST_PROC_DESC 3 |
d0d6b7c5 JB |
173 | |
174 | /* Define SIGCHLD as an alias for SIGCLD. There are many conditionals | |
175 | testing SIGCHLD. */ | |
176 | ||
177 | #if !defined (SIGCHLD) && defined (SIGCLD) | |
178 | #define SIGCHLD SIGCLD | |
179 | #endif /* SIGCLD */ | |
180 | ||
8ea90aa3 | 181 | extern const char *get_operating_system_release (void); |
41d03b9a | 182 | |
d888760c GM |
183 | /* From sysdep.c or w32.c */ |
184 | extern int serial_open (char *port); | |
185 | extern void serial_configure (struct Lisp_Process *p, Lisp_Object contact); | |
d888760c | 186 | |
5f0929a7 RS |
187 | #ifndef HAVE_H_ERRNO |
188 | extern int h_errno; | |
189 | #endif | |
190 | ||
d0d6b7c5 JB |
191 | /* t means use pty, nil means use a pipe, |
192 | maybe other values to come. */ | |
dd2281ae | 193 | static Lisp_Object Vprocess_connection_type; |
d0d6b7c5 | 194 | |
17d02632 KH |
195 | /* These next two vars are non-static since sysdep.c uses them in the |
196 | emulation of `select'. */ | |
d0d6b7c5 | 197 | /* Number of events of change of status of a process. */ |
17d02632 | 198 | int process_tick; |
d0d6b7c5 | 199 | /* Number of events for which the user or sentinel has been notified. */ |
17d02632 | 200 | int update_tick; |
d0d6b7c5 | 201 | |
dd2a17ab KS |
202 | /* Define NON_BLOCKING_CONNECT if we can support non-blocking connects. */ |
203 | ||
204 | #ifdef BROKEN_NON_BLOCKING_CONNECT | |
205 | #undef NON_BLOCKING_CONNECT | |
206 | #else | |
207 | #ifndef NON_BLOCKING_CONNECT | |
dd2a17ab KS |
208 | #ifdef HAVE_SELECT |
209 | #if defined (HAVE_GETPEERNAME) || defined (GNU_LINUX) | |
210 | #if defined (O_NONBLOCK) || defined (O_NDELAY) | |
211 | #if defined (EWOULDBLOCK) || defined (EINPROGRESS) | |
212 | #define NON_BLOCKING_CONNECT | |
213 | #endif /* EWOULDBLOCK || EINPROGRESS */ | |
214 | #endif /* O_NONBLOCK || O_NDELAY */ | |
215 | #endif /* HAVE_GETPEERNAME || GNU_LINUX */ | |
216 | #endif /* HAVE_SELECT */ | |
dd2a17ab KS |
217 | #endif /* NON_BLOCKING_CONNECT */ |
218 | #endif /* BROKEN_NON_BLOCKING_CONNECT */ | |
219 | ||
e690ca94 KS |
220 | /* Define DATAGRAM_SOCKETS if datagrams can be used safely on |
221 | this system. We need to read full packets, so we need a | |
222 | "non-destructive" select. So we require either native select, | |
223 | or emulation of select using FIONREAD. */ | |
224 | ||
e690ca94 KS |
225 | #ifdef BROKEN_DATAGRAM_SOCKETS |
226 | #undef DATAGRAM_SOCKETS | |
227 | #else | |
228 | #ifndef DATAGRAM_SOCKETS | |
e690ca94 KS |
229 | #if defined (HAVE_SELECT) || defined (FIONREAD) |
230 | #if defined (HAVE_SENDTO) && defined (HAVE_RECVFROM) && defined (EMSGSIZE) | |
231 | #define DATAGRAM_SOCKETS | |
232 | #endif /* HAVE_SENDTO && HAVE_RECVFROM && EMSGSIZE */ | |
233 | #endif /* HAVE_SELECT || FIONREAD */ | |
e690ca94 KS |
234 | #endif /* DATAGRAM_SOCKETS */ |
235 | #endif /* BROKEN_DATAGRAM_SOCKETS */ | |
236 | ||
f00c449b SM |
237 | #if defined HAVE_LOCAL_SOCKETS && defined DATAGRAM_SOCKETS |
238 | # define HAVE_SEQPACKET | |
239 | #endif | |
240 | ||
6b61353c KH |
241 | #if !defined (ADAPTIVE_READ_BUFFERING) && !defined (NO_ADAPTIVE_READ_BUFFERING) |
242 | #ifdef EMACS_HAS_USECS | |
243 | #define ADAPTIVE_READ_BUFFERING | |
244 | #endif | |
245 | #endif | |
246 | ||
247 | #ifdef ADAPTIVE_READ_BUFFERING | |
248 | #define READ_OUTPUT_DELAY_INCREMENT 10000 | |
249 | #define READ_OUTPUT_DELAY_MAX (READ_OUTPUT_DELAY_INCREMENT * 5) | |
250 | #define READ_OUTPUT_DELAY_MAX_MAX (READ_OUTPUT_DELAY_INCREMENT * 7) | |
251 | ||
db853b7a KS |
252 | /* Number of processes which have a non-zero read_output_delay, |
253 | and therefore might be delayed for adaptive read buffering. */ | |
6b61353c KH |
254 | |
255 | static int process_output_delay_count; | |
256 | ||
db853b7a | 257 | /* Non-zero if any process has non-nil read_output_skip. */ |
6b61353c KH |
258 | |
259 | static int process_output_skip; | |
260 | ||
261 | /* Non-nil means to delay reading process output to improve buffering. | |
262 | A value of t means that delay is reset after each send, any other | |
db853b7a KS |
263 | non-nil value does not reset the delay. A value of nil disables |
264 | adaptive read buffering completely. */ | |
6b61353c KH |
265 | static Lisp_Object Vprocess_adaptive_read_buffering; |
266 | #else | |
267 | #define process_output_delay_count 0 | |
268 | #endif | |
269 | ||
f57e2426 J |
270 | static int keyboard_bit_set (SELECT_TYPE *); |
271 | static void deactivate_process (Lisp_Object); | |
272 | static void status_notify (struct Lisp_Process *); | |
273 | static int read_process_output (Lisp_Object, int); | |
274 | static void create_pty (Lisp_Object); | |
41d03b9a | 275 | |
583dcae4 | 276 | /* If we support a window system, turn on the code to poll periodically |
44ade2e9 | 277 | to detect C-g. It isn't actually used when doing interrupt input. */ |
583dcae4 | 278 | #ifdef HAVE_WINDOW_SYSTEM |
44ade2e9 RS |
279 | #define POLL_FOR_INPUT |
280 | #endif | |
281 | ||
d3da34e0 JB |
282 | static Lisp_Object get_process (register Lisp_Object name); |
283 | static void exec_sentinel (Lisp_Object proc, Lisp_Object reason); | |
84af9896 | 284 | |
f388c88a EZ |
285 | /* Mask of bits indicating the descriptors that we wait for input on. */ |
286 | ||
287 | static SELECT_TYPE input_wait_mask; | |
288 | ||
994d9841 | 289 | /* Mask that excludes keyboard input descriptor(s). */ |
a69281ff RS |
290 | |
291 | static SELECT_TYPE non_keyboard_wait_mask; | |
292 | ||
994d9841 | 293 | /* Mask that excludes process input descriptor(s). */ |
b5dc1c83 RS |
294 | |
295 | static SELECT_TYPE non_process_wait_mask; | |
296 | ||
994d9841 NR |
297 | /* Mask for the gpm mouse input descriptor. */ |
298 | ||
299 | static SELECT_TYPE gpm_wait_mask; | |
300 | ||
bad49fc7 | 301 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
302 | /* Mask of bits indicating the descriptors that we wait for connect to |
303 | complete on. Once they complete, they are removed from this mask | |
304 | and added to the input_wait_mask and non_keyboard_wait_mask. */ | |
305 | ||
306 | static SELECT_TYPE connect_wait_mask; | |
307 | ||
308 | /* Number of bits set in connect_wait_mask. */ | |
309 | static int num_pending_connects; | |
310 | ||
bad49fc7 | 311 | #define IF_NON_BLOCKING_CONNECT(s) s |
f388c88a | 312 | #else /* NON_BLOCKING_CONNECT */ |
bad49fc7 | 313 | #define IF_NON_BLOCKING_CONNECT(s) |
f388c88a | 314 | #endif /* NON_BLOCKING_CONNECT */ |
bad49fc7 | 315 | |
7d0e672e RS |
316 | /* The largest descriptor currently in use for a process object. */ |
317 | static int max_process_desc; | |
318 | ||
a69281ff RS |
319 | /* The largest descriptor currently in use for keyboard input. */ |
320 | static int max_keyboard_desc; | |
d0d6b7c5 | 321 | |
994d9841 NR |
322 | /* The largest descriptor currently in use for gpm mouse input. */ |
323 | static int max_gpm_desc; | |
324 | ||
d0d6b7c5 | 325 | /* Indexed by descriptor, gives the process (if any) for that descriptor */ |
41f3aa98 | 326 | Lisp_Object chan_process[MAXDESC]; |
d0d6b7c5 JB |
327 | |
328 | /* Alist of elements (NAME . PROCESS) */ | |
41f3aa98 | 329 | Lisp_Object Vprocess_alist; |
d0d6b7c5 JB |
330 | |
331 | /* Buffered-ahead input char from process, indexed by channel. | |
332 | -1 means empty (no char is buffered). | |
333 | Used on sys V where the only way to tell if there is any | |
334 | output from the process is to read at least one char. | |
335 | Always -1 on systems that support FIONREAD. */ | |
336 | ||
e98d950b RS |
337 | /* Don't make static; need to access externally. */ |
338 | int proc_buffered_char[MAXDESC]; | |
dd2281ae | 339 | |
0fa1789e | 340 | /* Table of `struct coding-system' for each process. */ |
c7580538 KH |
341 | static struct coding_system *proc_decode_coding_system[MAXDESC]; |
342 | static struct coding_system *proc_encode_coding_system[MAXDESC]; | |
0fa1789e | 343 | |
e690ca94 KS |
344 | #ifdef DATAGRAM_SOCKETS |
345 | /* Table of `partner address' for datagram sockets. */ | |
346 | struct sockaddr_and_len { | |
347 | struct sockaddr *sa; | |
348 | int len; | |
349 | } datagram_address[MAXDESC]; | |
350 | #define DATAGRAM_CHAN_P(chan) (datagram_address[chan].sa != 0) | |
60f0fb11 | 351 | #define DATAGRAM_CONN_P(proc) (PROCESSP (proc) && datagram_address[XPROCESS (proc)->infd].sa != 0) |
e690ca94 KS |
352 | #else |
353 | #define DATAGRAM_CHAN_P(chan) (0) | |
354 | #define DATAGRAM_CONN_P(proc) (0) | |
355 | #endif | |
356 | ||
93b4f699 RS |
357 | /* Maximum number of bytes to send to a pty without an eof. */ |
358 | static int pty_max_bytes; | |
3b9a3dfa | 359 | |
875e6b94 | 360 | #ifdef HAVE_PTYS |
e62cab61 DL |
361 | #ifdef HAVE_PTY_H |
362 | #include <pty.h> | |
363 | #endif | |
875e6b94 | 364 | /* The file name of the pty opened by allocate_pty. */ |
3b9a3dfa RS |
365 | |
366 | static char pty_name[24]; | |
875e6b94 | 367 | #endif |
d0d6b7c5 JB |
368 | \f |
369 | /* Compute the Lisp form of the process status, p->status, from | |
370 | the numeric status that was returned by `wait'. */ | |
371 | ||
bba104c1 | 372 | static Lisp_Object status_convert (int); |
f9738840 | 373 | |
ff6daed3 | 374 | static void |
d3da34e0 | 375 | update_status (struct Lisp_Process *p) |
d0d6b7c5 | 376 | { |
6bfd98e7 | 377 | eassert (p->raw_status_new); |
bba104c1 | 378 | p->status = status_convert (p->raw_status); |
6bfd98e7 | 379 | p->raw_status_new = 0; |
d0d6b7c5 JB |
380 | } |
381 | ||
177c0ea7 | 382 | /* Convert a process status word in Unix format to |
d0d6b7c5 JB |
383 | the list that we use internally. */ |
384 | ||
ff6daed3 | 385 | static Lisp_Object |
bba104c1 | 386 | status_convert (int w) |
d0d6b7c5 JB |
387 | { |
388 | if (WIFSTOPPED (w)) | |
389 | return Fcons (Qstop, Fcons (make_number (WSTOPSIG (w)), Qnil)); | |
390 | else if (WIFEXITED (w)) | |
391 | return Fcons (Qexit, Fcons (make_number (WRETCODE (w)), | |
392 | WCOREDUMP (w) ? Qt : Qnil)); | |
393 | else if (WIFSIGNALED (w)) | |
394 | return Fcons (Qsignal, Fcons (make_number (WTERMSIG (w)), | |
395 | WCOREDUMP (w) ? Qt : Qnil)); | |
396 | else | |
397 | return Qrun; | |
398 | } | |
399 | ||
400 | /* Given a status-list, extract the three pieces of information | |
401 | and store them individually through the three pointers. */ | |
402 | ||
ff6daed3 | 403 | static void |
d3da34e0 | 404 | decode_status (Lisp_Object l, Lisp_Object *symbol, int *code, int *coredump) |
d0d6b7c5 JB |
405 | { |
406 | Lisp_Object tem; | |
407 | ||
bcd69aea | 408 | if (SYMBOLP (l)) |
d0d6b7c5 JB |
409 | { |
410 | *symbol = l; | |
411 | *code = 0; | |
412 | *coredump = 0; | |
413 | } | |
414 | else | |
415 | { | |
70949dac KR |
416 | *symbol = XCAR (l); |
417 | tem = XCDR (l); | |
418 | *code = XFASTINT (XCAR (tem)); | |
419 | tem = XCDR (tem); | |
d0d6b7c5 JB |
420 | *coredump = !NILP (tem); |
421 | } | |
422 | } | |
423 | ||
424 | /* Return a string describing a process status list. */ | |
425 | ||
116c423c | 426 | static Lisp_Object |
d3da34e0 | 427 | status_message (struct Lisp_Process *p) |
d0d6b7c5 | 428 | { |
116c423c | 429 | Lisp_Object status = p->status; |
d0d6b7c5 JB |
430 | Lisp_Object symbol; |
431 | int code, coredump; | |
432 | Lisp_Object string, string2; | |
433 | ||
434 | decode_status (status, &symbol, &code, &coredump); | |
435 | ||
436 | if (EQ (symbol, Qsignal) || EQ (symbol, Qstop)) | |
437 | { | |
68c45bf0 | 438 | char *signame; |
ca9c0567 | 439 | synchronize_system_messages_locale (); |
68c45bf0 | 440 | signame = strsignal (code); |
b97ad9ea | 441 | if (signame == 0) |
66bd43d1 KH |
442 | string = build_string ("unknown"); |
443 | else | |
444 | { | |
445 | int c1, c2; | |
446 | ||
447 | string = make_unibyte_string (signame, strlen (signame)); | |
448 | if (! NILP (Vlocale_coding_system)) | |
449 | string = (code_convert_string_norecord | |
450 | (string, Vlocale_coding_system, 0)); | |
62a6e103 | 451 | c1 = STRING_CHAR ((char *) SDATA (string)); |
66bd43d1 KH |
452 | c2 = DOWNCASE (c1); |
453 | if (c1 != c2) | |
4735b74e | 454 | Faset (string, make_number (0), make_number (c2)); |
66bd43d1 | 455 | } |
d0d6b7c5 | 456 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
d0d6b7c5 JB |
457 | return concat2 (string, string2); |
458 | } | |
459 | else if (EQ (symbol, Qexit)) | |
460 | { | |
116c423c KS |
461 | if (NETCONN1_P (p)) |
462 | return build_string (code == 0 ? "deleted\n" : "connection broken by remote peer\n"); | |
d0d6b7c5 JB |
463 | if (code == 0) |
464 | return build_string ("finished\n"); | |
f2980264 | 465 | string = Fnumber_to_string (make_number (code)); |
d0d6b7c5 | 466 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
e690ca94 KS |
467 | return concat3 (build_string ("exited abnormally with code "), |
468 | string, string2); | |
d0d6b7c5 | 469 | } |
dd2a17ab KS |
470 | else if (EQ (symbol, Qfailed)) |
471 | { | |
472 | string = Fnumber_to_string (make_number (code)); | |
473 | string2 = build_string ("\n"); | |
e690ca94 KS |
474 | return concat3 (build_string ("failed with code "), |
475 | string, string2); | |
dd2a17ab | 476 | } |
d0d6b7c5 JB |
477 | else |
478 | return Fcopy_sequence (Fsymbol_name (symbol)); | |
479 | } | |
480 | \f | |
481 | #ifdef HAVE_PTYS | |
d0d6b7c5 | 482 | |
875e6b94 KH |
483 | /* Open an available pty, returning a file descriptor. |
484 | Return -1 on failure. | |
485 | The file name of the terminal corresponding to the pty | |
486 | is left in the variable pty_name. */ | |
487 | ||
ff6daed3 | 488 | static int |
d3da34e0 | 489 | allocate_pty (void) |
d0d6b7c5 | 490 | { |
dfcf069d | 491 | register int c, i; |
d0d6b7c5 JB |
492 | int fd; |
493 | ||
494 | #ifdef PTY_ITERATION | |
495 | PTY_ITERATION | |
496 | #else | |
497 | for (c = FIRST_PTY_LETTER; c <= 'z'; c++) | |
498 | for (i = 0; i < 16; i++) | |
499 | #endif | |
500 | { | |
26d7389d | 501 | struct stat stb; /* Used in some PTY_OPEN. */ |
d0d6b7c5 JB |
502 | #ifdef PTY_NAME_SPRINTF |
503 | PTY_NAME_SPRINTF | |
d0d6b7c5 JB |
504 | #else |
505 | sprintf (pty_name, "/dev/pty%c%x", c, i); | |
d0d6b7c5 JB |
506 | #endif /* no PTY_NAME_SPRINTF */ |
507 | ||
4d7c105e RS |
508 | #ifdef PTY_OPEN |
509 | PTY_OPEN; | |
510 | #else /* no PTY_OPEN */ | |
34967d0f | 511 | { |
34967d0f SM |
512 | { /* Some systems name their pseudoterminals so that there are gaps in |
513 | the usual sequence - for example, on HP9000/S700 systems, there | |
514 | are no pseudoterminals with names ending in 'f'. So we wait for | |
515 | three failures in a row before deciding that we've reached the | |
516 | end of the ptys. */ | |
517 | int failed_count = 0; | |
f3d9532b | 518 | |
34967d0f SM |
519 | if (stat (pty_name, &stb) < 0) |
520 | { | |
521 | failed_count++; | |
522 | if (failed_count >= 3) | |
523 | return -1; | |
524 | } | |
525 | else | |
526 | failed_count = 0; | |
32676c08 | 527 | } |
34967d0f SM |
528 | # ifdef O_NONBLOCK |
529 | fd = emacs_open (pty_name, O_RDWR | O_NONBLOCK, 0); | |
530 | # else | |
531 | fd = emacs_open (pty_name, O_RDWR | O_NDELAY, 0); | |
532 | # endif | |
34967d0f | 533 | } |
4d7c105e | 534 | #endif /* no PTY_OPEN */ |
d0d6b7c5 JB |
535 | |
536 | if (fd >= 0) | |
537 | { | |
538 | /* check to make certain that both sides are available | |
539 | this avoids a nasty yet stupid bug in rlogins */ | |
540 | #ifdef PTY_TTY_NAME_SPRINTF | |
541 | PTY_TTY_NAME_SPRINTF | |
d0d6b7c5 | 542 | #else |
63136da6 | 543 | sprintf (pty_name, "/dev/tty%c%x", c, i); |
d0d6b7c5 | 544 | #endif /* no PTY_TTY_NAME_SPRINTF */ |
d0d6b7c5 JB |
545 | if (access (pty_name, 6) != 0) |
546 | { | |
68c45bf0 | 547 | emacs_close (fd); |
132d0475 | 548 | # ifndef __sgi |
d0d6b7c5 | 549 | continue; |
34967d0f | 550 | # else |
d0d6b7c5 | 551 | return -1; |
132d0475 | 552 | # endif /* __sgi */ |
d0d6b7c5 | 553 | } |
d0d6b7c5 JB |
554 | setup_pty (fd); |
555 | return fd; | |
556 | } | |
557 | } | |
558 | return -1; | |
559 | } | |
560 | #endif /* HAVE_PTYS */ | |
561 | \f | |
ff6daed3 | 562 | static Lisp_Object |
d3da34e0 | 563 | make_process (Lisp_Object name) |
d0d6b7c5 JB |
564 | { |
565 | register Lisp_Object val, tem, name1; | |
566 | register struct Lisp_Process *p; | |
567 | char suffix[10]; | |
568 | register int i; | |
569 | ||
98423852 | 570 | p = allocate_process (); |
23d6bb9c | 571 | |
60f0fb11 SM |
572 | p->infd = -1; |
573 | p->outfd = -1; | |
574 | p->tick = 0; | |
575 | p->update_tick = 0; | |
6bfd98e7 | 576 | p->pid = 0; |
fd41ad98 | 577 | p->pty_flag = 0; |
6bfd98e7 | 578 | p->raw_status_new = 0; |
d0d6b7c5 JB |
579 | p->status = Qrun; |
580 | p->mark = Fmake_marker (); | |
847c048e | 581 | p->kill_without_query = 0; |
d0d6b7c5 | 582 | |
6b61353c | 583 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
584 | p->adaptive_read_buffering = 0; |
585 | p->read_output_delay = 0; | |
586 | p->read_output_skip = 0; | |
6b61353c KH |
587 | #endif |
588 | ||
8af55556 TZ |
589 | #ifdef HAVE_GNUTLS |
590 | p->gnutls_initstage = GNUTLS_STAGE_EMPTY; | |
591 | #endif | |
592 | ||
d0d6b7c5 JB |
593 | /* If name is already in use, modify it until it is unused. */ |
594 | ||
595 | name1 = name; | |
596 | for (i = 1; ; i++) | |
597 | { | |
598 | tem = Fget_process (name1); | |
599 | if (NILP (tem)) break; | |
600 | sprintf (suffix, "<%d>", i); | |
601 | name1 = concat2 (name, build_string (suffix)); | |
602 | } | |
603 | name = name1; | |
604 | p->name = name; | |
23d6bb9c | 605 | XSETPROCESS (val, p); |
d0d6b7c5 JB |
606 | Vprocess_alist = Fcons (Fcons (name, val), Vprocess_alist); |
607 | return val; | |
608 | } | |
609 | ||
ff6daed3 | 610 | static void |
d3da34e0 | 611 | remove_process (register Lisp_Object proc) |
d0d6b7c5 JB |
612 | { |
613 | register Lisp_Object pair; | |
614 | ||
615 | pair = Frassq (proc, Vprocess_alist); | |
616 | Vprocess_alist = Fdelq (pair, Vprocess_alist); | |
d0d6b7c5 JB |
617 | |
618 | deactivate_process (proc); | |
619 | } | |
03f04413 | 620 | |
d0d6b7c5 JB |
621 | \f |
622 | DEFUN ("processp", Fprocessp, Sprocessp, 1, 1, 0, | |
fdb82f93 | 623 | doc: /* Return t if OBJECT is a process. */) |
5842a27b | 624 | (Lisp_Object object) |
d0d6b7c5 | 625 | { |
4ee3e309 | 626 | return PROCESSP (object) ? Qt : Qnil; |
d0d6b7c5 JB |
627 | } |
628 | ||
629 | DEFUN ("get-process", Fget_process, Sget_process, 1, 1, 0, | |
fdb82f93 | 630 | doc: /* Return the process named NAME, or nil if there is none. */) |
5842a27b | 631 | (register Lisp_Object name) |
d0d6b7c5 | 632 | { |
bcd69aea | 633 | if (PROCESSP (name)) |
d0d6b7c5 | 634 | return name; |
b7826503 | 635 | CHECK_STRING (name); |
d0d6b7c5 JB |
636 | return Fcdr (Fassoc (name, Vprocess_alist)); |
637 | } | |
638 | ||
ebb9e16f JB |
639 | /* This is how commands for the user decode process arguments. It |
640 | accepts a process, a process name, a buffer, a buffer name, or nil. | |
641 | Buffers denote the first process in the buffer, and nil denotes the | |
642 | current buffer. */ | |
d0d6b7c5 | 643 | |
77b221b1 | 644 | static Lisp_Object |
d3da34e0 | 645 | get_process (register Lisp_Object name) |
d0d6b7c5 | 646 | { |
1619761d KH |
647 | register Lisp_Object proc, obj; |
648 | if (STRINGP (name)) | |
649 | { | |
650 | obj = Fget_process (name); | |
651 | if (NILP (obj)) | |
652 | obj = Fget_buffer (name); | |
653 | if (NILP (obj)) | |
d5db4077 | 654 | error ("Process %s does not exist", SDATA (name)); |
1619761d KH |
655 | } |
656 | else if (NILP (name)) | |
657 | obj = Fcurrent_buffer (); | |
d0d6b7c5 | 658 | else |
1619761d KH |
659 | obj = name; |
660 | ||
661 | /* Now obj should be either a buffer object or a process object. | |
662 | */ | |
663 | if (BUFFERP (obj)) | |
d0d6b7c5 | 664 | { |
1619761d | 665 | proc = Fget_buffer_process (obj); |
d0d6b7c5 | 666 | if (NILP (proc)) |
d5db4077 | 667 | error ("Buffer %s has no process", SDATA (XBUFFER (obj)->name)); |
d0d6b7c5 | 668 | } |
d0d6b7c5 | 669 | else |
1619761d | 670 | { |
b7826503 | 671 | CHECK_PROCESS (obj); |
1619761d KH |
672 | proc = obj; |
673 | } | |
674 | return proc; | |
d0d6b7c5 JB |
675 | } |
676 | ||
a5cfdda8 KS |
677 | |
678 | #ifdef SIGCHLD | |
679 | /* Fdelete_process promises to immediately forget about the process, but in | |
680 | reality, Emacs needs to remember those processes until they have been | |
681 | treated by sigchld_handler; otherwise this handler would consider the | |
682 | process as being synchronous and say that the synchronous process is | |
683 | dead. */ | |
684 | static Lisp_Object deleted_pid_list; | |
685 | #endif | |
686 | ||
d0d6b7c5 | 687 | DEFUN ("delete-process", Fdelete_process, Sdelete_process, 1, 1, 0, |
fdb82f93 PJ |
688 | doc: /* Delete PROCESS: kill it and forget about it immediately. |
689 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
690 | nil, indicating the current buffer's process. */) | |
5842a27b | 691 | (register Lisp_Object process) |
d0d6b7c5 | 692 | { |
ff6daed3 KS |
693 | register struct Lisp_Process *p; |
694 | ||
4ee3e309 | 695 | process = get_process (process); |
ff6daed3 KS |
696 | p = XPROCESS (process); |
697 | ||
6bfd98e7 | 698 | p->raw_status_new = 0; |
d888760c | 699 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 700 | { |
ff6daed3 | 701 | p->status = Fcons (Qexit, Fcons (make_number (0), Qnil)); |
60f0fb11 | 702 | p->tick = ++process_tick; |
ff6daed3 | 703 | status_notify (p); |
e42bdf01 | 704 | redisplay_preserve_echo_area (13); |
d0d6b7c5 | 705 | } |
60f0fb11 | 706 | else if (p->infd >= 0) |
d0d6b7c5 | 707 | { |
a5cfdda8 KS |
708 | #ifdef SIGCHLD |
709 | Lisp_Object symbol; | |
d30fe779 EZ |
710 | /* Assignment to EMACS_INT stops GCC whining about limited range |
711 | of data type. */ | |
29ed4d51 | 712 | EMACS_INT pid = p->pid; |
a5cfdda8 KS |
713 | |
714 | /* No problem storing the pid here, as it is still in Vprocess_alist. */ | |
d30fe779 | 715 | deleted_pid_list = Fcons (make_fixnum_or_float (pid), |
a5cfdda8 KS |
716 | /* GC treated elements set to nil. */ |
717 | Fdelq (Qnil, deleted_pid_list)); | |
718 | /* If the process has already signaled, remove it from the list. */ | |
719 | if (p->raw_status_new) | |
720 | update_status (p); | |
721 | symbol = p->status; | |
722 | if (CONSP (p->status)) | |
723 | symbol = XCAR (p->status); | |
724 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit)) | |
29ed4d51 CY |
725 | deleted_pid_list |
726 | = Fdelete (make_fixnum_or_float (pid), deleted_pid_list); | |
a5cfdda8 KS |
727 | else |
728 | #endif | |
729 | { | |
730 | Fkill_process (process, Qnil); | |
731 | /* Do this now, since remove_process will make sigchld_handler do nothing. */ | |
732 | p->status | |
733 | = Fcons (Qsignal, Fcons (make_number (SIGKILL), Qnil)); | |
60f0fb11 | 734 | p->tick = ++process_tick; |
a5cfdda8 | 735 | status_notify (p); |
e42bdf01 | 736 | redisplay_preserve_echo_area (13); |
a5cfdda8 | 737 | } |
d0d6b7c5 | 738 | } |
4ee3e309 | 739 | remove_process (process); |
d0d6b7c5 JB |
740 | return Qnil; |
741 | } | |
742 | \f | |
743 | DEFUN ("process-status", Fprocess_status, Sprocess_status, 1, 1, 0, | |
fdb82f93 PJ |
744 | doc: /* Return the status of PROCESS. |
745 | The returned value is one of the following symbols: | |
746 | run -- for a process that is running. | |
747 | stop -- for a process stopped but continuable. | |
748 | exit -- for a process that has exited. | |
749 | signal -- for a process that has got a fatal signal. | |
750 | open -- for a network stream connection that is open. | |
e690ca94 | 751 | listen -- for a network stream server that is listening. |
fdb82f93 | 752 | closed -- for a network stream connection that is closed. |
e4984112 KS |
753 | connect -- when waiting for a non-blocking connection to complete. |
754 | failed -- when a non-blocking connection has failed. | |
fdb82f93 PJ |
755 | nil -- if arg is a process name and no such process exists. |
756 | PROCESS may be a process, a buffer, the name of a process, or | |
757 | nil, indicating the current buffer's process. */) | |
5842a27b | 758 | (register Lisp_Object process) |
d0d6b7c5 JB |
759 | { |
760 | register struct Lisp_Process *p; | |
761 | register Lisp_Object status; | |
343f4114 | 762 | |
4ee3e309 EN |
763 | if (STRINGP (process)) |
764 | process = Fget_process (process); | |
343f4114 | 765 | else |
4ee3e309 | 766 | process = get_process (process); |
343f4114 | 767 | |
4ee3e309 EN |
768 | if (NILP (process)) |
769 | return process; | |
343f4114 | 770 | |
4ee3e309 | 771 | p = XPROCESS (process); |
6bfd98e7 | 772 | if (p->raw_status_new) |
d0d6b7c5 JB |
773 | update_status (p); |
774 | status = p->status; | |
bcd69aea | 775 | if (CONSP (status)) |
70949dac | 776 | status = XCAR (status); |
d888760c | 777 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 778 | { |
e690ca94 | 779 | if (EQ (status, Qexit)) |
d0d6b7c5 | 780 | status = Qclosed; |
e690ca94 KS |
781 | else if (EQ (p->command, Qt)) |
782 | status = Qstop; | |
783 | else if (EQ (status, Qrun)) | |
784 | status = Qopen; | |
d0d6b7c5 JB |
785 | } |
786 | return status; | |
787 | } | |
788 | ||
789 | DEFUN ("process-exit-status", Fprocess_exit_status, Sprocess_exit_status, | |
790 | 1, 1, 0, | |
fdb82f93 PJ |
791 | doc: /* Return the exit status of PROCESS or the signal number that killed it. |
792 | If PROCESS has not yet exited or died, return 0. */) | |
5842a27b | 793 | (register Lisp_Object process) |
d0d6b7c5 | 794 | { |
b7826503 | 795 | CHECK_PROCESS (process); |
6bfd98e7 | 796 | if (XPROCESS (process)->raw_status_new) |
4ee3e309 EN |
797 | update_status (XPROCESS (process)); |
798 | if (CONSP (XPROCESS (process)->status)) | |
70949dac | 799 | return XCAR (XCDR (XPROCESS (process)->status)); |
d0d6b7c5 JB |
800 | return make_number (0); |
801 | } | |
802 | ||
803 | DEFUN ("process-id", Fprocess_id, Sprocess_id, 1, 1, 0, | |
fdb82f93 | 804 | doc: /* Return the process id of PROCESS. |
f3d9532b | 805 | This is the pid of the external process which PROCESS uses or talks to. |
fdb82f93 | 806 | For a network connection, this value is nil. */) |
5842a27b | 807 | (register Lisp_Object process) |
d0d6b7c5 | 808 | { |
d30fe779 EZ |
809 | /* Assignment to EMACS_INT stops GCC whining about limited range of |
810 | data type. */ | |
811 | EMACS_INT pid; | |
812 | ||
b7826503 | 813 | CHECK_PROCESS (process); |
d30fe779 EZ |
814 | pid = XPROCESS (process)->pid; |
815 | return (pid ? make_fixnum_or_float (pid) : Qnil); | |
d0d6b7c5 JB |
816 | } |
817 | ||
818 | DEFUN ("process-name", Fprocess_name, Sprocess_name, 1, 1, 0, | |
fdb82f93 PJ |
819 | doc: /* Return the name of PROCESS, as a string. |
820 | This is the name of the program invoked in PROCESS, | |
821 | possibly modified to make it unique among process names. */) | |
5842a27b | 822 | (register Lisp_Object process) |
d0d6b7c5 | 823 | { |
b7826503 | 824 | CHECK_PROCESS (process); |
4ee3e309 | 825 | return XPROCESS (process)->name; |
d0d6b7c5 JB |
826 | } |
827 | ||
828 | DEFUN ("process-command", Fprocess_command, Sprocess_command, 1, 1, 0, | |
fdb82f93 PJ |
829 | doc: /* Return the command that was executed to start PROCESS. |
830 | This is a list of strings, the first string being the program executed | |
831 | and the rest of the strings being the arguments given to it. | |
d888760c GM |
832 | For a network or serial process, this is nil (process is running) or t |
833 | \(process is stopped). */) | |
5842a27b | 834 | (register Lisp_Object process) |
d0d6b7c5 | 835 | { |
b7826503 | 836 | CHECK_PROCESS (process); |
4ee3e309 | 837 | return XPROCESS (process)->command; |
d0d6b7c5 JB |
838 | } |
839 | ||
3b9a3dfa | 840 | DEFUN ("process-tty-name", Fprocess_tty_name, Sprocess_tty_name, 1, 1, 0, |
fdb82f93 PJ |
841 | doc: /* Return the name of the terminal PROCESS uses, or nil if none. |
842 | This is the terminal that the process itself reads and writes on, | |
843 | not the name of the pty that Emacs uses to talk with that terminal. */) | |
5842a27b | 844 | (register Lisp_Object process) |
3b9a3dfa | 845 | { |
b7826503 | 846 | CHECK_PROCESS (process); |
4ee3e309 | 847 | return XPROCESS (process)->tty_name; |
3b9a3dfa RS |
848 | } |
849 | ||
d0d6b7c5 | 850 | DEFUN ("set-process-buffer", Fset_process_buffer, Sset_process_buffer, |
fdb82f93 PJ |
851 | 2, 2, 0, |
852 | doc: /* Set buffer associated with PROCESS to BUFFER (a buffer, or nil). */) | |
5842a27b | 853 | (register Lisp_Object process, Lisp_Object buffer) |
d0d6b7c5 | 854 | { |
e690ca94 KS |
855 | struct Lisp_Process *p; |
856 | ||
b7826503 | 857 | CHECK_PROCESS (process); |
d0d6b7c5 | 858 | if (!NILP (buffer)) |
b7826503 | 859 | CHECK_BUFFER (buffer); |
e690ca94 KS |
860 | p = XPROCESS (process); |
861 | p->buffer = buffer; | |
d888760c | 862 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
e690ca94 | 863 | p->childp = Fplist_put (p->childp, QCbuffer, buffer); |
03f04413 | 864 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
865 | return buffer; |
866 | } | |
867 | ||
868 | DEFUN ("process-buffer", Fprocess_buffer, Sprocess_buffer, | |
fdb82f93 PJ |
869 | 1, 1, 0, |
870 | doc: /* Return the buffer PROCESS is associated with. | |
871 | Output from PROCESS is inserted in this buffer unless PROCESS has a filter. */) | |
5842a27b | 872 | (register Lisp_Object process) |
d0d6b7c5 | 873 | { |
b7826503 | 874 | CHECK_PROCESS (process); |
4ee3e309 | 875 | return XPROCESS (process)->buffer; |
d0d6b7c5 JB |
876 | } |
877 | ||
878 | DEFUN ("process-mark", Fprocess_mark, Sprocess_mark, | |
fdb82f93 PJ |
879 | 1, 1, 0, |
880 | doc: /* Return the marker for the end of the last output from PROCESS. */) | |
5842a27b | 881 | (register Lisp_Object process) |
d0d6b7c5 | 882 | { |
b7826503 | 883 | CHECK_PROCESS (process); |
4ee3e309 | 884 | return XPROCESS (process)->mark; |
d0d6b7c5 JB |
885 | } |
886 | ||
887 | DEFUN ("set-process-filter", Fset_process_filter, Sset_process_filter, | |
fdb82f93 PJ |
888 | 2, 2, 0, |
889 | doc: /* Give PROCESS the filter function FILTER; nil means no filter. | |
7b82c3b6 | 890 | A value of t means stop accepting output from the process. |
3452df9e KS |
891 | |
892 | When a process has a filter, its buffer is not used for output. | |
893 | Instead, each time it does output, the entire string of output is | |
177c0ea7 | 894 | passed to the filter. |
3452df9e | 895 | |
fdb82f93 | 896 | The filter gets two arguments: the process and the string of output. |
3452df9e KS |
897 | The string argument is normally a multibyte string, except: |
898 | - if the process' input coding system is no-conversion or raw-text, | |
899 | it is a unibyte string (the non-converted input), or else | |
900 | - if `default-enable-multibyte-characters' is nil, it is a unibyte | |
901 | string (the result of converting the decoded input multibyte | |
902 | string to unibyte with `string-make-unibyte'). */) | |
5842a27b | 903 | (register Lisp_Object process, Lisp_Object filter) |
d0d6b7c5 | 904 | { |
471f86b9 | 905 | struct Lisp_Process *p; |
177c0ea7 | 906 | |
b7826503 | 907 | CHECK_PROCESS (process); |
471f86b9 GM |
908 | p = XPROCESS (process); |
909 | ||
910 | /* Don't signal an error if the process' input file descriptor | |
911 | is closed. This could make debugging Lisp more difficult, | |
912 | for example when doing something like | |
913 | ||
914 | (setq process (start-process ...)) | |
915 | (debug) | |
916 | (set-process-filter process ...) */ | |
177c0ea7 | 917 | |
60f0fb11 | 918 | if (p->infd >= 0) |
a69281ff | 919 | { |
e690ca94 | 920 | if (EQ (filter, Qt) && !EQ (p->status, Qlisten)) |
471f86b9 | 921 | { |
60f0fb11 SM |
922 | FD_CLR (p->infd, &input_wait_mask); |
923 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 924 | } |
e690ca94 | 925 | else if (EQ (p->filter, Qt) |
d888760c GM |
926 | /* Network or serial process not stopped: */ |
927 | && !EQ (p->command, Qt)) | |
471f86b9 | 928 | { |
60f0fb11 SM |
929 | FD_SET (p->infd, &input_wait_mask); |
930 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 931 | } |
a69281ff | 932 | } |
177c0ea7 | 933 | |
471f86b9 | 934 | p->filter = filter; |
d888760c | 935 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
e690ca94 | 936 | p->childp = Fplist_put (p->childp, QCfilter, filter); |
03f04413 | 937 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
938 | return filter; |
939 | } | |
940 | ||
941 | DEFUN ("process-filter", Fprocess_filter, Sprocess_filter, | |
fdb82f93 PJ |
942 | 1, 1, 0, |
943 | doc: /* Returns the filter function of PROCESS; nil if none. | |
944 | See `set-process-filter' for more info on filter functions. */) | |
5842a27b | 945 | (register Lisp_Object process) |
d0d6b7c5 | 946 | { |
b7826503 | 947 | CHECK_PROCESS (process); |
4ee3e309 | 948 | return XPROCESS (process)->filter; |
d0d6b7c5 JB |
949 | } |
950 | ||
951 | DEFUN ("set-process-sentinel", Fset_process_sentinel, Sset_process_sentinel, | |
fdb82f93 PJ |
952 | 2, 2, 0, |
953 | doc: /* Give PROCESS the sentinel SENTINEL; nil for none. | |
954 | The sentinel is called as a function when the process changes state. | |
955 | It gets two arguments: the process, and a string describing the change. */) | |
5842a27b | 956 | (register Lisp_Object process, Lisp_Object sentinel) |
d0d6b7c5 | 957 | { |
6b61353c KH |
958 | struct Lisp_Process *p; |
959 | ||
b7826503 | 960 | CHECK_PROCESS (process); |
6b61353c KH |
961 | p = XPROCESS (process); |
962 | ||
963 | p->sentinel = sentinel; | |
d888760c | 964 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
6b61353c | 965 | p->childp = Fplist_put (p->childp, QCsentinel, sentinel); |
d0d6b7c5 JB |
966 | return sentinel; |
967 | } | |
968 | ||
969 | DEFUN ("process-sentinel", Fprocess_sentinel, Sprocess_sentinel, | |
fdb82f93 PJ |
970 | 1, 1, 0, |
971 | doc: /* Return the sentinel of PROCESS; nil if none. | |
972 | See `set-process-sentinel' for more info on sentinels. */) | |
5842a27b | 973 | (register Lisp_Object process) |
d0d6b7c5 | 974 | { |
b7826503 | 975 | CHECK_PROCESS (process); |
4ee3e309 | 976 | return XPROCESS (process)->sentinel; |
d0d6b7c5 JB |
977 | } |
978 | ||
396df322 | 979 | DEFUN ("set-process-window-size", Fset_process_window_size, |
fdb82f93 PJ |
980 | Sset_process_window_size, 3, 3, 0, |
981 | doc: /* Tell PROCESS that it has logical window size HEIGHT and WIDTH. */) | |
5842a27b | 982 | (register Lisp_Object process, Lisp_Object height, Lisp_Object width) |
396df322 | 983 | { |
b7826503 PJ |
984 | CHECK_PROCESS (process); |
985 | CHECK_NATNUM (height); | |
986 | CHECK_NATNUM (width); | |
177c0ea7 | 987 | |
60f0fb11 SM |
988 | if (XPROCESS (process)->infd < 0 |
989 | || set_window_size (XPROCESS (process)->infd, | |
471f86b9 | 990 | XINT (height), XINT (width)) <= 0) |
396df322 RS |
991 | return Qnil; |
992 | else | |
993 | return Qt; | |
994 | } | |
995 | ||
52a1b894 | 996 | DEFUN ("set-process-inherit-coding-system-flag", |
fdb82f93 PJ |
997 | Fset_process_inherit_coding_system_flag, |
998 | Sset_process_inherit_coding_system_flag, 2, 2, 0, | |
999 | doc: /* Determine whether buffer of PROCESS will inherit coding-system. | |
1000 | If the second argument FLAG is non-nil, then the variable | |
1001 | `buffer-file-coding-system' of the buffer associated with PROCESS | |
1002 | will be bound to the value of the coding system used to decode | |
1003 | the process output. | |
1004 | ||
1005 | This is useful when the coding system specified for the process buffer | |
1006 | leaves either the character code conversion or the end-of-line conversion | |
1007 | unspecified, or if the coding system used to decode the process output | |
1008 | is more appropriate for saving the process buffer. | |
1009 | ||
1010 | Binding the variable `inherit-process-coding-system' to non-nil before | |
1011 | starting the process is an alternative way of setting the inherit flag | |
1012 | for the process which will run. */) | |
5842a27b | 1013 | (register Lisp_Object process, Lisp_Object flag) |
52a1b894 | 1014 | { |
b7826503 | 1015 | CHECK_PROCESS (process); |
60f0fb11 | 1016 | XPROCESS (process)->inherit_coding_system_flag = !NILP (flag); |
52a1b894 EZ |
1017 | return flag; |
1018 | } | |
1019 | ||
e690ca94 KS |
1020 | DEFUN ("set-process-query-on-exit-flag", |
1021 | Fset_process_query_on_exit_flag, Sset_process_query_on_exit_flag, | |
1022 | 2, 2, 0, | |
1023 | doc: /* Specify if query is needed for PROCESS when Emacs is exited. | |
f3d9532b | 1024 | If the second argument FLAG is non-nil, Emacs will query the user before |
10be7e0d | 1025 | exiting or killing a buffer if PROCESS is running. */) |
5842a27b | 1026 | (register Lisp_Object process, Lisp_Object flag) |
d0d6b7c5 | 1027 | { |
b7826503 | 1028 | CHECK_PROCESS (process); |
60f0fb11 | 1029 | XPROCESS (process)->kill_without_query = NILP (flag); |
e690ca94 | 1030 | return flag; |
d0d6b7c5 | 1031 | } |
312c9964 | 1032 | |
e690ca94 KS |
1033 | DEFUN ("process-query-on-exit-flag", |
1034 | Fprocess_query_on_exit_flag, Sprocess_query_on_exit_flag, | |
fdb82f93 | 1035 | 1, 1, 0, |
f3d9532b | 1036 | doc: /* Return the current value of query-on-exit flag for PROCESS. */) |
5842a27b | 1037 | (register Lisp_Object process) |
de282a05 | 1038 | { |
b7826503 | 1039 | CHECK_PROCESS (process); |
60f0fb11 | 1040 | return (XPROCESS (process)->kill_without_query ? Qnil : Qt); |
e690ca94 KS |
1041 | } |
1042 | ||
1043 | #ifdef DATAGRAM_SOCKETS | |
d3da34e0 | 1044 | Lisp_Object Fprocess_datagram_address (Lisp_Object process); |
e690ca94 KS |
1045 | #endif |
1046 | ||
1047 | DEFUN ("process-contact", Fprocess_contact, Sprocess_contact, | |
1048 | 1, 2, 0, | |
1049 | doc: /* Return the contact info of PROCESS; t for a real child. | |
d888760c GM |
1050 | For a network or serial connection, the value depends on the optional |
1051 | KEY arg. If KEY is nil, value is a cons cell of the form (HOST | |
1052 | SERVICE) for a network connection or (PORT SPEED) for a serial | |
1053 | connection. If KEY is t, the complete contact information for the | |
1054 | connection is returned, else the specific value for the keyword KEY is | |
1055 | returned. See `make-network-process' or `make-serial-process' for a | |
1056 | list of keywords. */) | |
5842a27b | 1057 | (register Lisp_Object process, Lisp_Object key) |
e690ca94 KS |
1058 | { |
1059 | Lisp_Object contact; | |
1060 | ||
1061 | CHECK_PROCESS (process); | |
1062 | contact = XPROCESS (process)->childp; | |
1063 | ||
1064 | #ifdef DATAGRAM_SOCKETS | |
1065 | if (DATAGRAM_CONN_P (process) | |
1066 | && (EQ (key, Qt) || EQ (key, QCremote))) | |
177c0ea7 | 1067 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
1068 | Fprocess_datagram_address (process)); |
1069 | #endif | |
1070 | ||
d888760c | 1071 | if ((!NETCONN_P (process) && !SERIALCONN_P (process)) || EQ (key, Qt)) |
e690ca94 | 1072 | return contact; |
d888760c | 1073 | if (NILP (key) && NETCONN_P (process)) |
e690ca94 KS |
1074 | return Fcons (Fplist_get (contact, QChost), |
