Commit | Line | Data |
---|---|---|
d0d6b7c5 | 1 | /* Asynchronous subprocess control for GNU Emacs. |
95df8112 GM |
2 | |
3 | Copyright (C) 1985-1988, 1993-1996, 1998-1999, 2001-2011 | |
4 | 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> | |
6c60eb9f | 27 | #include <sys/types.h> /* Some typedefs are used in sys/file.h. */ |
d0d6b7c5 JB |
28 | #include <sys/file.h> |
29 | #include <sys/stat.h> | |
d7306fe6 | 30 | #include <setjmp.h> |
934e2a68 | 31 | |
93b4f699 | 32 | #include <unistd.h> |
e98d950b | 33 | #include <fcntl.h> |
e98d950b | 34 | |
0898ca10 JB |
35 | #include "lisp.h" |
36 | ||
f388c88a EZ |
37 | /* Only MS-DOS does not define `subprocesses'. */ |
38 | #ifdef subprocesses | |
39 | ||
d0d6b7c5 JB |
40 | #include <sys/socket.h> |
41 | #include <netdb.h> | |
42 | #include <netinet/in.h> | |
43 | #include <arpa/inet.h> | |
e690ca94 KS |
44 | |
45 | /* Are local (unix) sockets supported? */ | |
4624371d | 46 | #if defined (HAVE_SYS_UN_H) |
e690ca94 KS |
47 | #if !defined (AF_LOCAL) && defined (AF_UNIX) |
48 | #define AF_LOCAL AF_UNIX | |
49 | #endif | |
50 | #ifdef AF_LOCAL | |
51 | #define HAVE_LOCAL_SOCKETS | |
52 | #include <sys/un.h> | |
53 | #endif | |
54 | #endif | |
d0d6b7c5 | 55 | |
d0d6b7c5 | 56 | #include <sys/ioctl.h> |
32bc6709 DN |
57 | #if defined(HAVE_NET_IF_H) |
58 | #include <net/if.h> | |
59 | #endif /* HAVE_NET_IF_H */ | |
d0d6b7c5 JB |
60 | |
61 | #ifdef NEED_BSDTTY | |
62 | #include <bsdtty.h> | |
63 | #endif | |
64 | ||
08116b48 CY |
65 | #ifdef HAVE_RES_INIT |
66 | #include <netinet/in.h> | |
67 | #include <arpa/nameser.h> | |
68 | #include <resolv.h> | |
69 | #endif | |
70 | ||
3d608a86 J |
71 | #ifdef HAVE_UTIL_H |
72 | #include <util.h> | |
73 | #endif | |
74 | ||
9bf58201 DN |
75 | #ifdef HAVE_PTY_H |
76 | #include <pty.h> | |
77 | #endif | |
78 | ||
f388c88a EZ |
79 | #endif /* subprocesses */ |
80 | ||
d0d6b7c5 | 81 | #include "systime.h" |
36ebaafa | 82 | #include "systty.h" |
d0d6b7c5 | 83 | |
d0d6b7c5 JB |
84 | #include "window.h" |
85 | #include "buffer.h" | |
5bbf78c1 | 86 | #include "character.h" |
0fa1789e | 87 | #include "coding.h" |
d0d6b7c5 | 88 | #include "process.h" |
428a555e | 89 | #include "frame.h" |
d0d6b7c5 JB |
90 | #include "termhooks.h" |
91 | #include "termopts.h" | |
92 | #include "commands.h" | |
3ec68006 | 93 | #include "keyboard.h" |
ececcbec | 94 | #include "blockinput.h" |
dfcf069d | 95 | #include "dispextern.h" |
e0016554 | 96 | #include "composite.h" |
30904ab7 | 97 | #include "atimer.h" |
f388c88a EZ |
98 | #include "sysselect.h" |
99 | #include "syssignal.h" | |
100 | #include "syswait.h" | |
8af55556 TZ |
101 | #ifdef HAVE_GNUTLS |
102 | #include "gnutls.h" | |
103 | #endif | |
d0d6b7c5 | 104 | |
872870b2 JD |
105 | #if defined (USE_GTK) || defined (HAVE_GCONF) |
106 | #include "xgselect.h" | |
107 | #endif /* defined (USE_GTK) || defined (HAVE_GCONF) */ | |
3d608a86 J |
108 | #ifdef HAVE_NS |
109 | #include "nsterm.h" | |
110 | #endif | |
57507bf8 | 111 | |
fdb183d6 DN |
112 | Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname, Qtpgid; |
113 | Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime, Qcstime; | |
114 | Lisp_Object Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs; | |
115 | Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtime, Qctime; | |
116 | Lisp_Object QCname, QCtype; | |
117 | \f | |
118 | /* Non-zero if keyboard input is on hold, zero otherwise. */ | |
119 | ||
120 | static int kbd_is_on_hold; | |
121 | ||
fdb183d6 DN |
122 | /* Nonzero means don't run process sentinels. This is used |
123 | when exiting. */ | |
124 | int inhibit_sentinels; | |
125 | ||
f388c88a EZ |
126 | #ifdef subprocesses |
127 | ||
dd2281ae | 128 | Lisp_Object Qprocessp; |
955cbe7b PE |
129 | static Lisp_Object Qrun, Qstop, Qsignal; |
130 | static Lisp_Object Qopen, Qclosed, Qconnect, Qfailed, Qlisten; | |
131 | Lisp_Object Qlocal; | |
132 | static Lisp_Object Qipv4, Qdatagram, Qseqpacket; | |
133 | static Lisp_Object Qreal, Qnetwork, Qserial; | |
e1652a86 | 134 | #ifdef AF_INET6 |
955cbe7b | 135 | static Lisp_Object Qipv6; |
e1652a86 | 136 | #endif |
955cbe7b PE |
137 | static Lisp_Object QCport, QCprocess; |
138 | Lisp_Object QCspeed; | |
d888760c GM |
139 | Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven; |
140 | Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary; | |
955cbe7b PE |
141 | static Lisp_Object QCbuffer, QChost, QCservice; |
142 | static Lisp_Object QClocal, QCremote, QCcoding; | |
143 | static Lisp_Object QCserver, QCnowait, QCnoquery, QCstop; | |
144 | static Lisp_Object QCsentinel, QClog, QCoptions, QCplist; | |
145 | static Lisp_Object Qlast_nonmenu_event; | |
3635ecad JR |
146 | /* QCfamily is declared and initialized in xfaces.c, |
147 | QCfilter in keyboard.c. */ | |
148 | extern Lisp_Object QCfamily, QCfilter; | |
149 | ||
d0d6b7c5 JB |
150 | /* Qexit is declared and initialized in eval.c. */ |
151 | ||
e0f712ba AC |
152 | /* QCfamily is defined in xfaces.c. */ |
153 | extern Lisp_Object QCfamily; | |
154 | /* QCfilter is defined in keyboard.c. */ | |
155 | extern Lisp_Object QCfilter; | |
156 | ||
d888760c GM |
157 | #define NETCONN_P(p) (EQ (XPROCESS (p)->type, Qnetwork)) |
158 | #define NETCONN1_P(p) (EQ ((p)->type, Qnetwork)) | |
159 | #define SERIALCONN_P(p) (EQ (XPROCESS (p)->type, Qserial)) | |
160 | #define SERIALCONN1_P(p) (EQ ((p)->type, Qserial)) | |
d0d6b7c5 | 161 | |
5f0929a7 RS |
162 | #ifndef HAVE_H_ERRNO |
163 | extern int h_errno; | |
164 | #endif | |
165 | ||
d0d6b7c5 | 166 | /* Number of events of change of status of a process. */ |
40ccffa6 | 167 | static int process_tick; |
d0d6b7c5 | 168 | /* Number of events for which the user or sentinel has been notified. */ |
40ccffa6 | 169 | static int update_tick; |
d0d6b7c5 | 170 | |
dd2a17ab KS |
171 | /* Define NON_BLOCKING_CONNECT if we can support non-blocking connects. */ |
172 | ||
82d6e50b | 173 | /* Only W32 has this, it really means that select can't take write mask. */ |
dd2a17ab KS |
174 | #ifdef BROKEN_NON_BLOCKING_CONNECT |
175 | #undef NON_BLOCKING_CONNECT | |
82d6e50b | 176 | #define SELECT_CANT_DO_WRITE_MASK |
dd2a17ab KS |
177 | #else |
178 | #ifndef NON_BLOCKING_CONNECT | |
dd2a17ab KS |
179 | #ifdef HAVE_SELECT |
180 | #if defined (HAVE_GETPEERNAME) || defined (GNU_LINUX) | |
181 | #if defined (O_NONBLOCK) || defined (O_NDELAY) | |
182 | #if defined (EWOULDBLOCK) || defined (EINPROGRESS) | |
183 | #define NON_BLOCKING_CONNECT | |
184 | #endif /* EWOULDBLOCK || EINPROGRESS */ | |
185 | #endif /* O_NONBLOCK || O_NDELAY */ | |
186 | #endif /* HAVE_GETPEERNAME || GNU_LINUX */ | |
187 | #endif /* HAVE_SELECT */ | |
dd2a17ab KS |
188 | #endif /* NON_BLOCKING_CONNECT */ |
189 | #endif /* BROKEN_NON_BLOCKING_CONNECT */ | |
190 | ||
e690ca94 KS |
191 | /* Define DATAGRAM_SOCKETS if datagrams can be used safely on |
192 | this system. We need to read full packets, so we need a | |
193 | "non-destructive" select. So we require either native select, | |
194 | or emulation of select using FIONREAD. */ | |
195 | ||
e690ca94 KS |
196 | #ifdef BROKEN_DATAGRAM_SOCKETS |
197 | #undef DATAGRAM_SOCKETS | |
198 | #else | |
199 | #ifndef DATAGRAM_SOCKETS | |
e690ca94 KS |
200 | #if defined (HAVE_SELECT) || defined (FIONREAD) |
201 | #if defined (HAVE_SENDTO) && defined (HAVE_RECVFROM) && defined (EMSGSIZE) | |
202 | #define DATAGRAM_SOCKETS | |
203 | #endif /* HAVE_SENDTO && HAVE_RECVFROM && EMSGSIZE */ | |
204 | #endif /* HAVE_SELECT || FIONREAD */ | |
e690ca94 KS |
205 | #endif /* DATAGRAM_SOCKETS */ |
206 | #endif /* BROKEN_DATAGRAM_SOCKETS */ | |
207 | ||
f00c449b SM |
208 | #if defined HAVE_LOCAL_SOCKETS && defined DATAGRAM_SOCKETS |
209 | # define HAVE_SEQPACKET | |
210 | #endif | |
211 | ||
6b61353c KH |
212 | #if !defined (ADAPTIVE_READ_BUFFERING) && !defined (NO_ADAPTIVE_READ_BUFFERING) |
213 | #ifdef EMACS_HAS_USECS | |
214 | #define ADAPTIVE_READ_BUFFERING | |
215 | #endif | |
216 | #endif | |
217 | ||
218 | #ifdef ADAPTIVE_READ_BUFFERING | |
219 | #define READ_OUTPUT_DELAY_INCREMENT 10000 | |
220 | #define READ_OUTPUT_DELAY_MAX (READ_OUTPUT_DELAY_INCREMENT * 5) | |
221 | #define READ_OUTPUT_DELAY_MAX_MAX (READ_OUTPUT_DELAY_INCREMENT * 7) | |
222 | ||
db853b7a KS |
223 | /* Number of processes which have a non-zero read_output_delay, |
224 | and therefore might be delayed for adaptive read buffering. */ | |
6b61353c KH |
225 | |
226 | static int process_output_delay_count; | |
227 | ||
db853b7a | 228 | /* Non-zero if any process has non-nil read_output_skip. */ |
6b61353c KH |
229 | |
230 | static int process_output_skip; | |
231 | ||
6b61353c KH |
232 | #else |
233 | #define process_output_delay_count 0 | |
234 | #endif | |
235 | ||
cd64ea1d | 236 | static Lisp_Object Fget_process (Lisp_Object); |
40ccffa6 | 237 | static void create_process (Lisp_Object, char **, Lisp_Object); |
006c5daa | 238 | #ifdef SIGIO |
f57e2426 | 239 | static int keyboard_bit_set (SELECT_TYPE *); |
006c5daa | 240 | #endif |
f57e2426 J |
241 | static void deactivate_process (Lisp_Object); |
242 | static void status_notify (struct Lisp_Process *); | |
243 | static int read_process_output (Lisp_Object, int); | |
244 | static void create_pty (Lisp_Object); | |
41d03b9a | 245 | |
583dcae4 | 246 | /* If we support a window system, turn on the code to poll periodically |
44ade2e9 | 247 | to detect C-g. It isn't actually used when doing interrupt input. */ |
583dcae4 | 248 | #ifdef HAVE_WINDOW_SYSTEM |
44ade2e9 RS |
249 | #define POLL_FOR_INPUT |
250 | #endif | |
251 | ||
d3da34e0 JB |
252 | static Lisp_Object get_process (register Lisp_Object name); |
253 | static void exec_sentinel (Lisp_Object proc, Lisp_Object reason); | |
84af9896 | 254 | |
f388c88a EZ |
255 | /* Mask of bits indicating the descriptors that we wait for input on. */ |
256 | ||
257 | static SELECT_TYPE input_wait_mask; | |
258 | ||
994d9841 | 259 | /* Mask that excludes keyboard input descriptor(s). */ |
a69281ff RS |
260 | |
261 | static SELECT_TYPE non_keyboard_wait_mask; | |
262 | ||
994d9841 | 263 | /* Mask that excludes process input descriptor(s). */ |
b5dc1c83 RS |
264 | |
265 | static SELECT_TYPE non_process_wait_mask; | |
266 | ||
3fad2ad2 | 267 | /* Mask for selecting for write. */ |
994d9841 | 268 | |
3fad2ad2 | 269 | static SELECT_TYPE write_mask; |
994d9841 | 270 | |
bad49fc7 | 271 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
272 | /* Mask of bits indicating the descriptors that we wait for connect to |
273 | complete on. Once they complete, they are removed from this mask | |
274 | and added to the input_wait_mask and non_keyboard_wait_mask. */ | |
275 | ||
276 | static SELECT_TYPE connect_wait_mask; | |
277 | ||
278 | /* Number of bits set in connect_wait_mask. */ | |
279 | static int num_pending_connects; | |
f388c88a | 280 | #endif /* NON_BLOCKING_CONNECT */ |
bad49fc7 | 281 | |
7d0e672e RS |
282 | /* The largest descriptor currently in use for a process object. */ |
283 | static int max_process_desc; | |
284 | ||
3fad2ad2 J |
285 | /* The largest descriptor currently in use for input. */ |
286 | static int max_input_desc; | |
994d9841 | 287 | |
d0d6b7c5 | 288 | /* Indexed by descriptor, gives the process (if any) for that descriptor */ |
40ccffa6 | 289 | static Lisp_Object chan_process[MAXDESC]; |
d0d6b7c5 JB |
290 | |
291 | /* Alist of elements (NAME . PROCESS) */ | |
40ccffa6 | 292 | static Lisp_Object Vprocess_alist; |
d0d6b7c5 JB |
293 | |
294 | /* Buffered-ahead input char from process, indexed by channel. | |
295 | -1 means empty (no char is buffered). | |
296 | Used on sys V where the only way to tell if there is any | |
297 | output from the process is to read at least one char. | |
298 | Always -1 on systems that support FIONREAD. */ | |
299 | ||
40ccffa6 | 300 | static int proc_buffered_char[MAXDESC]; |
dd2281ae | 301 | |
0fa1789e | 302 | /* Table of `struct coding-system' for each process. */ |
c7580538 KH |
303 | static struct coding_system *proc_decode_coding_system[MAXDESC]; |
304 | static struct coding_system *proc_encode_coding_system[MAXDESC]; | |
0fa1789e | 305 | |
e690ca94 KS |
306 | #ifdef DATAGRAM_SOCKETS |
307 | /* Table of `partner address' for datagram sockets. */ | |
40ccffa6 | 308 | static struct sockaddr_and_len { |
e690ca94 KS |
309 | struct sockaddr *sa; |
310 | int len; | |
311 | } datagram_address[MAXDESC]; | |
312 | #define DATAGRAM_CHAN_P(chan) (datagram_address[chan].sa != 0) | |
60f0fb11 | 313 | #define DATAGRAM_CONN_P(proc) (PROCESSP (proc) && datagram_address[XPROCESS (proc)->infd].sa != 0) |
e690ca94 KS |
314 | #else |
315 | #define DATAGRAM_CHAN_P(chan) (0) | |
316 | #define DATAGRAM_CONN_P(proc) (0) | |
317 | #endif | |
318 | ||
93b4f699 RS |
319 | /* Maximum number of bytes to send to a pty without an eof. */ |
320 | static int pty_max_bytes; | |
3b9a3dfa | 321 | |
d0d6b7c5 | 322 | \f |
3fad2ad2 | 323 | |
40ccffa6 | 324 | static struct fd_callback_data |
3fad2ad2 J |
325 | { |
326 | fd_callback func; | |
327 | void *data; | |
328 | #define FOR_READ 1 | |
329 | #define FOR_WRITE 2 | |
330 | int condition; /* mask of the defines above. */ | |
331 | } fd_callback_info[MAXDESC]; | |
332 | ||
333 | ||
334 | /* Add a file descriptor FD to be monitored for when read is possible. | |
335 | When read is possible, call FUNC with argument DATA. */ | |
336 | ||
337 | void | |
338 | add_read_fd (int fd, fd_callback func, void *data) | |
339 | { | |
340 | xassert (fd < MAXDESC); | |
341 | add_keyboard_wait_descriptor (fd); | |
342 | ||
343 | fd_callback_info[fd].func = func; | |
344 | fd_callback_info[fd].data = data; | |
345 | fd_callback_info[fd].condition |= FOR_READ; | |
346 | } | |
347 | ||
348 | /* Stop monitoring file descriptor FD for when read is possible. */ | |
349 | ||
350 | void | |
351 | delete_read_fd (int fd) | |
352 | { | |
353 | xassert (fd < MAXDESC); | |
354 | delete_keyboard_wait_descriptor (fd); | |
355 | ||
356 | fd_callback_info[fd].condition &= ~FOR_READ; | |
357 | if (fd_callback_info[fd].condition == 0) | |
358 | { | |
359 | fd_callback_info[fd].func = 0; | |
360 | fd_callback_info[fd].data = 0; | |
361 | } | |
362 | } | |
363 | ||
364 | /* Add a file descriptor FD to be monitored for when write is possible. | |
365 | When write is possible, call FUNC with argument DATA. */ | |
366 | ||
367 | void | |
368 | add_write_fd (int fd, fd_callback func, void *data) | |
369 | { | |
370 | xassert (fd < MAXDESC); | |
371 | FD_SET (fd, &write_mask); | |
372 | if (fd > max_input_desc) | |
373 | max_input_desc = fd; | |
374 | ||
375 | fd_callback_info[fd].func = func; | |
376 | fd_callback_info[fd].data = data; | |
377 | fd_callback_info[fd].condition |= FOR_WRITE; | |
378 | } | |
379 | ||
380 | /* Stop monitoring file descriptor FD for when write is possible. */ | |
381 | ||
382 | void | |
383 | delete_write_fd (int fd) | |
384 | { | |
385 | int lim = max_input_desc; | |
386 | ||
387 | xassert (fd < MAXDESC); | |
388 | FD_CLR (fd, &write_mask); | |
389 | fd_callback_info[fd].condition &= ~FOR_WRITE; | |
390 | if (fd_callback_info[fd].condition == 0) | |
391 | { | |
392 | fd_callback_info[fd].func = 0; | |
393 | fd_callback_info[fd].data = 0; | |
394 | ||
395 | if (fd == max_input_desc) | |
396 | for (fd = lim; fd >= 0; fd--) | |
397 | if (FD_ISSET (fd, &input_wait_mask) || FD_ISSET (fd, &write_mask)) | |
398 | { | |
399 | max_input_desc = fd; | |
400 | break; | |
401 | } | |
51b59d79 | 402 | |
3fad2ad2 J |
403 | } |
404 | } | |
405 | ||
406 | \f | |
d0d6b7c5 JB |
407 | /* Compute the Lisp form of the process status, p->status, from |
408 | the numeric status that was returned by `wait'. */ | |
409 | ||
bba104c1 | 410 | static Lisp_Object status_convert (int); |
f9738840 | 411 | |
ff6daed3 | 412 | static void |
d3da34e0 | 413 | update_status (struct Lisp_Process *p) |
d0d6b7c5 | 414 | { |
6bfd98e7 | 415 | eassert (p->raw_status_new); |
bba104c1 | 416 | p->status = status_convert (p->raw_status); |
6bfd98e7 | 417 | p->raw_status_new = 0; |
d0d6b7c5 JB |
418 | } |
419 | ||
177c0ea7 | 420 | /* Convert a process status word in Unix format to |
d0d6b7c5 JB |
421 | the list that we use internally. */ |
422 | ||
ff6daed3 | 423 | static Lisp_Object |
bba104c1 | 424 | status_convert (int w) |
d0d6b7c5 JB |
425 | { |
426 | if (WIFSTOPPED (w)) | |
427 | return Fcons (Qstop, Fcons (make_number (WSTOPSIG (w)), Qnil)); | |
428 | else if (WIFEXITED (w)) | |
429 | return Fcons (Qexit, Fcons (make_number (WRETCODE (w)), | |
430 | WCOREDUMP (w) ? Qt : Qnil)); | |
431 | else if (WIFSIGNALED (w)) | |
432 | return Fcons (Qsignal, Fcons (make_number (WTERMSIG (w)), | |
433 | WCOREDUMP (w) ? Qt : Qnil)); | |
434 | else | |
435 | return Qrun; | |
436 | } | |
437 | ||
438 | /* Given a status-list, extract the three pieces of information | |
439 | and store them individually through the three pointers. */ | |
440 | ||
ff6daed3 | 441 | static void |
d3da34e0 | 442 | decode_status (Lisp_Object l, Lisp_Object *symbol, int *code, int *coredump) |
d0d6b7c5 JB |
443 | { |
444 | Lisp_Object tem; | |
445 | ||
bcd69aea | 446 | if (SYMBOLP (l)) |
d0d6b7c5 JB |
447 | { |
448 | *symbol = l; | |
449 | *code = 0; | |
450 | *coredump = 0; | |
451 | } | |
452 | else | |
453 | { | |
70949dac KR |
454 | *symbol = XCAR (l); |
455 | tem = XCDR (l); | |
456 | *code = XFASTINT (XCAR (tem)); | |
457 | tem = XCDR (tem); | |
d0d6b7c5 JB |
458 | *coredump = !NILP (tem); |
459 | } | |
460 | } | |
461 | ||
462 | /* Return a string describing a process status list. */ | |
463 | ||
116c423c | 464 | static Lisp_Object |
d3da34e0 | 465 | status_message (struct Lisp_Process *p) |
d0d6b7c5 | 466 | { |
116c423c | 467 | Lisp_Object status = p->status; |
d0d6b7c5 JB |
468 | Lisp_Object symbol; |
469 | int code, coredump; | |
470 | Lisp_Object string, string2; | |
471 | ||
472 | decode_status (status, &symbol, &code, &coredump); | |
473 | ||
474 | if (EQ (symbol, Qsignal) || EQ (symbol, Qstop)) | |
475 | { | |
68c45bf0 | 476 | char *signame; |
ca9c0567 | 477 | synchronize_system_messages_locale (); |
68c45bf0 | 478 | signame = strsignal (code); |
b97ad9ea | 479 | if (signame == 0) |
66bd43d1 KH |
480 | string = build_string ("unknown"); |
481 | else | |
482 | { | |
483 | int c1, c2; | |
484 | ||
485 | string = make_unibyte_string (signame, strlen (signame)); | |
486 | if (! NILP (Vlocale_coding_system)) | |
487 | string = (code_convert_string_norecord | |
488 | (string, Vlocale_coding_system, 0)); | |
42a5b22f | 489 | c1 = STRING_CHAR (SDATA (string)); |
5da9919f | 490 | c2 = downcase (c1); |
66bd43d1 | 491 | if (c1 != c2) |
4735b74e | 492 | Faset (string, make_number (0), make_number (c2)); |
66bd43d1 | 493 | } |
d0d6b7c5 | 494 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
d0d6b7c5 JB |
495 | return concat2 (string, string2); |
496 | } | |
497 | else if (EQ (symbol, Qexit)) | |
498 | { | |
116c423c KS |
499 | if (NETCONN1_P (p)) |
500 | return build_string (code == 0 ? "deleted\n" : "connection broken by remote peer\n"); | |
d0d6b7c5 JB |
501 | if (code == 0) |
502 | return build_string ("finished\n"); | |
f2980264 | 503 | string = Fnumber_to_string (make_number (code)); |
d0d6b7c5 | 504 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
e690ca94 KS |
505 | return concat3 (build_string ("exited abnormally with code "), |
506 | string, string2); | |
d0d6b7c5 | 507 | } |
dd2a17ab KS |
508 | else if (EQ (symbol, Qfailed)) |
509 | { | |
510 | string = Fnumber_to_string (make_number (code)); | |
511 | string2 = build_string ("\n"); | |
e690ca94 KS |
512 | return concat3 (build_string ("failed with code "), |
513 | string, string2); | |
dd2a17ab | 514 | } |
d0d6b7c5 JB |
515 | else |
516 | return Fcopy_sequence (Fsymbol_name (symbol)); | |
517 | } | |
518 | \f | |
519 | #ifdef HAVE_PTYS | |
d0d6b7c5 | 520 | |
9bf58201 DN |
521 | /* The file name of the pty opened by allocate_pty. */ |
522 | static char pty_name[24]; | |
523 | ||
875e6b94 KH |
524 | /* Open an available pty, returning a file descriptor. |
525 | Return -1 on failure. | |
526 | The file name of the terminal corresponding to the pty | |
527 | is left in the variable pty_name. */ | |
528 | ||
ff6daed3 | 529 | static int |
d3da34e0 | 530 | allocate_pty (void) |
d0d6b7c5 | 531 | { |
d0d6b7c5 JB |
532 | int fd; |
533 | ||
534 | #ifdef PTY_ITERATION | |
535 | PTY_ITERATION | |
536 | #else | |
be02381c | 537 | register int c, i; |
d0d6b7c5 JB |
538 | for (c = FIRST_PTY_LETTER; c <= 'z'; c++) |
539 | for (i = 0; i < 16; i++) | |
540 | #endif | |
541 | { | |
542 | #ifdef PTY_NAME_SPRINTF | |
543 | PTY_NAME_SPRINTF | |
d0d6b7c5 JB |
544 | #else |
545 | sprintf (pty_name, "/dev/pty%c%x", c, i); | |
d0d6b7c5 JB |
546 | #endif /* no PTY_NAME_SPRINTF */ |
547 | ||
4d7c105e RS |
548 | #ifdef PTY_OPEN |
549 | PTY_OPEN; | |
550 | #else /* no PTY_OPEN */ | |
34967d0f | 551 | { |
34967d0f SM |
552 | { /* Some systems name their pseudoterminals so that there are gaps in |
553 | the usual sequence - for example, on HP9000/S700 systems, there | |
554 | are no pseudoterminals with names ending in 'f'. So we wait for | |
555 | three failures in a row before deciding that we've reached the | |
556 | end of the ptys. */ | |
557 | int failed_count = 0; | |
57048744 | 558 | struct stat stb; |
f3d9532b | 559 | |
34967d0f SM |
560 | if (stat (pty_name, &stb) < 0) |
561 | { | |
562 | failed_count++; | |
563 | if (failed_count >= 3) | |
564 | return -1; | |
565 | } | |
566 | else | |
567 | failed_count = 0; | |
32676c08 | 568 | } |
34967d0f SM |
569 | # ifdef O_NONBLOCK |
570 | fd = emacs_open (pty_name, O_RDWR | O_NONBLOCK, 0); | |
571 | # else | |
572 | fd = emacs_open (pty_name, O_RDWR | O_NDELAY, 0); | |
573 | # endif | |
34967d0f | 574 | } |
4d7c105e | 575 | #endif /* no PTY_OPEN */ |
d0d6b7c5 JB |
576 | |
577 | if (fd >= 0) | |
578 | { | |
579 | /* check to make certain that both sides are available | |
580 | this avoids a nasty yet stupid bug in rlogins */ | |
581 | #ifdef PTY_TTY_NAME_SPRINTF | |
582 | PTY_TTY_NAME_SPRINTF | |
d0d6b7c5 | 583 | #else |
63136da6 | 584 | sprintf (pty_name, "/dev/tty%c%x", c, i); |
d0d6b7c5 | 585 | #endif /* no PTY_TTY_NAME_SPRINTF */ |
d0d6b7c5 JB |
586 | if (access (pty_name, 6) != 0) |
587 | { | |
68c45bf0 | 588 | emacs_close (fd); |
132d0475 | 589 | # ifndef __sgi |
d0d6b7c5 | 590 | continue; |
34967d0f | 591 | # else |
d0d6b7c5 | 592 | return -1; |
132d0475 | 593 | # endif /* __sgi */ |
d0d6b7c5 | 594 | } |
d0d6b7c5 JB |
595 | setup_pty (fd); |
596 | return fd; | |
597 | } | |
598 | } | |
599 | return -1; | |
600 | } | |
601 | #endif /* HAVE_PTYS */ | |
602 | \f | |
ff6daed3 | 603 | static Lisp_Object |
d3da34e0 | 604 | make_process (Lisp_Object name) |
d0d6b7c5 JB |
605 | { |
606 | register Lisp_Object val, tem, name1; | |
607 | register struct Lisp_Process *p; | |
608 | char suffix[10]; | |
609 | register int i; | |
610 | ||
98423852 | 611 | p = allocate_process (); |
23d6bb9c | 612 | |
60f0fb11 SM |
613 | p->infd = -1; |
614 | p->outfd = -1; | |
615 | p->tick = 0; | |
616 | p->update_tick = 0; | |
6bfd98e7 | 617 | p->pid = 0; |
fd41ad98 | 618 | p->pty_flag = 0; |
6bfd98e7 | 619 | p->raw_status_new = 0; |
d0d6b7c5 JB |
620 | p->status = Qrun; |
621 | p->mark = Fmake_marker (); | |
847c048e | 622 | p->kill_without_query = 0; |
d0d6b7c5 | 623 | |
6b61353c | 624 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
625 | p->adaptive_read_buffering = 0; |
626 | p->read_output_delay = 0; | |
627 | p->read_output_skip = 0; | |
6b61353c KH |
628 | #endif |
629 | ||
8af55556 TZ |
630 | #ifdef HAVE_GNUTLS |
631 | p->gnutls_initstage = GNUTLS_STAGE_EMPTY; | |
8ed70bf3 | 632 | p->gnutls_log_level = 0; |
df7fcaff | 633 | p->gnutls_p = 0; |
8af55556 TZ |
634 | #endif |
635 | ||
d0d6b7c5 JB |
636 | /* If name is already in use, modify it until it is unused. */ |
637 | ||
638 | name1 = name; | |
639 | for (i = 1; ; i++) | |
640 | { | |
641 | tem = Fget_process (name1); | |
642 | if (NILP (tem)) break; | |
643 | sprintf (suffix, "<%d>", i); | |
644 | name1 = concat2 (name, build_string (suffix)); | |
645 | } | |
646 | name = name1; | |
647 | p->name = name; | |
23d6bb9c | 648 | XSETPROCESS (val, p); |
d0d6b7c5 JB |
649 | Vprocess_alist = Fcons (Fcons (name, val), Vprocess_alist); |
650 | return val; | |
651 | } | |
652 | ||
ff6daed3 | 653 | static void |
d3da34e0 | 654 | remove_process (register Lisp_Object proc) |
d0d6b7c5 JB |
655 | { |
656 | register Lisp_Object pair; | |
657 | ||
658 | pair = Frassq (proc, Vprocess_alist); | |
659 | Vprocess_alist = Fdelq (pair, Vprocess_alist); | |
d0d6b7c5 JB |
660 | |
661 | deactivate_process (proc); | |
662 | } | |
03f04413 | 663 | |
d0d6b7c5 JB |
664 | \f |
665 | DEFUN ("processp", Fprocessp, Sprocessp, 1, 1, 0, | |
fdb82f93 | 666 | doc: /* Return t if OBJECT is a process. */) |
5842a27b | 667 | (Lisp_Object object) |
d0d6b7c5 | 668 | { |
4ee3e309 | 669 | return PROCESSP (object) ? Qt : Qnil; |
d0d6b7c5 JB |
670 | } |
671 | ||
672 | DEFUN ("get-process", Fget_process, Sget_process, 1, 1, 0, | |
fdb82f93 | 673 | doc: /* Return the process named NAME, or nil if there is none. */) |
5842a27b | 674 | (register Lisp_Object name) |
d0d6b7c5 | 675 | { |
bcd69aea | 676 | if (PROCESSP (name)) |
d0d6b7c5 | 677 | return name; |
b7826503 | 678 | CHECK_STRING (name); |
d0d6b7c5 JB |
679 | return Fcdr (Fassoc (name, Vprocess_alist)); |
680 | } | |
681 | ||
ebb9e16f JB |
682 | /* This is how commands for the user decode process arguments. It |
683 | accepts a process, a process name, a buffer, a buffer name, or nil. | |
684 | Buffers denote the first process in the buffer, and nil denotes the | |
685 | current buffer. */ | |
d0d6b7c5 | 686 | |
77b221b1 | 687 | static Lisp_Object |
d3da34e0 | 688 | get_process (register Lisp_Object name) |
d0d6b7c5 | 689 | { |
1619761d KH |
690 | register Lisp_Object proc, obj; |
691 | if (STRINGP (name)) | |
692 | { | |
693 | obj = Fget_process (name); | |
694 | if (NILP (obj)) | |
695 | obj = Fget_buffer (name); | |
696 | if (NILP (obj)) | |
d5db4077 | 697 | error ("Process %s does not exist", SDATA (name)); |
1619761d KH |
698 | } |
699 | else if (NILP (name)) | |
700 | obj = Fcurrent_buffer (); | |
d0d6b7c5 | 701 | else |
1619761d KH |
702 | obj = name; |
703 | ||
704 | /* Now obj should be either a buffer object or a process object. | |
705 | */ | |
706 | if (BUFFERP (obj)) | |
d0d6b7c5 | 707 | { |
1619761d | 708 | proc = Fget_buffer_process (obj); |
d0d6b7c5 | 709 | if (NILP (proc)) |
4b4deea2 | 710 | error ("Buffer %s has no process", SDATA (BVAR (XBUFFER (obj), name))); |
d0d6b7c5 | 711 | } |
d0d6b7c5 | 712 | else |
1619761d | 713 | { |
b7826503 | 714 | CHECK_PROCESS (obj); |
1619761d KH |
715 | proc = obj; |
716 | } | |
717 | return proc; | |
d0d6b7c5 JB |
718 | } |
719 | ||
a5cfdda8 KS |
720 | |
721 | #ifdef SIGCHLD | |
722 | /* Fdelete_process promises to immediately forget about the process, but in | |
723 | reality, Emacs needs to remember those processes until they have been | |
724 | treated by sigchld_handler; otherwise this handler would consider the | |
725 | process as being synchronous and say that the synchronous process is | |
726 | dead. */ | |
727 | static Lisp_Object deleted_pid_list; | |
728 | #endif | |
729 | ||
d0d6b7c5 | 730 | DEFUN ("delete-process", Fdelete_process, Sdelete_process, 1, 1, 0, |
fdb82f93 PJ |
731 | doc: /* Delete PROCESS: kill it and forget about it immediately. |
732 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
733 | nil, indicating the current buffer's process. */) | |
5842a27b | 734 | (register Lisp_Object process) |
d0d6b7c5 | 735 | { |
ff6daed3 KS |
736 | register struct Lisp_Process *p; |
737 | ||
4ee3e309 | 738 | process = get_process (process); |
ff6daed3 KS |
739 | p = XPROCESS (process); |
740 | ||
6bfd98e7 | 741 | p->raw_status_new = 0; |
d888760c | 742 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 743 | { |
ff6daed3 | 744 | p->status = Fcons (Qexit, Fcons (make_number (0), Qnil)); |
60f0fb11 | 745 | p->tick = ++process_tick; |
ff6daed3 | 746 | status_notify (p); |
e42bdf01 | 747 | redisplay_preserve_echo_area (13); |
d0d6b7c5 | 748 | } |
60f0fb11 | 749 | else if (p->infd >= 0) |
d0d6b7c5 | 750 | { |
a5cfdda8 KS |
751 | #ifdef SIGCHLD |
752 | Lisp_Object symbol; | |
d30fe779 EZ |
753 | /* Assignment to EMACS_INT stops GCC whining about limited range |
754 | of data type. */ | |
29ed4d51 | 755 | EMACS_INT pid = p->pid; |
a5cfdda8 KS |
756 | |
757 | /* No problem storing the pid here, as it is still in Vprocess_alist. */ | |
d30fe779 | 758 | deleted_pid_list = Fcons (make_fixnum_or_float (pid), |
a5cfdda8 KS |
759 | /* GC treated elements set to nil. */ |
760 | Fdelq (Qnil, deleted_pid_list)); | |
761 | /* If the process has already signaled, remove it from the list. */ | |
762 | if (p->raw_status_new) | |
763 | update_status (p); | |
764 | symbol = p->status; | |
765 | if (CONSP (p->status)) | |
766 | symbol = XCAR (p->status); | |
767 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit)) | |
29ed4d51 CY |
768 | deleted_pid_list |
769 | = Fdelete (make_fixnum_or_float (pid), deleted_pid_list); | |
a5cfdda8 KS |
770 | else |
771 | #endif | |
772 | { | |
773 | Fkill_process (process, Qnil); | |
774 | /* Do this now, since remove_process will make sigchld_handler do nothing. */ | |