1075 | Fcons (Fplist_get (contact, QCservice), Qnil)); | |
d888760c GM |
1076 | if (NILP (key) && SERIALCONN_P (process)) |
1077 | return Fcons (Fplist_get (contact, QCport), | |
1078 | Fcons (Fplist_get (contact, QCspeed), Qnil)); | |
e690ca94 | 1079 | return Fplist_get (contact, key); |
de282a05 RS |
1080 | } |
1081 | ||
faa7db08 KS |
1082 | DEFUN ("process-plist", Fprocess_plist, Sprocess_plist, |
1083 | 1, 1, 0, | |
1084 | doc: /* Return the plist of PROCESS. */) | |
5842a27b | 1085 | (register Lisp_Object process) |
365aee82 | 1086 | { |
ac4a7584 | 1087 | CHECK_PROCESS (process); |
faa7db08 | 1088 | return XPROCESS (process)->plist; |
ac4a7584 | 1089 | } |
365aee82 | 1090 | |
faa7db08 KS |
1091 | DEFUN ("set-process-plist", Fset_process_plist, Sset_process_plist, |
1092 | 2, 2, 0, | |
26a086c6 | 1093 | doc: /* Replace the plist of PROCESS with PLIST. Returns PLIST. */) |
5842a27b | 1094 | (register Lisp_Object process, Lisp_Object plist) |
ac4a7584 | 1095 | { |
365aee82 | 1096 | CHECK_PROCESS (process); |
faa7db08 | 1097 | CHECK_LIST (plist); |
365aee82 | 1098 | |
faa7db08 | 1099 | XPROCESS (process)->plist = plist; |
26a086c6 | 1100 | return plist; |
365aee82 KS |
1101 | } |
1102 | ||
312c9964 RS |
1103 | #if 0 /* Turned off because we don't currently record this info |
1104 | in the process. Perhaps add it. */ | |
1105 | DEFUN ("process-connection", Fprocess_connection, Sprocess_connection, 1, 1, 0, | |
fdb82f93 PJ |
1106 | doc: /* Return the connection type of PROCESS. |
1107 | The value is nil for a pipe, t or `pty' for a pty, or `stream' for | |
1108 | a socket connection. */) | |
5842a27b | 1109 | (Lisp_Object process) |
312c9964 RS |
1110 | { |
1111 | return XPROCESS (process)->type; | |
1112 | } | |
1113 | #endif | |
2a7bb882 | 1114 | |
d888760c GM |
1115 | DEFUN ("process-type", Fprocess_type, Sprocess_type, 1, 1, 0, |
1116 | doc: /* Return the connection type of PROCESS. | |
1117 | The value is either the symbol `real', `network', or `serial'. | |
1118 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
1119 | nil, indicating the current buffer's process. */) | |
5842a27b | 1120 | (Lisp_Object process) |
d888760c GM |
1121 | { |
1122 | Lisp_Object proc; | |
1123 | proc = get_process (process); | |
1124 | return XPROCESS (proc)->type; | |
1125 | } | |
991234f0 | 1126 | |
991234f0 | 1127 | DEFUN ("format-network-address", Fformat_network_address, Sformat_network_address, |
0dccee41 | 1128 | 1, 2, 0, |
991234f0 | 1129 | doc: /* Convert network ADDRESS from internal format to a string. |
e1652a86 KS |
1130 | A 4 or 5 element vector represents an IPv4 address (with port number). |
1131 | An 8 or 9 element vector represents an IPv6 address (with port number). | |
0dccee41 | 1132 | If optional second argument OMIT-PORT is non-nil, don't include a port |
e1652a86 KS |
1133 | number in the string, even when present in ADDRESS. |
1134 | Returns nil if format of ADDRESS is invalid. */) | |
5842a27b | 1135 | (Lisp_Object address, Lisp_Object omit_port) |
991234f0 | 1136 | { |
991234f0 KS |
1137 | if (NILP (address)) |
1138 | return Qnil; | |
1139 | ||
1140 | if (STRINGP (address)) /* AF_LOCAL */ | |
1141 | return address; | |
1142 | ||
e1652a86 | 1143 | if (VECTORP (address)) /* AF_INET or AF_INET6 */ |
991234f0 KS |
1144 | { |
1145 | register struct Lisp_Vector *p = XVECTOR (address); | |
ded83665 | 1146 | Lisp_Object args[10]; |
0dccee41 | 1147 | int nargs, i; |
991234f0 | 1148 | |
e1652a86 | 1149 | if (p->size == 4 || (p->size == 5 && !NILP (omit_port))) |
0dccee41 KS |
1150 | { |
1151 | args[0] = build_string ("%d.%d.%d.%d"); | |
1152 | nargs = 4; | |
1153 | } | |
1154 | else if (p->size == 5) | |
1155 | { | |
1156 | args[0] = build_string ("%d.%d.%d.%d:%d"); | |
1157 | nargs = 5; | |
1158 | } | |
e1652a86 KS |
1159 | else if (p->size == 8 || (p->size == 9 && !NILP (omit_port))) |
1160 | { | |
1161 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
1162 | nargs = 8; | |
1163 | } | |
1164 | else if (p->size == 9) | |
1165 | { | |
1166 | args[0] = build_string ("[%x:%x:%x:%x:%x:%x:%x:%x]:%d"); | |
1167 | nargs = 9; | |
1168 | } | |
0dccee41 | 1169 | else |
991234f0 KS |
1170 | return Qnil; |
1171 | ||
0dccee41 | 1172 | for (i = 0; i < nargs; i++) |
cbf23adb JB |
1173 | { |
1174 | EMACS_INT element = XINT (p->contents[i]); | |
1175 | ||
1176 | if (element < 0 || element > 65535) | |
1177 | return Qnil; | |
1178 | ||
1179 | if (nargs <= 5 /* IPv4 */ | |
1180 | && i < 4 /* host, not port */ | |
1181 | && element > 255) | |
1182 | return Qnil; | |
1183 | ||
1184 | args[i+1] = p->contents[i]; | |
1185 | } | |
1186 | ||
0dccee41 | 1187 | return Fformat (nargs+1, args); |
991234f0 KS |
1188 | } |
1189 | ||
1190 | if (CONSP (address)) | |
1191 | { | |
1192 | Lisp_Object args[2]; | |
1193 | args[0] = build_string ("<Family %d>"); | |
8d2ff840 | 1194 | args[1] = Fcar (address); |
991234f0 | 1195 | return Fformat (2, args); |
991234f0 KS |
1196 | } |
1197 | ||
1198 | return Qnil; | |
1199 | } | |
d0d6b7c5 | 1200 | \f |
ff6daed3 | 1201 | static Lisp_Object |
d3da34e0 | 1202 | list_processes_1 (Lisp_Object query_only) |
d0d6b7c5 JB |
1203 | { |
1204 | register Lisp_Object tail, tem; | |
1205 | Lisp_Object proc, minspace, tem1; | |
d0d6b7c5 | 1206 | register struct Lisp_Process *p; |
e690ca94 KS |
1207 | char tembuf[300]; |
1208 | int w_proc, w_buffer, w_tty; | |
1eed3bdc | 1209 | int exited = 0; |
e690ca94 KS |
1210 | Lisp_Object i_status, i_buffer, i_tty, i_command; |
1211 | ||
1212 | w_proc = 4; /* Proc */ | |
1213 | w_buffer = 6; /* Buffer */ | |
1214 | w_tty = 0; /* Omit if no ttys */ | |
1215 | ||
99784d63 | 1216 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
e690ca94 KS |
1217 | { |
1218 | int i; | |
1219 | ||
99784d63 | 1220 | proc = Fcdr (XCAR (tail)); |
e690ca94 | 1221 | p = XPROCESS (proc); |
d888760c | 1222 | if (NILP (p->type)) |
e690ca94 | 1223 | continue; |
60f0fb11 | 1224 | if (!NILP (query_only) && p->kill_without_query) |
e690ca94 KS |
1225 | continue; |
1226 | if (STRINGP (p->name) | |
d5db4077 | 1227 | && ( i = SCHARS (p->name), (i > w_proc))) |
e690ca94 KS |
1228 | w_proc = i; |
1229 | if (!NILP (p->buffer)) | |
1230 | { | |
e69c4cae SM |
1231 | if (NILP (XBUFFER (p->buffer)->name)) |
1232 | { | |
1233 | if (w_buffer < 8) | |
1234 | w_buffer = 8; /* (Killed) */ | |
1235 | } | |
d5db4077 | 1236 | else if ((i = SCHARS (XBUFFER (p->buffer)->name), (i > w_buffer))) |
e690ca94 KS |
1237 | w_buffer = i; |
1238 | } | |
1239 | if (STRINGP (p->tty_name) | |
d5db4077 | 1240 | && (i = SCHARS (p->tty_name), (i > w_tty))) |
e690ca94 KS |
1241 | w_tty = i; |
1242 | } | |
1243 | ||
1244 | XSETFASTINT (i_status, w_proc + 1); | |
1245 | XSETFASTINT (i_buffer, XFASTINT (i_status) + 9); | |
1246 | if (w_tty) | |
1247 | { | |
1248 | XSETFASTINT (i_tty, XFASTINT (i_buffer) + w_buffer + 1); | |
d3c0009d AS |
1249 | XSETFASTINT (i_command, XFASTINT (i_tty) + w_tty + 1); |
1250 | } | |
1251 | else | |
1252 | { | |
e690ca94 KS |
1253 | i_tty = Qnil; |
1254 | XSETFASTINT (i_command, XFASTINT (i_buffer) + w_buffer + 1); | |
1255 | } | |
d0d6b7c5 | 1256 | |
22719df2 | 1257 | XSETFASTINT (minspace, 1); |
d0d6b7c5 JB |
1258 | |
1259 | set_buffer_internal (XBUFFER (Vstandard_output)); | |
ec2258fa | 1260 | current_buffer->undo_list = Qt; |
d0d6b7c5 JB |
1261 | |
1262 | current_buffer->truncate_lines = Qt; | |
1263 | ||
e690ca94 KS |
1264 | write_string ("Proc", -1); |
1265 | Findent_to (i_status, minspace); write_string ("Status", -1); | |
1266 | Findent_to (i_buffer, minspace); write_string ("Buffer", -1); | |
1267 | if (!NILP (i_tty)) | |
1268 | { | |
1269 | Findent_to (i_tty, minspace); write_string ("Tty", -1); | |
1270 | } | |
1271 | Findent_to (i_command, minspace); write_string ("Command", -1); | |
1272 | write_string ("\n", -1); | |
1273 | ||
1274 | write_string ("----", -1); | |
1275 | Findent_to (i_status, minspace); write_string ("------", -1); | |
1276 | Findent_to (i_buffer, minspace); write_string ("------", -1); | |
1277 | if (!NILP (i_tty)) | |
1278 | { | |
1279 | Findent_to (i_tty, minspace); write_string ("---", -1); | |
1280 | } | |
1281 | Findent_to (i_command, minspace); write_string ("-------", -1); | |
1282 | write_string ("\n", -1); | |
d0d6b7c5 | 1283 | |
99784d63 | 1284 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 JB |
1285 | { |
1286 | Lisp_Object symbol; | |
1287 | ||
99784d63 | 1288 | proc = Fcdr (XCAR (tail)); |
d0d6b7c5 | 1289 | p = XPROCESS (proc); |
d888760c | 1290 | if (NILP (p->type)) |
d0d6b7c5 | 1291 | continue; |
60f0fb11 | 1292 | if (!NILP (query_only) && p->kill_without_query) |
e690ca94 | 1293 | continue; |
d0d6b7c5 JB |
1294 | |
1295 | Finsert (1, &p->name); | |
e690ca94 | 1296 | Findent_to (i_status, minspace); |
d0d6b7c5 | 1297 | |
6bfd98e7 | 1298 | if (p->raw_status_new) |
d0d6b7c5 JB |
1299 | update_status (p); |
1300 | symbol = p->status; | |
bcd69aea | 1301 | if (CONSP (p->status)) |
70949dac | 1302 | symbol = XCAR (p->status); |
d0d6b7c5 | 1303 | |
d0d6b7c5 JB |
1304 | if (EQ (symbol, Qsignal)) |
1305 | { | |
1306 | Lisp_Object tem; | |
1307 | tem = Fcar (Fcdr (p->status)); | |
7c2fb837 | 1308 | Fprinc (symbol, Qnil); |
d0d6b7c5 | 1309 | } |
d888760c | 1310 | else if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 1311 | { |
e690ca94 | 1312 | if (EQ (symbol, Qexit)) |
d0d6b7c5 | 1313 | write_string ("closed", -1); |
e690ca94 KS |
1314 | else if (EQ (p->command, Qt)) |
1315 | write_string ("stopped", -1); | |
1316 | else if (EQ (symbol, Qrun)) | |
1317 | write_string ("open", -1); | |
d0d6b7c5 JB |
1318 | else |
1319 | Fprinc (symbol, Qnil); | |
1320 | } | |
d888760c GM |
1321 | else if (SERIALCONN1_P (p)) |
1322 | { | |
1323 | write_string ("running", -1); | |
1324 | } | |
d0d6b7c5 JB |
1325 | else |
1326 | Fprinc (symbol, Qnil); | |
1327 | ||
1328 | if (EQ (symbol, Qexit)) | |
1329 | { | |
1330 | Lisp_Object tem; | |
1331 | tem = Fcar (Fcdr (p->status)); | |
1332 | if (XFASTINT (tem)) | |
1333 | { | |
3162bafa | 1334 | sprintf (tembuf, " %d", (int) XFASTINT (tem)); |
d0d6b7c5 JB |
1335 | write_string (tembuf, -1); |
1336 | } | |
1337 | } | |
1338 | ||
1eed3bdc KS |
1339 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit) || EQ (symbol, Qclosed)) |
1340 | exited++; | |
d0d6b7c5 | 1341 | |
e690ca94 | 1342 | Findent_to (i_buffer, minspace); |
d0d6b7c5 JB |
1343 | if (NILP (p->buffer)) |
1344 | insert_string ("(none)"); | |
1345 | else if (NILP (XBUFFER (p->buffer)->name)) | |
1346 | insert_string ("(Killed)"); | |
1347 | else | |
1348 | Finsert (1, &XBUFFER (p->buffer)->name); | |
1349 | ||
e690ca94 KS |
1350 | if (!NILP (i_tty)) |
1351 | { | |
1352 | Findent_to (i_tty, minspace); | |
1353 | if (STRINGP (p->tty_name)) | |
1354 | Finsert (1, &p->tty_name); | |
1355 | } | |
a9fde32e | 1356 | |
e690ca94 | 1357 | Findent_to (i_command, minspace); |
a9fde32e | 1358 | |
e690ca94 KS |
1359 | if (EQ (p->status, Qlisten)) |
1360 | { | |
1361 | Lisp_Object port = Fplist_get (p->childp, QCservice); | |
1362 | if (INTEGERP (port)) | |
1363 | port = Fnumber_to_string (port); | |
991234f0 | 1364 | if (NILP (port)) |
0dccee41 | 1365 | port = Fformat_network_address (Fplist_get (p->childp, QClocal), Qnil); |
e690ca94 | 1366 | sprintf (tembuf, "(network %s server on %s)\n", |
60f0fb11 | 1367 | (DATAGRAM_CHAN_P (p->infd) ? "datagram" : "stream"), |
991234f0 | 1368 | (STRINGP (port) ? (char *)SDATA (port) : "?")); |
e690ca94 KS |
1369 | insert_string (tembuf); |
1370 | } | |
1371 | else if (NETCONN1_P (p)) | |
63136da6 | 1372 | { |
e690ca94 KS |
1373 | /* For a local socket, there is no host name, |
1374 | so display service instead. */ | |
1375 | Lisp_Object host = Fplist_get (p->childp, QChost); | |
1376 | if (!STRINGP (host)) | |
1377 | { | |
1378 | host = Fplist_get (p->childp, QCservice); | |
1379 | if (INTEGERP (host)) | |
1380 | host = Fnumber_to_string (host); | |
1381 | } | |
991234f0 | 1382 | if (NILP (host)) |
0dccee41 | 1383 | host = Fformat_network_address (Fplist_get (p->childp, QCremote), Qnil); |
e690ca94 | 1384 | sprintf (tembuf, "(network %s connection to %s)\n", |
60f0fb11 | 1385 | (DATAGRAM_CHAN_P (p->infd) ? "datagram" : "stream"), |
991234f0 | 1386 | (STRINGP (host) ? (char *)SDATA (host) : "?")); |
d0d6b7c5 | 1387 | insert_string (tembuf); |
63136da6 | 1388 | } |
d888760c GM |
1389 | else if (SERIALCONN1_P (p)) |
1390 | { | |
1391 | Lisp_Object port = Fplist_get (p->childp, QCport); | |
1392 | Lisp_Object speed = Fplist_get (p->childp, QCspeed); | |
1393 | insert_string ("(serial port "); | |
1394 | if (STRINGP (port)) | |
1395 | insert_string (SDATA (port)); | |
1396 | else | |
1397 | insert_string ("?"); | |
1398 | if (INTEGERP (speed)) | |
1399 | { | |
fa24b114 | 1400 | sprintf (tembuf, " at %ld b/s", (long) XINT (speed)); |
d888760c GM |
1401 | insert_string (tembuf); |
1402 | } | |
1403 | insert_string (")\n"); | |
1404 | } | |
177c0ea7 | 1405 | else |
d0d6b7c5 JB |
1406 | { |
1407 | tem = p->command; | |
1408 | while (1) | |
1409 | { | |
1410 | tem1 = Fcar (tem); | |
850d0752 NR |
1411 | if (NILP (tem1)) |
1412 | break; | |
d0d6b7c5 JB |
1413 | Finsert (1, &tem1); |
1414 | tem = Fcdr (tem); | |
1415 | if (NILP (tem)) | |
1416 | break; | |
1417 | insert_string (" "); | |
1418 | } | |
1419 | insert_string ("\n"); | |
1420 | } | |
1421 | } | |
1eed3bdc | 1422 | if (exited) |
e42bdf01 CY |
1423 | { |
1424 | status_notify (NULL); | |
1425 | redisplay_preserve_echo_area (13); | |
1426 | } | |
d0d6b7c5 JB |
1427 | return Qnil; |
1428 | } | |
1429 | ||
e690ca94 | 1430 | DEFUN ("list-processes", Flist_processes, Slist_processes, 0, 1, "P", |
fdb82f93 | 1431 | doc: /* Display a list of all processes. |
e690ca94 KS |
1432 | If optional argument QUERY-ONLY is non-nil, only processes with |
1433 | the query-on-exit flag set will be listed. | |
fdb82f93 PJ |
1434 | Any process listed as exited or signaled is actually eliminated |
1435 | after the listing is made. */) | |
5842a27b | 1436 | (Lisp_Object query_only) |
d0d6b7c5 JB |
1437 | { |
1438 | internal_with_output_to_temp_buffer ("*Process List*", | |
e690ca94 | 1439 | list_processes_1, query_only); |
d0d6b7c5 JB |
1440 | return Qnil; |
1441 | } | |
1442 | ||
1443 | DEFUN ("process-list", Fprocess_list, Sprocess_list, 0, 0, 0, | |
fdb82f93 | 1444 | doc: /* Return a list of all processes. */) |
5842a27b | 1445 | (void) |
d0d6b7c5 JB |
1446 | { |
1447 | return Fmapcar (Qcdr, Vprocess_alist); | |
1448 | } | |
1449 | \f | |
b0310da4 JB |
1450 | /* Starting asynchronous inferior processes. */ |
1451 | ||
d3da34e0 | 1452 | static Lisp_Object start_process_unwind (Lisp_Object proc); |
b0310da4 | 1453 | |
d0d6b7c5 | 1454 | DEFUN ("start-process", Fstart_process, Sstart_process, 3, MANY, 0, |
fdb82f93 PJ |
1455 | doc: /* Start a program in a subprocess. Return the process object for it. |
1456 | NAME is name for process. It is modified if necessary to make it unique. | |
553acde5 | 1457 | BUFFER is the buffer (or buffer name) to associate with the process. |
4b6c5eee EZ |
1458 | |
1459 | Process output (both standard output and standard error streams) goes | |
1460 | at end of BUFFER, unless you specify an output stream or filter | |
1461 | function to handle the output. BUFFER may also be nil, meaning that | |
16fdeb17 RS |
1462 | this process is not associated with any buffer. |
1463 | ||
850d0752 NR |
1464 | PROGRAM is the program file name. It is searched for in PATH. If |
1465 | nil, just associate a pty with the buffer. Remaining arguments are | |
1466 | strings to give program as arguments. | |
320aebc9 | 1467 | |
4b6c5eee EZ |
1468 | If you want to separate standard output from standard error, invoke |
1469 | the command through a shell and redirect one of them using the shell | |
1470 | syntax. | |
320aebc9 | 1471 | |
3ecdf100 | 1472 | usage: (start-process NAME BUFFER PROGRAM &rest PROGRAM-ARGS) */) |
5842a27b | 1473 | (int nargs, register Lisp_Object *args) |
d0d6b7c5 | 1474 | { |
1e30af70 | 1475 | Lisp_Object buffer, name, program, proc, current_dir, tem; |
d0d6b7c5 | 1476 | register unsigned char **new_argv; |
d0d6b7c5 | 1477 | register int i; |
aed13378 | 1478 | int count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
1479 | |
1480 | buffer = args[1]; | |
1481 | if (!NILP (buffer)) | |
1482 | buffer = Fget_buffer_create (buffer); | |
1483 | ||
1e30af70 JB |
1484 | /* Make sure that the child will be able to chdir to the current |
1485 | buffer's current directory, or its unhandled equivalent. We | |
1486 | can't just have the child check for an error when it does the | |
1487 | chdir, since it's in a vfork. | |
1488 | ||
1489 | We have to GCPRO around this because Fexpand_file_name and | |
1490 | Funhandled_file_name_directory might call a file name handling | |
1491 | function. The argument list is protected by the caller, so all | |
1492 | we really have to worry about is buffer. */ | |
1493 | { | |
1494 | struct gcpro gcpro1, gcpro2; | |
1495 | ||
1496 | current_dir = current_buffer->directory; | |
1497 | ||
1498 | GCPRO2 (buffer, current_dir); | |
1499 | ||
ca319910 SM |
1500 | current_dir = Funhandled_file_name_directory (current_dir); |
1501 | if (NILP (current_dir)) | |
1502 | /* If the file name handler says that current_dir is unreachable, use | |
1503 | a sensible default. */ | |
1504 | current_dir = build_string ("~/"); | |
1505 | current_dir = expand_and_dir_to_file (current_dir, Qnil); | |
1e30af70 JB |
1506 | if (NILP (Ffile_accessible_directory_p (current_dir))) |
1507 | report_file_error ("Setting current directory", | |
1508 | Fcons (current_buffer->directory, Qnil)); | |
1509 | ||
1510 | UNGCPRO; | |
1511 | } | |
1512 | ||
d0d6b7c5 | 1513 | name = args[0]; |
b7826503 | 1514 | CHECK_STRING (name); |
d0d6b7c5 JB |
1515 | |
1516 | program = args[2]; | |
1517 | ||
850d0752 NR |
1518 | if (!NILP (program)) |
1519 | CHECK_STRING (program); | |
d0d6b7c5 | 1520 | |
d0d6b7c5 | 1521 | proc = make_process (name); |
b0310da4 JB |
1522 | /* If an error occurs and we can't start the process, we want to |
1523 | remove it from the process list. This means that each error | |
1524 | check in create_process doesn't need to call remove_process | |
1525 | itself; it's all taken care of here. */ | |
1526 | record_unwind_protect (start_process_unwind, proc); | |
d0d6b7c5 JB |
1527 | |
1528 | XPROCESS (proc)->childp = Qt; | |
faa7db08 | 1529 | XPROCESS (proc)->plist = Qnil; |
d888760c | 1530 | XPROCESS (proc)->type = Qreal; |
d0d6b7c5 JB |
1531 | XPROCESS (proc)->buffer = buffer; |
1532 | XPROCESS (proc)->sentinel = Qnil; | |
1533 | XPROCESS (proc)->filter = Qnil; | |
1534 | XPROCESS (proc)->command = Flist (nargs - 2, args + 2); | |
1535 | ||
8af55556 TZ |
1536 | #ifdef HAVE_GNUTLS |
1537 | /* AKA GNUTLS_INITSTAGE(proc). */ | |
1538 | XPROCESS (proc)->gnutls_initstage = GNUTLS_STAGE_EMPTY; | |
1539 | XPROCESS (proc)->gnutls_cred_type = Qnil; | |
1540 | #endif | |
1541 | ||
6b61353c | 1542 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
1543 | XPROCESS (proc)->adaptive_read_buffering |
1544 | = (NILP (Vprocess_adaptive_read_buffering) ? 0 | |
1545 | : EQ (Vprocess_adaptive_read_buffering, Qt) ? 1 : 2); | |
6b61353c KH |
1546 | #endif |
1547 | ||
7af71e17 | 1548 | /* Make the process marker point into the process buffer (if any). */ |
f523e0c3 | 1549 | if (BUFFERP (buffer)) |
d8a2934e RS |
1550 | set_marker_both (XPROCESS (proc)->mark, buffer, |
1551 | BUF_ZV (XBUFFER (buffer)), | |
1552 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
7af71e17 | 1553 | |
67918941 | 1554 | { |
d5d4ae71 KH |
1555 | /* Decide coding systems for communicating with the process. Here |
1556 | we don't setup the structure coding_system nor pay attention to | |
1557 | unibyte mode. They are done in create_process. */ | |
1558 | ||
67918941 RS |
1559 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ |
1560 | Lisp_Object coding_systems = Qt; | |
1561 | Lisp_Object val, *args2; | |
a4a37e65 | 1562 | struct gcpro gcpro1, gcpro2; |
67918941 | 1563 | |
d5d4ae71 KH |
1564 | val = Vcoding_system_for_read; |
1565 | if (NILP (val)) | |
67918941 RS |
1566 | { |
1567 | args2 = (Lisp_Object *) alloca ((nargs + 1) * sizeof *args2); | |
1568 | args2[0] = Qstart_process; | |
1569 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1570 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1571 | if (!NILP (program)) |
1572 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1573 | UNGCPRO; |
1574 | if (CONSP (coding_systems)) | |
70949dac | 1575 | val = XCAR (coding_systems); |
67918941 | 1576 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1577 | val = XCAR (Vdefault_process_coding_system); |
67918941 RS |
1578 | } |
1579 | XPROCESS (proc)->decode_coding_system = val; | |
1580 | ||
d5d4ae71 KH |
1581 | val = Vcoding_system_for_write; |
1582 | if (NILP (val)) | |
67918941 RS |
1583 | { |
1584 | if (EQ (coding_systems, Qt)) | |
1585 | { | |
1586 | args2 = (Lisp_Object *) alloca ((nargs + 1) * sizeof args2); | |
1587 | args2[0] = Qstart_process; | |
1588 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1589 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1590 | if (!NILP (program)) |
1591 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1592 | UNGCPRO; |
1593 | } | |
1594 | if (CONSP (coding_systems)) | |
70949dac | 1595 | val = XCDR (coding_systems); |
67918941 | 1596 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1597 | val = XCDR (Vdefault_process_coding_system); |
67918941 RS |
1598 | } |
1599 | XPROCESS (proc)->encode_coding_system = val; | |
1600 | } | |
0fa1789e | 1601 | |
a4a37e65 | 1602 | |
850d0752 NR |
1603 | XPROCESS (proc)->decoding_buf = make_uninit_string (0); |
1604 | XPROCESS (proc)->decoding_carryover = 0; | |
1605 | XPROCESS (proc)->encoding_buf = make_uninit_string (0); | |
ed30cf85 | 1606 | |
850d0752 NR |
1607 | XPROCESS (proc)->inherit_coding_system_flag |
1608 | = !(NILP (buffer) || !inherit_process_coding_system); | |
77bf07e1 | 1609 | |
850d0752 NR |
1610 | if (!NILP (program)) |
1611 | { | |
1612 | /* If program file name is not absolute, search our path for it. | |
1613 | Put the name we will really use in TEM. */ | |
1614 | if (!IS_DIRECTORY_SEP (SREF (program, 0)) | |
1615 | && !(SCHARS (program) > 1 | |
1616 | && IS_DEVICE_SEP (SREF (program, 1)))) | |
1617 | { | |
1618 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1619 | ||
1620 | tem = Qnil; | |
1621 | GCPRO4 (name, program, buffer, current_dir); | |
1622 | openp (Vexec_path, program, Vexec_suffixes, &tem, make_number (X_OK)); | |
1623 | UNGCPRO; | |
1624 | if (NILP (tem)) | |
1625 | report_file_error ("Searching for program", Fcons (program, Qnil)); | |
1626 | tem = Fexpand_file_name (tem, Qnil); | |
1627 | } | |
1628 | else | |
1629 | { | |
1630 | if (!NILP (Ffile_directory_p (program))) | |
1631 | error ("Specified program for new process is a directory"); | |
1632 | tem = program; | |
1633 | } | |
ed30cf85 | 1634 | |
850d0752 NR |
1635 | /* If program file name starts with /: for quoting a magic name, |
1636 | discard that. */ | |
1637 | if (SBYTES (tem) > 2 && SREF (tem, 0) == '/' | |
1638 | && SREF (tem, 1) == ':') | |
1639 | tem = Fsubstring (tem, make_number (2), Qnil); | |
77bf07e1 | 1640 | |
77bf07e1 | 1641 | { |
850d0752 NR |
1642 | struct gcpro gcpro1; |
1643 | GCPRO1 (tem); | |
a4a37e65 | 1644 | |
850d0752 NR |
1645 | /* Encode the file name and put it in NEW_ARGV. |
1646 | That's where the child will use it to execute the program. */ | |
1647 | tem = Fcons (ENCODE_FILE (tem), Qnil); | |
77bf07e1 | 1648 | |
850d0752 NR |
1649 | /* Here we encode arguments by the coding system used for sending |
1650 | data to the process. We don't support using different coding | |
1651 | systems for encoding arguments and for encoding data sent to the | |
1652 | process. */ | |
77bf07e1 | 1653 | |
850d0752 NR |
1654 | for (i = 3; i < nargs; i++) |
1655 | { | |
1656 | tem = Fcons (args[i], tem); | |
1657 | CHECK_STRING (XCAR (tem)); | |
1658 | if (STRING_MULTIBYTE (XCAR (tem))) | |
1659 | XSETCAR (tem, | |
1660 | code_convert_string_norecord | |
1661 | (XCAR (tem), XPROCESS (proc)->encode_coding_system, 1)); | |
1662 | } | |
a4a37e65 | 1663 | |
850d0752 NR |
1664 | UNGCPRO; |
1665 | } | |
0fa1789e | 1666 | |
850d0752 NR |
1667 | /* Now that everything is encoded we can collect the strings into |
1668 | NEW_ARGV. */ | |
1669 | new_argv = (unsigned char **) alloca ((nargs - 1) * sizeof (char *)); | |
1670 | new_argv[nargs - 2] = 0; | |
52a1b894 | 1671 | |
850d0752 NR |
1672 | for (i = nargs - 3; i >= 0; i--) |
1673 | { | |
1674 | new_argv[i] = SDATA (XCAR (tem)); | |
1675 | tem = XCDR (tem); | |
1676 | } | |
1677 | ||
1678 | create_process (proc, (char **) new_argv, current_dir); | |
1679 | } | |
1680 | else | |
1681 | create_pty (proc); | |
d0d6b7c5 | 1682 | |
b0310da4 | 1683 | return unbind_to (count, proc); |
d0d6b7c5 JB |
1684 | } |
1685 | ||
b0310da4 | 1686 | /* This function is the unwind_protect form for Fstart_process. If |
8e6208c5 | 1687 | PROC doesn't have its pid set, then we know someone has signaled |
b0310da4 JB |
1688 | an error and the process wasn't started successfully, so we should |
1689 | remove it from the process list. */ | |
1690 | static Lisp_Object | |
d3da34e0 | 1691 | start_process_unwind (Lisp_Object proc) |
b0310da4 | 1692 | { |
bcd69aea | 1693 | if (!PROCESSP (proc)) |
b0310da4 JB |
1694 | abort (); |
1695 | ||
1696 | /* Was PROC started successfully? */ | |
850d0752 | 1697 | if (XPROCESS (proc)->pid == -1) |
b0310da4 JB |
1698 | remove_process (proc); |
1699 | ||
1700 | return Qnil; | |
1701 | } | |
1702 | ||
ff6daed3 | 1703 | static void |
d3da34e0 | 1704 | create_process_1 (struct atimer *timer) |
d0d6b7c5 | 1705 | { |
30904ab7 | 1706 | /* Nothing to do. */ |
d0d6b7c5 JB |
1707 | } |
1708 | ||
30904ab7 | 1709 | |
6b53bb85 | 1710 | void |
d3da34e0 | 1711 | create_process (Lisp_Object process, char **new_argv, Lisp_Object current_dir) |
d0d6b7c5 | 1712 | { |
29ed4d51 CY |
1713 | int inchannel, outchannel; |
1714 | pid_t pid; | |
d0d6b7c5 | 1715 | int sv[2]; |
2c4df143 YM |
1716 | #if !defined (WINDOWSNT) && defined (FD_CLOEXEC) |
1717 | int wait_child_setup[2]; | |
1718 | #endif | |
0dc70c33 KH |
1719 | sigset_t procmask; |
1720 | sigset_t blocked; | |
1721 | struct sigaction sigint_action; | |
1722 | struct sigaction sigquit_action; | |
1723 | #ifdef AIX | |
1724 | struct sigaction sighup_action; | |
1725 | #endif | |
ecd1f654 KH |
1726 | /* Use volatile to protect variables from being clobbered by longjmp. */ |
1727 | volatile int forkin, forkout; | |
1728 | volatile int pty_flag = 0; | |
3ec68006 | 1729 | #ifndef USE_CRT_DLL |
d0d6b7c5 | 1730 | extern char **environ; |
3ec68006 | 1731 | #endif |
d0d6b7c5 | 1732 | |
d0d6b7c5 JB |
1733 | inchannel = outchannel = -1; |
1734 | ||
1735 | #ifdef HAVE_PTYS | |
fe45da4e | 1736 | if (!NILP (Vprocess_connection_type)) |
d0d6b7c5 JB |
1737 | outchannel = inchannel = allocate_pty (); |
1738 | ||
d0d6b7c5 JB |
1739 | if (inchannel >= 0) |
1740 | { | |
2af70a0c RS |
1741 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) |
1742 | /* On most USG systems it does not work to open the pty's tty here, | |
1743 | then close it and reopen it in the child. */ | |
d0d6b7c5 JB |
1744 | #ifdef O_NOCTTY |
1745 | /* Don't let this terminal become our controlling terminal | |
1746 | (in case we don't have one). */ | |
68c45bf0 | 1747 | forkout = forkin = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); |
d0d6b7c5 | 1748 | #else |
68c45bf0 | 1749 | forkout = forkin = emacs_open (pty_name, O_RDWR, 0); |
d0d6b7c5 JB |
1750 | #endif |
1751 | if (forkin < 0) | |
1752 | report_file_error ("Opening pty", Qnil); | |
1753 | #else | |
1754 | forkin = forkout = -1; | |
2af70a0c | 1755 | #endif /* not USG, or USG_SUBTTY_WORKS */ |
d0d6b7c5 JB |
1756 | pty_flag = 1; |
1757 | } | |
1758 | else | |
1759 | #endif /* HAVE_PTYS */ | |
d0d6b7c5 | 1760 | { |
fc14013c KH |
1761 | int tem; |
1762 | tem = pipe (sv); | |
1763 | if (tem < 0) | |
1764 | report_file_error ("Creating pipe", Qnil); | |
d0d6b7c5 JB |
1765 | inchannel = sv[0]; |
1766 | forkout = sv[1]; | |
fc14013c KH |
1767 | tem = pipe (sv); |
1768 | if (tem < 0) | |
1769 | { | |
68c45bf0 PE |
1770 | emacs_close (inchannel); |
1771 | emacs_close (forkout); | |
fc14013c KH |
1772 | report_file_error ("Creating pipe", Qnil); |
1773 | } | |
d0d6b7c5 JB |
1774 | outchannel = sv[1]; |
1775 | forkin = sv[0]; | |
1776 | } | |
d0d6b7c5 | 1777 | |
2c4df143 YM |
1778 | #if !defined (WINDOWSNT) && defined (FD_CLOEXEC) |
1779 | { | |
1780 | int tem; | |
1781 | ||
1782 | tem = pipe (wait_child_setup); | |
1783 | if (tem < 0) | |
1784 | report_file_error ("Creating pipe", Qnil); | |
1785 | tem = fcntl (wait_child_setup[1], F_GETFD, 0); | |
1786 | if (tem >= 0) | |
1787 | tem = fcntl (wait_child_setup[1], F_SETFD, tem | FD_CLOEXEC); | |
1788 | if (tem < 0) | |
1789 | { | |
1790 | emacs_close (wait_child_setup[0]); | |
1791 | emacs_close (wait_child_setup[1]); | |
1792 | report_file_error ("Setting file descriptor flags", Qnil); | |
1793 | } | |
1794 | } | |
1795 | #endif | |
1796 | ||
d0d6b7c5 JB |
1797 | #if 0 |
1798 | /* Replaced by close_process_descs */ | |
1799 | set_exclusive_use (inchannel); | |
1800 | set_exclusive_use (outchannel); | |
1801 | #endif | |
1802 | ||
d0d6b7c5 JB |
1803 | #ifdef O_NONBLOCK |
1804 | fcntl (inchannel, F_SETFL, O_NONBLOCK); | |
03832893 | 1805 | fcntl (outchannel, F_SETFL, O_NONBLOCK); |
d0d6b7c5 JB |
1806 | #else |
1807 | #ifdef O_NDELAY | |
1808 | fcntl (inchannel, F_SETFL, O_NDELAY); | |
03832893 | 1809 | fcntl (outchannel, F_SETFL, O_NDELAY); |
d0d6b7c5 JB |
1810 | #endif |
1811 | #endif | |
1812 | ||
1813 | /* Record this as an active process, with its channels. | |
1814 | As a result, child_setup will close Emacs's side of the pipes. */ | |
1815 | chan_process[inchannel] = process; | |
60f0fb11 SM |
1816 | XPROCESS (process)->infd = inchannel; |
1817 | XPROCESS (process)->outfd = outchannel; | |
16782258 JD |
1818 | |
1819 | /* Previously we recorded the tty descriptor used in the subprocess. | |
1820 | It was only used for getting the foreground tty process, so now | |
1821 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
1822 | more portable (see USG_SUBTTY_WORKS above). */ | |
1823 | ||
60f0fb11 | 1824 | XPROCESS (process)->pty_flag = pty_flag; |
d0d6b7c5 | 1825 | XPROCESS (process)->status = Qrun; |
03f04413 | 1826 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
1827 | |
1828 | /* Delay interrupts until we have a chance to store | |
1829 | the new fork's pid in its process structure */ | |
0dc70c33 KH |
1830 | sigemptyset (&blocked); |
1831 | #ifdef SIGCHLD | |
1832 | sigaddset (&blocked, SIGCHLD); | |
1833 | #endif | |
351e611f | 1834 | #ifdef HAVE_WORKING_VFORK |
0dc70c33 KH |
1835 | /* On many hosts (e.g. Solaris 2.4), if a vforked child calls `signal', |
1836 | this sets the parent's signal handlers as well as the child's. | |
1837 | So delay all interrupts whose handlers the child might munge, | |
1838 | and record the current handlers so they can be restored later. */ | |
1839 | sigaddset (&blocked, SIGINT ); sigaction (SIGINT , 0, &sigint_action ); | |
1840 | sigaddset (&blocked, SIGQUIT); sigaction (SIGQUIT, 0, &sigquit_action); | |
1841 | #ifdef AIX | |
1842 | sigaddset (&blocked, SIGHUP ); sigaction (SIGHUP , 0, &sighup_action ); | |
1843 | #endif | |
351e611f | 1844 | #endif /* HAVE_WORKING_VFORK */ |
0dc70c33 | 1845 | sigprocmask (SIG_BLOCK, &blocked, &procmask); |
d0d6b7c5 | 1846 | |
3081bf8d | 1847 | FD_SET (inchannel, &input_wait_mask); |
a69281ff | 1848 | FD_SET (inchannel, &non_keyboard_wait_mask); |
3081bf8d KH |
1849 | if (inchannel > max_process_desc) |
1850 | max_process_desc = inchannel; | |
1851 | ||
d0d6b7c5 JB |
1852 | /* Until we store the proper pid, enable sigchld_handler |
1853 | to recognize an unknown pid as standing for this process. | |
1854 | It is very important not to let this `marker' value stay | |
1855 | in the table after this function has returned; if it does | |
1856 | it might cause call-process to hang and subsequent asynchronous | |
1857 | processes to get their return values scrambled. */ | |
6bfd98e7 | 1858 | XPROCESS (process)->pid = -1; |
d0d6b7c5 | 1859 | |
ececcbec | 1860 | BLOCK_INPUT; |
177c0ea7 | 1861 | |
d0d6b7c5 JB |
1862 | { |
1863 | /* child_setup must clobber environ on systems with true vfork. | |
1864 | Protect it from permanent change. */ | |
1865 | char **save_environ = environ; | |
1866 | ||
14dc6093 | 1867 | current_dir = ENCODE_FILE (current_dir); |
a932f187 | 1868 | |
e98d950b | 1869 | #ifndef WINDOWSNT |
d0d6b7c5 JB |
1870 | pid = vfork (); |
1871 | if (pid == 0) | |
e98d950b | 1872 | #endif /* not WINDOWSNT */ |
d0d6b7c5 JB |
1873 | { |
1874 | int xforkin = forkin; | |
1875 | int xforkout = forkout; | |
1876 | ||
1877 | #if 0 /* This was probably a mistake--it duplicates code later on, | |
1878 | but fails to handle all the cases. */ | |
1879 | /* Make sure SIGCHLD is not blocked in the child. */ | |
1880 | sigsetmask (SIGEMPTYMASK); | |
1881 | #endif | |
1882 | ||
1883 | /* Make the pty be the controlling terminal of the process. */ | |
1884 | #ifdef HAVE_PTYS | |
1885 | /* First, disconnect its current controlling terminal. */ | |
1886 | #ifdef HAVE_SETSID | |
7ce48618 RS |
1887 | /* We tried doing setsid only if pty_flag, but it caused |
1888 | process_set_signal to fail on SGI when using a pipe. */ | |
1889 | setsid (); | |
ce4c9c90 | 1890 | /* Make the pty's terminal the controlling terminal. */ |
ce8f5a9a | 1891 | if (pty_flag && xforkin >= 0) |
39e9ebcd | 1892 | { |
39e9ebcd RS |
1893 | #ifdef TIOCSCTTY |
1894 | /* We ignore the return value | |
1895 | because faith@cs.unc.edu says that is necessary on Linux. */ | |
1896 | ioctl (xforkin, TIOCSCTTY, 0); | |
ce4c9c90 | 1897 | #endif |
39e9ebcd | 1898 | } |
d0d6b7c5 | 1899 | #else /* not HAVE_SETSID */ |
c14e53a4 | 1900 | #ifdef USG |
000ab717 | 1901 | /* It's very important to call setpgrp here and no time |
d0d6b7c5 JB |
1902 | afterwards. Otherwise, we lose our controlling tty which |
1903 | is set when we open the pty. */ | |
1904 | setpgrp (); | |
1905 | #endif /* USG */ | |
1906 | #endif /* not HAVE_SETSID */ | |
a7ebc409 | 1907 | #if defined (LDISC1) |
9bcf8ec6 KH |
1908 | if (pty_flag && xforkin >= 0) |
1909 | { | |
1910 | struct termios t; | |
1911 | tcgetattr (xforkin, &t); | |
1912 | t.c_lflag = LDISC1; | |
1913 | if (tcsetattr (xforkin, TCSANOW, &t) < 0) | |
68c45bf0 | 1914 | emacs_write (1, "create_process/tcsetattr LDISC1 failed\n", 39); |
9bcf8ec6 KH |
1915 | } |
1916 | #else | |
aafadd9f | 1917 | #if defined (NTTYDISC) && defined (TIOCSETD) |
ff773a4e | 1918 | if (pty_flag && xforkin >= 0) |
afc549fd RS |
1919 | { |
1920 | /* Use new line discipline. */ | |
1921 | int ldisc = NTTYDISC; | |
4458f555 | 1922 | ioctl (xforkin, TIOCSETD, &ldisc); |
afc549fd | 1923 | } |
000ab717 | 1924 | #endif |
9bcf8ec6 | 1925 | #endif |
177c0ea7 | 1926 | #ifdef TIOCNOTTY |
d0d6b7c5 JB |
1927 | /* In 4.3BSD, the TIOCSPGRP bug has been fixed, and now you |
1928 | can do TIOCSPGRP only to the process's controlling tty. */ | |
1929 | if (pty_flag) | |
1930 | { | |
177c0ea7 | 1931 | /* I wonder: would just ioctl (0, TIOCNOTTY, 0) work here? |
d0d6b7c5 | 1932 | I can't test it since I don't have 4.3. */ |
68c45bf0 | 1933 | int j = emacs_open ("/dev/tty", O_RDWR, 0); |
ce8f5a9a AS |
1934 | if (j >= 0) |
1935 | { | |
1936 | ioctl (j, TIOCNOTTY, 0); | |
1937 | emacs_close (j); | |
1938 | } | |
5a570e37 | 1939 | #ifndef USG |
d0d6b7c5 JB |
1940 | /* In order to get a controlling terminal on some versions |
1941 | of BSD, it is necessary to put the process in pgrp 0 | |
1942 | before it opens the terminal. */ | |
99c1aeca | 1943 | #ifdef HAVE_SETPGID |
3ea1d291 RS |
1944 | setpgid (0, 0); |
1945 | #else | |
d0d6b7c5 | 1946 | setpgrp (0, 0); |
3ea1d291 | 1947 | #endif |
d0d6b7c5 JB |
1948 | #endif |
1949 | } | |
1950 | #endif /* TIOCNOTTY */ | |
1951 | ||
e39a993c | 1952 | #if !defined (DONT_REOPEN_PTY) |
d0d6b7c5 | 1953 | /*** There is a suggestion that this ought to be a |
99153b9e RS |
1954 | conditional on TIOCSPGRP, |
1955 | or !(defined (HAVE_SETSID) && defined (TIOCSCTTY)). | |
1956 | Trying the latter gave the wrong results on Debian GNU/Linux 1.1; | |
1957 | that system does seem to need this code, even though | |
1958 | both HAVE_SETSID and TIOCSCTTY are defined. */ | |
d0d6b7c5 JB |
1959 | /* Now close the pty (if we had it open) and reopen it. |
1960 | This makes the pty the controlling terminal of the subprocess. */ | |
1961 | if (pty_flag) | |
1962 | { | |
99e3d726 | 1963 | |
68c45bf0 PE |
1964 | /* I wonder if emacs_close (emacs_open (pty_name, ...)) |
1965 | would work? */ | |
d0d6b7c5 | 1966 | if (xforkin >= 0) |
68c45bf0 PE |
1967 | emacs_close (xforkin); |
1968 | xforkout = xforkin = emacs_open (pty_name, O_RDWR, 0); | |
d0d6b7c5 | 1969 | |
4aa54ba8 RS |
1970 | if (xforkin < 0) |
1971 | { | |
68c45bf0 PE |
1972 | emacs_write (1, "Couldn't open the pty terminal ", 31); |
1973 | emacs_write (1, pty_name, strlen (pty_name)); | |
1974 | emacs_write (1, "\n", 1); | |
4aa54ba8 RS |
1975 | _exit (1); |
1976 | } | |
1977 | ||
d0d6b7c5 | 1978 | } |
e39a993c | 1979 | #endif /* not DONT_REOPEN_PTY */ |
e9bf058b | 1980 | |
d0d6b7c5 | 1981 | #ifdef SETUP_SLAVE_PTY |
13a72104 RS |
1982 | if (pty_flag) |
1983 | { | |
1984 | SETUP_SLAVE_PTY; | |
1985 | } | |
d0d6b7c5 JB |
1986 | #endif /* SETUP_SLAVE_PTY */ |
1987 | #ifdef AIX | |
1988 | /* On AIX, we've disabled SIGHUP above once we start a child on a pty. | |
1989 | Now reenable it in the child, so it will die when we want it to. */ | |
1990 | if (pty_flag) | |
1991 | signal (SIGHUP, SIG_DFL); | |
1992 | #endif | |
1993 | #endif /* HAVE_PTYS */ | |
1994 | ||
0dc70c33 KH |
1995 | signal (SIGINT, SIG_DFL); |
1996 | signal (SIGQUIT, SIG_DFL); | |
1997 | ||
1998 | /* Stop blocking signals in the child. */ | |
0dc70c33 | 1999 | sigprocmask (SIG_SETMASK, &procmask, 0); |
5e7e1da2 | 2000 | |
ab01d0a8 RS |
2001 | if (pty_flag) |
2002 | child_setup_tty (xforkout); | |
e98d950b RS |
2003 | #ifdef WINDOWSNT |
2004 | pid = child_setup (xforkin, xforkout, xforkout, | |
2005 | new_argv, 1, current_dir); | |
177c0ea7 | 2006 | #else /* not WINDOWSNT */ |
2c4df143 YM |
2007 | #ifdef FD_CLOEXEC |
2008 | emacs_close (wait_child_setup[0]); | |
2009 | #endif | |
d0d6b7c5 | 2010 | child_setup (xforkin, xforkout, xforkout, |
e065a56e | 2011 | new_argv, 1, current_dir); |
e98d950b | 2012 | #endif /* not WINDOWSNT */ |
d0d6b7c5 JB |
2013 | } |
2014 | environ = save_environ; | |
2015 | } | |
2016 | ||
ececcbec RS |
2017 | UNBLOCK_INPUT; |
2018 | ||
4a127b3b | 2019 | /* This runs in the Emacs process. */ |