775 | p->status | |
776 | = Fcons (Qsignal, Fcons (make_number (SIGKILL), Qnil)); | |
60f0fb11 | 777 | p->tick = ++process_tick; |
a5cfdda8 | 778 | status_notify (p); |
e42bdf01 | 779 | redisplay_preserve_echo_area (13); |
a5cfdda8 | 780 | } |
d0d6b7c5 | 781 | } |
4ee3e309 | 782 | remove_process (process); |
d0d6b7c5 JB |
783 | return Qnil; |
784 | } | |
785 | \f | |
786 | DEFUN ("process-status", Fprocess_status, Sprocess_status, 1, 1, 0, | |
fdb82f93 PJ |
787 | doc: /* Return the status of PROCESS. |
788 | The returned value is one of the following symbols: | |
789 | run -- for a process that is running. | |
790 | stop -- for a process stopped but continuable. | |
791 | exit -- for a process that has exited. | |
792 | signal -- for a process that has got a fatal signal. | |
793 | open -- for a network stream connection that is open. | |
e690ca94 | 794 | listen -- for a network stream server that is listening. |
fdb82f93 | 795 | closed -- for a network stream connection that is closed. |
e4984112 KS |
796 | connect -- when waiting for a non-blocking connection to complete. |
797 | failed -- when a non-blocking connection has failed. | |
fdb82f93 PJ |
798 | nil -- if arg is a process name and no such process exists. |
799 | PROCESS may be a process, a buffer, the name of a process, or | |
800 | nil, indicating the current buffer's process. */) | |
5842a27b | 801 | (register Lisp_Object process) |
d0d6b7c5 JB |
802 | { |
803 | register struct Lisp_Process *p; | |
804 | register Lisp_Object status; | |
343f4114 | 805 | |
4ee3e309 EN |
806 | if (STRINGP (process)) |
807 | process = Fget_process (process); | |
343f4114 | 808 | else |
4ee3e309 | 809 | process = get_process (process); |
343f4114 | 810 | |
4ee3e309 EN |
811 | if (NILP (process)) |
812 | return process; | |
343f4114 | 813 | |
4ee3e309 | 814 | p = XPROCESS (process); |
6bfd98e7 | 815 | if (p->raw_status_new) |
d0d6b7c5 JB |
816 | update_status (p); |
817 | status = p->status; | |
bcd69aea | 818 | if (CONSP (status)) |
70949dac | 819 | status = XCAR (status); |
d888760c | 820 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 821 | { |
e690ca94 | 822 | if (EQ (status, Qexit)) |
d0d6b7c5 | 823 | status = Qclosed; |
e690ca94 KS |
824 | else if (EQ (p->command, Qt)) |
825 | status = Qstop; | |
826 | else if (EQ (status, Qrun)) | |
827 | status = Qopen; | |
d0d6b7c5 JB |
828 | } |
829 | return status; | |
830 | } | |
831 | ||
832 | DEFUN ("process-exit-status", Fprocess_exit_status, Sprocess_exit_status, | |
833 | 1, 1, 0, | |
fdb82f93 PJ |
834 | doc: /* Return the exit status of PROCESS or the signal number that killed it. |
835 | If PROCESS has not yet exited or died, return 0. */) | |
5842a27b | 836 | (register Lisp_Object process) |
d0d6b7c5 | 837 | { |
b7826503 | 838 | CHECK_PROCESS (process); |
6bfd98e7 | 839 | if (XPROCESS (process)->raw_status_new) |
4ee3e309 EN |
840 | update_status (XPROCESS (process)); |
841 | if (CONSP (XPROCESS (process)->status)) | |
70949dac | 842 | return XCAR (XCDR (XPROCESS (process)->status)); |
d0d6b7c5 JB |
843 | return make_number (0); |
844 | } | |
845 | ||
846 | DEFUN ("process-id", Fprocess_id, Sprocess_id, 1, 1, 0, | |
fdb82f93 | 847 | doc: /* Return the process id of PROCESS. |
f3d9532b | 848 | This is the pid of the external process which PROCESS uses or talks to. |
fdb82f93 | 849 | For a network connection, this value is nil. */) |
5842a27b | 850 | (register Lisp_Object process) |
d0d6b7c5 | 851 | { |
d30fe779 EZ |
852 | /* Assignment to EMACS_INT stops GCC whining about limited range of |
853 | data type. */ | |
854 | EMACS_INT pid; | |
855 | ||
b7826503 | 856 | CHECK_PROCESS (process); |
d30fe779 EZ |
857 | pid = XPROCESS (process)->pid; |
858 | return (pid ? make_fixnum_or_float (pid) : Qnil); | |
d0d6b7c5 JB |
859 | } |
860 | ||
861 | DEFUN ("process-name", Fprocess_name, Sprocess_name, 1, 1, 0, | |
fdb82f93 PJ |
862 | doc: /* Return the name of PROCESS, as a string. |
863 | This is the name of the program invoked in PROCESS, | |
864 | possibly modified to make it unique among process names. */) | |
5842a27b | 865 | (register Lisp_Object process) |
d0d6b7c5 | 866 | { |
b7826503 | 867 | CHECK_PROCESS (process); |
4ee3e309 | 868 | return XPROCESS (process)->name; |
d0d6b7c5 JB |
869 | } |
870 | ||
871 | DEFUN ("process-command", Fprocess_command, Sprocess_command, 1, 1, 0, | |
fdb82f93 PJ |
872 | doc: /* Return the command that was executed to start PROCESS. |
873 | This is a list of strings, the first string being the program executed | |
874 | and the rest of the strings being the arguments given to it. | |
d888760c GM |
875 | For a network or serial process, this is nil (process is running) or t |
876 | \(process is stopped). */) | |
5842a27b | 877 | (register Lisp_Object process) |
d0d6b7c5 | 878 | { |
b7826503 | 879 | CHECK_PROCESS (process); |
4ee3e309 | 880 | return XPROCESS (process)->command; |
d0d6b7c5 JB |
881 | } |
882 | ||
3b9a3dfa | 883 | DEFUN ("process-tty-name", Fprocess_tty_name, Sprocess_tty_name, 1, 1, 0, |
fdb82f93 PJ |
884 | doc: /* Return the name of the terminal PROCESS uses, or nil if none. |
885 | This is the terminal that the process itself reads and writes on, | |
886 | not the name of the pty that Emacs uses to talk with that terminal. */) | |
5842a27b | 887 | (register Lisp_Object process) |
3b9a3dfa | 888 | { |
b7826503 | 889 | CHECK_PROCESS (process); |
4ee3e309 | 890 | return XPROCESS (process)->tty_name; |
3b9a3dfa RS |
891 | } |
892 | ||
d0d6b7c5 | 893 | DEFUN ("set-process-buffer", Fset_process_buffer, Sset_process_buffer, |
fdb82f93 | 894 | 2, 2, 0, |
76147d94 DD |
895 | doc: /* Set buffer associated with PROCESS to BUFFER (a buffer, or nil). |
896 | Return BUFFER. */) | |
5842a27b | 897 | (register Lisp_Object process, Lisp_Object buffer) |
d0d6b7c5 | 898 | { |
e690ca94 KS |
899 | struct Lisp_Process *p; |
900 | ||
b7826503 | 901 | CHECK_PROCESS (process); |
d0d6b7c5 | 902 | if (!NILP (buffer)) |
b7826503 | 903 | CHECK_BUFFER (buffer); |
e690ca94 KS |
904 | p = XPROCESS (process); |
905 | p->buffer = buffer; | |
d888760c | 906 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
e690ca94 | 907 | p->childp = Fplist_put (p->childp, QCbuffer, buffer); |
03f04413 | 908 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
909 | return buffer; |
910 | } | |
911 | ||
912 | DEFUN ("process-buffer", Fprocess_buffer, Sprocess_buffer, | |
fdb82f93 PJ |
913 | 1, 1, 0, |
914 | doc: /* Return the buffer PROCESS is associated with. | |
915 | Output from PROCESS is inserted in this buffer unless PROCESS has a filter. */) | |
5842a27b | 916 | (register Lisp_Object process) |
d0d6b7c5 | 917 | { |
b7826503 | 918 | CHECK_PROCESS (process); |
4ee3e309 | 919 | return XPROCESS (process)->buffer; |
d0d6b7c5 JB |
920 | } |
921 | ||
922 | DEFUN ("process-mark", Fprocess_mark, Sprocess_mark, | |
fdb82f93 PJ |
923 | 1, 1, 0, |
924 | doc: /* Return the marker for the end of the last output from PROCESS. */) | |
5842a27b | 925 | (register Lisp_Object process) |
d0d6b7c5 | 926 | { |
b7826503 | 927 | CHECK_PROCESS (process); |
4ee3e309 | 928 | return XPROCESS (process)->mark; |
d0d6b7c5 JB |
929 | } |
930 | ||
931 | DEFUN ("set-process-filter", Fset_process_filter, Sset_process_filter, | |
fdb82f93 PJ |
932 | 2, 2, 0, |
933 | doc: /* Give PROCESS the filter function FILTER; nil means no filter. | |
7b82c3b6 | 934 | A value of t means stop accepting output from the process. |
3452df9e KS |
935 | |
936 | When a process has a filter, its buffer is not used for output. | |
937 | Instead, each time it does output, the entire string of output is | |
177c0ea7 | 938 | passed to the filter. |
3452df9e | 939 | |
fdb82f93 | 940 | The filter gets two arguments: the process and the string of output. |
3452df9e KS |
941 | The string argument is normally a multibyte string, except: |
942 | - if the process' input coding system is no-conversion or raw-text, | |
943 | it is a unibyte string (the non-converted input), or else | |
944 | - if `default-enable-multibyte-characters' is nil, it is a unibyte | |
945 | string (the result of converting the decoded input multibyte | |
946 | string to unibyte with `string-make-unibyte'). */) | |
5842a27b | 947 | (register Lisp_Object process, Lisp_Object filter) |
d0d6b7c5 | 948 | { |
471f86b9 | 949 | struct Lisp_Process *p; |
177c0ea7 | 950 | |
b7826503 | 951 | CHECK_PROCESS (process); |
471f86b9 GM |
952 | p = XPROCESS (process); |
953 | ||
954 | /* Don't signal an error if the process' input file descriptor | |
955 | is closed. This could make debugging Lisp more difficult, | |
956 | for example when doing something like | |
957 | ||
958 | (setq process (start-process ...)) | |
959 | (debug) | |
960 | (set-process-filter process ...) */ | |
177c0ea7 | 961 | |
60f0fb11 | 962 | if (p->infd >= 0) |
a69281ff | 963 | { |
e690ca94 | 964 | if (EQ (filter, Qt) && !EQ (p->status, Qlisten)) |
471f86b9 | 965 | { |
60f0fb11 SM |
966 | FD_CLR (p->infd, &input_wait_mask); |
967 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 968 | } |
e690ca94 | 969 | else if (EQ (p->filter, Qt) |
d888760c GM |
970 | /* Network or serial process not stopped: */ |
971 | && !EQ (p->command, Qt)) | |
471f86b9 | 972 | { |
60f0fb11 SM |
973 | FD_SET (p->infd, &input_wait_mask); |
974 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 975 | } |
a69281ff | 976 | } |
177c0ea7 | 977 | |
471f86b9 | 978 | p->filter = filter; |
d888760c | 979 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
e690ca94 | 980 | p->childp = Fplist_put (p->childp, QCfilter, filter); |
03f04413 | 981 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
982 | return filter; |
983 | } | |
984 | ||
985 | DEFUN ("process-filter", Fprocess_filter, Sprocess_filter, | |
fdb82f93 PJ |
986 | 1, 1, 0, |
987 | doc: /* Returns the filter function of PROCESS; nil if none. | |
988 | See `set-process-filter' for more info on filter functions. */) | |
5842a27b | 989 | (register Lisp_Object process) |
d0d6b7c5 | 990 | { |
b7826503 | 991 | CHECK_PROCESS (process); |
4ee3e309 | 992 | return XPROCESS (process)->filter; |
d0d6b7c5 JB |
993 | } |
994 | ||
995 | DEFUN ("set-process-sentinel", Fset_process_sentinel, Sset_process_sentinel, | |
fdb82f93 PJ |
996 | 2, 2, 0, |
997 | doc: /* Give PROCESS the sentinel SENTINEL; nil for none. | |
998 | The sentinel is called as a function when the process changes state. | |
999 | It gets two arguments: the process, and a string describing the change. */) | |
5842a27b | 1000 | (register Lisp_Object process, Lisp_Object sentinel) |
d0d6b7c5 | 1001 | { |
6b61353c KH |
1002 | struct Lisp_Process *p; |
1003 | ||
b7826503 | 1004 | CHECK_PROCESS (process); |
6b61353c KH |
1005 | p = XPROCESS (process); |
1006 | ||
1007 | p->sentinel = sentinel; | |
d888760c | 1008 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
6b61353c | 1009 | p->childp = Fplist_put (p->childp, QCsentinel, sentinel); |
d0d6b7c5 JB |
1010 | return sentinel; |
1011 | } | |
1012 | ||
1013 | DEFUN ("process-sentinel", Fprocess_sentinel, Sprocess_sentinel, | |
fdb82f93 PJ |
1014 | 1, 1, 0, |
1015 | doc: /* Return the sentinel of PROCESS; nil if none. | |
1016 | See `set-process-sentinel' for more info on sentinels. */) | |
5842a27b | 1017 | (register Lisp_Object process) |
d0d6b7c5 | 1018 | { |
b7826503 | 1019 | CHECK_PROCESS (process); |
4ee3e309 | 1020 | return XPROCESS (process)->sentinel; |
d0d6b7c5 JB |
1021 | } |
1022 | ||
396df322 | 1023 | DEFUN ("set-process-window-size", Fset_process_window_size, |
fdb82f93 PJ |
1024 | Sset_process_window_size, 3, 3, 0, |
1025 | doc: /* Tell PROCESS that it has logical window size HEIGHT and WIDTH. */) | |
5842a27b | 1026 | (register Lisp_Object process, Lisp_Object height, Lisp_Object width) |
396df322 | 1027 | { |
b7826503 PJ |
1028 | CHECK_PROCESS (process); |
1029 | CHECK_NATNUM (height); | |
1030 | CHECK_NATNUM (width); | |
177c0ea7 | 1031 | |
60f0fb11 SM |
1032 | if (XPROCESS (process)->infd < 0 |
1033 | || set_window_size (XPROCESS (process)->infd, | |
471f86b9 | 1034 | XINT (height), XINT (width)) <= 0) |
396df322 RS |
1035 | return Qnil; |
1036 | else | |
1037 | return Qt; | |
1038 | } | |
1039 | ||
52a1b894 | 1040 | DEFUN ("set-process-inherit-coding-system-flag", |
fdb82f93 PJ |
1041 | Fset_process_inherit_coding_system_flag, |
1042 | Sset_process_inherit_coding_system_flag, 2, 2, 0, | |
1043 | doc: /* Determine whether buffer of PROCESS will inherit coding-system. | |
1044 | If the second argument FLAG is non-nil, then the variable | |
1045 | `buffer-file-coding-system' of the buffer associated with PROCESS | |
1046 | will be bound to the value of the coding system used to decode | |
1047 | the process output. | |
1048 | ||
1049 | This is useful when the coding system specified for the process buffer | |
1050 | leaves either the character code conversion or the end-of-line conversion | |
1051 | unspecified, or if the coding system used to decode the process output | |
1052 | is more appropriate for saving the process buffer. | |
1053 | ||
1054 | Binding the variable `inherit-process-coding-system' to non-nil before | |
1055 | starting the process is an alternative way of setting the inherit flag | |
1056 | for the process which will run. */) | |
5842a27b | 1057 | (register Lisp_Object process, Lisp_Object flag) |
52a1b894 | 1058 | { |
b7826503 | 1059 | CHECK_PROCESS (process); |
60f0fb11 | 1060 | XPROCESS (process)->inherit_coding_system_flag = !NILP (flag); |
52a1b894 EZ |
1061 | return flag; |
1062 | } | |
1063 | ||
e690ca94 KS |
1064 | DEFUN ("set-process-query-on-exit-flag", |
1065 | Fset_process_query_on_exit_flag, Sset_process_query_on_exit_flag, | |
1066 | 2, 2, 0, | |
1067 | doc: /* Specify if query is needed for PROCESS when Emacs is exited. | |
f3d9532b | 1068 | If the second argument FLAG is non-nil, Emacs will query the user before |
10be7e0d | 1069 | exiting or killing a buffer if PROCESS is running. */) |
5842a27b | 1070 | (register Lisp_Object process, Lisp_Object flag) |
d0d6b7c5 | 1071 | { |
b7826503 | 1072 | CHECK_PROCESS (process); |
60f0fb11 | 1073 | XPROCESS (process)->kill_without_query = NILP (flag); |
e690ca94 | 1074 | return flag; |
d0d6b7c5 | 1075 | } |
312c9964 | 1076 | |
e690ca94 KS |
1077 | DEFUN ("process-query-on-exit-flag", |
1078 | Fprocess_query_on_exit_flag, Sprocess_query_on_exit_flag, | |
fdb82f93 | 1079 | 1, 1, 0, |
f3d9532b | 1080 | doc: /* Return the current value of query-on-exit flag for PROCESS. */) |
5842a27b | 1081 | (register Lisp_Object process) |
de282a05 | 1082 | { |
b7826503 | 1083 | CHECK_PROCESS (process); |
60f0fb11 | 1084 | return (XPROCESS (process)->kill_without_query ? Qnil : Qt); |
e690ca94 KS |
1085 | } |
1086 | ||
1087 | #ifdef DATAGRAM_SOCKETS | |
cd64ea1d | 1088 | static Lisp_Object Fprocess_datagram_address (Lisp_Object); |
e690ca94 KS |
1089 | #endif |
1090 | ||
1091 | DEFUN ("process-contact", Fprocess_contact, Sprocess_contact, | |
1092 | 1, 2, 0, | |
1093 | doc: /* Return the contact info of PROCESS; t for a real child. | |
d888760c GM |
1094 | For a network or serial connection, the value depends on the optional |
1095 | KEY arg. If KEY is nil, value is a cons cell of the form (HOST | |
1096 | SERVICE) for a network connection or (PORT SPEED) for a serial | |
1097 | connection. If KEY is t, the complete contact information for the | |
1098 | connection is returned, else the specific value for the keyword KEY is | |
1099 | returned. See `make-network-process' or `make-serial-process' for a | |
1100 | list of keywords. */) | |
5842a27b | 1101 | (register Lisp_Object process, Lisp_Object key) |
e690ca94 KS |
1102 | { |
1103 | Lisp_Object contact; | |
1104 | ||
1105 | CHECK_PROCESS (process); | |
1106 | contact = XPROCESS (process)->childp; | |
1107 | ||
1108 | #ifdef DATAGRAM_SOCKETS | |
1109 | if (DATAGRAM_CONN_P (process) | |
1110 | && (EQ (key, Qt) || EQ (key, QCremote))) | |
177c0ea7 | 1111 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
1112 | Fprocess_datagram_address (process)); |
1113 | #endif | |
1114 | ||
d888760c | 1115 | if ((!NETCONN_P (process) && !SERIALCONN_P (process)) || EQ (key, Qt)) |
e690ca94 | 1116 | return contact; |
d888760c | 1117 | if (NILP (key) && NETCONN_P (process)) |
e690ca94 KS |
1118 | return Fcons (Fplist_get (contact, QChost), |
1119 | Fcons (Fplist_get (contact, QCservice), Qnil)); | |
d888760c GM |
1120 | if (NILP (key) && SERIALCONN_P (process)) |
1121 | return Fcons (Fplist_get (contact, QCport), | |
1122 | Fcons (Fplist_get (contact, QCspeed), Qnil)); | |
e690ca94 | 1123 | return Fplist_get (contact, key); |
de282a05 RS |
1124 | } |
1125 | ||
faa7db08 KS |
1126 | DEFUN ("process-plist", Fprocess_plist, Sprocess_plist, |
1127 | 1, 1, 0, | |
1128 | doc: /* Return the plist of PROCESS. */) | |
5842a27b | 1129 | (register Lisp_Object process) |
365aee82 | 1130 | { |
ac4a7584 | 1131 | CHECK_PROCESS (process); |
faa7db08 | 1132 | return XPROCESS (process)->plist; |
ac4a7584 | 1133 | } |
365aee82 | 1134 | |
faa7db08 KS |
1135 | DEFUN ("set-process-plist", Fset_process_plist, Sset_process_plist, |
1136 | 2, 2, 0, | |
26a086c6 | 1137 | doc: /* Replace the plist of PROCESS with PLIST. Returns PLIST. */) |
5842a27b | 1138 | (register Lisp_Object process, Lisp_Object plist) |
ac4a7584 | 1139 | { |
365aee82 | 1140 | CHECK_PROCESS (process); |
faa7db08 | 1141 | CHECK_LIST (plist); |
365aee82 | 1142 | |
faa7db08 | 1143 | XPROCESS (process)->plist = plist; |
26a086c6 | 1144 | return plist; |
365aee82 KS |
1145 | } |
1146 | ||
312c9964 RS |
1147 | #if 0 /* Turned off because we don't currently record this info |
1148 | in the process. Perhaps add it. */ | |
1149 | DEFUN ("process-connection", Fprocess_connection, Sprocess_connection, 1, 1, 0, | |
fdb82f93 PJ |
1150 | doc: /* Return the connection type of PROCESS. |
1151 | The value is nil for a pipe, t or `pty' for a pty, or `stream' for | |
1152 | a socket connection. */) | |
5842a27b | 1153 | (Lisp_Object process) |
312c9964 RS |
1154 | { |
1155 | return XPROCESS (process)->type; | |
1156 | } | |
1157 | #endif | |
2a7bb882 | 1158 | |
d888760c GM |
1159 | DEFUN ("process-type", Fprocess_type, Sprocess_type, 1, 1, 0, |
1160 | doc: /* Return the connection type of PROCESS. | |
1161 | The value is either the symbol `real', `network', or `serial'. | |
1162 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
1163 | nil, indicating the current buffer's process. */) | |
5842a27b | 1164 | (Lisp_Object process) |
d888760c GM |
1165 | { |
1166 | Lisp_Object proc; | |
1167 | proc = get_process (process); | |
1168 | return XPROCESS (proc)->type; | |
1169 | } | |
991234f0 | 1170 | |
991234f0 | 1171 | DEFUN ("format-network-address", Fformat_network_address, Sformat_network_address, |
0dccee41 | 1172 | 1, 2, 0, |
991234f0 | 1173 | doc: /* Convert network ADDRESS from internal format to a string. |
e1652a86 KS |
1174 | A 4 or 5 element vector represents an IPv4 address (with port number). |
1175 | An 8 or 9 element vector represents an IPv6 address (with port number). | |
0dccee41 | 1176 | If optional second argument OMIT-PORT is non-nil, don't include a port |
e1652a86 KS |
1177 | number in the string, even when present in ADDRESS. |
1178 | Returns nil if format of ADDRESS is invalid. */) | |
5842a27b | 1179 | (Lisp_Object address, Lisp_Object omit_port) |
991234f0 | 1180 | { |
991234f0 KS |
1181 | if (NILP (address)) |
1182 | return Qnil; | |
1183 | ||
1184 | if (STRINGP (address)) /* AF_LOCAL */ | |
1185 | return address; | |
1186 | ||
e1652a86 | 1187 | if (VECTORP (address)) /* AF_INET or AF_INET6 */ |
991234f0 KS |
1188 | { |
1189 | register struct Lisp_Vector *p = XVECTOR (address); | |
eab3844f | 1190 | EMACS_UINT size = p->header.size; |
ded83665 | 1191 | Lisp_Object args[10]; |
0dccee41 | 1192 | int nargs, i; |
991234f0 | 1193 | |
eab3844f | 1194 | if (size == 4 || (size == 5 && !NILP (omit_port))) |
0dccee41 KS |
1195 | { |
1196 | args[0] = build_string ("%d.%d.%d.%d"); | |
1197 | nargs = 4; | |
1198 | } | |
eab3844f | 1199 | else if (size == 5) |
0dccee41 KS |
1200 | { |
1201 | args[0] = build_string ("%d.%d.%d.%d:%d"); | |
1202 | nargs = 5; | |
1203 | } | |
eab3844f | 1204 | else if (size == 8 || (size == 9 && !NILP (omit_port))) |
e1652a86 KS |
1205 | { |
1206 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
1207 | nargs = 8; | |
1208 | } | |
eab3844f | 1209 | else if (size == 9) |
e1652a86 KS |
1210 | { |
1211 | args[0] = build_string ("[%x:%x:%x:%x:%x:%x:%x:%x]:%d"); | |
1212 | nargs = 9; | |
1213 | } | |
0dccee41 | 1214 | else |
991234f0 KS |
1215 | return Qnil; |
1216 | ||
0dccee41 | 1217 | for (i = 0; i < nargs; i++) |
cbf23adb JB |
1218 | { |
1219 | EMACS_INT element = XINT (p->contents[i]); | |
1220 | ||
1221 | if (element < 0 || element > 65535) | |
1222 | return Qnil; | |
1223 | ||
1224 | if (nargs <= 5 /* IPv4 */ | |
1225 | && i < 4 /* host, not port */ | |
1226 | && element > 255) | |
1227 | return Qnil; | |
1228 | ||
1229 | args[i+1] = p->contents[i]; | |
1230 | } | |
1231 | ||
0dccee41 | 1232 | return Fformat (nargs+1, args); |
991234f0 KS |
1233 | } |
1234 | ||
1235 | if (CONSP (address)) | |
1236 | { | |
1237 | Lisp_Object args[2]; | |
1238 | args[0] = build_string ("<Family %d>"); | |
8d2ff840 | 1239 | args[1] = Fcar (address); |
991234f0 | 1240 | return Fformat (2, args); |
991234f0 KS |
1241 | } |
1242 | ||
1243 | return Qnil; | |
1244 | } | |
d0d6b7c5 JB |
1245 | |
1246 | DEFUN ("process-list", Fprocess_list, Sprocess_list, 0, 0, 0, | |
fdb82f93 | 1247 | doc: /* Return a list of all processes. */) |
5842a27b | 1248 | (void) |
d0d6b7c5 JB |
1249 | { |
1250 | return Fmapcar (Qcdr, Vprocess_alist); | |
1251 | } | |
1252 | \f | |
b0310da4 JB |
1253 | /* Starting asynchronous inferior processes. */ |
1254 | ||
d3da34e0 | 1255 | static Lisp_Object start_process_unwind (Lisp_Object proc); |
b0310da4 | 1256 | |
d0d6b7c5 | 1257 | DEFUN ("start-process", Fstart_process, Sstart_process, 3, MANY, 0, |
fdb82f93 PJ |
1258 | doc: /* Start a program in a subprocess. Return the process object for it. |
1259 | NAME is name for process. It is modified if necessary to make it unique. | |
553acde5 | 1260 | BUFFER is the buffer (or buffer name) to associate with the process. |
4b6c5eee EZ |
1261 | |
1262 | Process output (both standard output and standard error streams) goes | |
1263 | at end of BUFFER, unless you specify an output stream or filter | |
1264 | function to handle the output. BUFFER may also be nil, meaning that | |
16fdeb17 RS |
1265 | this process is not associated with any buffer. |
1266 | ||
6b8bc570 CY |
1267 | PROGRAM is the program file name. It is searched for in `exec-path' |
1268 | (which see). If nil, just associate a pty with the buffer. Remaining | |
1269 | arguments are strings to give program as arguments. | |
320aebc9 | 1270 | |
4b6c5eee EZ |
1271 | If you want to separate standard output from standard error, invoke |
1272 | the command through a shell and redirect one of them using the shell | |
1273 | syntax. | |
320aebc9 | 1274 | |
3ecdf100 | 1275 | usage: (start-process NAME BUFFER PROGRAM &rest PROGRAM-ARGS) */) |
f66c7cf8 | 1276 | (ptrdiff_t nargs, Lisp_Object *args) |
d0d6b7c5 | 1277 | { |
1e30af70 | 1278 | Lisp_Object buffer, name, program, proc, current_dir, tem; |
d0d6b7c5 | 1279 | register unsigned char **new_argv; |
f66c7cf8 | 1280 | ptrdiff_t i; |
aed13378 | 1281 | int count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
1282 | |
1283 | buffer = args[1]; | |
1284 | if (!NILP (buffer)) | |
1285 | buffer = Fget_buffer_create (buffer); | |
1286 | ||
1e30af70 JB |
1287 | /* Make sure that the child will be able to chdir to the current |
1288 | buffer's current directory, or its unhandled equivalent. We | |
1289 | can't just have the child check for an error when it does the | |
1290 | chdir, since it's in a vfork. | |
1291 | ||
1292 | We have to GCPRO around this because Fexpand_file_name and | |
1293 | Funhandled_file_name_directory might call a file name handling | |
1294 | function. The argument list is protected by the caller, so all | |
1295 | we really have to worry about is buffer. */ | |
1296 | { | |
1297 | struct gcpro gcpro1, gcpro2; | |
1298 | ||
4b4deea2 | 1299 | current_dir = BVAR (current_buffer, directory); |
1e30af70 JB |
1300 | |
1301 | GCPRO2 (buffer, current_dir); | |
1302 | ||
ca319910 SM |
1303 | current_dir = Funhandled_file_name_directory (current_dir); |
1304 | if (NILP (current_dir)) | |
1305 | /* If the file name handler says that current_dir is unreachable, use | |
1306 | a sensible default. */ | |
1307 | current_dir = build_string ("~/"); | |
1308 | current_dir = expand_and_dir_to_file (current_dir, Qnil); | |
1e30af70 JB |
1309 | if (NILP (Ffile_accessible_directory_p (current_dir))) |
1310 | report_file_error ("Setting current directory", | |
4b4deea2 | 1311 | Fcons (BVAR (current_buffer, directory), Qnil)); |
1e30af70 JB |
1312 | |
1313 | UNGCPRO; | |
1314 | } | |
1315 | ||
d0d6b7c5 | 1316 | name = args[0]; |
b7826503 | 1317 | CHECK_STRING (name); |
d0d6b7c5 JB |
1318 | |
1319 | program = args[2]; | |
1320 | ||
850d0752 NR |
1321 | if (!NILP (program)) |
1322 | CHECK_STRING (program); | |
d0d6b7c5 | 1323 | |
d0d6b7c5 | 1324 | proc = make_process (name); |
b0310da4 JB |
1325 | /* If an error occurs and we can't start the process, we want to |
1326 | remove it from the process list. This means that each error | |
1327 | check in create_process doesn't need to call remove_process | |
1328 | itself; it's all taken care of here. */ | |
1329 | record_unwind_protect (start_process_unwind, proc); | |
d0d6b7c5 JB |
1330 | |
1331 | XPROCESS (proc)->childp = Qt; | |
faa7db08 | 1332 | XPROCESS (proc)->plist = Qnil; |
d888760c | 1333 | XPROCESS (proc)->type = Qreal; |
d0d6b7c5 JB |
1334 | XPROCESS (proc)->buffer = buffer; |
1335 | XPROCESS (proc)->sentinel = Qnil; | |
1336 | XPROCESS (proc)->filter = Qnil; | |
1337 | XPROCESS (proc)->command = Flist (nargs - 2, args + 2); | |
1338 | ||
8af55556 TZ |
1339 | #ifdef HAVE_GNUTLS |
1340 | /* AKA GNUTLS_INITSTAGE(proc). */ | |
1341 | XPROCESS (proc)->gnutls_initstage = GNUTLS_STAGE_EMPTY; | |
1342 | XPROCESS (proc)->gnutls_cred_type = Qnil; | |
1343 | #endif | |
1344 | ||
6b61353c | 1345 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
1346 | XPROCESS (proc)->adaptive_read_buffering |
1347 | = (NILP (Vprocess_adaptive_read_buffering) ? 0 | |
1348 | : EQ (Vprocess_adaptive_read_buffering, Qt) ? 1 : 2); | |
6b61353c KH |
1349 | #endif |
1350 | ||
7af71e17 | 1351 | /* Make the process marker point into the process buffer (if any). */ |
f523e0c3 | 1352 | if (BUFFERP (buffer)) |
d8a2934e RS |
1353 | set_marker_both (XPROCESS (proc)->mark, buffer, |
1354 | BUF_ZV (XBUFFER (buffer)), | |
1355 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
7af71e17 | 1356 | |
67918941 | 1357 | { |
d5d4ae71 KH |
1358 | /* Decide coding systems for communicating with the process. Here |
1359 | we don't setup the structure coding_system nor pay attention to | |
1360 | unibyte mode. They are done in create_process. */ | |
1361 | ||
67918941 RS |
1362 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ |
1363 | Lisp_Object coding_systems = Qt; | |
1364 | Lisp_Object val, *args2; | |
a4a37e65 | 1365 | struct gcpro gcpro1, gcpro2; |
67918941 | 1366 | |
d5d4ae71 KH |
1367 | val = Vcoding_system_for_read; |
1368 | if (NILP (val)) | |
67918941 RS |
1369 | { |
1370 | args2 = (Lisp_Object *) alloca ((nargs + 1) * sizeof *args2); | |
1371 | args2[0] = Qstart_process; | |
1372 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1373 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1374 | if (!NILP (program)) |
1375 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1376 | UNGCPRO; |
1377 | if (CONSP (coding_systems)) | |
70949dac | 1378 | val = XCAR (coding_systems); |
67918941 | 1379 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1380 | val = XCAR (Vdefault_process_coding_system); |
67918941 RS |
1381 | } |
1382 | XPROCESS (proc)->decode_coding_system = val; | |
1383 | ||
d5d4ae71 KH |
1384 | val = Vcoding_system_for_write; |
1385 | if (NILP (val)) | |
67918941 RS |
1386 | { |
1387 | if (EQ (coding_systems, Qt)) | |
1388 | { | |
dd5963ea | 1389 | args2 = (Lisp_Object *) alloca ((nargs + 1) * sizeof *args2); |
67918941 RS |
1390 | args2[0] = Qstart_process; |
1391 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1392 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1393 | if (!NILP (program)) |
1394 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1395 | UNGCPRO; |
1396 | } | |
1397 | if (CONSP (coding_systems)) | |
70949dac | 1398 | val = XCDR (coding_systems); |
67918941 | 1399 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1400 | val = XCDR (Vdefault_process_coding_system); |
67918941 RS |
1401 | } |
1402 | XPROCESS (proc)->encode_coding_system = val; | |
fcaf8878 KH |
1403 | /* Note: At this momemnt, the above coding system may leave |
1404 | text-conversion or eol-conversion unspecified. They will be | |
1405 | decided after we read output from the process and decode it by | |
1406 | some coding system, or just before we actually send a text to | |
1407 | the process. */ | |
67918941 | 1408 | } |
0fa1789e | 1409 | |
a4a37e65 | 1410 | |