d0d6b7c5 | 2020 | if (pid < 0) |
6311cf58 RS |
2021 | { |
2022 | if (forkin >= 0) | |
68c45bf0 | 2023 | emacs_close (forkin); |
6311cf58 | 2024 | if (forkin != forkout && forkout >= 0) |
68c45bf0 | 2025 | emacs_close (forkout); |
6311cf58 | 2026 | } |
4a127b3b KH |
2027 | else |
2028 | { | |
2029 | /* vfork succeeded. */ | |
6bfd98e7 | 2030 | XPROCESS (process)->pid = pid; |
d0d6b7c5 | 2031 | |
e98d950b | 2032 | #ifdef WINDOWSNT |
4a127b3b | 2033 | register_child (pid, inchannel); |
e98d950b RS |
2034 | #endif /* WINDOWSNT */ |
2035 | ||
4a127b3b KH |
2036 | /* If the subfork execv fails, and it exits, |
2037 | this close hangs. I don't know why. | |
2038 | So have an interrupt jar it loose. */ | |
30904ab7 GM |
2039 | { |
2040 | struct atimer *timer; | |
2041 | EMACS_TIME offset; | |
177c0ea7 | 2042 | |
30904ab7 GM |
2043 | stop_polling (); |
2044 | EMACS_SET_SECS_USECS (offset, 1, 0); | |
2045 | timer = start_atimer (ATIMER_RELATIVE, offset, create_process_1, 0); | |
177c0ea7 | 2046 | |
30904ab7 GM |
2047 | if (forkin >= 0) |
2048 | emacs_close (forkin); | |
2049 | ||
2050 | cancel_atimer (timer); | |
2051 | start_polling (); | |
2052 | } | |
177c0ea7 | 2053 | |
4a127b3b | 2054 | if (forkin != forkout && forkout >= 0) |
68c45bf0 | 2055 | emacs_close (forkout); |
d0d6b7c5 | 2056 | |
875e6b94 | 2057 | #ifdef HAVE_PTYS |
4a127b3b KH |
2058 | if (pty_flag) |
2059 | XPROCESS (process)->tty_name = build_string (pty_name); | |
2060 | else | |
875e6b94 | 2061 | #endif |
4a127b3b | 2062 | XPROCESS (process)->tty_name = Qnil; |
2c4df143 YM |
2063 | |
2064 | #if !defined (WINDOWSNT) && defined (FD_CLOEXEC) | |
2065 | /* Wait for child_setup to complete in case that vfork is | |
2066 | actually defined as fork. The descriptor wait_child_setup[1] | |
2067 | of a pipe is closed at the child side either by close-on-exec | |
2068 | on successful execvp or the _exit call in child_setup. */ | |
2069 | { | |
2070 | char dummy; | |
2071 | ||
2072 | emacs_close (wait_child_setup[1]); | |
2073 | emacs_read (wait_child_setup[0], &dummy, 1); | |
2074 | emacs_close (wait_child_setup[0]); | |
2075 | } | |
2076 | #endif | |
4a127b3b | 2077 | } |
3b9a3dfa | 2078 | |
4a127b3b KH |
2079 | /* Restore the signal state whether vfork succeeded or not. |
2080 | (We will signal an error, below, if it failed.) */ | |
351e611f | 2081 | #ifdef HAVE_WORKING_VFORK |
0dc70c33 KH |
2082 | /* Restore the parent's signal handlers. */ |
2083 | sigaction (SIGINT, &sigint_action, 0); | |
2084 | sigaction (SIGQUIT, &sigquit_action, 0); | |
2085 | #ifdef AIX | |
2086 | sigaction (SIGHUP, &sighup_action, 0); | |
2087 | #endif | |
351e611f | 2088 | #endif /* HAVE_WORKING_VFORK */ |
0dc70c33 KH |
2089 | /* Stop blocking signals in the parent. */ |
2090 | sigprocmask (SIG_SETMASK, &procmask, 0); | |
4a127b3b KH |
2091 | |
2092 | /* Now generate the error if vfork failed. */ | |
2093 | if (pid < 0) | |
2094 | report_file_error ("Doing vfork", Qnil); | |
d0d6b7c5 | 2095 | } |
d0d6b7c5 | 2096 | |
850d0752 | 2097 | void |
d3da34e0 | 2098 | create_pty (Lisp_Object process) |
850d0752 NR |
2099 | { |
2100 | int inchannel, outchannel; | |
2101 | ||
2102 | /* Use volatile to protect variables from being clobbered by longjmp. */ | |
2103 | volatile int forkin, forkout; | |
2104 | volatile int pty_flag = 0; | |
2105 | ||
2106 | inchannel = outchannel = -1; | |
2107 | ||
2108 | #ifdef HAVE_PTYS | |
2109 | if (!NILP (Vprocess_connection_type)) | |
2110 | outchannel = inchannel = allocate_pty (); | |
2111 | ||
2112 | if (inchannel >= 0) | |
2113 | { | |
2114 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) | |
2115 | /* On most USG systems it does not work to open the pty's tty here, | |
2116 | then close it and reopen it in the child. */ | |
2117 | #ifdef O_NOCTTY | |
2118 | /* Don't let this terminal become our controlling terminal | |
2119 | (in case we don't have one). */ | |
2120 | forkout = forkin = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); | |
2121 | #else | |
2122 | forkout = forkin = emacs_open (pty_name, O_RDWR, 0); | |
2123 | #endif | |
2124 | if (forkin < 0) | |
2125 | report_file_error ("Opening pty", Qnil); | |
019d2c4c | 2126 | #if defined (DONT_REOPEN_PTY) |
850d0752 NR |
2127 | /* In the case that vfork is defined as fork, the parent process |
2128 | (Emacs) may send some data before the child process completes | |
2129 | tty options setup. So we setup tty before forking. */ | |
2130 | child_setup_tty (forkout); | |
019d2c4c | 2131 | #endif /* DONT_REOPEN_PTY */ |
850d0752 NR |
2132 | #else |
2133 | forkin = forkout = -1; | |
2134 | #endif /* not USG, or USG_SUBTTY_WORKS */ | |
2135 | pty_flag = 1; | |
2136 | } | |
2137 | #endif /* HAVE_PTYS */ | |
2138 | ||
2139 | #ifdef O_NONBLOCK | |
2140 | fcntl (inchannel, F_SETFL, O_NONBLOCK); | |
2141 | fcntl (outchannel, F_SETFL, O_NONBLOCK); | |
2142 | #else | |
2143 | #ifdef O_NDELAY | |
2144 | fcntl (inchannel, F_SETFL, O_NDELAY); | |
2145 | fcntl (outchannel, F_SETFL, O_NDELAY); | |
2146 | #endif | |
2147 | #endif | |
2148 | ||
2149 | /* Record this as an active process, with its channels. | |
2150 | As a result, child_setup will close Emacs's side of the pipes. */ | |
2151 | chan_process[inchannel] = process; | |
2152 | XPROCESS (process)->infd = inchannel; | |
2153 | XPROCESS (process)->outfd = outchannel; | |
2154 | ||
2155 | /* Previously we recorded the tty descriptor used in the subprocess. | |
2156 | It was only used for getting the foreground tty process, so now | |
2157 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
2158 | more portable (see USG_SUBTTY_WORKS above). */ | |
2159 | ||
2160 | XPROCESS (process)->pty_flag = pty_flag; | |
2161 | XPROCESS (process)->status = Qrun; | |
2162 | setup_process_coding_systems (process); | |
2163 | ||
2164 | FD_SET (inchannel, &input_wait_mask); | |
2165 | FD_SET (inchannel, &non_keyboard_wait_mask); | |
2166 | if (inchannel > max_process_desc) | |
2167 | max_process_desc = inchannel; | |
2168 | ||
2169 | XPROCESS (process)->pid = -2; | |
8b9fc636 EZ |
2170 | #ifdef HAVE_PTYS |
2171 | if (pty_flag) | |
2172 | XPROCESS (process)->tty_name = build_string (pty_name); | |
2173 | else | |
2174 | #endif | |
2175 | XPROCESS (process)->tty_name = Qnil; | |
850d0752 NR |
2176 | } |
2177 | ||
e690ca94 | 2178 | \f |
e690ca94 KS |
2179 | /* Convert an internal struct sockaddr to a lisp object (vector or string). |
2180 | The address family of sa is not included in the result. */ | |
2181 | ||
2182 | static Lisp_Object | |
d3da34e0 | 2183 | conv_sockaddr_to_lisp (struct sockaddr *sa, int len) |
e690ca94 KS |
2184 | { |
2185 | Lisp_Object address; | |
2186 | int i; | |
2187 | unsigned char *cp; | |
2188 | register struct Lisp_Vector *p; | |
2189 | ||
63136da6 AS |
2190 | /* Workaround for a bug in getsockname on BSD: Names bound to |
2191 | sockets in the UNIX domain are inaccessible; getsockname returns | |
2192 | a zero length name. */ | |
89887d67 | 2193 | if (len < offsetof (struct sockaddr, sa_family) + sizeof (sa->sa_family)) |
fff4e459 | 2194 | return empty_unibyte_string; |
63136da6 | 2195 | |
e690ca94 KS |
2196 | switch (sa->sa_family) |
2197 | { | |
2198 | case AF_INET: | |
2199 | { | |
2200 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
2201 | len = sizeof (sin->sin_addr) + 1; | |
2202 | address = Fmake_vector (make_number (len), Qnil); | |
2203 | p = XVECTOR (address); | |
2204 | p->contents[--len] = make_number (ntohs (sin->sin_port)); | |
63136da6 | 2205 | cp = (unsigned char *) &sin->sin_addr; |
e690ca94 KS |
2206 | break; |
2207 | } | |
e1652a86 KS |
2208 | #ifdef AF_INET6 |
2209 | case AF_INET6: | |
2210 | { | |
2211 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
63136da6 | 2212 | uint16_t *ip6 = (uint16_t *) &sin6->sin6_addr; |
e1652a86 KS |
2213 | len = sizeof (sin6->sin6_addr)/2 + 1; |
2214 | address = Fmake_vector (make_number (len), Qnil); | |
2215 | p = XVECTOR (address); | |
2216 | p->contents[--len] = make_number (ntohs (sin6->sin6_port)); | |
2217 | for (i = 0; i < len; i++) | |
2218 | p->contents[i] = make_number (ntohs (ip6[i])); | |
2219 | return address; | |
2220 | } | |
2221 | #endif | |
e690ca94 KS |
2222 | #ifdef HAVE_LOCAL_SOCKETS |
2223 | case AF_LOCAL: | |
2224 | { | |
fb23673a EZ |
2225 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
2226 | for (i = 0; i < sizeof (sockun->sun_path); i++) | |
2227 | if (sockun->sun_path[i] == 0) | |
e690ca94 | 2228 | break; |
fb23673a | 2229 | return make_unibyte_string (sockun->sun_path, i); |
e690ca94 KS |
2230 | } |
2231 | #endif | |
2232 | default: | |
89887d67 | 2233 | len -= offsetof (struct sockaddr, sa_family) + sizeof (sa->sa_family); |
e690ca94 KS |
2234 | address = Fcons (make_number (sa->sa_family), |
2235 | Fmake_vector (make_number (len), Qnil)); | |
2236 | p = XVECTOR (XCDR (address)); | |
63136da6 | 2237 | cp = (unsigned char *) &sa->sa_family + sizeof (sa->sa_family); |
e690ca94 KS |
2238 | break; |
2239 | } | |
2240 | ||
2241 | i = 0; | |
2242 | while (i < len) | |
2243 | p->contents[i++] = make_number (*cp++); | |
2244 | ||
2245 | return address; | |
2246 | } | |
2247 | ||
2248 | ||
2249 | /* Get family and required size for sockaddr structure to hold ADDRESS. */ | |
2250 | ||
2251 | static int | |
d3da34e0 | 2252 | get_lisp_to_sockaddr_size (Lisp_Object address, int *familyp) |
e690ca94 KS |
2253 | { |
2254 | register struct Lisp_Vector *p; | |
2255 | ||
2256 | if (VECTORP (address)) | |
2257 | { | |
2258 | p = XVECTOR (address); | |
2259 | if (p->size == 5) | |
2260 | { | |
2261 | *familyp = AF_INET; | |
2262 | return sizeof (struct sockaddr_in); | |
2263 | } | |
e1652a86 KS |
2264 | #ifdef AF_INET6 |
2265 | else if (p->size == 9) | |
2266 | { | |
2267 | *familyp = AF_INET6; | |
2268 | return sizeof (struct sockaddr_in6); | |
2269 | } | |
2270 | #endif | |
e690ca94 KS |
2271 | } |
2272 | #ifdef HAVE_LOCAL_SOCKETS | |
2273 | else if (STRINGP (address)) | |
2274 | { | |
2275 | *familyp = AF_LOCAL; | |
2276 | return sizeof (struct sockaddr_un); | |
2277 | } | |
2278 | #endif | |
2279 | else if (CONSP (address) && INTEGERP (XCAR (address)) && VECTORP (XCDR (address))) | |
2280 | { | |
2281 | struct sockaddr *sa; | |
2282 | *familyp = XINT (XCAR (address)); | |
2283 | p = XVECTOR (XCDR (address)); | |
2284 | return p->size + sizeof (sa->sa_family); | |
2285 | } | |
2286 | return 0; | |
2287 | } | |
2288 | ||
2289 | /* Convert an address object (vector or string) to an internal sockaddr. | |
9d1a8e5d RS |
2290 | |
2291 | The address format has been basically validated by | |
2292 | get_lisp_to_sockaddr_size, but this does not mean FAMILY is valid; | |
2293 | it could have come from user data. So if FAMILY is not valid, | |
2294 | we return after zeroing *SA. */ | |
e690ca94 KS |
2295 | |
2296 | static void | |
d3da34e0 | 2297 | conv_lisp_to_sockaddr (int family, Lisp_Object address, struct sockaddr *sa, int len) |
e690ca94 KS |
2298 | { |
2299 | register struct Lisp_Vector *p; | |
34967d0f | 2300 | register unsigned char *cp = NULL; |
e690ca94 KS |
2301 | register int i; |
2302 | ||
72af86bd | 2303 | memset (sa, 0, len); |
e690ca94 KS |
2304 | |
2305 | if (VECTORP (address)) | |
2306 | { | |
2307 | p = XVECTOR (address); | |
2308 | if (family == AF_INET) | |
2309 | { | |
2310 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
2311 | len = sizeof (sin->sin_addr) + 1; | |
2312 | i = XINT (p->contents[--len]); | |
2313 | sin->sin_port = htons (i); | |
2314 | cp = (unsigned char *)&sin->sin_addr; | |
9d1a8e5d | 2315 | sa->sa_family = family; |
e690ca94 | 2316 | } |
e1652a86 KS |
2317 | #ifdef AF_INET6 |
2318 | else if (family == AF_INET6) | |
2319 | { | |
2320 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
2321 | uint16_t *ip6 = (uint16_t *)&sin6->sin6_addr; | |
2322 | len = sizeof (sin6->sin6_addr) + 1; | |
2323 | i = XINT (p->contents[--len]); | |
2324 | sin6->sin6_port = htons (i); | |
2325 | for (i = 0; i < len; i++) | |
2326 | if (INTEGERP (p->contents[i])) | |
2327 | { | |
2328 | int j = XFASTINT (p->contents[i]) & 0xffff; | |
2329 | ip6[i] = ntohs (j); | |
2330 | } | |
9d1a8e5d | 2331 | sa->sa_family = family; |
0eb7675e | 2332 | return; |
e1652a86 KS |
2333 | } |
2334 | #endif | |
0eb7675e AS |
2335 | else |
2336 | return; | |
e690ca94 KS |
2337 | } |
2338 | else if (STRINGP (address)) | |
2339 | { | |
2340 | #ifdef HAVE_LOCAL_SOCKETS | |
2341 | if (family == AF_LOCAL) | |
2342 | { | |
fb23673a | 2343 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
d5db4077 | 2344 | cp = SDATA (address); |
fb23673a EZ |
2345 | for (i = 0; i < sizeof (sockun->sun_path) && *cp; i++) |
2346 | sockun->sun_path[i] = *cp++; | |
9d1a8e5d | 2347 | sa->sa_family = family; |
e690ca94 KS |
2348 | } |
2349 | #endif | |
2350 | return; | |
2351 | } | |
2352 | else | |
2353 | { | |
2354 | p = XVECTOR (XCDR (address)); | |
2355 | cp = (unsigned char *)sa + sizeof (sa->sa_family); | |
2356 | } | |
2357 | ||
2358 | for (i = 0; i < len; i++) | |
2359 | if (INTEGERP (p->contents[i])) | |
2360 | *cp++ = XFASTINT (p->contents[i]) & 0xff; | |
2361 | } | |
2362 | ||
2363 | #ifdef DATAGRAM_SOCKETS | |
2364 | DEFUN ("process-datagram-address", Fprocess_datagram_address, Sprocess_datagram_address, | |
2365 | 1, 1, 0, | |
2366 | doc: /* Get the current datagram address associated with PROCESS. */) | |
5842a27b | 2367 | (Lisp_Object process) |
e690ca94 KS |
2368 | { |
2369 | int channel; | |
2370 | ||
2371 | CHECK_PROCESS (process); | |
2372 | ||
2373 | if (!DATAGRAM_CONN_P (process)) | |
2374 | return Qnil; | |
2375 | ||
60f0fb11 | 2376 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2377 | return conv_sockaddr_to_lisp (datagram_address[channel].sa, |
2378 | datagram_address[channel].len); | |
2379 | } | |
2380 | ||
2381 | DEFUN ("set-process-datagram-address", Fset_process_datagram_address, Sset_process_datagram_address, | |
2382 | 2, 2, 0, | |
2383 | doc: /* Set the datagram address for PROCESS to ADDRESS. | |
2384 | Returns nil upon error setting address, ADDRESS otherwise. */) | |
5842a27b | 2385 | (Lisp_Object process, Lisp_Object address) |
e690ca94 KS |
2386 | { |
2387 | int channel; | |
2388 | int family, len; | |
2389 | ||
2390 | CHECK_PROCESS (process); | |
2391 | ||
2392 | if (!DATAGRAM_CONN_P (process)) | |
2393 | return Qnil; | |
2394 | ||
60f0fb11 | 2395 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2396 | |
2397 | len = get_lisp_to_sockaddr_size (address, &family); | |
2398 | if (datagram_address[channel].len != len) | |
2399 | return Qnil; | |
2400 | conv_lisp_to_sockaddr (family, address, datagram_address[channel].sa, len); | |
2401 | return address; | |
2402 | } | |
2403 | #endif | |
2404 | \f | |
2405 | ||
5e2327cf | 2406 | static const struct socket_options { |
e690ca94 | 2407 | /* The name of this option. Should be lowercase version of option |
177c0ea7 | 2408 | name without SO_ prefix. */ |
fce70521 | 2409 | const char *name; |
e690ca94 KS |
2410 | /* Option level SOL_... */ |
2411 | int optlevel; | |
2412 | /* Option number SO_... */ | |
2413 | int optnum; | |
6b61353c KH |
2414 | enum { SOPT_UNKNOWN, SOPT_BOOL, SOPT_INT, SOPT_IFNAME, SOPT_LINGER } opttype; |
2415 | enum { OPIX_NONE=0, OPIX_MISC=1, OPIX_REUSEADDR=2 } optbit; | |
e690ca94 KS |
2416 | } socket_options[] = |
2417 | { | |
2418 | #ifdef SO_BINDTODEVICE | |
6b61353c | 2419 | { ":bindtodevice", SOL_SOCKET, SO_BINDTODEVICE, SOPT_IFNAME, OPIX_MISC }, |
e690ca94 KS |
2420 | #endif |
2421 | #ifdef SO_BROADCAST | |
6b61353c | 2422 | { ":broadcast", SOL_SOCKET, SO_BROADCAST, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2423 | #endif |
2424 | #ifdef SO_DONTROUTE | |
6b61353c | 2425 | { ":dontroute", SOL_SOCKET, SO_DONTROUTE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2426 | #endif |
2427 | #ifdef SO_KEEPALIVE | |
6b61353c | 2428 | { ":keepalive", SOL_SOCKET, SO_KEEPALIVE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2429 | #endif |
2430 | #ifdef SO_LINGER | |
6b61353c | 2431 | { ":linger", SOL_SOCKET, SO_LINGER, SOPT_LINGER, OPIX_MISC }, |
e690ca94 KS |
2432 | #endif |
2433 | #ifdef SO_OOBINLINE | |
6b61353c | 2434 | { ":oobinline", SOL_SOCKET, SO_OOBINLINE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2435 | #endif |
2436 | #ifdef SO_PRIORITY | |
6b61353c | 2437 | { ":priority", SOL_SOCKET, SO_PRIORITY, SOPT_INT, OPIX_MISC }, |
e690ca94 KS |
2438 | #endif |
2439 | #ifdef SO_REUSEADDR | |
6b61353c | 2440 | { ":reuseaddr", SOL_SOCKET, SO_REUSEADDR, SOPT_BOOL, OPIX_REUSEADDR }, |
e690ca94 | 2441 | #endif |
6b61353c | 2442 | { 0, 0, 0, SOPT_UNKNOWN, OPIX_NONE } |
e690ca94 KS |
2443 | }; |
2444 | ||
6b61353c | 2445 | /* Set option OPT to value VAL on socket S. |
e690ca94 | 2446 | |
6b61353c KH |
2447 | Returns (1<<socket_options[OPT].optbit) if option is known, 0 otherwise. |
2448 | Signals an error if setting a known option fails. | |
2449 | */ | |
e690ca94 KS |
2450 | |
2451 | static int | |
d3da34e0 | 2452 | set_socket_option (int s, Lisp_Object opt, Lisp_Object val) |
e690ca94 | 2453 | { |
6b61353c | 2454 | char *name; |
5e2327cf | 2455 | const struct socket_options *sopt; |
6b61353c | 2456 | int ret = 0; |
e690ca94 | 2457 | |
6b61353c | 2458 | CHECK_SYMBOL (opt); |
e690ca94 | 2459 | |
6b61353c KH |
2460 | name = (char *) SDATA (SYMBOL_NAME (opt)); |
2461 | for (sopt = socket_options; sopt->name; sopt++) | |
2462 | if (strcmp (name, sopt->name) == 0) | |
2463 | break; | |
e690ca94 | 2464 | |
6b61353c KH |
2465 | switch (sopt->opttype) |
2466 | { | |
2467 | case SOPT_BOOL: | |
2468 | { | |
2469 | int optval; | |
2470 | optval = NILP (val) ? 0 : 1; | |
2471 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2472 | &optval, sizeof (optval)); | |
2473 | break; | |
2474 | } | |
e690ca94 | 2475 | |
6b61353c KH |
2476 | case SOPT_INT: |
2477 | { | |
2478 | int optval; | |
2479 | if (INTEGERP (val)) | |
2480 | optval = XINT (val); | |
2481 | else | |
2482 | error ("Bad option value for %s", name); | |
2483 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2484 | &optval, sizeof (optval)); | |
2485 | break; | |
2486 | } | |
e690ca94 | 2487 | |
6b61353c KH |
2488 | #ifdef SO_BINDTODEVICE |
2489 | case SOPT_IFNAME: | |
2490 | { | |
2491 | char devname[IFNAMSIZ+1]; | |
e690ca94 | 2492 | |
6b61353c KH |
2493 | /* This is broken, at least in the Linux 2.4 kernel. |
2494 | To unbind, the arg must be a zero integer, not the empty string. | |
2495 | This should work on all systems. KFS. 2003-09-23. */ | |
72af86bd | 2496 | memset (devname, 0, sizeof devname); |
6b61353c | 2497 | if (STRINGP (val)) |
e690ca94 | 2498 | { |
6b61353c KH |
2499 | char *arg = (char *) SDATA (val); |
2500 | int len = min (strlen (arg), IFNAMSIZ); | |
72af86bd | 2501 | memcpy (devname, arg, len); |
e690ca94 | 2502 | } |
6b61353c KH |
2503 | else if (!NILP (val)) |
2504 | error ("Bad option value for %s", name); | |
2505 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2506 | devname, IFNAMSIZ); | |
2507 | break; | |
2508 | } | |
2509 | #endif | |
e690ca94 | 2510 | |
177c0ea7 | 2511 | #ifdef SO_LINGER |
6b61353c KH |
2512 | case SOPT_LINGER: |
2513 | { | |
2514 | struct linger linger; | |
e690ca94 | 2515 | |
6b61353c KH |
2516 | linger.l_onoff = 1; |
2517 | linger.l_linger = 0; | |
2518 | if (INTEGERP (val)) | |
2519 | linger.l_linger = XINT (val); | |
2520 | else | |
2521 | linger.l_onoff = NILP (val) ? 0 : 1; | |
2522 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2523 | &linger, sizeof (linger)); | |
2524 | break; | |
2525 | } | |
e690ca94 | 2526 | #endif |
6b61353c KH |
2527 | |
2528 | default: | |
2529 | return 0; | |
e690ca94 | 2530 | } |
6b61353c KH |
2531 | |
2532 | if (ret < 0) | |
2533 | report_file_error ("Cannot set network option", | |
2534 | Fcons (opt, Fcons (val, Qnil))); | |
2535 | return (1 << sopt->optbit); | |
e690ca94 KS |
2536 | } |
2537 | ||
6b61353c KH |
2538 | |
2539 | DEFUN ("set-network-process-option", | |
2540 | Fset_network_process_option, Sset_network_process_option, | |
2541 | 3, 4, 0, | |
2542 | doc: /* For network process PROCESS set option OPTION to value VALUE. | |
2543 | See `make-network-process' for a list of options and values. | |
2544 | If optional fourth arg NO-ERROR is non-nil, don't signal an error if | |
2545 | OPTION is not a supported option, return nil instead; otherwise return t. */) | |
5842a27b | 2546 | (Lisp_Object process, Lisp_Object option, Lisp_Object value, Lisp_Object no_error) |
e690ca94 | 2547 | { |
6b61353c KH |
2548 | int s; |
2549 | struct Lisp_Process *p; | |
e690ca94 | 2550 | |
e690ca94 | 2551 | CHECK_PROCESS (process); |
6b61353c KH |
2552 | p = XPROCESS (process); |
2553 | if (!NETCONN1_P (p)) | |
2554 | error ("Process is not a network process"); | |
2555 | ||
60f0fb11 | 2556 | s = p->infd; |
6b61353c KH |
2557 | if (s < 0) |
2558 | error ("Process is not running"); | |
2559 | ||
2560 | if (set_socket_option (s, option, value)) | |
e690ca94 | 2561 | { |
6b61353c KH |
2562 | p->childp = Fplist_put (p->childp, option, value); |
2563 | return Qt; | |
e690ca94 | 2564 | } |
6b61353c KH |
2565 | |
2566 | if (NILP (no_error)) | |
2567 | error ("Unknown or unsupported option"); | |
2568 | ||
2569 | return Qnil; | |
e690ca94 | 2570 | } |
6b61353c | 2571 | |
e690ca94 | 2572 | \f |
d888760c GM |
2573 | DEFUN ("serial-process-configure", |
2574 | Fserial_process_configure, | |
2575 | Sserial_process_configure, | |
2576 | 0, MANY, 0, | |
2577 | doc: /* Configure speed, bytesize, etc. of a serial process. | |
2578 | ||
2579 | Arguments are specified as keyword/argument pairs. Attributes that | |
2580 | are not given are re-initialized from the process's current | |
2581 | configuration (available via the function `process-contact') or set to | |
2582 | reasonable default values. The following arguments are defined: | |
2583 | ||
2584 | :process PROCESS | |
2585 | :name NAME | |
2586 | :buffer BUFFER | |
2587 | :port PORT | |
2588 | -- Any of these arguments can be given to identify the process that is | |
2589 | to be configured. If none of these arguments is given, the current | |
2590 | buffer's process is used. | |
2591 | ||
2592 | :speed SPEED -- SPEED is the speed of the serial port in bits per | |
2593 | second, also called baud rate. Any value can be given for SPEED, but | |
2594 | most serial ports work only at a few defined values between 1200 and | |
2595 | 115200, with 9600 being the most common value. If SPEED is nil, the | |
2596 | serial port is not configured any further, i.e., all other arguments | |
2597 | are ignored. This may be useful for special serial ports such as | |
2598 | Bluetooth-to-serial converters which can only be configured through AT | |
2599 | commands. A value of nil for SPEED can be used only when passed | |
2600 | through `make-serial-process' or `serial-term'. | |
2601 | ||
2602 | :bytesize BYTESIZE -- BYTESIZE is the number of bits per byte, which | |
2603 | can be 7 or 8. If BYTESIZE is not given or nil, a value of 8 is used. | |
2604 | ||
2605 | :parity PARITY -- PARITY can be nil (don't use parity), the symbol | |
2606 | `odd' (use odd parity), or the symbol `even' (use even parity). If | |
2607 | PARITY is not given, no parity is used. | |
2608 | ||
2609 | :stopbits STOPBITS -- STOPBITS is the number of stopbits used to | |
2610 | terminate a byte transmission. STOPBITS can be 1 or 2. If STOPBITS | |
2611 | is not given or nil, 1 stopbit is used. | |
2612 | ||
2613 | :flowcontrol FLOWCONTROL -- FLOWCONTROL determines the type of | |
2614 | flowcontrol to be used, which is either nil (don't use flowcontrol), | |
2615 | the symbol `hw' (use RTS/CTS hardware flowcontrol), or the symbol `sw' | |
2616 | \(use XON/XOFF software flowcontrol). If FLOWCONTROL is not given, no | |
2617 | flowcontrol is used. | |
2618 | ||
2619 | `serial-process-configure' is called by `make-serial-process' for the | |
2620 | initial configuration of the serial port. | |
2621 | ||
2622 | Examples: | |
2623 | ||
2624 | \(serial-process-configure :process "/dev/ttyS0" :speed 1200) | |
2625 | ||
2626 | \(serial-process-configure | |
2627 | :buffer "COM1" :stopbits 1 :parity 'odd :flowcontrol 'hw) | |
2628 | ||
2629 | \(serial-process-configure :port "\\\\.\\COM13" :bytesize 7) | |
2630 | ||
2631 | usage: (serial-process-configure &rest ARGS) */) | |
5842a27b | 2632 | (int nargs, Lisp_Object *args) |
d888760c GM |
2633 | { |
2634 | struct Lisp_Process *p; | |
2635 | Lisp_Object contact = Qnil; | |
2636 | Lisp_Object proc = Qnil; | |
2637 | struct gcpro gcpro1; | |
2638 | ||
2639 | contact = Flist (nargs, args); | |
2640 | GCPRO1 (contact); | |
2641 | ||
2642 | proc = Fplist_get (contact, QCprocess); | |
2643 | if (NILP (proc)) | |
2644 | proc = Fplist_get (contact, QCname); | |
2645 | if (NILP (proc)) | |
2646 | proc = Fplist_get (contact, QCbuffer); | |
2647 | if (NILP (proc)) | |
2648 | proc = Fplist_get (contact, QCport); | |
2649 | proc = get_process (proc); | |
2650 | p = XPROCESS (proc); | |
a879ee6f | 2651 | if (!EQ (p->type, Qserial)) |
d888760c GM |
2652 | error ("Not a serial process"); |
2653 | ||
2654 | if (NILP (Fplist_get (p->childp, QCspeed))) | |
2655 | { | |
2656 | UNGCPRO; | |
2657 | return Qnil; | |
2658 | } | |
2659 | ||
2660 | serial_configure (p, contact); | |
2661 | ||
2662 | UNGCPRO; | |
2663 | return Qnil; | |
2664 | } | |
d888760c | 2665 | |
d888760c GM |
2666 | /* Used by make-serial-process to recover from errors. */ |
2667 | Lisp_Object make_serial_process_unwind (Lisp_Object proc) | |
2668 | { | |
2669 | if (!PROCESSP (proc)) | |
2670 | abort (); | |
2671 | remove_process (proc); | |
2672 | return Qnil; | |
2673 | } | |
d888760c | 2674 | |
d888760c GM |
2675 | DEFUN ("make-serial-process", Fmake_serial_process, Smake_serial_process, |
2676 | 0, MANY, 0, | |
2677 | doc: /* Create and return a serial port process. | |
2678 | ||
2679 | In Emacs, serial port connections are represented by process objects, | |
2680 | so input and output work as for subprocesses, and `delete-process' | |
2681 | closes a serial port connection. However, a serial process has no | |
2682 | process id, it cannot be signaled, and the status codes are different | |
2683 | from normal processes. | |
2684 | ||
2685 | `make-serial-process' creates a process and a buffer, on which you | |
2686 | probably want to use `process-send-string'. Try \\[serial-term] for | |
2687 | an interactive terminal. See below for examples. | |
2688 | ||
2689 | Arguments are specified as keyword/argument pairs. The following | |
2690 | arguments are defined: | |
2691 | ||
2692 | :port PORT -- (mandatory) PORT is the path or name of the serial port. | |
2693 | For example, this could be "/dev/ttyS0" on Unix. On Windows, this | |
2694 | could be "COM1", or "\\\\.\\COM10" for ports higher than COM9 (double | |
2695 | the backslashes in strings). | |
2696 | ||
2697 | :speed SPEED -- (mandatory) is handled by `serial-process-configure', | |
2698 | which is called by `make-serial-process'. | |
2699 | ||
2700 | :name NAME -- NAME is the name of the process. If NAME is not given, | |
2701 | the value of PORT is used. | |
2702 | ||
2703 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
2704 | with the process. Process output goes at the end of that buffer, | |
2705 | unless you specify an output stream or filter function to handle the | |
2706 | output. If BUFFER is not given, the value of NAME is used. | |
2707 | ||
2708 | :coding CODING -- If CODING is a symbol, it specifies the coding | |
2709 | system used for both reading and writing for this process. If CODING | |
2710 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
2711 | ENCODING is used for writing. | |
2712 | ||
2713 | :noquery BOOL -- When exiting Emacs, query the user if BOOL is nil and | |
2714 | the process is running. If BOOL is not given, query before exiting. | |
2715 | ||
2716 | :stop BOOL -- Start process in the `stopped' state if BOOL is non-nil. | |
2717 | In the stopped state, a serial process does not accept incoming data, | |
2718 | but you can send outgoing data. The stopped state is cleared by | |
2719 | `continue-process' and set by `stop-process'. | |
2720 | ||
2721 | :filter FILTER -- Install FILTER as the process filter. | |
2722 | ||
2723 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. | |
2724 | ||
2725 | :plist PLIST -- Install PLIST as the initial plist of the process. | |
2726 | ||
2727 | :speed | |
2728 | :bytesize | |
2729 | :parity | |
2730 | :stopbits | |
2731 | :flowcontrol | |
2732 | -- These arguments are handled by `serial-process-configure', which is | |
2733 | called by `make-serial-process'. | |
2734 | ||
2735 | The original argument list, possibly modified by later configuration, | |
2736 | is available via the function `process-contact'. | |
2737 | ||
2738 | Examples: | |
2739 | ||
2740 | \(make-serial-process :port "/dev/ttyS0" :speed 9600) | |
2741 | ||
2742 | \(make-serial-process :port "COM1" :speed 115200 :stopbits 2) | |
2743 | ||
2744 | \(make-serial-process :port "\\\\.\\COM13" :speed 1200 :bytesize 7 :parity 'odd) | |
2745 | ||
2746 | \(make-serial-process :port "/dev/tty.BlueConsole-SPP-1" :speed nil) | |
2747 | ||
2748 | usage: (make-serial-process &rest ARGS) */) | |
5842a27b | 2749 | (int nargs, Lisp_Object *args) |
d888760c GM |
2750 | { |
2751 | int fd = -1; | |
2752 | Lisp_Object proc, contact, port; | |
2753 | struct Lisp_Process *p; | |
2754 | struct gcpro gcpro1; | |
2755 | Lisp_Object name, buffer; | |
2756 | Lisp_Object tem, val; | |
2757 | int specpdl_count = -1; | |
2758 | ||
2759 | if (nargs == 0) | |
2760 | return Qnil; | |
2761 | ||
2762 | contact = Flist (nargs, args); | |
2763 | GCPRO1 (contact); | |
2764 | ||
2765 | port = Fplist_get (contact, QCport); | |
2766 | if (NILP (port)) | |
2767 | error ("No port specified"); | |
2768 | CHECK_STRING (port); | |
2769 | ||
2770 | if (NILP (Fplist_member (contact, QCspeed))) | |
2771 | error (":speed not specified"); | |
2772 | if (!NILP (Fplist_get (contact, QCspeed))) | |
2773 | CHECK_NUMBER (Fplist_get (contact, QCspeed)); | |
2774 | ||
2775 | name = Fplist_get (contact, QCname); | |
2776 | if (NILP (name)) | |
2777 | name = port; | |
2778 | CHECK_STRING (name); | |
2779 | proc = make_process (name); | |
2780 | specpdl_count = SPECPDL_INDEX (); | |
2781 | record_unwind_protect (make_serial_process_unwind, proc); | |
2782 | p = XPROCESS (proc); | |
2783 | ||
2784 | fd = serial_open ((char*) SDATA (port)); | |
2785 | p->infd = fd; | |
2786 | p->outfd = fd; | |
2787 | if (fd > max_process_desc) | |
2788 | max_process_desc = fd; | |
2789 | chan_process[fd] = proc; | |
2790 | ||
2791 | buffer = Fplist_get (contact, QCbuffer); | |
2792 | if (NILP (buffer)) | |
2793 | buffer = name; | |
2794 | buffer = Fget_buffer_create (buffer); | |
2795 | p->buffer = buffer; | |
2796 | ||
2797 | p->childp = contact; | |
2798 | p->plist = Fcopy_sequence (Fplist_get (contact, QCplist)); | |
2799 | p->type = Qserial; | |
2800 | p->sentinel = Fplist_get (contact, QCsentinel); | |
2801 | p->filter = Fplist_get (contact, QCfilter); | |
2802 | p->log = Qnil; | |
2803 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) | |
2804 | p->kill_without_query = 1; | |
2805 | if (tem = Fplist_get (contact, QCstop), !NILP (tem)) | |
2806 | p->command = Qt; | |
2807 | p->pty_flag = 0; | |
2808 | ||
2809 | if (!EQ (p->command, Qt)) | |
2810 | { | |
2811 | FD_SET (fd, &input_wait_mask); | |
2812 | FD_SET (fd, &non_keyboard_wait_mask); | |
2813 | } | |
2814 | ||
2815 | if (BUFFERP (buffer)) | |
2816 | { | |
2817 | set_marker_both (p->mark, buffer, | |
2818 | BUF_ZV (XBUFFER (buffer)), | |
2819 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
2820 | } | |
2821 | ||
2822 | tem = Fplist_member (contact, QCcoding); | |
2823 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
2824 | tem = Qnil; | |
2825 | ||
2826 | val = Qnil; | |
2827 | if (!NILP (tem)) | |
2828 | { | |
2829 | val = XCAR (XCDR (tem)); | |
2830 | if (CONSP (val)) | |
2831 | val = XCAR (val); | |
2832 | } | |
2833 | else if (!NILP (Vcoding_system_for_read)) | |
2834 | val = Vcoding_system_for_read; | |
2835 | else if ((!NILP (buffer) && NILP (XBUFFER (buffer)->enable_multibyte_characters)) | |
2836 | || (NILP (buffer) && NILP (buffer_defaults.enable_multibyte_characters))) | |
2837 | val = Qnil; | |
2838 | p->decode_coding_system = val; | |
2839 | ||
2840 | val = Qnil; | |
2841 | if (!NILP (tem)) | |
2842 | { | |
2843 | val = XCAR (XCDR (tem)); | |
2844 | if (CONSP (val)) | |
2845 | val = XCDR (val); | |
2846 | } | |
2847 | else if (!NILP (Vcoding_system_for_write)) | |
2848 | val = Vcoding_system_for_write; | |
2849 | else if ((!NILP (buffer) && NILP (XBUFFER (buffer)->enable_multibyte_characters)) | |
2850 | || (NILP (buffer) && NILP (buffer_defaults.enable_multibyte_characters))) | |
2851 | val = Qnil; | |
2852 | p->encode_coding_system = val; | |
2853 | ||
2854 | setup_process_coding_systems (proc); | |
2855 | p->decoding_buf = make_uninit_string (0); | |
2856 | p->decoding_carryover = 0; | |
2857 | p->encoding_buf = make_uninit_string (0); | |
2858 | p->inherit_coding_system_flag | |
2859 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); | |
2860 | ||
ed3751c8 | 2861 | Fserial_process_configure (nargs, args); |
d888760c GM |
2862 | |
2863 | specpdl_ptr = specpdl + specpdl_count; | |
2864 | ||
2865 | UNGCPRO; | |
2866 | return proc; | |
2867 | } | |
d888760c | 2868 | |
e690ca94 KS |
2869 | /* Create a network stream/datagram client/server process. Treated |
2870 | exactly like a normal process when reading and writing. Primary | |
d0d6b7c5 JB |
2871 | differences are in status display and process deletion. A network |
2872 | connection has no PID; you cannot signal it. All you can do is | |
e690ca94 KS |
2873 | stop/continue it and deactivate/close it via delete-process */ |
2874 | ||
177c0ea7 JB |
2875 | DEFUN ("make-network-process", Fmake_network_process, Smake_network_process, |
2876 | 0, MANY, 0, | |
e690ca94 KS |
2877 | doc: /* Create and return a network server or client process. |
2878 | ||
fa9d4315 | 2879 | In Emacs, network connections are represented by process objects, so |
e690ca94 KS |
2880 | input and output work as for subprocesses and `delete-process' closes |
2881 | a network connection. However, a network process has no process id, | |
d22426e1 | 2882 | it cannot be signaled, and the status codes are different from normal |
e690ca94 KS |
2883 | processes. |
2884 | ||
2885 | Arguments are specified as keyword/argument pairs. The following | |
2886 | arguments are defined: | |
2887 | ||
2888 | :name NAME -- NAME is name for process. It is modified if necessary | |
2889 | to make it unique. | |
2890 | ||
2891 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
2892 | with the process. Process output goes at end of that buffer, unless | |
2893 | you specify an output stream or filter function to handle the output. | |
2894 | BUFFER may be also nil, meaning that this process is not associated | |
2895 | with any buffer. | |
2896 | ||
2897 | :host HOST -- HOST is name of the host to connect to, or its IP | |
2898 | address. The symbol `local' specifies the local host. If specified | |
2899 | for a server process, it must be a valid name or address for the local | |
2900 | host, and only clients connecting to that address will be accepted. | |
2901 | ||
2902 | :service SERVICE -- SERVICE is name of the service desired, or an | |
2903 | integer specifying a port number to connect to. If SERVICE is t, | |
eba25e7c GM |
2904 | a random port number is selected for the server. (If Emacs was |
2905 | compiled with getaddrinfo, a port number can also be specified as a | |
2906 | string, e.g. "80", as well as an integer. This is not portable.) | |
e690ca94 | 2907 | |
9057ff80 | 2908 | :type TYPE -- TYPE is the type of connection. The default (nil) is a |
f00c449b SM |
2909 | stream type connection, `datagram' creates a datagram type connection, |
2910 | `seqpacket' creates a reliable datagram connection. | |
9057ff80 | 2911 | |
e690ca94 | 2912 | :family FAMILY -- FAMILY is the address (and protocol) family for the |
e1652a86 KS |
2913 | service specified by HOST and SERVICE. The default (nil) is to use |
2914 | whatever address family (IPv4 or IPv6) that is defined for the host | |
2915 | and port number specified by HOST and SERVICE. Other address families | |
2916 | supported are: | |
e690ca94 | 2917 | local -- for a local (i.e. UNIX) address specified by SERVICE. |
e1652a86 KS |
2918 | ipv4 -- use IPv4 address family only. |
2919 | ipv6 -- use IPv6 address family only. | |
e690ca94 KS |
2920 | |
2921 | :local ADDRESS -- ADDRESS is the local address used for the connection. | |
2922 | This parameter is ignored when opening a client process. When specified | |
2923 | for a server process, the FAMILY, HOST and SERVICE args are ignored. | |
2924 | ||
2925 | :remote ADDRESS -- ADDRESS is the remote partner's address for the | |
2926 | connection. This parameter is ignored when opening a stream server | |
2927 | process. For a datagram server process, it specifies the initial | |
2928 | setting of the remote datagram address. When specified for a client | |
2929 | process, the FAMILY, HOST, and SERVICE args are ignored. | |
2930 | ||
2931 | The format of ADDRESS depends on the address family: | |
2932 | - An IPv4 address is represented as an vector of integers [A B C D P] | |
2933 | corresponding to numeric IP address A.B.C.D and port number P. | |
2934 | - A local address is represented as a string with the address in the | |
2935 | local address space. | |
2936 | - An "unsupported family" address is represented by a cons (F . AV) | |
2937 | where F is the family number and AV is a vector containing the socket | |
2938 | address data with one element per address data byte. Do not rely on | |
2939 | this format in portable code, as it may depend on implementation | |
2940 | defined constants, data sizes, and data structure alignment. | |
2941 | ||
6b61353c KH |
2942 | :coding CODING -- If CODING is a symbol, it specifies the coding |
2943 | system used for both reading and writing for this process. If CODING | |
2944 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
2945 | ENCODING is used for writing. | |
e690ca94 KS |
2946 | |
2947 | :nowait BOOL -- If BOOL is non-nil for a stream type client process, | |
2948 | return without waiting for the connection to complete; instead, the | |
2949 | sentinel function will be called with second arg matching "open" (if | |
2950 | successful) or "failed" when the connect completes. Default is to use | |
2951 | a blocking connect (i.e. wait) for stream type connections. | |
2952 | ||
2953 | :noquery BOOL -- Query the user unless BOOL is non-nil, and process is | |