cbe81f1d | 1411 | XPROCESS (proc)->decoding_buf = empty_unibyte_string; |
850d0752 | 1412 | XPROCESS (proc)->decoding_carryover = 0; |
cbe81f1d | 1413 | XPROCESS (proc)->encoding_buf = empty_unibyte_string; |
ed30cf85 | 1414 | |
850d0752 NR |
1415 | XPROCESS (proc)->inherit_coding_system_flag |
1416 | = !(NILP (buffer) || !inherit_process_coding_system); | |
77bf07e1 | 1417 | |
850d0752 NR |
1418 | if (!NILP (program)) |
1419 | { | |
1420 | /* If program file name is not absolute, search our path for it. | |
1421 | Put the name we will really use in TEM. */ | |
1422 | if (!IS_DIRECTORY_SEP (SREF (program, 0)) | |
1423 | && !(SCHARS (program) > 1 | |
1424 | && IS_DEVICE_SEP (SREF (program, 1)))) | |
1425 | { | |
1426 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1427 | ||
1428 | tem = Qnil; | |
1429 | GCPRO4 (name, program, buffer, current_dir); | |
1430 | openp (Vexec_path, program, Vexec_suffixes, &tem, make_number (X_OK)); | |
1431 | UNGCPRO; | |
1432 | if (NILP (tem)) | |
1433 | report_file_error ("Searching for program", Fcons (program, Qnil)); | |
1434 | tem = Fexpand_file_name (tem, Qnil); | |
1435 | } | |
1436 | else | |
1437 | { | |
1438 | if (!NILP (Ffile_directory_p (program))) | |
1439 | error ("Specified program for new process is a directory"); | |
1440 | tem = program; | |
1441 | } | |
ed30cf85 | 1442 | |
850d0752 NR |
1443 | /* If program file name starts with /: for quoting a magic name, |
1444 | discard that. */ | |
1445 | if (SBYTES (tem) > 2 && SREF (tem, 0) == '/' | |
1446 | && SREF (tem, 1) == ':') | |
1447 | tem = Fsubstring (tem, make_number (2), Qnil); | |
77bf07e1 | 1448 | |
77bf07e1 | 1449 | { |
fcaf8878 | 1450 | Lisp_Object arg_encoding = Qnil; |
850d0752 NR |
1451 | struct gcpro gcpro1; |
1452 | GCPRO1 (tem); | |
a4a37e65 | 1453 | |
850d0752 NR |
1454 | /* Encode the file name and put it in NEW_ARGV. |
1455 | That's where the child will use it to execute the program. */ | |
1456 | tem = Fcons (ENCODE_FILE (tem), Qnil); | |
77bf07e1 | 1457 | |
850d0752 NR |
1458 | /* Here we encode arguments by the coding system used for sending |
1459 | data to the process. We don't support using different coding | |
1460 | systems for encoding arguments and for encoding data sent to the | |
1461 | process. */ | |
77bf07e1 | 1462 | |
850d0752 NR |
1463 | for (i = 3; i < nargs; i++) |
1464 | { | |
1465 | tem = Fcons (args[i], tem); | |
1466 | CHECK_STRING (XCAR (tem)); | |
1467 | if (STRING_MULTIBYTE (XCAR (tem))) | |
fcaf8878 KH |
1468 | { |
1469 | if (NILP (arg_encoding)) | |
1470 | arg_encoding = (complement_process_encoding_system | |
1471 | (XPROCESS (proc)->encode_coding_system)); | |
1472 | XSETCAR (tem, | |
1473 | code_convert_string_norecord | |
1474 | (XCAR (tem), arg_encoding, 1)); | |
1475 | } | |
850d0752 | 1476 | } |
a4a37e65 | 1477 | |
850d0752 NR |
1478 | UNGCPRO; |
1479 | } | |
0fa1789e | 1480 | |
850d0752 NR |
1481 | /* Now that everything is encoded we can collect the strings into |
1482 | NEW_ARGV. */ | |
1483 | new_argv = (unsigned char **) alloca ((nargs - 1) * sizeof (char *)); | |
1484 | new_argv[nargs - 2] = 0; | |
52a1b894 | 1485 | |
c5101a77 | 1486 | for (i = nargs - 2; i-- != 0; ) |
850d0752 NR |
1487 | { |
1488 | new_argv[i] = SDATA (XCAR (tem)); | |
1489 | tem = XCDR (tem); | |
1490 | } | |
1491 | ||
1492 | create_process (proc, (char **) new_argv, current_dir); | |
1493 | } | |
1494 | else | |
1495 | create_pty (proc); | |
d0d6b7c5 | 1496 | |
b0310da4 | 1497 | return unbind_to (count, proc); |
d0d6b7c5 JB |
1498 | } |
1499 | ||
b0310da4 | 1500 | /* This function is the unwind_protect form for Fstart_process. If |
8e6208c5 | 1501 | PROC doesn't have its pid set, then we know someone has signaled |
b0310da4 JB |
1502 | an error and the process wasn't started successfully, so we should |
1503 | remove it from the process list. */ | |
1504 | static Lisp_Object | |
d3da34e0 | 1505 | start_process_unwind (Lisp_Object proc) |
b0310da4 | 1506 | { |
bcd69aea | 1507 | if (!PROCESSP (proc)) |
b0310da4 JB |
1508 | abort (); |
1509 | ||
1510 | /* Was PROC started successfully? */ | |
850d0752 | 1511 | if (XPROCESS (proc)->pid == -1) |
b0310da4 JB |
1512 | remove_process (proc); |
1513 | ||
1514 | return Qnil; | |
1515 | } | |
1516 | ||
ff6daed3 | 1517 | static void |
d3da34e0 | 1518 | create_process_1 (struct atimer *timer) |
d0d6b7c5 | 1519 | { |
30904ab7 | 1520 | /* Nothing to do. */ |
d0d6b7c5 JB |
1521 | } |
1522 | ||
30904ab7 | 1523 | |
40ccffa6 | 1524 | static void |
d3da34e0 | 1525 | create_process (Lisp_Object process, char **new_argv, Lisp_Object current_dir) |
d0d6b7c5 | 1526 | { |
29ed4d51 CY |
1527 | int inchannel, outchannel; |
1528 | pid_t pid; | |
d0d6b7c5 | 1529 | int sv[2]; |
2c4df143 YM |
1530 | #if !defined (WINDOWSNT) && defined (FD_CLOEXEC) |
1531 | int wait_child_setup[2]; | |
1532 | #endif | |
0dc70c33 KH |
1533 | sigset_t procmask; |
1534 | sigset_t blocked; | |
1535 | struct sigaction sigint_action; | |
1536 | struct sigaction sigquit_action; | |
c0ad4ea5 | 1537 | struct sigaction sigpipe_action; |
0dc70c33 KH |
1538 | #ifdef AIX |
1539 | struct sigaction sighup_action; | |
1540 | #endif | |
ecd1f654 KH |
1541 | /* Use volatile to protect variables from being clobbered by longjmp. */ |
1542 | volatile int forkin, forkout; | |
1543 | volatile int pty_flag = 0; | |
3ec68006 | 1544 | #ifndef USE_CRT_DLL |
d0d6b7c5 | 1545 | extern char **environ; |
3ec68006 | 1546 | #endif |
d0d6b7c5 | 1547 | |
d0d6b7c5 JB |
1548 | inchannel = outchannel = -1; |
1549 | ||
1550 | #ifdef HAVE_PTYS | |
fe45da4e | 1551 | if (!NILP (Vprocess_connection_type)) |
d0d6b7c5 JB |
1552 | outchannel = inchannel = allocate_pty (); |
1553 | ||
d0d6b7c5 JB |
1554 | if (inchannel >= 0) |
1555 | { | |
2af70a0c RS |
1556 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) |
1557 | /* On most USG systems it does not work to open the pty's tty here, | |
1558 | then close it and reopen it in the child. */ | |
d0d6b7c5 JB |
1559 | #ifdef O_NOCTTY |
1560 | /* Don't let this terminal become our controlling terminal | |
1561 | (in case we don't have one). */ | |
68c45bf0 | 1562 | forkout = forkin = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); |
d0d6b7c5 | 1563 | #else |
68c45bf0 | 1564 | forkout = forkin = emacs_open (pty_name, O_RDWR, 0); |
d0d6b7c5 JB |
1565 | #endif |
1566 | if (forkin < 0) | |
1567 | report_file_error ("Opening pty", Qnil); | |
1568 | #else | |
1569 | forkin = forkout = -1; | |
2af70a0c | 1570 | #endif /* not USG, or USG_SUBTTY_WORKS */ |
d0d6b7c5 JB |
1571 | pty_flag = 1; |
1572 | } | |
1573 | else | |
1574 | #endif /* HAVE_PTYS */ | |
d0d6b7c5 | 1575 | { |
fc14013c KH |
1576 | int tem; |
1577 | tem = pipe (sv); | |
1578 | if (tem < 0) | |
1579 | report_file_error ("Creating pipe", Qnil); | |
d0d6b7c5 JB |
1580 | inchannel = sv[0]; |
1581 | forkout = sv[1]; | |
fc14013c KH |
1582 | tem = pipe (sv); |
1583 | if (tem < 0) | |
1584 | { | |
68c45bf0 PE |
1585 | emacs_close (inchannel); |
1586 | emacs_close (forkout); | |
fc14013c KH |
1587 | report_file_error ("Creating pipe", Qnil); |
1588 | } | |
d0d6b7c5 JB |
1589 | outchannel = sv[1]; |
1590 | forkin = sv[0]; | |
1591 | } | |
d0d6b7c5 | 1592 | |
2c4df143 YM |
1593 | #if !defined (WINDOWSNT) && defined (FD_CLOEXEC) |
1594 | { | |
1595 | int tem; | |
1596 | ||
1597 | tem = pipe (wait_child_setup); | |
1598 | if (tem < 0) | |
1599 | report_file_error ("Creating pipe", Qnil); | |
1600 | tem = fcntl (wait_child_setup[1], F_GETFD, 0); | |
1601 | if (tem >= 0) | |
1602 | tem = fcntl (wait_child_setup[1], F_SETFD, tem | FD_CLOEXEC); | |
1603 | if (tem < 0) | |
1604 | { | |
1605 | emacs_close (wait_child_setup[0]); | |
1606 | emacs_close (wait_child_setup[1]); | |
1607 | report_file_error ("Setting file descriptor flags", Qnil); | |
1608 | } | |
1609 | } | |
1610 | #endif | |
1611 | ||
d0d6b7c5 JB |
1612 | #ifdef O_NONBLOCK |
1613 | fcntl (inchannel, F_SETFL, O_NONBLOCK); | |
03832893 | 1614 | fcntl (outchannel, F_SETFL, O_NONBLOCK); |
d0d6b7c5 JB |
1615 | #else |
1616 | #ifdef O_NDELAY | |
1617 | fcntl (inchannel, F_SETFL, O_NDELAY); | |
03832893 | 1618 | fcntl (outchannel, F_SETFL, O_NDELAY); |
d0d6b7c5 JB |
1619 | #endif |
1620 | #endif | |
1621 | ||
1622 | /* Record this as an active process, with its channels. | |
1623 | As a result, child_setup will close Emacs's side of the pipes. */ | |
1624 | chan_process[inchannel] = process; | |
60f0fb11 SM |
1625 | XPROCESS (process)->infd = inchannel; |
1626 | XPROCESS (process)->outfd = outchannel; | |
16782258 JD |
1627 | |
1628 | /* Previously we recorded the tty descriptor used in the subprocess. | |
1629 | It was only used for getting the foreground tty process, so now | |
1630 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
1631 | more portable (see USG_SUBTTY_WORKS above). */ | |
1632 | ||
60f0fb11 | 1633 | XPROCESS (process)->pty_flag = pty_flag; |
d0d6b7c5 | 1634 | XPROCESS (process)->status = Qrun; |
03f04413 | 1635 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
1636 | |
1637 | /* Delay interrupts until we have a chance to store | |
1638 | the new fork's pid in its process structure */ | |
0dc70c33 KH |
1639 | sigemptyset (&blocked); |
1640 | #ifdef SIGCHLD | |
1641 | sigaddset (&blocked, SIGCHLD); | |
1642 | #endif | |
351e611f | 1643 | #ifdef HAVE_WORKING_VFORK |
0dc70c33 KH |
1644 | /* On many hosts (e.g. Solaris 2.4), if a vforked child calls `signal', |
1645 | this sets the parent's signal handlers as well as the child's. | |
1646 | So delay all interrupts whose handlers the child might munge, | |
1647 | and record the current handlers so they can be restored later. */ | |
1648 | sigaddset (&blocked, SIGINT ); sigaction (SIGINT , 0, &sigint_action ); | |
1649 | sigaddset (&blocked, SIGQUIT); sigaction (SIGQUIT, 0, &sigquit_action); | |
c0ad4ea5 | 1650 | sigaddset (&blocked, SIGPIPE); sigaction (SIGPIPE, 0, &sigpipe_action); |
0dc70c33 KH |
1651 | #ifdef AIX |
1652 | sigaddset (&blocked, SIGHUP ); sigaction (SIGHUP , 0, &sighup_action ); | |
1653 | #endif | |
351e611f | 1654 | #endif /* HAVE_WORKING_VFORK */ |
0dc70c33 | 1655 | sigprocmask (SIG_BLOCK, &blocked, &procmask); |
d0d6b7c5 | 1656 | |
3081bf8d | 1657 | FD_SET (inchannel, &input_wait_mask); |
a69281ff | 1658 | FD_SET (inchannel, &non_keyboard_wait_mask); |
3081bf8d KH |
1659 | if (inchannel > max_process_desc) |
1660 | max_process_desc = inchannel; | |
1661 | ||
d0d6b7c5 JB |
1662 | /* Until we store the proper pid, enable sigchld_handler |
1663 | to recognize an unknown pid as standing for this process. | |
1664 | It is very important not to let this `marker' value stay | |
1665 | in the table after this function has returned; if it does | |
1666 | it might cause call-process to hang and subsequent asynchronous | |
1667 | processes to get their return values scrambled. */ | |
6bfd98e7 | 1668 | XPROCESS (process)->pid = -1; |
d0d6b7c5 | 1669 | |
ececcbec | 1670 | BLOCK_INPUT; |
177c0ea7 | 1671 | |
d0d6b7c5 JB |
1672 | { |
1673 | /* child_setup must clobber environ on systems with true vfork. | |
1674 | Protect it from permanent change. */ | |
1675 | char **save_environ = environ; | |
12d8b6ab | 1676 | volatile Lisp_Object encoded_current_dir = ENCODE_FILE (current_dir); |
a932f187 | 1677 | |
e98d950b | 1678 | #ifndef WINDOWSNT |
d0d6b7c5 JB |
1679 | pid = vfork (); |
1680 | if (pid == 0) | |
e98d950b | 1681 | #endif /* not WINDOWSNT */ |
d0d6b7c5 JB |
1682 | { |
1683 | int xforkin = forkin; | |
1684 | int xforkout = forkout; | |
1685 | ||
1686 | #if 0 /* This was probably a mistake--it duplicates code later on, | |
1687 | but fails to handle all the cases. */ | |
1688 | /* Make sure SIGCHLD is not blocked in the child. */ | |
1689 | sigsetmask (SIGEMPTYMASK); | |
1690 | #endif | |
1691 | ||
1692 | /* Make the pty be the controlling terminal of the process. */ | |
1693 | #ifdef HAVE_PTYS | |
1694 | /* First, disconnect its current controlling terminal. */ | |
1695 | #ifdef HAVE_SETSID | |
7ce48618 RS |
1696 | /* We tried doing setsid only if pty_flag, but it caused |
1697 | process_set_signal to fail on SGI when using a pipe. */ | |
1698 | setsid (); | |
ce4c9c90 | 1699 | /* Make the pty's terminal the controlling terminal. */ |
ce8f5a9a | 1700 | if (pty_flag && xforkin >= 0) |
39e9ebcd | 1701 | { |
39e9ebcd RS |
1702 | #ifdef TIOCSCTTY |
1703 | /* We ignore the return value | |
1704 | because faith@cs.unc.edu says that is necessary on Linux. */ | |
1705 | ioctl (xforkin, TIOCSCTTY, 0); | |
ce4c9c90 | 1706 | #endif |
39e9ebcd | 1707 | } |
d0d6b7c5 | 1708 | #else /* not HAVE_SETSID */ |
c14e53a4 | 1709 | #ifdef USG |
000ab717 | 1710 | /* It's very important to call setpgrp here and no time |
d0d6b7c5 JB |
1711 | afterwards. Otherwise, we lose our controlling tty which |
1712 | is set when we open the pty. */ | |
1713 | setpgrp (); | |
1714 | #endif /* USG */ | |
1715 | #endif /* not HAVE_SETSID */ | |
a7ebc409 | 1716 | #if defined (LDISC1) |
9bcf8ec6 KH |
1717 | if (pty_flag && xforkin >= 0) |
1718 | { | |
1719 | struct termios t; | |
1720 | tcgetattr (xforkin, &t); | |
1721 | t.c_lflag = LDISC1; | |
1722 | if (tcsetattr (xforkin, TCSANOW, &t) < 0) | |
68c45bf0 | 1723 | emacs_write (1, "create_process/tcsetattr LDISC1 failed\n", 39); |
9bcf8ec6 KH |
1724 | } |
1725 | #else | |
aafadd9f | 1726 | #if defined (NTTYDISC) && defined (TIOCSETD) |
ff773a4e | 1727 | if (pty_flag && xforkin >= 0) |
afc549fd RS |
1728 | { |
1729 | /* Use new line discipline. */ | |
1730 | int ldisc = NTTYDISC; | |
4458f555 | 1731 | ioctl (xforkin, TIOCSETD, &ldisc); |
afc549fd | 1732 | } |
000ab717 | 1733 | #endif |
9bcf8ec6 | 1734 | #endif |
177c0ea7 | 1735 | #ifdef TIOCNOTTY |
d0d6b7c5 JB |
1736 | /* In 4.3BSD, the TIOCSPGRP bug has been fixed, and now you |
1737 | can do TIOCSPGRP only to the process's controlling tty. */ | |
1738 | if (pty_flag) | |
1739 | { | |
177c0ea7 | 1740 | /* I wonder: would just ioctl (0, TIOCNOTTY, 0) work here? |
d0d6b7c5 | 1741 | I can't test it since I don't have 4.3. */ |
68c45bf0 | 1742 | int j = emacs_open ("/dev/tty", O_RDWR, 0); |
ce8f5a9a AS |
1743 | if (j >= 0) |
1744 | { | |
1745 | ioctl (j, TIOCNOTTY, 0); | |
1746 | emacs_close (j); | |
1747 | } | |
5a570e37 | 1748 | #ifndef USG |
d0d6b7c5 JB |
1749 | /* In order to get a controlling terminal on some versions |
1750 | of BSD, it is necessary to put the process in pgrp 0 | |
1751 | before it opens the terminal. */ | |
99c1aeca | 1752 | #ifdef HAVE_SETPGID |
3ea1d291 RS |
1753 | setpgid (0, 0); |
1754 | #else | |
d0d6b7c5 | 1755 | setpgrp (0, 0); |
3ea1d291 | 1756 | #endif |
d0d6b7c5 JB |
1757 | #endif |
1758 | } | |
1759 | #endif /* TIOCNOTTY */ | |
1760 | ||
e39a993c | 1761 | #if !defined (DONT_REOPEN_PTY) |
d0d6b7c5 | 1762 | /*** There is a suggestion that this ought to be a |
99153b9e RS |
1763 | conditional on TIOCSPGRP, |
1764 | or !(defined (HAVE_SETSID) && defined (TIOCSCTTY)). | |
1765 | Trying the latter gave the wrong results on Debian GNU/Linux 1.1; | |
1766 | that system does seem to need this code, even though | |
1767 | both HAVE_SETSID and TIOCSCTTY are defined. */ | |
d0d6b7c5 JB |
1768 | /* Now close the pty (if we had it open) and reopen it. |
1769 | This makes the pty the controlling terminal of the subprocess. */ | |
1770 | if (pty_flag) | |
1771 | { | |
99e3d726 | 1772 | |
68c45bf0 PE |
1773 | /* I wonder if emacs_close (emacs_open (pty_name, ...)) |
1774 | would work? */ | |
d0d6b7c5 | 1775 | if (xforkin >= 0) |
68c45bf0 PE |
1776 | emacs_close (xforkin); |
1777 | xforkout = xforkin = emacs_open (pty_name, O_RDWR, 0); | |
d0d6b7c5 | 1778 | |
4aa54ba8 RS |
1779 | if (xforkin < 0) |
1780 | { | |
68c45bf0 PE |
1781 | emacs_write (1, "Couldn't open the pty terminal ", 31); |
1782 | emacs_write (1, pty_name, strlen (pty_name)); | |
1783 | emacs_write (1, "\n", 1); | |
4aa54ba8 RS |
1784 | _exit (1); |
1785 | } | |
1786 | ||
d0d6b7c5 | 1787 | } |
e39a993c | 1788 | #endif /* not DONT_REOPEN_PTY */ |
e9bf058b | 1789 | |
d0d6b7c5 | 1790 | #ifdef SETUP_SLAVE_PTY |
13a72104 RS |
1791 | if (pty_flag) |
1792 | { | |
1793 | SETUP_SLAVE_PTY; | |
1794 | } | |
d0d6b7c5 JB |
1795 | #endif /* SETUP_SLAVE_PTY */ |
1796 | #ifdef AIX | |
1797 | /* On AIX, we've disabled SIGHUP above once we start a child on a pty. | |
1798 | Now reenable it in the child, so it will die when we want it to. */ | |
1799 | if (pty_flag) | |
1800 | signal (SIGHUP, SIG_DFL); | |
1801 | #endif | |
1802 | #endif /* HAVE_PTYS */ | |
1803 | ||
0dc70c33 KH |
1804 | signal (SIGINT, SIG_DFL); |
1805 | signal (SIGQUIT, SIG_DFL); | |
2f9a22e2 | 1806 | /* GConf causes us to ignore SIGPIPE, make sure it is restored |
c0ad4ea5 AS |
1807 | in the child. */ |
1808 | signal (SIGPIPE, SIG_DFL); | |
0dc70c33 KH |
1809 | |
1810 | /* Stop blocking signals in the child. */ | |
0dc70c33 | 1811 | sigprocmask (SIG_SETMASK, &procmask, 0); |
5e7e1da2 | 1812 | |
ab01d0a8 RS |
1813 | if (pty_flag) |
1814 | child_setup_tty (xforkout); | |
e98d950b RS |
1815 | #ifdef WINDOWSNT |
1816 | pid = child_setup (xforkin, xforkout, xforkout, | |
12d8b6ab | 1817 | new_argv, 1, encoded_current_dir); |
177c0ea7 | 1818 | #else /* not WINDOWSNT */ |
2c4df143 YM |
1819 | #ifdef FD_CLOEXEC |
1820 | emacs_close (wait_child_setup[0]); | |
1821 | #endif | |
d0d6b7c5 | 1822 | child_setup (xforkin, xforkout, xforkout, |
12d8b6ab | 1823 | new_argv, 1, encoded_current_dir); |
e98d950b | 1824 | #endif /* not WINDOWSNT */ |
d0d6b7c5 JB |
1825 | } |
1826 | environ = save_environ; | |
1827 | } | |
1828 | ||
ececcbec RS |
1829 | UNBLOCK_INPUT; |
1830 | ||
4a127b3b | 1831 | /* This runs in the Emacs process. */ |
d0d6b7c5 | 1832 | if (pid < 0) |
6311cf58 RS |
1833 | { |
1834 | if (forkin >= 0) | |
68c45bf0 | 1835 | emacs_close (forkin); |
6311cf58 | 1836 | if (forkin != forkout && forkout >= 0) |
68c45bf0 | 1837 | emacs_close (forkout); |
6311cf58 | 1838 | } |
4a127b3b KH |
1839 | else |
1840 | { | |
1841 | /* vfork succeeded. */ | |
6bfd98e7 | 1842 | XPROCESS (process)->pid = pid; |
d0d6b7c5 | 1843 | |
e98d950b | 1844 | #ifdef WINDOWSNT |
4a127b3b | 1845 | register_child (pid, inchannel); |
e98d950b RS |
1846 | #endif /* WINDOWSNT */ |
1847 | ||
4a127b3b KH |
1848 | /* If the subfork execv fails, and it exits, |
1849 | this close hangs. I don't know why. | |
1850 | So have an interrupt jar it loose. */ | |
30904ab7 GM |
1851 | { |
1852 | struct atimer *timer; | |
1853 | EMACS_TIME offset; | |
177c0ea7 | 1854 | |
30904ab7 GM |
1855 | stop_polling (); |
1856 | EMACS_SET_SECS_USECS (offset, 1, 0); | |
1857 | timer = start_atimer (ATIMER_RELATIVE, offset, create_process_1, 0); | |
177c0ea7 | 1858 | |
30904ab7 GM |
1859 | if (forkin >= 0) |
1860 | emacs_close (forkin); | |
1861 | ||
1862 | cancel_atimer (timer); | |
1863 | start_polling (); | |
1864 | } | |
177c0ea7 | 1865 | |
4a127b3b | 1866 | if (forkin != forkout && forkout >= 0) |
68c45bf0 | 1867 | emacs_close (forkout); |
d0d6b7c5 | 1868 | |
875e6b94 | 1869 | #ifdef HAVE_PTYS |
4a127b3b KH |
1870 | if (pty_flag) |
1871 | XPROCESS (process)->tty_name = build_string (pty_name); | |
1872 | else | |
875e6b94 | 1873 | #endif |
4a127b3b | 1874 | XPROCESS (process)->tty_name = Qnil; |
2c4df143 YM |
1875 | |
1876 | #if !defined (WINDOWSNT) && defined (FD_CLOEXEC) | |
1877 | /* Wait for child_setup to complete in case that vfork is | |
1878 | actually defined as fork. The descriptor wait_child_setup[1] | |
1879 | of a pipe is closed at the child side either by close-on-exec | |
1880 | on successful execvp or the _exit call in child_setup. */ | |
1881 | { | |
1882 | char dummy; | |
1883 | ||
1884 | emacs_close (wait_child_setup[1]); | |
1885 | emacs_read (wait_child_setup[0], &dummy, 1); | |
1886 | emacs_close (wait_child_setup[0]); | |
1887 | } | |
1888 | #endif | |
4a127b3b | 1889 | } |
3b9a3dfa | 1890 | |
4a127b3b KH |
1891 | /* Restore the signal state whether vfork succeeded or not. |
1892 | (We will signal an error, below, if it failed.) */ | |
351e611f | 1893 | #ifdef HAVE_WORKING_VFORK |
0dc70c33 KH |
1894 | /* Restore the parent's signal handlers. */ |
1895 | sigaction (SIGINT, &sigint_action, 0); | |
1896 | sigaction (SIGQUIT, &sigquit_action, 0); | |
c0ad4ea5 | 1897 | sigaction (SIGPIPE, &sigpipe_action, 0); |
0dc70c33 KH |
1898 | #ifdef AIX |
1899 | sigaction (SIGHUP, &sighup_action, 0); | |
1900 | #endif | |
351e611f | 1901 | #endif /* HAVE_WORKING_VFORK */ |
0dc70c33 KH |
1902 | /* Stop blocking signals in the parent. */ |
1903 | sigprocmask (SIG_SETMASK, &procmask, 0); | |
4a127b3b KH |
1904 | |
1905 | /* Now generate the error if vfork failed. */ | |
1906 | if (pid < 0) | |
1907 | report_file_error ("Doing vfork", Qnil); | |
d0d6b7c5 | 1908 | } |
d0d6b7c5 | 1909 | |
850d0752 | 1910 | void |
d3da34e0 | 1911 | create_pty (Lisp_Object process) |
850d0752 NR |
1912 | { |
1913 | int inchannel, outchannel; | |
afd4052b | 1914 | int pty_flag = 0; |
850d0752 NR |
1915 | |
1916 | inchannel = outchannel = -1; | |
1917 | ||
1918 | #ifdef HAVE_PTYS | |
1919 | if (!NILP (Vprocess_connection_type)) | |
1920 | outchannel = inchannel = allocate_pty (); | |
1921 | ||
1922 | if (inchannel >= 0) | |
1923 | { | |
1924 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) | |
1925 | /* On most USG systems it does not work to open the pty's tty here, | |
1926 | then close it and reopen it in the child. */ | |
1927 | #ifdef O_NOCTTY | |
1928 | /* Don't let this terminal become our controlling terminal | |
1929 | (in case we don't have one). */ | |
afd4052b | 1930 | int forkout = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); |
850d0752 | 1931 | #else |
afd4052b | 1932 | int forkout = emacs_open (pty_name, O_RDWR, 0); |
850d0752 | 1933 | #endif |
aba7731a | 1934 | if (forkout < 0) |
850d0752 | 1935 | report_file_error ("Opening pty", Qnil); |
019d2c4c | 1936 | #if defined (DONT_REOPEN_PTY) |
850d0752 NR |
1937 | /* In the case that vfork is defined as fork, the parent process |
1938 | (Emacs) may send some data before the child process completes | |
1939 | tty options setup. So we setup tty before forking. */ | |
1940 | child_setup_tty (forkout); | |
019d2c4c | 1941 | #endif /* DONT_REOPEN_PTY */ |
850d0752 NR |
1942 | #endif /* not USG, or USG_SUBTTY_WORKS */ |
1943 | pty_flag = 1; | |
1944 | } | |
1945 | #endif /* HAVE_PTYS */ | |
1946 | ||
1947 | #ifdef O_NONBLOCK | |
1948 | fcntl (inchannel, F_SETFL, O_NONBLOCK); | |
1949 | fcntl (outchannel, F_SETFL, O_NONBLOCK); | |
1950 | #else | |
1951 | #ifdef O_NDELAY | |
1952 | fcntl (inchannel, F_SETFL, O_NDELAY); | |
1953 | fcntl (outchannel, F_SETFL, O_NDELAY); | |
1954 | #endif | |
1955 | #endif | |
1956 | ||
1957 | /* Record this as an active process, with its channels. | |
1958 | As a result, child_setup will close Emacs's side of the pipes. */ | |
1959 | chan_process[inchannel] = process; | |
1960 | XPROCESS (process)->infd = inchannel; | |
1961 | XPROCESS (process)->outfd = outchannel; | |
1962 | ||
1963 | /* Previously we recorded the tty descriptor used in the subprocess. | |
1964 | It was only used for getting the foreground tty process, so now | |
1965 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
1966 | more portable (see USG_SUBTTY_WORKS above). */ | |
1967 | ||
1968 | XPROCESS (process)->pty_flag = pty_flag; | |
1969 | XPROCESS (process)->status = Qrun; | |
1970 | setup_process_coding_systems (process); | |
1971 | ||
1972 | FD_SET (inchannel, &input_wait_mask); | |
1973 | FD_SET (inchannel, &non_keyboard_wait_mask); | |
1974 | if (inchannel > max_process_desc) | |
1975 | max_process_desc = inchannel; | |
1976 | ||
1977 | XPROCESS (process)->pid = -2; | |
8b9fc636 EZ |
1978 | #ifdef HAVE_PTYS |
1979 | if (pty_flag) | |
1980 | XPROCESS (process)->tty_name = build_string (pty_name); | |
1981 | else | |
1982 | #endif | |
1983 | XPROCESS (process)->tty_name = Qnil; | |
850d0752 NR |
1984 | } |
1985 | ||
e690ca94 | 1986 | \f |
e690ca94 KS |
1987 | /* Convert an internal struct sockaddr to a lisp object (vector or string). |
1988 | The address family of sa is not included in the result. */ | |
1989 | ||
1990 | static Lisp_Object | |
d3da34e0 | 1991 | conv_sockaddr_to_lisp (struct sockaddr *sa, int len) |
e690ca94 KS |
1992 | { |
1993 | Lisp_Object address; | |
1994 | int i; | |
1995 | unsigned char *cp; | |
1996 | register struct Lisp_Vector *p; | |
1997 | ||
63136da6 AS |
1998 | /* Workaround for a bug in getsockname on BSD: Names bound to |
1999 | sockets in the UNIX domain are inaccessible; getsockname returns | |
2000 | a zero length name. */ | |
89887d67 | 2001 | if (len < offsetof (struct sockaddr, sa_family) + sizeof (sa->sa_family)) |
fff4e459 | 2002 | return empty_unibyte_string; |
63136da6 | 2003 | |
e690ca94 KS |
2004 | switch (sa->sa_family) |
2005 | { | |
2006 | case AF_INET: | |
2007 | { | |
2008 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
2009 | len = sizeof (sin->sin_addr) + 1; | |
2010 | address = Fmake_vector (make_number (len), Qnil); | |
2011 | p = XVECTOR (address); | |
2012 | p->contents[--len] = make_number (ntohs (sin->sin_port)); | |
63136da6 | 2013 | cp = (unsigned char *) &sin->sin_addr; |
e690ca94 KS |
2014 | break; |
2015 | } | |
e1652a86 KS |
2016 | #ifdef AF_INET6 |
2017 | case AF_INET6: | |
2018 | { | |
2019 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
63136da6 | 2020 | uint16_t *ip6 = (uint16_t *) &sin6->sin6_addr; |
e1652a86 KS |
2021 | len = sizeof (sin6->sin6_addr)/2 + 1; |
2022 | address = Fmake_vector (make_number (len), Qnil); | |
2023 | p = XVECTOR (address); | |
2024 | p->contents[--len] = make_number (ntohs (sin6->sin6_port)); | |
2025 | for (i = 0; i < len; i++) | |
2026 | p->contents[i] = make_number (ntohs (ip6[i])); | |
2027 | return address; | |
2028 | } | |
2029 | #endif | |
e690ca94 KS |
2030 | #ifdef HAVE_LOCAL_SOCKETS |
2031 | case AF_LOCAL: | |
2032 | { | |
fb23673a EZ |
2033 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
2034 | for (i = 0; i < sizeof (sockun->sun_path); i++) | |
2035 | if (sockun->sun_path[i] == 0) | |
e690ca94 | 2036 | break; |
fb23673a | 2037 | return make_unibyte_string (sockun->sun_path, i); |
e690ca94 KS |
2038 | } |
2039 | #endif | |
2040 | default: | |
89887d67 | 2041 | len -= offsetof (struct sockaddr, sa_family) + sizeof (sa->sa_family); |
e690ca94 KS |
2042 | address = Fcons (make_number (sa->sa_family), |
2043 | Fmake_vector (make_number (len), Qnil)); | |
2044 | p = XVECTOR (XCDR (address)); | |
63136da6 | 2045 | cp = (unsigned char *) &sa->sa_family + sizeof (sa->sa_family); |
e690ca94 KS |
2046 | break; |
2047 | } | |
2048 | ||
2049 | i = 0; | |
2050 | while (i < len) | |
2051 | p->contents[i++] = make_number (*cp++); | |
2052 | ||
2053 | return address; | |
2054 | } | |
2055 | ||
2056 | ||
2057 | /* Get family and required size for sockaddr structure to hold ADDRESS. */ | |
2058 | ||
2059 | static int | |
d3da34e0 | 2060 | get_lisp_to_sockaddr_size (Lisp_Object address, int *familyp) |
e690ca94 KS |
2061 | { |
2062 | register struct Lisp_Vector *p; | |
2063 | ||
2064 | if (VECTORP (address)) | |
2065 | { | |
2066 | p = XVECTOR (address); | |
eab3844f | 2067 | if (p->header.size == 5) |
e690ca94 KS |
2068 | { |
2069 | *familyp = AF_INET; | |
2070 | return sizeof (struct sockaddr_in); | |
2071 | } | |
e1652a86 | 2072 | #ifdef AF_INET6 |
eab3844f | 2073 | else if (p->header.size == 9) |
e1652a86 KS |
2074 | { |
2075 | *familyp = AF_INET6; | |
2076 | return sizeof (struct sockaddr_in6); | |
2077 | } | |
2078 | #endif | |
e690ca94 KS |
2079 | } |
2080 | #ifdef HAVE_LOCAL_SOCKETS | |
2081 | else if (STRINGP (address)) | |
2082 | { | |
2083 | *familyp = AF_LOCAL; | |
2084 | return sizeof (struct sockaddr_un); | |
2085 | } | |
2086 | #endif | |
2087 | else if (CONSP (address) && INTEGERP (XCAR (address)) && VECTORP (XCDR (address))) | |
2088 | { | |
2089 | struct sockaddr *sa; | |
2090 | *familyp = XINT (XCAR (address)); | |
2091 | p = XVECTOR (XCDR (address)); | |
eab3844f | 2092 | return p->header.size + sizeof (sa->sa_family); |
e690ca94 KS |
2093 | } |
2094 | return 0; | |
2095 | } | |
2096 | ||
2097 | /* Convert an address object (vector or string) to an internal sockaddr. | |
9d1a8e5d RS |
2098 | |
2099 | The address format has been basically validated by | |
2100 | get_lisp_to_sockaddr_size, but this does not mean FAMILY is valid; | |
2101 | it could have come from user data. So if FAMILY is not valid, | |
2102 | we return after zeroing *SA. */ | |
e690ca94 KS |
2103 | |
2104 | static void | |
d3da34e0 | 2105 | conv_lisp_to_sockaddr (int family, Lisp_Object address, struct sockaddr *sa, int len) |
e690ca94 KS |
2106 | { |
2107 | register struct Lisp_Vector *p; | |
34967d0f | 2108 | register unsigned char *cp = NULL; |
e690ca94 KS |
2109 | register int i; |
2110 | ||
72af86bd | 2111 | memset (sa, 0, len); |
e690ca94 KS |
2112 | |
2113 | if (VECTORP (address)) | |
2114 | { | |
2115 | p = XVECTOR (address); | |
2116 | if (family == AF_INET) | |
2117 | { | |
2118 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
2119 | len = sizeof (sin->sin_addr) + 1; | |
2120 | i = XINT (p->contents[--len]); | |
2121 | sin->sin_port = htons (i); | |
2122 | cp = (unsigned char *)&sin->sin_addr; | |
9d1a8e5d | 2123 | sa->sa_family = family; |
e690ca94 | 2124 | } |
e1652a86 KS |
2125 | #ifdef AF_INET6 |