f3d9532b | 2954 | running when Emacs is exited. |
e690ca94 KS |
2955 | |
2956 | :stop BOOL -- Start process in the `stopped' state if BOOL non-nil. | |
2957 | In the stopped state, a server process does not accept new | |
2958 | connections, and a client process does not handle incoming traffic. | |
2959 | The stopped state is cleared by `continue-process' and set by | |
2960 | `stop-process'. | |
2961 | ||
2962 | :filter FILTER -- Install FILTER as the process filter. | |
2963 | ||
7392e23c KS |
2964 | :filter-multibyte BOOL -- If BOOL is non-nil, strings given to the |
2965 | process filter are multibyte, otherwise they are unibyte. | |
e0f24100 | 2966 | If this keyword is not specified, the strings are multibyte if |
03f04413 KH |
2967 | `default-enable-multibyte-characters' is non-nil. |
2968 | ||
e690ca94 KS |
2969 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. |
2970 | ||
2971 | :log LOG -- Install LOG as the server process log function. This | |
991234f0 | 2972 | function is called when the server accepts a network connection from a |
e690ca94 KS |
2973 | client. The arguments are SERVER, CLIENT, and MESSAGE, where SERVER |
2974 | is the server process, CLIENT is the new process for the connection, | |
2975 | and MESSAGE is a string. | |
2976 | ||
faa7db08 | 2977 | :plist PLIST -- Install PLIST as the new process' initial plist. |
177c0ea7 | 2978 | |
6b61353c | 2979 | :server QLEN -- if QLEN is non-nil, create a server process for the |
e690ca94 | 2980 | specified FAMILY, SERVICE, and connection type (stream or datagram). |
6b61353c KH |
2981 | If QLEN is an integer, it is used as the max. length of the server's |
2982 | pending connection queue (also known as the backlog); the default | |
2983 | queue length is 5. Default is to create a client process. | |
2984 | ||
2985 | The following network options can be specified for this connection: | |
2986 | ||
2987 | :broadcast BOOL -- Allow send and receive of datagram broadcasts. | |
2988 | :dontroute BOOL -- Only send to directly connected hosts. | |
2989 | :keepalive BOOL -- Send keep-alive messages on network stream. | |
2990 | :linger BOOL or TIMEOUT -- Send queued messages before closing. | |
2991 | :oobinline BOOL -- Place out-of-band data in receive data stream. | |
2992 | :priority INT -- Set protocol defined priority for sent packets. | |
2993 | :reuseaddr BOOL -- Allow reusing a recently used local address | |
2994 | (this is allowed by default for a server process). | |
2995 | :bindtodevice NAME -- bind to interface NAME. Using this may require | |
2996 | special privileges on some systems. | |
2997 | ||
2998 | Consult the relevant system programmer's manual pages for more | |
2999 | information on using these options. | |
3000 | ||
3001 | ||
3002 | A server process will listen for and accept connections from clients. | |
3003 | When a client connection is accepted, a new network process is created | |
3004 | for the connection with the following parameters: | |
e690ca94 | 3005 | |
e690ca94 KS |
3006 | - The client's process name is constructed by concatenating the server |
3007 | process' NAME and a client identification string. | |
3008 | - If the FILTER argument is non-nil, the client process will not get a | |
3009 | separate process buffer; otherwise, the client's process buffer is a newly | |
3010 | created buffer named after the server process' BUFFER name or process | |
177c0ea7 | 3011 | NAME concatenated with the client identification string. |
e690ca94 KS |
3012 | - The connection type and the process filter and sentinel parameters are |
3013 | inherited from the server process' TYPE, FILTER and SENTINEL. | |
3014 | - The client process' contact info is set according to the client's | |
3015 | addressing information (typically an IP address and a port number). | |
faa7db08 | 3016 | - The client process' plist is initialized from the server's plist. |
e690ca94 KS |
3017 | |
3018 | Notice that the FILTER and SENTINEL args are never used directly by | |
3019 | the server process. Also, the BUFFER argument is not used directly by | |
9e9a5792 KS |
3020 | the server process, but via the optional :log function, accepted (and |
3021 | failed) connections may be logged in the server process' buffer. | |
e690ca94 | 3022 | |
365aee82 KS |
3023 | The original argument list, modified with the actual connection |
3024 | information, is available via the `process-contact' function. | |
365aee82 | 3025 | |
fa9d4315 | 3026 | usage: (make-network-process &rest ARGS) */) |
5842a27b | 3027 | (int nargs, Lisp_Object *args) |
d0d6b7c5 JB |
3028 | { |
3029 | Lisp_Object proc; | |
e690ca94 KS |
3030 | Lisp_Object contact; |
3031 | struct Lisp_Process *p; | |
70dbdb36 | 3032 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 3033 | struct addrinfo ai, *res, *lres; |
e1652a86 | 3034 | struct addrinfo hints; |
8ea90aa3 DN |
3035 | const char *portstring; |
3036 | char portbuf[128]; | |
70dbdb36 | 3037 | #else /* HAVE_GETADDRINFO */ |
dd2a17ab KS |
3038 | struct _emacs_addrinfo |
3039 | { | |
3040 | int ai_family; | |
3041 | int ai_socktype; | |
3042 | int ai_protocol; | |
3043 | int ai_addrlen; | |
3044 | struct sockaddr *ai_addr; | |
3045 | struct _emacs_addrinfo *ai_next; | |
3046 | } ai, *res, *lres; | |
418b48fd | 3047 | #endif /* HAVE_GETADDRINFO */ |
e690ca94 KS |
3048 | struct sockaddr_in address_in; |
3049 | #ifdef HAVE_LOCAL_SOCKETS | |
3050 | struct sockaddr_un address_un; | |
3051 | #endif | |
3052 | int port; | |
dd2a17ab KS |
3053 | int ret = 0; |
3054 | int xerrno = 0; | |
418b48fd | 3055 | int s = -1, outch, inch; |
e690ca94 | 3056 | struct gcpro gcpro1; |
aed13378 | 3057 | int count = SPECPDL_INDEX (); |
5684cd6e | 3058 | int count1; |
e690ca94 KS |
3059 | Lisp_Object QCaddress; /* one of QClocal or QCremote */ |
3060 | Lisp_Object tem; | |
3061 | Lisp_Object name, buffer, host, service, address; | |
3062 | Lisp_Object filter, sentinel; | |
3063 | int is_non_blocking_client = 0; | |
6b61353c | 3064 | int is_server = 0, backlog = 5; |
9057ff80 | 3065 | int socktype; |
e690ca94 KS |
3066 | int family = -1; |
3067 | ||
3068 | if (nargs == 0) | |
3069 | return Qnil; | |
dd2a17ab | 3070 | |
e690ca94 KS |
3071 | /* Save arguments for process-contact and clone-process. */ |
3072 | contact = Flist (nargs, args); | |
3073 | GCPRO1 (contact); | |
3074 | ||
bff3ed0a RS |
3075 | #ifdef WINDOWSNT |
3076 | /* Ensure socket support is loaded if available. */ | |
3077 | init_winsock (TRUE); | |
3078 | #endif | |
3079 | ||
9057ff80 KS |
3080 | /* :type TYPE (nil: stream, datagram */ |
3081 | tem = Fplist_get (contact, QCtype); | |
3082 | if (NILP (tem)) | |
3083 | socktype = SOCK_STREAM; | |
3084 | #ifdef DATAGRAM_SOCKETS | |
3085 | else if (EQ (tem, Qdatagram)) | |
3086 | socktype = SOCK_DGRAM; | |
f00c449b SM |
3087 | #endif |
3088 | #ifdef HAVE_SEQPACKET | |
3089 | else if (EQ (tem, Qseqpacket)) | |
3090 | socktype = SOCK_SEQPACKET; | |
e690ca94 | 3091 | #endif |
9057ff80 KS |
3092 | else |
3093 | error ("Unsupported connection type"); | |
e690ca94 KS |
3094 | |
3095 | /* :server BOOL */ | |
3096 | tem = Fplist_get (contact, QCserver); | |
3097 | if (!NILP (tem)) | |
3098 | { | |
75728599 JR |
3099 | /* Don't support network sockets when non-blocking mode is |
3100 | not available, since a blocked Emacs is not useful. */ | |
132d0475 | 3101 | #if !defined(O_NONBLOCK) && !defined(O_NDELAY) |
e690ca94 KS |
3102 | error ("Network servers not supported"); |
3103 | #else | |
3104 | is_server = 1; | |
6b61353c KH |
3105 | if (INTEGERP (tem)) |
3106 | backlog = XINT (tem); | |
e690ca94 KS |
3107 | #endif |
3108 | } | |
3109 | ||
3110 | /* Make QCaddress an alias for :local (server) or :remote (client). */ | |
3111 | QCaddress = is_server ? QClocal : QCremote; | |
3112 | ||
d7e344cd | 3113 | /* :nowait BOOL */ |
84b31826 | 3114 | if (!is_server && socktype != SOCK_DGRAM |
e690ca94 KS |
3115 | && (tem = Fplist_get (contact, QCnowait), !NILP (tem))) |
3116 | { | |
3117 | #ifndef NON_BLOCKING_CONNECT | |
3118 | error ("Non-blocking connect not supported"); | |
3119 | #else | |
3120 | is_non_blocking_client = 1; | |
3121 | #endif | |
3122 | } | |
3123 | ||
3124 | name = Fplist_get (contact, QCname); | |
3125 | buffer = Fplist_get (contact, QCbuffer); | |
3126 | filter = Fplist_get (contact, QCfilter); | |
3127 | sentinel = Fplist_get (contact, QCsentinel); | |
3128 | ||
b7826503 | 3129 | CHECK_STRING (name); |
e690ca94 | 3130 | |
e690ca94 KS |
3131 | /* Initialize addrinfo structure in case we don't use getaddrinfo. */ |
3132 | ai.ai_socktype = socktype; | |
3133 | ai.ai_protocol = 0; | |
3134 | ai.ai_next = NULL; | |
3135 | res = &ai; | |
a319f7c1 | 3136 | |
e690ca94 KS |
3137 | /* :local ADDRESS or :remote ADDRESS */ |
3138 | address = Fplist_get (contact, QCaddress); | |
3139 | if (!NILP (address)) | |
a319f7c1 | 3140 | { |
e690ca94 KS |
3141 | host = service = Qnil; |
3142 | ||
3143 | if (!(ai.ai_addrlen = get_lisp_to_sockaddr_size (address, &family))) | |
3144 | error ("Malformed :address"); | |
3145 | ai.ai_family = family; | |
3146 | ai.ai_addr = alloca (ai.ai_addrlen); | |
3147 | conv_lisp_to_sockaddr (family, address, ai.ai_addr, ai.ai_addrlen); | |
3148 | goto open_socket; | |
a319f7c1 | 3149 | } |
e690ca94 KS |
3150 | |
3151 | /* :family FAMILY -- nil (for Inet), local, or integer. */ | |
3152 | tem = Fplist_get (contact, QCfamily); | |
e1652a86 | 3153 | if (NILP (tem)) |
a319f7c1 | 3154 | { |
87b6ca8d | 3155 | #if defined(HAVE_GETADDRINFO) && defined(AF_INET6) |
e1652a86 KS |
3156 | family = AF_UNSPEC; |
3157 | #else | |
3158 | family = AF_INET; | |
e690ca94 | 3159 | #endif |
a319f7c1 | 3160 | } |
e1652a86 KS |
3161 | #ifdef HAVE_LOCAL_SOCKETS |
3162 | else if (EQ (tem, Qlocal)) | |
3163 | family = AF_LOCAL; | |
3164 | #endif | |
3165 | #ifdef AF_INET6 | |
3166 | else if (EQ (tem, Qipv6)) | |
3167 | family = AF_INET6; | |
3168 | #endif | |
3169 | else if (EQ (tem, Qipv4)) | |
3170 | family = AF_INET; | |
3171 | else if (INTEGERP (tem)) | |
3172 | family = XINT (tem); | |
3173 | else | |
e690ca94 | 3174 | error ("Unknown address family"); |
e1652a86 | 3175 | |
e690ca94 KS |
3176 | ai.ai_family = family; |
3177 | ||
3178 | /* :service SERVICE -- string, integer (port number), or t (random port). */ | |
3179 | service = Fplist_get (contact, QCservice); | |
3180 | ||
66a9f7f4 SM |
3181 | /* :host HOST -- hostname, ip address, or 'local for localhost. */ |
3182 | host = Fplist_get (contact, QChost); | |
3183 | if (!NILP (host)) | |
3184 | { | |
3185 | if (EQ (host, Qlocal)) | |
ba3033ee JB |
3186 | /* Depending on setup, "localhost" may map to different IPv4 and/or |
3187 | IPv6 addresses, so it's better to be explicit. (Bug#6781) */ | |
3188 | host = build_string ("127.0.0.1"); | |
66a9f7f4 SM |
3189 | CHECK_STRING (host); |
3190 | } | |
3191 | ||
e690ca94 KS |
3192 | #ifdef HAVE_LOCAL_SOCKETS |
3193 | if (family == AF_LOCAL) | |
d0d6b7c5 | 3194 | { |
66a9f7f4 SM |
3195 | if (!NILP (host)) |
3196 | { | |
3197 | message (":family local ignores the :host \"%s\" property", | |
3198 | SDATA (host)); | |
3199 | contact = Fplist_put (contact, QChost, Qnil); | |
3200 | host = Qnil; | |
3201 | } | |
b7826503 | 3202 | CHECK_STRING (service); |
72af86bd | 3203 | memset (&address_un, 0, sizeof address_un); |
e690ca94 | 3204 | address_un.sun_family = AF_LOCAL; |
d5db4077 | 3205 | strncpy (address_un.sun_path, SDATA (service), sizeof address_un.sun_path); |
e690ca94 KS |
3206 | ai.ai_addr = (struct sockaddr *) &address_un; |
3207 | ai.ai_addrlen = sizeof address_un; | |
3208 | goto open_socket; | |
d0d6b7c5 | 3209 | } |
e690ca94 | 3210 | #endif |
a319f7c1 | 3211 | |
798b64bb KH |
3212 | /* Slow down polling to every ten seconds. |
3213 | Some kernels have a bug which causes retrying connect to fail | |
3214 | after a connect. Polling can interfere with gethostbyname too. */ | |
3215 | #ifdef POLL_FOR_INPUT | |
84b31826 | 3216 | if (socktype != SOCK_DGRAM) |
e690ca94 KS |
3217 | { |
3218 | record_unwind_protect (unwind_stop_other_atimers, Qnil); | |
3219 | bind_polling_period (10); | |
3220 | } | |
798b64bb KH |
3221 | #endif |
3222 | ||
a319f7c1 | 3223 | #ifdef HAVE_GETADDRINFO |
e690ca94 KS |
3224 | /* If we have a host, use getaddrinfo to resolve both host and service. |
3225 | Otherwise, use getservbyname to lookup the service. */ | |
3226 | if (!NILP (host)) | |
3227 | { | |
3228 | ||
3229 | /* SERVICE can either be a string or int. | |
3230 | Convert to a C string for later use by getaddrinfo. */ | |
3231 | if (EQ (service, Qt)) | |
3232 | portstring = "0"; | |
3233 | else if (INTEGERP (service)) | |
3234 | { | |
3235 | sprintf (portbuf, "%ld", (long) XINT (service)); | |
3236 | portstring = portbuf; | |
3237 | } | |
3238 | else | |
3239 | { | |
3240 | CHECK_STRING (service); | |
d5db4077 | 3241 | portstring = SDATA (service); |
e690ca94 KS |
3242 | } |
3243 | ||
3244 | immediate_quit = 1; | |
3245 | QUIT; | |
3246 | memset (&hints, 0, sizeof (hints)); | |
3247 | hints.ai_flags = 0; | |
e1652a86 | 3248 | hints.ai_family = family; |
e690ca94 KS |
3249 | hints.ai_socktype = socktype; |
3250 | hints.ai_protocol = 0; | |
08116b48 CY |
3251 | |
3252 | #ifdef HAVE_RES_INIT | |
3253 | res_init (); | |
3254 | #endif | |
3255 | ||
d5db4077 | 3256 | ret = getaddrinfo (SDATA (host), portstring, &hints, &res); |
e690ca94 | 3257 | if (ret) |
f6270f62 | 3258 | #ifdef HAVE_GAI_STRERROR |
ed3751c8 | 3259 | error ("%s/%s %s", SDATA (host), portstring, gai_strerror (ret)); |
f6270f62 | 3260 | #else |
63136da6 | 3261 | error ("%s/%s getaddrinfo error %d", SDATA (host), portstring, ret); |
f6270f62 | 3262 | #endif |
e690ca94 | 3263 | immediate_quit = 0; |
a319f7c1 | 3264 | |
e690ca94 KS |
3265 | goto open_socket; |
3266 | } | |
3267 | #endif /* HAVE_GETADDRINFO */ | |
a319f7c1 | 3268 | |
e690ca94 KS |
3269 | /* We end up here if getaddrinfo is not defined, or in case no hostname |
3270 | has been specified (e.g. for a local server process). */ | |
3271 | ||
3272 | if (EQ (service, Qt)) | |
3273 | port = 0; | |
3274 | else if (INTEGERP (service)) | |
3275 | port = htons ((unsigned short) XINT (service)); | |
3276 | else | |
616da37c | 3277 | { |
e690ca94 KS |
3278 | struct servent *svc_info; |
3279 | CHECK_STRING (service); | |
177c0ea7 | 3280 | svc_info = getservbyname (SDATA (service), |
e690ca94 KS |
3281 | (socktype == SOCK_DGRAM ? "udp" : "tcp")); |
3282 | if (svc_info == 0) | |
d5db4077 | 3283 | error ("Unknown service: %s", SDATA (service)); |
e690ca94 KS |
3284 | port = svc_info->s_port; |
3285 | } | |
3286 | ||
72af86bd | 3287 | memset (&address_in, 0, sizeof address_in); |
e690ca94 KS |
3288 | address_in.sin_family = family; |
3289 | address_in.sin_addr.s_addr = INADDR_ANY; | |
3290 | address_in.sin_port = port; | |
3291 | ||
3292 | #ifndef HAVE_GETADDRINFO | |
3293 | if (!NILP (host)) | |
3294 | { | |
3295 | struct hostent *host_info_ptr; | |
3296 | ||
3297 | /* gethostbyname may fail with TRY_AGAIN, but we don't honour that, | |
f3d9532b | 3298 | as it may `hang' Emacs for a very long time. */ |
5d6c2aa3 RS |
3299 | immediate_quit = 1; |
3300 | QUIT; | |
08116b48 CY |
3301 | |
3302 | #ifdef HAVE_RES_INIT | |
3303 | res_init (); | |
3304 | #endif | |
3305 | ||
d5db4077 | 3306 | host_info_ptr = gethostbyname (SDATA (host)); |
5d6c2aa3 | 3307 | immediate_quit = 0; |
177c0ea7 | 3308 | |
e690ca94 KS |
3309 | if (host_info_ptr) |
3310 | { | |
72af86bd AS |
3311 | memcpy (&address_in.sin_addr, host_info_ptr->h_addr, |
3312 | host_info_ptr->h_length); | |
e690ca94 KS |
3313 | family = host_info_ptr->h_addrtype; |
3314 | address_in.sin_family = family; | |
3315 | } | |
3316 | else | |
3317 | /* Attempt to interpret host as numeric inet address */ | |
3318 | { | |
4624371d | 3319 | unsigned long numeric_addr; |
d5db4077 | 3320 | numeric_addr = inet_addr ((char *) SDATA (host)); |
4624371d | 3321 | if (numeric_addr == -1) |
d5db4077 | 3322 | error ("Unknown host \"%s\"", SDATA (host)); |
d0d6b7c5 | 3323 | |
72af86bd AS |
3324 | memcpy (&address_in.sin_addr, &numeric_addr, |
3325 | sizeof (address_in.sin_addr)); | |
e690ca94 | 3326 | } |
d0d6b7c5 | 3327 | |
e690ca94 | 3328 | } |
dd2a17ab | 3329 | #endif /* not HAVE_GETADDRINFO */ |
d0d6b7c5 | 3330 | |
e690ca94 KS |
3331 | ai.ai_family = family; |
3332 | ai.ai_addr = (struct sockaddr *) &address_in; | |
3333 | ai.ai_addrlen = sizeof address_in; | |
3334 | ||
3335 | open_socket: | |
3336 | ||
dd2a17ab | 3337 | /* Do this in case we never enter the for-loop below. */ |
aed13378 | 3338 | count1 = SPECPDL_INDEX (); |
dd2a17ab | 3339 | s = -1; |
457a9bee | 3340 | |
dd2a17ab KS |
3341 | for (lres = res; lres; lres = lres->ai_next) |
3342 | { | |
6b61353c KH |
3343 | int optn, optbits; |
3344 | ||
649dbf36 CY |
3345 | retry_connect: |
3346 | ||
dd2a17ab KS |
3347 | s = socket (lres->ai_family, lres->ai_socktype, lres->ai_protocol); |
3348 | if (s < 0) | |
3349 | { | |
3350 | xerrno = errno; | |
3351 | continue; | |
3352 | } | |
0f2ee0c1 | 3353 | |
e690ca94 KS |
3354 | #ifdef DATAGRAM_SOCKETS |
3355 | if (!is_server && socktype == SOCK_DGRAM) | |
3356 | break; | |
3357 | #endif /* DATAGRAM_SOCKETS */ | |
3358 | ||
dd2a17ab | 3359 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3360 | if (is_non_blocking_client) |
dd2a17ab KS |
3361 | { |
3362 | #ifdef O_NONBLOCK | |
3363 | ret = fcntl (s, F_SETFL, O_NONBLOCK); | |
3364 | #else | |
3365 | ret = fcntl (s, F_SETFL, O_NDELAY); | |
3366 | #endif | |
3367 | if (ret < 0) | |
3368 | { | |
3369 | xerrno = errno; | |
3370 | emacs_close (s); | |
3371 | s = -1; | |
3372 | continue; | |
3373 | } | |
3374 | } | |
3375 | #endif | |
177c0ea7 | 3376 | |
dd2a17ab | 3377 | /* Make us close S if quit. */ |
dd2a17ab KS |
3378 | record_unwind_protect (close_file_unwind, make_number (s)); |
3379 | ||
6b61353c KH |
3380 | /* Parse network options in the arg list. |
3381 | We simply ignore anything which isn't a known option (including other keywords). | |
63136da6 | 3382 | An error is signaled if setting a known option fails. */ |
6b61353c KH |
3383 | for (optn = optbits = 0; optn < nargs-1; optn += 2) |
3384 | optbits |= set_socket_option (s, args[optn], args[optn+1]); | |
3385 | ||
e690ca94 KS |
3386 | if (is_server) |
3387 | { | |
3388 | /* Configure as a server socket. */ | |
6b61353c KH |
3389 | |
3390 | /* SO_REUSEADDR = 1 is default for server sockets; must specify | |
3391 | explicit :reuseaddr key to override this. */ | |
e690ca94 KS |
3392 | #ifdef HAVE_LOCAL_SOCKETS |
3393 | if (family != AF_LOCAL) | |
3394 | #endif | |
6b61353c KH |
3395 | if (!(optbits & (1 << OPIX_REUSEADDR))) |
3396 | { | |
3397 | int optval = 1; | |
3398 | if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval)) | |
3399 | report_file_error ("Cannot set reuse option on server socket", Qnil); | |
3400 | } | |
177c0ea7 | 3401 | |
e690ca94 KS |
3402 | if (bind (s, lres->ai_addr, lres->ai_addrlen)) |
3403 | report_file_error ("Cannot bind server socket", Qnil); | |
3404 | ||
3405 | #ifdef HAVE_GETSOCKNAME | |
3406 | if (EQ (service, Qt)) | |
3407 | { | |
3408 | struct sockaddr_in sa1; | |
3409 | int len1 = sizeof (sa1); | |
3410 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) | |
3411 | { | |
3412 | ((struct sockaddr_in *)(lres->ai_addr))->sin_port = sa1.sin_port; | |
21bd170d | 3413 | service = make_number (ntohs (sa1.sin_port)); |
e690ca94 KS |
3414 | contact = Fplist_put (contact, QCservice, service); |
3415 | } | |
3416 | } | |
3417 | #endif | |
3418 | ||
84b31826 | 3419 | if (socktype != SOCK_DGRAM && listen (s, backlog)) |
e690ca94 KS |
3420 | report_file_error ("Cannot listen on server socket", Qnil); |
3421 | ||
3422 | break; | |
3423 | } | |
3424 | ||
dd2a17ab KS |
3425 | immediate_quit = 1; |
3426 | QUIT; | |
3427 | ||
dd2a17ab KS |
3428 | ret = connect (s, lres->ai_addr, lres->ai_addrlen); |
3429 | xerrno = errno; | |
3430 | ||
dd2a17ab KS |
3431 | if (ret == 0 || xerrno == EISCONN) |
3432 | { | |
dd2a17ab KS |
3433 | /* The unwind-protect will be discarded afterwards. |
3434 | Likewise for immediate_quit. */ | |
3435 | break; | |
3436 | } | |
3437 | ||
3438 | #ifdef NON_BLOCKING_CONNECT | |
3439 | #ifdef EINPROGRESS | |
e690ca94 | 3440 | if (is_non_blocking_client && xerrno == EINPROGRESS) |
dd2a17ab KS |
3441 | break; |
3442 | #else | |
3443 | #ifdef EWOULDBLOCK | |
e690ca94 | 3444 | if (is_non_blocking_client && xerrno == EWOULDBLOCK) |
dd2a17ab KS |
3445 | break; |
3446 | #endif | |
3447 | #endif | |
3448 | #endif | |
649dbf36 CY |
3449 | |
3450 | #ifndef WINDOWSNT | |
cd591dbc HE |
3451 | if (xerrno == EINTR) |
3452 | { | |
3453 | /* Unlike most other syscalls connect() cannot be called | |
3454 | again. (That would return EALREADY.) The proper way to | |
3455 | wait for completion is select(). */ | |
649dbf36 | 3456 | int sc, len; |
cd591dbc HE |
3457 | SELECT_TYPE fdset; |
3458 | retry_select: | |
3459 | FD_ZERO (&fdset); | |
3460 | FD_SET (s, &fdset); | |
3461 | QUIT; | |
3462 | sc = select (s + 1, (SELECT_TYPE *)0, &fdset, (SELECT_TYPE *)0, | |
3463 | (EMACS_TIME *)0); | |
3464 | if (sc == -1) | |
3465 | { | |
649dbf36 | 3466 | if (errno == EINTR) |
cd591dbc | 3467 | goto retry_select; |
649dbf36 | 3468 | else |
cd591dbc HE |
3469 | report_file_error ("select failed", Qnil); |
3470 | } | |
3471 | eassert (sc > 0); | |
649dbf36 CY |
3472 | |
3473 | len = sizeof xerrno; | |
3474 | eassert (FD_ISSET (s, &fdset)); | |
3475 | if (getsockopt (s, SOL_SOCKET, SO_ERROR, &xerrno, &len) == -1) | |
3476 | report_file_error ("getsockopt failed", Qnil); | |
3477 | if (xerrno) | |
3478 | errno = xerrno, report_file_error ("error during connect", Qnil); | |
3479 | else | |
3480 | break; | |
cd591dbc | 3481 | } |
649dbf36 | 3482 | #endif /* !WINDOWSNT */ |
e333e864 | 3483 | |
0f2ee0c1 RS |
3484 | immediate_quit = 0; |
3485 | ||
dd2a17ab | 3486 | /* Discard the unwind protect closing S. */ |
5684cd6e | 3487 | specpdl_ptr = specpdl + count1; |
68c45bf0 | 3488 | emacs_close (s); |
dd2a17ab | 3489 | s = -1; |
649dbf36 CY |
3490 | |
3491 | #ifdef WINDOWSNT | |
3492 | if (xerrno == EINTR) | |
3493 | goto retry_connect; | |
3494 | #endif | |
dd2a17ab | 3495 | } |
457a9bee | 3496 | |
e690ca94 KS |
3497 | if (s >= 0) |
3498 | { | |
3499 | #ifdef DATAGRAM_SOCKETS | |
3500 | if (socktype == SOCK_DGRAM) | |
3501 | { | |
3502 | if (datagram_address[s].sa) | |
3503 | abort (); | |
3504 | datagram_address[s].sa = (struct sockaddr *) xmalloc (lres->ai_addrlen); | |
3505 | datagram_address[s].len = lres->ai_addrlen; | |
3506 | if (is_server) | |
3507 | { | |
3508 | Lisp_Object remote; | |
72af86bd | 3509 | memset (datagram_address[s].sa, 0, lres->ai_addrlen); |
e690ca94 KS |
3510 | if (remote = Fplist_get (contact, QCremote), !NILP (remote)) |
3511 | { | |
3512 | int rfamily, rlen; | |
3513 | rlen = get_lisp_to_sockaddr_size (remote, &rfamily); | |
3514 | if (rfamily == lres->ai_family && rlen == lres->ai_addrlen) | |
3515 | conv_lisp_to_sockaddr (rfamily, remote, | |
3516 | datagram_address[s].sa, rlen); | |
3517 | } | |
3518 | } | |
3519 | else | |
72af86bd | 3520 | memcpy (datagram_address[s].sa, lres->ai_addr, lres->ai_addrlen); |
e690ca94 KS |
3521 | } |
3522 | #endif | |
177c0ea7 | 3523 | contact = Fplist_put (contact, QCaddress, |
e690ca94 | 3524 | conv_sockaddr_to_lisp (lres->ai_addr, lres->ai_addrlen)); |
2185db04 KS |
3525 | #ifdef HAVE_GETSOCKNAME |
3526 | if (!is_server) | |
3527 | { | |
3528 | struct sockaddr_in sa1; | |
3529 | int len1 = sizeof (sa1); | |
3530 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) | |
3531 | contact = Fplist_put (contact, QClocal, | |
d3da34e0 | 3532 | conv_sockaddr_to_lisp ((struct sockaddr *)&sa1, len1)); |
2185db04 KS |
3533 | } |
3534 | #endif | |
e690ca94 KS |
3535 | } |
3536 | ||
54b3b62f YM |
3537 | immediate_quit = 0; |
3538 | ||
dd2a17ab | 3539 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 3540 | if (res != &ai) |
54b3b62f YM |
3541 | { |
3542 | BLOCK_INPUT; | |
3543 | freeaddrinfo (res); | |
3544 | UNBLOCK_INPUT; | |
3545 | } | |
dd2a17ab KS |
3546 | #endif |
3547 | ||
e690ca94 KS |
3548 | /* Discard the unwind protect for closing S, if any. */ |
3549 | specpdl_ptr = specpdl + count1; | |
3550 | ||
3551 | /* Unwind bind_polling_period and request_sigio. */ | |
3552 | unbind_to (count, Qnil); | |
3553 | ||
dd2a17ab KS |
3554 | if (s < 0) |
3555 | { | |
dd2a17ab KS |
3556 | /* If non-blocking got this far - and failed - assume non-blocking is |
3557 | not supported after all. This is probably a wrong assumption, but | |
e690ca94 KS |
3558 | the normal blocking calls to open-network-stream handles this error |
3559 | better. */ | |
3560 | if (is_non_blocking_client) | |
dd2a17ab | 3561 | return Qnil; |
dd2a17ab | 3562 | |
d0d6b7c5 | 3563 | errno = xerrno; |
e690ca94 KS |
3564 | if (is_server) |
3565 | report_file_error ("make server process failed", contact); | |
3566 | else | |
3567 | report_file_error ("make client process failed", contact); | |
d0d6b7c5 | 3568 | } |
44ade2e9 | 3569 | |
d0d6b7c5 | 3570 | inch = s; |
59f23005 | 3571 | outch = s; |
d0d6b7c5 JB |
3572 | |
3573 | if (!NILP (buffer)) | |
3574 | buffer = Fget_buffer_create (buffer); | |
3575 | proc = make_process (name); | |
3576 | ||
3577 | chan_process[inch] = proc; | |
3578 | ||
3579 | #ifdef O_NONBLOCK | |
3580 | fcntl (inch, F_SETFL, O_NONBLOCK); | |
3581 | #else | |
3582 | #ifdef O_NDELAY | |
3583 | fcntl (inch, F_SETFL, O_NDELAY); | |
3584 | #endif | |
3585 | #endif | |
3586 | ||
e690ca94 KS |
3587 | p = XPROCESS (proc); |
3588 | ||
3589 | p->childp = contact; | |
faa7db08 | 3590 | p->plist = Fcopy_sequence (Fplist_get (contact, QCplist)); |
d888760c | 3591 | p->type = Qnetwork; |
177c0ea7 | 3592 | |
e690ca94 KS |
3593 | p->buffer = buffer; |
3594 | p->sentinel = sentinel; | |
3595 | p->filter = filter; | |
3596 | p->log = Fplist_get (contact, QClog); | |
3597 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) | |
60f0fb11 | 3598 | p->kill_without_query = 1; |
e690ca94 KS |
3599 | if ((tem = Fplist_get (contact, QCstop), !NILP (tem))) |
3600 | p->command = Qt; | |
6bfd98e7 | 3601 | p->pid = 0; |
60f0fb11 SM |
3602 | p->infd = inch; |
3603 | p->outfd = outch; | |
84b31826 | 3604 | if (is_server && socktype != SOCK_DGRAM) |
e690ca94 | 3605 | p->status = Qlisten; |
dd2a17ab | 3606 | |
f523e0c3 SM |
3607 | /* Make the process marker point into the process buffer (if any). */ |
3608 | if (BUFFERP (buffer)) | |
3609 | set_marker_both (p->mark, buffer, | |
3610 | BUF_ZV (XBUFFER (buffer)), | |
3611 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
3612 | ||
dd2a17ab | 3613 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3614 | if (is_non_blocking_client) |
dd2a17ab KS |
3615 | { |
3616 | /* We may get here if connect did succeed immediately. However, | |
3617 | in that case, we still need to signal this like a non-blocking | |
3618 | connection. */ | |
e690ca94 | 3619 | p->status = Qconnect; |
dd2a17ab KS |
3620 | if (!FD_ISSET (inch, &connect_wait_mask)) |
3621 | { | |
3622 | FD_SET (inch, &connect_wait_mask); | |
3623 | num_pending_connects++; | |
3624 | } | |
3625 | } | |
3626 | else | |
3627 | #endif | |
e690ca94 KS |
3628 | /* A server may have a client filter setting of Qt, but it must |
3629 | still listen for incoming connects unless it is stopped. */ | |
3630 | if ((!EQ (p->filter, Qt) && !EQ (p->command, Qt)) | |
3631 | || (EQ (p->status, Qlisten) && NILP (p->command))) | |
dd2a17ab KS |
3632 | { |
3633 | FD_SET (inch, &input_wait_mask); | |
3634 | FD_SET (inch, &non_keyboard_wait_mask); | |
3635 | } | |
3636 | ||
7d0e672e RS |
3637 | if (inch > max_process_desc) |
3638 | max_process_desc = inch; | |
d0d6b7c5 | 3639 | |
e690ca94 KS |
3640 | tem = Fplist_member (contact, QCcoding); |
3641 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
3642 | tem = Qnil; /* No error message (too late!). */ | |
3643 | ||
67918941 RS |
3644 | { |
3645 | /* Setup coding systems for communicating with the network stream. */ | |
3646 | struct gcpro gcpro1; | |
3647 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ | |
3648 | Lisp_Object coding_systems = Qt; | |
3649 | Lisp_Object args[5], val; | |
3650 | ||
e690ca94 | 3651 | if (!NILP (tem)) |
6b61353c KH |
3652 | { |
3653 | val = XCAR (XCDR (tem)); | |
3654 | if (CONSP (val)) | |
3655 | val = XCAR (val); | |
3656 | } | |
e690ca94 | 3657 | else if (!NILP (Vcoding_system_for_read)) |
67918941 | 3658 | val = Vcoding_system_for_read; |
41d03b9a GM |
3659 | else if ((!NILP (buffer) && NILP (XBUFFER (buffer)->enable_multibyte_characters)) |
3660 | || (NILP (buffer) && NILP (buffer_defaults.enable_multibyte_characters))) | |
67918941 RS |
3661 | /* We dare not decode end-of-line format by setting VAL to |
3662 | Qraw_text, because the existing Emacs Lisp libraries | |
3663 | assume that they receive bare code including a sequene of | |
3664 | CR LF. */ | |
3665 | val = Qnil; | |
3666 | else | |
3667 | { | |
991234f0 KS |
3668 | if (NILP (host) || NILP (service)) |
3669 | coding_systems = Qnil; | |
3670 | else | |
3671 | { | |
3672 | args[0] = Qopen_network_stream, args[1] = name, | |
3673 | args[2] = buffer, args[3] = host, args[4] = service; | |
3674 | GCPRO1 (proc); | |
3675 | coding_systems = Ffind_operation_coding_system (5, args); | |
3676 | UNGCPRO; | |
3677 | } | |
67918941 | 3678 | if (CONSP (coding_systems)) |
70949dac | 3679 | val = XCAR (coding_systems); |
67918941 | 3680 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3681 | val = XCAR (Vdefault_process_coding_system); |
67918941 RS |
3682 | else |
3683 | val = Qnil; | |
3684 | } | |
e690ca94 | 3685 | p->decode_coding_system = val; |
0fa1789e | 3686 | |
e690ca94 | 3687 | if (!NILP (tem)) |
6b61353c KH |
3688 | { |
3689 | val = XCAR (XCDR (tem)); | |
3690 | if (CONSP (val)) | |
3691 | val = XCDR (val); | |
3692 | } | |
e690ca94 | 3693 | else if (!NILP (Vcoding_system_for_write)) |
67918941 RS |
3694 | val = Vcoding_system_for_write; |
3695 | else if (NILP (current_buffer->enable_multibyte_characters)) | |
3696 | val = Qnil; | |
3697 | else | |
3698 | { | |
3699 | if (EQ (coding_systems, Qt)) | |
3700 | { | |
991234f0 KS |
3701 | if (NILP (host) || NILP (service)) |
3702 | coding_systems = Qnil; | |
3703 | else | |
3704 | { | |
3705 | args[0] = Qopen_network_stream, args[1] = name, | |
3706 | args[2] = buffer, args[3] = host, args[4] = service; | |
3707 | GCPRO1 (proc); | |
3708 | coding_systems = Ffind_operation_coding_system (5, args); | |
3709 | UNGCPRO; | |
3710 | } | |
67918941 RS |
3711 | } |
3712 | if (CONSP (coding_systems)) | |
70949dac | 3713 | val = XCDR (coding_systems); |
67918941 | 3714 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3715 | val = XCDR (Vdefault_process_coding_system); |
67918941 RS |
3716 | else |
3717 | val = Qnil; | |
3718 | } | |
e690ca94 | 3719 | p->encode_coding_system = val; |
67918941 | 3720 | } |
03f04413 | 3721 | setup_process_coding_systems (proc); |
0fa1789e | 3722 | |
e690ca94 | 3723 | p->decoding_buf = make_uninit_string (0); |
60f0fb11 | 3724 | p->decoding_carryover = 0; |
e690ca94 | 3725 | p->encoding_buf = make_uninit_string (0); |
0fa1789e | 3726 | |
e690ca94 | 3727 | p->inherit_coding_system_flag |
e6fca843 | 3728 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); |
52a1b894 | 3729 | |
d0d6b7c5 JB |
3730 | UNGCPRO; |
3731 | return proc; | |
3732 | } | |
d0d6b7c5 | 3733 | |
6b61353c | 3734 | \f |
fce70521 | 3735 | #if defined(HAVE_NET_IF_H) && defined(HAVE_SYS_IOCTL_H) |
6b61353c KH |
3736 | |
3737 | #ifdef SIOCGIFCONF | |
3738 | DEFUN ("network-interface-list", Fnetwork_interface_list, Snetwork_interface_list, 0, 0, 0, | |
3739 | doc: /* Return an alist of all network interfaces and their network address. | |
3740 | Each element is a cons, the car of which is a string containing the | |
3741 | interface name, and the cdr is the network address in internal | |
3742 | format; see the description of ADDRESS in `make-network-process'. */) | |
5842a27b | 3743 | (void) |
6b61353c KH |
3744 | { |
3745 | struct ifconf ifconf; | |
3746 | struct ifreq *ifreqs = NULL; | |
3747 | int ifaces = 0; | |
3748 | int buf_size, s; | |
3749 | Lisp_Object res; | |
3750 | ||
3751 | s = socket (AF_INET, SOCK_STREAM, 0); | |
3752 | if (s < 0) | |
3753 | return Qnil; | |
3754 | ||
3755 | again: | |
3756 | ifaces += 25; | |
ed3751c8 | 3757 | buf_size = ifaces * sizeof (ifreqs[0]); |
6b61353c KH |
3758 | ifreqs = (struct ifreq *)xrealloc(ifreqs, buf_size); |
3759 | if (!ifreqs) | |
3760 | { | |
3761 | close (s); | |
3762 | return Qnil; | |
3763 | } | |
3764 | ||
3765 | ifconf.ifc_len = buf_size; | |
3766 | ifconf.ifc_req = ifreqs; | |
3767 | if (ioctl (s, SIOCGIFCONF, &ifconf)) | |
3768 | { | |
3769 | close (s); | |
3770 | return Qnil; | |
3771 | } | |
3772 | ||
3773 | if (ifconf.ifc_len == buf_size) | |
3774 | goto again; | |
3775 | ||
3776 | close (s); | |
3777 | ifaces = ifconf.ifc_len / sizeof (ifreqs[0]); | |
3778 | ||
3779 | res = Qnil; | |
3780 | while (--ifaces >= 0) | |
3781 | { | |
3782 | struct ifreq *ifq = &ifreqs[ifaces]; | |
3783 | char namebuf[sizeof (ifq->ifr_name) + 1]; | |
3784 | if (ifq->ifr_addr.sa_family != AF_INET) | |
3785 | continue; | |
72af86bd | 3786 | memcpy (namebuf, ifq->ifr_name, sizeof (ifq->ifr_name)); |
6b61353c KH |
3787 | namebuf[sizeof (ifq->ifr_name)] = 0; |
3788 | res = Fcons (Fcons (build_string (namebuf), | |
3789 | conv_sockaddr_to_lisp (&ifq->ifr_addr, | |
3790 | sizeof (struct sockaddr))), | |
3791 | res); | |
3792 | } | |
3793 | ||
3794 | return res; | |
3795 | } | |
3796 | #endif /* SIOCGIFCONF */ | |
3797 | ||
3798 | #if defined(SIOCGIFADDR) || defined(SIOCGIFHWADDR) || defined(SIOCGIFFLAGS) | |
3799 | ||
3800 | struct ifflag_def { | |
3801 | int flag_bit; | |
91433552 | 3802 | const char *flag_sym; |
6b61353c KH |
3803 | }; |
3804 | ||
91433552 | 3805 | static const struct ifflag_def ifflag_table[] = { |
6b61353c KH |
3806 | #ifdef IFF_UP |
3807 | { IFF_UP, "up" }, | |
3808 | #endif | |
3809 | #ifdef IFF_BROADCAST | |
3810 | { IFF_BROADCAST, "broadcast" }, | |
3811 | #endif | |
3812 | #ifdef IFF_DEBUG | |
3813 | { IFF_DEBUG, "debug" }, | |
3814 | #endif | |
3815 | #ifdef IFF_LOOPBACK | |
3816 | { IFF_LOOPBACK, "loopback" }, | |
3817 | #endif | |
3818 | #ifdef IFF_POINTOPOINT | |
3819 | { IFF_POINTOPOINT, "pointopoint" }, | |
3820 | #endif | |
3821 | #ifdef IFF_RUNNING | |
3822 | { IFF_RUNNING, "running" }, | |
3823 | #endif | |
3824 | #ifdef IFF_NOARP | |
3825 | { IFF_NOARP, "noarp" }, | |
3826 | #endif | |
3827 | #ifdef IFF_PROMISC | |
3828 | { IFF_PROMISC, "promisc" }, | |
3829 | #endif | |
3830 | #ifdef IFF_NOTRAILERS | |
3831 | { IFF_NOTRAILERS, "notrailers" }, | |
3832 | #endif | |
3833 | #ifdef IFF_ALLMULTI | |
3834 | { IFF_ALLMULTI, "allmulti" }, | |
3835 | #endif | |
3836 | #ifdef IFF_MASTER | |
3837 | { IFF_MASTER, "master" }, | |
3838 | #endif | |
3839 | #ifdef IFF_SLAVE | |
3840 | { IFF_SLAVE, "slave" }, | |
3841 | #endif | |
3842 | #ifdef IFF_MULTICAST | |
3843 | { IFF_MULTICAST, "multicast" }, | |
3844 | #endif | |
3845 | #ifdef IFF_PORTSEL | |
3846 | { IFF_PORTSEL, "portsel" }, | |
3847 | #endif | |
3848 | #ifdef IFF_AUTOMEDIA | |
3849 | { IFF_AUTOMEDIA, "automedia" }, | |
3850 | #endif | |
3851 | #ifdef IFF_DYNAMIC | |
3852 | { IFF_DYNAMIC, "dynamic" }, | |
e1652a86 | 3853 | #endif |
2026418c YM |
3854 | #ifdef IFF_OACTIVE |
3855 | { IFF_OACTIVE, "oactive" }, /* OpenBSD: transmission in progress */ | |
e1652a86 KS |
3856 | #endif |
3857 | #ifdef IFF_SIMPLEX | |
3858 | { IFF_SIMPLEX, "simplex" }, /* OpenBSD: can't hear own transmissions */ | |
3859 | #endif | |
3860 | #ifdef IFF_LINK0 | |
3861 | { IFF_LINK0, "link0" }, /* OpenBSD: per link layer defined bit */ | |
3862 | #endif | |
3863 | #ifdef IFF_LINK1 | |
3864 | { IFF_LINK1, "link1" }, /* OpenBSD: per link layer defined bit */ | |
3865 | #endif | |
3866 | #ifdef IFF_LINK2 | |
3867 | { IFF_LINK2, "link2" }, /* OpenBSD: per link layer defined bit */ | |
6b61353c KH |
3868 | #endif |
3869 | { 0, 0 } | |
3870 | }; | |
3871 | ||
3872 | DEFUN ("network-interface-info", Fnetwork_interface_info, Snetwork_interface_info, 1, 1, 0, | |
3873 | doc: /* Return information about network interface named IFNAME. | |
3874 | The return value is a list (ADDR BCAST NETMASK HWADDR FLAGS), | |
3875 | where ADDR is the layer 3 address, BCAST is the layer 3 broadcast address, | |
3876 | NETMASK is the layer 3 network mask, HWADDR is the layer 2 addres, and | |
3877 | FLAGS is the current flags of the interface. */) | |
5842a27b | 3878 | (Lisp_Object ifname) |
6b61353c KH |
3879 | { |
3880 | struct ifreq rq; | |
3881 | Lisp_Object res = Qnil; | |
3882 | Lisp_Object elt; | |
3883 | int s; | |
3884 | int any = 0; | |
3885 | ||
3886 | CHECK_STRING (ifname); | |
3887 | ||
72af86bd | 3888 | memset (rq.ifr_name, 0, sizeof rq.ifr_name); |
6b61353c KH |
3889 | strncpy (rq.ifr_name, SDATA (ifname), sizeof (rq.ifr_name)); |
3890 | ||
3891 | s = socket (AF_INET, SOCK_STREAM, 0); | |
3892 | if (s < 0) | |
3893 | return Qnil; | |
3894 | ||
3895 | elt = Qnil; | |
3896 | #if defined(SIOCGIFFLAGS) && defined(HAVE_STRUCT_IFREQ_IFR_FLAGS) | |
3897 | if (ioctl (s, SIOCGIFFLAGS, &rq) == 0) | |
3898 | { | |
3899 | int flags = rq.ifr_flags; | |
91433552 | 3900 | const struct ifflag_def *fp; |
6b61353c KH |
3901 | int fnum; |
3902 | ||
3903 | any++; | |
82a80058 | 3904 | for (fp = ifflag_table; flags != 0 && fp->flag_sym; fp++) |
6b61353c KH |
3905 | { |
3906 | if (flags & fp->flag_bit) | |
3907 | { | |
3908 | elt = Fcons (intern (fp->flag_sym), elt); | |
3909 | flags -= fp->flag_bit; | |
3910 | } | |
3911 | } | |
3912 | for (fnum = 0; flags && fnum < 32; fnum++) | |
3913 | { | |
3914 | if (flags & (1 << fnum)) | |
3915 | { | |
3916 | elt = Fcons (make_number (fnum), elt); | |
3917 | } | |
3918 | } | |
3919 | } | |
3920 | #endif | |
3921 | res = Fcons (elt, res); | |
3922 | ||
3923 | elt = Qnil; | |
3924 | #if defined(SIOCGIFHWADDR) && defined(HAVE_STRUCT_IFREQ_IFR_HWADDR) | |
3925 | if (ioctl (s, SIOCGIFHWADDR, &rq) == 0) | |
3926 | { | |
3927 | Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil); | |
3928 | register struct Lisp_Vector *p = XVECTOR (hwaddr); | |
3929 | int n; | |
3930 | ||
3931 | any++; | |
3932 | for (n = 0; n < 6; n++) | |
3933 | p->contents[n] = make_number (((unsigned char *)&rq.ifr_hwaddr.sa_data[0])[n]); | |
3934 | elt = Fcons (make_number (rq.ifr_hwaddr.sa_family), hwaddr); | |
3935 | } | |
3936 | #endif | |
3937 | res = Fcons (elt, res); | |
3938 | ||
3939 | elt = Qnil; | |
2026418c | 3940 | #if defined(SIOCGIFNETMASK) && (defined(HAVE_STRUCT_IFREQ_IFR_NETMASK) || defined(HAVE_STRUCT_IFREQ_IFR_ADDR)) |
6b61353c KH |
3941 | if (ioctl (s, SIOCGIFNETMASK, &rq) == 0) |
3942 | { | |
3943 | any++; | |
2026418c | 3944 | #ifdef HAVE_STRUCT_IFREQ_IFR_NETMASK |
6b61353c | 3945 | elt = conv_sockaddr_to_lisp (&rq.ifr_netmask, sizeof (rq.ifr_netmask)); |
2026418c YM |
3946 | #else |
3947 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); | |
3948 | #endif | |
6b61353c KH |
3949 | } |
3950 | #endif | |
3951 | res = Fcons (elt, res); | |
3952 | ||
3953 | elt = Qnil; | |
3954 | #if defined(SIOCGIFBRDADDR) && defined(HAVE_STRUCT_IFREQ_IFR_BROADADDR) | |
3955 | if (ioctl (s, SIOCGIFBRDADDR, &rq) == 0) | |
3956 | { | |
3957 | any++; | |
3958 | elt = conv_sockaddr_to_lisp (&rq.ifr_broadaddr, sizeof (rq.ifr_broadaddr)); | |
3959 | } | |
3960 | #endif | |
3961 | res = Fcons (elt, res); | |
3962 | ||
3963 | elt = Qnil; | |
3964 | #if defined(SIOCGIFADDR) && defined(HAVE_STRUCT_IFREQ_IFR_ADDR) | |
3965 | if (ioctl (s, SIOCGIFADDR, &rq) == 0) | |
3966 | { | |
3967 | any++; | |
3968 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); | |
3969 | } | |
3970 | #endif | |
3971 | res = Fcons (elt, res); | |
3972 | ||
3973 | close (s); | |
3974 | ||
3975 | return any ? res : Qnil; | |
3976 | } | |
3977 | #endif | |
fce70521 | 3978 | #endif /* defined(HAVE_NET_IF_H) && defined(HAVE_SYS_IOCTL_H) */ |
6b61353c | 3979 | |
04391069 RS |
3980 | /* Turn off input and output for process PROC. */ |
3981 | ||
6b53bb85 | 3982 | void |
d3da34e0 | 3983 | deactivate_process (Lisp_Object proc) |
d0d6b7c5 JB |
3984 | { |
3985 | register int inchannel, outchannel; | |
3986 | register struct Lisp_Process *p = XPROCESS (proc); | |
3987 | ||
60f0fb11 SM |
3988 | inchannel = p->infd; |
3989 | outchannel = p->outfd; | |
d0d6b7c5 | 3990 | |
6b61353c | 3991 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 3992 | if (p->read_output_delay > 0) |
6b61353c KH |
3993 | { |
3994 | if (--process_output_delay_count < 0) | |
3995 | process_output_delay_count = 0; | |
60f0fb11 SM |
3996 | p->read_output_delay = 0; |
3997 | p->read_output_skip = 0; | |
6b61353c KH |
3998 | } |
3999 | #endif | |
f3d9532b | 4000 | |
a9f2c884 | 4001 | if (inchannel >= 0) |
d0d6b7c5 JB |
4002 | { |
4003 | /* Beware SIGCHLD hereabouts. */ | |
4004 | flush_pending_output (inchannel); | |
68c45bf0 | 4005 | emacs_close (inchannel); |
a9f2c884 | 4006 | if (outchannel >= 0 && outchannel != inchannel) |
68c45bf0 | 4007 | emacs_close (outchannel); |
d0d6b7c5 | 4008 | |
60f0fb11 SM |
4009 | p->infd = -1; |
4010 | p->outfd = -1; | |
e690ca94 KS |
4011 | #ifdef DATAGRAM_SOCKETS |
4012 | if (DATAGRAM_CHAN_P (inchannel)) | |
4013 | { | |
4014 | xfree (datagram_address[inchannel].sa); | |
4015 | datagram_address[inchannel].sa = 0; | |
4016 | datagram_address[inchannel].len = 0; | |
4017 | } | |
4018 | #endif | |
d0d6b7c5 JB |
4019 | chan_process[inchannel] = Qnil; |
4020 | FD_CLR (inchannel, &input_wait_mask); | |
a69281ff | 4021 | FD_CLR (inchannel, &non_keyboard_wait_mask); |
bad49fc7 | 4022 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
4023 | if (FD_ISSET (inchannel, &connect_wait_mask)) |
4024 | { | |
4025 | FD_CLR (inchannel, &connect_wait_mask); | |
4026 | if (--num_pending_connects < 0) | |
4027 | abort (); | |
4028 | } | |
bad49fc7 | 4029 | #endif |
7d0e672e RS |
4030 | if (inchannel == max_process_desc) |
4031 | { | |
4032 | int i; | |
4033 | /* We just closed the highest-numbered process input descriptor, | |
4034 | so recompute the highest-numbered one now. */ | |
4035 | max_process_desc = 0; | |
4036 | for (i = 0; i < MAXDESC; i++) | |
4037 | if (!NILP (chan_process[i])) | |
4038 | max_process_desc = i; | |
4039 | } | |
d0d6b7c5 JB |
4040 | } |
4041 | } | |
4042 | ||
d0d6b7c5 JB |
4043 | \f |
4044 | DEFUN ("accept-process-output", Faccept_process_output, Saccept_process_output, | |
107ed38d | 4045 | 0, 4, 0, |
fdb82f93 PJ |
4046 | doc: /* Allow any pending output from subprocesses to be read by Emacs. |
4047 | It is read into the process' buffers or given to their filter functions. | |
4048 | Non-nil arg PROCESS means do not return until some output has been received | |
4049 | from PROCESS. | |
5088da42 | 4050 | |
2a7bb882 MR |
4051 | Non-nil second arg SECONDS and third arg MILLISEC are number of seconds |
4052 | and milliseconds to wait; return after that much time whether or not | |
4053 | there is any subprocess output. If SECONDS is a floating point number, | |
5088da42 | 4054 | it specifies a fractional number of seconds to wait. |
891bd142 | 4055 | The MILLISEC argument is obsolete and should be avoided. |
5088da42 | 4056 | |
107ed38d KS |
4057 | If optional fourth arg JUST-THIS-ONE is non-nil, only accept output |
4058 | from PROCESS, suspending reading output from other processes. | |
4059 | If JUST-THIS-ONE is an integer, don't run any timers either. | |
e0f24100 | 4060 | Return non-nil if we received any output before the timeout expired. */) |
5842a27b | 4061 | (register Lisp_Object process, Lisp_Object seconds, Lisp_Object millisec, Lisp_Object just_this_one) |
d0d6b7c5 | 4062 | { |
5088da42 | 4063 | int secs, usecs = 0; |
d0d6b7c5 | 4064 | |
0748d150 | 4065 | if (! NILP (process)) |
b7826503 | 4066 | CHECK_PROCESS (process); |
107ed38d KS |
4067 | else |
4068 | just_this_one = Qnil; | |
0748d150 | 4069 | |
891bd142 SM |
4070 | if (!NILP (millisec)) |
4071 | { /* Obsolete calling convention using integers rather than floats. */ | |
4072 | CHECK_NUMBER (millisec); | |
4073 | if (NILP (seconds)) | |
4074 | seconds = make_float (XINT (millisec) / 1000.0); | |
4075 | else | |
4076 | { | |
4077 | CHECK_NUMBER (seconds); | |
4078 | seconds = make_float (XINT (millisec) / 1000.0 + XINT (seconds)); | |
4079 | } | |
4080 | } | |
4081 | ||
5088da42 | 4082 | if (!NILP (seconds)) |
d0d6b7c5 | 4083 | { |
5088da42 KS |
4084 | if (INTEGERP (seconds)) |
4085 | secs = XINT (seconds); | |
4086 | else if (FLOATP (seconds)) | |
4087 | { | |
4088 | double timeout = XFLOAT_DATA (seconds); | |
4089 | secs = (int) timeout; | |
4090 | usecs = (int) ((timeout - (double) secs) * 1000000); | |
4091 | } | |
4092 | else | |
4093 | wrong_type_argument (Qnumberp, seconds); | |
d0d6b7c5 | 4094 | |
5088da42 KS |
4095 | if (secs < 0 || (secs == 0 && usecs == 0)) |
4096 | secs = -1, usecs = 0; | |
d0d6b7c5 JB |
4097 | } |
4098 | else | |
5088da42 | 4099 | secs = NILP (process) ? -1 : 0; |
d0d6b7c5 JB |
4100 | |
4101 | return | |
5088da42 | 4102 | (wait_reading_process_output (secs, usecs, 0, 0, |
214d6069 KS |
4103 | Qnil, |
4104 | !NILP (process) ? XPROCESS (process) : NULL, | |
4105 | NILP (just_this_one) ? 0 : | |
4106 | !INTEGERP (just_this_one) ? 1 : -1) | |
d0d6b7c5 JB |
4107 | ? Qt : Qnil); |
4108 | } | |
4109 | ||
e690ca94 KS |
4110 | /* Accept a connection for server process SERVER on CHANNEL. */ |
4111 | ||
4112 | static int connect_counter = 0; | |
4113 | ||
4114 | static void | |
d3da34e0 | 4115 | server_accept_connection (Lisp_Object server, int channel) |
e690ca94 KS |
4116 | { |
4117 | Lisp_Object proc, caller, name, buffer; | |
4118 | Lisp_Object contact, host, service; | |
4119 | struct Lisp_Process *ps= XPROCESS (server); | |
4120 | struct Lisp_Process *p; | |
4121 | int s; | |
4122 | union u_sockaddr { | |
4123 | struct sockaddr sa; | |
4124 | struct sockaddr_in in; | |
e1652a86 KS |
4125 | #ifdef AF_INET6 |
4126 | struct sockaddr_in6 in6; | |
4127 | #endif | |
e690ca94 KS |
4128 | #ifdef HAVE_LOCAL_SOCKETS |
4129 | struct sockaddr_un un; | |
4130 | #endif | |
4131 | } saddr; | |
4132 | int len = sizeof saddr; | |
4133 | ||
4134 | s = accept (channel, &saddr.sa, &len); | |
4135 | ||
4136 | if (s < 0) | |
4137 | { | |
4138 | int code = errno; | |
4139 | ||
4140 | if (code == EAGAIN) | |
4141 | return; | |
4142 | #ifdef EWOULDBLOCK | |
4143 | if (code == EWOULDBLOCK) | |
4144 | return; | |
4145 | #endif | |
4146 | ||
4147 | if (!NILP (ps->log)) | |
4148 | call3 (ps->log, server, Qnil, | |
4149 | concat3 (build_string ("accept failed with code"), | |
4150 | Fnumber_to_string (make_number (code)), | |
4151 | build_string ("\n"))); | |
4152 | return; | |
4153 | } | |
4154 | ||
4155 | connect_counter++; | |
4156 | ||
4157 | /* Setup a new process to handle the connection. */ | |
4158 | ||
4159 | /* Generate a unique identification of the caller, and build contact | |
4160 | information for this process. */ | |
4161 | host = Qt; | |
4162 | service = Qnil; | |
4163 | switch (saddr.sa.sa_family) | |
4164 | { | |
4165 | case AF_INET: | |
4166 | { | |
4167 | Lisp_Object args[5]; | |
4168 | unsigned char *ip = (unsigned char *)&saddr.in.sin_addr.s_addr; | |
4169 | args[0] = build_string ("%d.%d.%d.%d"); | |
4170 | args[1] = make_number (*ip++); | |
4171 | args[2] = make_number (*ip++); | |
4172 | args[3] = make_number (*ip++); | |
4173 | args[4] = make_number (*ip++); | |
4174 | host = Fformat (5, args); | |
4175 | service = make_number (ntohs (saddr.in.sin_port)); | |
4176 | ||
4177 | args[0] = build_string (" <%s:%d>"); | |
4178 | args[1] = host; | |
4179 | args[2] = service; | |
4180 | caller = Fformat (3, args); | |
4181 | } | |
4182 | break; | |
4183 | ||
e1652a86 KS |
4184 | #ifdef AF_INET6 |
4185 | case AF_INET6: | |
4186 | { | |
4187 | Lisp_Object args[9]; | |
4188 | uint16_t *ip6 = (uint16_t *)&saddr.in6.sin6_addr; | |
4189 | int i; | |
4190 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
4191 | for (i = 0; i < 8; i++) | |
ed3751c8 | 4192 | args[i+1] = make_number (ntohs (ip6[i])); |
e1652a86 KS |
4193 | host = Fformat (9, args); |
4194 | service = make_number (ntohs (saddr.in.sin_port)); | |
4195 | ||
4196 | args[0] = build_string (" <[%s]:%d>"); | |
4197 | args[1] = host; | |
4198 | args[2] = service; | |
4199 | caller = Fformat (3, args); | |
4200 | } | |
4201 | break; | |
4202 | #endif | |
4203 | ||
e690ca94 KS |
4204 | #ifdef HAVE_LOCAL_SOCKETS |
4205 | case AF_LOCAL: | |
4206 | #endif | |
4207 | default: | |
4208 | caller = Fnumber_to_string (make_number (connect_counter)); | |
eef60308 | 4209 | caller = concat3 (build_string (" <"), caller, build_string (">")); |
e690ca94 KS |
4210 | break; |
4211 | } | |
4212 | ||
4213 | /* Create a new buffer name for this process if it doesn't have a | |
4214 | filter. The new buffer name is based on the buffer name or | |
4215 | process name of the server process concatenated with the caller | |
4216 | identification. */ | |
4217 | ||
4218 | if (!NILP (ps->filter) && !EQ (ps->filter, Qt)) | |
4219 | buffer = Qnil; | |
4220 | else | |
4221 | { | |
4222 | buffer = ps->buffer; | |
4223 | if (!NILP (buffer)) | |
4224 | buffer = Fbuffer_name (buffer); | |
4225 | else | |
4226 | buffer = ps->name; | |
4227 | if (!NILP (buffer)) | |
4228 | { | |
4229 | buffer = concat2 (buffer, caller); | |
4230 | buffer = Fget_buffer_create (buffer); | |
4231 | } | |
4232 | } | |
4233 | ||
4234 | /* Generate a unique name for the new server process. Combine the | |
4235 | server process name with the caller identification. */ | |
4236 | ||
4237 | name = concat2 (ps->name, caller); | |
4238 | proc = make_process (name); | |
4239 | ||
4240 | chan_process[s] = proc; | |
4241 | ||
4242 | #ifdef O_NONBLOCK | |
4243 | fcntl (s, F_SETFL, O_NONBLOCK); | |
4244 | #else | |
4245 | #ifdef O_NDELAY | |
4246 | fcntl (s, F_SETFL, O_NDELAY); | |
4247 | #endif | |
4248 | #endif | |
4249 | ||
4250 | p = XPROCESS (proc); | |
4251 | ||
4252 | /* Build new contact information for this setup. */ | |
4253 | contact = Fcopy_sequence (ps->childp); | |
4254 | contact = Fplist_put (contact, QCserver, Qnil); | |
4255 | contact = Fplist_put (contact, QChost, host); | |
4256 | if (!NILP (service)) | |
4257 | contact = Fplist_put (contact, QCservice, service); | |
177c0ea7 | 4258 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
4259 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4260 | #ifdef HAVE_GETSOCKNAME | |
4261 | len = sizeof saddr; | |
2185db04 | 4262 | if (getsockname (s, &saddr.sa, &len) == 0) |
177c0ea7 | 4263 | contact = Fplist_put (contact, QClocal, |
e690ca94 KS |
4264 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4265 | #endif | |
4266 | ||
4267 | p->childp = contact; | |
faa7db08 | 4268 | p->plist = Fcopy_sequence (ps->plist); |
d888760c | 4269 | p->type = Qnetwork; |
ac4a7584 | 4270 | |
e690ca94 KS |
4271 | p->buffer = buffer; |
4272 | p->sentinel = ps->sentinel; | |
4273 | p->filter = ps->filter; | |
4274 | p->command = Qnil; | |
6bfd98e7 | 4275 | p->pid = 0; |
60f0fb11 SM |
4276 | p->infd = s; |
4277 | p->outfd = s; | |
e690ca94 KS |
4278 | p->status = Qrun; |
4279 | ||
4280 | /* Client processes for accepted connections are not stopped initially. */ | |
4281 | if (!EQ (p->filter, Qt)) | |
4282 | { | |
4283 | FD_SET (s, &input_wait_mask); | |
4284 | FD_SET (s, &non_keyboard_wait_mask); | |
4285 | } | |
4286 | ||
4287 | if (s > max_process_desc) | |
4288 | max_process_desc = s; | |
4289 | ||
177c0ea7 | 4290 | /* Setup coding system for new process based on server process. |
e690ca94 KS |
4291 | This seems to be the proper thing to do, as the coding system |
4292 | of the new process should reflect the settings at the time the | |
4293 | server socket was opened; not the current settings. */ | |
4294 | ||
4295 | p->decode_coding_system = ps->decode_coding_system; | |
4296 | p->encode_coding_system = ps->encode_coding_system; | |
03f04413 | 4297 | setup_process_coding_systems (proc); |
e690ca94 KS |
4298 | |
4299 | p->decoding_buf = make_uninit_string (0); | |
60f0fb11 | 4300 | p->decoding_carryover = 0; |
e690ca94 | 4301 | p->encoding_buf = make_uninit_string (0); |
e690ca94 KS |
4302 | |
4303 | p->inherit_coding_system_flag | |
60f0fb11 | 4304 | = (NILP (buffer) ? 0 : ps->inherit_coding_system_flag); |
e690ca94 KS |
4305 | |
4306 | if (!NILP (ps->log)) | |
4307 | call3 (ps->log, server, proc, | |
4308 | concat3 (build_string ("accept from "), | |
4309 | (STRINGP (host) ? host : build_string ("-")), | |
4310 | build_string ("\n"))); | |
4311 | ||
bed9664a | 4312 | if (!NILP (p->sentinel)) |
177c0ea7 | 4313 | exec_sentinel (proc, |
e690ca94 KS |
4314 | concat3 (build_string ("open from "), |
4315 | (STRINGP (host) ? host : build_string ("-")), | |
4316 | build_string ("\n"))); | |
4317 | } | |
4318 | ||
d0d6b7c5 JB |
4319 | /* This variable is different from waiting_for_input in keyboard.c. |
4320 | It is used to communicate to a lisp process-filter/sentinel (via the | |
f3d9532b | 4321 | function Fwaiting_for_user_input_p below) whether Emacs was waiting |
d0d6b7c5 JB |
4322 | for user-input when that process-filter was called. |
4323 | waiting_for_input cannot be used as that is by definition 0 when | |
d430ee71 RS |
4324 | lisp code is being evalled. |
4325 | This is also used in record_asynch_buffer_change. | |
4326 | For that purpose, this must be 0 | |
214d6069 | 4327 | when not inside wait_reading_process_output. */ |
d0d6b7c5 JB |
4328 | static int waiting_for_user_input_p; |
4329 | ||
2beb96f9 | 4330 | static Lisp_Object |
d3da34e0 | 4331 | wait_reading_process_output_unwind (Lisp_Object data) |
2beb96f9 KS |
4332 | { |
4333 | waiting_for_user_input_p = XINT (data); | |
4334 | return Qnil; | |
4335 | } | |
4336 | ||
c573ae8e | 4337 | /* This is here so breakpoints can be put on it. */ |
dfcf069d | 4338 | static void |
d3da34e0 | 4339 | wait_reading_process_output_1 (void) |
c573ae8e RS |
4340 | { |
4341 | } | |
4342 | ||
e1e541bd | 4343 | /* Use a wrapper around select to work around a bug in gdb 5.3. |
96c834b6 | 4344 | Normally, the wrapper is optimized away by inlining. |
e1e541bd KS |
4345 | |
4346 | If emacs is stopped inside select, the gdb backtrace doesn't | |
4347 | show the function which called select, so it is practically | |
4348 | impossible to step through wait_reading_process_output. */ | |
4349 | ||
4350 | #ifndef select | |
4351 | static INLINE int | |
d3da34e0 | 4352 | select_wrapper (int n, fd_set *rfd, fd_set *wfd, fd_set *xfd, struct timeval *tmo) |
e1e541bd KS |
4353 | { |
4354 | return select (n, rfd, wfd, xfd, tmo); | |
4355 | } | |
4356 | #define select select_wrapper | |
4357 | #endif | |
4358 | ||
d0d6b7c5 JB |
4359 | /* Read and dispose of subprocess output while waiting for timeout to |
4360 | elapse and/or keyboard input to be available. | |
4361 | ||
de6fd4b9 | 4362 | TIME_LIMIT is: |
d0d6b7c5 JB |
4363 | timeout in seconds, or |
4364 | zero for no limit, or | |
4365 | -1 means gobble data immediately available but don't wait for any. | |
4366 | ||
de6fd4b9 RS |
4367 | MICROSECS is: |
4368 | an additional duration to wait, measured in microseconds. | |
4369 | If this is nonzero and time_limit is 0, then the timeout | |
4370 | consists of MICROSECS only. | |
6e4f3667 | 4371 | |
de6fd4b9 | 4372 | READ_KBD is a lisp value: |
d0d6b7c5 JB |
4373 | 0 to ignore keyboard input, or |
4374 | 1 to return when input is available, or | |
84aa3ace | 4375 | -1 meaning caller will actually read the input, so don't throw to |
d0d6b7c5 | 4376 | the quit handler, or |
d0d6b7c5 | 4377 | |
de6fd4b9 | 4378 | DO_DISPLAY != 0 means redisplay should be done to show subprocess |
107ed38d | 4379 | output that arrives. |
d0d6b7c5 | 4380 | |
b89a415a KS |
4381 | If WAIT_FOR_CELL is a cons cell, wait until its car is non-nil |
4382 | (and gobble terminal input into the buffer if any arrives). | |
d0d6b7c5 | 4383 | |
b89a415a | 4384 | If WAIT_PROC is specified, wait until something arrives from that |
e0f24100 | 4385 | process. The return value is true if we read some input from |
b89a415a KS |
4386 | that process. |
4387 | ||
4388 | If JUST_WAIT_PROC is non-nil, handle only output from WAIT_PROC | |
4389 | (suspending output from other processes). A negative value | |
4390 | means don't run any timers either. | |
4391 | ||
e0f24100 | 4392 | If WAIT_PROC is specified, then the function returns true if we |
b89a415a | 4393 | received input from that process before the timeout elapsed. |
e0f24100 | 4394 | Otherwise, return true if we received input from any process. */ |
d0d6b7c5 | 4395 | |
dfcf069d | 4396 | int |
d5a3eaaf AS |
4397 | wait_reading_process_output (int time_limit, int microsecs, int read_kbd, |
4398 | int do_display, | |
4399 | Lisp_Object wait_for_cell, | |
4400 | struct Lisp_Process *wait_proc, int just_wait_proc) | |
d0d6b7c5 | 4401 | { |
41d03b9a | 4402 | register int channel, nfds; |
855448dc | 4403 | SELECT_TYPE Available; |
bad49fc7 | 4404 | #ifdef NON_BLOCKING_CONNECT |
855448dc | 4405 | SELECT_TYPE Connecting; |
bad49fc7 KS |
4406 | int check_connect; |
4407 | #endif | |
4408 | int check_delay, no_avail; | |
d0d6b7c5 JB |
4409 | int xerrno; |
4410 | Lisp_Object proc; | |
41d03b9a | 4411 | EMACS_TIME timeout, end_time; |
a9f2c884 | 4412 | int wait_channel = -1; |
d0d6b7c5 | 4413 | int got_some_input = 0; |
2beb96f9 | 4414 | int count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
4415 | |
4416 | FD_ZERO (&Available); | |
bad49fc7 | 4417 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab | 4418 | FD_ZERO (&Connecting); |
bad49fc7 | 4419 | #endif |
d0d6b7c5 | 4420 | |
283357a7 | 4421 | if (time_limit == 0 && microsecs == 0 && wait_proc && !NILP (Vinhibit_quit) |
2b0a91e7 SM |
4422 | && !(CONSP (wait_proc->status) && EQ (XCAR (wait_proc->status), Qexit))) |
4423 | message ("Blocking call to accept-process-output with quit inhibited!!"); | |
4424 | ||
b89a415a KS |
4425 | /* If wait_proc is a process to watch, set wait_channel accordingly. */ |
4426 | if (wait_proc != NULL) | |
60f0fb11 | 4427 | wait_channel = wait_proc->infd; |
84aa3ace | 4428 | |
2beb96f9 KS |
4429 | record_unwind_protect (wait_reading_process_output_unwind, |
4430 | make_number (waiting_for_user_input_p)); | |
b89a415a | 4431 | waiting_for_user_input_p = read_kbd; |
d0d6b7c5 JB |
4432 | |
4433 | /* Since we may need to wait several times, | |
4434 | compute the absolute time to return at. */ | |
4435 | if (time_limit || microsecs) | |
4436 | { | |
4437 | EMACS_GET_TIME (end_time); | |
4438 | EMACS_SET_SECS_USECS (timeout, time_limit, microsecs); | |
4439 | EMACS_ADD_TIME (end_time, end_time, timeout); | |
4440 | } | |
4441 | ||
d0d6b7c5 JB |
4442 | while (1) |
4443 | { | |
c0239a0b RS |
4444 | int timeout_reduced_for_timers = 0; |
4445 | ||
d0d6b7c5 JB |
4446 | /* If calling from keyboard input, do not quit |
4447 | since we want to return C-g as an input character. | |
4448 | Otherwise, do pending quit if requested. */ | |
b89a415a | 4449 | if (read_kbd >= 0) |
d0d6b7c5 | 4450 | QUIT; |
6b61353c | 4451 | #ifdef SYNC_INPUT |
ef5eb925 | 4452 | else |
c3eff1b0 | 4453 | process_pending_signals (); |
6b61353c | 4454 | #endif |
d0d6b7c5 | 4455 | |
889255b4 | 4456 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 4457 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
889255b4 RS |
4458 | break; |
4459 | ||
d0d6b7c5 JB |
4460 | /* Compute time from now till when time limit is up */ |
4461 | /* Exit if already run out */ | |
4462 | if (time_limit == -1) | |
4463 | { | |
4464 | /* -1 specified for timeout means | |
4465 | gobble output available now | |
4466 | but don't wait at all. */ | |
4467 | ||
4468 | EMACS_SET_SECS_USECS (timeout, 0, 0); | |
4469 | } | |
4470 | else if (time_limit || microsecs) | |
4471 | { | |
4472 | EMACS_GET_TIME (timeout); | |
4473 | EMACS_SUB_TIME (timeout, end_time, timeout); | |
4474 | if (EMACS_TIME_NEG_P (timeout)) | |
4475 | break; | |
4476 | } | |
4477 | else | |
4478 | { | |
4479 | EMACS_SET_SECS_USECS (timeout, 100000, 0); | |
4480 | } | |
4481 | ||
f854a00b RS |
4482 | /* Normally we run timers here. |
4483 | But not if wait_for_cell; in those cases, | |
4484 | the wait is supposed to be short, | |
4485 | and those callers cannot handle running arbitrary Lisp code here. */ | |
107ed38d | 4486 | if (NILP (wait_for_cell) |
b89a415a | 4487 | && just_wait_proc >= 0) |
fb4c3627 | 4488 | { |
c0239a0b | 4489 | EMACS_TIME timer_delay; |
c573ae8e | 4490 | |
9baacf76 | 4491 | do |
c573ae8e | 4492 | { |
9baacf76 | 4493 | int old_timers_run = timers_run; |
c88164fe | 4494 | struct buffer *old_buffer = current_buffer; |
70bb1e5f | 4495 | Lisp_Object old_window = selected_window; |
177c0ea7 | 4496 | |
9baacf76 | 4497 | timer_delay = timer_check (1); |
a2fab450 GM |
4498 | |
4499 | /* If a timer has run, this might have changed buffers | |
4500 | an alike. Make read_key_sequence aware of that. */ | |
4501 | if (timers_run != old_timers_run | |
70bb1e5f CY |
4502 | && (old_buffer != current_buffer |
4503 | || !EQ (old_window, selected_window)) | |
a2fab450 GM |
4504 | && waiting_for_user_input_p == -1) |
4505 | record_asynch_buffer_change (); | |
177c0ea7 | 4506 | |
9baacf76 GM |
4507 | if (timers_run != old_timers_run && do_display) |
4508 | /* We must retry, since a timer may have requeued itself | |
4509 | and that could alter the time_delay. */ | |
3007ebfb | 4510 | redisplay_preserve_echo_area (9); |
9baacf76 GM |
4511 | else |
4512 | break; | |
c573ae8e | 4513 | } |
9baacf76 | 4514 | while (!detect_input_pending ()); |
c573ae8e | 4515 | |
69645afc | 4516 | /* If there is unread keyboard input, also return. */ |
b89a415a | 4517 | if (read_kbd != 0 |
69645afc RS |
4518 | && requeued_events_pending_p ()) |
4519 | break; | |
4520 | ||
c0239a0b | 4521 | if (! EMACS_TIME_NEG_P (timer_delay) && time_limit != -1) |
fb4c3627 RS |
4522 | { |
4523 | EMACS_TIME difference; | |
4524 | EMACS_SUB_TIME (difference, timer_delay, timeout); | |
4525 | if (EMACS_TIME_NEG_P (difference)) | |
c0239a0b RS |
4526 | { |
4527 | timeout = timer_delay; | |
4528 | timeout_reduced_for_timers = 1; | |
4529 | } | |
fb4c3627 | 4530 | } |
4abca5e7 RS |
4531 | /* If time_limit is -1, we are not going to wait at all. */ |
4532 | else if (time_limit != -1) | |
c573ae8e RS |
4533 | { |
4534 | /* This is so a breakpoint can be put here. */ | |
214d6069 | 4535 | wait_reading_process_output_1 (); |
c573ae8e | 4536 | } |
fb4c3627 RS |
4537 | } |
4538 | ||
90ab1a81 JB |
4539 | /* Cause C-g and alarm signals to take immediate action, |
4540 | and cause input available signals to zero out timeout. | |
4541 | ||
4542 | It is important that we do this before checking for process | |
4543 | activity. If we get a SIGCHLD after the explicit checks for | |
4544 | process activity, timeout is the only way we will know. */ | |
b89a415a | 4545 | if (read_kbd < 0) |
90ab1a81 JB |
4546 | set_waiting_for_input (&timeout); |
4547 | ||
6be429b1 JB |
4548 | /* If status of something has changed, and no input is |
4549 | available, notify the user of the change right away. After | |
4550 | this explicit check, we'll let the SIGCHLD handler zap | |
e42bdf01 CY |
4551 | timeout to get our attention. */ |
4552 | if (update_tick != process_tick) | |
6be429b1 | 4553 | { |
bad49fc7 KS |
4554 | SELECT_TYPE Atemp; |
4555 | #ifdef NON_BLOCKING_CONNECT | |
4556 | SELECT_TYPE Ctemp; | |
4557 | #endif | |
dd2a17ab | 4558 | |
cb768704 J |
4559 | if (kbd_on_hold_p ()) |
4560 | FD_ZERO (&Atemp); | |
4561 | else | |
4562 | Atemp = input_wait_mask; | |
bad49fc7 KS |
4563 | IF_NON_BLOCKING_CONNECT (Ctemp = connect_wait_mask); |
4564 | ||
6be429b1 | 4565 | EMACS_SET_SECS_USECS (timeout, 0, 0); |
994d9841 NR |
4566 | if ((select (max (max (max_process_desc, max_keyboard_desc), |
4567 | max_gpm_desc) + 1, | |
177c0ea7 | 4568 | &Atemp, |
bad49fc7 | 4569 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab | 4570 | (num_pending_connects > 0 ? &Ctemp : (SELECT_TYPE *)0), |
bad49fc7 KS |
4571 | #else |
4572 | (SELECT_TYPE *)0, | |
4573 | #endif | |
dd2a17ab | 4574 | (SELECT_TYPE *)0, &timeout) |
ecd1f654 | 4575 | <= 0)) |
90ab1a81 JB |
4576 | { |
4577 | /* It's okay for us to do this and then continue with | |
a0e4d3f3 | 4578 | the loop, since timeout has already been zeroed out. */ |
90ab1a81 | 4579 | clear_waiting_for_input (); |
ff6daed3 | 4580 | status_notify (NULL); |
e42bdf01 | 4581 | if (do_display) redisplay_preserve_echo_area (13); |
90ab1a81 | 4582 | } |
6be429b1 JB |
4583 | } |
4584 | ||
dd2a17ab | 4585 | /* Don't wait for output from a non-running process. Just |
63136da6 | 4586 | read whatever data has already been received. */ |
6bfd98e7 | 4587 | if (wait_proc && wait_proc->raw_status_new) |
6be429b1 | 4588 | update_status (wait_proc); |
6bfd98e7 | 4589 | if (wait_proc |
dd2a17ab KS |
4590 | && ! EQ (wait_proc->status, Qrun) |
4591 | && ! EQ (wait_proc->status, Qconnect)) | |
9aa2a7f4 | 4592 | { |
215b45e9 | 4593 | int nread, total_nread = 0; |
7ce63188 | 4594 | |
9aa2a7f4 | 4595 | clear_waiting_for_input (); |
7ce63188 RS |
4596 | XSETPROCESS (proc, wait_proc); |
4597 | ||
4598 | /* Read data from the process, until we exhaust it. */ | |
60f0fb11 | 4599 | while (wait_proc->infd >= 0) |
215b45e9 | 4600 | { |
60f0fb11 | 4601 | nread = read_process_output (proc, wait_proc->infd); |
e1b37c34 GM |
4602 | |
4603 | if (nread == 0) | |
4604 | break; | |
4605 | ||
63136da6 AS |
4606 | if (0 < nread) |
4607 | { | |
891bd142 SM |
4608 | total_nread += nread; |
4609 | got_some_input = 1; | |
4610 | } | |
215b45e9 RS |
4611 | #ifdef EIO |
4612 | else if (nread == -1 && EIO == errno) | |
63136da6 | 4613 | break; |
e1b37c34 GM |
4614 | #endif |
4615 | #ifdef EAGAIN | |
4616 | else if (nread == -1 && EAGAIN == errno) | |
63136da6 | 4617 | break; |
e1b37c34 GM |
4618 | #endif |
4619 | #ifdef EWOULDBLOCK | |
4620 | else if (nread == -1 && EWOULDBLOCK == errno) | |
63136da6 | 4621 | break; |
215b45e9 RS |
4622 | #endif |
4623 | } | |
7ce63188 | 4624 | if (total_nread > 0 && do_display) |
3007ebfb | 4625 | redisplay_preserve_echo_area (10); |
7ce63188 | 4626 | |
9aa2a7f4 JB |
4627 | break; |
4628 | } | |
6be429b1 | 4629 | |
d0d6b7c5 JB |
4630 | /* Wait till there is something to do */ |
4631 | ||
b89a415a | 4632 | if (wait_proc && just_wait_proc) |
107ed38d | 4633 | { |
60f0fb11 | 4634 | if (wait_proc->infd < 0) /* Terminated */ |
b89a415a | 4635 | break; |
60f0fb11 | 4636 | FD_SET (wait_proc->infd, &Available); |
bad49fc7 KS |
4637 | check_delay = 0; |
4638 | IF_NON_BLOCKING_CONNECT (check_connect = 0); | |
107ed38d KS |
4639 | } |
4640 | else if (!NILP (wait_for_cell)) | |
dd2a17ab KS |
4641 | { |
4642 | Available = non_process_wait_mask; | |
bad49fc7 KS |
4643 | check_delay = 0; |
4644 | IF_NON_BLOCKING_CONNECT (check_connect = 0); | |
dd2a17ab | 4645 | } |
a69281ff | 4646 | else |
dd2a17ab | 4647 | { |
b89a415a | 4648 | if (! read_kbd) |
dd2a17ab KS |
4649 | Available = non_keyboard_wait_mask; |
4650 | else | |
4651 | Available = input_wait_mask; | |
bad49fc7 | 4652 | IF_NON_BLOCKING_CONNECT (check_connect = (num_pending_connects > 0)); |
6b61353c | 4653 | check_delay = wait_channel >= 0 ? 0 : process_output_delay_count; |
dd2a17ab | 4654 | } |
d0d6b7c5 | 4655 | |
ff11dfa1 | 4656 | /* If frame size has changed or the window is newly mapped, |
ffd56f97 JB |
4657 | redisplay now, before we start to wait. There is a race |
4658 | condition here; if a SIGIO arrives between now and the select | |
016899c0 JB |
4659 | and indicates that a frame is trashed, the select may block |
4660 | displaying a trashed screen. */ | |
5164ee8e | 4661 | if (frame_garbaged && do_display) |
7286affd RS |
4662 | { |
4663 | clear_waiting_for_input (); | |
3007ebfb | 4664 | redisplay_preserve_echo_area (11); |
b89a415a | 4665 | if (read_kbd < 0) |
7efe788e | 4666 | set_waiting_for_input (&timeout); |
7286affd | 4667 | } |
ffd56f97 | 4668 | |
dd2a17ab | 4669 | no_avail = 0; |
b89a415a | 4670 | if (read_kbd && detect_input_pending ()) |
0a65b032 RS |
4671 | { |
4672 | nfds = 0; | |
dd2a17ab | 4673 | no_avail = 1; |
0a65b032 RS |
4674 | } |
4675 | else | |
dd2a17ab | 4676 | { |
bad49fc7 | 4677 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
4678 | if (check_connect) |
4679 | Connecting = connect_wait_mask; | |
bad49fc7 | 4680 | #endif |
6b61353c KH |
4681 | |
4682 | #ifdef ADAPTIVE_READ_BUFFERING | |
db853b7a | 4683 | /* Set the timeout for adaptive read buffering if any |
60f0fb11 | 4684 | process has non-zero read_output_skip and non-zero |
db853b7a KS |
4685 | read_output_delay, and we are not reading output for a |
4686 | specific wait_channel. It is not executed if | |
4687 | Vprocess_adaptive_read_buffering is nil. */ | |
6b61353c KH |
4688 | if (process_output_skip && check_delay > 0) |
4689 | { | |
4690 | int usecs = EMACS_USECS (timeout); | |
4691 | if (EMACS_SECS (timeout) > 0 || usecs > READ_OUTPUT_DELAY_MAX) | |
4692 | usecs = READ_OUTPUT_DELAY_MAX; | |
4693 | for (channel = 0; check_delay > 0 && channel <= max_process_desc; channel++) | |
4694 | { | |
4695 | proc = chan_process[channel]; | |
4696 | if (NILP (proc)) | |
4697 | continue; | |
db853b7a | 4698 | /* Find minimum non-zero read_output_delay among the |
60f0fb11 SM |
4699 | processes with non-zero read_output_skip. */ |
4700 | if (XPROCESS (proc)->read_output_delay > 0) | |
6b61353c KH |
4701 | { |
4702 | check_delay--; | |
60f0fb11 | 4703 | if (!XPROCESS (proc)->read_output_skip) |
6b61353c KH |
4704 | continue; |
4705 | FD_CLR (channel, &Available); | |
60f0fb11 SM |
4706 | XPROCESS (proc)->read_output_skip = 0; |
4707 | if (XPROCESS (proc)->read_output_delay < usecs) | |
4708 | usecs = XPROCESS (proc)->read_output_delay; | |
6b61353c KH |
4709 | } |
4710 | } | |
4711 | EMACS_SET_SECS_USECS (timeout, 0, usecs); | |
4712 | process_output_skip = 0; | |
4713 | } | |
4714 | #endif | |
872870b2 JD |
4715 | #if defined (USE_GTK) || defined (HAVE_GCONF) |
4716 | nfds = xg_select | |
4717 | #elif defined (HAVE_NS) | |
63136da6 | 4718 | nfds = ns_select |
edfda783 | 4719 | #else |
63136da6 | 4720 | nfds = select |
edfda783 | 4721 | #endif |
63136da6 | 4722 | (max (max (max_process_desc, max_keyboard_desc), |
994d9841 | 4723 | max_gpm_desc) + 1, |
177c0ea7 | 4724 | &Available, |
bad49fc7 | 4725 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab | 4726 | (check_connect ? &Connecting : (SELECT_TYPE *)0), |
bad49fc7 KS |
4727 | #else |
4728 | (SELECT_TYPE *)0, | |
4729 | #endif | |
dd2a17ab KS |
4730 | (SELECT_TYPE *)0, &timeout); |
4731 | } | |
6720a7fb | 4732 | |
d0d6b7c5 JB |
4733 | xerrno = errno; |
4734 | ||
4735 | /* Make C-g and alarm signals set flags again */ | |
4736 | clear_waiting_for_input (); | |
4737 | ||
4738 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 4739 | do_pending_window_change (0); |
d0d6b7c5 | 4740 | |
c0239a0b RS |
4741 | if (time_limit && nfds == 0 && ! timeout_reduced_for_timers) |
4742 | /* We wanted the full specified time, so return now. */ | |
d0d6b7c5 JB |
4743 | break; |
4744 | if (nfds < 0) | |
4745 | { | |
4746 | if (xerrno == EINTR) | |
dd2a17ab | 4747 | no_avail = 1; |
d0d6b7c5 JB |
4748 | else if (xerrno == EBADF) |
4749 | { | |
4750 | #ifdef AIX | |
4751 | /* AIX doesn't handle PTY closure the same way BSD does. On AIX, | |
4752 | the child's closure of the pts gives the parent a SIGHUP, and | |
4753 | the ptc file descriptor is automatically closed, | |
4754 | yielding EBADF here or at select() call above. | |
4755 | So, SIGHUP is ignored (see def of PTY_TTY_NAME_SPRINTF | |
a0e4d3f3 | 4756 | in m/ibmrt-aix.h), and here we just ignore the select error. |
d0d6b7c5 | 4757 | Cleanup occurs c/o status_notify after SIGCLD. */ |
dd2a17ab | 4758 | no_avail = 1; /* Cannot depend on values returned */ |
d0d6b7c5 JB |
4759 | #else |
4760 | abort (); | |
4761 | #endif | |
4762 | } | |
4763 | else | |
68c45bf0 | 4764 | error ("select error: %s", emacs_strerror (xerrno)); |
d0d6b7c5 | 4765 | } |
dd2a17ab KS |
4766 | |
4767 | if (no_avail) | |
4768 | { | |
4769 | FD_ZERO (&Available); | |
bad49fc7 | 4770 | IF_NON_BLOCKING_CONNECT (check_connect = 0); |
dd2a17ab KS |
4771 | } |
4772 | ||
5d5beb62 RS |
4773 | #if 0 /* When polling is used, interrupt_input is 0, |
4774 | so get_input_pending should read the input. | |
4775 | So this should not be needed. */ | |
4776 | /* If we are using polling for input, | |
4777 | and we see input available, make it get read now. | |
4778 | Otherwise it might not actually get read for a second. | |
214d6069 | 4779 | And on hpux, since we turn off polling in wait_reading_process_output, |
5d5beb62 | 4780 | it might never get read at all if we don't spend much time |
214d6069 | 4781 | outside of wait_reading_process_output. */ |
b89a415a | 4782 | if (read_kbd && interrupt_input |
5d5beb62 RS |
4783 | && keyboard_bit_set (&Available) |
4784 | && input_polling_used ()) | |
4785 | kill (getpid (), SIGALRM); | |
4786 | #endif | |
4787 | ||
d0d6b7c5 JB |
4788 | /* Check for keyboard input */ |
4789 | /* If there is any, return immediately | |
4790 | to give it higher priority than subprocesses */ | |
4791 | ||
b89a415a | 4792 | if (read_kbd != 0) |
6ed6233b | 4793 | { |
a2fab450 | 4794 | int old_timers_run = timers_run; |
c88164fe | 4795 | struct buffer *old_buffer = current_buffer; |
c0323133 | 4796 | Lisp_Object old_window = selected_window; |
a2fab450 | 4797 | int leave = 0; |
177c0ea7 | 4798 | |
5d6c2aa3 | 4799 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 GM |
4800 | { |
4801 | swallow_events (do_display); | |
4802 | if (detect_input_pending_run_timers (do_display)) | |
4803 | leave = 1; | |
4804 | } | |
6ed6233b | 4805 | |
a2fab450 GM |
4806 | /* If a timer has run, this might have changed buffers |
4807 | an alike. Make read_key_sequence aware of that. */ | |
4808 | if (timers_run != old_timers_run | |
c88164fe | 4809 | && waiting_for_user_input_p == -1 |
c0323133 GM |
4810 | && (old_buffer != current_buffer |
4811 | || !EQ (old_window, selected_window))) | |
a2fab450 GM |
4812 | record_asynch_buffer_change (); |
4813 | ||
4814 | if (leave) | |
4815 | break; | |
177c0ea7 JB |
4816 | } |
4817 | ||
69645afc | 4818 | /* If there is unread keyboard input, also return. */ |
b89a415a | 4819 | if (read_kbd != 0 |
69645afc RS |
4820 | && requeued_events_pending_p ()) |
4821 | break; | |
4822 | ||
77e1b3d4 RS |
4823 | /* If we are not checking for keyboard input now, |
4824 | do process events (but don't run any timers). | |
4825 | This is so that X events will be processed. | |
0c9960e9 | 4826 | Otherwise they may have to wait until polling takes place. |
77e1b3d4 RS |
4827 | That would causes delays in pasting selections, for example. |
4828 | ||
4829 | (We used to do this only if wait_for_cell.) */ | |
b89a415a | 4830 | if (read_kbd == 0 && detect_input_pending ()) |
f854a00b RS |
4831 | { |
4832 | swallow_events (do_display); | |
0c9960e9 | 4833 | #if 0 /* Exiting when read_kbd doesn't request that seems wrong, though. */ |
f854a00b RS |
4834 | if (detect_input_pending ()) |
4835 | break; | |
5d5beb62 | 4836 | #endif |
0c9960e9 | 4837 | } |
f854a00b | 4838 | |
84aa3ace | 4839 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 4840 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
84aa3ace RS |
4841 | break; |
4842 | ||
4746118a | 4843 | #ifdef SIGIO |
5d5beb62 | 4844 | /* If we think we have keyboard input waiting, but didn't get SIGIO, |
d0d6b7c5 JB |
4845 | go read it. This can happen with X on BSD after logging out. |
4846 | In that case, there really is no input and no SIGIO, | |
4847 | but select says there is input. */ | |
4848 | ||
b89a415a | 4849 | if (read_kbd && interrupt_input |
2601f59e | 4850 | && keyboard_bit_set (&Available) && ! noninteractive) |
e643c5be | 4851 | kill (getpid (), SIGIO); |
4746118a | 4852 | #endif |
d0d6b7c5 | 4853 | |
d0d6b7c5 JB |
4854 | if (! wait_proc) |
4855 | got_some_input |= nfds > 0; | |
4856 | ||
32676c08 JB |
4857 | /* If checking input just got us a size-change event from X, |
4858 | obey it now if we should. */ | |
b89a415a | 4859 | if (read_kbd || ! NILP (wait_for_cell)) |
2b653806 | 4860 | do_pending_window_change (0); |
32676c08 | 4861 | |
a9f2c884 | 4862 | /* Check for data from a process. */ |
dd2a17ab KS |
4863 | if (no_avail || nfds == 0) |
4864 | continue; | |
4865 | ||
a9f2c884 RS |
4866 | /* Really FIRST_PROC_DESC should be 0 on Unix, |
4867 | but this is safer in the short run. */ | |
a69281ff | 4868 | for (channel = 0; channel <= max_process_desc; channel++) |
d0d6b7c5 | 4869 | { |
a69281ff RS |
4870 | if (FD_ISSET (channel, &Available) |
4871 | && FD_ISSET (channel, &non_keyboard_wait_mask)) | |
d0d6b7c5 JB |
4872 | { |
4873 | int nread; | |
4874 | ||
4875 | /* If waiting for this channel, arrange to return as | |
4876 | soon as no more input to be processed. No more | |
4877 | waiting. */ | |
4878 | if (wait_channel == channel) | |
4879 | { | |
a9f2c884 | 4880 | wait_channel = -1; |
d0d6b7c5 JB |
4881 | time_limit = -1; |
4882 | got_some_input = 1; | |
4883 | } | |
4884 | proc = chan_process[channel]; | |
4885 | if (NILP (proc)) | |
4886 | continue; | |
4887 | ||
e690ca94 KS |
4888 | /* If this is a server stream socket, accept connection. */ |
4889 | if (EQ (XPROCESS (proc)->status, Qlisten)) | |
4890 | { | |
4891 | server_accept_connection (proc, channel); | |
4892 | continue; | |
4893 | } | |
4894 | ||
d0d6b7c5 JB |
4895 | /* Read data from the process, starting with our |