2126 | else if (family == AF_INET6) | |
2127 | { | |
2128 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
2129 | uint16_t *ip6 = (uint16_t *)&sin6->sin6_addr; | |
2130 | len = sizeof (sin6->sin6_addr) + 1; | |
2131 | i = XINT (p->contents[--len]); | |
2132 | sin6->sin6_port = htons (i); | |
2133 | for (i = 0; i < len; i++) | |
2134 | if (INTEGERP (p->contents[i])) | |
2135 | { | |
2136 | int j = XFASTINT (p->contents[i]) & 0xffff; | |
2137 | ip6[i] = ntohs (j); | |
2138 | } | |
9d1a8e5d | 2139 | sa->sa_family = family; |
0eb7675e | 2140 | return; |
e1652a86 KS |
2141 | } |
2142 | #endif | |
0eb7675e AS |
2143 | else |
2144 | return; | |
e690ca94 KS |
2145 | } |
2146 | else if (STRINGP (address)) | |
2147 | { | |
2148 | #ifdef HAVE_LOCAL_SOCKETS | |
2149 | if (family == AF_LOCAL) | |
2150 | { | |
fb23673a | 2151 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
d5db4077 | 2152 | cp = SDATA (address); |
fb23673a EZ |
2153 | for (i = 0; i < sizeof (sockun->sun_path) && *cp; i++) |
2154 | sockun->sun_path[i] = *cp++; | |
9d1a8e5d | 2155 | sa->sa_family = family; |
e690ca94 KS |
2156 | } |
2157 | #endif | |
2158 | return; | |
2159 | } | |
2160 | else | |
2161 | { | |
2162 | p = XVECTOR (XCDR (address)); | |
2163 | cp = (unsigned char *)sa + sizeof (sa->sa_family); | |
2164 | } | |
2165 | ||
2166 | for (i = 0; i < len; i++) | |
2167 | if (INTEGERP (p->contents[i])) | |
2168 | *cp++ = XFASTINT (p->contents[i]) & 0xff; | |
2169 | } | |
2170 | ||
2171 | #ifdef DATAGRAM_SOCKETS | |
2172 | DEFUN ("process-datagram-address", Fprocess_datagram_address, Sprocess_datagram_address, | |
2173 | 1, 1, 0, | |
2174 | doc: /* Get the current datagram address associated with PROCESS. */) | |
5842a27b | 2175 | (Lisp_Object process) |
e690ca94 KS |
2176 | { |
2177 | int channel; | |
2178 | ||
2179 | CHECK_PROCESS (process); | |
2180 | ||
2181 | if (!DATAGRAM_CONN_P (process)) | |
2182 | return Qnil; | |
2183 | ||
60f0fb11 | 2184 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2185 | return conv_sockaddr_to_lisp (datagram_address[channel].sa, |
2186 | datagram_address[channel].len); | |
2187 | } | |
2188 | ||
2189 | DEFUN ("set-process-datagram-address", Fset_process_datagram_address, Sset_process_datagram_address, | |
2190 | 2, 2, 0, | |
2191 | doc: /* Set the datagram address for PROCESS to ADDRESS. | |
2192 | Returns nil upon error setting address, ADDRESS otherwise. */) | |
5842a27b | 2193 | (Lisp_Object process, Lisp_Object address) |
e690ca94 KS |
2194 | { |
2195 | int channel; | |
2196 | int family, len; | |
2197 | ||
2198 | CHECK_PROCESS (process); | |
2199 | ||
2200 | if (!DATAGRAM_CONN_P (process)) | |
2201 | return Qnil; | |
2202 | ||
60f0fb11 | 2203 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2204 | |
2205 | len = get_lisp_to_sockaddr_size (address, &family); | |
2206 | if (datagram_address[channel].len != len) | |
2207 | return Qnil; | |
2208 | conv_lisp_to_sockaddr (family, address, datagram_address[channel].sa, len); | |
2209 | return address; | |
2210 | } | |
2211 | #endif | |
2212 | \f | |
2213 | ||
5e2327cf | 2214 | static const struct socket_options { |
e690ca94 | 2215 | /* The name of this option. Should be lowercase version of option |
177c0ea7 | 2216 | name without SO_ prefix. */ |
fce70521 | 2217 | const char *name; |
e690ca94 KS |
2218 | /* Option level SOL_... */ |
2219 | int optlevel; | |
2220 | /* Option number SO_... */ | |
2221 | int optnum; | |
6b61353c KH |
2222 | enum { SOPT_UNKNOWN, SOPT_BOOL, SOPT_INT, SOPT_IFNAME, SOPT_LINGER } opttype; |
2223 | enum { OPIX_NONE=0, OPIX_MISC=1, OPIX_REUSEADDR=2 } optbit; | |
e690ca94 KS |
2224 | } socket_options[] = |
2225 | { | |
2226 | #ifdef SO_BINDTODEVICE | |
6b61353c | 2227 | { ":bindtodevice", SOL_SOCKET, SO_BINDTODEVICE, SOPT_IFNAME, OPIX_MISC }, |
e690ca94 KS |
2228 | #endif |
2229 | #ifdef SO_BROADCAST | |
6b61353c | 2230 | { ":broadcast", SOL_SOCKET, SO_BROADCAST, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2231 | #endif |
2232 | #ifdef SO_DONTROUTE | |
6b61353c | 2233 | { ":dontroute", SOL_SOCKET, SO_DONTROUTE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2234 | #endif |
2235 | #ifdef SO_KEEPALIVE | |
6b61353c | 2236 | { ":keepalive", SOL_SOCKET, SO_KEEPALIVE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2237 | #endif |
2238 | #ifdef SO_LINGER | |
6b61353c | 2239 | { ":linger", SOL_SOCKET, SO_LINGER, SOPT_LINGER, OPIX_MISC }, |
e690ca94 KS |
2240 | #endif |
2241 | #ifdef SO_OOBINLINE | |
6b61353c | 2242 | { ":oobinline", SOL_SOCKET, SO_OOBINLINE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2243 | #endif |
2244 | #ifdef SO_PRIORITY | |
6b61353c | 2245 | { ":priority", SOL_SOCKET, SO_PRIORITY, SOPT_INT, OPIX_MISC }, |
e690ca94 KS |
2246 | #endif |
2247 | #ifdef SO_REUSEADDR | |
6b61353c | 2248 | { ":reuseaddr", SOL_SOCKET, SO_REUSEADDR, SOPT_BOOL, OPIX_REUSEADDR }, |
e690ca94 | 2249 | #endif |
6b61353c | 2250 | { 0, 0, 0, SOPT_UNKNOWN, OPIX_NONE } |
e690ca94 KS |
2251 | }; |
2252 | ||
6b61353c | 2253 | /* Set option OPT to value VAL on socket S. |
e690ca94 | 2254 | |
6b61353c KH |
2255 | Returns (1<<socket_options[OPT].optbit) if option is known, 0 otherwise. |
2256 | Signals an error if setting a known option fails. | |
2257 | */ | |
e690ca94 KS |
2258 | |
2259 | static int | |
d3da34e0 | 2260 | set_socket_option (int s, Lisp_Object opt, Lisp_Object val) |
e690ca94 | 2261 | { |
6b61353c | 2262 | char *name; |
5e2327cf | 2263 | const struct socket_options *sopt; |
6b61353c | 2264 | int ret = 0; |
e690ca94 | 2265 | |
6b61353c | 2266 | CHECK_SYMBOL (opt); |
e690ca94 | 2267 | |
51b59d79 | 2268 | name = SSDATA (SYMBOL_NAME (opt)); |
6b61353c KH |
2269 | for (sopt = socket_options; sopt->name; sopt++) |
2270 | if (strcmp (name, sopt->name) == 0) | |
2271 | break; | |
e690ca94 | 2272 | |
6b61353c KH |
2273 | switch (sopt->opttype) |
2274 | { | |
2275 | case SOPT_BOOL: | |
2276 | { | |
2277 | int optval; | |
2278 | optval = NILP (val) ? 0 : 1; | |
2279 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2280 | &optval, sizeof (optval)); | |
2281 | break; | |
2282 | } | |
e690ca94 | 2283 | |
6b61353c KH |
2284 | case SOPT_INT: |
2285 | { | |
2286 | int optval; | |
2287 | if (INTEGERP (val)) | |
2288 | optval = XINT (val); | |
2289 | else | |
2290 | error ("Bad option value for %s", name); | |
2291 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2292 | &optval, sizeof (optval)); | |
2293 | break; | |
2294 | } | |
e690ca94 | 2295 | |
6b61353c KH |
2296 | #ifdef SO_BINDTODEVICE |
2297 | case SOPT_IFNAME: | |
2298 | { | |
2299 | char devname[IFNAMSIZ+1]; | |
e690ca94 | 2300 | |
6b61353c KH |
2301 | /* This is broken, at least in the Linux 2.4 kernel. |
2302 | To unbind, the arg must be a zero integer, not the empty string. | |
2303 | This should work on all systems. KFS. 2003-09-23. */ | |
72af86bd | 2304 | memset (devname, 0, sizeof devname); |
6b61353c | 2305 | if (STRINGP (val)) |
e690ca94 | 2306 | { |
51b59d79 | 2307 | char *arg = SSDATA (val); |
6b61353c | 2308 | int len = min (strlen (arg), IFNAMSIZ); |
72af86bd | 2309 | memcpy (devname, arg, len); |
e690ca94 | 2310 | } |
6b61353c KH |
2311 | else if (!NILP (val)) |
2312 | error ("Bad option value for %s", name); | |
2313 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2314 | devname, IFNAMSIZ); | |
2315 | break; | |
2316 | } | |
2317 | #endif | |
e690ca94 | 2318 | |
177c0ea7 | 2319 | #ifdef SO_LINGER |
6b61353c KH |
2320 | case SOPT_LINGER: |
2321 | { | |
2322 | struct linger linger; | |
e690ca94 | 2323 | |
6b61353c KH |
2324 | linger.l_onoff = 1; |
2325 | linger.l_linger = 0; | |
2326 | if (INTEGERP (val)) | |
2327 | linger.l_linger = XINT (val); | |
2328 | else | |
2329 | linger.l_onoff = NILP (val) ? 0 : 1; | |
2330 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2331 | &linger, sizeof (linger)); | |
2332 | break; | |
2333 | } | |
e690ca94 | 2334 | #endif |
6b61353c KH |
2335 | |
2336 | default: | |
2337 | return 0; | |
e690ca94 | 2338 | } |
6b61353c KH |
2339 | |
2340 | if (ret < 0) | |
2341 | report_file_error ("Cannot set network option", | |
2342 | Fcons (opt, Fcons (val, Qnil))); | |
2343 | return (1 << sopt->optbit); | |
e690ca94 KS |
2344 | } |
2345 | ||
6b61353c KH |
2346 | |
2347 | DEFUN ("set-network-process-option", | |
2348 | Fset_network_process_option, Sset_network_process_option, | |
2349 | 3, 4, 0, | |
2350 | doc: /* For network process PROCESS set option OPTION to value VALUE. | |
2351 | See `make-network-process' for a list of options and values. | |
2352 | If optional fourth arg NO-ERROR is non-nil, don't signal an error if | |
2353 | OPTION is not a supported option, return nil instead; otherwise return t. */) | |
5842a27b | 2354 | (Lisp_Object process, Lisp_Object option, Lisp_Object value, Lisp_Object no_error) |
e690ca94 | 2355 | { |
6b61353c KH |
2356 | int s; |
2357 | struct Lisp_Process *p; | |
e690ca94 | 2358 | |
e690ca94 | 2359 | CHECK_PROCESS (process); |
6b61353c KH |
2360 | p = XPROCESS (process); |
2361 | if (!NETCONN1_P (p)) | |
2362 | error ("Process is not a network process"); | |
2363 | ||
60f0fb11 | 2364 | s = p->infd; |
6b61353c KH |
2365 | if (s < 0) |
2366 | error ("Process is not running"); | |
2367 | ||
2368 | if (set_socket_option (s, option, value)) | |
e690ca94 | 2369 | { |
6b61353c KH |
2370 | p->childp = Fplist_put (p->childp, option, value); |
2371 | return Qt; | |
e690ca94 | 2372 | } |
6b61353c KH |
2373 | |
2374 | if (NILP (no_error)) | |
2375 | error ("Unknown or unsupported option"); | |
2376 | ||
2377 | return Qnil; | |
e690ca94 | 2378 | } |
6b61353c | 2379 | |
e690ca94 | 2380 | \f |
d888760c GM |
2381 | DEFUN ("serial-process-configure", |
2382 | Fserial_process_configure, | |
2383 | Sserial_process_configure, | |
2384 | 0, MANY, 0, | |
2385 | doc: /* Configure speed, bytesize, etc. of a serial process. | |
2386 | ||
2387 | Arguments are specified as keyword/argument pairs. Attributes that | |
2388 | are not given are re-initialized from the process's current | |
2389 | configuration (available via the function `process-contact') or set to | |
2390 | reasonable default values. The following arguments are defined: | |
2391 | ||
2392 | :process PROCESS | |
2393 | :name NAME | |
2394 | :buffer BUFFER | |
2395 | :port PORT | |
2396 | -- Any of these arguments can be given to identify the process that is | |
2397 | to be configured. If none of these arguments is given, the current | |
2398 | buffer's process is used. | |
2399 | ||
2400 | :speed SPEED -- SPEED is the speed of the serial port in bits per | |
2401 | second, also called baud rate. Any value can be given for SPEED, but | |
2402 | most serial ports work only at a few defined values between 1200 and | |
2403 | 115200, with 9600 being the most common value. If SPEED is nil, the | |
2404 | serial port is not configured any further, i.e., all other arguments | |
2405 | are ignored. This may be useful for special serial ports such as | |
2406 | Bluetooth-to-serial converters which can only be configured through AT | |
2407 | commands. A value of nil for SPEED can be used only when passed | |
2408 | through `make-serial-process' or `serial-term'. | |
2409 | ||
2410 | :bytesize BYTESIZE -- BYTESIZE is the number of bits per byte, which | |
2411 | can be 7 or 8. If BYTESIZE is not given or nil, a value of 8 is used. | |
2412 | ||
2413 | :parity PARITY -- PARITY can be nil (don't use parity), the symbol | |
2414 | `odd' (use odd parity), or the symbol `even' (use even parity). If | |
2415 | PARITY is not given, no parity is used. | |
2416 | ||
2417 | :stopbits STOPBITS -- STOPBITS is the number of stopbits used to | |
2418 | terminate a byte transmission. STOPBITS can be 1 or 2. If STOPBITS | |
2419 | is not given or nil, 1 stopbit is used. | |
2420 | ||
2421 | :flowcontrol FLOWCONTROL -- FLOWCONTROL determines the type of | |
2422 | flowcontrol to be used, which is either nil (don't use flowcontrol), | |
2423 | the symbol `hw' (use RTS/CTS hardware flowcontrol), or the symbol `sw' | |
2424 | \(use XON/XOFF software flowcontrol). If FLOWCONTROL is not given, no | |
2425 | flowcontrol is used. | |
2426 | ||
2427 | `serial-process-configure' is called by `make-serial-process' for the | |
2428 | initial configuration of the serial port. | |
2429 | ||
2430 | Examples: | |
2431 | ||
2432 | \(serial-process-configure :process "/dev/ttyS0" :speed 1200) | |
2433 | ||
2434 | \(serial-process-configure | |
2435 | :buffer "COM1" :stopbits 1 :parity 'odd :flowcontrol 'hw) | |
2436 | ||
2437 | \(serial-process-configure :port "\\\\.\\COM13" :bytesize 7) | |
2438 | ||
2439 | usage: (serial-process-configure &rest ARGS) */) | |
f66c7cf8 | 2440 | (ptrdiff_t nargs, Lisp_Object *args) |
d888760c GM |
2441 | { |
2442 | struct Lisp_Process *p; | |
2443 | Lisp_Object contact = Qnil; | |
2444 | Lisp_Object proc = Qnil; | |
2445 | struct gcpro gcpro1; | |
2446 | ||
2447 | contact = Flist (nargs, args); | |
2448 | GCPRO1 (contact); | |
2449 | ||
2450 | proc = Fplist_get (contact, QCprocess); | |
2451 | if (NILP (proc)) | |
2452 | proc = Fplist_get (contact, QCname); | |
2453 | if (NILP (proc)) | |
2454 | proc = Fplist_get (contact, QCbuffer); | |
2455 | if (NILP (proc)) | |
2456 | proc = Fplist_get (contact, QCport); | |
2457 | proc = get_process (proc); | |
2458 | p = XPROCESS (proc); | |
a879ee6f | 2459 | if (!EQ (p->type, Qserial)) |
d888760c GM |
2460 | error ("Not a serial process"); |
2461 | ||
2462 | if (NILP (Fplist_get (p->childp, QCspeed))) | |
2463 | { | |
2464 | UNGCPRO; | |
2465 | return Qnil; | |
2466 | } | |
2467 | ||
2468 | serial_configure (p, contact); | |
2469 | ||
2470 | UNGCPRO; | |
2471 | return Qnil; | |
2472 | } | |
d888760c | 2473 | |
d888760c | 2474 | /* Used by make-serial-process to recover from errors. */ |
b766f867 PE |
2475 | static Lisp_Object |
2476 | make_serial_process_unwind (Lisp_Object proc) | |
d888760c GM |
2477 | { |
2478 | if (!PROCESSP (proc)) | |
2479 | abort (); | |
2480 | remove_process (proc); | |
2481 | return Qnil; | |
2482 | } | |
d888760c | 2483 | |
d888760c GM |
2484 | DEFUN ("make-serial-process", Fmake_serial_process, Smake_serial_process, |
2485 | 0, MANY, 0, | |
2486 | doc: /* Create and return a serial port process. | |
2487 | ||
2488 | In Emacs, serial port connections are represented by process objects, | |
2489 | so input and output work as for subprocesses, and `delete-process' | |
2490 | closes a serial port connection. However, a serial process has no | |
2491 | process id, it cannot be signaled, and the status codes are different | |
2492 | from normal processes. | |
2493 | ||
2494 | `make-serial-process' creates a process and a buffer, on which you | |
2495 | probably want to use `process-send-string'. Try \\[serial-term] for | |
2496 | an interactive terminal. See below for examples. | |
2497 | ||
2498 | Arguments are specified as keyword/argument pairs. The following | |
2499 | arguments are defined: | |
2500 | ||
2501 | :port PORT -- (mandatory) PORT is the path or name of the serial port. | |
2502 | For example, this could be "/dev/ttyS0" on Unix. On Windows, this | |
2503 | could be "COM1", or "\\\\.\\COM10" for ports higher than COM9 (double | |
2504 | the backslashes in strings). | |
2505 | ||
2506 | :speed SPEED -- (mandatory) is handled by `serial-process-configure', | |
2507 | which is called by `make-serial-process'. | |
2508 | ||
2509 | :name NAME -- NAME is the name of the process. If NAME is not given, | |
2510 | the value of PORT is used. | |
2511 | ||
2512 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
2513 | with the process. Process output goes at the end of that buffer, | |
2514 | unless you specify an output stream or filter function to handle the | |
2515 | output. If BUFFER is not given, the value of NAME is used. | |
2516 | ||
2517 | :coding CODING -- If CODING is a symbol, it specifies the coding | |
2518 | system used for both reading and writing for this process. If CODING | |
2519 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
2520 | ENCODING is used for writing. | |
2521 | ||
2522 | :noquery BOOL -- When exiting Emacs, query the user if BOOL is nil and | |
2523 | the process is running. If BOOL is not given, query before exiting. | |
2524 | ||
2525 | :stop BOOL -- Start process in the `stopped' state if BOOL is non-nil. | |
2526 | In the stopped state, a serial process does not accept incoming data, | |
2527 | but you can send outgoing data. The stopped state is cleared by | |
2528 | `continue-process' and set by `stop-process'. | |
2529 | ||
2530 | :filter FILTER -- Install FILTER as the process filter. | |
2531 | ||
2532 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. | |
2533 | ||
2534 | :plist PLIST -- Install PLIST as the initial plist of the process. | |
2535 | ||
2536 | :speed | |
2537 | :bytesize | |
2538 | :parity | |
2539 | :stopbits | |
2540 | :flowcontrol | |
2541 | -- These arguments are handled by `serial-process-configure', which is | |
2542 | called by `make-serial-process'. | |
2543 | ||
2544 | The original argument list, possibly modified by later configuration, | |
2545 | is available via the function `process-contact'. | |
2546 | ||
2547 | Examples: | |
2548 | ||
2549 | \(make-serial-process :port "/dev/ttyS0" :speed 9600) | |
2550 | ||
2551 | \(make-serial-process :port "COM1" :speed 115200 :stopbits 2) | |
2552 | ||
2553 | \(make-serial-process :port "\\\\.\\COM13" :speed 1200 :bytesize 7 :parity 'odd) | |
2554 | ||
2555 | \(make-serial-process :port "/dev/tty.BlueConsole-SPP-1" :speed nil) | |
2556 | ||
2557 | usage: (make-serial-process &rest ARGS) */) | |
f66c7cf8 | 2558 | (ptrdiff_t nargs, Lisp_Object *args) |
d888760c GM |
2559 | { |
2560 | int fd = -1; | |
2561 | Lisp_Object proc, contact, port; | |
2562 | struct Lisp_Process *p; | |
2563 | struct gcpro gcpro1; | |
2564 | Lisp_Object name, buffer; | |
2565 | Lisp_Object tem, val; | |
2566 | int specpdl_count = -1; | |
2567 | ||
2568 | if (nargs == 0) | |
2569 | return Qnil; | |
2570 | ||
2571 | contact = Flist (nargs, args); | |
2572 | GCPRO1 (contact); | |
2573 | ||
2574 | port = Fplist_get (contact, QCport); | |
2575 | if (NILP (port)) | |
2576 | error ("No port specified"); | |
2577 | CHECK_STRING (port); | |
2578 | ||
2579 | if (NILP (Fplist_member (contact, QCspeed))) | |
2580 | error (":speed not specified"); | |
2581 | if (!NILP (Fplist_get (contact, QCspeed))) | |
2582 | CHECK_NUMBER (Fplist_get (contact, QCspeed)); | |
2583 | ||
2584 | name = Fplist_get (contact, QCname); | |
2585 | if (NILP (name)) | |
2586 | name = port; | |
2587 | CHECK_STRING (name); | |
2588 | proc = make_process (name); | |
2589 | specpdl_count = SPECPDL_INDEX (); | |
2590 | record_unwind_protect (make_serial_process_unwind, proc); | |
2591 | p = XPROCESS (proc); | |
2592 | ||
51b59d79 | 2593 | fd = serial_open (SSDATA (port)); |
d888760c GM |
2594 | p->infd = fd; |
2595 | p->outfd = fd; | |
2596 | if (fd > max_process_desc) | |
2597 | max_process_desc = fd; | |
2598 | chan_process[fd] = proc; | |
2599 | ||
2600 | buffer = Fplist_get (contact, QCbuffer); | |
2601 | if (NILP (buffer)) | |
2602 | buffer = name; | |
2603 | buffer = Fget_buffer_create (buffer); | |
2604 | p->buffer = buffer; | |
2605 | ||
2606 | p->childp = contact; | |
2607 | p->plist = Fcopy_sequence (Fplist_get (contact, QCplist)); | |
2608 | p->type = Qserial; | |
2609 | p->sentinel = Fplist_get (contact, QCsentinel); | |
2610 | p->filter = Fplist_get (contact, QCfilter); | |
2611 | p->log = Qnil; | |
2612 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) | |
2613 | p->kill_without_query = 1; | |
2614 | if (tem = Fplist_get (contact, QCstop), !NILP (tem)) | |
2615 | p->command = Qt; | |
2616 | p->pty_flag = 0; | |
2617 | ||
2618 | if (!EQ (p->command, Qt)) | |
2619 | { | |
2620 | FD_SET (fd, &input_wait_mask); | |
2621 | FD_SET (fd, &non_keyboard_wait_mask); | |
2622 | } | |
2623 | ||
2624 | if (BUFFERP (buffer)) | |
2625 | { | |
2626 | set_marker_both (p->mark, buffer, | |
2627 | BUF_ZV (XBUFFER (buffer)), | |
2628 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
2629 | } | |
2630 | ||
2631 | tem = Fplist_member (contact, QCcoding); | |
2632 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
2633 | tem = Qnil; | |
2634 | ||
2635 | val = Qnil; | |
2636 | if (!NILP (tem)) | |
2637 | { | |
2638 | val = XCAR (XCDR (tem)); | |
2639 | if (CONSP (val)) | |
2640 | val = XCAR (val); | |
2641 | } | |
2642 | else if (!NILP (Vcoding_system_for_read)) | |
2643 | val = Vcoding_system_for_read; | |
4b4deea2 TT |
2644 | else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters))) |
2645 | || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))) | |
d888760c GM |
2646 | val = Qnil; |
2647 | p->decode_coding_system = val; | |
2648 | ||
2649 | val = Qnil; | |
2650 | if (!NILP (tem)) | |
2651 | { | |
2652 | val = XCAR (XCDR (tem)); | |
2653 | if (CONSP (val)) | |
2654 | val = XCDR (val); | |
2655 | } | |
2656 | else if (!NILP (Vcoding_system_for_write)) | |
2657 | val = Vcoding_system_for_write; | |
4b4deea2 TT |
2658 | else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters))) |
2659 | || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))) | |
d888760c GM |
2660 | val = Qnil; |
2661 | p->encode_coding_system = val; | |
2662 | ||
2663 | setup_process_coding_systems (proc); | |
cbe81f1d | 2664 | p->decoding_buf = empty_unibyte_string; |
d888760c | 2665 | p->decoding_carryover = 0; |
cbe81f1d | 2666 | p->encoding_buf = empty_unibyte_string; |
d888760c GM |
2667 | p->inherit_coding_system_flag |
2668 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); | |
2669 | ||
ed3751c8 | 2670 | Fserial_process_configure (nargs, args); |
d888760c GM |
2671 | |
2672 | specpdl_ptr = specpdl + specpdl_count; | |
2673 | ||
2674 | UNGCPRO; | |
2675 | return proc; | |
2676 | } | |
d888760c | 2677 | |
e690ca94 KS |
2678 | /* Create a network stream/datagram client/server process. Treated |
2679 | exactly like a normal process when reading and writing. Primary | |
d0d6b7c5 JB |
2680 | differences are in status display and process deletion. A network |
2681 | connection has no PID; you cannot signal it. All you can do is | |
e690ca94 KS |
2682 | stop/continue it and deactivate/close it via delete-process */ |
2683 | ||
177c0ea7 JB |
2684 | DEFUN ("make-network-process", Fmake_network_process, Smake_network_process, |
2685 | 0, MANY, 0, | |
e690ca94 KS |
2686 | doc: /* Create and return a network server or client process. |
2687 | ||
fa9d4315 | 2688 | In Emacs, network connections are represented by process objects, so |
e690ca94 KS |
2689 | input and output work as for subprocesses and `delete-process' closes |
2690 | a network connection. However, a network process has no process id, | |
d22426e1 | 2691 | it cannot be signaled, and the status codes are different from normal |
e690ca94 KS |
2692 | processes. |
2693 | ||
2694 | Arguments are specified as keyword/argument pairs. The following | |
2695 | arguments are defined: | |
2696 | ||
2697 | :name NAME -- NAME is name for process. It is modified if necessary | |
2698 | to make it unique. | |
2699 | ||
2700 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
2701 | with the process. Process output goes at end of that buffer, unless | |
2702 | you specify an output stream or filter function to handle the output. | |
2703 | BUFFER may be also nil, meaning that this process is not associated | |
2704 | with any buffer. | |
2705 | ||
2706 | :host HOST -- HOST is name of the host to connect to, or its IP | |
2707 | address. The symbol `local' specifies the local host. If specified | |
2708 | for a server process, it must be a valid name or address for the local | |
2709 | host, and only clients connecting to that address will be accepted. | |
2710 | ||
2711 | :service SERVICE -- SERVICE is name of the service desired, or an | |
2712 | integer specifying a port number to connect to. If SERVICE is t, | |
eba25e7c GM |
2713 | a random port number is selected for the server. (If Emacs was |
2714 | compiled with getaddrinfo, a port number can also be specified as a | |
2715 | string, e.g. "80", as well as an integer. This is not portable.) | |
e690ca94 | 2716 | |
9057ff80 | 2717 | :type TYPE -- TYPE is the type of connection. The default (nil) is a |
f00c449b SM |
2718 | stream type connection, `datagram' creates a datagram type connection, |
2719 | `seqpacket' creates a reliable datagram connection. | |
9057ff80 | 2720 | |
e690ca94 | 2721 | :family FAMILY -- FAMILY is the address (and protocol) family for the |
e1652a86 KS |
2722 | service specified by HOST and SERVICE. The default (nil) is to use |
2723 | whatever address family (IPv4 or IPv6) that is defined for the host | |
2724 | and port number specified by HOST and SERVICE. Other address families | |
2725 | supported are: | |
e690ca94 | 2726 | local -- for a local (i.e. UNIX) address specified by SERVICE. |
e1652a86 KS |
2727 | ipv4 -- use IPv4 address family only. |
2728 | ipv6 -- use IPv6 address family only. | |
e690ca94 KS |
2729 | |
2730 | :local ADDRESS -- ADDRESS is the local address used for the connection. | |
2731 | This parameter is ignored when opening a client process. When specified | |
2732 | for a server process, the FAMILY, HOST and SERVICE args are ignored. | |
2733 | ||
2734 | :remote ADDRESS -- ADDRESS is the remote partner's address for the | |
2735 | connection. This parameter is ignored when opening a stream server | |
2736 | process. For a datagram server process, it specifies the initial | |
2737 | setting of the remote datagram address. When specified for a client | |
2738 | process, the FAMILY, HOST, and SERVICE args are ignored. | |
2739 | ||
2740 | The format of ADDRESS depends on the address family: | |
2741 | - An IPv4 address is represented as an vector of integers [A B C D P] | |
2742 | corresponding to numeric IP address A.B.C.D and port number P. | |
2743 | - A local address is represented as a string with the address in the | |
2744 | local address space. | |
2745 | - An "unsupported family" address is represented by a cons (F . AV) | |
2746 | where F is the family number and AV is a vector containing the socket | |
2747 | address data with one element per address data byte. Do not rely on | |
2748 | this format in portable code, as it may depend on implementation | |
2749 | defined constants, data sizes, and data structure alignment. | |
2750 | ||
6b61353c KH |
2751 | :coding CODING -- If CODING is a symbol, it specifies the coding |
2752 | system used for both reading and writing for this process. If CODING | |
2753 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
2754 | ENCODING is used for writing. | |
e690ca94 KS |
2755 | |
2756 | :nowait BOOL -- If BOOL is non-nil for a stream type client process, | |
2757 | return without waiting for the connection to complete; instead, the | |
2758 | sentinel function will be called with second arg matching "open" (if | |
2759 | successful) or "failed" when the connect completes. Default is to use | |
2760 | a blocking connect (i.e. wait) for stream type connections. | |
2761 | ||
2762 | :noquery BOOL -- Query the user unless BOOL is non-nil, and process is | |
f3d9532b | 2763 | running when Emacs is exited. |
e690ca94 KS |
2764 | |
2765 | :stop BOOL -- Start process in the `stopped' state if BOOL non-nil. | |
2766 | In the stopped state, a server process does not accept new | |
2767 | connections, and a client process does not handle incoming traffic. | |
2768 | The stopped state is cleared by `continue-process' and set by | |
2769 | `stop-process'. | |
2770 | ||
2771 | :filter FILTER -- Install FILTER as the process filter. | |
2772 | ||
7392e23c KS |
2773 | :filter-multibyte BOOL -- If BOOL is non-nil, strings given to the |
2774 | process filter are multibyte, otherwise they are unibyte. | |
e0f24100 | 2775 | If this keyword is not specified, the strings are multibyte if |
03f04413 KH |
2776 | `default-enable-multibyte-characters' is non-nil. |
2777 | ||
e690ca94 KS |
2778 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. |
2779 | ||
2780 | :log LOG -- Install LOG as the server process log function. This | |
991234f0 | 2781 | function is called when the server accepts a network connection from a |
e690ca94 KS |
2782 | client. The arguments are SERVER, CLIENT, and MESSAGE, where SERVER |
2783 | is the server process, CLIENT is the new process for the connection, | |
2784 | and MESSAGE is a string. | |
2785 | ||
faa7db08 | 2786 | :plist PLIST -- Install PLIST as the new process' initial plist. |
177c0ea7 | 2787 | |
6b61353c | 2788 | :server QLEN -- if QLEN is non-nil, create a server process for the |
e690ca94 | 2789 | specified FAMILY, SERVICE, and connection type (stream or datagram). |
6b61353c KH |
2790 | If QLEN is an integer, it is used as the max. length of the server's |
2791 | pending connection queue (also known as the backlog); the default | |
2792 | queue length is 5. Default is to create a client process. | |
2793 | ||
2794 | The following network options can be specified for this connection: | |
2795 | ||
2796 | :broadcast BOOL -- Allow send and receive of datagram broadcasts. | |
2797 | :dontroute BOOL -- Only send to directly connected hosts. | |