4896 | buffered-ahead character if we have one. */ | |
4897 | ||
4898 | nread = read_process_output (proc, channel); | |
4899 | if (nread > 0) | |
4900 | { | |
4901 | /* Since read_process_output can run a filter, | |
4902 | which can call accept-process-output, | |
4903 | don't try to read from any other processes | |
4904 | before doing the select again. */ | |
4905 | FD_ZERO (&Available); | |
4906 | ||
4907 | if (do_display) | |
3007ebfb | 4908 | redisplay_preserve_echo_area (12); |
d0d6b7c5 JB |
4909 | } |
4910 | #ifdef EWOULDBLOCK | |
4911 | else if (nread == -1 && errno == EWOULDBLOCK) | |
4912 | ; | |
0b75e9a4 | 4913 | #endif |
89d7280d RS |
4914 | /* ISC 4.1 defines both EWOULDBLOCK and O_NONBLOCK, |
4915 | and Emacs uses O_NONBLOCK, so what we get is EAGAIN. */ | |
d0d6b7c5 JB |
4916 | #ifdef O_NONBLOCK |
4917 | else if (nread == -1 && errno == EAGAIN) | |
4918 | ; | |
4919 | #else | |
4920 | #ifdef O_NDELAY | |
4921 | else if (nread == -1 && errno == EAGAIN) | |
4922 | ; | |
4923 | /* Note that we cannot distinguish between no input | |
4924 | available now and a closed pipe. | |
4925 | With luck, a closed pipe will be accompanied by | |
4926 | subprocess termination and SIGCHLD. */ | |
d888760c | 4927 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 | 4928 | ; |
4740825c KS |
4929 | #endif /* O_NDELAY */ |
4930 | #endif /* O_NONBLOCK */ | |
d0d6b7c5 JB |
4931 | #ifdef HAVE_PTYS |
4932 | /* On some OSs with ptys, when the process on one end of | |
4933 | a pty exits, the other end gets an error reading with | |
4934 | errno = EIO instead of getting an EOF (0 bytes read). | |
4935 | Therefore, if we get an error reading and errno = | |
4936 | EIO, just continue, because the child process has | |
4937 | exited and should clean itself up soon (e.g. when we | |
5651af6d RS |
4938 | get a SIGCHLD). |
4939 | ||
4940 | However, it has been known to happen that the SIGCHLD | |
4740825c | 4941 | got lost. So raise the signal again just in case. |
5651af6d | 4942 | It can't hurt. */ |
d0d6b7c5 | 4943 | else if (nread == -1 && errno == EIO) |
4740825c | 4944 | { |
a70d5371 | 4945 | /* Clear the descriptor now, so we only raise the |
42371deb | 4946 | signal once. Don't do this if `process' is only |
a70d5371 NR |
4947 | a pty. */ |
4948 | if (XPROCESS (proc)->pid != -2) | |
4949 | { | |
4950 | FD_CLR (channel, &input_wait_mask); | |
4951 | FD_CLR (channel, &non_keyboard_wait_mask); | |
4740825c | 4952 | |
a70d5371 NR |
4953 | kill (getpid (), SIGCHLD); |
4954 | } | |
4740825c KS |
4955 | } |
4956 | #endif /* HAVE_PTYS */ | |
ffd56f97 JB |
4957 | /* If we can detect process termination, don't consider the process |
4958 | gone just because its pipe is closed. */ | |
d0d6b7c5 | 4959 | #ifdef SIGCHLD |
d888760c | 4960 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 JB |
4961 | ; |
4962 | #endif | |
4963 | else | |
4964 | { | |
4965 | /* Preserve status of processes already terminated. */ | |
60f0fb11 | 4966 | XPROCESS (proc)->tick = ++process_tick; |
d0d6b7c5 | 4967 | deactivate_process (proc); |
6bfd98e7 | 4968 | if (XPROCESS (proc)->raw_status_new) |
d0d6b7c5 JB |
4969 | update_status (XPROCESS (proc)); |
4970 | if (EQ (XPROCESS (proc)->status, Qrun)) | |
4971 | XPROCESS (proc)->status | |
4972 | = Fcons (Qexit, Fcons (make_number (256), Qnil)); | |
4973 | } | |
4974 | } | |
177c0ea7 | 4975 | #ifdef NON_BLOCKING_CONNECT |
1566f511 KS |
4976 | if (check_connect && FD_ISSET (channel, &Connecting) |
4977 | && FD_ISSET (channel, &connect_wait_mask)) | |
dd2a17ab KS |
4978 | { |
4979 | struct Lisp_Process *p; | |
dd2a17ab KS |
4980 | |
4981 | FD_CLR (channel, &connect_wait_mask); | |
4982 | if (--num_pending_connects < 0) | |
4983 | abort (); | |
4984 | ||
4985 | proc = chan_process[channel]; | |
4986 | if (NILP (proc)) | |
4987 | continue; | |
4988 | ||
4989 | p = XPROCESS (proc); | |
4990 | ||
4991 | #ifdef GNU_LINUX | |
4992 | /* getsockopt(,,SO_ERROR,,) is said to hang on some systems. | |
63136da6 | 4993 | So only use it on systems where it is known to work. */ |
dd2a17ab | 4994 | { |
ed3751c8 JB |
4995 | int xlen = sizeof (xerrno); |
4996 | if (getsockopt (channel, SOL_SOCKET, SO_ERROR, &xerrno, &xlen)) | |
dd2a17ab KS |
4997 | xerrno = errno; |
4998 | } | |
4999 | #else | |
44c887be PJ |
5000 | { |
5001 | struct sockaddr pname; | |
ed3751c8 | 5002 | int pnamelen = sizeof (pname); |
44c887be PJ |
5003 | |
5004 | /* If connection failed, getpeername will fail. */ | |
5005 | xerrno = 0; | |
ed3751c8 | 5006 | if (getpeername (channel, &pname, &pnamelen) < 0) |
44c887be PJ |
5007 | { |
5008 | /* Obtain connect failure code through error slippage. */ | |
5009 | char dummy; | |
dd2a17ab | 5010 | xerrno = errno; |
ed3751c8 | 5011 | if (errno == ENOTCONN && read (channel, &dummy, 1) < 0) |
44c887be PJ |
5012 | xerrno = errno; |
5013 | } | |
5014 | } | |
dd2a17ab KS |
5015 | #endif |
5016 | if (xerrno) | |
5017 | { | |
60f0fb11 | 5018 | p->tick = ++process_tick; |
dd2a17ab KS |
5019 | p->status = Fcons (Qfailed, Fcons (make_number (xerrno), Qnil)); |
5020 | deactivate_process (proc); | |
5021 | } | |
5022 | else | |
5023 | { | |
5024 | p->status = Qrun; | |
5025 | /* Execute the sentinel here. If we had relied on | |
5026 | status_notify to do it later, it will read input | |
5027 | from the process before calling the sentinel. */ | |
5028 | exec_sentinel (proc, build_string ("open\n")); | |
e690ca94 | 5029 | if (!EQ (p->filter, Qt) && !EQ (p->command, Qt)) |
dd2a17ab | 5030 | { |
60f0fb11 SM |
5031 | FD_SET (p->infd, &input_wait_mask); |
5032 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
dd2a17ab KS |
5033 | } |
5034 | } | |
5035 | } | |
5036 | #endif /* NON_BLOCKING_CONNECT */ | |
ffd56f97 JB |
5037 | } /* end for each file descriptor */ |
5038 | } /* end while exit conditions not met */ | |
d0d6b7c5 | 5039 | |
2beb96f9 | 5040 | unbind_to (count, Qnil); |
d430ee71 | 5041 | |
ffd56f97 JB |
5042 | /* If calling from keyboard input, do not quit |
5043 | since we want to return C-g as an input character. | |
5044 | Otherwise, do pending quit if requested. */ | |
b89a415a | 5045 | if (read_kbd >= 0) |
ffd56f97 JB |
5046 | { |
5047 | /* Prevent input_pending from remaining set if we quit. */ | |
5048 | clear_input_pending (); | |
5049 | QUIT; | |
5050 | } | |
efa2a55c | 5051 | |
d0d6b7c5 JB |
5052 | return got_some_input; |
5053 | } | |
5054 | \f | |
3b9a3dfa RS |
5055 | /* Given a list (FUNCTION ARGS...), apply FUNCTION to the ARGS. */ |
5056 | ||
5057 | static Lisp_Object | |
d3da34e0 | 5058 | read_process_output_call (Lisp_Object fun_and_args) |
3b9a3dfa | 5059 | { |
70949dac | 5060 | return apply1 (XCAR (fun_and_args), XCDR (fun_and_args)); |
3b9a3dfa RS |
5061 | } |
5062 | ||
5063 | static Lisp_Object | |
d3da34e0 | 5064 | read_process_output_error_handler (Lisp_Object error) |
3b9a3dfa RS |
5065 | { |
5066 | cmd_error_internal (error, "error in process filter: "); | |
5067 | Vinhibit_quit = Qt; | |
5068 | update_echo_area (); | |
833ba342 | 5069 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 5070 | return Qt; |
3b9a3dfa RS |
5071 | } |
5072 | ||
d0d6b7c5 JB |
5073 | /* Read pending output from the process channel, |
5074 | starting with our buffered-ahead character if we have one. | |
0fa1789e | 5075 | Yield number of decoded characters read. |
d0d6b7c5 | 5076 | |
116c423c | 5077 | This function reads at most 4096 characters. |
d0d6b7c5 | 5078 | If you want to read all available subprocess output, |
0fa1789e KH |
5079 | you must call it repeatedly until it returns zero. |
5080 | ||
5081 | The characters read are decoded according to PROC's coding-system | |
5082 | for decoding. */ | |
d0d6b7c5 | 5083 | |
ff6daed3 | 5084 | static int |
d3da34e0 | 5085 | read_process_output (Lisp_Object proc, register int channel) |
d0d6b7c5 | 5086 | { |
8f924df7 | 5087 | register int nbytes; |
d0d6b7c5 | 5088 | char *chars; |
d0d6b7c5 | 5089 | register Lisp_Object outstream; |
d0d6b7c5 | 5090 | register struct Lisp_Process *p = XPROCESS (proc); |
f877c546 | 5091 | register EMACS_INT opoint; |
c7580538 | 5092 | struct coding_system *coding = proc_decode_coding_system[channel]; |
60f0fb11 | 5093 | int carryover = p->decoding_carryover; |
116c423c | 5094 | int readmax = 4096; |
3a4fa2f2 SM |
5095 | int count = SPECPDL_INDEX (); |
5096 | Lisp_Object odeactivate; | |
d0d6b7c5 | 5097 | |
e690ca94 | 5098 | chars = (char *) alloca (carryover + readmax); |
e7fbaa65 KH |
5099 | if (carryover) |
5100 | /* See the comment above. */ | |
72af86bd | 5101 | memcpy (chars, SDATA (p->decoding_buf), carryover); |
0fa1789e | 5102 | |
e690ca94 KS |
5103 | #ifdef DATAGRAM_SOCKETS |
5104 | /* We have a working select, so proc_buffered_char is always -1. */ | |
5105 | if (DATAGRAM_CHAN_P (channel)) | |
5106 | { | |
5107 | int len = datagram_address[channel].len; | |
39b1da20 | 5108 | nbytes = recvfrom (channel, chars + carryover, readmax, |
e690ca94 KS |
5109 | 0, datagram_address[channel].sa, &len); |
5110 | } | |
5111 | else | |
5112 | #endif | |
d0d6b7c5 | 5113 | if (proc_buffered_char[channel] < 0) |
6b61353c | 5114 | { |
8af55556 TZ |
5115 | #ifdef HAVE_GNUTLS |
5116 | if (NETCONN_P(proc) && GNUTLS_PROCESS_USABLE (proc)) | |
5117 | nbytes = emacs_gnutls_read (channel, XPROCESS (proc)->gnutls_state, | |
5118 | chars + carryover, readmax); | |
5119 | else | |
5120 | #endif | |
5121 | nbytes = emacs_read (channel, chars + carryover, readmax); | |
6b61353c | 5122 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 5123 | if (nbytes > 0 && p->adaptive_read_buffering) |
6b61353c | 5124 | { |
60f0fb11 | 5125 | int delay = p->read_output_delay; |
6b61353c KH |
5126 | if (nbytes < 256) |
5127 | { | |
5128 | if (delay < READ_OUTPUT_DELAY_MAX_MAX) | |
5129 | { | |
5130 | if (delay == 0) | |
5131 | process_output_delay_count++; | |
5132 | delay += READ_OUTPUT_DELAY_INCREMENT * 2; | |
5133 | } | |
5134 | } | |
39b1da20 | 5135 | else if (delay > 0 && (nbytes == readmax)) |
6b61353c KH |
5136 | { |
5137 | delay -= READ_OUTPUT_DELAY_INCREMENT; | |
5138 | if (delay == 0) | |
5139 | process_output_delay_count--; | |
5140 | } | |
60f0fb11 | 5141 | p->read_output_delay = delay; |
6b61353c KH |
5142 | if (delay) |
5143 | { | |
60f0fb11 | 5144 | p->read_output_skip = 1; |
6b61353c KH |
5145 | process_output_skip = 1; |
5146 | } | |
5147 | } | |
5148 | #endif | |
5149 | } | |
d0d6b7c5 JB |
5150 | else |
5151 | { | |
ed7a4b2d | 5152 | chars[carryover] = proc_buffered_char[channel]; |
d0d6b7c5 | 5153 | proc_buffered_char[channel] = -1; |
8af55556 TZ |
5154 | #ifdef HAVE_GNUTLS |
5155 | if (NETCONN_P(proc) && GNUTLS_PROCESS_USABLE (proc)) | |
5156 | nbytes = emacs_gnutls_read (channel, XPROCESS (proc)->gnutls_state, | |
5157 | chars + carryover + 1, readmax - 1); | |
5158 | else | |
5159 | #endif | |
5160 | nbytes = emacs_read (channel, chars + carryover + 1, readmax - 1); | |
1d2fc612 RS |
5161 | if (nbytes < 0) |
5162 | nbytes = 1; | |
d0d6b7c5 | 5163 | else |
1d2fc612 | 5164 | nbytes = nbytes + 1; |
d0d6b7c5 | 5165 | } |
d0d6b7c5 | 5166 | |
60f0fb11 | 5167 | p->decoding_carryover = 0; |
ca65341e | 5168 | |
ed7a4b2d | 5169 | /* At this point, NBYTES holds number of bytes just received |
0fa1789e | 5170 | (including the one in proc_buffered_char[channel]). */ |
de7fbd09 KH |
5171 | if (nbytes <= 0) |
5172 | { | |
5173 | if (nbytes < 0 || coding->mode & CODING_MODE_LAST_BLOCK) | |
5174 | return nbytes; | |
5175 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
5176 | } | |
d0d6b7c5 | 5177 | |
1d2fc612 | 5178 | /* Now set NBYTES how many bytes we must decode. */ |
e7fbaa65 | 5179 | nbytes += carryover; |
0fa1789e | 5180 | |
3a4fa2f2 SM |
5181 | odeactivate = Vdeactivate_mark; |
5182 | /* There's no good reason to let process filters change the current | |
5183 | buffer, and many callers of accept-process-output, sit-for, and | |
5184 | friends don't expect current-buffer to be changed from under them. */ | |
d2630aef | 5185 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
3a4fa2f2 | 5186 | |
1d2fc612 | 5187 | /* Read and dispose of the process output. */ |
d0d6b7c5 JB |
5188 | outstream = p->filter; |
5189 | if (!NILP (outstream)) | |
5190 | { | |
dfc21838 | 5191 | Lisp_Object obuffer, okeymap; |
1d2fc612 | 5192 | Lisp_Object text; |
4da2f5be | 5193 | int outer_running_asynch_code = running_asynch_code; |
bbce7d72 | 5194 | int waiting = waiting_for_user_input_p; |
30c78175 | 5195 | |
dfc21838 RS |
5196 | /* No need to gcpro these, because all we do with them later |
5197 | is test them for EQness, and none of them should be a string. */ | |
dfc21838 RS |
5198 | XSETBUFFER (obuffer, current_buffer); |
5199 | okeymap = current_buffer->keymap; | |
30c78175 | 5200 | |
3a4fa2f2 SM |
5201 | /* We inhibit quit here instead of just catching it so that |
5202 | hitting ^G when a filter happens to be running won't screw | |
5203 | it up. */ | |
d0d6b7c5 | 5204 | specbind (Qinhibit_quit, Qt); |
6545aada | 5205 | specbind (Qlast_nonmenu_event, Qt); |
3b9a3dfa | 5206 | |
4da2f5be RS |
5207 | /* In case we get recursively called, |
5208 | and we already saved the match data nonrecursively, | |
5209 | save the same match data in safely recursive fashion. */ | |
5210 | if (outer_running_asynch_code) | |
5211 | { | |
5212 | Lisp_Object tem; | |
5213 | /* Don't clobber the CURRENT match data, either! */ | |
89f2614d KS |
5214 | tem = Fmatch_data (Qnil, Qnil, Qnil); |
5215 | restore_search_regs (); | |
5216 | record_unwind_save_match_data (); | |
5217 | Fset_match_data (tem, Qt); | |
4da2f5be RS |
5218 | } |
5219 | ||
5220 | /* For speed, if a search happens within this code, | |
5221 | save the match data in a special nonrecursive fashion. */ | |
7074fde6 | 5222 | running_asynch_code = 1; |
4da2f5be | 5223 | |
5bbf78c1 KH |
5224 | decode_coding_c_string (coding, chars, nbytes, Qt); |
5225 | text = coding->dst_object; | |
5bbf78c1 | 5226 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); |
ed7a4b2d | 5227 | /* A new coding system might be found. */ |
5bbf78c1 | 5228 | if (!EQ (p->decode_coding_system, Vlast_coding_system_used)) |
ed7a4b2d | 5229 | { |
5bbf78c1 | 5230 | p->decode_coding_system = Vlast_coding_system_used; |
ed7a4b2d KH |
5231 | |
5232 | /* Don't call setup_coding_system for | |
5233 | proc_decode_coding_system[channel] here. It is done in | |
5234 | detect_coding called via decode_coding above. */ | |
5235 | ||
5236 | /* If a coding system for encoding is not yet decided, we set | |
5237 | it as the same as coding-system for decoding. | |
5238 | ||
5239 | But, before doing that we must check if | |
5240 | proc_encode_coding_system[p->outfd] surely points to a | |
5241 | valid memory because p->outfd will be changed once EOF is | |
5242 | sent to the process. */ | |
5243 | if (NILP (p->encode_coding_system) | |
60f0fb11 | 5244 | && proc_encode_coding_system[p->outfd]) |
ed7a4b2d | 5245 | { |
76d812bb KH |
5246 | p->encode_coding_system |
5247 | = coding_inherit_eol_type (Vlast_coding_system_used, Qnil); | |
5bbf78c1 | 5248 | setup_coding_system (p->encode_coding_system, |
60f0fb11 | 5249 | proc_encode_coding_system[p->outfd]); |
ed7a4b2d KH |
5250 | } |
5251 | } | |
51c6067d | 5252 | |
dd8c7a53 KH |
5253 | if (coding->carryover_bytes > 0) |
5254 | { | |
04961398 KH |
5255 | if (SCHARS (p->decoding_buf) < coding->carryover_bytes) |
5256 | p->decoding_buf = make_uninit_string (coding->carryover_bytes); | |
72af86bd AS |
5257 | memcpy (SDATA (p->decoding_buf), coding->carryover, |
5258 | coding->carryover_bytes); | |
8c406a9b | 5259 | p->decoding_carryover = coding->carryover_bytes; |
dd8c7a53 | 5260 | } |
e430e5ba | 5261 | if (SBYTES (text) > 0) |
dd97db06 KH |
5262 | internal_condition_case_1 (read_process_output_call, |
5263 | Fcons (outstream, | |
5264 | Fcons (proc, Fcons (text, Qnil))), | |
5265 | !NILP (Vdebug_on_error) ? Qnil : Qerror, | |
5266 | read_process_output_error_handler); | |
4da2f5be RS |
5267 | |
5268 | /* If we saved the match data nonrecursively, restore it now. */ | |
89f2614d | 5269 | restore_search_regs (); |
4da2f5be | 5270 | running_asynch_code = outer_running_asynch_code; |
d0d6b7c5 | 5271 | |
bbce7d72 RS |
5272 | /* Restore waiting_for_user_input_p as it was |
5273 | when we were called, in case the filter clobbered it. */ | |
5274 | waiting_for_user_input_p = waiting; | |
5275 | ||
7973cfa8 RS |
5276 | #if 0 /* Call record_asynch_buffer_change unconditionally, |
5277 | because we might have changed minor modes or other things | |
5278 | that affect key bindings. */ | |
dfc21838 RS |
5279 | if (! EQ (Fcurrent_buffer (), obuffer) |
5280 | || ! EQ (current_buffer->keymap, okeymap)) | |
7973cfa8 | 5281 | #endif |
927e08be RS |
5282 | /* But do it only if the caller is actually going to read events. |
5283 | Otherwise there's no need to make him wake up, and it could | |
7157b8fe | 5284 | cause trouble (for example it would make sit_for return). */ |
927e08be RS |
5285 | if (waiting_for_user_input_p == -1) |
5286 | record_asynch_buffer_change (); | |
d0d6b7c5 JB |
5287 | } |
5288 | ||
5289 | /* If no filter, write into buffer if it isn't dead. */ | |
3a4fa2f2 | 5290 | else if (!NILP (p->buffer) && !NILP (XBUFFER (p->buffer)->name)) |
d0d6b7c5 | 5291 | { |
b0310da4 | 5292 | Lisp_Object old_read_only; |
f877c546 EZ |
5293 | EMACS_INT old_begv, old_zv; |
5294 | EMACS_INT old_begv_byte, old_zv_byte; | |
5295 | EMACS_INT before, before_byte; | |
5296 | EMACS_INT opoint_byte; | |
ed7a4b2d | 5297 | Lisp_Object text; |
926b7e5e | 5298 | struct buffer *b; |
30c78175 | 5299 | |
d0d6b7c5 | 5300 | Fset_buffer (p->buffer); |
6ec8bbd2 | 5301 | opoint = PT; |
d8a2934e | 5302 | opoint_byte = PT_BYTE; |
b0310da4 | 5303 | old_read_only = current_buffer->read_only; |
12ca5cdf RS |
5304 | old_begv = BEGV; |
5305 | old_zv = ZV; | |
d8a2934e RS |
5306 | old_begv_byte = BEGV_BYTE; |
5307 | old_zv_byte = ZV_BYTE; | |
b0310da4 JB |
5308 | |
5309 | current_buffer->read_only = Qnil; | |
d0d6b7c5 JB |
5310 | |
5311 | /* Insert new output into buffer | |
5312 | at the current end-of-output marker, | |
5313 | thus preserving logical ordering of input and output. */ | |
5314 | if (XMARKER (p->mark)->buffer) | |
d8a2934e RS |
5315 | SET_PT_BOTH (clip_to_bounds (BEGV, marker_position (p->mark), ZV), |
5316 | clip_to_bounds (BEGV_BYTE, marker_byte_position (p->mark), | |
5317 | ZV_BYTE)); | |
d0d6b7c5 | 5318 | else |
d8a2934e | 5319 | SET_PT_BOTH (ZV, ZV_BYTE); |
12ca5cdf | 5320 | before = PT; |
d8a2934e | 5321 | before_byte = PT_BYTE; |
b0310da4 JB |
5322 | |
5323 | /* If the output marker is outside of the visible region, save | |
5324 | the restriction and widen. */ | |
6ec8bbd2 | 5325 | if (! (BEGV <= PT && PT <= ZV)) |
b0310da4 JB |
5326 | Fwiden (); |
5327 | ||
5bbf78c1 KH |
5328 | decode_coding_c_string (coding, chars, nbytes, Qt); |
5329 | text = coding->dst_object; | |
5330 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); | |
ed7a4b2d KH |
5331 | /* A new coding system might be found. See the comment in the |
5332 | similar code in the previous `if' block. */ | |
5bbf78c1 | 5333 | if (!EQ (p->decode_coding_system, Vlast_coding_system_used)) |
ed7a4b2d | 5334 | { |
5bbf78c1 | 5335 | p->decode_coding_system = Vlast_coding_system_used; |
ed7a4b2d | 5336 | if (NILP (p->encode_coding_system) |
60f0fb11 | 5337 | && proc_encode_coding_system[p->outfd]) |
ed7a4b2d | 5338 | { |
76d812bb KH |
5339 | p->encode_coding_system |
5340 | = coding_inherit_eol_type (Vlast_coding_system_used, Qnil); | |
5bbf78c1 | 5341 | setup_coding_system (p->encode_coding_system, |
60f0fb11 | 5342 | proc_encode_coding_system[p->outfd]); |
ed7a4b2d KH |
5343 | } |
5344 | } | |
dd8c7a53 KH |
5345 | if (coding->carryover_bytes > 0) |
5346 | { | |
04961398 KH |
5347 | if (SCHARS (p->decoding_buf) < coding->carryover_bytes) |
5348 | p->decoding_buf = make_uninit_string (coding->carryover_bytes); | |
72af86bd AS |
5349 | memcpy (SDATA (p->decoding_buf), coding->carryover, |
5350 | coding->carryover_bytes); | |
8c406a9b | 5351 | p->decoding_carryover = coding->carryover_bytes; |
dd8c7a53 | 5352 | } |
d69864bf KH |
5353 | /* Adjust the multibyteness of TEXT to that of the buffer. */ |
5354 | if (NILP (current_buffer->enable_multibyte_characters) | |
5355 | != ! STRING_MULTIBYTE (text)) | |
5356 | text = (STRING_MULTIBYTE (text) | |
57bb5c37 | 5357 | ? Fstring_as_unibyte (text) |
03f04413 | 5358 | : Fstring_to_multibyte (text)); |
57bb5c37 KH |
5359 | /* Insert before markers in case we are inserting where |
5360 | the buffer's mark is, and the user's next command is Meta-y. */ | |
e430e5ba KH |
5361 | insert_from_string_before_markers (text, 0, 0, |
5362 | SCHARS (text), SBYTES (text), 0); | |
0d023da1 | 5363 | |
926b7e5e GM |
5364 | /* Make sure the process marker's position is valid when the |
5365 | process buffer is changed in the signal_after_change above. | |
5366 | W3 is known to do that. */ | |
5367 | if (BUFFERP (p->buffer) | |
5368 | && (b = XBUFFER (p->buffer), b != current_buffer)) | |
5369 | set_marker_both (p->mark, p->buffer, BUF_PT (b), BUF_PT_BYTE (b)); | |
5370 | else | |
5371 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); | |
b0310da4 | 5372 | |
d0d6b7c5 JB |
5373 | update_mode_lines++; |
5374 | ||
12ca5cdf RS |
5375 | /* Make sure opoint and the old restrictions |
5376 | float ahead of any new text just as point would. */ | |
5377 | if (opoint >= before) | |
d8a2934e RS |
5378 | { |
5379 | opoint += PT - before; | |
5380 | opoint_byte += PT_BYTE - before_byte; | |
5381 | } | |
12ca5cdf | 5382 | if (old_begv > before) |
d8a2934e RS |
5383 | { |
5384 | old_begv += PT - before; | |
5385 | old_begv_byte += PT_BYTE - before_byte; | |
5386 | } | |
12ca5cdf | 5387 | if (old_zv >= before) |
d8a2934e RS |
5388 | { |
5389 | old_zv += PT - before; | |
5390 | old_zv_byte += PT_BYTE - before_byte; | |
5391 | } | |
12ca5cdf | 5392 | |
b0310da4 | 5393 | /* If the restriction isn't what it should be, set it. */ |
12ca5cdf RS |
5394 | if (old_begv != BEGV || old_zv != ZV) |
5395 | Fnarrow_to_region (make_number (old_begv), make_number (old_zv)); | |
b0310da4 | 5396 | |
30c78175 | 5397 | |
b0310da4 | 5398 | current_buffer->read_only = old_read_only; |
d8a2934e | 5399 | SET_PT_BOTH (opoint, opoint_byte); |
d0d6b7c5 | 5400 | } |
3a4fa2f2 SM |
5401 | /* Handling the process output should not deactivate the mark. */ |
5402 | Vdeactivate_mark = odeactivate; | |
5403 | ||
5404 | unbind_to (count, Qnil); | |
1d2fc612 | 5405 | return nbytes; |
d0d6b7c5 | 5406 | } |
d0d6b7c5 JB |
5407 | \f |
5408 | /* Sending data to subprocess */ | |
5409 | ||
5410 | jmp_buf send_process_frame; | |
0daad115 | 5411 | Lisp_Object process_sent_to; |
d0d6b7c5 JB |
5412 | |
5413 | SIGTYPE | |
d3da34e0 | 5414 | send_process_trap (int ignore) |
d0d6b7c5 | 5415 | { |
333f1b6f | 5416 | SIGNAL_THREAD_CHECK (SIGPIPE); |
c8f44005 | 5417 | sigunblock (sigmask (SIGPIPE)); |
d0d6b7c5 JB |
5418 | longjmp (send_process_frame, 1); |
5419 | } | |
5420 | ||
4556b700 RS |
5421 | /* Send some data to process PROC. |
5422 | BUF is the beginning of the data; LEN is the number of characters. | |
a92e4183 KH |
5423 | OBJECT is the Lisp object that the data comes from. If OBJECT is |
5424 | nil or t, it means that the data comes from C string. | |
0fa1789e | 5425 | |
a92e4183 KH |
5426 | If OBJECT is not nil, the data is encoded by PROC's coding-system |
5427 | for encoding before it is sent. | |
1fb0098c GM |
5428 | |
5429 | This function can evaluate Lisp code and can garbage collect. */ | |
4556b700 | 5430 | |
ff6daed3 | 5431 | static void |
8ea90aa3 | 5432 | send_process (volatile Lisp_Object proc, const unsigned char *volatile buf, |
f877c546 | 5433 | volatile EMACS_INT len, volatile Lisp_Object object) |
d0d6b7c5 | 5434 | { |
ecd1f654 | 5435 | /* Use volatile to protect variables from being clobbered by longjmp. */ |
6b61353c | 5436 | struct Lisp_Process *p = XPROCESS (proc); |
f877c546 | 5437 | EMACS_INT rv; |
0fa1789e | 5438 | struct coding_system *coding; |
347f3cd3 | 5439 | struct gcpro gcpro1; |
d2aa42f8 | 5440 | SIGTYPE (*volatile old_sigpipe) (int); |
6044e593 | 5441 | |
347f3cd3 | 5442 | GCPRO1 (object); |
d0d6b7c5 | 5443 | |
6bfd98e7 | 5444 | if (p->raw_status_new) |
6b61353c KH |
5445 | update_status (p); |
5446 | if (! EQ (p->status, Qrun)) | |
5447 | error ("Process %s not running", SDATA (p->name)); | |
60f0fb11 | 5448 | if (p->outfd < 0) |
6b61353c | 5449 | error ("Output file descriptor of %s is closed", SDATA (p->name)); |
0fa1789e | 5450 | |
60f0fb11 | 5451 | coding = proc_encode_coding_system[p->outfd]; |
5bbf78c1 | 5452 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); |
486b111b | 5453 | |
ed7a4b2d KH |
5454 | if ((STRINGP (object) && STRING_MULTIBYTE (object)) |
5455 | || (BUFFERP (object) | |
a92e4183 KH |
5456 | && !NILP (XBUFFER (object)->enable_multibyte_characters)) |
5457 | || EQ (object, Qt)) | |
278bfdd6 | 5458 | { |
6b61353c | 5459 | if (!EQ (Vlast_coding_system_used, p->encode_coding_system)) |
278bfdd6 KH |
5460 | /* The coding system for encoding was changed to raw-text |
5461 | because we sent a unibyte text previously. Now we are | |
5462 | sending a multibyte text, thus we must encode it by the | |
6b61353c KH |
5463 | original coding system specified for the current process. */ |
5464 | setup_coding_system (p->encode_coding_system, coding); | |
e08bbb84 | 5465 | coding->src_multibyte = 1; |
278bfdd6 KH |
5466 | } |
5467 | else | |
5468 | { | |
a92e4183 KH |
5469 | /* For sending a unibyte text, character code conversion should |
5470 | not take place but EOL conversion should. So, setup raw-text | |
5471 | or one of the subsidiary if we have not yet done it. */ | |
5bbf78c1 | 5472 | if (CODING_REQUIRE_ENCODING (coding)) |
a92e4183 KH |
5473 | { |
5474 | if (CODING_REQUIRE_FLUSHING (coding)) | |
5475 | { | |
5476 | /* But, before changing the coding, we must flush out data. */ | |
5477 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
5478 | send_process (proc, "", 0, Qt); | |
8f924df7 | 5479 | coding->mode &= CODING_MODE_LAST_BLOCK; |
a92e4183 | 5480 | } |
5bbf78c1 KH |
5481 | setup_coding_system (raw_text_coding_system |
5482 | (Vlast_coding_system_used), | |
5483 | coding); | |
e08bbb84 | 5484 | coding->src_multibyte = 0; |
a92e4183 | 5485 | } |
278bfdd6 | 5486 | } |
a4a37e65 KH |
5487 | coding->dst_multibyte = 0; |
5488 | ||
ed7a4b2d | 5489 | if (CODING_REQUIRE_ENCODING (coding)) |
0fa1789e | 5490 | { |
5bbf78c1 | 5491 | coding->dst_object = Qt; |
ed7a4b2d | 5492 | if (BUFFERP (object)) |
0fa1789e | 5493 | { |
f877c546 EZ |
5494 | EMACS_INT from_byte, from, to; |
5495 | EMACS_INT save_pt, save_pt_byte; | |
5bbf78c1 KH |
5496 | struct buffer *cur = current_buffer; |
5497 | ||
5498 | set_buffer_internal (XBUFFER (object)); | |
5499 | save_pt = PT, save_pt_byte = PT_BYTE; | |
5500 | ||
5501 | from_byte = PTR_BYTE_POS (buf); | |
5502 | from = BYTE_TO_CHAR (from_byte); | |
5503 | to = BYTE_TO_CHAR (from_byte + len); | |
5504 | TEMP_SET_PT_BOTH (from, from_byte); | |
5505 | encode_coding_object (coding, object, from, from_byte, | |
5506 | to, from_byte + len, Qt); | |
5507 | TEMP_SET_PT_BOTH (save_pt, save_pt_byte); | |
5508 | set_buffer_internal (cur); | |
ed7a4b2d KH |
5509 | } |
5510 | else if (STRINGP (object)) | |
5511 | { | |
550c8289 KH |
5512 | encode_coding_object (coding, object, 0, 0, SCHARS (object), |
5513 | SBYTES (object), Qt); | |
0fa1789e | 5514 | } |
5bbf78c1 | 5515 | else |
452294c2 | 5516 | { |
5bbf78c1 KH |
5517 | coding->dst_object = make_unibyte_string (buf, len); |
5518 | coding->produced = len; | |
452294c2 | 5519 | } |
ed7a4b2d | 5520 | |
e7fbaa65 | 5521 | len = coding->produced; |
347f3cd3 AS |
5522 | object = coding->dst_object; |
5523 | buf = SDATA (object); | |
0fa1789e | 5524 | } |
d0d6b7c5 | 5525 | |
4556b700 RS |
5526 | if (pty_max_bytes == 0) |
5527 | { | |
5528 | #if defined (HAVE_FPATHCONF) && defined (_PC_MAX_CANON) | |
60f0fb11 | 5529 | pty_max_bytes = fpathconf (p->outfd, _PC_MAX_CANON); |
4556b700 RS |
5530 | if (pty_max_bytes < 0) |
5531 | pty_max_bytes = 250; | |
5532 | #else | |
5533 | pty_max_bytes = 250; | |
5534 | #endif | |
5535 | /* Deduct one, to leave space for the eof. */ | |
5536 | pty_max_bytes--; | |
5537 | } | |
5538 | ||
0daad115 GM |
5539 | /* 2000-09-21: Emacs 20.7, sparc-sun-solaris-2.6, GCC 2.95.2, |
5540 | CFLAGS="-g -O": The value of the parameter `proc' is clobbered | |
5541 | when returning with longjmp despite being declared volatile. */ | |
d0d6b7c5 | 5542 | if (!setjmp (send_process_frame)) |
0daad115 GM |
5543 | { |
5544 | process_sent_to = proc; | |
5545 | while (len > 0) | |
5546 | { | |
f877c546 | 5547 | EMACS_INT this = len; |
93b4f699 | 5548 | |
0daad115 GM |
5549 | /* Send this batch, using one or more write calls. */ |
5550 | while (this > 0) | |
5551 | { | |
60f0fb11 | 5552 | int outfd = p->outfd; |
d2aa42f8 | 5553 | old_sigpipe = (SIGTYPE (*) (int)) signal (SIGPIPE, send_process_trap); |
e690ca94 KS |
5554 | #ifdef DATAGRAM_SOCKETS |
5555 | if (DATAGRAM_CHAN_P (outfd)) | |
5556 | { | |
5557 | rv = sendto (outfd, (char *) buf, this, | |
5558 | 0, datagram_address[outfd].sa, | |
5559 | datagram_address[outfd].len); | |
5560 | if (rv < 0 && errno == EMSGSIZE) | |
c8f44005 RS |
5561 | { |
5562 | signal (SIGPIPE, old_sigpipe); | |
5563 | report_file_error ("sending datagram", | |
5564 | Fcons (proc, Qnil)); | |
5565 | } | |
e690ca94 KS |
5566 | } |
5567 | else | |
5568 | #endif | |
6b61353c | 5569 | { |
8af55556 TZ |
5570 | #ifdef HAVE_GNUTLS |
5571 | if (NETCONN_P(proc) && GNUTLS_PROCESS_USABLE (proc)) | |
5572 | rv = emacs_gnutls_write (outfd, | |
5573 | XPROCESS (proc)->gnutls_state, | |
5574 | (char *) buf, this); | |
5575 | else | |
5576 | #endif | |
5577 | rv = emacs_write (outfd, (char *) buf, this); | |
6b61353c | 5578 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
5579 | if (p->read_output_delay > 0 |
5580 | && p->adaptive_read_buffering == 1) | |
6b61353c | 5581 | { |
60f0fb11 | 5582 | p->read_output_delay = 0; |
6b61353c | 5583 | process_output_delay_count--; |
60f0fb11 | 5584 | p->read_output_skip = 0; |
6b61353c KH |
5585 | } |
5586 | #endif | |
5587 | } | |
0daad115 | 5588 | signal (SIGPIPE, old_sigpipe); |
4556b700 | 5589 | |
0daad115 GM |
5590 | if (rv < 0) |
5591 | { | |
5592 | if (0 | |
d0d6b7c5 | 5593 | #ifdef EWOULDBLOCK |
0daad115 | 5594 | || errno == EWOULDBLOCK |
d0d6b7c5 JB |
5595 | #endif |
5596 | #ifdef EAGAIN | |
0daad115 | 5597 | || errno == EAGAIN |
d0d6b7c5 | 5598 | #endif |
0daad115 | 5599 | ) |
177c0ea7 | 5600 | /* Buffer is full. Wait, accepting input; |
0daad115 GM |
5601 | that may allow the program |
5602 | to finish doing output and read more. */ | |
5603 | { | |
0daad115 | 5604 | int offset = 0; |
4556b700 | 5605 | |
3433b6bd | 5606 | #ifdef BROKEN_PTY_READ_AFTER_EAGAIN |
0daad115 GM |
5607 | /* A gross hack to work around a bug in FreeBSD. |
5608 | In the following sequence, read(2) returns | |
5609 | bogus data: | |
5610 | ||
5611 | write(2) 1022 bytes | |
5612 | write(2) 954 bytes, get EAGAIN | |
5613 | read(2) 1024 bytes in process_read_output | |
5614 | read(2) 11 bytes in process_read_output | |
5615 | ||
5616 | That is, read(2) returns more bytes than have | |
5617 | ever been written successfully. The 1033 bytes | |
5618 | read are the 1022 bytes written successfully | |
5619 | after processing (for example with CRs added if | |
5620 | the terminal is set up that way which it is | |
5621 | here). The same bytes will be seen again in a | |
5622 | later read(2), without the CRs. */ | |
177c0ea7 | 5623 | |
0daad115 GM |
5624 | if (errno == EAGAIN) |
5625 | { | |
5626 | int flags = FWRITE; | |
60f0fb11 | 5627 | ioctl (p->outfd, TIOCFLUSH, &flags); |
0daad115 | 5628 | } |
3433b6bd | 5629 | #endif /* BROKEN_PTY_READ_AFTER_EAGAIN */ |
177c0ea7 | 5630 | |
0daad115 GM |
5631 | /* Running filters might relocate buffers or strings. |
5632 | Arrange to relocate BUF. */ | |
347f3cd3 | 5633 | if (BUFFERP (object)) |
0daad115 GM |
5634 | offset = BUF_PTR_BYTE_POS (XBUFFER (object), buf); |
5635 | else if (STRINGP (object)) | |
d5db4077 | 5636 | offset = buf - SDATA (object); |
0daad115 | 5637 | |
f3e6605c | 5638 | #ifdef EMACS_HAS_USECS |
214d6069 | 5639 | wait_reading_process_output (0, 20000, 0, 0, Qnil, NULL, 0); |
f3e6605c | 5640 | #else |
214d6069 | 5641 | wait_reading_process_output (1, 0, 0, 0, Qnil, NULL, 0); |
f3e6605c | 5642 | #endif |
4556b700 | 5643 | |
347f3cd3 | 5644 | if (BUFFERP (object)) |
0daad115 GM |
5645 | buf = BUF_BYTE_ADDRESS (XBUFFER (object), offset); |
5646 | else if (STRINGP (object)) | |
d5db4077 | 5647 | buf = offset + SDATA (object); |
4556b700 | 5648 | |
0daad115 GM |
5649 | rv = 0; |
5650 | } | |
5651 | else | |
5652 | /* This is a real error. */ | |
5653 | report_file_error ("writing to process", Fcons (proc, Qnil)); | |
5654 | } | |
5655 | buf += rv; | |
5656 | len -= rv; | |
5657 | this -= rv; | |
5658 | } | |
0daad115 GM |
5659 | } |
5660 | } | |
d0d6b7c5 JB |
5661 | else |
5662 | { | |
0ff69270 | 5663 | signal (SIGPIPE, old_sigpipe); |
0daad115 | 5664 | proc = process_sent_to; |
6b61353c | 5665 | p = XPROCESS (proc); |
6bfd98e7 | 5666 | p->raw_status_new = 0; |
6b61353c | 5667 | p->status = Fcons (Qexit, Fcons (make_number (256), Qnil)); |
60f0fb11 | 5668 | p->tick = ++process_tick; |
d0d6b7c5 | 5669 | deactivate_process (proc); |
6b61353c | 5670 | error ("SIGPIPE raised on process %s; closed it", SDATA (p->name)); |
d0d6b7c5 | 5671 | } |
6044e593 RS |
5672 | |
5673 | UNGCPRO; | |
d0d6b7c5 JB |
5674 | } |
5675 | ||
5676 | DEFUN ("process-send-region", Fprocess_send_region, Sprocess_send_region, | |
fdb82f93 PJ |
5677 | 3, 3, 0, |
5678 | doc: /* Send current contents of region as input to PROCESS. | |
5679 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5680 | nil, indicating the current buffer's process. | |
5681 | Called from program, takes three arguments, PROCESS, START and END. | |
5682 | If the region is more than 500 characters long, | |
5683 | it is sent in several bunches. This may happen even for shorter regions. | |
5684 | Output from processes can arrive in between bunches. */) | |
5842a27b | 5685 | (Lisp_Object process, Lisp_Object start, Lisp_Object end) |
d0d6b7c5 JB |
5686 | { |
5687 | Lisp_Object proc; | |
f877c546 | 5688 | EMACS_INT start1, end1; |
d0d6b7c5 JB |
5689 | |
5690 | proc = get_process (process); | |
5691 | validate_region (&start, &end); | |
1b234f64 KH |
5692 | |
5693 | if (XINT (start) < GPT && XINT (end) > GPT) | |
5694 | move_gap (XINT (start)); | |
5695 | ||
5696 | start1 = CHAR_TO_BYTE (XINT (start)); | |
5697 | end1 = CHAR_TO_BYTE (XINT (end)); | |
5698 | send_process (proc, BYTE_POS_ADDR (start1), end1 - start1, | |
5699 | Fcurrent_buffer ()); | |
5700 | ||
d0d6b7c5 JB |
5701 | return Qnil; |
5702 | } | |
5703 | ||
5704 | DEFUN ("process-send-string", Fprocess_send_string, Sprocess_send_string, | |
fdb82f93 PJ |
5705 | 2, 2, 0, |
5706 | doc: /* Send PROCESS the contents of STRING as input. | |
5707 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5708 | nil, indicating the current buffer's process. | |
5709 | If STRING is more than 500 characters long, | |
5710 | it is sent in several bunches. This may happen even for shorter strings. | |
5711 | Output from processes can arrive in between bunches. */) | |
5842a27b | 5712 | (Lisp_Object process, Lisp_Object string) |
d0d6b7c5 JB |
5713 | { |
5714 | Lisp_Object proc; | |
b7826503 | 5715 | CHECK_STRING (string); |
d0d6b7c5 | 5716 | proc = get_process (process); |
1b234f64 KH |
5717 | send_process (proc, SDATA (string), |
5718 | SBYTES (string), string); | |
d0d6b7c5 JB |
5719 | return Qnil; |
5720 | } | |
5721 | \f | |
16782258 JD |
5722 | /* Return the foreground process group for the tty/pty that |
5723 | the process P uses. */ | |
5724 | static int | |
d3da34e0 | 5725 | emacs_get_tty_pgrp (struct Lisp_Process *p) |
16782258 JD |
5726 | { |
5727 | int gid = -1; | |
5728 | ||
f3d9532b | 5729 | #ifdef TIOCGPGRP |
60f0fb11 | 5730 | if (ioctl (p->infd, TIOCGPGRP, &gid) == -1 && ! NILP (p->tty_name)) |
16782258 JD |
5731 | { |
5732 | int fd; | |
5733 | /* Some OS:es (Solaris 8/9) does not allow TIOCGPGRP from the | |
5734 | master side. Try the slave side. */ | |
eef60308 | 5735 | fd = emacs_open (SDATA (p->tty_name), O_RDONLY, 0); |
16782258 JD |
5736 | |
5737 | if (fd != -1) | |
5738 | { | |
5739 | ioctl (fd, TIOCGPGRP, &gid); | |
5740 | emacs_close (fd); | |
5741 | } | |
5742 | } | |
5743 | #endif /* defined (TIOCGPGRP ) */ | |
5744 | ||
5745 | return gid; | |
5746 | } | |
5747 | ||
b81ea5ef RS |
5748 | DEFUN ("process-running-child-p", Fprocess_running_child_p, |
5749 | Sprocess_running_child_p, 0, 1, 0, | |
fdb82f93 PJ |
5750 | doc: /* Return t if PROCESS has given the terminal to a child. |
5751 | If the operating system does not make it possible to find out, | |
5752 | return t unconditionally. */) | |
5842a27b | 5753 | (Lisp_Object process) |
b81ea5ef RS |
5754 | { |
5755 | /* Initialize in case ioctl doesn't exist or gives an error, | |
5756 | in a way that will cause returning t. */ | |
16782258 | 5757 | int gid; |
b81ea5ef RS |
5758 | Lisp_Object proc; |
5759 | struct Lisp_Process *p; | |
5760 | ||
5761 | proc = get_process (process); | |
5762 | p = XPROCESS (proc); | |
5763 | ||
d888760c | 5764 | if (!EQ (p->type, Qreal)) |
b81ea5ef | 5765 | error ("Process %s is not a subprocess", |
d5db4077 | 5766 | SDATA (p->name)); |
60f0fb11 | 5767 | if (p->infd < 0) |
b81ea5ef | 5768 | error ("Process %s is not active", |
d5db4077 | 5769 | SDATA (p->name)); |
b81ea5ef | 5770 | |
16782258 | 5771 | gid = emacs_get_tty_pgrp (p); |
b81ea5ef | 5772 | |
6bfd98e7 | 5773 | if (gid == p->pid) |
b81ea5ef RS |
5774 | return Qnil; |
5775 | return Qt; | |
5776 | } | |
5777 | \f | |
d0d6b7c5 | 5778 | /* send a signal number SIGNO to PROCESS. |
b81ea5ef RS |
5779 | If CURRENT_GROUP is t, that means send to the process group |
5780 | that currently owns the terminal being used to communicate with PROCESS. | |
d0d6b7c5 | 5781 | This is used for various commands in shell mode. |
b81ea5ef RS |
5782 | If CURRENT_GROUP is lambda, that means send to the process group |
5783 | that currently owns the terminal, but only if it is NOT the shell itself. | |
5784 | ||
d0d6b7c5 | 5785 | If NOMSG is zero, insert signal-announcements into process's buffers |
b0310da4 JB |
5786 | right away. |
5787 | ||
5788 | If we can, we try to signal PROCESS by sending control characters | |
e333e864 | 5789 | down the pty. This allows us to signal inferiors who have changed |
b0310da4 | 5790 | their uid, for which killpg would return an EPERM error. */ |
d0d6b7c5 | 5791 | |
f9738840 | 5792 | static void |