2798 | :keepalive BOOL -- Send keep-alive messages on network stream. | |
2799 | :linger BOOL or TIMEOUT -- Send queued messages before closing. | |
2800 | :oobinline BOOL -- Place out-of-band data in receive data stream. | |
2801 | :priority INT -- Set protocol defined priority for sent packets. | |
2802 | :reuseaddr BOOL -- Allow reusing a recently used local address | |
2803 | (this is allowed by default for a server process). | |
2804 | :bindtodevice NAME -- bind to interface NAME. Using this may require | |
2805 | special privileges on some systems. | |
2806 | ||
2807 | Consult the relevant system programmer's manual pages for more | |
2808 | information on using these options. | |
2809 | ||
2810 | ||
2811 | A server process will listen for and accept connections from clients. | |
2812 | When a client connection is accepted, a new network process is created | |
2813 | for the connection with the following parameters: | |
e690ca94 | 2814 | |
e690ca94 KS |
2815 | - The client's process name is constructed by concatenating the server |
2816 | process' NAME and a client identification string. | |
2817 | - If the FILTER argument is non-nil, the client process will not get a | |
2818 | separate process buffer; otherwise, the client's process buffer is a newly | |
2819 | created buffer named after the server process' BUFFER name or process | |
177c0ea7 | 2820 | NAME concatenated with the client identification string. |
e690ca94 KS |
2821 | - The connection type and the process filter and sentinel parameters are |
2822 | inherited from the server process' TYPE, FILTER and SENTINEL. | |
2823 | - The client process' contact info is set according to the client's | |
2824 | addressing information (typically an IP address and a port number). | |
faa7db08 | 2825 | - The client process' plist is initialized from the server's plist. |
e690ca94 KS |
2826 | |
2827 | Notice that the FILTER and SENTINEL args are never used directly by | |
2828 | the server process. Also, the BUFFER argument is not used directly by | |
9e9a5792 KS |
2829 | the server process, but via the optional :log function, accepted (and |
2830 | failed) connections may be logged in the server process' buffer. | |
e690ca94 | 2831 | |
365aee82 KS |
2832 | The original argument list, modified with the actual connection |
2833 | information, is available via the `process-contact' function. | |
365aee82 | 2834 | |
fa9d4315 | 2835 | usage: (make-network-process &rest ARGS) */) |
f66c7cf8 | 2836 | (ptrdiff_t nargs, Lisp_Object *args) |
d0d6b7c5 JB |
2837 | { |
2838 | Lisp_Object proc; | |
e690ca94 KS |
2839 | Lisp_Object contact; |
2840 | struct Lisp_Process *p; | |
70dbdb36 | 2841 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 2842 | struct addrinfo ai, *res, *lres; |
e1652a86 | 2843 | struct addrinfo hints; |
8ea90aa3 DN |
2844 | const char *portstring; |
2845 | char portbuf[128]; | |
70dbdb36 | 2846 | #else /* HAVE_GETADDRINFO */ |
dd2a17ab KS |
2847 | struct _emacs_addrinfo |
2848 | { | |
2849 | int ai_family; | |
2850 | int ai_socktype; | |
2851 | int ai_protocol; | |
2852 | int ai_addrlen; | |
2853 | struct sockaddr *ai_addr; | |
2854 | struct _emacs_addrinfo *ai_next; | |
2855 | } ai, *res, *lres; | |
418b48fd | 2856 | #endif /* HAVE_GETADDRINFO */ |
e690ca94 KS |
2857 | struct sockaddr_in address_in; |
2858 | #ifdef HAVE_LOCAL_SOCKETS | |
2859 | struct sockaddr_un address_un; | |
2860 | #endif | |
2861 | int port; | |
dd2a17ab KS |
2862 | int ret = 0; |
2863 | int xerrno = 0; | |
418b48fd | 2864 | int s = -1, outch, inch; |
e690ca94 | 2865 | struct gcpro gcpro1; |
aed13378 | 2866 | int count = SPECPDL_INDEX (); |
5684cd6e | 2867 | int count1; |
e690ca94 KS |
2868 | Lisp_Object QCaddress; /* one of QClocal or QCremote */ |
2869 | Lisp_Object tem; | |
2870 | Lisp_Object name, buffer, host, service, address; | |
2871 | Lisp_Object filter, sentinel; | |
2872 | int is_non_blocking_client = 0; | |
6b61353c | 2873 | int is_server = 0, backlog = 5; |
9057ff80 | 2874 | int socktype; |
e690ca94 KS |
2875 | int family = -1; |
2876 | ||
2877 | if (nargs == 0) | |
2878 | return Qnil; | |
dd2a17ab | 2879 | |
e690ca94 KS |
2880 | /* Save arguments for process-contact and clone-process. */ |
2881 | contact = Flist (nargs, args); | |
2882 | GCPRO1 (contact); | |
2883 | ||
bff3ed0a RS |
2884 | #ifdef WINDOWSNT |
2885 | /* Ensure socket support is loaded if available. */ | |
2886 | init_winsock (TRUE); | |
2887 | #endif | |
2888 | ||
9057ff80 KS |
2889 | /* :type TYPE (nil: stream, datagram */ |
2890 | tem = Fplist_get (contact, QCtype); | |
2891 | if (NILP (tem)) | |
2892 | socktype = SOCK_STREAM; | |
2893 | #ifdef DATAGRAM_SOCKETS | |
2894 | else if (EQ (tem, Qdatagram)) | |
2895 | socktype = SOCK_DGRAM; | |
f00c449b SM |
2896 | #endif |
2897 | #ifdef HAVE_SEQPACKET | |
2898 | else if (EQ (tem, Qseqpacket)) | |
2899 | socktype = SOCK_SEQPACKET; | |
e690ca94 | 2900 | #endif |
9057ff80 KS |
2901 | else |
2902 | error ("Unsupported connection type"); | |
e690ca94 KS |
2903 | |
2904 | /* :server BOOL */ | |
2905 | tem = Fplist_get (contact, QCserver); | |
2906 | if (!NILP (tem)) | |
2907 | { | |
75728599 JR |
2908 | /* Don't support network sockets when non-blocking mode is |
2909 | not available, since a blocked Emacs is not useful. */ | |
132d0475 | 2910 | #if !defined(O_NONBLOCK) && !defined(O_NDELAY) |
e690ca94 KS |
2911 | error ("Network servers not supported"); |
2912 | #else | |
2913 | is_server = 1; | |
6b61353c KH |
2914 | if (INTEGERP (tem)) |
2915 | backlog = XINT (tem); | |
e690ca94 KS |
2916 | #endif |
2917 | } | |
2918 | ||
2919 | /* Make QCaddress an alias for :local (server) or :remote (client). */ | |
2920 | QCaddress = is_server ? QClocal : QCremote; | |
2921 | ||
d7e344cd | 2922 | /* :nowait BOOL */ |
84b31826 | 2923 | if (!is_server && socktype != SOCK_DGRAM |
e690ca94 KS |
2924 | && (tem = Fplist_get (contact, QCnowait), !NILP (tem))) |
2925 | { | |
2926 | #ifndef NON_BLOCKING_CONNECT | |
2927 | error ("Non-blocking connect not supported"); | |
2928 | #else | |
2929 | is_non_blocking_client = 1; | |
2930 | #endif | |
2931 | } | |
2932 | ||
2933 | name = Fplist_get (contact, QCname); | |
2934 | buffer = Fplist_get (contact, QCbuffer); | |
2935 | filter = Fplist_get (contact, QCfilter); | |
2936 | sentinel = Fplist_get (contact, QCsentinel); | |
2937 | ||
b7826503 | 2938 | CHECK_STRING (name); |
e690ca94 | 2939 | |
e690ca94 KS |
2940 | /* Initialize addrinfo structure in case we don't use getaddrinfo. */ |
2941 | ai.ai_socktype = socktype; | |
2942 | ai.ai_protocol = 0; | |
2943 | ai.ai_next = NULL; | |
2944 | res = &ai; | |
a319f7c1 | 2945 | |
e690ca94 KS |
2946 | /* :local ADDRESS or :remote ADDRESS */ |
2947 | address = Fplist_get (contact, QCaddress); | |
2948 | if (!NILP (address)) | |
a319f7c1 | 2949 | { |
e690ca94 KS |
2950 | host = service = Qnil; |
2951 | ||
2952 | if (!(ai.ai_addrlen = get_lisp_to_sockaddr_size (address, &family))) | |
2953 | error ("Malformed :address"); | |
2954 | ai.ai_family = family; | |
2955 | ai.ai_addr = alloca (ai.ai_addrlen); | |
2956 | conv_lisp_to_sockaddr (family, address, ai.ai_addr, ai.ai_addrlen); | |
2957 | goto open_socket; | |
a319f7c1 | 2958 | } |
e690ca94 KS |
2959 | |
2960 | /* :family FAMILY -- nil (for Inet), local, or integer. */ | |
2961 | tem = Fplist_get (contact, QCfamily); | |
e1652a86 | 2962 | if (NILP (tem)) |
a319f7c1 | 2963 | { |
87b6ca8d | 2964 | #if defined(HAVE_GETADDRINFO) && defined(AF_INET6) |
e1652a86 KS |
2965 | family = AF_UNSPEC; |
2966 | #else | |
2967 | family = AF_INET; | |
e690ca94 | 2968 | #endif |
a319f7c1 | 2969 | } |
e1652a86 KS |
2970 | #ifdef HAVE_LOCAL_SOCKETS |
2971 | else if (EQ (tem, Qlocal)) | |
2972 | family = AF_LOCAL; | |
2973 | #endif | |
2974 | #ifdef AF_INET6 | |
2975 | else if (EQ (tem, Qipv6)) | |
2976 | family = AF_INET6; | |
2977 | #endif | |
2978 | else if (EQ (tem, Qipv4)) | |
2979 | family = AF_INET; | |
2980 | else if (INTEGERP (tem)) | |
2981 | family = XINT (tem); | |
2982 | else | |
e690ca94 | 2983 | error ("Unknown address family"); |
e1652a86 | 2984 | |
e690ca94 KS |
2985 | ai.ai_family = family; |
2986 | ||
2987 | /* :service SERVICE -- string, integer (port number), or t (random port). */ | |
2988 | service = Fplist_get (contact, QCservice); | |
2989 | ||
66a9f7f4 SM |
2990 | /* :host HOST -- hostname, ip address, or 'local for localhost. */ |
2991 | host = Fplist_get (contact, QChost); | |
2992 | if (!NILP (host)) | |
2993 | { | |
2994 | if (EQ (host, Qlocal)) | |
ba3033ee JB |
2995 | /* Depending on setup, "localhost" may map to different IPv4 and/or |
2996 | IPv6 addresses, so it's better to be explicit. (Bug#6781) */ | |
2997 | host = build_string ("127.0.0.1"); | |
66a9f7f4 SM |
2998 | CHECK_STRING (host); |
2999 | } | |
3000 | ||
e690ca94 KS |
3001 | #ifdef HAVE_LOCAL_SOCKETS |
3002 | if (family == AF_LOCAL) | |
d0d6b7c5 | 3003 | { |
66a9f7f4 SM |
3004 | if (!NILP (host)) |
3005 | { | |
3006 | message (":family local ignores the :host \"%s\" property", | |
3007 | SDATA (host)); | |
3008 | contact = Fplist_put (contact, QChost, Qnil); | |
3009 | host = Qnil; | |
3010 | } | |
b7826503 | 3011 | CHECK_STRING (service); |
72af86bd | 3012 | memset (&address_un, 0, sizeof address_un); |
e690ca94 | 3013 | address_un.sun_family = AF_LOCAL; |
42a5b22f | 3014 | strncpy (address_un.sun_path, SSDATA (service), sizeof address_un.sun_path); |
e690ca94 KS |
3015 | ai.ai_addr = (struct sockaddr *) &address_un; |
3016 | ai.ai_addrlen = sizeof address_un; | |
3017 | goto open_socket; | |
d0d6b7c5 | 3018 | } |
e690ca94 | 3019 | #endif |
a319f7c1 | 3020 | |
798b64bb KH |
3021 | /* Slow down polling to every ten seconds. |
3022 | Some kernels have a bug which causes retrying connect to fail | |
3023 | after a connect. Polling can interfere with gethostbyname too. */ | |
3024 | #ifdef POLL_FOR_INPUT | |
84b31826 | 3025 | if (socktype != SOCK_DGRAM) |
e690ca94 KS |
3026 | { |
3027 | record_unwind_protect (unwind_stop_other_atimers, Qnil); | |
3028 | bind_polling_period (10); | |
3029 | } | |
798b64bb KH |
3030 | #endif |
3031 | ||
a319f7c1 | 3032 | #ifdef HAVE_GETADDRINFO |
e690ca94 KS |
3033 | /* If we have a host, use getaddrinfo to resolve both host and service. |
3034 | Otherwise, use getservbyname to lookup the service. */ | |
3035 | if (!NILP (host)) | |
3036 | { | |
3037 | ||
3038 | /* SERVICE can either be a string or int. | |
3039 | Convert to a C string for later use by getaddrinfo. */ | |
3040 | if (EQ (service, Qt)) | |
3041 | portstring = "0"; | |
3042 | else if (INTEGERP (service)) | |
3043 | { | |
c2982e87 | 3044 | sprintf (portbuf, "%"pI"d", XINT (service)); |
e690ca94 KS |
3045 | portstring = portbuf; |
3046 | } | |
3047 | else | |
3048 | { | |
3049 | CHECK_STRING (service); | |
42a5b22f | 3050 | portstring = SSDATA (service); |
e690ca94 KS |
3051 | } |
3052 | ||
3053 | immediate_quit = 1; | |
3054 | QUIT; | |
3055 | memset (&hints, 0, sizeof (hints)); | |
3056 | hints.ai_flags = 0; | |
e1652a86 | 3057 | hints.ai_family = family; |
e690ca94 KS |
3058 | hints.ai_socktype = socktype; |
3059 | hints.ai_protocol = 0; | |
08116b48 CY |
3060 | |
3061 | #ifdef HAVE_RES_INIT | |
3062 | res_init (); | |
3063 | #endif | |
3064 | ||
42a5b22f | 3065 | ret = getaddrinfo (SSDATA (host), portstring, &hints, &res); |
e690ca94 | 3066 | if (ret) |
f6270f62 | 3067 | #ifdef HAVE_GAI_STRERROR |
42a5b22f | 3068 | error ("%s/%s %s", SSDATA (host), portstring, gai_strerror (ret)); |
f6270f62 | 3069 | #else |
42a5b22f | 3070 | error ("%s/%s getaddrinfo error %d", SSDATA (host), portstring, ret); |
f6270f62 | 3071 | #endif |
e690ca94 | 3072 | immediate_quit = 0; |
a319f7c1 | 3073 | |
e690ca94 KS |
3074 | goto open_socket; |
3075 | } | |
3076 | #endif /* HAVE_GETADDRINFO */ | |
a319f7c1 | 3077 | |
e690ca94 KS |
3078 | /* We end up here if getaddrinfo is not defined, or in case no hostname |
3079 | has been specified (e.g. for a local server process). */ | |
3080 | ||
3081 | if (EQ (service, Qt)) | |
3082 | port = 0; | |
3083 | else if (INTEGERP (service)) | |
3084 | port = htons ((unsigned short) XINT (service)); | |
3085 | else | |
616da37c | 3086 | { |
e690ca94 KS |
3087 | struct servent *svc_info; |
3088 | CHECK_STRING (service); | |
42a5b22f | 3089 | svc_info = getservbyname (SSDATA (service), |
e690ca94 KS |
3090 | (socktype == SOCK_DGRAM ? "udp" : "tcp")); |
3091 | if (svc_info == 0) | |
d5db4077 | 3092 | error ("Unknown service: %s", SDATA (service)); |
e690ca94 KS |
3093 | port = svc_info->s_port; |
3094 | } | |
3095 | ||
72af86bd | 3096 | memset (&address_in, 0, sizeof address_in); |
e690ca94 KS |
3097 | address_in.sin_family = family; |
3098 | address_in.sin_addr.s_addr = INADDR_ANY; | |
3099 | address_in.sin_port = port; | |
3100 | ||
3101 | #ifndef HAVE_GETADDRINFO | |
3102 | if (!NILP (host)) | |
3103 | { | |
3104 | struct hostent *host_info_ptr; | |
3105 | ||
3106 | /* gethostbyname may fail with TRY_AGAIN, but we don't honour that, | |
f3d9532b | 3107 | as it may `hang' Emacs for a very long time. */ |
5d6c2aa3 RS |
3108 | immediate_quit = 1; |
3109 | QUIT; | |
08116b48 CY |
3110 | |
3111 | #ifdef HAVE_RES_INIT | |
3112 | res_init (); | |
3113 | #endif | |
3114 | ||
d5db4077 | 3115 | host_info_ptr = gethostbyname (SDATA (host)); |
5d6c2aa3 | 3116 | immediate_quit = 0; |
177c0ea7 | 3117 | |
e690ca94 KS |
3118 | if (host_info_ptr) |
3119 | { | |
72af86bd AS |
3120 | memcpy (&address_in.sin_addr, host_info_ptr->h_addr, |
3121 | host_info_ptr->h_length); | |
e690ca94 KS |
3122 | family = host_info_ptr->h_addrtype; |
3123 | address_in.sin_family = family; | |
3124 | } | |
3125 | else | |
3126 | /* Attempt to interpret host as numeric inet address */ | |
3127 | { | |
4624371d | 3128 | unsigned long numeric_addr; |
51b59d79 | 3129 | numeric_addr = inet_addr (SSDATA (host)); |
4624371d | 3130 | if (numeric_addr == -1) |
d5db4077 | 3131 | error ("Unknown host \"%s\"", SDATA (host)); |
d0d6b7c5 | 3132 | |
72af86bd AS |
3133 | memcpy (&address_in.sin_addr, &numeric_addr, |
3134 | sizeof (address_in.sin_addr)); | |
e690ca94 | 3135 | } |
d0d6b7c5 | 3136 | |
e690ca94 | 3137 | } |
dd2a17ab | 3138 | #endif /* not HAVE_GETADDRINFO */ |
d0d6b7c5 | 3139 | |
e690ca94 KS |
3140 | ai.ai_family = family; |
3141 | ai.ai_addr = (struct sockaddr *) &address_in; | |
3142 | ai.ai_addrlen = sizeof address_in; | |
3143 | ||
3144 | open_socket: | |
3145 | ||
dd2a17ab | 3146 | /* Do this in case we never enter the for-loop below. */ |
aed13378 | 3147 | count1 = SPECPDL_INDEX (); |
dd2a17ab | 3148 | s = -1; |
457a9bee | 3149 | |
dd2a17ab KS |
3150 | for (lres = res; lres; lres = lres->ai_next) |
3151 | { | |
f66c7cf8 | 3152 | ptrdiff_t optn; |
c5101a77 | 3153 | int optbits; |
6b61353c | 3154 | |
4dc343ee | 3155 | #ifdef WINDOWSNT |
649dbf36 | 3156 | retry_connect: |
4dc343ee | 3157 | #endif |
649dbf36 | 3158 | |
dd2a17ab KS |
3159 | s = socket (lres->ai_family, lres->ai_socktype, lres->ai_protocol); |
3160 | if (s < 0) | |
3161 | { | |
3162 | xerrno = errno; | |
3163 | continue; | |
3164 | } | |
0f2ee0c1 | 3165 | |
e690ca94 KS |
3166 | #ifdef DATAGRAM_SOCKETS |
3167 | if (!is_server && socktype == SOCK_DGRAM) | |
3168 | break; | |
3169 | #endif /* DATAGRAM_SOCKETS */ | |
3170 | ||
dd2a17ab | 3171 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3172 | if (is_non_blocking_client) |
dd2a17ab KS |
3173 | { |
3174 | #ifdef O_NONBLOCK | |
3175 | ret = fcntl (s, F_SETFL, O_NONBLOCK); | |
3176 | #else | |
3177 | ret = fcntl (s, F_SETFL, O_NDELAY); | |
3178 | #endif | |
3179 | if (ret < 0) | |
3180 | { | |
3181 | xerrno = errno; | |
3182 | emacs_close (s); | |
3183 | s = -1; | |
3184 | continue; | |
3185 | } | |
3186 | } | |
3187 | #endif | |
177c0ea7 | 3188 | |
dd2a17ab | 3189 | /* Make us close S if quit. */ |
dd2a17ab KS |
3190 | record_unwind_protect (close_file_unwind, make_number (s)); |
3191 | ||
6b61353c KH |
3192 | /* Parse network options in the arg list. |
3193 | We simply ignore anything which isn't a known option (including other keywords). | |
63136da6 | 3194 | An error is signaled if setting a known option fails. */ |
6b61353c KH |
3195 | for (optn = optbits = 0; optn < nargs-1; optn += 2) |
3196 | optbits |= set_socket_option (s, args[optn], args[optn+1]); | |
3197 | ||
e690ca94 KS |
3198 | if (is_server) |
3199 | { | |
3200 | /* Configure as a server socket. */ | |
6b61353c KH |
3201 | |
3202 | /* SO_REUSEADDR = 1 is default for server sockets; must specify | |
3203 | explicit :reuseaddr key to override this. */ | |
e690ca94 KS |
3204 | #ifdef HAVE_LOCAL_SOCKETS |
3205 | if (family != AF_LOCAL) | |
3206 | #endif | |
6b61353c KH |
3207 | if (!(optbits & (1 << OPIX_REUSEADDR))) |
3208 | { | |
3209 | int optval = 1; | |
3210 | if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval)) | |
3211 | report_file_error ("Cannot set reuse option on server socket", Qnil); | |
3212 | } | |
177c0ea7 | 3213 | |
e690ca94 KS |
3214 | if (bind (s, lres->ai_addr, lres->ai_addrlen)) |
3215 | report_file_error ("Cannot bind server socket", Qnil); | |
3216 | ||
3217 | #ifdef HAVE_GETSOCKNAME | |
3218 | if (EQ (service, Qt)) | |
3219 | { | |
3220 | struct sockaddr_in sa1; | |
401bf9b4 | 3221 | socklen_t len1 = sizeof (sa1); |
e690ca94 KS |
3222 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) |
3223 | { | |
3224 | ((struct sockaddr_in *)(lres->ai_addr))->sin_port = sa1.sin_port; | |
21bd170d | 3225 | service = make_number (ntohs (sa1.sin_port)); |
e690ca94 KS |
3226 | contact = Fplist_put (contact, QCservice, service); |
3227 | } | |
3228 | } | |
3229 | #endif | |
3230 | ||
84b31826 | 3231 | if (socktype != SOCK_DGRAM && listen (s, backlog)) |
e690ca94 KS |
3232 | report_file_error ("Cannot listen on server socket", Qnil); |
3233 | ||
3234 | break; | |
3235 | } | |
3236 | ||
dd2a17ab KS |
3237 | immediate_quit = 1; |
3238 | QUIT; | |
3239 | ||
dd2a17ab KS |
3240 | ret = connect (s, lres->ai_addr, lres->ai_addrlen); |
3241 | xerrno = errno; | |
3242 | ||
dd2a17ab KS |
3243 | if (ret == 0 || xerrno == EISCONN) |
3244 | { | |
dd2a17ab KS |
3245 | /* The unwind-protect will be discarded afterwards. |
3246 | Likewise for immediate_quit. */ | |
3247 | break; | |
3248 | } | |
3249 | ||
3250 | #ifdef NON_BLOCKING_CONNECT | |
3251 | #ifdef EINPROGRESS | |
e690ca94 | 3252 | if (is_non_blocking_client && xerrno == EINPROGRESS) |
dd2a17ab KS |
3253 | break; |
3254 | #else | |
3255 | #ifdef EWOULDBLOCK | |
e690ca94 | 3256 | if (is_non_blocking_client && xerrno == EWOULDBLOCK) |
dd2a17ab KS |
3257 | break; |
3258 | #endif | |
3259 | #endif | |
3260 | #endif | |
649dbf36 CY |
3261 | |
3262 | #ifndef WINDOWSNT | |
cd591dbc HE |
3263 | if (xerrno == EINTR) |
3264 | { | |
3265 | /* Unlike most other syscalls connect() cannot be called | |
3266 | again. (That would return EALREADY.) The proper way to | |
3267 | wait for completion is select(). */ | |
401bf9b4 PE |
3268 | int sc; |
3269 | socklen_t len; | |
cd591dbc HE |
3270 | SELECT_TYPE fdset; |
3271 | retry_select: | |
3272 | FD_ZERO (&fdset); | |
3273 | FD_SET (s, &fdset); | |
3274 | QUIT; | |
3275 | sc = select (s + 1, (SELECT_TYPE *)0, &fdset, (SELECT_TYPE *)0, | |
3276 | (EMACS_TIME *)0); | |
3277 | if (sc == -1) | |
3278 | { | |
649dbf36 | 3279 | if (errno == EINTR) |
cd591dbc | 3280 | goto retry_select; |
649dbf36 | 3281 | else |
cd591dbc HE |
3282 | report_file_error ("select failed", Qnil); |
3283 | } | |
3284 | eassert (sc > 0); | |
649dbf36 CY |
3285 | |
3286 | len = sizeof xerrno; | |
3287 | eassert (FD_ISSET (s, &fdset)); | |
3288 | if (getsockopt (s, SOL_SOCKET, SO_ERROR, &xerrno, &len) == -1) | |
3289 | report_file_error ("getsockopt failed", Qnil); | |
3290 | if (xerrno) | |
3291 | errno = xerrno, report_file_error ("error during connect", Qnil); | |
3292 | else | |
3293 | break; | |
cd591dbc | 3294 | } |
649dbf36 | 3295 | #endif /* !WINDOWSNT */ |
e333e864 | 3296 | |
0f2ee0c1 RS |
3297 | immediate_quit = 0; |
3298 | ||
dd2a17ab | 3299 | /* Discard the unwind protect closing S. */ |
5684cd6e | 3300 | specpdl_ptr = specpdl + count1; |
68c45bf0 | 3301 | emacs_close (s); |
dd2a17ab | 3302 | s = -1; |
649dbf36 CY |
3303 | |
3304 | #ifdef WINDOWSNT | |
3305 | if (xerrno == EINTR) | |
3306 | goto retry_connect; | |
3307 | #endif | |
dd2a17ab | 3308 | } |
457a9bee | 3309 | |
e690ca94 KS |
3310 | if (s >= 0) |
3311 | { | |
3312 | #ifdef DATAGRAM_SOCKETS | |
3313 | if (socktype == SOCK_DGRAM) | |
3314 | { | |
3315 | if (datagram_address[s].sa) | |
3316 | abort (); | |
3317 | datagram_address[s].sa = (struct sockaddr *) xmalloc (lres->ai_addrlen); | |
3318 | datagram_address[s].len = lres->ai_addrlen; | |
3319 | if (is_server) | |
3320 | { | |
3321 | Lisp_Object remote; | |
72af86bd | 3322 | memset (datagram_address[s].sa, 0, lres->ai_addrlen); |
e690ca94 KS |
3323 | if (remote = Fplist_get (contact, QCremote), !NILP (remote)) |
3324 | { | |
3325 | int rfamily, rlen; | |
3326 | rlen = get_lisp_to_sockaddr_size (remote, &rfamily); | |
3327 | if (rfamily == lres->ai_family && rlen == lres->ai_addrlen) | |
3328 | conv_lisp_to_sockaddr (rfamily, remote, | |
3329 | datagram_address[s].sa, rlen); | |
3330 | } | |
3331 | } | |
3332 | else | |
72af86bd | 3333 | memcpy (datagram_address[s].sa, lres->ai_addr, lres->ai_addrlen); |
e690ca94 KS |
3334 | } |
3335 | #endif | |
177c0ea7 | 3336 | contact = Fplist_put (contact, QCaddress, |
e690ca94 | 3337 | conv_sockaddr_to_lisp (lres->ai_addr, lres->ai_addrlen)); |
2185db04 KS |
3338 | #ifdef HAVE_GETSOCKNAME |
3339 | if (!is_server) | |
3340 | { | |
3341 | struct sockaddr_in sa1; | |
401bf9b4 | 3342 | socklen_t len1 = sizeof (sa1); |
2185db04 KS |
3343 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) |
3344 | contact = Fplist_put (contact, QClocal, | |
d3da34e0 | 3345 | conv_sockaddr_to_lisp ((struct sockaddr *)&sa1, len1)); |
2185db04 KS |
3346 | } |
3347 | #endif | |
e690ca94 KS |
3348 | } |
3349 | ||
54b3b62f YM |
3350 | immediate_quit = 0; |
3351 | ||
dd2a17ab | 3352 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 3353 | if (res != &ai) |
54b3b62f YM |
3354 | { |
3355 | BLOCK_INPUT; | |
3356 | freeaddrinfo (res); | |
3357 | UNBLOCK_INPUT; | |
3358 | } | |
dd2a17ab KS |
3359 | #endif |
3360 | ||
e690ca94 KS |
3361 | /* Discard the unwind protect for closing S, if any. */ |
3362 | specpdl_ptr = specpdl + count1; | |
3363 | ||
3364 | /* Unwind bind_polling_period and request_sigio. */ | |
3365 | unbind_to (count, Qnil); | |
3366 | ||
dd2a17ab KS |
3367 | if (s < 0) |
3368 | { | |
dd2a17ab KS |
3369 | /* If non-blocking got this far - and failed - assume non-blocking is |
3370 | not supported after all. This is probably a wrong assumption, but | |
e690ca94 KS |
3371 | the normal blocking calls to open-network-stream handles this error |
3372 | better. */ | |
3373 | if (is_non_blocking_client) | |
dd2a17ab | 3374 | return Qnil; |
dd2a17ab | 3375 | |
d0d6b7c5 | 3376 | errno = xerrno; |
e690ca94 KS |
3377 | if (is_server) |
3378 | report_file_error ("make server process failed", contact); | |
3379 | else | |
3380 | report_file_error ("make client process failed", contact); | |
d0d6b7c5 | 3381 | } |
44ade2e9 | 3382 | |
d0d6b7c5 | 3383 | inch = s; |
59f23005 | 3384 | outch = s; |
d0d6b7c5 JB |
3385 | |
3386 | if (!NILP (buffer)) | |
3387 | buffer = Fget_buffer_create (buffer); | |
3388 | proc = make_process (name); | |
3389 | ||
3390 | chan_process[inch] = proc; | |
3391 | ||
3392 | #ifdef O_NONBLOCK | |
3393 | fcntl (inch, F_SETFL, O_NONBLOCK); | |
3394 | #else | |
3395 | #ifdef O_NDELAY | |
3396 | fcntl (inch, F_SETFL, O_NDELAY); | |
3397 | #endif | |
3398 | #endif | |
3399 | ||
e690ca94 KS |
3400 | p = XPROCESS (proc); |
3401 | ||
3402 | p->childp = contact; | |
faa7db08 | 3403 | p->plist = Fcopy_sequence (Fplist_get (contact, QCplist)); |
d888760c | 3404 | p->type = Qnetwork; |
177c0ea7 | 3405 | |
e690ca94 KS |
3406 | p->buffer = buffer; |
3407 | p->sentinel = sentinel; | |
3408 | p->filter = filter; | |
3409 | p->log = Fplist_get (contact, QClog); | |
3410 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) | |
60f0fb11 | 3411 | p->kill_without_query = 1; |
e690ca94 KS |
3412 | if ((tem = Fplist_get (contact, QCstop), !NILP (tem))) |
3413 | p->command = Qt; | |
6bfd98e7 | 3414 | p->pid = 0; |
60f0fb11 SM |
3415 | p->infd = inch; |
3416 | p->outfd = outch; | |
84b31826 | 3417 | if (is_server && socktype != SOCK_DGRAM) |
e690ca94 | 3418 | p->status = Qlisten; |
dd2a17ab | 3419 | |
f523e0c3 SM |
3420 | /* Make the process marker point into the process buffer (if any). */ |
3421 | if (BUFFERP (buffer)) | |
3422 | set_marker_both (p->mark, buffer, | |
3423 | BUF_ZV (XBUFFER (buffer)), | |
3424 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
3425 | ||
dd2a17ab | 3426 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3427 | if (is_non_blocking_client) |
dd2a17ab KS |
3428 | { |
3429 | /* We may get here if connect did succeed immediately. However, | |
3430 | in that case, we still need to signal this like a non-blocking | |
3431 | connection. */ | |
e690ca94 | 3432 | p->status = Qconnect; |
dd2a17ab KS |
3433 | if (!FD_ISSET (inch, &connect_wait_mask)) |
3434 | { | |
3435 | FD_SET (inch, &connect_wait_mask); | |
3fad2ad2 | 3436 | FD_SET (inch, &write_mask); |
dd2a17ab KS |
3437 | num_pending_connects++; |
3438 | } | |
3439 | } | |
3440 | else | |
3441 | #endif | |
e690ca94 KS |
3442 | /* A server may have a client filter setting of Qt, but it must |
3443 | still listen for incoming connects unless it is stopped. */ | |
3444 | if ((!EQ (p->filter, Qt) && !EQ (p->command, Qt)) | |
3445 | || (EQ (p->status, Qlisten) && NILP (p->command))) | |
dd2a17ab KS |
3446 | { |
3447 | FD_SET (inch, &input_wait_mask); | |
3448 | FD_SET (inch, &non_keyboard_wait_mask); | |
3449 | } | |
3450 | ||
7d0e672e RS |
3451 | if (inch > max_process_desc) |
3452 | max_process_desc = inch; | |
d0d6b7c5 | 3453 | |
e690ca94 KS |
3454 | tem = Fplist_member (contact, QCcoding); |
3455 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
3456 | tem = Qnil; /* No error message (too late!). */ | |
3457 | ||
67918941 RS |
3458 | { |
3459 | /* Setup coding systems for communicating with the network stream. */ | |
b93aacde | 3460 | struct gcpro inner_gcpro1; |
67918941 RS |
3461 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ |
3462 | Lisp_Object coding_systems = Qt; | |
b93aacde | 3463 | Lisp_Object fargs[5], val; |
67918941 | 3464 | |
e690ca94 | 3465 | if (!NILP (tem)) |
6b61353c KH |
3466 | { |
3467 | val = XCAR (XCDR (tem)); | |
3468 | if (CONSP (val)) | |
3469 | val = XCAR (val); | |
3470 | } | |
e690ca94 | 3471 | else if (!NILP (Vcoding_system_for_read)) |
67918941 | 3472 | val = Vcoding_system_for_read; |
4b4deea2 TT |
3473 | else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters))) |
3474 | || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))) | |
67918941 RS |
3475 | /* We dare not decode end-of-line format by setting VAL to |
3476 | Qraw_text, because the existing Emacs Lisp libraries | |
3477 | assume that they receive bare code including a sequene of | |
3478 | CR LF. */ | |
3479 | val = Qnil; | |
3480 | else | |
3481 | { | |
991234f0 KS |
3482 | if (NILP (host) || NILP (service)) |
3483 | coding_systems = Qnil; | |
3484 | else | |
3485 | { | |
b93aacde PE |
3486 | fargs[0] = Qopen_network_stream, fargs[1] = name, |
3487 | fargs[2] = buffer, fargs[3] = host, fargs[4] = service; | |
3488 | GCPRO1_VAR (proc, inner_gcpro); | |
3489 | coding_systems = Ffind_operation_coding_system (5, fargs); | |
3490 | UNGCPRO_VAR (inner_gcpro); | |
991234f0 | 3491 | } |
67918941 | 3492 | if (CONSP (coding_systems)) |
70949dac | 3493 | val = XCAR (coding_systems); |
67918941 | 3494 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3495 | val = XCAR (Vdefault_process_coding_system); |
67918941 RS |
3496 | else |
3497 | val = Qnil; | |
3498 | } | |
e690ca94 | 3499 | p->decode_coding_system = val; |
0fa1789e | 3500 | |
e690ca94 | 3501 | if (!NILP (tem)) |
6b61353c KH |
3502 | { |
3503 | val = XCAR (XCDR (tem)); | |
3504 | if (CONSP (val)) | |
3505 | val = XCDR (val); | |
3506 | } | |
e690ca94 | 3507 | else if (!NILP (Vcoding_system_for_write)) |
67918941 | 3508 | val = Vcoding_system_for_write; |
4b4deea2 | 3509 | else if (NILP (BVAR (current_buffer, enable_multibyte_characters))) |
67918941 RS |
3510 | val = Qnil; |
3511 | else | |
3512 | { | |
3513 | if (EQ (coding_systems, Qt)) | |
3514 | { | |
991234f0 KS |
3515 | if (NILP (host) || NILP (service)) |
3516 | coding_systems = Qnil; | |
3517 | else | |
3518 | { | |
b93aacde PE |
3519 | fargs[0] = Qopen_network_stream, fargs[1] = name, |
3520 | fargs[2] = buffer, fargs[3] = host, fargs[4] = service; | |
3521 | GCPRO1_VAR (proc, inner_gcpro); | |
3522 | coding_systems = Ffind_operation_coding_system (5, fargs); | |
3523 | UNGCPRO_VAR (inner_gcpro); | |
991234f0 | 3524 | } |
67918941 RS |
3525 | } |
3526 | if (CONSP (coding_systems)) | |
70949dac | 3527 | val = XCDR (coding_systems); |
67918941 | 3528 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3529 | val = XCDR (Vdefault_process_coding_system); |
67918941 RS |
3530 | else |
3531 | val = Qnil; | |
3532 | } | |
e690ca94 | 3533 | p->encode_coding_system = val; |
67918941 | 3534 | } |
03f04413 | 3535 | setup_process_coding_systems (proc); |
0fa1789e | 3536 | |
cbe81f1d | 3537 | p->decoding_buf = empty_unibyte_string; |
60f0fb11 | 3538 | p->decoding_carryover = 0; |
cbe81f1d | 3539 | p->encoding_buf = empty_unibyte_string; |
0fa1789e | 3540 | |
e690ca94 | 3541 | p->inherit_coding_system_flag |
e6fca843 | 3542 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); |
52a1b894 | 3543 | |
d0d6b7c5 JB |
3544 | UNGCPRO; |
3545 | return proc; | |
3546 | } | |
d0d6b7c5 | 3547 | |
6b61353c | 3548 | \f |
d23d8608 | 3549 | #if defined(HAVE_NET_IF_H) |
6b61353c KH |
3550 | |
3551 | #ifdef SIOCGIFCONF | |
3552 | DEFUN ("network-interface-list", Fnetwork_interface_list, Snetwork_interface_list, 0, 0, 0, | |
3553 | doc: /* Return an alist of all network interfaces and their network address. | |
3554 | Each element is a cons, the car of which is a string containing the | |
3555 | interface name, and the cdr is the network address in internal | |
3556 | format; see the description of ADDRESS in `make-network-process'. */) | |
5842a27b | 3557 | (void) |
6b61353c KH |
3558 | { |
3559 | struct ifconf ifconf; | |
3560 | struct ifreq *ifreqs = NULL; | |
3561 | int ifaces = 0; | |
3562 | int buf_size, s; | |
3563 | Lisp_Object res; | |
3564 | ||
3565 | s = socket (AF_INET, SOCK_STREAM, 0); | |
3566 | if (s < 0) | |
3567 | return Qnil; | |
3568 | ||
3569 | again: | |
3570 | ifaces += 25; | |
ed3751c8 | 3571 | buf_size = ifaces * sizeof (ifreqs[0]); |
6b61353c KH |
3572 | ifreqs = (struct ifreq *)xrealloc(ifreqs, buf_size); |
3573 | if (!ifreqs) | |
3574 | { | |
3575 | close (s); | |
3576 | return Qnil; | |
3577 | } | |
3578 | ||
3579 | ifconf.ifc_len = buf_size; | |
3580 | ifconf.ifc_req = ifreqs; | |
3581 | if (ioctl (s, SIOCGIFCONF, &ifconf)) | |
3582 | { | |
3583 | close (s); | |
3584 | return Qnil; | |
3585 | } | |
3586 | ||
3587 | if (ifconf.ifc_len == buf_size) | |
3588 | goto again; | |
3589 | ||
3590 | close (s); | |
3591 | ifaces = ifconf.ifc_len / sizeof (ifreqs[0]); | |
3592 | ||
3593 | res = Qnil; | |
3594 | while (--ifaces >= 0) | |
3595 | { | |
3596 | struct ifreq *ifq = &ifreqs[ifaces]; | |
3597 | char namebuf[sizeof (ifq->ifr_name) + 1]; | |
3598 | if (ifq->ifr_addr.sa_family != AF_INET) | |
3599 | continue; | |
72af86bd | 3600 | memcpy (namebuf, ifq->ifr_name, sizeof (ifq->ifr_name)); |
6b61353c KH |
3601 | namebuf[sizeof (ifq->ifr_name)] = 0; |
3602 | res = Fcons (Fcons (build_string (namebuf), | |
3603 | conv_sockaddr_to_lisp (&ifq->ifr_addr, | |
3604 | sizeof (struct sockaddr))), | |
3605 | res); | |
3606 | } | |
3607 | ||
3608 | return res; | |
3609 | } | |
3610 | #endif /* SIOCGIFCONF */ | |
3611 | ||
3612 | #if defined(SIOCGIFADDR) || defined(SIOCGIFHWADDR) || defined(SIOCGIFFLAGS) | |
3613 | ||
3614 | struct ifflag_def { | |
3615 | int flag_bit; | |
91433552 | 3616 | const char *flag_sym; |
6b61353c KH |
3617 | }; |
3618 | ||
91433552 | 3619 | static const struct ifflag_def ifflag_table[] = { |
6b61353c KH |
3620 | #ifdef IFF_UP |
3621 | { IFF_UP, "up" }, | |
3622 | #endif | |
3623 | #ifdef IFF_BROADCAST | |
3624 | { IFF_BROADCAST, "broadcast" }, | |
3625 | #endif | |
3626 | #ifdef IFF_DEBUG | |
3627 | { IFF_DEBUG, "debug" }, | |
3628 | #endif | |
3629 | #ifdef IFF_LOOPBACK | |
3630 | { IFF_LOOPBACK, "loopback" }, | |
3631 | #endif | |
3632 | #ifdef IFF_POINTOPOINT | |
3633 | { IFF_POINTOPOINT, "pointopoint" }, | |
3634 | #endif | |
3635 | #ifdef IFF_RUNNING | |
3636 | { IFF_RUNNING, "running" }, | |
3637 | #endif | |
3638 | #ifdef IFF_NOARP | |
3639 | { IFF_NOARP, "noarp" }, | |
3640 | #endif | |
3641 | #ifdef IFF_PROMISC | |
3642 | { IFF_PROMISC, "promisc" }, | |
3643 | #endif | |
3644 | #ifdef IFF_NOTRAILERS | |
3645 | { IFF_NOTRAILERS, "notrailers" }, | |
3646 | #endif | |
3647 | #ifdef IFF_ALLMULTI | |
3648 | { IFF_ALLMULTI, "allmulti" }, | |
3649 | #endif | |
3650 | #ifdef IFF_MASTER | |
3651 | { IFF_MASTER, "master" }, | |
3652 | #endif | |
3653 | #ifdef IFF_SLAVE | |
3654 | { IFF_SLAVE, "slave" }, | |
3655 | #endif | |
3656 | #ifdef IFF_MULTICAST | |
3657 | { IFF_MULTICAST, "multicast" }, | |
3658 | #endif | |
3659 | #ifdef IFF_PORTSEL | |
3660 | { IFF_PORTSEL, "portsel" }, | |
3661 | #endif | |
3662 | #ifdef IFF_AUTOMEDIA | |
3663 | { IFF_AUTOMEDIA, "automedia" }, | |
3664 | #endif | |
3665 | #ifdef IFF_DYNAMIC | |
3666 | { IFF_DYNAMIC, "dynamic" }, | |
e1652a86 | 3667 | #endif |
2026418c YM |
3668 | #ifdef IFF_OACTIVE |
3669 | { IFF_OACTIVE, "oactive" }, /* OpenBSD: transmission in progress */ | |
e1652a86 KS |
3670 | #endif |
3671 | #ifdef IFF_SIMPLEX | |
3672 | { IFF_SIMPLEX, "simplex" }, /* OpenBSD: can't hear own transmissions */ | |
3673 | #endif | |
3674 | #ifdef IFF_LINK0 | |
3675 | { IFF_LINK0, "link0" }, /* OpenBSD: per link layer defined bit */ | |
3676 | #endif | |
3677 | #ifdef IFF_LINK1 | |
3678 | { IFF_LINK1, "link1" }, /* OpenBSD: per link layer defined bit */ | |
3679 | #endif | |
3680 | #ifdef IFF_LINK2 | |
3681 | { IFF_LINK2, "link2" }, /* OpenBSD: per link layer defined bit */ | |
6b61353c KH |
3682 | #endif |
3683 | { 0, 0 } | |
3684 | }; | |
3685 | ||
3686 | DEFUN ("network-interface-info", Fnetwork_interface_info, Snetwork_interface_info, 1, 1, 0, | |
3687 | doc: /* Return information about network interface named IFNAME. | |
3688 | The return value is a list (ADDR BCAST NETMASK HWADDR FLAGS), | |
3689 | where ADDR is the layer 3 address, BCAST is the layer 3 broadcast address, | |
3690 | NETMASK is the layer 3 network mask, HWADDR is the layer 2 addres, and | |
3691 | FLAGS is the current flags of the interface. */) | |
5842a27b | 3692 | (Lisp_Object ifname) |
6b61353c KH |
3693 | { |
3694 | struct ifreq rq; | |
3695 | Lisp_Object res = Qnil; | |
3696 | Lisp_Object elt; | |
3697 | int s; | |
3698 | int any = 0; | |
3699 | ||
3700 | CHECK_STRING (ifname); | |
3701 | ||
72af86bd | 3702 | memset (rq.ifr_name, 0, sizeof rq.ifr_name); |
0da49335 | 3703 | strncpy (rq.ifr_name, SSDATA (ifname), sizeof (rq.ifr_name)); |
6b61353c KH |
3704 | |
3705 | s = socket (AF_INET, SOCK_STREAM, 0); | |
3706 | if (s < 0) | |
3707 | return Qnil; | |
3708 | ||
3709 | elt = Qnil; | |
3710 | #if defined(SIOCGIFFLAGS) && defined(HAVE_STRUCT_IFREQ_IFR_FLAGS) | |
3711 | if (ioctl (s, SIOCGIFFLAGS, &rq) == 0) | |
3712 | { | |
3713 | int flags = rq.ifr_flags; | |
91433552 | 3714 | const struct ifflag_def *fp; |
6b61353c KH |
3715 | int fnum; |
3716 | ||
bc57d757 | 3717 | any = 1; |
82a80058 | 3718 | for (fp = ifflag_table; flags != 0 && fp->flag_sym; fp++) |
6b61353c KH |
3719 | { |
3720 | if (flags & fp->flag_bit) | |
3721 | { | |
3722 | elt = Fcons (intern (fp->flag_sym), elt); | |
3723 | flags -= fp->flag_bit; | |
3724 | } | |
3725 | } | |
fa3c87e1 | 3726 | for (fnum = 0; flags && fnum < 32; flags >>= 1, fnum++) |
6b61353c | 3727 | { |
fa3c87e1 | 3728 | if (flags & 1) |
6b61353c KH |
3729 | { |
3730 | elt = Fcons (make_number (fnum), elt); | |
3731 | } | |
3732 | } | |
3733 | } | |
3734 | #endif | |
3735 | res = Fcons (elt, res); | |
3736 | ||
3737 | elt = Qnil; | |
3738 | #if defined(SIOCGIFHWADDR) && defined(HAVE_STRUCT_IFREQ_IFR_HWADDR) | |
3739 | if (ioctl (s, SIOCGIFHWADDR, &rq) == 0) | |
3740 | { | |
3741 | Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil); | |
3742 | register struct Lisp_Vector *p = XVECTOR (hwaddr); | |
3743 | int n; | |
3744 | ||
bc57d757 | 3745 | any = 1; |
6b61353c KH |
3746 | for (n = 0; n < 6; n++) |
3747 | p->contents[n] = make_number (((unsigned char *)&rq.ifr_hwaddr.sa_data[0])[n]); | |
3748 | elt = Fcons (make_number (rq.ifr_hwaddr.sa_family), hwaddr); | |
3749 | } | |
3750 | #endif | |
3751 | res = Fcons (elt, res); | |
3752 | ||
3753 | elt = Qnil; | |
2026418c | 3754 | #if defined(SIOCGIFNETMASK) && (defined(HAVE_STRUCT_IFREQ_IFR_NETMASK) || defined(HAVE_STRUCT_IFREQ_IFR_ADDR)) |
6b61353c KH |
3755 | if (ioctl (s, SIOCGIFNETMASK, &rq) == 0) |
3756 | { | |
bc57d757 | 3757 | any = 1; |
2026418c | 3758 | #ifdef HAVE_STRUCT_IFREQ_IFR_NETMASK |
6b61353c | 3759 | elt = conv_sockaddr_to_lisp (&rq.ifr_netmask, sizeof (rq.ifr_netmask)); |
2026418c YM |
3760 | #else |
3761 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); | |
3762 | #endif | |
6b61353c KH |
3763 | } |
3764 | #endif | |
3765 | res = Fcons (elt, res); | |
3766 | ||
3767 | elt = Qnil; | |
3768 | #if defined(SIOCGIFBRDADDR) && defined(HAVE_STRUCT_IFREQ_IFR_BROADADDR) | |
3769 | if (ioctl (s, SIOCGIFBRDADDR, &rq) == 0) | |
3770 | { | |
bc57d757 | 3771 | any = 1; |
6b61353c KH |
3772 | elt = conv_sockaddr_to_lisp (&rq.ifr_broadaddr, sizeof (rq.ifr_broadaddr)); |
3773 | } | |
3774 | #endif | |
3775 | res = Fcons (elt, res); | |
3776 | ||
3777 | elt = Qnil; | |
3778 | #if defined(SIOCGIFADDR) && defined(HAVE_STRUCT_IFREQ_IFR_ADDR) | |
3779 | if (ioctl (s, SIOCGIFADDR, &rq) == 0) | |
3780 | { | |
bc57d757 | 3781 | any = 1; |
6b61353c KH |
3782 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); |
3783 | } | |
3784 | #endif | |
3785 | res = Fcons (elt, res); | |
3786 | ||
3787 | close (s); | |
3788 | ||
3789 | return any ? res : Qnil; | |
3790 | } | |
3791 | #endif | |
d23d8608 | 3792 | #endif /* defined(HAVE_NET_IF_H) */ |
6b61353c | 3793 | |
04391069 RS |
3794 | /* Turn off input and output for process PROC. */ |
3795 | ||
40ccffa6 | 3796 | static void |
d3da34e0 | 3797 | deactivate_process (Lisp_Object proc) |
d0d6b7c5 JB |
3798 | { |
3799 | register int inchannel, outchannel; | |
3800 | register struct Lisp_Process *p = XPROCESS (proc); | |
3801 | ||
60f0fb11 SM |
3802 | inchannel = p->infd; |
3803 | outchannel = p->outfd; | |
d0d6b7c5 | 3804 | |
6b61353c | 3805 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 3806 | if (p->read_output_delay > 0) |
6b61353c KH |
3807 | { |
3808 | if (--process_output_delay_count < 0) | |
3809 | process_output_delay_count = 0; | |
60f0fb11 SM |
3810 | p->read_output_delay = 0; |
3811 | p->read_output_skip = 0; | |
6b61353c KH |
3812 | } |
3813 | #endif | |
f3d9532b | 3814 | |
a9f2c884 | 3815 | if (inchannel >= 0) |
d0d6b7c5 JB |
3816 | { |
3817 | /* Beware SIGCHLD hereabouts. */ | |
3818 | flush_pending_output (inchannel); | |
68c45bf0 | 3819 | emacs_close (inchannel); |
a9f2c884 | 3820 | if (outchannel >= 0 && outchannel != inchannel) |
68c45bf0 | 3821 | emacs_close (outchannel); |
d0d6b7c5 | 3822 | |
60f0fb11 SM |
3823 | p->infd = -1; |
3824 | p->outfd = -1; | |
e690ca94 KS |
3825 | #ifdef DATAGRAM_SOCKETS |
3826 | if (DATAGRAM_CHAN_P (inchannel)) | |
3827 | { | |
3828 | xfree (datagram_address[inchannel].sa); | |
3829 | datagram_address[inchannel].sa = 0; | |
3830 | datagram_address[inchannel].len = 0; | |
3831 | } | |
3832 | #endif | |
d0d6b7c5 JB |
3833 | chan_process[inchannel] = Qnil; |
3834 | FD_CLR (inchannel, &input_wait_mask); | |
a69281ff | 3835 | FD_CLR (inchannel, &non_keyboard_wait_mask); |
bad49fc7 | 3836 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
3837 | if (FD_ISSET (inchannel, &connect_wait_mask)) |
3838 | { | |
3839 | FD_CLR (inchannel, &connect_wait_mask); | |
3fad2ad2 | 3840 | FD_CLR (inchannel, &write_mask); |
dd2a17ab KS |
3841 | if (--num_pending_connects < 0) |
3842 | abort (); | |
3843 | } | |
bad49fc7 | 3844 | #endif |
7d0e672e RS |
3845 | if (inchannel == max_process_desc) |
3846 | { | |
3847 | int i; | |
3848 | /* We just closed the highest-numbered process input descriptor, | |
3849 | so recompute the highest-numbered one now. */ | |
3850 | max_process_desc = 0; | |
3851 | for (i = 0; i < MAXDESC; i++) | |
3852 | if (!NILP (chan_process[i])) | |
3853 | max_process_desc = i; | |
3854 | } | |
d0d6b7c5 JB |
3855 | } |
3856 | } | |
3857 | ||
d0d6b7c5 JB |
3858 | \f |
3859 | DEFUN ("accept-process-output", Faccept_process_output, Saccept_process_output, | |
107ed38d | 3860 | 0, 4, 0, |
fdb82f93 PJ |
3861 | doc: /* Allow any pending output from subprocesses to be read by Emacs. |
3862 | It is read into the process' buffers or given to their filter functions. | |
3863 | Non-nil arg PROCESS means do not return until some output has been received | |
3864 | from PROCESS. | |
5088da42 | 3865 | |
2a7bb882 MR |
3866 | Non-nil second arg SECONDS and third arg MILLISEC are number of seconds |
3867 | and milliseconds to wait; return after that much time whether or not | |
3868 | there is any subprocess output. If SECONDS is a floating point number, | |
5088da42 | 3869 | it specifies a fractional number of seconds to wait. |
891bd142 | 3870 | The MILLISEC argument is obsolete and should be avoided. |
5088da42 | 3871 | |
107ed38d KS |
3872 | If optional fourth arg JUST-THIS-ONE is non-nil, only accept output |
3873 | from PROCESS, suspending reading output from other processes. | |
3874 | If JUST-THIS-ONE is an integer, don't run any timers either. | |
e0f24100 | 3875 | Return non-nil if we received any output before the timeout expired. */) |
5842a27b | 3876 | (register Lisp_Object process, Lisp_Object seconds, Lisp_Object millisec, Lisp_Object just_this_one) |
d0d6b7c5 | 3877 | { |
5088da42 | 3878 | int secs, usecs = 0; |
d0d6b7c5 | 3879 | |
0748d150 | 3880 | if (! NILP (process)) |
b7826503 | 3881 | CHECK_PROCESS (process); |
107ed38d KS |
3882 | else |
3883 | just_this_one = Qnil; | |
0748d150 | 3884 | |
891bd142 SM |
3885 | if (!NILP (millisec)) |
3886 | { /* Obsolete calling convention using integers rather than floats. */ | |
3887 | CHECK_NUMBER (millisec); | |
3888 | if (NILP (seconds)) | |
3889 | seconds = make_float (XINT (millisec) / 1000.0); | |
3890 | else | |
3891 | { | |
3892 | CHECK_NUMBER (seconds); | |
3893 | seconds = make_float (XINT (millisec) / 1000.0 + XINT (seconds)); | |
3894 | } | |
3895 | } | |
3896 | ||
5088da42 | 3897 | if (!NILP (seconds)) |
d0d6b7c5 | 3898 | { |
5088da42 KS |
3899 | if (INTEGERP (seconds)) |
3900 | secs = XINT (seconds); | |
3901 | else if (FLOATP (seconds)) | |
3902 | { | |
3903 | double timeout = XFLOAT_DATA (seconds); | |
3904 | secs = (int) timeout; | |
3905 | usecs = (int) ((timeout - (double) secs) * 1000000); | |
3906 | } | |
3907 | else | |
3908 | wrong_type_argument (Qnumberp, seconds); | |
d0d6b7c5 | 3909 | |
5088da42 KS |
3910 | if (secs < 0 || (secs == 0 && usecs == 0)) |
3911 | secs = -1, usecs = 0; | |
d0d6b7c5 JB |
3912 | } |
3913 | else | |
5088da42 | 3914 | secs = NILP (process) ? -1 : 0; |
d0d6b7c5 JB |
3915 | |
3916 | return | |
5088da42 | 3917 | (wait_reading_process_output (secs, usecs, 0, 0, |
214d6069 KS |
3918 | Qnil, |
3919 | !NILP (process) ? XPROCESS (process) : NULL, | |
3920 | NILP (just_this_one) ? 0 : | |
3921 | !INTEGERP (just_this_one) ? 1 : -1) | |
d0d6b7c5 JB |
3922 | ? Qt : Qnil); |
3923 | } | |
3924 | ||
e690ca94 KS |
3925 | /* Accept a connection for server process SERVER on CHANNEL. */ |
3926 | ||
3927 | static int connect_counter = 0; | |
3928 | ||
3929 | static void | |
d3da34e0 | 3930 | server_accept_connection (Lisp_Object server, int channel) |
e690ca94 KS |
3931 | { |
3932 | Lisp_Object proc, caller, name, buffer; | |
3933 | Lisp_Object contact, host, service; | |
3934 | struct Lisp_Process *ps= XPROCESS (server); | |
3935 | struct Lisp_Process *p; | |
3936 | int s; | |
3937 | union u_sockaddr { | |
3938 | struct sockaddr sa; | |
3939 | struct sockaddr_in in; | |
e1652a86 KS |
3940 | #ifdef AF_INET6 |
3941 | struct sockaddr_in6 in6; | |
3942 | #endif | |
e690ca94 KS |
3943 | #ifdef HAVE_LOCAL_SOCKETS |
3944 | struct sockaddr_un un; | |
3945 | #endif | |
3946 | } saddr; | |
401bf9b4 | 3947 | socklen_t len = sizeof saddr; |
e690ca94 KS |
3948 | |
3949 | s = accept (channel, &saddr.sa, &len); | |
3950 | ||
3951 | if (s < 0) | |
3952 | { | |
3953 | int code = errno; | |
3954 | ||
3955 | if (code == EAGAIN) | |
3956 | return; | |
3957 | #ifdef EWOULDBLOCK | |
3958 | if (code == EWOULDBLOCK) | |
3959 | return; | |
3960 | #endif | |
3961 | ||
3962 | if (!NILP (ps->log)) | |
3963 | call3 (ps->log, server, Qnil, | |
3964 | concat3 (build_string ("accept failed with code"), | |
3965 | Fnumber_to_string (make_number (code)), | |
3966 | build_string ("\n"))); | |
3967 | return; | |
3968 | } | |
3969 | ||
3970 | connect_counter++; | |
3971 | ||
3972 | /* Setup a new process to handle the connection. */ | |
3973 | ||
3974 | /* Generate a unique identification of the caller, and build contact | |
3975 | information for this process. */ | |
3976 | host = Qt; | |
3977 | service = Qnil; | |
3978 | switch (saddr.sa.sa_family) | |
3979 | { | |
3980 | case AF_INET: | |
3981 | { | |
3982 | Lisp_Object args[5]; | |
3983 | unsigned char *ip = (unsigned char *)&saddr.in.sin_addr.s_addr; | |
3984 | args[0] = build_string ("%d.%d.%d.%d"); | |
3985 | args[1] = make_number (*ip++); | |
3986 | args[2] = make_number (*ip++); | |
3987 | args[3] = make_number (*ip++); | |
3988 | args[4] = make_number (*ip++); | |
3989 | host = Fformat (5, args); | |
3990 | service = make_number (ntohs (saddr.in.sin_port)); | |
3991 | ||
3992 | args[0] = build_string (" <%s:%d>"); | |
3993 | args[1] = host; | |
3994 | args[2] = service; | |
3995 | caller = Fformat (3, args); | |
3996 | } | |
3997 | break; | |
3998 | ||
e1652a86 KS |
3999 | #ifdef AF_INET6 |
4000 | case AF_INET6: | |
4001 | { | |
4002 | Lisp_Object args[9]; | |
4003 | uint16_t *ip6 = (uint16_t *)&saddr.in6.sin6_addr; | |
4004 | int i; | |
4005 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
4006 | for (i = 0; i < 8; i++) | |
ed3751c8 | 4007 | args[i+1] = make_number (ntohs (ip6[i])); |
e1652a86 KS |
4008 | host = Fformat (9, args); |
4009 | service = make_number (ntohs (saddr.in.sin_port)); | |
4010 | ||
4011 | args[0] = build_string (" <[%s]:%d>"); | |
4012 | args[1] = host; | |
4013 | args[2] = service; | |
4014 | caller = Fformat (3, args); | |
4015 | } | |
4016 | break; | |
4017 | #endif | |
4018 | ||
e690ca94 KS |
4019 | #ifdef HAVE_LOCAL_SOCKETS |
4020 | case AF_LOCAL: | |
4021 | #endif | |
4022 | default: | |
4023 | caller = Fnumber_to_string (make_number (connect_counter)); | |
eef60308 | 4024 | caller = concat3 (build_string (" <"), caller, build_string (">")); |
e690ca94 KS |
4025 | break; |
4026 | } | |
4027 | ||
4028 | /* Create a new buffer name for this process if it doesn't have a | |
4029 | filter. The new buffer name is based on the buffer name or | |
4030 | process name of the server process concatenated with the caller | |
4031 | identification. */ | |
4032 | ||
4033 | if (!NILP (ps->filter) && !EQ (ps->filter, Qt)) | |
4034 | buffer = Qnil; | |
4035 | else | |
4036 | { | |
4037 | buffer = ps->buffer; | |
4038 | if (!NILP (buffer)) | |
4039 | buffer = Fbuffer_name (buffer); | |
4040 | else | |
4041 | buffer = ps->name; | |
4042 | if (!NILP (buffer)) | |
4043 | { | |
4044 | buffer = concat2 (buffer, caller); | |
4045 | buffer = Fget_buffer_create (buffer); | |
4046 | } | |
4047 | } | |
4048 | ||
4049 | /* Generate a unique name for the new server process. Combine the | |
4050 | server process name with the caller identification. */ | |
4051 | ||
4052 | name = concat2 (ps->name, caller); | |
4053 | proc = make_process (name); | |
4054 | ||
4055 | chan_process[s] = proc; | |
4056 | ||
4057 | #ifdef O_NONBLOCK | |
4058 | fcntl (s, F_SETFL, O_NONBLOCK); | |
4059 | #else | |
4060 | #ifdef O_NDELAY | |
4061 | fcntl (s, F_SETFL, O_NDELAY); | |
4062 | #endif | |
4063 | #endif | |
4064 | ||
4065 | p = XPROCESS (proc); | |
4066 | ||
4067 | /* Build new contact information for this setup. */ | |
4068 | contact = Fcopy_sequence (ps->childp); | |
4069 | contact = Fplist_put (contact, QCserver, Qnil); | |
4070 | contact = Fplist_put (contact, QChost, host); | |
4071 | if (!NILP (service)) | |
4072 | contact = Fplist_put (contact, QCservice, service); | |
177c0ea7 | 4073 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
4074 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4075 | #ifdef HAVE_GETSOCKNAME | |
4076 | len = sizeof saddr; | |
2185db04 | 4077 | if (getsockname (s, &saddr.sa, &len) == 0) |
177c0ea7 | 4078 | contact = Fplist_put (contact, QClocal, |
e690ca94 KS |
4079 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4080 | #endif | |
4081 | ||
4082 | p->childp = contact; | |
faa7db08 | 4083 | p->plist = Fcopy_sequence (ps->plist); |
d888760c | 4084 | p->type = Qnetwork; |
ac4a7584 | 4085 | |
e690ca94 KS |
4086 | p->buffer = buffer; |
4087 | p->sentinel = ps->sentinel; | |
4088 | p->filter = ps->filter; | |
4089 | p->command = Qnil; | |
6bfd98e7 | 4090 | p->pid = 0; |
60f0fb11 SM |
4091 | p->infd = s; |
4092 | p->outfd = s; | |
e690ca94 KS |
4093 | p->status = Qrun; |
4094 | ||
4095 | /* Client processes for accepted connections are not stopped initially. */ | |
4096 | if (!EQ (p->filter, Qt)) | |
4097 | { | |
4098 | FD_SET (s, &input_wait_mask); | |
4099 | FD_SET (s, &non_keyboard_wait_mask); | |
4100 | } | |
4101 | ||
4102 | if (s > max_process_desc) | |
4103 | max_process_desc = s; | |
4104 | ||
177c0ea7 | 4105 | /* Setup coding system for new process based on server process. |
e690ca94 KS |
4106 | This seems to be the proper thing to do, as the coding system |
4107 | of the new process should reflect the settings at the time the | |
4108 | server socket was opened; not the current settings. */ | |
4109 | ||
4110 | p->decode_coding_system = ps->decode_coding_system; | |
4111 | p->encode_coding_system = ps->encode_coding_system; | |
03f04413 | 4112 | setup_process_coding_systems (proc); |
e690ca94 | 4113 | |
cbe81f1d | 4114 | p->decoding_buf = empty_unibyte_string; |
60f0fb11 | 4115 | p->decoding_carryover = 0; |
cbe81f1d | 4116 | p->encoding_buf = empty_unibyte_string; |
e690ca94 KS |
4117 | |
4118 | p->inherit_coding_system_flag | |
60f0fb11 | 4119 | = (NILP (buffer) ? 0 : ps->inherit_coding_system_flag); |
e690ca94 KS |
4120 | |
4121 | if (!NILP (ps->log)) | |
4122 | call3 (ps->log, server, proc, | |
4123 | concat3 (build_string ("accept from "), | |
4124 | (STRINGP (host) ? host : build_string ("-")), | |
4125 | build_string ("\n"))); | |
4126 | ||
bed9664a | 4127 | if (!NILP (p->sentinel)) |
177c0ea7 | 4128 | exec_sentinel (proc, |
e690ca94 KS |
4129 | concat3 (build_string ("open from "), |
4130 | (STRINGP (host) ? host : build_string ("-")), | |
4131 | build_string ("\n"))); | |
4132 | } | |
4133 | ||
d0d6b7c5 JB |
4134 | /* This variable is different from waiting_for_input in keyboard.c. |
4135 | It is used to communicate to a lisp process-filter/sentinel (via the | |
f3d9532b | 4136 | function Fwaiting_for_user_input_p below) whether Emacs was waiting |
d0d6b7c5 JB |
4137 | for user-input when that process-filter was called. |
4138 | waiting_for_input cannot be used as that is by definition 0 when | |
d430ee71 RS |
4139 | lisp code is being evalled. |
4140 | This is also used in record_asynch_buffer_change. | |
4141 | For that purpose, this must be 0 | |
214d6069 | 4142 | when not inside wait_reading_process_output. */ |
d0d6b7c5 JB |
4143 | static int waiting_for_user_input_p; |
4144 | ||
2beb96f9 | 4145 | static Lisp_Object |
d3da34e0 | 4146 | wait_reading_process_output_unwind (Lisp_Object data) |
2beb96f9 KS |
4147 | { |
4148 | waiting_for_user_input_p = XINT (data); | |
4149 | return Qnil; | |
4150 | } | |
4151 | ||
c573ae8e | 4152 | /* This is here so breakpoints can be put on it. */ |
dfcf069d | 4153 | static void |
d3da34e0 | 4154 | wait_reading_process_output_1 (void) |
c573ae8e RS |
4155 | { |
4156 | } | |
4157 | ||
e1e541bd | 4158 | /* Use a wrapper around select to work around a bug in gdb 5.3. |
96c834b6 | 4159 | Normally, the wrapper is optimized away by inlining. |
e1e541bd KS |
4160 | |
4161 | If emacs is stopped inside select, the gdb backtrace doesn't | |
4162 | show the function which called select, so it is practically | |
4163 | impossible to step through wait_reading_process_output. */ | |
4164 | ||
4165 | #ifndef select | |
55d4c1b2 | 4166 | static inline int |
d3da34e0 | 4167 | select_wrapper (int n, fd_set *rfd, fd_set *wfd, fd_set *xfd, struct timeval *tmo) |
e1e541bd KS |
4168 | { |
4169 | return select (n, rfd, wfd, xfd, tmo); | |
4170 | } | |
4171 | #define select select_wrapper | |
4172 | #endif | |
4173 | ||
d0d6b7c5 JB |
4174 | /* Read and dispose of subprocess output while waiting for timeout to |
4175 | elapse and/or keyboard input to be available. | |
4176 | ||
de6fd4b9 | 4177 | TIME_LIMIT is: |
d0d6b7c5 JB |
4178 | timeout in seconds, or |
4179 | zero for no limit, or | |
4180 | -1 means gobble data immediately available but don't wait for any. | |
4181 | ||
de6fd4b9 RS |
4182 | MICROSECS is: |
4183 | an additional duration to wait, measured in microseconds. | |
4184 | If this is nonzero and time_limit is 0, then the timeout | |
4185 | consists of MICROSECS only. | |
6e4f3667 | 4186 | |
de6fd4b9 | 4187 | READ_KBD is a lisp value: |
d0d6b7c5 JB |
4188 | 0 to ignore keyboard input, or |
4189 | 1 to return when input is available, or | |
84aa3ace | 4190 | -1 meaning caller will actually read the input, so don't throw to |
d0d6b7c5 | 4191 | the quit handler, or |
d0d6b7c5 | 4192 | |
de6fd4b9 | 4193 | DO_DISPLAY != 0 means redisplay should be done to show subprocess |
107ed38d | 4194 | output that arrives. |
d0d6b7c5 | 4195 | |
b89a415a KS |
4196 | If WAIT_FOR_CELL is a cons cell, wait until its car is non-nil |
4197 | (and gobble terminal input into the buffer if any arrives). | |
d0d6b7c5 | 4198 | |
b89a415a | 4199 | If WAIT_PROC is specified, wait until something arrives from that |
e0f24100 | 4200 | process. The return value is true if we read some input from |
b89a415a KS |
4201 | that process. |
4202 | ||
4203 | If JUST_WAIT_PROC is non-nil, handle only output from WAIT_PROC | |
4204 | (suspending output from other processes). A negative value | |
4205 | means don't run any timers either. | |
4206 | ||
e0f24100 | 4207 | If WAIT_PROC is specified, then the function returns true if we |
b89a415a | 4208 | received input from that process before the timeout elapsed. |
e0f24100 | 4209 | Otherwise, return true if we received input from any process. */ |
d0d6b7c5 | 4210 | |
dfcf069d | 4211 | int |
d5a3eaaf AS |
4212 | wait_reading_process_output (int time_limit, int microsecs, int read_kbd, |
4213 | int do_display, | |
4214 | Lisp_Object wait_for_cell, | |
4215 | struct Lisp_Process *wait_proc, int just_wait_proc) | |
d0d6b7c5 | 4216 | { |
41d03b9a | 4217 | register int channel, nfds; |
855448dc | 4218 | SELECT_TYPE Available; |
3fad2ad2 J |
4219 | SELECT_TYPE Writeok; |
4220 | int check_write; | |
bad49fc7 | 4221 | int check_delay, no_avail; |
d0d6b7c5 JB |
4222 | int xerrno; |
4223 | Lisp_Object proc; | |
41d03b9a | 4224 | EMACS_TIME timeout, end_time; |
a9f2c884 | 4225 | int wait_channel = -1; |
d0d6b7c5 | 4226 | int got_some_input = 0; |
2beb96f9 | 4227 | int count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
4228 | |
4229 | FD_ZERO (&Available); | |
3fad2ad2 | 4230 | FD_ZERO (&Writeok); |
d0d6b7c5 | 4231 | |
283357a7 | 4232 | if (time_limit == 0 && microsecs == 0 && wait_proc && !NILP (Vinhibit_quit) |
2b0a91e7 SM |
4233 | && !(CONSP (wait_proc->status) && EQ (XCAR (wait_proc->status), Qexit))) |
4234 | message ("Blocking call to accept-process-output with quit inhibited!!"); | |
4235 | ||
b89a415a KS |
4236 | /* If wait_proc is a process to watch, set wait_channel accordingly. */ |
4237 | if (wait_proc != NULL) | |
60f0fb11 | 4238 | wait_channel = wait_proc->infd; |
84aa3ace | 4239 | |
2beb96f9 KS |
4240 | record_unwind_protect (wait_reading_process_output_unwind, |
4241 | make_number (waiting_for_user_input_p)); | |
b89a415a | 4242 | waiting_for_user_input_p = read_kbd; |
d0d6b7c5 JB |
4243 | |
4244 | /* Since we may need to wait several times, | |
4245 | compute the absolute time to return at. */ | |
4246 | if (time_limit || microsecs) | |
4247 | { | |
4248 | EMACS_GET_TIME (end_time); | |
4249 | EMACS_SET_SECS_USECS (timeout, time_limit, microsecs); | |
4250 | EMACS_ADD_TIME (end_time, end_time, timeout); | |
4251 | } | |
4252 | ||
d0d6b7c5 JB |
4253 | while (1) |
4254 | { | |
c0239a0b RS |
4255 | int timeout_reduced_for_timers = 0; |
4256 | ||
d0d6b7c5 JB |
4257 | /* If calling from keyboard input, do not quit |
4258 | since we want to return C-g as an input character. | |
4259 | Otherwise, do pending quit if requested. */ | |
b89a415a | 4260 | if (read_kbd >= 0) |
d0d6b7c5 | 4261 | QUIT; |
6b61353c | 4262 | #ifdef SYNC_INPUT |
ef5eb925 | 4263 | else |
c3eff1b0 | 4264 | process_pending_signals (); |
6b61353c | 4265 | #endif |
d0d6b7c5 | 4266 | |
889255b4 | 4267 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 4268 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
889255b4 RS |
4269 | break; |
4270 | ||
d0d6b7c5 JB |
4271 | /* Compute time from now till when time limit is up */ |
4272 | /* Exit if already run out */ | |
4273 | if (time_limit == -1) | |
4274 | { | |
4275 | /* -1 specified for timeout means | |
4276 | gobble output available now | |
4277 | but don't wait at all. */ | |
4278 | ||
4279 | EMACS_SET_SECS_USECS (timeout, 0, 0); | |
4280 | } | |
4281 | else if (time_limit || microsecs) | |
4282 | { | |
4283 | EMACS_GET_TIME (timeout); | |
4284 | EMACS_SUB_TIME (timeout, end_time, timeout); | |
4285 | if (EMACS_TIME_NEG_P (timeout)) | |
4286 | break; | |
4287 | } | |
4288 | else | |
4289 | { | |
4290 | EMACS_SET_SECS_USECS (timeout, 100000, 0); | |
4291 | } | |
4292 | ||
f854a00b RS |
4293 | /* Normally we run timers here. |