d3da34e0 JB |
5793 | process_send_signal (Lisp_Object process, int signo, Lisp_Object current_group, |
5794 | int nomsg) | |
d0d6b7c5 JB |
5795 | { |
5796 | Lisp_Object proc; | |
5797 | register struct Lisp_Process *p; | |
5798 | int gid; | |
5799 | int no_pgrp = 0; | |
5800 | ||
5801 | proc = get_process (process); | |
5802 | p = XPROCESS (proc); | |
5803 | ||
d888760c | 5804 | if (!EQ (p->type, Qreal)) |
d0d6b7c5 | 5805 | error ("Process %s is not a subprocess", |
d5db4077 | 5806 | SDATA (p->name)); |
60f0fb11 | 5807 | if (p->infd < 0) |
d0d6b7c5 | 5808 | error ("Process %s is not active", |
d5db4077 | 5809 | SDATA (p->name)); |
d0d6b7c5 | 5810 | |
60f0fb11 | 5811 | if (!p->pty_flag) |
d0d6b7c5 JB |
5812 | current_group = Qnil; |
5813 | ||
d0d6b7c5 | 5814 | /* If we are using pgrps, get a pgrp number and make it negative. */ |
2af70a0c RS |
5815 | if (NILP (current_group)) |
5816 | /* Send the signal to the shell's process group. */ | |
6bfd98e7 | 5817 | gid = p->pid; |
2af70a0c | 5818 | else |
d0d6b7c5 | 5819 | { |
b0310da4 | 5820 | #ifdef SIGNALS_VIA_CHARACTERS |
d0d6b7c5 JB |
5821 | /* If possible, send signals to the entire pgrp |
5822 | by sending an input character to it. */ | |
b0310da4 | 5823 | |
6be429b1 | 5824 | struct termios t; |
7f916a36 RS |
5825 | cc_t *sig_char = NULL; |
5826 | ||
60f0fb11 | 5827 | tcgetattr (p->infd, &t); |
6be429b1 JB |
5828 | |
5829 | switch (signo) | |
5830 | { | |
5831 | case SIGINT: | |
7f916a36 RS |
5832 | sig_char = &t.c_cc[VINTR]; |
5833 | break; | |
6be429b1 JB |
5834 | |
5835 | case SIGQUIT: | |
7f916a36 RS |
5836 | sig_char = &t.c_cc[VQUIT]; |
5837 | break; | |
6be429b1 JB |
5838 | |
5839 | case SIGTSTP: | |
d0adf46f | 5840 | #if defined (VSWTCH) && !defined (PREFER_VSUSP) |
7f916a36 | 5841 | sig_char = &t.c_cc[VSWTCH]; |
6be429b1 | 5842 | #else |
7f916a36 | 5843 | sig_char = &t.c_cc[VSUSP]; |
6be429b1 | 5844 | #endif |
7f916a36 | 5845 | break; |
6be429b1 JB |
5846 | } |
5847 | ||
ca4313d5 | 5848 | if (sig_char && *sig_char != CDISABLE) |
f1c206fc RS |
5849 | { |
5850 | send_process (proc, sig_char, 1, Qnil); | |
5851 | return; | |
5852 | } | |
5853 | /* If we can't send the signal with a character, | |
5854 | fall through and send it another way. */ | |
f1c206fc RS |
5855 | |
5856 | /* The code above may fall through if it can't | |
5857 | handle the signal. */ | |
20505336 | 5858 | #endif /* defined (SIGNALS_VIA_CHARACTERS) */ |
d0d6b7c5 | 5859 | |
177c0ea7 | 5860 | #ifdef TIOCGPGRP |
2af70a0c | 5861 | /* Get the current pgrp using the tty itself, if we have that. |
d0d6b7c5 JB |
5862 | Otherwise, use the pty to get the pgrp. |
5863 | On pfa systems, saka@pfu.fujitsu.co.JP writes: | |
b0310da4 JB |
5864 | "TIOCGPGRP symbol defined in sys/ioctl.h at E50. |
5865 | But, TIOCGPGRP does not work on E50 ;-P works fine on E60" | |
d0d6b7c5 JB |
5866 | His patch indicates that if TIOCGPGRP returns an error, then |
5867 | we should just assume that p->pid is also the process group id. */ | |
d0d6b7c5 | 5868 | |
16782258 | 5869 | gid = emacs_get_tty_pgrp (p); |
f3d9532b | 5870 | |
16782258 JD |
5871 | if (gid == -1) |
5872 | /* If we can't get the information, assume | |
5873 | the shell owns the tty. */ | |
6bfd98e7 | 5874 | gid = p->pid; |
2af70a0c RS |
5875 | |
5876 | /* It is not clear whether anything really can set GID to -1. | |
5877 | Perhaps on some system one of those ioctls can or could do so. | |
5878 | Or perhaps this is vestigial. */ | |
d0d6b7c5 JB |
5879 | if (gid == -1) |
5880 | no_pgrp = 1; | |
b0310da4 | 5881 | #else /* ! defined (TIOCGPGRP ) */ |
301c3fe4 JB |
5882 | /* Can't select pgrps on this system, so we know that |
5883 | the child itself heads the pgrp. */ | |
6bfd98e7 | 5884 | gid = p->pid; |
301c3fe4 | 5885 | #endif /* ! defined (TIOCGPGRP ) */ |
b81ea5ef RS |
5886 | |
5887 | /* If current_group is lambda, and the shell owns the terminal, | |
5888 | don't send any signal. */ | |
6bfd98e7 | 5889 | if (EQ (current_group, Qlambda) && gid == p->pid) |
b81ea5ef | 5890 | return; |
d0d6b7c5 | 5891 | } |
d0d6b7c5 JB |
5892 | |
5893 | switch (signo) | |
5894 | { | |
5895 | #ifdef SIGCONT | |
5896 | case SIGCONT: | |
6bfd98e7 | 5897 | p->raw_status_new = 0; |
d0d6b7c5 | 5898 | p->status = Qrun; |
60f0fb11 | 5899 | p->tick = ++process_tick; |
d0d6b7c5 | 5900 | if (!nomsg) |
e42bdf01 CY |
5901 | { |
5902 | status_notify (NULL); | |
5903 | redisplay_preserve_echo_area (13); | |
5904 | } | |
d0d6b7c5 | 5905 | break; |
301c3fe4 | 5906 | #endif /* ! defined (SIGCONT) */ |
d0d6b7c5 | 5907 | case SIGINT: |
d0d6b7c5 | 5908 | case SIGQUIT: |
d0d6b7c5 | 5909 | case SIGKILL: |
60f0fb11 | 5910 | flush_pending_output (p->infd); |
d0d6b7c5 JB |
5911 | break; |
5912 | } | |
5913 | ||
5914 | /* If we don't have process groups, send the signal to the immediate | |
5915 | subprocess. That isn't really right, but it's better than any | |
5916 | obvious alternative. */ | |
5917 | if (no_pgrp) | |
5918 | { | |
6bfd98e7 | 5919 | kill (p->pid, signo); |
d0d6b7c5 JB |
5920 | return; |
5921 | } | |
5922 | ||
5923 | /* gid may be a pid, or minus a pgrp's number */ | |
5924 | #ifdef TIOCSIGSEND | |
5925 | if (!NILP (current_group)) | |
16782258 | 5926 | { |
60f0fb11 | 5927 | if (ioctl (p->infd, TIOCSIGSEND, signo) == -1) |
16782258 JD |
5928 | EMACS_KILLPG (gid, signo); |
5929 | } | |
d0d6b7c5 JB |
5930 | else |
5931 | { | |
6bfd98e7 | 5932 | gid = - p->pid; |
d0d6b7c5 JB |
5933 | kill (gid, signo); |
5934 | } | |
301c3fe4 | 5935 | #else /* ! defined (TIOCSIGSEND) */ |
2af70a0c | 5936 | EMACS_KILLPG (gid, signo); |
301c3fe4 | 5937 | #endif /* ! defined (TIOCSIGSEND) */ |
d0d6b7c5 JB |
5938 | } |
5939 | ||
5940 | DEFUN ("interrupt-process", Finterrupt_process, Sinterrupt_process, 0, 2, 0, | |
fdb82f93 PJ |
5941 | doc: /* Interrupt process PROCESS. |
5942 | PROCESS may be a process, a buffer, or the name of a process or buffer. | |
f3d9532b | 5943 | No arg or nil means current buffer's process. |
fdb82f93 PJ |
5944 | Second arg CURRENT-GROUP non-nil means send signal to |
5945 | the current process-group of the process's controlling terminal | |
5946 | rather than to the process's own process group. | |
5947 | If the process is a shell, this means interrupt current subjob | |
5948 | rather than the shell. | |
5949 | ||
5950 | If CURRENT-GROUP is `lambda', and if the shell owns the terminal, | |
5951 | don't send the signal. */) | |
5842a27b | 5952 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5953 | { |
5954 | process_send_signal (process, SIGINT, current_group, 0); | |
5955 | return process; | |
5956 | } | |
5957 | ||
5958 | DEFUN ("kill-process", Fkill_process, Skill_process, 0, 2, 0, | |
fdb82f93 PJ |
5959 | doc: /* Kill process PROCESS. May be process or name of one. |
5960 | See function `interrupt-process' for more details on usage. */) | |
5842a27b | 5961 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5962 | { |
5963 | process_send_signal (process, SIGKILL, current_group, 0); | |
5964 | return process; | |
5965 | } | |
5966 | ||
5967 | DEFUN ("quit-process", Fquit_process, Squit_process, 0, 2, 0, | |
fdb82f93 PJ |
5968 | doc: /* Send QUIT signal to process PROCESS. May be process or name of one. |
5969 | See function `interrupt-process' for more details on usage. */) | |
5842a27b | 5970 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5971 | { |
5972 | process_send_signal (process, SIGQUIT, current_group, 0); | |
5973 | return process; | |
5974 | } | |
5975 | ||
5976 | DEFUN ("stop-process", Fstop_process, Sstop_process, 0, 2, 0, | |
fdb82f93 | 5977 | doc: /* Stop process PROCESS. May be process or name of one. |
177c0ea7 | 5978 | See function `interrupt-process' for more details on usage. |
d888760c GM |
5979 | If PROCESS is a network or serial process, inhibit handling of incoming |
5980 | traffic. */) | |
5842a27b | 5981 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 | 5982 | { |
d888760c | 5983 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
5984 | { |
5985 | struct Lisp_Process *p; | |
177c0ea7 | 5986 | |
e690ca94 KS |
5987 | p = XPROCESS (process); |
5988 | if (NILP (p->command) | |
60f0fb11 | 5989 | && p->infd >= 0) |
e690ca94 | 5990 | { |
60f0fb11 SM |
5991 | FD_CLR (p->infd, &input_wait_mask); |
5992 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
e690ca94 KS |
5993 | } |
5994 | p->command = Qt; | |
5995 | return process; | |
5996 | } | |
d0d6b7c5 | 5997 | #ifndef SIGTSTP |
a9a73d6c | 5998 | error ("No SIGTSTP support"); |
d0d6b7c5 JB |
5999 | #else |
6000 | process_send_signal (process, SIGTSTP, current_group, 0); | |
6001 | #endif | |
6002 | return process; | |
6003 | } | |
6004 | ||
6005 | DEFUN ("continue-process", Fcontinue_process, Scontinue_process, 0, 2, 0, | |
fdb82f93 | 6006 | doc: /* Continue process PROCESS. May be process or name of one. |
177c0ea7 | 6007 | See function `interrupt-process' for more details on usage. |
d888760c GM |
6008 | If PROCESS is a network or serial process, resume handling of incoming |
6009 | traffic. */) | |
5842a27b | 6010 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 | 6011 | { |
d888760c | 6012 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
6013 | { |
6014 | struct Lisp_Process *p; | |
6015 | ||
6016 | p = XPROCESS (process); | |
6017 | if (EQ (p->command, Qt) | |
60f0fb11 | 6018 | && p->infd >= 0 |
e690ca94 KS |
6019 | && (!EQ (p->filter, Qt) || EQ (p->status, Qlisten))) |
6020 | { | |
60f0fb11 SM |
6021 | FD_SET (p->infd, &input_wait_mask); |
6022 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
d888760c GM |
6023 | #ifdef WINDOWSNT |
6024 | if (fd_info[ p->infd ].flags & FILE_SERIAL) | |
6025 | PurgeComm (fd_info[ p->infd ].hnd, PURGE_RXABORT | PURGE_RXCLEAR); | |
a7ebc409 | 6026 | #else /* not WINDOWSNT */ |
d888760c | 6027 | tcflush (p->infd, TCIFLUSH); |
a7ebc409 | 6028 | #endif /* not WINDOWSNT */ |
e690ca94 KS |
6029 | } |
6030 | p->command = Qnil; | |
6031 | return process; | |
6032 | } | |
d0d6b7c5 JB |
6033 | #ifdef SIGCONT |
6034 | process_send_signal (process, SIGCONT, current_group, 0); | |
6035 | #else | |
a9a73d6c | 6036 | error ("No SIGCONT support"); |
d0d6b7c5 JB |
6037 | #endif |
6038 | return process; | |
6039 | } | |
6040 | ||
6041 | DEFUN ("signal-process", Fsignal_process, Ssignal_process, | |
cdd5ea86 KS |
6042 | 2, 2, "sProcess (name or number): \nnSignal code: ", |
6043 | doc: /* Send PROCESS the signal with code SIGCODE. | |
648f6edf | 6044 | PROCESS may also be a number specifying the process id of the |
cdd5ea86 KS |
6045 | process to signal; in this case, the process need not be a child of |
6046 | this Emacs. | |
fdb82f93 | 6047 | SIGCODE may be an integer, or a symbol whose name is a signal name. */) |
5842a27b | 6048 | (Lisp_Object process, Lisp_Object sigcode) |
d0d6b7c5 | 6049 | { |
6bfd98e7 | 6050 | pid_t pid; |
cdd5ea86 KS |
6051 | |
6052 | if (INTEGERP (process)) | |
6053 | { | |
6bfd98e7 SM |
6054 | pid = XINT (process); |
6055 | goto got_it; | |
6056 | } | |
6057 | ||
6058 | if (FLOATP (process)) | |
6059 | { | |
648f6edf | 6060 | pid = (pid_t) XFLOAT_DATA (process); |
cdd5ea86 KS |
6061 | goto got_it; |
6062 | } | |
6063 | ||
6064 | if (STRINGP (process)) | |
6065 | { | |
6066 | Lisp_Object tem; | |
6067 | if (tem = Fget_process (process), NILP (tem)) | |
6068 | { | |
6bfd98e7 SM |
6069 | pid = XINT (Fstring_to_number (process, make_number (10))); |
6070 | if (pid > 0) | |
cdd5ea86 KS |
6071 | goto got_it; |
6072 | } | |
6073 | process = tem; | |
6074 | } | |
6075 | else | |
6076 | process = get_process (process); | |
177c0ea7 | 6077 | |
cdd5ea86 KS |
6078 | if (NILP (process)) |
6079 | return process; | |
6080 | ||
6081 | CHECK_PROCESS (process); | |
6082 | pid = XPROCESS (process)->pid; | |
6bfd98e7 | 6083 | if (pid <= 0) |
cdd5ea86 KS |
6084 | error ("Cannot signal process %s", SDATA (XPROCESS (process)->name)); |
6085 | ||
6086 | got_it: | |
4766242d | 6087 | |
59324b1d | 6088 | #define parse_signal(NAME, VALUE) \ |
05131107 | 6089 | else if (!xstrcasecmp (name, NAME)) \ |
4766242d RS |
6090 | XSETINT (sigcode, VALUE) |
6091 | ||
6092 | if (INTEGERP (sigcode)) | |
6093 | ; | |
6094 | else | |
6095 | { | |
6096 | unsigned char *name; | |
6097 | ||
b7826503 | 6098 | CHECK_SYMBOL (sigcode); |
d5db4077 | 6099 | name = SDATA (SYMBOL_NAME (sigcode)); |
4766242d | 6100 | |
ed3751c8 | 6101 | if (!strncmp (name, "SIG", 3) || !strncmp (name, "sig", 3)) |
675984ed KS |
6102 | name += 3; |
6103 | ||
4766242d RS |
6104 | if (0) |
6105 | ; | |
59324b1d KS |
6106 | #ifdef SIGUSR1 |
6107 | parse_signal ("usr1", SIGUSR1); | |
6108 | #endif | |
6109 | #ifdef SIGUSR2 | |
6110 | parse_signal ("usr2", SIGUSR2); | |
6111 | #endif | |
6112 | #ifdef SIGTERM | |
6113 | parse_signal ("term", SIGTERM); | |
6114 | #endif | |
4766242d | 6115 | #ifdef SIGHUP |
59324b1d | 6116 | parse_signal ("hup", SIGHUP); |
4766242d RS |
6117 | #endif |
6118 | #ifdef SIGINT | |
59324b1d | 6119 | parse_signal ("int", SIGINT); |
4766242d RS |
6120 | #endif |
6121 | #ifdef SIGQUIT | |
59324b1d | 6122 | parse_signal ("quit", SIGQUIT); |
4766242d RS |
6123 | #endif |
6124 | #ifdef SIGILL | |
59324b1d | 6125 | parse_signal ("ill", SIGILL); |
4766242d RS |
6126 | #endif |
6127 | #ifdef SIGABRT | |
59324b1d | 6128 | parse_signal ("abrt", SIGABRT); |
4766242d RS |
6129 | #endif |
6130 | #ifdef SIGEMT | |
59324b1d | 6131 | parse_signal ("emt", SIGEMT); |
4766242d RS |
6132 | #endif |
6133 | #ifdef SIGKILL | |
59324b1d | 6134 | parse_signal ("kill", SIGKILL); |
4766242d RS |
6135 | #endif |
6136 | #ifdef SIGFPE | |
59324b1d | 6137 | parse_signal ("fpe", SIGFPE); |
4766242d RS |
6138 | #endif |
6139 | #ifdef SIGBUS | |
59324b1d | 6140 | parse_signal ("bus", SIGBUS); |
4766242d RS |
6141 | #endif |
6142 | #ifdef SIGSEGV | |
59324b1d | 6143 | parse_signal ("segv", SIGSEGV); |
4766242d RS |
6144 | #endif |
6145 | #ifdef SIGSYS | |
59324b1d | 6146 | parse_signal ("sys", SIGSYS); |
4766242d RS |
6147 | #endif |
6148 | #ifdef SIGPIPE | |
59324b1d | 6149 | parse_signal ("pipe", SIGPIPE); |
4766242d RS |
6150 | #endif |
6151 | #ifdef SIGALRM | |
59324b1d | 6152 | parse_signal ("alrm", SIGALRM); |
4766242d RS |
6153 | #endif |
6154 | #ifdef SIGURG | |
59324b1d | 6155 | parse_signal ("urg", SIGURG); |
4766242d RS |
6156 | #endif |
6157 | #ifdef SIGSTOP | |
59324b1d | 6158 | parse_signal ("stop", SIGSTOP); |
4766242d RS |
6159 | #endif |
6160 | #ifdef SIGTSTP | |
59324b1d | 6161 | parse_signal ("tstp", SIGTSTP); |
4766242d RS |
6162 | #endif |
6163 | #ifdef SIGCONT | |
59324b1d | 6164 | parse_signal ("cont", SIGCONT); |
4766242d RS |
6165 | #endif |
6166 | #ifdef SIGCHLD | |
59324b1d | 6167 | parse_signal ("chld", SIGCHLD); |
4766242d RS |
6168 | #endif |
6169 | #ifdef SIGTTIN | |
59324b1d | 6170 | parse_signal ("ttin", SIGTTIN); |
4766242d RS |
6171 | #endif |
6172 | #ifdef SIGTTOU | |
59324b1d | 6173 | parse_signal ("ttou", SIGTTOU); |
4766242d RS |
6174 | #endif |
6175 | #ifdef SIGIO | |
59324b1d | 6176 | parse_signal ("io", SIGIO); |
4766242d RS |
6177 | #endif |
6178 | #ifdef SIGXCPU | |
59324b1d | 6179 | parse_signal ("xcpu", SIGXCPU); |
4766242d RS |
6180 | #endif |
6181 | #ifdef SIGXFSZ | |
59324b1d | 6182 | parse_signal ("xfsz", SIGXFSZ); |
4766242d RS |
6183 | #endif |
6184 | #ifdef SIGVTALRM | |
59324b1d | 6185 | parse_signal ("vtalrm", SIGVTALRM); |
4766242d RS |
6186 | #endif |
6187 | #ifdef SIGPROF | |
59324b1d | 6188 | parse_signal ("prof", SIGPROF); |
4766242d RS |
6189 | #endif |
6190 | #ifdef SIGWINCH | |
59324b1d | 6191 | parse_signal ("winch", SIGWINCH); |
4766242d RS |
6192 | #endif |
6193 | #ifdef SIGINFO | |
59324b1d | 6194 | parse_signal ("info", SIGINFO); |
4766242d RS |
6195 | #endif |
6196 | else | |
9fa195a2 | 6197 | error ("Undefined signal name %s", name); |
4766242d RS |
6198 | } |
6199 | ||
59324b1d | 6200 | #undef parse_signal |
4766242d | 6201 | |
6bfd98e7 | 6202 | return make_number (kill (pid, XINT (sigcode))); |
d0d6b7c5 JB |
6203 | } |
6204 | ||
6205 | DEFUN ("process-send-eof", Fprocess_send_eof, Sprocess_send_eof, 0, 1, 0, | |
fdb82f93 PJ |
6206 | doc: /* Make PROCESS see end-of-file in its input. |
6207 | EOF comes after any text already sent to it. | |
6208 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
6209 | nil, indicating the current buffer's process. | |
6210 | If PROCESS is a network connection, or is a process communicating | |
6211 | through a pipe (as opposed to a pty), then you cannot send any more | |
d888760c GM |
6212 | text to PROCESS after you call this function. |
6213 | If PROCESS is a serial process, wait until all output written to the | |
6214 | process has been transmitted to the serial port. */) | |
5842a27b | 6215 | (Lisp_Object process) |
d0d6b7c5 JB |
6216 | { |
6217 | Lisp_Object proc; | |
de7fbd09 | 6218 | struct coding_system *coding; |
d0d6b7c5 | 6219 | |
e690ca94 KS |
6220 | if (DATAGRAM_CONN_P (process)) |
6221 | return process; | |
6222 | ||
d0d6b7c5 | 6223 | proc = get_process (process); |
60f0fb11 | 6224 | coding = proc_encode_coding_system[XPROCESS (proc)->outfd]; |
577d03d5 RS |
6225 | |
6226 | /* Make sure the process is really alive. */ | |
6bfd98e7 | 6227 | if (XPROCESS (proc)->raw_status_new) |
577d03d5 RS |
6228 | update_status (XPROCESS (proc)); |
6229 | if (! EQ (XPROCESS (proc)->status, Qrun)) | |
d5db4077 | 6230 | error ("Process %s not running", SDATA (XPROCESS (proc)->name)); |
577d03d5 | 6231 | |
de7fbd09 KH |
6232 | if (CODING_REQUIRE_FLUSHING (coding)) |
6233 | { | |
6234 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
6235 | send_process (proc, "", 0, Qnil); | |
6236 | } | |
6237 | ||
60f0fb11 | 6238 | if (XPROCESS (proc)->pty_flag) |
4556b700 | 6239 | send_process (proc, "\004", 1, Qnil); |
a879ee6f | 6240 | else if (EQ (XPROCESS (proc)->type, Qserial)) |
d888760c | 6241 | { |
a7ebc409 | 6242 | #ifndef WINDOWSNT |
d888760c GM |
6243 | if (tcdrain (XPROCESS (proc)->outfd) != 0) |
6244 | error ("tcdrain() failed: %s", emacs_strerror (errno)); | |
a7ebc409 | 6245 | #endif /* not WINDOWSNT */ |
d888760c GM |
6246 | /* Do nothing on Windows because writes are blocking. */ |
6247 | } | |
d0d6b7c5 JB |
6248 | else |
6249 | { | |
4525f571 RS |
6250 | int old_outfd, new_outfd; |
6251 | ||
93853f3d | 6252 | #ifdef HAVE_SHUTDOWN |
02f55c4b RS |
6253 | /* If this is a network connection, or socketpair is used |
6254 | for communication with the subprocess, call shutdown to cause EOF. | |
6255 | (In some old system, shutdown to socketpair doesn't work. | |
6256 | Then we just can't win.) */ | |
a879ee6f | 6257 | if (EQ (XPROCESS (proc)->type, Qnetwork) |
60f0fb11 SM |
6258 | || XPROCESS (proc)->outfd == XPROCESS (proc)->infd) |
6259 | shutdown (XPROCESS (proc)->outfd, 1); | |
02f55c4b | 6260 | /* In case of socketpair, outfd == infd, so don't close it. */ |
60f0fb11 SM |
6261 | if (XPROCESS (proc)->outfd != XPROCESS (proc)->infd) |
6262 | emacs_close (XPROCESS (proc)->outfd); | |
93853f3d | 6263 | #else /* not HAVE_SHUTDOWN */ |
60f0fb11 | 6264 | emacs_close (XPROCESS (proc)->outfd); |
93853f3d | 6265 | #endif /* not HAVE_SHUTDOWN */ |
68c45bf0 | 6266 | new_outfd = emacs_open (NULL_DEVICE, O_WRONLY, 0); |
27448380 RS |
6267 | if (new_outfd < 0) |
6268 | abort (); | |
60f0fb11 | 6269 | old_outfd = XPROCESS (proc)->outfd; |
4525f571 RS |
6270 | |
6271 | if (!proc_encode_coding_system[new_outfd]) | |
6272 | proc_encode_coding_system[new_outfd] | |
6273 | = (struct coding_system *) xmalloc (sizeof (struct coding_system)); | |
72af86bd AS |
6274 | memcpy (proc_encode_coding_system[new_outfd], |
6275 | proc_encode_coding_system[old_outfd], | |
6276 | sizeof (struct coding_system)); | |
6277 | memset (proc_encode_coding_system[old_outfd], 0, | |
6278 | sizeof (struct coding_system)); | |
4525f571 | 6279 | |
60f0fb11 | 6280 | XPROCESS (proc)->outfd = new_outfd; |
d0d6b7c5 | 6281 | } |
d0d6b7c5 JB |
6282 | return process; |
6283 | } | |
d0d6b7c5 | 6284 | \f |
3fed8ad5 GM |
6285 | /* On receipt of a signal that a child status has changed, loop asking |
6286 | about children with changed statuses until the system says there | |
6287 | are no more. | |
177c0ea7 | 6288 | |
3fed8ad5 GM |
6289 | All we do is change the status; we do not run sentinels or print |
6290 | notifications. That is saved for the next time keyboard input is | |
6291 | done, in order to avoid timing errors. | |
6292 | ||
6293 | ** WARNING: this can be called during garbage collection. | |
6294 | Therefore, it must not be fooled by the presence of mark bits in | |
6295 | Lisp objects. | |
6296 | ||
6297 | ** USG WARNING: Although it is not obvious from the documentation | |
6298 | in signal(2), on a USG system the SIGCLD handler MUST NOT call | |
6299 | signal() before executing at least one wait(), otherwise the | |
6300 | handler will be called again, resulting in an infinite loop. The | |
6301 | relevant portion of the documentation reads "SIGCLD signals will be | |
6302 | queued and the signal-catching function will be continually | |
6303 | reentered until the queue is empty". Invoking signal() causes the | |
6304 | kernel to reexamine the SIGCLD queue. Fred Fish, UniSoft Systems | |
6b61353c KH |
6305 | Inc. |
6306 | ||
6307 | ** Malloc WARNING: This should never call malloc either directly or | |
6308 | indirectly; if it does, that is a bug */ | |
d0d6b7c5 | 6309 | |
a5cfdda8 | 6310 | #ifdef SIGCHLD |
d0d6b7c5 | 6311 | SIGTYPE |
d3da34e0 | 6312 | sigchld_handler (int signo) |
d0d6b7c5 JB |
6313 | { |
6314 | int old_errno = errno; | |
6315 | Lisp_Object proc; | |
97ec208f | 6316 | struct Lisp_Process *p; |
d0d6b7c5 | 6317 | |
333f1b6f JD |
6318 | SIGNAL_THREAD_CHECK (signo); |
6319 | ||
d0d6b7c5 JB |
6320 | while (1) |
6321 | { | |
8e050977 | 6322 | pid_t pid; |
bba104c1 | 6323 | int w; |
d0d6b7c5 JB |
6324 | Lisp_Object tail; |
6325 | ||
6326 | #ifdef WNOHANG | |
6327 | #ifndef WUNTRACED | |
6328 | #define WUNTRACED 0 | |
6329 | #endif /* no WUNTRACED */ | |
6330 | /* Keep trying to get a status until we get a definitive result. */ | |
e7d4a904 | 6331 | do |
63136da6 | 6332 | { |
29ed4d51 CY |
6333 | errno = 0; |
6334 | pid = wait3 (&w, WNOHANG | WUNTRACED, 0); | |
29ed4d51 | 6335 | } |
e7d4a904 | 6336 | while (pid < 0 && errno == EINTR); |
d0d6b7c5 JB |
6337 | |
6338 | if (pid <= 0) | |
6339 | { | |
3fed8ad5 GM |
6340 | /* PID == 0 means no processes found, PID == -1 means a real |
6341 | failure. We have done all our job, so return. */ | |
d0d6b7c5 | 6342 | |
d0d6b7c5 JB |
6343 | errno = old_errno; |
6344 | return; | |
6345 | } | |
6346 | #else | |
6347 | pid = wait (&w); | |
6348 | #endif /* no WNOHANG */ | |
6349 | ||
6350 | /* Find the process that signaled us, and record its status. */ | |
6351 | ||
a5cfdda8 | 6352 | /* The process can have been deleted by Fdelete_process. */ |
8e50cc2d | 6353 | for (tail = deleted_pid_list; CONSP (tail); tail = XCDR (tail)) |
a5cfdda8 | 6354 | { |
8e050977 | 6355 | Lisp_Object xpid = XCAR (tail); |
8e50cc2d SM |
6356 | if ((INTEGERP (xpid) && pid == (pid_t) XINT (xpid)) |
6357 | || (FLOATP (xpid) && pid == (pid_t) XFLOAT_DATA (xpid))) | |
8e050977 CY |
6358 | { |
6359 | XSETCAR (tail, Qnil); | |
6360 | goto sigchld_end_of_loop; | |
6361 | } | |
a5cfdda8 KS |
6362 | } |
6363 | ||
6364 | /* Otherwise, if it is asynchronous, it is in Vprocess_alist. */ | |
d0d6b7c5 | 6365 | p = 0; |
8e50cc2d | 6366 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6367 | { |
70949dac | 6368 | proc = XCDR (XCAR (tail)); |
d0d6b7c5 | 6369 | p = XPROCESS (proc); |
d888760c | 6370 | if (EQ (p->type, Qreal) && p->pid == pid) |
d0d6b7c5 JB |
6371 | break; |
6372 | p = 0; | |
6373 | } | |
6374 | ||
6375 | /* Look for an asynchronous process whose pid hasn't been filled | |
6376 | in yet. */ | |
6377 | if (p == 0) | |
8e50cc2d | 6378 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6379 | { |
70949dac | 6380 | proc = XCDR (XCAR (tail)); |
d0d6b7c5 | 6381 | p = XPROCESS (proc); |
6bfd98e7 | 6382 | if (p->pid == -1) |
d0d6b7c5 JB |
6383 | break; |
6384 | p = 0; | |
6385 | } | |
177c0ea7 | 6386 | |
d0d6b7c5 JB |
6387 | /* Change the status of the process that was found. */ |
6388 | if (p != 0) | |
6389 | { | |
e98d950b | 6390 | int clear_desc_flag = 0; |
177c0ea7 | 6391 | |
60f0fb11 | 6392 | p->tick = ++process_tick; |
bba104c1 | 6393 | p->raw_status = w; |
6bfd98e7 | 6394 | p->raw_status_new = 1; |
177c0ea7 | 6395 | |
d0d6b7c5 | 6396 | /* If process has terminated, stop waiting for its output. */ |
e98d950b | 6397 | if ((WIFSIGNALED (w) || WIFEXITED (w)) |
60f0fb11 | 6398 | && p->infd >= 0) |
e98d950b RS |
6399 | clear_desc_flag = 1; |
6400 | ||
6401 | /* We use clear_desc_flag to avoid a compiler bug in Microsoft C. */ | |
6402 | if (clear_desc_flag) | |
6403 | { | |
60f0fb11 SM |
6404 | FD_CLR (p->infd, &input_wait_mask); |
6405 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
e98d950b | 6406 | } |
6be429b1 | 6407 | |
214d6069 | 6408 | /* Tell wait_reading_process_output that it needs to wake up and |
6be429b1 JB |
6409 | look around. */ |
6410 | if (input_available_clear_time) | |
6411 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d0d6b7c5 JB |
6412 | } |
6413 | ||
a5cfdda8 KS |
6414 | /* There was no asynchronous process found for that pid: we have |
6415 | a synchronous process. */ | |
d0d6b7c5 JB |
6416 | else |
6417 | { | |
6418 | synch_process_alive = 0; | |
6419 | ||
6420 | /* Report the status of the synchronous process. */ | |
6421 | if (WIFEXITED (w)) | |
6422 | synch_process_retcode = WRETCODE (w); | |
6423 | else if (WIFSIGNALED (w)) | |
63136da6 | 6424 | synch_process_termsig = WTERMSIG (w); |
6be429b1 | 6425 | |
214d6069 | 6426 | /* Tell wait_reading_process_output that it needs to wake up and |
6be429b1 JB |
6427 | look around. */ |
6428 | if (input_available_clear_time) | |
6429 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d0d6b7c5 JB |
6430 | } |
6431 | ||
a5cfdda8 KS |
6432 | sigchld_end_of_loop: |
6433 | ; | |
6434 | ||
d0d6b7c5 JB |
6435 | /* On some systems, we must return right away. |
6436 | If any more processes want to signal us, we will | |
6437 | get another signal. | |
6438 | Otherwise (on systems that have WNOHANG), loop around | |
6439 | to use up all the processes that have something to tell us. */ | |
4e6277d8 | 6440 | #if (defined WINDOWSNT \ |
8a2a6032 | 6441 | || (defined USG && !defined GNU_LINUX \ |
63136da6 | 6442 | && !(defined HPUX && defined WNOHANG))) |
d0d6b7c5 JB |
6443 | errno = old_errno; |
6444 | return; | |
6445 | #endif /* USG, but not HPUX with WNOHANG */ | |
6446 | } | |
6447 | } | |
a5cfdda8 | 6448 | #endif /* SIGCHLD */ |
d0d6b7c5 JB |
6449 | \f |
6450 | ||
6451 | static Lisp_Object | |
d3da34e0 | 6452 | exec_sentinel_unwind (Lisp_Object data) |
d0d6b7c5 | 6453 | { |
70949dac | 6454 | XPROCESS (XCAR (data))->sentinel = XCDR (data); |
d0d6b7c5 JB |
6455 | return Qnil; |
6456 | } | |
6457 | ||
3b9a3dfa | 6458 | static Lisp_Object |
d3da34e0 | 6459 | exec_sentinel_error_handler (Lisp_Object error) |
3b9a3dfa RS |
6460 | { |
6461 | cmd_error_internal (error, "error in process sentinel: "); | |
6462 | Vinhibit_quit = Qt; | |
6463 | update_echo_area (); | |
833ba342 | 6464 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 6465 | return Qt; |
3b9a3dfa RS |
6466 | } |
6467 | ||
d0d6b7c5 | 6468 | static void |
d3da34e0 | 6469 | exec_sentinel (Lisp_Object proc, Lisp_Object reason) |
d0d6b7c5 | 6470 | { |
dfc21838 | 6471 | Lisp_Object sentinel, obuffer, odeactivate, okeymap; |
d0d6b7c5 | 6472 | register struct Lisp_Process *p = XPROCESS (proc); |
aed13378 | 6473 | int count = SPECPDL_INDEX (); |
4da2f5be | 6474 | int outer_running_asynch_code = running_asynch_code; |
bbce7d72 | 6475 | int waiting = waiting_for_user_input_p; |
d0d6b7c5 | 6476 | |
84af9896 RS |
6477 | if (inhibit_sentinels) |
6478 | return; | |
6479 | ||
dfc21838 RS |
6480 | /* No need to gcpro these, because all we do with them later |
6481 | is test them for EQness, and none of them should be a string. */ | |
8fb3cf64 | 6482 | odeactivate = Vdeactivate_mark; |
dfc21838 RS |
6483 | XSETBUFFER (obuffer, current_buffer); |
6484 | okeymap = current_buffer->keymap; | |
6485 | ||
97e53006 SM |
6486 | /* There's no good reason to let sentinels change the current |
6487 | buffer, and many callers of accept-process-output, sit-for, and | |
6488 | friends don't expect current-buffer to be changed from under them. */ | |
d2630aef | 6489 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
97e53006 | 6490 | |
d0d6b7c5 JB |
6491 | sentinel = p->sentinel; |
6492 | if (NILP (sentinel)) | |
6493 | return; | |
6494 | ||
6495 | /* Zilch the sentinel while it's running, to avoid recursive invocations; | |
6496 | assure that it gets restored no matter how the sentinel exits. */ | |
6497 | p->sentinel = Qnil; | |
6498 | record_unwind_protect (exec_sentinel_unwind, Fcons (proc, sentinel)); | |
6499 | /* Inhibit quit so that random quits don't screw up a running filter. */ | |
6500 | specbind (Qinhibit_quit, Qt); | |
f00c449b | 6501 | specbind (Qlast_nonmenu_event, Qt); /* Why? --Stef */ |
3b9a3dfa | 6502 | |
4da2f5be RS |
6503 | /* In case we get recursively called, |
6504 | and we already saved the match data nonrecursively, | |
6505 | save the same match data in safely recursive fashion. */ | |
6506 | if (outer_running_asynch_code) | |
6507 | { | |
6508 | Lisp_Object tem; | |
89f2614d KS |
6509 | tem = Fmatch_data (Qnil, Qnil, Qnil); |
6510 | restore_search_regs (); | |
6511 | record_unwind_save_match_data (); | |
6512 | Fset_match_data (tem, Qt); | |
4da2f5be RS |
6513 | } |
6514 | ||
6515 | /* For speed, if a search happens within this code, | |
6516 | save the match data in a special nonrecursive fashion. */ | |
7074fde6 | 6517 | running_asynch_code = 1; |
4da2f5be | 6518 | |
3b9a3dfa RS |
6519 | internal_condition_case_1 (read_process_output_call, |
6520 | Fcons (sentinel, | |
6521 | Fcons (proc, Fcons (reason, Qnil))), | |
6522 | !NILP (Vdebug_on_error) ? Qnil : Qerror, | |
6523 | exec_sentinel_error_handler); | |
4da2f5be RS |
6524 | |
6525 | /* If we saved the match data nonrecursively, restore it now. */ | |
89f2614d | 6526 | restore_search_regs (); |
4da2f5be | 6527 | running_asynch_code = outer_running_asynch_code; |
8fb3cf64 KH |
6528 | |
6529 | Vdeactivate_mark = odeactivate; | |
bbce7d72 RS |
6530 | |
6531 | /* Restore waiting_for_user_input_p as it was | |
6532 | when we were called, in case the filter clobbered it. */ | |
6533 | waiting_for_user_input_p = waiting; | |
6534 | ||
7973cfa8 | 6535 | #if 0 |
dfc21838 RS |
6536 | if (! EQ (Fcurrent_buffer (), obuffer) |
6537 | || ! EQ (current_buffer->keymap, okeymap)) | |
7973cfa8 | 6538 | #endif |
927e08be RS |
6539 | /* But do it only if the caller is actually going to read events. |
6540 | Otherwise there's no need to make him wake up, and it could | |
7157b8fe | 6541 | cause trouble (for example it would make sit_for return). */ |
927e08be RS |
6542 | if (waiting_for_user_input_p == -1) |
6543 | record_asynch_buffer_change (); | |
8fb3cf64 | 6544 | |
2ea6d561 | 6545 | unbind_to (count, Qnil); |
d0d6b7c5 JB |
6546 | } |
6547 | ||
6548 | /* Report all recent events of a change in process status | |
6549 | (either run the sentinel or output a message). | |
b50fe468 RS |
6550 | This is usually done while Emacs is waiting for keyboard input |
6551 | but can be done at other times. */ | |
d0d6b7c5 | 6552 | |
ff6daed3 | 6553 | static void |
d3da34e0 | 6554 | status_notify (struct Lisp_Process *deleting_process) |
d0d6b7c5 JB |
6555 | { |
6556 | register Lisp_Object proc, buffer; | |
2e4149a8 | 6557 | Lisp_Object tail, msg; |
d0d6b7c5 JB |
6558 | struct gcpro gcpro1, gcpro2; |
6559 | ||
2e4149a8 KH |
6560 | tail = Qnil; |
6561 | msg = Qnil; | |
d0d6b7c5 JB |
6562 | /* We need to gcpro tail; if read_process_output calls a filter |
6563 | which deletes a process and removes the cons to which tail points | |
6564 | from Vprocess_alist, and then causes a GC, tail is an unprotected | |
6565 | reference. */ | |
6566 | GCPRO2 (tail, msg); | |
6567 | ||
30623085 RS |
6568 | /* Set this now, so that if new processes are created by sentinels |
6569 | that we run, we get called again to handle their status changes. */ | |
6570 | update_tick = process_tick; | |
6571 | ||
99784d63 | 6572 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6573 | { |
30623085 RS |
6574 | Lisp_Object symbol; |
6575 | register struct Lisp_Process *p; | |
6576 | ||
99784d63 | 6577 | proc = Fcdr (XCAR (tail)); |
30623085 RS |
6578 | p = XPROCESS (proc); |
6579 | ||
60f0fb11 | 6580 | if (p->tick != p->update_tick) |
d0d6b7c5 | 6581 | { |
60f0fb11 | 6582 | p->update_tick = p->tick; |
d0d6b7c5 | 6583 | |
30623085 | 6584 | /* If process is still active, read any output that remains. */ |
4da2f5be | 6585 | while (! EQ (p->filter, Qt) |
dd2a17ab | 6586 | && ! EQ (p->status, Qconnect) |
e690ca94 | 6587 | && ! EQ (p->status, Qlisten) |
d888760c GM |
6588 | /* Network or serial process not stopped: */ |
6589 | && ! EQ (p->command, Qt) | |
60f0fb11 | 6590 | && p->infd >= 0 |
ff6daed3 | 6591 | && p != deleting_process |
60f0fb11 | 6592 | && read_process_output (proc, p->infd) > 0); |
d0d6b7c5 | 6593 | |
30623085 | 6594 | buffer = p->buffer; |
d0d6b7c5 | 6595 | |
30623085 | 6596 | /* Get the text to use for the message. */ |
6bfd98e7 | 6597 | if (p->raw_status_new) |
30623085 | 6598 | update_status (p); |
116c423c | 6599 | msg = status_message (p); |
d0d6b7c5 | 6600 | |
30623085 RS |
6601 | /* If process is terminated, deactivate it or delete it. */ |
6602 | symbol = p->status; | |
6603 | if (CONSP (p->status)) | |
70949dac | 6604 | symbol = XCAR (p->status); |
d0d6b7c5 | 6605 | |
30623085 RS |
6606 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit) |
6607 | || EQ (symbol, Qclosed)) | |
6608 | { | |
6609 | if (delete_exited_processes) | |
6610 | remove_process (proc); | |
6611 | else | |
6612 | deactivate_process (proc); | |
6613 | } | |
d0d6b7c5 | 6614 | |
0ad61fe7 RS |
6615 | /* The actions above may have further incremented p->tick. |
6616 | So set p->update_tick again | |
6617 | so that an error in the sentinel will not cause | |
6618 | this code to be run again. */ | |
60f0fb11 | 6619 | p->update_tick = p->tick; |
30623085 RS |
6620 | /* Now output the message suitably. */ |
6621 | if (!NILP (p->sentinel)) | |
6622 | exec_sentinel (proc, msg); | |
6623 | /* Don't bother with a message in the buffer | |
6624 | when a process becomes runnable. */ | |
6625 | else if (!EQ (symbol, Qrun) && !NILP (buffer)) | |
6626 | { | |
01f5787b | 6627 | Lisp_Object tem; |
30623085 | 6628 | struct buffer *old = current_buffer; |
f877c546 EZ |
6629 | EMACS_INT opoint, opoint_byte; |
6630 | EMACS_INT before, before_byte; | |
2e4149a8 | 6631 | |
30623085 RS |
6632 | /* Avoid error if buffer is deleted |
6633 | (probably that's why the process is dead, too) */ | |
6634 | if (NILP (XBUFFER (buffer)->name)) | |
6635 | continue; | |
6636 | Fset_buffer (buffer); | |
12ca5cdf | 6637 | |
6ec8bbd2 | 6638 | opoint = PT; |
d8a2934e | 6639 | opoint_byte = PT_BYTE; |
30623085 RS |
6640 | /* Insert new output into buffer |
6641 | at the current end-of-output marker, | |
6642 | thus preserving logical ordering of input and output. */ | |
6643 | if (XMARKER (p->mark)->buffer) | |
d8a2934e | 6644 | Fgoto_char (p->mark); |
30623085 | 6645 | else |
d8a2934e | 6646 | SET_PT_BOTH (ZV, ZV_BYTE); |
12ca5cdf RS |
6647 | |
6648 | before = PT; | |
d8a2934e | 6649 | before_byte = PT_BYTE; |
30623085 RS |
6650 | |
6651 | tem = current_buffer->read_only; | |
6652 | current_buffer->read_only = Qnil; | |
6653 | insert_string ("\nProcess "); | |
6654 | Finsert (1, &p->name); | |
6655 | insert_string (" "); | |
6656 | Finsert (1, &msg); | |
6657 | current_buffer->read_only = tem; | |
d8a2934e | 6658 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); |
30623085 | 6659 | |
12ca5cdf | 6660 | if (opoint >= before) |
d8a2934e RS |
6661 | SET_PT_BOTH (opoint + (PT - before), |
6662 | opoint_byte + (PT_BYTE - before_byte)); | |
12ca5cdf | 6663 | else |
d8a2934e | 6664 | SET_PT_BOTH (opoint, opoint_byte); |
12ca5cdf | 6665 | |
30623085 | 6666 | set_buffer_internal (old); |
d0d6b7c5 | 6667 | } |
30623085 RS |
6668 | } |
6669 | } /* end for */ | |
d0d6b7c5 JB |
6670 | |
6671 | update_mode_lines++; /* in case buffers use %s in mode-line-format */ | |
d0d6b7c5 JB |
6672 | UNGCPRO; |
6673 | } | |
0fa1789e KH |
6674 | |
6675 | \f | |
6676 | DEFUN ("set-process-coding-system", Fset_process_coding_system, | |
6677 | Sset_process_coding_system, 1, 3, 0, | |
fdb82f93 PJ |
6678 | doc: /* Set coding systems of PROCESS to DECODING and ENCODING. |
6679 | DECODING will be used to decode subprocess output and ENCODING to | |
6680 | encode subprocess input. */) | |
5842a27b | 6681 | (register Lisp_Object process, Lisp_Object decoding, Lisp_Object encoding) |
0fa1789e KH |
6682 | { |
6683 | register struct Lisp_Process *p; | |
6684 | ||
f3d9532b JB |
6685 | CHECK_PROCESS (process); |
6686 | p = XPROCESS (process); | |
60f0fb11 | 6687 | if (p->infd < 0) |
d5db4077 | 6688 | error ("Input file descriptor of %s closed", SDATA (p->name)); |
60f0fb11 | 6689 | if (p->outfd < 0) |
d5db4077 | 6690 | error ("Output file descriptor of %s closed", SDATA (p->name)); |
03f04413 KH |
6691 | Fcheck_coding_system (decoding); |
6692 | Fcheck_coding_system (encoding); | |
76d812bb | 6693 | encoding = coding_inherit_eol_type (encoding, Qnil); |
03f04413 KH |
6694 | p->decode_coding_system = decoding; |
6695 | p->encode_coding_system = encoding; | |
f3d9532b | 6696 | setup_process_coding_systems (process); |
0fa1789e KH |
6697 | |
6698 | return Qnil; | |
6699 | } | |
6700 | ||
6701 | DEFUN ("process-coding-system", | |
6702 | Fprocess_coding_system, Sprocess_coding_system, 1, 1, 0, | |
fdb82f93 | 6703 | doc: /* Return a cons of coding systems for decoding and encoding of PROCESS. */) |
5842a27b | 6704 | (register Lisp_Object process) |
0fa1789e | 6705 | { |
f3d9532b JB |
6706 | CHECK_PROCESS (process); |
6707 | return Fcons (XPROCESS (process)->decode_coding_system, | |
6708 | XPROCESS (process)->encode_coding_system); | |
0fa1789e | 6709 | } |
03f04413 KH |
6710 | |
6711 | DEFUN ("set-process-filter-multibyte", Fset_process_filter_multibyte, | |
6712 | Sset_process_filter_multibyte, 2, 2, 0, | |
7392e23c KS |
6713 | doc: /* Set multibyteness of the strings given to PROCESS's filter. |
6714 | If FLAG is non-nil, the filter is given multibyte strings. | |
6715 | If FLAG is nil, the filter is given unibyte strings. In this case, | |
03f04413 KH |
6716 | all character code conversion except for end-of-line conversion is |
6717 | suppressed. */) | |
5842a27b | 6718 | (Lisp_Object process, Lisp_Object flag) |
03f04413 KH |
6719 | { |