4294 | But not if wait_for_cell; in those cases, | |
4295 | the wait is supposed to be short, | |
4296 | and those callers cannot handle running arbitrary Lisp code here. */ | |
107ed38d | 4297 | if (NILP (wait_for_cell) |
b89a415a | 4298 | && just_wait_proc >= 0) |
fb4c3627 | 4299 | { |
c0239a0b | 4300 | EMACS_TIME timer_delay; |
c573ae8e | 4301 | |
9baacf76 | 4302 | do |
c573ae8e | 4303 | { |
9baacf76 | 4304 | int old_timers_run = timers_run; |
c88164fe | 4305 | struct buffer *old_buffer = current_buffer; |
70bb1e5f | 4306 | Lisp_Object old_window = selected_window; |
177c0ea7 | 4307 | |
f868cd8a | 4308 | timer_delay = timer_check (); |
a2fab450 GM |
4309 | |
4310 | /* If a timer has run, this might have changed buffers | |
4311 | an alike. Make read_key_sequence aware of that. */ | |
4312 | if (timers_run != old_timers_run | |
70bb1e5f CY |
4313 | && (old_buffer != current_buffer |
4314 | || !EQ (old_window, selected_window)) | |
a2fab450 GM |
4315 | && waiting_for_user_input_p == -1) |
4316 | record_asynch_buffer_change (); | |
177c0ea7 | 4317 | |
9baacf76 GM |
4318 | if (timers_run != old_timers_run && do_display) |
4319 | /* We must retry, since a timer may have requeued itself | |
4320 | and that could alter the time_delay. */ | |
3007ebfb | 4321 | redisplay_preserve_echo_area (9); |
9baacf76 GM |
4322 | else |
4323 | break; | |
c573ae8e | 4324 | } |
9baacf76 | 4325 | while (!detect_input_pending ()); |
c573ae8e | 4326 | |
69645afc | 4327 | /* If there is unread keyboard input, also return. */ |
b89a415a | 4328 | if (read_kbd != 0 |
69645afc RS |
4329 | && requeued_events_pending_p ()) |
4330 | break; | |
4331 | ||
c0239a0b | 4332 | if (! EMACS_TIME_NEG_P (timer_delay) && time_limit != -1) |
fb4c3627 RS |
4333 | { |
4334 | EMACS_TIME difference; | |
4335 | EMACS_SUB_TIME (difference, timer_delay, timeout); | |
4336 | if (EMACS_TIME_NEG_P (difference)) | |
c0239a0b RS |
4337 | { |
4338 | timeout = timer_delay; | |
4339 | timeout_reduced_for_timers = 1; | |
4340 | } | |
fb4c3627 | 4341 | } |
4abca5e7 RS |
4342 | /* If time_limit is -1, we are not going to wait at all. */ |
4343 | else if (time_limit != -1) | |
c573ae8e RS |
4344 | { |
4345 | /* This is so a breakpoint can be put here. */ | |
214d6069 | 4346 | wait_reading_process_output_1 (); |
c573ae8e | 4347 | } |
fb4c3627 RS |
4348 | } |
4349 | ||
90ab1a81 JB |
4350 | /* Cause C-g and alarm signals to take immediate action, |
4351 | and cause input available signals to zero out timeout. | |
4352 | ||
4353 | It is important that we do this before checking for process | |
4354 | activity. If we get a SIGCHLD after the explicit checks for | |
4355 | process activity, timeout is the only way we will know. */ | |
b89a415a | 4356 | if (read_kbd < 0) |
90ab1a81 JB |
4357 | set_waiting_for_input (&timeout); |
4358 | ||
6be429b1 JB |
4359 | /* If status of something has changed, and no input is |
4360 | available, notify the user of the change right away. After | |
4361 | this explicit check, we'll let the SIGCHLD handler zap | |
e42bdf01 CY |
4362 | timeout to get our attention. */ |
4363 | if (update_tick != process_tick) | |
6be429b1 | 4364 | { |
bad49fc7 | 4365 | SELECT_TYPE Atemp; |
bad49fc7 | 4366 | SELECT_TYPE Ctemp; |
dd2a17ab | 4367 | |
cb768704 J |
4368 | if (kbd_on_hold_p ()) |
4369 | FD_ZERO (&Atemp); | |
4370 | else | |
4371 | Atemp = input_wait_mask; | |
3fad2ad2 | 4372 | Ctemp = write_mask; |
bad49fc7 | 4373 | |
6be429b1 | 4374 | EMACS_SET_SECS_USECS (timeout, 0, 0); |
3fad2ad2 | 4375 | if ((select (max (max_process_desc, max_input_desc) + 1, |
177c0ea7 | 4376 | &Atemp, |
bad49fc7 | 4377 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab | 4378 | (num_pending_connects > 0 ? &Ctemp : (SELECT_TYPE *)0), |
bad49fc7 KS |
4379 | #else |
4380 | (SELECT_TYPE *)0, | |
4381 | #endif | |
dd2a17ab | 4382 | (SELECT_TYPE *)0, &timeout) |
ecd1f654 | 4383 | <= 0)) |
90ab1a81 JB |
4384 | { |
4385 | /* It's okay for us to do this and then continue with | |
a0e4d3f3 | 4386 | the loop, since timeout has already been zeroed out. */ |
90ab1a81 | 4387 | clear_waiting_for_input (); |
ff6daed3 | 4388 | status_notify (NULL); |
e42bdf01 | 4389 | if (do_display) redisplay_preserve_echo_area (13); |
90ab1a81 | 4390 | } |
6be429b1 JB |
4391 | } |
4392 | ||
dd2a17ab | 4393 | /* Don't wait for output from a non-running process. Just |
63136da6 | 4394 | read whatever data has already been received. */ |
6bfd98e7 | 4395 | if (wait_proc && wait_proc->raw_status_new) |
6be429b1 | 4396 | update_status (wait_proc); |
6bfd98e7 | 4397 | if (wait_proc |
dd2a17ab KS |
4398 | && ! EQ (wait_proc->status, Qrun) |
4399 | && ! EQ (wait_proc->status, Qconnect)) | |
9aa2a7f4 | 4400 | { |
215b45e9 | 4401 | int nread, total_nread = 0; |
7ce63188 | 4402 | |
9aa2a7f4 | 4403 | clear_waiting_for_input (); |
7ce63188 RS |
4404 | XSETPROCESS (proc, wait_proc); |
4405 | ||
4406 | /* Read data from the process, until we exhaust it. */ | |
60f0fb11 | 4407 | while (wait_proc->infd >= 0) |
215b45e9 | 4408 | { |
60f0fb11 | 4409 | nread = read_process_output (proc, wait_proc->infd); |
e1b37c34 GM |
4410 | |
4411 | if (nread == 0) | |
4412 | break; | |
4413 | ||
63136da6 AS |
4414 | if (0 < nread) |
4415 | { | |
891bd142 SM |
4416 | total_nread += nread; |
4417 | got_some_input = 1; | |
4418 | } | |
215b45e9 RS |
4419 | #ifdef EIO |
4420 | else if (nread == -1 && EIO == errno) | |
63136da6 | 4421 | break; |
e1b37c34 GM |
4422 | #endif |
4423 | #ifdef EAGAIN | |
4424 | else if (nread == -1 && EAGAIN == errno) | |
63136da6 | 4425 | break; |
e1b37c34 GM |
4426 | #endif |
4427 | #ifdef EWOULDBLOCK | |
4428 | else if (nread == -1 && EWOULDBLOCK == errno) | |
63136da6 | 4429 | break; |
215b45e9 RS |
4430 | #endif |
4431 | } | |
7ce63188 | 4432 | if (total_nread > 0 && do_display) |
3007ebfb | 4433 | redisplay_preserve_echo_area (10); |
7ce63188 | 4434 | |
9aa2a7f4 JB |
4435 | break; |
4436 | } | |
6be429b1 | 4437 | |
d0d6b7c5 JB |
4438 | /* Wait till there is something to do */ |
4439 | ||
b89a415a | 4440 | if (wait_proc && just_wait_proc) |
107ed38d | 4441 | { |
60f0fb11 | 4442 | if (wait_proc->infd < 0) /* Terminated */ |
b89a415a | 4443 | break; |
60f0fb11 | 4444 | FD_SET (wait_proc->infd, &Available); |
bad49fc7 | 4445 | check_delay = 0; |
3fad2ad2 | 4446 | check_write = 0; |
107ed38d KS |
4447 | } |
4448 | else if (!NILP (wait_for_cell)) | |
dd2a17ab KS |
4449 | { |
4450 | Available = non_process_wait_mask; | |
bad49fc7 | 4451 | check_delay = 0; |
3fad2ad2 | 4452 | check_write = 0; |
dd2a17ab | 4453 | } |
a69281ff | 4454 | else |
dd2a17ab | 4455 | { |
b89a415a | 4456 | if (! read_kbd) |
dd2a17ab KS |
4457 | Available = non_keyboard_wait_mask; |
4458 | else | |
4459 | Available = input_wait_mask; | |
3fad2ad2 | 4460 | Writeok = write_mask; |
82d6e50b J |
4461 | #ifdef SELECT_CANT_DO_WRITE_MASK |
4462 | check_write = 0; | |
4463 | #else | |
3fad2ad2 | 4464 | check_write = 1; |
82d6e50b | 4465 | #endif |
6b61353c | 4466 | check_delay = wait_channel >= 0 ? 0 : process_output_delay_count; |
dd2a17ab | 4467 | } |
d0d6b7c5 | 4468 | |
ff11dfa1 | 4469 | /* If frame size has changed or the window is newly mapped, |
ffd56f97 JB |
4470 | redisplay now, before we start to wait. There is a race |
4471 | condition here; if a SIGIO arrives between now and the select | |
016899c0 JB |
4472 | and indicates that a frame is trashed, the select may block |
4473 | displaying a trashed screen. */ | |
5164ee8e | 4474 | if (frame_garbaged && do_display) |
7286affd RS |
4475 | { |
4476 | clear_waiting_for_input (); | |
3007ebfb | 4477 | redisplay_preserve_echo_area (11); |
b89a415a | 4478 | if (read_kbd < 0) |
7efe788e | 4479 | set_waiting_for_input (&timeout); |
7286affd | 4480 | } |
ffd56f97 | 4481 | |
dd2a17ab | 4482 | no_avail = 0; |
b89a415a | 4483 | if (read_kbd && detect_input_pending ()) |
0a65b032 RS |
4484 | { |
4485 | nfds = 0; | |
dd2a17ab | 4486 | no_avail = 1; |
0a65b032 RS |
4487 | } |
4488 | else | |
dd2a17ab | 4489 | { |
6b61353c KH |
4490 | |
4491 | #ifdef ADAPTIVE_READ_BUFFERING | |
db853b7a | 4492 | /* Set the timeout for adaptive read buffering if any |
60f0fb11 | 4493 | process has non-zero read_output_skip and non-zero |
db853b7a KS |
4494 | read_output_delay, and we are not reading output for a |
4495 | specific wait_channel. It is not executed if | |
4496 | Vprocess_adaptive_read_buffering is nil. */ | |
6b61353c KH |
4497 | if (process_output_skip && check_delay > 0) |
4498 | { | |
4499 | int usecs = EMACS_USECS (timeout); | |
4500 | if (EMACS_SECS (timeout) > 0 || usecs > READ_OUTPUT_DELAY_MAX) | |
4501 | usecs = READ_OUTPUT_DELAY_MAX; | |
4502 | for (channel = 0; check_delay > 0 && channel <= max_process_desc; channel++) | |
4503 | { | |
4504 | proc = chan_process[channel]; | |
4505 | if (NILP (proc)) | |
4506 | continue; | |
db853b7a | 4507 | /* Find minimum non-zero read_output_delay among the |
60f0fb11 SM |
4508 | processes with non-zero read_output_skip. */ |
4509 | if (XPROCESS (proc)->read_output_delay > 0) | |
6b61353c KH |
4510 | { |
4511 | check_delay--; | |
60f0fb11 | 4512 | if (!XPROCESS (proc)->read_output_skip) |
6b61353c KH |
4513 | continue; |
4514 | FD_CLR (channel, &Available); | |
60f0fb11 SM |
4515 | XPROCESS (proc)->read_output_skip = 0; |
4516 | if (XPROCESS (proc)->read_output_delay < usecs) | |
4517 | usecs = XPROCESS (proc)->read_output_delay; | |
6b61353c KH |
4518 | } |
4519 | } | |
4520 | EMACS_SET_SECS_USECS (timeout, 0, usecs); | |
4521 | process_output_skip = 0; | |
4522 | } | |
4523 | #endif | |
872870b2 JD |
4524 | #if defined (USE_GTK) || defined (HAVE_GCONF) |
4525 | nfds = xg_select | |
4526 | #elif defined (HAVE_NS) | |
63136da6 | 4527 | nfds = ns_select |
edfda783 | 4528 | #else |
63136da6 | 4529 | nfds = select |
edfda783 | 4530 | #endif |
3fad2ad2 J |
4531 | (max (max_process_desc, max_input_desc) + 1, |
4532 | &Available, | |
4533 | (check_write ? &Writeok : (SELECT_TYPE *)0), | |
4534 | (SELECT_TYPE *)0, &timeout); | |
e061a11b TZ |
4535 | |
4536 | #ifdef HAVE_GNUTLS | |
4537 | /* GnuTLS buffers data internally. In lowat mode it leaves | |
4538 | some data in the TCP buffers so that select works, but | |
4539 | with custom pull/push functions we need to check if some | |
4540 | data is available in the buffers manually. */ | |
8727937b | 4541 | if (nfds == 0 && |
e061a11b TZ |
4542 | wait_proc && wait_proc->gnutls_p /* Check for valid process. */ |
4543 | /* Do we have pending data? */ | |
0898ca10 | 4544 | && emacs_gnutls_record_check_pending (wait_proc->gnutls_state) > 0) |
e061a11b TZ |
4545 | { |
4546 | nfds = 1; | |
4547 | /* Set to Available. */ | |
4548 | FD_SET (wait_proc->infd, &Available); | |
4549 | } | |
4550 | #endif | |
dd2a17ab | 4551 | } |
6720a7fb | 4552 | |
d0d6b7c5 JB |
4553 | xerrno = errno; |
4554 | ||
4555 | /* Make C-g and alarm signals set flags again */ | |
4556 | clear_waiting_for_input (); | |
4557 | ||
4558 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 4559 | do_pending_window_change (0); |
d0d6b7c5 | 4560 | |
c0239a0b RS |
4561 | if (time_limit && nfds == 0 && ! timeout_reduced_for_timers) |
4562 | /* We wanted the full specified time, so return now. */ | |
d0d6b7c5 JB |
4563 | break; |
4564 | if (nfds < 0) | |
4565 | { | |
4566 | if (xerrno == EINTR) | |
dd2a17ab | 4567 | no_avail = 1; |
d0d6b7c5 JB |
4568 | else if (xerrno == EBADF) |
4569 | { | |
4570 | #ifdef AIX | |
4571 | /* AIX doesn't handle PTY closure the same way BSD does. On AIX, | |
4572 | the child's closure of the pts gives the parent a SIGHUP, and | |
4573 | the ptc file descriptor is automatically closed, | |
4574 | yielding EBADF here or at select() call above. | |
4575 | So, SIGHUP is ignored (see def of PTY_TTY_NAME_SPRINTF | |
a0e4d3f3 | 4576 | in m/ibmrt-aix.h), and here we just ignore the select error. |
d0d6b7c5 | 4577 | Cleanup occurs c/o status_notify after SIGCLD. */ |
dd2a17ab | 4578 | no_avail = 1; /* Cannot depend on values returned */ |
d0d6b7c5 JB |
4579 | #else |
4580 | abort (); | |
4581 | #endif | |
4582 | } | |
4583 | else | |
68c45bf0 | 4584 | error ("select error: %s", emacs_strerror (xerrno)); |
d0d6b7c5 | 4585 | } |
dd2a17ab KS |
4586 | |
4587 | if (no_avail) | |
4588 | { | |
4589 | FD_ZERO (&Available); | |
3fad2ad2 | 4590 | check_write = 0; |
dd2a17ab KS |
4591 | } |
4592 | ||
5d5beb62 RS |
4593 | #if 0 /* When polling is used, interrupt_input is 0, |
4594 | so get_input_pending should read the input. | |
4595 | So this should not be needed. */ | |
4596 | /* If we are using polling for input, | |
4597 | and we see input available, make it get read now. | |
4598 | Otherwise it might not actually get read for a second. | |
214d6069 | 4599 | And on hpux, since we turn off polling in wait_reading_process_output, |
5d5beb62 | 4600 | it might never get read at all if we don't spend much time |
214d6069 | 4601 | outside of wait_reading_process_output. */ |
b89a415a | 4602 | if (read_kbd && interrupt_input |
5d5beb62 RS |
4603 | && keyboard_bit_set (&Available) |
4604 | && input_polling_used ()) | |
4605 | kill (getpid (), SIGALRM); | |
4606 | #endif | |
4607 | ||
d0d6b7c5 JB |
4608 | /* Check for keyboard input */ |
4609 | /* If there is any, return immediately | |
4610 | to give it higher priority than subprocesses */ | |
4611 | ||
b89a415a | 4612 | if (read_kbd != 0) |
6ed6233b | 4613 | { |
a2fab450 | 4614 | int old_timers_run = timers_run; |
c88164fe | 4615 | struct buffer *old_buffer = current_buffer; |
c0323133 | 4616 | Lisp_Object old_window = selected_window; |
a2fab450 | 4617 | int leave = 0; |
177c0ea7 | 4618 | |
5d6c2aa3 | 4619 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 GM |
4620 | { |
4621 | swallow_events (do_display); | |
4622 | if (detect_input_pending_run_timers (do_display)) | |
4623 | leave = 1; | |
4624 | } | |
6ed6233b | 4625 | |
a2fab450 GM |
4626 | /* If a timer has run, this might have changed buffers |
4627 | an alike. Make read_key_sequence aware of that. */ | |
4628 | if (timers_run != old_timers_run | |
c88164fe | 4629 | && waiting_for_user_input_p == -1 |
c0323133 GM |
4630 | && (old_buffer != current_buffer |
4631 | || !EQ (old_window, selected_window))) | |
a2fab450 GM |
4632 | record_asynch_buffer_change (); |
4633 | ||
4634 | if (leave) | |
4635 | break; | |
177c0ea7 JB |
4636 | } |
4637 | ||
69645afc | 4638 | /* If there is unread keyboard input, also return. */ |
b89a415a | 4639 | if (read_kbd != 0 |
69645afc RS |
4640 | && requeued_events_pending_p ()) |
4641 | break; | |
4642 | ||
77e1b3d4 RS |
4643 | /* If we are not checking for keyboard input now, |
4644 | do process events (but don't run any timers). | |
4645 | This is so that X events will be processed. | |
0c9960e9 | 4646 | Otherwise they may have to wait until polling takes place. |
77e1b3d4 RS |
4647 | That would causes delays in pasting selections, for example. |
4648 | ||
4649 | (We used to do this only if wait_for_cell.) */ | |
b89a415a | 4650 | if (read_kbd == 0 && detect_input_pending ()) |
f854a00b RS |
4651 | { |
4652 | swallow_events (do_display); | |
0c9960e9 | 4653 | #if 0 /* Exiting when read_kbd doesn't request that seems wrong, though. */ |
f854a00b RS |
4654 | if (detect_input_pending ()) |
4655 | break; | |
5d5beb62 | 4656 | #endif |
0c9960e9 | 4657 | } |
f854a00b | 4658 | |
84aa3ace | 4659 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 4660 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
84aa3ace RS |
4661 | break; |
4662 | ||
4746118a | 4663 | #ifdef SIGIO |
5d5beb62 | 4664 | /* If we think we have keyboard input waiting, but didn't get SIGIO, |
d0d6b7c5 JB |
4665 | go read it. This can happen with X on BSD after logging out. |
4666 | In that case, there really is no input and no SIGIO, | |
4667 | but select says there is input. */ | |
4668 | ||
b89a415a | 4669 | if (read_kbd && interrupt_input |
2601f59e | 4670 | && keyboard_bit_set (&Available) && ! noninteractive) |
e643c5be | 4671 | kill (getpid (), SIGIO); |
4746118a | 4672 | #endif |
d0d6b7c5 | 4673 | |
d0d6b7c5 JB |
4674 | if (! wait_proc) |
4675 | got_some_input |= nfds > 0; | |
4676 | ||
32676c08 JB |
4677 | /* If checking input just got us a size-change event from X, |
4678 | obey it now if we should. */ | |
b89a415a | 4679 | if (read_kbd || ! NILP (wait_for_cell)) |
2b653806 | 4680 | do_pending_window_change (0); |
32676c08 | 4681 | |
a9f2c884 | 4682 | /* Check for data from a process. */ |
dd2a17ab KS |
4683 | if (no_avail || nfds == 0) |
4684 | continue; | |
4685 | ||
3fad2ad2 J |
4686 | for (channel = 0; channel <= max_input_desc; ++channel) |
4687 | { | |
4688 | struct fd_callback_data *d = &fd_callback_info[channel]; | |
4689 | if (FD_ISSET (channel, &Available) | |
4690 | && d->func != 0 | |
4691 | && (d->condition & FOR_READ) != 0) | |
4692 | d->func (channel, d->data, 1); | |
4693 | if (FD_ISSET (channel, &write_mask) | |
4694 | && d->func != 0 | |
4695 | && (d->condition & FOR_WRITE) != 0) | |
4696 | d->func (channel, d->data, 0); | |
4697 | } | |
4698 | ||
a69281ff | 4699 | for (channel = 0; channel <= max_process_desc; channel++) |
d0d6b7c5 | 4700 | { |
a69281ff | 4701 | if (FD_ISSET (channel, &Available) |
3fad2ad2 J |
4702 | && FD_ISSET (channel, &non_keyboard_wait_mask) |
4703 | && !FD_ISSET (channel, &non_process_wait_mask)) | |
d0d6b7c5 JB |
4704 | { |
4705 | int nread; | |
4706 | ||
4707 | /* If waiting for this channel, arrange to return as | |
4708 | soon as no more input to be processed. No more | |
4709 | waiting. */ | |
4710 | if (wait_channel == channel) | |
4711 | { | |
a9f2c884 | 4712 | wait_channel = -1; |
d0d6b7c5 JB |
4713 | time_limit = -1; |
4714 | got_some_input = 1; | |
4715 | } | |
4716 | proc = chan_process[channel]; | |
4717 | if (NILP (proc)) | |
4718 | continue; | |
4719 | ||
e690ca94 KS |
4720 | /* If this is a server stream socket, accept connection. */ |
4721 | if (EQ (XPROCESS (proc)->status, Qlisten)) | |
4722 | { | |
4723 | server_accept_connection (proc, channel); | |
4724 | continue; | |
4725 | } | |
4726 | ||
d0d6b7c5 JB |
4727 | /* Read data from the process, starting with our |
4728 | buffered-ahead character if we have one. */ | |
4729 | ||
4730 | nread = read_process_output (proc, channel); | |
4731 | if (nread > 0) | |
4732 | { | |
4733 | /* Since read_process_output can run a filter, | |
4734 | which can call accept-process-output, | |
4735 | don't try to read from any other processes | |
4736 | before doing the select again. */ | |
4737 | FD_ZERO (&Available); | |
4738 | ||
4739 | if (do_display) | |
3007ebfb | 4740 | redisplay_preserve_echo_area (12); |
d0d6b7c5 JB |
4741 | } |
4742 | #ifdef EWOULDBLOCK | |
4743 | else if (nread == -1 && errno == EWOULDBLOCK) | |
4744 | ; | |
0b75e9a4 | 4745 | #endif |
89d7280d RS |
4746 | /* ISC 4.1 defines both EWOULDBLOCK and O_NONBLOCK, |
4747 | and Emacs uses O_NONBLOCK, so what we get is EAGAIN. */ | |
d0d6b7c5 JB |
4748 | #ifdef O_NONBLOCK |
4749 | else if (nread == -1 && errno == EAGAIN) | |
4750 | ; | |
4751 | #else | |
4752 | #ifdef O_NDELAY | |
4753 | else if (nread == -1 && errno == EAGAIN) | |
4754 | ; | |
4755 | /* Note that we cannot distinguish between no input | |
4756 | available now and a closed pipe. | |
4757 | With luck, a closed pipe will be accompanied by | |
4758 | subprocess termination and SIGCHLD. */ | |
d888760c | 4759 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 | 4760 | ; |
4740825c KS |
4761 | #endif /* O_NDELAY */ |
4762 | #endif /* O_NONBLOCK */ | |
d0d6b7c5 JB |
4763 | #ifdef HAVE_PTYS |
4764 | /* On some OSs with ptys, when the process on one end of | |
4765 | a pty exits, the other end gets an error reading with | |
4766 | errno = EIO instead of getting an EOF (0 bytes read). | |
4767 | Therefore, if we get an error reading and errno = | |
4768 | EIO, just continue, because the child process has | |
4769 | exited and should clean itself up soon (e.g. when we | |
5651af6d RS |
4770 | get a SIGCHLD). |
4771 | ||
4772 | However, it has been known to happen that the SIGCHLD | |
4740825c | 4773 | got lost. So raise the signal again just in case. |
5651af6d | 4774 | It can't hurt. */ |
d0d6b7c5 | 4775 | else if (nread == -1 && errno == EIO) |
4740825c | 4776 | { |
a70d5371 | 4777 | /* Clear the descriptor now, so we only raise the |
42371deb | 4778 | signal once. Don't do this if `process' is only |
a70d5371 NR |
4779 | a pty. */ |
4780 | if (XPROCESS (proc)->pid != -2) | |
4781 | { | |
4782 | FD_CLR (channel, &input_wait_mask); | |
4783 | FD_CLR (channel, &non_keyboard_wait_mask); | |
4740825c | 4784 | |
a70d5371 NR |
4785 | kill (getpid (), SIGCHLD); |
4786 | } | |
4740825c KS |
4787 | } |
4788 | #endif /* HAVE_PTYS */ | |
ffd56f97 JB |
4789 | /* If we can detect process termination, don't consider the process |
4790 | gone just because its pipe is closed. */ | |
d0d6b7c5 | 4791 | #ifdef SIGCHLD |
d888760c | 4792 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 JB |
4793 | ; |
4794 | #endif | |
4795 | else | |
4796 | { | |
4797 | /* Preserve status of processes already terminated. */ | |
60f0fb11 | 4798 | XPROCESS (proc)->tick = ++process_tick; |
d0d6b7c5 | 4799 | deactivate_process (proc); |
6bfd98e7 | 4800 | if (XPROCESS (proc)->raw_status_new) |
d0d6b7c5 JB |
4801 | update_status (XPROCESS (proc)); |
4802 | if (EQ (XPROCESS (proc)->status, Qrun)) | |
4803 | XPROCESS (proc)->status | |
4804 | = Fcons (Qexit, Fcons (make_number (256), Qnil)); | |
4805 | } | |
4806 | } | |
177c0ea7 | 4807 | #ifdef NON_BLOCKING_CONNECT |
3fad2ad2 | 4808 | if (FD_ISSET (channel, &Writeok) |
1566f511 | 4809 | && FD_ISSET (channel, &connect_wait_mask)) |
dd2a17ab KS |
4810 | { |
4811 | struct Lisp_Process *p; | |
dd2a17ab KS |
4812 | |
4813 | FD_CLR (channel, &connect_wait_mask); | |
d8a4b27a | 4814 | FD_CLR (channel, &write_mask); |
dd2a17ab KS |
4815 | if (--num_pending_connects < 0) |
4816 | abort (); | |
4817 | ||
4818 | proc = chan_process[channel]; | |
4819 | if (NILP (proc)) | |
4820 | continue; | |
4821 | ||
4822 | p = XPROCESS (proc); | |
4823 | ||
4824 | #ifdef GNU_LINUX | |
4825 | /* getsockopt(,,SO_ERROR,,) is said to hang on some systems. | |
63136da6 | 4826 | So only use it on systems where it is known to work. */ |
dd2a17ab | 4827 | { |
401bf9b4 | 4828 | socklen_t xlen = sizeof (xerrno); |
ed3751c8 | 4829 | if (getsockopt (channel, SOL_SOCKET, SO_ERROR, &xerrno, &xlen)) |
dd2a17ab KS |
4830 | xerrno = errno; |
4831 | } | |
4832 | #else | |
44c887be PJ |
4833 | { |
4834 | struct sockaddr pname; | |
ed3751c8 | 4835 | int pnamelen = sizeof (pname); |
44c887be PJ |
4836 | |
4837 | /* If connection failed, getpeername will fail. */ | |
4838 | xerrno = 0; | |
ed3751c8 | 4839 | if (getpeername (channel, &pname, &pnamelen) < 0) |
44c887be PJ |
4840 | { |
4841 | /* Obtain connect failure code through error slippage. */ | |
4842 | char dummy; | |
dd2a17ab | 4843 | xerrno = errno; |
ed3751c8 | 4844 | if (errno == ENOTCONN && read (channel, &dummy, 1) < 0) |
44c887be PJ |
4845 | xerrno = errno; |
4846 | } | |
4847 | } | |
dd2a17ab KS |
4848 | #endif |
4849 | if (xerrno) | |
4850 | { | |
60f0fb11 | 4851 | p->tick = ++process_tick; |
dd2a17ab KS |
4852 | p->status = Fcons (Qfailed, Fcons (make_number (xerrno), Qnil)); |
4853 | deactivate_process (proc); | |
4854 | } | |
4855 | else | |
4856 | { | |
4857 | p->status = Qrun; | |
4858 | /* Execute the sentinel here. If we had relied on | |
4859 | status_notify to do it later, it will read input | |
4860 | from the process before calling the sentinel. */ | |
4861 | exec_sentinel (proc, build_string ("open\n")); | |
e690ca94 | 4862 | if (!EQ (p->filter, Qt) && !EQ (p->command, Qt)) |
dd2a17ab | 4863 | { |
60f0fb11 SM |
4864 | FD_SET (p->infd, &input_wait_mask); |
4865 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
dd2a17ab KS |
4866 | } |
4867 | } | |
4868 | } | |
4869 | #endif /* NON_BLOCKING_CONNECT */ | |
ffd56f97 JB |
4870 | } /* end for each file descriptor */ |
4871 | } /* end while exit conditions not met */ | |
d0d6b7c5 | 4872 | |
2beb96f9 | 4873 | unbind_to (count, Qnil); |
d430ee71 | 4874 | |
ffd56f97 JB |
4875 | /* If calling from keyboard input, do not quit |
4876 | since we want to return C-g as an input character. | |
4877 | Otherwise, do pending quit if requested. */ | |
b89a415a | 4878 | if (read_kbd >= 0) |
ffd56f97 JB |
4879 | { |
4880 | /* Prevent input_pending from remaining set if we quit. */ | |
4881 | clear_input_pending (); | |
4882 | QUIT; | |
4883 | } | |
efa2a55c | 4884 | |
d0d6b7c5 JB |
4885 | return got_some_input; |
4886 | } | |
4887 | \f | |
3b9a3dfa RS |
4888 | /* Given a list (FUNCTION ARGS...), apply FUNCTION to the ARGS. */ |
4889 | ||
4890 | static Lisp_Object | |
d3da34e0 | 4891 | read_process_output_call (Lisp_Object fun_and_args) |
3b9a3dfa | 4892 | { |
70949dac | 4893 | return apply1 (XCAR (fun_and_args), XCDR (fun_and_args)); |
3b9a3dfa RS |
4894 | } |
4895 | ||
4896 | static Lisp_Object | |
b93aacde | 4897 | read_process_output_error_handler (Lisp_Object error_val) |
3b9a3dfa | 4898 | { |
b93aacde | 4899 | cmd_error_internal (error_val, "error in process filter: "); |
3b9a3dfa RS |
4900 | Vinhibit_quit = Qt; |
4901 | update_echo_area (); | |
833ba342 | 4902 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 4903 | return Qt; |
3b9a3dfa RS |
4904 | } |
4905 | ||
d0d6b7c5 JB |
4906 | /* Read pending output from the process channel, |
4907 | starting with our buffered-ahead character if we have one. | |
0fa1789e | 4908 | Yield number of decoded characters read. |
d0d6b7c5 | 4909 | |
116c423c | 4910 | This function reads at most 4096 characters. |
d0d6b7c5 | 4911 | If you want to read all available subprocess output, |
0fa1789e KH |
4912 | you must call it repeatedly until it returns zero. |
4913 | ||
4914 | The characters read are decoded according to PROC's coding-system | |
4915 | for decoding. */ | |
d0d6b7c5 | 4916 | |
ff6daed3 | 4917 | static int |
d3da34e0 | 4918 | read_process_output (Lisp_Object proc, register int channel) |
d0d6b7c5 | 4919 | { |
368f4090 | 4920 | register ssize_t nbytes; |
d0d6b7c5 | 4921 | char *chars; |
d0d6b7c5 | 4922 | register Lisp_Object outstream; |
d0d6b7c5 | 4923 | register struct Lisp_Process *p = XPROCESS (proc); |
f877c546 | 4924 | register EMACS_INT opoint; |
c7580538 | 4925 | struct coding_system *coding = proc_decode_coding_system[channel]; |
60f0fb11 | 4926 | int carryover = p->decoding_carryover; |
116c423c | 4927 | int readmax = 4096; |
3a4fa2f2 SM |
4928 | int count = SPECPDL_INDEX (); |
4929 | Lisp_Object odeactivate; | |
d0d6b7c5 | 4930 | |
e690ca94 | 4931 | chars = (char *) alloca (carryover + readmax); |
e7fbaa65 KH |
4932 | if (carryover) |
4933 | /* See the comment above. */ | |
72af86bd | 4934 | memcpy (chars, SDATA (p->decoding_buf), carryover); |
0fa1789e | 4935 | |
e690ca94 KS |
4936 | #ifdef DATAGRAM_SOCKETS |
4937 | /* We have a working select, so proc_buffered_char is always -1. */ | |
4938 | if (DATAGRAM_CHAN_P (channel)) | |
4939 | { | |
401bf9b4 | 4940 | socklen_t len = datagram_address[channel].len; |
39b1da20 | 4941 | nbytes = recvfrom (channel, chars + carryover, readmax, |
e690ca94 KS |
4942 | 0, datagram_address[channel].sa, &len); |
4943 | } | |
4944 | else | |
4945 | #endif | |
6b61353c | 4946 | { |
82eaa333 PE |
4947 | int buffered = 0 <= proc_buffered_char[channel]; |
4948 | if (buffered) | |
4949 | { | |
4950 | chars[carryover] = proc_buffered_char[channel]; | |
4951 | proc_buffered_char[channel] = -1; | |
4952 | } | |
8af55556 | 4953 | #ifdef HAVE_GNUTLS |
df7fcaff | 4954 | if (XPROCESS (proc)->gnutls_p) |
e968f4f3 | 4955 | nbytes = emacs_gnutls_read (XPROCESS (proc), |
82eaa333 PE |
4956 | chars + carryover + buffered, |
4957 | readmax - buffered); | |
8af55556 TZ |
4958 | else |
4959 | #endif | |
82eaa333 PE |
4960 | nbytes = emacs_read (channel, chars + carryover + buffered, |
4961 | readmax - buffered); | |
6b61353c | 4962 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 4963 | if (nbytes > 0 && p->adaptive_read_buffering) |
6b61353c | 4964 | { |
60f0fb11 | 4965 | int delay = p->read_output_delay; |
6b61353c KH |
4966 | if (nbytes < 256) |
4967 | { | |
4968 | if (delay < READ_OUTPUT_DELAY_MAX_MAX) | |
4969 | { | |
4970 | if (delay == 0) | |
4971 | process_output_delay_count++; | |
4972 | delay += READ_OUTPUT_DELAY_INCREMENT * 2; | |
4973 | } | |
4974 | } | |
82eaa333 | 4975 | else if (delay > 0 && nbytes == readmax - buffered) |
6b61353c KH |
4976 | { |
4977 | delay -= READ_OUTPUT_DELAY_INCREMENT; | |
4978 | if (delay == 0) | |
4979 | process_output_delay_count--; | |
4980 | } | |
60f0fb11 | 4981 | p->read_output_delay = delay; |
6b61353c KH |
4982 | if (delay) |
4983 | { | |
60f0fb11 | 4984 | p->read_output_skip = 1; |
6b61353c KH |
4985 | process_output_skip = 1; |
4986 | } | |
4987 | } | |
4988 | #endif | |
fe07cdfa PE |
4989 | nbytes += buffered; |
4990 | nbytes += buffered && nbytes <= 0; | |
d0d6b7c5 | 4991 | } |
d0d6b7c5 | 4992 | |
60f0fb11 | 4993 | p->decoding_carryover = 0; |
ca65341e | 4994 | |
ed7a4b2d | 4995 | /* At this point, NBYTES holds number of bytes just received |
0fa1789e | 4996 | (including the one in proc_buffered_char[channel]). */ |
de7fbd09 KH |
4997 | if (nbytes <= 0) |
4998 | { | |
4999 | if (nbytes < 0 || coding->mode & CODING_MODE_LAST_BLOCK) | |