6720 | register struct Lisp_Process *p; | |
6721 | ||
f3d9532b JB |
6722 | CHECK_PROCESS (process); |
6723 | p = XPROCESS (process); | |
5431bd6a SM |
6724 | if (NILP (flag)) |
6725 | p->decode_coding_system = raw_text_coding_system (p->decode_coding_system); | |
f3d9532b | 6726 | setup_process_coding_systems (process); |
03f04413 KH |
6727 | |
6728 | return Qnil; | |
6729 | } | |
6730 | ||
6731 | DEFUN ("process-filter-multibyte-p", Fprocess_filter_multibyte_p, | |
6732 | Sprocess_filter_multibyte_p, 1, 1, 0, | |
6733 | doc: /* Return t if a multibyte string is given to PROCESS's filter.*/) | |
5842a27b | 6734 | (Lisp_Object process) |
03f04413 KH |
6735 | { |
6736 | register struct Lisp_Process *p; | |
5431bd6a | 6737 | struct coding_system *coding; |
03f04413 | 6738 | |
f3d9532b JB |
6739 | CHECK_PROCESS (process); |
6740 | p = XPROCESS (process); | |
5431bd6a SM |
6741 | coding = proc_decode_coding_system[p->infd]; |
6742 | return (CODING_FOR_UNIBYTE (coding) ? Qnil : Qt); | |
03f04413 KH |
6743 | } |
6744 | ||
6745 | ||
d0d6b7c5 | 6746 | \f |
cb768704 | 6747 | |
994d9841 NR |
6748 | static int add_gpm_wait_descriptor_called_flag; |
6749 | ||
6750 | void | |
d3da34e0 | 6751 | add_gpm_wait_descriptor (int desc) |
994d9841 NR |
6752 | { |
6753 | if (! add_gpm_wait_descriptor_called_flag) | |
6754 | FD_CLR (0, &input_wait_mask); | |
6755 | add_gpm_wait_descriptor_called_flag = 1; | |
6756 | FD_SET (desc, &input_wait_mask); | |
6757 | FD_SET (desc, &gpm_wait_mask); | |
6758 | if (desc > max_gpm_desc) | |
6759 | max_gpm_desc = desc; | |
6760 | } | |
6761 | ||
994d9841 | 6762 | void |
d3da34e0 | 6763 | delete_gpm_wait_descriptor (int desc) |
994d9841 NR |
6764 | { |
6765 | int fd; | |
6766 | int lim = max_gpm_desc; | |
6767 | ||
6768 | FD_CLR (desc, &input_wait_mask); | |
6769 | FD_CLR (desc, &non_process_wait_mask); | |
6770 | ||
6771 | if (desc == max_gpm_desc) | |
6772 | for (fd = 0; fd < lim; fd++) | |
6773 | if (FD_ISSET (fd, &input_wait_mask) | |
6774 | && !FD_ISSET (fd, &non_keyboard_wait_mask) | |
6775 | && !FD_ISSET (fd, &non_process_wait_mask)) | |
6776 | max_gpm_desc = fd; | |
6777 | } | |
6778 | ||
a69281ff RS |
6779 | /* Return nonzero if *MASK has a bit set |
6780 | that corresponds to one of the keyboard input descriptors. */ | |
6781 | ||
ff6daed3 | 6782 | static int |
d3da34e0 | 6783 | keyboard_bit_set (fd_set *mask) |
a69281ff RS |
6784 | { |
6785 | int fd; | |
6786 | ||
ee8e09af | 6787 | for (fd = 0; fd <= max_keyboard_desc; fd++) |
a69281ff RS |
6788 | if (FD_ISSET (fd, mask) && FD_ISSET (fd, &input_wait_mask) |
6789 | && !FD_ISSET (fd, &non_keyboard_wait_mask)) | |
6790 | return 1; | |
6791 | ||
6792 | return 0; | |
6793 | } | |
934e2a68 | 6794 | |
f388c88a | 6795 | #else /* not subprocesses */ |
934e2a68 | 6796 | |
f388c88a EZ |
6797 | /* Defined on msdos.c. */ |
6798 | extern int sys_select (int, SELECT_TYPE *, SELECT_TYPE *, SELECT_TYPE *, | |
6799 | EMACS_TIME *); | |
934e2a68 | 6800 | |
f388c88a EZ |
6801 | /* Implementation of wait_reading_process_output, assuming that there |
6802 | are no subprocesses. Used only by the MS-DOS build. | |
934e2a68 | 6803 | |
f388c88a | 6804 | Wait for timeout to elapse and/or keyboard input to be available. |
934e2a68 | 6805 | |
f388c88a EZ |
6806 | time_limit is: |
6807 | timeout in seconds, or | |
6808 | zero for no limit, or | |
6809 | -1 means gobble data immediately available but don't wait for any. | |
934e2a68 | 6810 | |
f388c88a EZ |
6811 | read_kbd is a Lisp_Object: |
6812 | 0 to ignore keyboard input, or | |
6813 | 1 to return when input is available, or | |
6814 | -1 means caller will actually read the input, so don't throw to | |
6815 | the quit handler. | |
934e2a68 | 6816 | |
f388c88a EZ |
6817 | see full version for other parameters. We know that wait_proc will |
6818 | always be NULL, since `subprocesses' isn't defined. | |
934e2a68 | 6819 | |
f388c88a EZ |
6820 | do_display != 0 means redisplay should be done to show subprocess |
6821 | output that arrives. | |
934e2a68 | 6822 | |
f388c88a EZ |
6823 | Return true if we received input from any process. */ |
6824 | ||
6825 | int | |
1408902e EZ |
6826 | wait_reading_process_output (int time_limit, int microsecs, int read_kbd, |
6827 | int do_display, | |
6828 | Lisp_Object wait_for_cell, | |
6829 | struct Lisp_Process *wait_proc, int just_wait_proc) | |
d0d6b7c5 | 6830 | { |
f388c88a EZ |
6831 | register int nfds; |
6832 | EMACS_TIME end_time, timeout; | |
6833 | SELECT_TYPE waitchannels; | |
6834 | int xerrno; | |
d0d6b7c5 | 6835 | |
f388c88a EZ |
6836 | /* What does time_limit really mean? */ |
6837 | if (time_limit || microsecs) | |
6838 | { | |
6839 | EMACS_GET_TIME (end_time); | |
6840 | EMACS_SET_SECS_USECS (timeout, time_limit, microsecs); | |
6841 | EMACS_ADD_TIME (end_time, end_time, timeout); | |
6842 | } | |
84af9896 | 6843 | |
f388c88a EZ |
6844 | /* Turn off periodic alarms (in case they are in use) |
6845 | and then turn off any other atimers, | |
6846 | because the select emulator uses alarms. */ | |
6847 | stop_polling (); | |
6848 | turn_on_atimers (0); | |
d0d6b7c5 | 6849 | |
f388c88a EZ |
6850 | while (1) |
6851 | { | |
6852 | int timeout_reduced_for_timers = 0; | |
dd2281ae | 6853 | |
f388c88a EZ |
6854 | /* If calling from keyboard input, do not quit |
6855 | since we want to return C-g as an input character. | |
6856 | Otherwise, do pending quit if requested. */ | |
6857 | if (read_kbd >= 0) | |
6858 | QUIT; | |
bad49fc7 | 6859 | |
f388c88a EZ |
6860 | /* Exit now if the cell we're waiting for became non-nil. */ |
6861 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) | |
6862 | break; | |
0a65b032 | 6863 | |
bae8d137 RS |
6864 | /* Compute time from now till when time limit is up */ |
6865 | /* Exit if already run out */ | |
52fd88d3 EZ |
6866 | if (time_limit == -1) |
6867 | { | |
6868 | /* -1 specified for timeout means | |
6869 | gobble output available now | |
6870 | but don't wait at all. */ | |
6871 | ||
6872 | EMACS_SET_SECS_USECS (timeout, 0, 0); | |
6873 | } | |
6874 | else if (time_limit || microsecs) | |
6720a7fb | 6875 | { |
f694e5d2 KH |
6876 | EMACS_GET_TIME (timeout); |
6877 | EMACS_SUB_TIME (timeout, end_time, timeout); | |
6878 | if (EMACS_TIME_NEG_P (timeout)) | |
6720a7fb JB |
6879 | break; |
6880 | } | |
52fd88d3 EZ |
6881 | else |
6882 | { | |
6883 | EMACS_SET_SECS_USECS (timeout, 100000, 0); | |
6884 | } | |
6720a7fb | 6885 | |
bae8d137 RS |
6886 | /* If our caller will not immediately handle keyboard events, |
6887 | run timer events directly. | |
6888 | (Callers that will immediately read keyboard events | |
6889 | call timer_delay on their own.) */ | |
f3fbd155 | 6890 | if (NILP (wait_for_cell)) |
bae8d137 RS |
6891 | { |
6892 | EMACS_TIME timer_delay; | |
0a65b032 | 6893 | |
9baacf76 | 6894 | do |
0a65b032 | 6895 | { |
9baacf76 GM |
6896 | int old_timers_run = timers_run; |
6897 | timer_delay = timer_check (1); | |
6898 | if (timers_run != old_timers_run && do_display) | |
6899 | /* We must retry, since a timer may have requeued itself | |
6900 | and that could alter the time delay. */ | |
3007ebfb | 6901 | redisplay_preserve_echo_area (14); |
9baacf76 GM |
6902 | else |
6903 | break; | |
0a65b032 | 6904 | } |
9baacf76 | 6905 | while (!detect_input_pending ()); |
0a65b032 | 6906 | |
52fd88d3 | 6907 | /* If there is unread keyboard input, also return. */ |
b89a415a | 6908 | if (read_kbd != 0 |
52fd88d3 EZ |
6909 | && requeued_events_pending_p ()) |
6910 | break; | |
6911 | ||
f694e5d2 | 6912 | if (! EMACS_TIME_NEG_P (timer_delay) && time_limit != -1) |
bae8d137 RS |
6913 | { |
6914 | EMACS_TIME difference; | |
f694e5d2 | 6915 | EMACS_SUB_TIME (difference, timer_delay, timeout); |
bae8d137 RS |
6916 | if (EMACS_TIME_NEG_P (difference)) |
6917 | { | |
f694e5d2 | 6918 | timeout = timer_delay; |
bae8d137 RS |
6919 | timeout_reduced_for_timers = 1; |
6920 | } | |
6921 | } | |
6922 | } | |
6923 | ||
6720a7fb JB |
6924 | /* Cause C-g and alarm signals to take immediate action, |
6925 | and cause input available signals to zero out timeout. */ | |
b89a415a | 6926 | if (read_kbd < 0) |
6720a7fb JB |
6927 | set_waiting_for_input (&timeout); |
6928 | ||
0a65b032 RS |
6929 | /* Wait till there is something to do. */ |
6930 | ||
b89a415a | 6931 | if (! read_kbd && NILP (wait_for_cell)) |
0a65b032 RS |
6932 | FD_ZERO (&waitchannels); |
6933 | else | |
6934 | FD_SET (0, &waitchannels); | |
6935 | ||
ff11dfa1 | 6936 | /* If a frame has been newly mapped and needs updating, |
6720a7fb | 6937 | reprocess its display stuff. */ |
5164ee8e | 6938 | if (frame_garbaged && do_display) |
0a65b032 RS |
6939 | { |
6940 | clear_waiting_for_input (); | |
3007ebfb | 6941 | redisplay_preserve_echo_area (15); |
b89a415a | 6942 | if (read_kbd < 0) |
0a65b032 RS |
6943 | set_waiting_for_input (&timeout); |
6944 | } | |
6720a7fb | 6945 | |
b89a415a | 6946 | if (read_kbd && detect_input_pending ()) |
1861b214 RS |
6947 | { |
6948 | nfds = 0; | |
6949 | FD_ZERO (&waitchannels); | |
6950 | } | |
6951 | else | |
6952 | nfds = select (1, &waitchannels, (SELECT_TYPE *)0, (SELECT_TYPE *)0, | |
6953 | &timeout); | |
f694e5d2 KH |
6954 | |
6955 | xerrno = errno; | |
6720a7fb JB |
6956 | |
6957 | /* Make C-g and alarm signals set flags again */ | |
6958 | clear_waiting_for_input (); | |
6959 | ||
6960 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 6961 | do_pending_window_change (0); |
6720a7fb | 6962 | |
f694e5d2 KH |
6963 | if (time_limit && nfds == 0 && ! timeout_reduced_for_timers) |
6964 | /* We waited the full specified time, so return now. */ | |
6965 | break; | |
6966 | ||
6720a7fb JB |
6967 | if (nfds == -1) |
6968 | { | |
6969 | /* If the system call was interrupted, then go around the | |
6970 | loop again. */ | |
f694e5d2 | 6971 | if (xerrno == EINTR) |
8db121c4 | 6972 | FD_ZERO (&waitchannels); |
f694e5d2 | 6973 | else |
68c45bf0 | 6974 | error ("select error: %s", emacs_strerror (xerrno)); |
6720a7fb | 6975 | } |
6720a7fb | 6976 | |
f694e5d2 KH |
6977 | /* Check for keyboard input */ |
6978 | ||
b89a415a | 6979 | if (read_kbd |
78c1afb6 | 6980 | && detect_input_pending_run_timers (do_display)) |
f694e5d2 | 6981 | { |
78c1afb6 | 6982 | swallow_events (do_display); |
f694e5d2 | 6983 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 | 6984 | break; |
78c1afb6 EZ |
6985 | } |
6986 | ||
52fd88d3 | 6987 | /* If there is unread keyboard input, also return. */ |
b89a415a | 6988 | if (read_kbd |
52fd88d3 EZ |
6989 | && requeued_events_pending_p ()) |
6990 | break; | |
6991 | ||
f854a00b RS |
6992 | /* If wait_for_cell. check for keyboard input |
6993 | but don't run any timers. | |
6994 | ??? (It seems wrong to me to check for keyboard | |
6995 | input at all when wait_for_cell, but the code | |
6996 | has been this way since July 1994. | |
6997 | Try changing this after version 19.31.) */ | |
f3fbd155 | 6998 | if (! NILP (wait_for_cell) |
f854a00b RS |
6999 | && detect_input_pending ()) |
7000 | { | |
7001 | swallow_events (do_display); | |
7002 | if (detect_input_pending ()) | |
7003 | break; | |
7004 | } | |
7005 | ||
0a65b032 | 7006 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 7007 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
0a65b032 | 7008 | break; |
6720a7fb JB |
7009 | } |
7010 | ||
a87b802f JB |
7011 | start_polling (); |
7012 | ||
6720a7fb JB |
7013 | return 0; |
7014 | } | |
7015 | ||
f388c88a EZ |
7016 | #endif /* not subprocesses */ |
7017 | ||
7018 | /* The following functions are needed even if async subprocesses are | |
7019 | not supported. Some of them are no-op stubs in that case. */ | |
6720a7fb | 7020 | |
01faa934 DN |
7021 | /* Add DESC to the set of keyboard input descriptors. */ |
7022 | ||
7023 | void | |
7024 | add_keyboard_wait_descriptor (int desc) | |
7025 | { | |
20477505 | 7026 | #ifdef subprocesses |
01faa934 DN |
7027 | FD_SET (desc, &input_wait_mask); |
7028 | FD_SET (desc, &non_process_wait_mask); | |
7029 | if (desc > max_keyboard_desc) | |
7030 | max_keyboard_desc = desc; | |
20477505 | 7031 | #endif |
01faa934 DN |
7032 | } |
7033 | ||
7034 | /* From now on, do not expect DESC to give keyboard input. */ | |
7035 | ||
7036 | void | |
7037 | delete_keyboard_wait_descriptor (int desc) | |
7038 | { | |
7039 | #ifdef subprocesses | |
7040 | int fd; | |
7041 | int lim = max_keyboard_desc; | |
7042 | ||
7043 | FD_CLR (desc, &input_wait_mask); | |
7044 | FD_CLR (desc, &non_process_wait_mask); | |
7045 | ||
7046 | if (desc == max_keyboard_desc) | |
7047 | for (fd = 0; fd < lim; fd++) | |
7048 | if (FD_ISSET (fd, &input_wait_mask) | |
7049 | && !FD_ISSET (fd, &non_keyboard_wait_mask) | |
7050 | && !FD_ISSET (fd, &gpm_wait_mask)) | |
7051 | max_keyboard_desc = fd; | |
7052 | #endif /* subprocesses */ | |
7053 | } | |
7054 | ||
fc549af9 EZ |
7055 | /* Setup coding systems of PROCESS. */ |
7056 | ||
7057 | void | |
7058 | setup_process_coding_systems (Lisp_Object process) | |
7059 | { | |
7060 | #ifdef subprocesses | |
7061 | struct Lisp_Process *p = XPROCESS (process); | |
7062 | int inch = p->infd; | |
7063 | int outch = p->outfd; | |
7064 | Lisp_Object coding_system; | |
7065 | ||
7066 | if (inch < 0 || outch < 0) | |
7067 | return; | |
7068 | ||
7069 | if (!proc_decode_coding_system[inch]) | |
7070 | proc_decode_coding_system[inch] | |
7071 | = (struct coding_system *) xmalloc (sizeof (struct coding_system)); | |
7072 | coding_system = p->decode_coding_system; | |
7073 | if (! NILP (p->filter)) | |
7074 | ; | |
7075 | else if (BUFFERP (p->buffer)) | |
7076 | { | |
7077 | if (NILP (XBUFFER (p->buffer)->enable_multibyte_characters)) | |
7078 | coding_system = raw_text_coding_system (coding_system); | |
7079 | } | |
7080 | setup_coding_system (coding_system, proc_decode_coding_system[inch]); | |
7081 | ||
7082 | if (!proc_encode_coding_system[outch]) | |
7083 | proc_encode_coding_system[outch] | |
7084 | = (struct coding_system *) xmalloc (sizeof (struct coding_system)); | |
7085 | setup_coding_system (p->encode_coding_system, | |
7086 | proc_encode_coding_system[outch]); | |
7087 | #endif | |
7088 | } | |
7089 | ||
7090 | /* Close all descriptors currently in use for communication | |
7091 | with subprocess. This is used in a newly-forked subprocess | |
7092 | to get rid of irrelevant descriptors. */ | |
7093 | ||
7094 | void | |
7095 | close_process_descs (void) | |
7096 | { | |
7097 | #ifndef DOS_NT | |
7098 | int i; | |
7099 | for (i = 0; i < MAXDESC; i++) | |
7100 | { | |
7101 | Lisp_Object process; | |
7102 | process = chan_process[i]; | |
7103 | if (!NILP (process)) | |
7104 | { | |
7105 | int in = XPROCESS (process)->infd; | |
7106 | int out = XPROCESS (process)->outfd; | |
7107 | if (in >= 0) | |
7108 | emacs_close (in); | |
7109 | if (out >= 0 && in != out) | |
7110 | emacs_close (out); | |
7111 | } | |
7112 | } | |
7113 | #endif | |
7114 | } | |
7115 | ||
6720a7fb | 7116 | DEFUN ("get-buffer-process", Fget_buffer_process, Sget_buffer_process, 1, 1, 0, |
f388c88a EZ |
7117 | doc: /* Return the (or a) process associated with BUFFER. |
7118 | BUFFER may be a buffer or the name of one. */) | |
7119 | (register Lisp_Object buffer) | |
6720a7fb | 7120 | { |
f388c88a EZ |
7121 | #ifdef subprocesses |
7122 | register Lisp_Object buf, tail, proc; | |
7123 | ||
7124 | if (NILP (buffer)) return Qnil; | |
7125 | buf = Fget_buffer (buffer); | |
7126 | if (NILP (buf)) return Qnil; | |
7127 | ||
7128 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) | |
7129 | { | |
7130 | proc = Fcdr (XCAR (tail)); | |
7131 | if (PROCESSP (proc) && EQ (XPROCESS (proc)->buffer, buf)) | |
7132 | return proc; | |
7133 | } | |
7134 | #endif /* subprocesses */ | |
6720a7fb JB |
7135 | return Qnil; |
7136 | } | |
7137 | ||
52a1b894 | 7138 | DEFUN ("process-inherit-coding-system-flag", |
fdb82f93 PJ |
7139 | Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag, |
7140 | 1, 1, 0, | |
f388c88a EZ |
7141 | doc: /* Return the value of inherit-coding-system flag for PROCESS. |
7142 | If this flag is t, `buffer-file-coding-system' of the buffer | |
7143 | associated with PROCESS will inherit the coding system used to decode | |
7144 | the process output. */) | |
5842a27b | 7145 | (register Lisp_Object process) |
52a1b894 | 7146 | { |
f388c88a EZ |
7147 | #ifdef subprocesses |
7148 | CHECK_PROCESS (process); | |
7149 | return XPROCESS (process)->inherit_coding_system_flag ? Qt : Qnil; | |
7150 | #else | |
52a1b894 EZ |
7151 | /* Ignore the argument and return the value of |
7152 | inherit-process-coding-system. */ | |
7153 | return inherit_process_coding_system ? Qt : Qnil; | |
f388c88a | 7154 | #endif |
52a1b894 EZ |
7155 | } |
7156 | ||
6720a7fb | 7157 | /* Kill all processes associated with `buffer'. |
f388c88a | 7158 | If `buffer' is nil, kill all processes */ |
6720a7fb | 7159 | |
d9bb0c32 | 7160 | void |
f388c88a | 7161 | kill_buffer_processes (Lisp_Object buffer) |
6720a7fb | 7162 | { |
f388c88a EZ |
7163 | #ifdef subprocesses |
7164 | Lisp_Object tail, proc; | |
7165 | ||
7166 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) | |
7167 | { | |
7168 | proc = XCDR (XCAR (tail)); | |
7169 | if (PROCESSP (proc) | |
7170 | && (NILP (buffer) || EQ (XPROCESS (proc)->buffer, buffer))) | |
7171 | { | |
7172 | if (NETCONN_P (proc) || SERIALCONN_P (proc)) | |
7173 | Fdelete_process (proc); | |
7174 | else if (XPROCESS (proc)->infd >= 0) | |
7175 | process_send_signal (proc, SIGHUP, Qnil, 1); | |
7176 | } | |
7177 | } | |
7178 | #else /* subprocesses */ | |
7179 | /* Since we have no subprocesses, this does nothing. */ | |
7180 | #endif /* subprocesses */ | |
6720a7fb JB |
7181 | } |
7182 | ||
77defa9a EZ |
7183 | DEFUN ("waiting-for-user-input-p", Fwaiting_for_user_input_p, Swaiting_for_user_input_p, |
7184 | 0, 0, 0, | |
7185 | doc: /* Returns non-nil if Emacs is waiting for input from the user. | |
7186 | This is intended for use by asynchronous process output filters and sentinels. */) | |
7187 | (void) | |
7188 | { | |
7189 | #ifdef subprocesses | |
7190 | return (waiting_for_user_input_p ? Qt : Qnil); | |
7191 | #else | |
7192 | return Qnil; | |
7193 | #endif | |
7194 | } | |
7195 | ||
d568829b EZ |
7196 | /* Stop reading input from keyboard sources. */ |
7197 | ||
7198 | void | |
7199 | hold_keyboard_input (void) | |
7200 | { | |
7201 | kbd_is_on_hold = 1; | |
7202 | } | |
7203 | ||
7204 | /* Resume reading input from keyboard sources. */ | |
7205 | ||
7206 | void | |
7207 | unhold_keyboard_input (void) | |
7208 | { | |
7209 | kbd_is_on_hold = 0; | |
7210 | } | |
7211 | ||
7212 | /* Return non-zero if keyboard input is on hold, zero otherwise. */ | |
7213 | ||
7214 | int | |
7215 | kbd_on_hold_p (void) | |
7216 | { | |
7217 | return kbd_is_on_hold; | |
7218 | } | |
7219 | ||
f388c88a EZ |
7220 | \f |
7221 | /* Enumeration of and access to system processes a-la ps(1). */ | |
7222 | ||
934e2a68 EZ |
7223 | DEFUN ("list-system-processes", Flist_system_processes, Slist_system_processes, |
7224 | 0, 0, 0, | |
7225 | doc: /* Return a list of numerical process IDs of all running processes. | |
7226 | If this functionality is unsupported, return nil. | |
7227 | ||
f388c88a EZ |
7228 | See `process-attributes' for getting attributes of a process given its ID. */) |
7229 | (void) | |
7230 | { | |
7231 | return list_system_processes (); | |
7232 | } | |
7233 | ||
7234 | DEFUN ("process-attributes", Fprocess_attributes, | |
7235 | Sprocess_attributes, 1, 1, 0, | |
7236 | doc: /* Return attributes of the process given by its PID, a number. | |
7237 | ||
7238 | Value is an alist where each element is a cons cell of the form | |
7239 | ||
7240 | \(KEY . VALUE) | |
7241 | ||
7242 | If this functionality is unsupported, the value is nil. | |
7243 | ||
7244 | See `list-system-processes' for getting a list of all process IDs. | |
7245 | ||
7246 | The KEYs of the attributes that this function may return are listed | |
7247 | below, together with the type of the associated VALUE (in parentheses). | |
7248 | Not all platforms support all of these attributes; unsupported | |
7249 | attributes will not appear in the returned alist. | |
7250 | Unless explicitly indicated otherwise, numbers can have either | |
7251 | integer or floating point values. | |
7252 | ||
7253 | euid -- Effective user User ID of the process (number) | |
7254 | user -- User name corresponding to euid (string) | |
7255 | egid -- Effective user Group ID of the process (number) | |
7256 | group -- Group name corresponding to egid (string) | |
7257 | comm -- Command name (executable name only) (string) | |
7258 | state -- Process state code, such as "S", "R", or "T" (string) | |
7259 | ppid -- Parent process ID (number) | |
7260 | pgrp -- Process group ID (number) | |
7261 | sess -- Session ID, i.e. process ID of session leader (number) | |
7262 | ttname -- Controlling tty name (string) | |
7263 | tpgid -- ID of foreground process group on the process's tty (number) | |
7264 | minflt -- number of minor page faults (number) | |
7265 | majflt -- number of major page faults (number) | |
7266 | cminflt -- cumulative number of minor page faults (number) | |
7267 | cmajflt -- cumulative number of major page faults (number) | |
7268 | utime -- user time used by the process, in the (HIGH LOW USEC) format | |
7269 | stime -- system time used by the process, in the (HIGH LOW USEC) format | |
7270 | time -- sum of utime and stime, in the (HIGH LOW USEC) format | |
7271 | cutime -- user time used by the process and its children, (HIGH LOW USEC) | |
7272 | cstime -- system time used by the process and its children, (HIGH LOW USEC) | |
7273 | ctime -- sum of cutime and cstime, in the (HIGH LOW USEC) format | |
7274 | pri -- priority of the process (number) | |
7275 | nice -- nice value of the process (number) | |
7276 | thcount -- process thread count (number) | |
7277 | start -- time the process started, in the (HIGH LOW USEC) format | |
7278 | vsize -- virtual memory size of the process in KB's (number) | |
7279 | rss -- resident set size of the process in KB's (number) | |
7280 | etime -- elapsed time the process is running, in (HIGH LOW USEC) format | |
7281 | pcpu -- percents of CPU time used by the process (floating-point number) | |
7282 | pmem -- percents of total physical memory used by process's resident set | |
7283 | (floating-point number) | |
7284 | args -- command line which invoked the process (string). */) | |
7285 | ( Lisp_Object pid) | |
7286 | { | |
7287 | return system_process_attributes (pid); | |
7288 | } | |
7289 | ||
7290 | \f | |
7291 | void | |
7292 | init_process (void) | |
7293 | { | |
7294 | #ifdef subprocesses | |
7295 | register int i; | |
7296 | ||
7297 | inhibit_sentinels = 0; | |
7298 | ||
7299 | #ifdef SIGCHLD | |
7300 | #ifndef CANNOT_DUMP | |
7301 | if (! noninteractive || initialized) | |
7302 | #endif | |
7303 | signal (SIGCHLD, sigchld_handler); | |
7304 | #endif | |
7305 | ||
7306 | FD_ZERO (&input_wait_mask); | |
7307 | FD_ZERO (&non_keyboard_wait_mask); | |
7308 | FD_ZERO (&non_process_wait_mask); | |
7309 | max_process_desc = 0; | |
7310 | ||
7311 | #ifdef NON_BLOCKING_CONNECT | |
7312 | FD_ZERO (&connect_wait_mask); | |
7313 | num_pending_connects = 0; | |
7314 | #endif | |
7315 | ||
7316 | #ifdef ADAPTIVE_READ_BUFFERING | |
7317 | process_output_delay_count = 0; | |
7318 | process_output_skip = 0; | |
7319 | #endif | |
7320 | ||
7321 | /* Don't do this, it caused infinite select loops. The display | |
7322 | method should call add_keyboard_wait_descriptor on stdin if it | |
7323 | needs that. */ | |
7324 | #if 0 | |
7325 | FD_SET (0, &input_wait_mask); | |
7326 | #endif | |
7327 | ||
7328 | Vprocess_alist = Qnil; | |
7329 | #ifdef SIGCHLD | |
7330 | deleted_pid_list = Qnil; | |
7331 | #endif | |
7332 | for (i = 0; i < MAXDESC; i++) | |
7333 | { | |
7334 | chan_process[i] = Qnil; | |
7335 | proc_buffered_char[i] = -1; | |
7336 | } | |
7337 | memset (proc_decode_coding_system, 0, sizeof proc_decode_coding_system); | |
7338 | memset (proc_encode_coding_system, 0, sizeof proc_encode_coding_system); | |
7339 | #ifdef DATAGRAM_SOCKETS | |
7340 | memset (datagram_address, 0, sizeof datagram_address); | |
7341 | #endif | |
7342 | ||
f388c88a EZ |
7343 | { |
7344 | Lisp_Object subfeatures = Qnil; | |
7345 | const struct socket_options *sopt; | |
7346 | ||
7347 | #define ADD_SUBFEATURE(key, val) \ | |
7348 | subfeatures = pure_cons (pure_cons (key, pure_cons (val, Qnil)), subfeatures) | |
7349 | ||
7350 | #ifdef NON_BLOCKING_CONNECT | |
7351 | ADD_SUBFEATURE (QCnowait, Qt); | |
7352 | #endif | |
7353 | #ifdef DATAGRAM_SOCKETS | |
7354 | ADD_SUBFEATURE (QCtype, Qdatagram); | |
7355 | #endif | |
7356 | #ifdef HAVE_SEQPACKET | |
7357 | ADD_SUBFEATURE (QCtype, Qseqpacket); | |
7358 | #endif | |
7359 | #ifdef HAVE_LOCAL_SOCKETS | |
7360 | ADD_SUBFEATURE (QCfamily, Qlocal); | |
7361 | #endif | |
7362 | ADD_SUBFEATURE (QCfamily, Qipv4); | |
7363 | #ifdef AF_INET6 | |
7364 | ADD_SUBFEATURE (QCfamily, Qipv6); | |
7365 | #endif | |
7366 | #ifdef HAVE_GETSOCKNAME | |
7367 | ADD_SUBFEATURE (QCservice, Qt); | |
7368 | #endif | |
7369 | #if defined(O_NONBLOCK) || defined(O_NDELAY) | |
7370 | ADD_SUBFEATURE (QCserver, Qt); | |
7371 | #endif | |
7372 | ||
7373 | for (sopt = socket_options; sopt->name; sopt++) | |
7374 | subfeatures = pure_cons (intern_c_string (sopt->name), subfeatures); | |
7375 | ||
7376 | Fprovide (intern_c_string ("make-network-process"), subfeatures); | |
7377 | } | |
f388c88a EZ |
7378 | |
7379 | #if defined (DARWIN_OS) | |
7380 | /* PTYs are broken on Darwin < 6, but are sometimes useful for interactive | |
7381 | processes. As such, we only change the default value. */ | |
7382 | if (initialized) | |
7383 | { | |
8ea90aa3 | 7384 | const char *release = get_operating_system_release (); |
f388c88a EZ |
7385 | if (!release || !release[0] || (release[0] < MIN_PTY_KERNEL_VERSION |
7386 | && release[1] == '.')) { | |
7387 | Vprocess_connection_type = Qnil; | |
7388 | } | |
7389 | } | |
7390 | #endif | |
7391 | #endif /* subprocesses */ | |
7392 | kbd_is_on_hold = 0; | |
7393 | } | |
7394 | ||
7395 | void | |
7396 | syms_of_process (void) | |
7397 | { | |
7398 | #ifdef subprocesses | |
7399 | ||
7400 | Qprocessp = intern_c_string ("processp"); | |
7401 | staticpro (&Qprocessp); | |
7402 | Qrun = intern_c_string ("run"); | |
7403 | staticpro (&Qrun); | |
7404 | Qstop = intern_c_string ("stop"); | |
7405 | staticpro (&Qstop); | |
7406 | Qsignal = intern_c_string ("signal"); | |
7407 | staticpro (&Qsignal); | |
7408 | ||
7409 | /* Qexit is already staticpro'd by syms_of_eval; don't staticpro it | |
7410 | here again. | |
934e2a68 | 7411 | |
f388c88a EZ |
7412 | Qexit = intern_c_string ("exit"); |
7413 | staticpro (&Qexit); */ | |
934e2a68 | 7414 | |
f388c88a EZ |
7415 | Qopen = intern_c_string ("open"); |
7416 | staticpro (&Qopen); | |
7417 | Qclosed = intern_c_string ("closed"); | |
7418 | staticpro (&Qclosed); | |
7419 | Qconnect = intern_c_string ("connect"); | |
7420 | staticpro (&Qconnect); | |
7421 | Qfailed = intern_c_string ("failed"); | |
7422 | staticpro (&Qfailed); | |
7423 | Qlisten = intern_c_string ("listen"); | |
7424 | staticpro (&Qlisten); | |
7425 | Qlocal = intern_c_string ("local"); | |
7426 | staticpro (&Qlocal); | |
7427 | Qipv4 = intern_c_string ("ipv4"); | |
7428 | staticpro (&Qipv4); | |
7429 | #ifdef AF_INET6 | |
7430 | Qipv6 = intern_c_string ("ipv6"); | |
7431 | staticpro (&Qipv6); | |
7432 | #endif | |
7433 | Qdatagram = intern_c_string ("datagram"); | |
7434 | staticpro (&Qdatagram); | |
7435 | Qseqpacket = intern_c_string ("seqpacket"); | |
7436 | staticpro (&Qseqpacket); | |
934e2a68 | 7437 | |
f388c88a EZ |
7438 | QCport = intern_c_string (":port"); |
7439 | staticpro (&QCport); | |
7440 | QCspeed = intern_c_string (":speed"); | |
7441 | staticpro (&QCspeed); | |
7442 | QCprocess = intern_c_string (":process"); | |
7443 | staticpro (&QCprocess); | |
934e2a68 | 7444 | |
f388c88a EZ |
7445 | QCbytesize = intern_c_string (":bytesize"); |
7446 | staticpro (&QCbytesize); | |
7447 | QCstopbits = intern_c_string (":stopbits"); | |
7448 | staticpro (&QCstopbits); | |
7449 | QCparity = intern_c_string (":parity"); | |
7450 | staticpro (&QCparity); | |
7451 | Qodd = intern_c_string ("odd"); | |
7452 | staticpro (&Qodd); | |
7453 | Qeven = intern_c_string ("even"); | |
7454 | staticpro (&Qeven); | |
7455 | QCflowcontrol = intern_c_string (":flowcontrol"); | |
7456 | staticpro (&QCflowcontrol); | |
7457 | Qhw = intern_c_string ("hw"); | |
7458 | staticpro (&Qhw); | |
7459 | Qsw = intern_c_string ("sw"); | |
7460 | staticpro (&Qsw); | |
7461 | QCsummary = intern_c_string (":summary"); | |
7462 | staticpro (&QCsummary); | |
934e2a68 | 7463 | |
f388c88a EZ |
7464 | Qreal = intern_c_string ("real"); |
7465 | staticpro (&Qreal); | |
7466 | Qnetwork = intern_c_string ("network"); | |
7467 | staticpro (&Qnetwork); | |
7468 | Qserial = intern_c_string ("serial"); | |
7469 | staticpro (&Qserial); | |
7470 | QCbuffer = intern_c_string (":buffer"); | |
7471 | staticpro (&QCbuffer); | |
7472 | QChost = intern_c_string (":host"); | |
7473 | staticpro (&QChost); | |
7474 | QCservice = intern_c_string (":service"); | |
7475 | staticpro (&QCservice); | |
7476 | QClocal = intern_c_string (":local"); | |
7477 | staticpro (&QClocal); | |
7478 | QCremote = intern_c_string (":remote"); | |
7479 | staticpro (&QCremote); | |
7480 | QCcoding = intern_c_string (":coding"); | |
7481 | staticpro (&QCcoding); | |
7482 | QCserver = intern_c_string (":server"); | |
7483 | staticpro (&QCserver); | |
7484 | QCnowait = intern_c_string (":nowait"); | |
7485 | staticpro (&QCnowait); | |
7486 | QCsentinel = intern_c_string (":sentinel"); | |
7487 | staticpro (&QCsentinel); | |
7488 | QClog = intern_c_string (":log"); | |
7489 | staticpro (&QClog); | |
7490 | QCnoquery = intern_c_string (":noquery"); | |
7491 | staticpro (&QCnoquery); | |
7492 | QCstop = intern_c_string (":stop"); | |
7493 | staticpro (&QCstop); | |
7494 | QCoptions = intern_c_string (":options"); | |
7495 | staticpro (&QCoptions); | |
7496 | QCplist = intern_c_string (":plist"); | |
7497 | staticpro (&QCplist); | |
934e2a68 | 7498 | |
f388c88a EZ |
7499 | Qlast_nonmenu_event = intern_c_string ("last-nonmenu-event"); |
7500 | staticpro (&Qlast_nonmenu_event); | |
934e2a68 | 7501 | |
f388c88a EZ |
7502 | staticpro (&Vprocess_alist); |
7503 | #ifdef SIGCHLD | |
7504 | staticpro (&deleted_pid_list); | |
7505 | #endif | |
934e2a68 | 7506 | |
f388c88a | 7507 | #endif /* subprocesses */ |
6720a7fb | 7508 | |
d67b4f80 | 7509 | QCname = intern_c_string (":name"); |
8c57b2e5 | 7510 | staticpro (&QCname); |
d67b4f80 | 7511 | QCtype = intern_c_string (":type"); |
6a1bab0e | 7512 | staticpro (&QCtype); |
f388c88a | 7513 | |
d67b4f80 | 7514 | Qeuid = intern_c_string ("euid"); |
6a1bab0e | 7515 | staticpro (&Qeuid); |
d67b4f80 | 7516 | Qegid = intern_c_string ("egid"); |
6a1bab0e | 7517 | staticpro (&Qegid); |
d67b4f80 | 7518 | Quser = intern_c_string ("user"); |
6a1bab0e | 7519 | staticpro (&Quser); |
d67b4f80 | 7520 | Qgroup = intern_c_string ("group"); |
6a1bab0e | 7521 | staticpro (&Qgroup); |
d67b4f80 | 7522 | Qcomm = intern_c_string ("comm"); |
6a1bab0e | 7523 | staticpro (&Qcomm); |
d67b4f80 | 7524 | Qstate = intern_c_string ("state"); |
6a1bab0e | 7525 | staticpro (&Qstate); |
d67b4f80 | 7526 | Qppid = intern_c_string ("ppid"); |
6a1bab0e | 7527 | staticpro (&Qppid); |
d67b4f80 | 7528 | Qpgrp = intern_c_string ("pgrp"); |
6a1bab0e | 7529 | staticpro (&Qpgrp); |
d67b4f80 | 7530 | Qsess = intern_c_string ("sess"); |
6a1bab0e | 7531 | staticpro (&Qsess); |
d67b4f80 | 7532 | Qttname = intern_c_string ("ttname"); |
6a1bab0e | 7533 | staticpro (&Qttname); |
d67b4f80 | 7534 | Qtpgid = intern_c_string ("tpgid"); |
6a1bab0e | 7535 | staticpro (&Qtpgid); |
d67b4f80 | 7536 | Qminflt = intern_c_string ("minflt"); |
6a1bab0e | 7537 | staticpro (&Qminflt); |
d67b4f80 | 7538 | Qmajflt = intern_c_string ("majflt"); |
6a1bab0e | 7539 | staticpro (&Qmajflt); |
d67b4f80 | 7540 | Qcminflt = intern_c_string ("cminflt"); |
6a1bab0e | 7541 | staticpro (&Qcminflt); |
d67b4f80 | 7542 | Qcmajflt = intern_c_string ("cmajflt"); |
6a1bab0e | 7543 | staticpro (&Qcmajflt); |
d67b4f80 | 7544 | Qutime = intern_c_string ("utime"); |
6a1bab0e | 7545 | staticpro (&Qutime); |
d67b4f80 | 7546 | Qstime = intern_c_string ("stime"); |
6a1bab0e | 7547 | staticpro (&Qstime); |
d67b4f80 | 7548 | Qtime = intern_c_string ("time"); |
6a1bab0e | 7549 | staticpro (&Qtime); |
d67b4f80 | 7550 | Qcutime = intern_c_string ("cutime"); |
6a1bab0e | 7551 | staticpro (&Qcutime); |
d67b4f80 | 7552 | Qcstime = intern_c_string ("cstime"); |
6a1bab0e | 7553 | staticpro (&Qcstime); |
d67b4f80 | 7554 | Qctime = intern_c_string ("ctime"); |
6a1bab0e | 7555 | staticpro (&Qctime); |
d67b4f80 | 7556 | Qpri = intern_c_string ("pri"); |
6a1bab0e | 7557 | staticpro (&Qpri); |
d67b4f80 | 7558 | Qnice = intern_c_string ("nice"); |
6a1bab0e | 7559 | staticpro (&Qnice); |
d67b4f80 | 7560 | Qthcount = intern_c_string ("thcount"); |
6a1bab0e | 7561 | staticpro (&Qthcount); |
d67b4f80 | 7562 | Qstart = intern_c_string ("start"); |
6a1bab0e | 7563 | staticpro (&Qstart); |
d67b4f80 | 7564 | Qvsize = intern_c_string ("vsize"); |
6a1bab0e | 7565 | staticpro (&Qvsize); |
d67b4f80 | 7566 | Qrss = intern_c_string ("rss"); |
6a1bab0e | 7567 | staticpro (&Qrss); |
d67b4f80 | 7568 | Qetime = intern_c_string ("etime"); |
6a1bab0e | 7569 | staticpro (&Qetime); |
d67b4f80 | 7570 | Qpcpu = intern_c_string ("pcpu"); |
6a1bab0e | 7571 | staticpro (&Qpcpu); |
d67b4f80 | 7572 | Qpmem = intern_c_string ("pmem"); |
6a1bab0e | 7573 | staticpro (&Qpmem); |
d67b4f80 | 7574 | Qargs = intern_c_string ("args"); |
6a1bab0e | 7575 | staticpro (&Qargs); |
9057ff80 | 7576 | |
f388c88a EZ |
7577 | DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes, |
7578 | doc: /* *Non-nil means delete processes immediately when they exit. | |
7579 | A value of nil means don't delete them until `list-processes' is run. */); | |
7580 | ||
7581 | delete_exited_processes = 1; | |
7582 | ||
462aa963 | 7583 | #ifdef subprocesses |
f388c88a EZ |
7584 | DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type, |
7585 | doc: /* Control type of device used to communicate with subprocesses. | |
7586 | Values are nil to use a pipe, or t or `pty' to use a pty. | |
7587 | The value has no effect if the system has no ptys or if all ptys are busy: | |
7588 | then a pipe is used in any case. | |
7589 | The value takes effect when `start-process' is called. */); | |
7590 | Vprocess_connection_type = Qt; | |
7591 | ||
7592 | #ifdef ADAPTIVE_READ_BUFFERING | |
7593 | DEFVAR_LISP ("process-adaptive-read-buffering", &Vprocess_adaptive_read_buffering, | |
7594 | doc: /* If non-nil, improve receive buffering by delaying after short reads. | |
7595 | On some systems, when Emacs reads the output from a subprocess, the output data | |
7596 | is read in very small blocks, potentially resulting in very poor performance. | |
7597 | This behavior can be remedied to some extent by setting this variable to a | |
7598 | non-nil value, as it will automatically delay reading from such processes, to | |
7599 | allow them to produce more output before Emacs tries to read it. | |
7600 | If the value is t, the delay is reset after each write to the process; any other | |
7601 | non-nil value means that the delay is not reset on write. | |
7602 | The variable takes effect when `start-process' is called. */); | |
7603 | Vprocess_adaptive_read_buffering = Qt; | |
7604 | #endif | |
7605 | ||
7606 | defsubr (&Sprocessp); | |
7607 | defsubr (&Sget_process); | |
7608 | defsubr (&Sdelete_process); | |
7609 | defsubr (&Sprocess_status); | |
7610 | defsubr (&Sprocess_exit_status); | |
7611 | defsubr (&Sprocess_id); | |
7612 | defsubr (&Sprocess_name); | |
7613 | defsubr (&Sprocess_tty_name); | |
7614 | defsubr (&Sprocess_command); | |
7615 | defsubr (&Sset_process_buffer); | |
7616 | defsubr (&Sprocess_buffer); | |
7617 | defsubr (&Sprocess_mark); | |
7618 | defsubr (&Sset_process_filter); | |
7619 | defsubr (&Sprocess_filter); | |
7620 | defsubr (&Sset_process_sentinel); | |
7621 | defsubr (&Sprocess_sentinel); | |
7622 | defsubr (&Sset_process_window_size); | |
7623 | defsubr (&Sset_process_inherit_coding_system_flag); | |
7624 | defsubr (&Sset_process_query_on_exit_flag); | |
7625 | defsubr (&Sprocess_query_on_exit_flag); | |
7626 | defsubr (&Sprocess_contact); | |
7627 | defsubr (&Sprocess_plist); | |
7628 | defsubr (&Sset_process_plist); | |
7629 | defsubr (&Slist_processes); | |
7630 | defsubr (&Sprocess_list); | |
7631 | defsubr (&Sstart_process); | |
f388c88a EZ |
7632 | defsubr (&Sserial_process_configure); |
7633 | defsubr (&Smake_serial_process); | |
f388c88a EZ |
7634 | defsubr (&Sset_network_process_option); |
7635 | defsubr (&Smake_network_process); | |
7636 | defsubr (&Sformat_network_address); | |
fce70521 | 7637 | #if defined(HAVE_NET_IF_H) && defined(HAVE_SYS_IOCTL_H) |
f388c88a EZ |
7638 | #ifdef SIOCGIFCONF |
7639 | defsubr (&Snetwork_interface_list); | |
7640 | #endif | |
7641 | #if defined(SIOCGIFADDR) || defined(SIOCGIFHWADDR) || defined(SIOCGIFFLAGS) | |
7642 | defsubr (&Snetwork_interface_info); | |
7643 | #endif | |
fce70521 | 7644 | #endif /* defined(HAVE_NET_IF_H) && defined(HAVE_SYS_IOCTL_H) */ |
f388c88a EZ |
7645 | #ifdef DATAGRAM_SOCKETS |
7646 | defsubr (&Sprocess_datagram_address); | |
7647 | defsubr (&Sset_process_datagram_address); | |
7648 | #endif | |
7649 | defsubr (&Saccept_process_output); | |
7650 | defsubr (&Sprocess_send_region); | |
7651 | defsubr (&Sprocess_send_string); | |
7652 | defsubr (&Sinterrupt_process); | |
7653 | defsubr (&Skill_process); | |
7654 | defsubr (&Squit_process); | |
7655 | defsubr (&Sstop_process); | |
7656 | defsubr (&Scontinue_process); | |
7657 | defsubr (&Sprocess_running_child_p); | |
7658 | defsubr (&Sprocess_send_eof); | |
7659 | defsubr (&Ssignal_process); | |
7660 | defsubr (&Swaiting_for_user_input_p); | |
7661 | defsubr (&Sprocess_type); | |
7662 | defsubr (&Sset_process_coding_system); | |
7663 | defsubr (&Sprocess_coding_system); | |
7664 | defsubr (&Sset_process_filter_multibyte); | |
7665 | defsubr (&Sprocess_filter_multibyte_p); | |
7666 | ||
7667 | #endif /* subprocesses */ | |
7668 | ||
6720a7fb | 7669 | defsubr (&Sget_buffer_process); |
52a1b894 | 7670 | defsubr (&Sprocess_inherit_coding_system_flag); |
934e2a68 | 7671 | defsubr (&Slist_system_processes); |
a20878b6 | 7672 | defsubr (&Sprocess_attributes); |
6720a7fb JB |
7673 | } |
7674 | ||
6b61353c KH |
7675 | /* arch-tag: 3706c011-7b9a-4117-bd4f-59e7f701a4c4 |
7676 | (do not change this comment) */ |