5000 | return nbytes; | |
5001 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
5002 | } | |
d0d6b7c5 | 5003 | |
1d2fc612 | 5004 | /* Now set NBYTES how many bytes we must decode. */ |
e7fbaa65 | 5005 | nbytes += carryover; |
0fa1789e | 5006 | |
3a4fa2f2 SM |
5007 | odeactivate = Vdeactivate_mark; |
5008 | /* There's no good reason to let process filters change the current | |
5009 | buffer, and many callers of accept-process-output, sit-for, and | |
5010 | friends don't expect current-buffer to be changed from under them. */ | |
d2630aef | 5011 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
3a4fa2f2 | 5012 | |
1d2fc612 | 5013 | /* Read and dispose of the process output. */ |
d0d6b7c5 JB |
5014 | outstream = p->filter; |
5015 | if (!NILP (outstream)) | |
5016 | { | |
1d2fc612 | 5017 | Lisp_Object text; |
4da2f5be | 5018 | int outer_running_asynch_code = running_asynch_code; |
bbce7d72 | 5019 | int waiting = waiting_for_user_input_p; |
30c78175 | 5020 | |
dfc21838 RS |
5021 | /* No need to gcpro these, because all we do with them later |
5022 | is test them for EQness, and none of them should be a string. */ | |
aba7731a PE |
5023 | #if 0 |
5024 | Lisp_Object obuffer, okeymap; | |
dfc21838 | 5025 | XSETBUFFER (obuffer, current_buffer); |
4b4deea2 | 5026 | okeymap = BVAR (current_buffer, keymap); |
aba7731a | 5027 | #endif |
30c78175 | 5028 | |
3a4fa2f2 SM |
5029 | /* We inhibit quit here instead of just catching it so that |
5030 | hitting ^G when a filter happens to be running won't screw | |
5031 | it up. */ | |
d0d6b7c5 | 5032 | specbind (Qinhibit_quit, Qt); |
6545aada | 5033 | specbind (Qlast_nonmenu_event, Qt); |
3b9a3dfa | 5034 | |
4da2f5be RS |
5035 | /* In case we get recursively called, |
5036 | and we already saved the match data nonrecursively, | |
5037 | save the same match data in safely recursive fashion. */ | |
5038 | if (outer_running_asynch_code) | |
5039 | { | |
5040 | Lisp_Object tem; | |
5041 | /* Don't clobber the CURRENT match data, either! */ | |
89f2614d KS |
5042 | tem = Fmatch_data (Qnil, Qnil, Qnil); |
5043 | restore_search_regs (); | |
5044 | record_unwind_save_match_data (); | |
5045 | Fset_match_data (tem, Qt); | |
4da2f5be RS |
5046 | } |
5047 | ||
5048 | /* For speed, if a search happens within this code, | |
5049 | save the match data in a special nonrecursive fashion. */ | |
7074fde6 | 5050 | running_asynch_code = 1; |
4da2f5be | 5051 | |
400a67ff | 5052 | decode_coding_c_string (coding, (unsigned char *) chars, nbytes, Qt); |
5bbf78c1 | 5053 | text = coding->dst_object; |
5bbf78c1 | 5054 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); |
ed7a4b2d | 5055 | /* A new coding system might be found. */ |
5bbf78c1 | 5056 | if (!EQ (p->decode_coding_system, Vlast_coding_system_used)) |
ed7a4b2d | 5057 | { |
5bbf78c1 | 5058 | p->decode_coding_system = Vlast_coding_system_used; |
ed7a4b2d KH |
5059 | |
5060 | /* Don't call setup_coding_system for | |
5061 | proc_decode_coding_system[channel] here. It is done in | |
5062 | detect_coding called via decode_coding above. */ | |
5063 | ||
5064 | /* If a coding system for encoding is not yet decided, we set | |
5065 | it as the same as coding-system for decoding. | |
5066 | ||
5067 | But, before doing that we must check if | |
5068 | proc_encode_coding_system[p->outfd] surely points to a | |
5069 | valid memory because p->outfd will be changed once EOF is | |
5070 | sent to the process. */ | |
5071 | if (NILP (p->encode_coding_system) | |
60f0fb11 | 5072 | && proc_encode_coding_system[p->outfd]) |
ed7a4b2d | 5073 | { |
76d812bb KH |
5074 | p->encode_coding_system |
5075 | = coding_inherit_eol_type (Vlast_coding_system_used, Qnil); | |
5bbf78c1 | 5076 | setup_coding_system (p->encode_coding_system, |
60f0fb11 | 5077 | proc_encode_coding_system[p->outfd]); |
ed7a4b2d KH |
5078 | } |
5079 | } | |
51c6067d | 5080 | |
dd8c7a53 KH |
5081 | if (coding->carryover_bytes > 0) |
5082 | { | |
04961398 KH |
5083 | if (SCHARS (p->decoding_buf) < coding->carryover_bytes) |
5084 | p->decoding_buf = make_uninit_string (coding->carryover_bytes); | |
72af86bd AS |
5085 | memcpy (SDATA (p->decoding_buf), coding->carryover, |
5086 | coding->carryover_bytes); | |
8c406a9b | 5087 | p->decoding_carryover = coding->carryover_bytes; |
dd8c7a53 | 5088 | } |
e430e5ba | 5089 | if (SBYTES (text) > 0) |
dd97db06 KH |
5090 | internal_condition_case_1 (read_process_output_call, |
5091 | Fcons (outstream, | |
5092 | Fcons (proc, Fcons (text, Qnil))), | |
5093 | !NILP (Vdebug_on_error) ? Qnil : Qerror, | |
5094 | read_process_output_error_handler); | |
4da2f5be RS |
5095 | |
5096 | /* If we saved the match data nonrecursively, restore it now. */ | |
89f2614d | 5097 | restore_search_regs (); |
4da2f5be | 5098 | running_asynch_code = outer_running_asynch_code; |
d0d6b7c5 | 5099 | |
bbce7d72 RS |
5100 | /* Restore waiting_for_user_input_p as it was |
5101 | when we were called, in case the filter clobbered it. */ | |
5102 | waiting_for_user_input_p = waiting; | |
5103 | ||
7973cfa8 RS |
5104 | #if 0 /* Call record_asynch_buffer_change unconditionally, |
5105 | because we might have changed minor modes or other things | |
5106 | that affect key bindings. */ | |
dfc21838 RS |
5107 | if (! EQ (Fcurrent_buffer (), obuffer) |
5108 | || ! EQ (current_buffer->keymap, okeymap)) | |
7973cfa8 | 5109 | #endif |
927e08be RS |
5110 | /* But do it only if the caller is actually going to read events. |
5111 | Otherwise there's no need to make him wake up, and it could | |
7157b8fe | 5112 | cause trouble (for example it would make sit_for return). */ |
927e08be RS |
5113 | if (waiting_for_user_input_p == -1) |
5114 | record_asynch_buffer_change (); | |
d0d6b7c5 JB |
5115 | } |
5116 | ||
5117 | /* If no filter, write into buffer if it isn't dead. */ | |
4b4deea2 | 5118 | else if (!NILP (p->buffer) && !NILP (BVAR (XBUFFER (p->buffer), name))) |
d0d6b7c5 | 5119 | { |
b0310da4 | 5120 | Lisp_Object old_read_only; |
f877c546 EZ |
5121 | EMACS_INT old_begv, old_zv; |
5122 | EMACS_INT old_begv_byte, old_zv_byte; | |
5123 | EMACS_INT before, before_byte; | |
5124 | EMACS_INT opoint_byte; | |
ed7a4b2d | 5125 | Lisp_Object text; |
926b7e5e | 5126 | struct buffer *b; |
30c78175 | 5127 | |
d0d6b7c5 | 5128 | Fset_buffer (p->buffer); |
6ec8bbd2 | 5129 | opoint = PT; |
d8a2934e | 5130 | opoint_byte = PT_BYTE; |
4b4deea2 | 5131 | old_read_only = BVAR (current_buffer, read_only); |
12ca5cdf RS |
5132 | old_begv = BEGV; |
5133 | old_zv = ZV; | |
d8a2934e RS |
5134 | old_begv_byte = BEGV_BYTE; |
5135 | old_zv_byte = ZV_BYTE; | |
b0310da4 | 5136 | |
4b4deea2 | 5137 | BVAR (current_buffer, read_only) = Qnil; |
d0d6b7c5 JB |
5138 | |
5139 | /* Insert new output into buffer | |
5140 | at the current end-of-output marker, | |
5141 | thus preserving logical ordering of input and output. */ | |
5142 | if (XMARKER (p->mark)->buffer) | |
d8a2934e RS |
5143 | SET_PT_BOTH (clip_to_bounds (BEGV, marker_position (p->mark), ZV), |
5144 | clip_to_bounds (BEGV_BYTE, marker_byte_position (p->mark), | |
5145 | ZV_BYTE)); | |
d0d6b7c5 | 5146 | else |
d8a2934e | 5147 | SET_PT_BOTH (ZV, ZV_BYTE); |
12ca5cdf | 5148 | before = PT; |
d8a2934e | 5149 | before_byte = PT_BYTE; |
b0310da4 JB |
5150 | |
5151 | /* If the output marker is outside of the visible region, save | |
5152 | the restriction and widen. */ | |
6ec8bbd2 | 5153 | if (! (BEGV <= PT && PT <= ZV)) |
b0310da4 JB |
5154 | Fwiden (); |
5155 | ||
400a67ff | 5156 | decode_coding_c_string (coding, (unsigned char *) chars, nbytes, Qt); |
5bbf78c1 KH |
5157 | text = coding->dst_object; |
5158 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); | |
ed7a4b2d KH |
5159 | /* A new coding system might be found. See the comment in the |
5160 | similar code in the previous `if' block. */ | |
5bbf78c1 | 5161 | if (!EQ (p->decode_coding_system, Vlast_coding_system_used)) |
ed7a4b2d | 5162 | { |
5bbf78c1 | 5163 | p->decode_coding_system = Vlast_coding_system_used; |
ed7a4b2d | 5164 | if (NILP (p->encode_coding_system) |
60f0fb11 | 5165 | && proc_encode_coding_system[p->outfd]) |
ed7a4b2d | 5166 | { |
76d812bb KH |
5167 | p->encode_coding_system |
5168 | = coding_inherit_eol_type (Vlast_coding_system_used, Qnil); | |
5bbf78c1 | 5169 | setup_coding_system (p->encode_coding_system, |
60f0fb11 | 5170 | proc_encode_coding_system[p->outfd]); |
ed7a4b2d KH |
5171 | } |
5172 | } | |
dd8c7a53 KH |
5173 | if (coding->carryover_bytes > 0) |
5174 | { | |
04961398 KH |
5175 | if (SCHARS (p->decoding_buf) < coding->carryover_bytes) |
5176 | p->decoding_buf = make_uninit_string (coding->carryover_bytes); | |
72af86bd AS |
5177 | memcpy (SDATA (p->decoding_buf), coding->carryover, |
5178 | coding->carryover_bytes); | |
8c406a9b | 5179 | p->decoding_carryover = coding->carryover_bytes; |
dd8c7a53 | 5180 | } |
d69864bf | 5181 | /* Adjust the multibyteness of TEXT to that of the buffer. */ |
4b4deea2 | 5182 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) |
d69864bf KH |
5183 | != ! STRING_MULTIBYTE (text)) |
5184 | text = (STRING_MULTIBYTE (text) | |
57bb5c37 | 5185 | ? Fstring_as_unibyte (text) |
03f04413 | 5186 | : Fstring_to_multibyte (text)); |
57bb5c37 KH |
5187 | /* Insert before markers in case we are inserting where |
5188 | the buffer's mark is, and the user's next command is Meta-y. */ | |
e430e5ba KH |
5189 | insert_from_string_before_markers (text, 0, 0, |
5190 | SCHARS (text), SBYTES (text), 0); | |
0d023da1 | 5191 | |
926b7e5e GM |
5192 | /* Make sure the process marker's position is valid when the |
5193 | process buffer is changed in the signal_after_change above. | |
5194 | W3 is known to do that. */ | |
5195 | if (BUFFERP (p->buffer) | |
5196 | && (b = XBUFFER (p->buffer), b != current_buffer)) | |
5197 | set_marker_both (p->mark, p->buffer, BUF_PT (b), BUF_PT_BYTE (b)); | |
5198 | else | |
5199 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); | |
b0310da4 | 5200 | |
d0d6b7c5 JB |
5201 | update_mode_lines++; |
5202 | ||
12ca5cdf RS |
5203 | /* Make sure opoint and the old restrictions |
5204 | float ahead of any new text just as point would. */ | |
5205 | if (opoint >= before) | |
d8a2934e RS |
5206 | { |
5207 | opoint += PT - before; | |
5208 | opoint_byte += PT_BYTE - before_byte; | |
5209 | } | |
12ca5cdf | 5210 | if (old_begv > before) |
d8a2934e RS |
5211 | { |
5212 | old_begv += PT - before; | |
5213 | old_begv_byte += PT_BYTE - before_byte; | |
5214 | } | |
12ca5cdf | 5215 | if (old_zv >= before) |
d8a2934e RS |
5216 | { |
5217 | old_zv += PT - before; | |
5218 | old_zv_byte += PT_BYTE - before_byte; | |
5219 | } | |
12ca5cdf | 5220 | |
b0310da4 | 5221 | /* If the restriction isn't what it should be, set it. */ |
12ca5cdf RS |
5222 | if (old_begv != BEGV || old_zv != ZV) |
5223 | Fnarrow_to_region (make_number (old_begv), make_number (old_zv)); | |
b0310da4 | 5224 | |
30c78175 | 5225 | |
4b4deea2 | 5226 | BVAR (current_buffer, read_only) = old_read_only; |
d8a2934e | 5227 | SET_PT_BOTH (opoint, opoint_byte); |
d0d6b7c5 | 5228 | } |
3a4fa2f2 SM |
5229 | /* Handling the process output should not deactivate the mark. */ |
5230 | Vdeactivate_mark = odeactivate; | |
5231 | ||
5232 | unbind_to (count, Qnil); | |
1d2fc612 | 5233 | return nbytes; |
d0d6b7c5 | 5234 | } |
d0d6b7c5 JB |
5235 | \f |
5236 | /* Sending data to subprocess */ | |
5237 | ||
40ccffa6 PE |
5238 | static jmp_buf send_process_frame; |
5239 | static Lisp_Object process_sent_to; | |
d0d6b7c5 | 5240 | |
006c5daa PE |
5241 | #ifndef FORWARD_SIGNAL_TO_MAIN_THREAD |
5242 | static void send_process_trap (int) NO_RETURN; | |
5243 | #endif | |
5244 | ||
9af30bdf | 5245 | static void |
d3da34e0 | 5246 | send_process_trap (int ignore) |
d0d6b7c5 | 5247 | { |
333f1b6f | 5248 | SIGNAL_THREAD_CHECK (SIGPIPE); |
c8f44005 | 5249 | sigunblock (sigmask (SIGPIPE)); |
d0d6b7c5 JB |
5250 | longjmp (send_process_frame, 1); |
5251 | } | |
5252 | ||
4556b700 RS |
5253 | /* Send some data to process PROC. |
5254 | BUF is the beginning of the data; LEN is the number of characters. | |
a92e4183 KH |
5255 | OBJECT is the Lisp object that the data comes from. If OBJECT is |
5256 | nil or t, it means that the data comes from C string. | |
0fa1789e | 5257 | |
a92e4183 KH |
5258 | If OBJECT is not nil, the data is encoded by PROC's coding-system |
5259 | for encoding before it is sent. | |
1fb0098c GM |
5260 | |
5261 | This function can evaluate Lisp code and can garbage collect. */ | |
4556b700 | 5262 | |
ff6daed3 | 5263 | static void |
400a67ff | 5264 | send_process (volatile Lisp_Object proc, const char *volatile buf, |
f877c546 | 5265 | volatile EMACS_INT len, volatile Lisp_Object object) |
d0d6b7c5 | 5266 | { |
ecd1f654 | 5267 | /* Use volatile to protect variables from being clobbered by longjmp. */ |
6b61353c | 5268 | struct Lisp_Process *p = XPROCESS (proc); |
368f4090 | 5269 | ssize_t rv; |
0fa1789e | 5270 | struct coding_system *coding; |
347f3cd3 | 5271 | struct gcpro gcpro1; |
9af30bdf | 5272 | void (*volatile old_sigpipe) (int); |
6044e593 | 5273 | |
347f3cd3 | 5274 | GCPRO1 (object); |
d0d6b7c5 | 5275 | |
6bfd98e7 | 5276 | if (p->raw_status_new) |
6b61353c KH |
5277 | update_status (p); |
5278 | if (! EQ (p->status, Qrun)) | |
5279 | error ("Process %s not running", SDATA (p->name)); | |
60f0fb11 | 5280 | if (p->outfd < 0) |
6b61353c | 5281 | error ("Output file descriptor of %s is closed", SDATA (p->name)); |
0fa1789e | 5282 | |
60f0fb11 | 5283 | coding = proc_encode_coding_system[p->outfd]; |
5bbf78c1 | 5284 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); |
486b111b | 5285 | |
ed7a4b2d KH |
5286 | if ((STRINGP (object) && STRING_MULTIBYTE (object)) |
5287 | || (BUFFERP (object) | |
4b4deea2 | 5288 | && !NILP (BVAR (XBUFFER (object), enable_multibyte_characters))) |
a92e4183 | 5289 | || EQ (object, Qt)) |
278bfdd6 | 5290 | { |
fcaf8878 KH |
5291 | p->encode_coding_system |
5292 | = complement_process_encoding_system (p->encode_coding_system); | |
6b61353c | 5293 | if (!EQ (Vlast_coding_system_used, p->encode_coding_system)) |
fcaf8878 KH |
5294 | { |
5295 | /* The coding system for encoding was changed to raw-text | |
5296 | because we sent a unibyte text previously. Now we are | |
5297 | sending a multibyte text, thus we must encode it by the | |
5298 | original coding system specified for the current process. | |
5299 | ||
5300 | Another reason we comming here is that the coding system | |
5301 | was just complemented and new one was returned by | |
5302 | complement_process_encoding_system. */ | |
5303 | setup_coding_system (p->encode_coding_system, coding); | |
5304 | Vlast_coding_system_used = p->encode_coding_system; | |
5305 | } | |
e08bbb84 | 5306 | coding->src_multibyte = 1; |
278bfdd6 KH |
5307 | } |
5308 | else | |
5309 | { | |
a92e4183 KH |
5310 | /* For sending a unibyte text, character code conversion should |
5311 | not take place but EOL conversion should. So, setup raw-text | |
5312 | or one of the subsidiary if we have not yet done it. */ | |
5bbf78c1 | 5313 | if (CODING_REQUIRE_ENCODING (coding)) |
a92e4183 KH |
5314 | { |
5315 | if (CODING_REQUIRE_FLUSHING (coding)) | |
5316 | { | |
5317 | /* But, before changing the coding, we must flush out data. */ | |
5318 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
5319 | send_process (proc, "", 0, Qt); | |
8f924df7 | 5320 | coding->mode &= CODING_MODE_LAST_BLOCK; |
a92e4183 | 5321 | } |
5bbf78c1 KH |
5322 | setup_coding_system (raw_text_coding_system |
5323 | (Vlast_coding_system_used), | |
5324 | coding); | |
e08bbb84 | 5325 | coding->src_multibyte = 0; |
a92e4183 | 5326 | } |
278bfdd6 | 5327 | } |
a4a37e65 KH |
5328 | coding->dst_multibyte = 0; |
5329 | ||
ed7a4b2d | 5330 | if (CODING_REQUIRE_ENCODING (coding)) |
0fa1789e | 5331 | { |
5bbf78c1 | 5332 | coding->dst_object = Qt; |
ed7a4b2d | 5333 | if (BUFFERP (object)) |
0fa1789e | 5334 | { |
f877c546 EZ |
5335 | EMACS_INT from_byte, from, to; |
5336 | EMACS_INT save_pt, save_pt_byte; | |
5bbf78c1 KH |
5337 | struct buffer *cur = current_buffer; |
5338 | ||
5339 | set_buffer_internal (XBUFFER (object)); | |
5340 | save_pt = PT, save_pt_byte = PT_BYTE; | |
5341 | ||
400a67ff | 5342 | from_byte = PTR_BYTE_POS ((unsigned char *) buf); |
5bbf78c1 KH |
5343 | from = BYTE_TO_CHAR (from_byte); |
5344 | to = BYTE_TO_CHAR (from_byte + len); | |
5345 | TEMP_SET_PT_BOTH (from, from_byte); | |
5346 | encode_coding_object (coding, object, from, from_byte, | |
5347 | to, from_byte + len, Qt); | |
5348 | TEMP_SET_PT_BOTH (save_pt, save_pt_byte); | |
5349 | set_buffer_internal (cur); | |
ed7a4b2d KH |
5350 | } |
5351 | else if (STRINGP (object)) | |
5352 | { | |
550c8289 KH |
5353 | encode_coding_object (coding, object, 0, 0, SCHARS (object), |
5354 | SBYTES (object), Qt); | |
0fa1789e | 5355 | } |
5bbf78c1 | 5356 | else |
452294c2 | 5357 | { |
5bbf78c1 KH |
5358 | coding->dst_object = make_unibyte_string (buf, len); |
5359 | coding->produced = len; | |
452294c2 | 5360 | } |
ed7a4b2d | 5361 | |
e7fbaa65 | 5362 | len = coding->produced; |
347f3cd3 | 5363 | object = coding->dst_object; |
400a67ff | 5364 | buf = SSDATA (object); |
0fa1789e | 5365 | } |
d0d6b7c5 | 5366 | |
4556b700 RS |
5367 | if (pty_max_bytes == 0) |
5368 | { | |
5369 | #if defined (HAVE_FPATHCONF) && defined (_PC_MAX_CANON) | |
60f0fb11 | 5370 | pty_max_bytes = fpathconf (p->outfd, _PC_MAX_CANON); |
4556b700 RS |
5371 | if (pty_max_bytes < 0) |
5372 | pty_max_bytes = 250; | |
5373 | #else | |
5374 | pty_max_bytes = 250; | |
5375 | #endif | |
5376 | /* Deduct one, to leave space for the eof. */ | |
5377 | pty_max_bytes--; | |
5378 | } | |
5379 | ||
0daad115 GM |
5380 | /* 2000-09-21: Emacs 20.7, sparc-sun-solaris-2.6, GCC 2.95.2, |
5381 | CFLAGS="-g -O": The value of the parameter `proc' is clobbered | |
5382 | when returning with longjmp despite being declared volatile. */ | |
d0d6b7c5 | 5383 | if (!setjmp (send_process_frame)) |
0daad115 | 5384 | { |
006c5daa PE |
5385 | p = XPROCESS (proc); /* Repair any setjmp clobbering. */ |
5386 | ||
0daad115 GM |
5387 | process_sent_to = proc; |
5388 | while (len > 0) | |
5389 | { | |
f877c546 | 5390 | EMACS_INT this = len; |
93b4f699 | 5391 | |
0daad115 GM |
5392 | /* Send this batch, using one or more write calls. */ |
5393 | while (this > 0) | |
5394 | { | |
85de1881 | 5395 | EMACS_INT written = 0; |
60f0fb11 | 5396 | int outfd = p->outfd; |
9af30bdf | 5397 | old_sigpipe = (void (*) (int)) signal (SIGPIPE, send_process_trap); |
e690ca94 KS |
5398 | #ifdef DATAGRAM_SOCKETS |
5399 | if (DATAGRAM_CHAN_P (outfd)) | |
5400 | { | |
400a67ff | 5401 | rv = sendto (outfd, buf, this, |
e690ca94 KS |
5402 | 0, datagram_address[outfd].sa, |
5403 | datagram_address[outfd].len); | |
273a5f82 PE |
5404 | if (0 <= rv) |
5405 | written = rv; | |
5406 | else if (errno == EMSGSIZE) | |
c8f44005 RS |
5407 | { |
5408 | signal (SIGPIPE, old_sigpipe); | |
5409 | report_file_error ("sending datagram", | |
5410 | Fcons (proc, Qnil)); | |
5411 | } | |
e690ca94 KS |
5412 | } |
5413 | else | |
5414 | #endif | |
6b61353c | 5415 | { |
8af55556 | 5416 | #ifdef HAVE_GNUTLS |
df7fcaff | 5417 | if (XPROCESS (proc)->gnutls_p) |
e968f4f3 JB |
5418 | written = emacs_gnutls_write (XPROCESS (proc), |
5419 | buf, this); | |
8af55556 TZ |
5420 | else |
5421 | #endif | |
273a5f82 | 5422 | written = emacs_write (outfd, buf, this); |
086e8c47 | 5423 | rv = (written ? 0 : -1); |
6b61353c | 5424 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
5425 | if (p->read_output_delay > 0 |
5426 | && p->adaptive_read_buffering == 1) | |
6b61353c | 5427 | { |
60f0fb11 | 5428 | p->read_output_delay = 0; |
6b61353c | 5429 | process_output_delay_count--; |
60f0fb11 | 5430 | p->read_output_skip = 0; |
6b61353c KH |
5431 | } |
5432 | #endif | |
5433 | } | |
0daad115 | 5434 | signal (SIGPIPE, old_sigpipe); |
4556b700 | 5435 | |
0daad115 GM |
5436 | if (rv < 0) |
5437 | { | |
5438 | if (0 | |
d0d6b7c5 | 5439 | #ifdef EWOULDBLOCK |
0daad115 | 5440 | || errno == EWOULDBLOCK |
d0d6b7c5 JB |
5441 | #endif |
5442 | #ifdef EAGAIN | |
0daad115 | 5443 | || errno == EAGAIN |
d0d6b7c5 | 5444 | #endif |
0daad115 | 5445 | ) |
177c0ea7 | 5446 | /* Buffer is full. Wait, accepting input; |
0daad115 GM |
5447 | that may allow the program |
5448 | to finish doing output and read more. */ | |
5449 | { | |
3d6c2543 | 5450 | EMACS_INT offset = 0; |
4556b700 | 5451 | |
3433b6bd | 5452 | #ifdef BROKEN_PTY_READ_AFTER_EAGAIN |
0daad115 GM |
5453 | /* A gross hack to work around a bug in FreeBSD. |
5454 | In the following sequence, read(2) returns | |
5455 | bogus data: | |
5456 | ||
5457 | write(2) 1022 bytes | |
5458 | write(2) 954 bytes, get EAGAIN | |
5459 | read(2) 1024 bytes in process_read_output | |
5460 | read(2) 11 bytes in process_read_output | |
5461 | ||
5462 | That is, read(2) returns more bytes than have | |
5463 | ever been written successfully. The 1033 bytes | |
5464 | read are the 1022 bytes written successfully | |
5465 | after processing (for example with CRs added if | |
5466 | the terminal is set up that way which it is | |
5467 | here). The same bytes will be seen again in a | |
5468 | later read(2), without the CRs. */ | |
177c0ea7 | 5469 | |
0daad115 GM |
5470 | if (errno == EAGAIN) |
5471 | { | |
5472 | int flags = FWRITE; | |
60f0fb11 | 5473 | ioctl (p->outfd, TIOCFLUSH, &flags); |
0daad115 | 5474 | } |
3433b6bd | 5475 | #endif /* BROKEN_PTY_READ_AFTER_EAGAIN */ |
177c0ea7 | 5476 | |
0daad115 GM |
5477 | /* Running filters might relocate buffers or strings. |
5478 | Arrange to relocate BUF. */ | |
347f3cd3 | 5479 | if (BUFFERP (object)) |
400a67ff PE |
5480 | offset = BUF_PTR_BYTE_POS (XBUFFER (object), |
5481 | (unsigned char *) buf); | |
0daad115 | 5482 | else if (STRINGP (object)) |
400a67ff | 5483 | offset = buf - SSDATA (object); |
0daad115 | 5484 | |
f3e6605c | 5485 | #ifdef EMACS_HAS_USECS |
214d6069 | 5486 | wait_reading_process_output (0, 20000, 0, 0, Qnil, NULL, 0); |
f3e6605c | 5487 | #else |
214d6069 | 5488 | wait_reading_process_output (1, 0, 0, 0, Qnil, NULL, 0); |
f3e6605c | 5489 | #endif |
4556b700 | 5490 | |
347f3cd3 | 5491 | if (BUFFERP (object)) |
400a67ff PE |
5492 | buf = (char *) BUF_BYTE_ADDRESS (XBUFFER (object), |
5493 | offset); | |
0daad115 | 5494 | else if (STRINGP (object)) |
400a67ff | 5495 | buf = offset + SSDATA (object); |
0daad115 GM |
5496 | } |
5497 | else | |
5498 | /* This is a real error. */ | |
5499 | report_file_error ("writing to process", Fcons (proc, Qnil)); | |
5500 | } | |
273a5f82 PE |
5501 | buf += written; |
5502 | len -= written; | |
5503 | this -= written; | |
0daad115 | 5504 | } |
0daad115 GM |
5505 | } |
5506 | } | |
d0d6b7c5 JB |
5507 | else |
5508 | { | |
0ff69270 | 5509 | signal (SIGPIPE, old_sigpipe); |
0daad115 | 5510 | proc = process_sent_to; |
6b61353c | 5511 | p = XPROCESS (proc); |
6bfd98e7 | 5512 | p->raw_status_new = 0; |
6b61353c | 5513 | p->status = Fcons (Qexit, Fcons (make_number (256), Qnil)); |
60f0fb11 | 5514 | p->tick = ++process_tick; |
d0d6b7c5 | 5515 | deactivate_process (proc); |
6b61353c | 5516 | error ("SIGPIPE raised on process %s; closed it", SDATA (p->name)); |
d0d6b7c5 | 5517 | } |
6044e593 RS |
5518 | |
5519 | UNGCPRO; | |
d0d6b7c5 JB |
5520 | } |
5521 | ||
5522 | DEFUN ("process-send-region", Fprocess_send_region, Sprocess_send_region, | |
fdb82f93 PJ |
5523 | 3, 3, 0, |
5524 | doc: /* Send current contents of region as input to PROCESS. | |
5525 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5526 | nil, indicating the current buffer's process. | |
5527 | Called from program, takes three arguments, PROCESS, START and END. | |
5528 | If the region is more than 500 characters long, | |
5529 | it is sent in several bunches. This may happen even for shorter regions. | |
5530 | Output from processes can arrive in between bunches. */) | |
5842a27b | 5531 | (Lisp_Object process, Lisp_Object start, Lisp_Object end) |
d0d6b7c5 JB |
5532 | { |
5533 | Lisp_Object proc; | |
f877c546 | 5534 | EMACS_INT start1, end1; |
d0d6b7c5 JB |
5535 | |
5536 | proc = get_process (process); | |
5537 | validate_region (&start, &end); | |
1b234f64 KH |
5538 | |
5539 | if (XINT (start) < GPT && XINT (end) > GPT) | |
5540 | move_gap (XINT (start)); | |
5541 | ||
5542 | start1 = CHAR_TO_BYTE (XINT (start)); | |
5543 | end1 = CHAR_TO_BYTE (XINT (end)); | |
400a67ff | 5544 | send_process (proc, (char *) BYTE_POS_ADDR (start1), end1 - start1, |
1b234f64 KH |
5545 | Fcurrent_buffer ()); |
5546 | ||
d0d6b7c5 JB |
5547 | return Qnil; |
5548 | } | |
5549 | ||
5550 | DEFUN ("process-send-string", Fprocess_send_string, Sprocess_send_string, | |
fdb82f93 PJ |
5551 | 2, 2, 0, |
5552 | doc: /* Send PROCESS the contents of STRING as input. | |
5553 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5554 | nil, indicating the current buffer's process. | |
5555 | If STRING is more than 500 characters long, | |
5556 | it is sent in several bunches. This may happen even for shorter strings. | |
5557 | Output from processes can arrive in between bunches. */) | |
5842a27b | 5558 | (Lisp_Object process, Lisp_Object string) |
d0d6b7c5 JB |
5559 | { |
5560 | Lisp_Object proc; | |
b7826503 | 5561 | CHECK_STRING (string); |
d0d6b7c5 | 5562 | proc = get_process (process); |
400a67ff | 5563 | send_process (proc, SSDATA (string), |
1b234f64 | 5564 | SBYTES (string), string); |
d0d6b7c5 JB |
5565 | return Qnil; |
5566 | } | |
5567 | \f | |
16782258 JD |
5568 | /* Return the foreground process group for the tty/pty that |
5569 | the process P uses. */ | |
5570 | static int | |
d3da34e0 | 5571 | emacs_get_tty_pgrp (struct Lisp_Process *p) |
16782258 JD |
5572 | { |
5573 | int gid = -1; | |
5574 | ||
f3d9532b | 5575 | #ifdef TIOCGPGRP |
60f0fb11 | 5576 | if (ioctl (p->infd, TIOCGPGRP, &gid) == -1 && ! NILP (p->tty_name)) |
16782258 JD |
5577 | { |
5578 | int fd; | |
5579 | /* Some OS:es (Solaris 8/9) does not allow TIOCGPGRP from the | |
5580 | master side. Try the slave side. */ | |
42a5b22f | 5581 | fd = emacs_open (SSDATA (p->tty_name), O_RDONLY, 0); |
16782258 JD |
5582 | |
5583 | if (fd != -1) | |
5584 | { | |
5585 | ioctl (fd, TIOCGPGRP, &gid); | |
5586 | emacs_close (fd); | |
5587 | } | |
5588 | } | |
5589 | #endif /* defined (TIOCGPGRP ) */ | |
5590 | ||
5591 | return gid; | |
5592 | } | |
5593 | ||
b81ea5ef RS |
5594 | DEFUN ("process-running-child-p", Fprocess_running_child_p, |
5595 | Sprocess_running_child_p, 0, 1, 0, | |
fdb82f93 PJ |
5596 | doc: /* Return t if PROCESS has given the terminal to a child. |
5597 | If the operating system does not make it possible to find out, | |
5598 | return t unconditionally. */) | |
5842a27b | 5599 | (Lisp_Object process) |
b81ea5ef RS |
5600 | { |
5601 | /* Initialize in case ioctl doesn't exist or gives an error, | |
5602 | in a way that will cause returning t. */ | |
16782258 | 5603 | int gid; |
b81ea5ef RS |
5604 | Lisp_Object proc; |
5605 | struct Lisp_Process *p; | |
5606 | ||
5607 | proc = get_process (process); | |
5608 | p = XPROCESS (proc); | |
5609 | ||
d888760c | 5610 | if (!EQ (p->type, Qreal)) |
b81ea5ef | 5611 | error ("Process %s is not a subprocess", |
d5db4077 | 5612 | SDATA (p->name)); |
60f0fb11 | 5613 | if (p->infd < 0) |
b81ea5ef | 5614 | error ("Process %s is not active", |
d5db4077 | 5615 | SDATA (p->name)); |
b81ea5ef | 5616 | |
16782258 | 5617 | gid = emacs_get_tty_pgrp (p); |
b81ea5ef | 5618 | |
6bfd98e7 | 5619 | if (gid == p->pid) |
b81ea5ef RS |
5620 | return Qnil; |
5621 | return Qt; | |
5622 | } | |
5623 | \f | |
d0d6b7c5 | 5624 | /* send a signal number SIGNO to PROCESS. |
b81ea5ef RS |
5625 | If CURRENT_GROUP is t, that means send to the process group |
5626 | that currently owns the terminal being used to communicate with PROCESS. | |
d0d6b7c5 | 5627 | This is used for various commands in shell mode. |
b81ea5ef RS |
5628 | If CURRENT_GROUP is lambda, that means send to the process group |
5629 | that currently owns the terminal, but only if it is NOT the shell itself. | |
5630 | ||
d0d6b7c5 | 5631 | If NOMSG is zero, insert signal-announcements into process's buffers |
b0310da4 JB |
5632 | right away. |
5633 | ||
5634 | If we can, we try to signal PROCESS by sending control characters | |
e333e864 | 5635 | down the pty. This allows us to signal inferiors who have changed |
b0310da4 | 5636 | their uid, for which killpg would return an EPERM error. */ |
d0d6b7c5 | 5637 | |
f9738840 | 5638 | static void |
d3da34e0 JB |
5639 | process_send_signal (Lisp_Object process, int signo, Lisp_Object current_group, |
5640 | int nomsg) | |
d0d6b7c5 JB |
5641 | { |
5642 | Lisp_Object proc; | |
5643 | register struct Lisp_Process *p; | |
5644 | int gid; | |
5645 | int no_pgrp = 0; | |
5646 | ||
5647 | proc = get_process (process); | |
5648 | p = XPROCESS (proc); | |
5649 | ||
d888760c | 5650 | if (!EQ (p->type, Qreal)) |
d0d6b7c5 | 5651 | error ("Process %s is not a subprocess", |
d5db4077 | 5652 | SDATA (p->name)); |
60f0fb11 | 5653 | if (p->infd < 0) |
d0d6b7c5 | 5654 | error ("Process %s is not active", |
d5db4077 | 5655 | SDATA (p->name)); |
d0d6b7c5 | 5656 | |
60f0fb11 | 5657 | if (!p->pty_flag) |
d0d6b7c5 JB |
5658 | current_group = Qnil; |
5659 | ||
d0d6b7c5 | 5660 | /* If we are using pgrps, get a pgrp number and make it negative. */ |
2af70a0c RS |
5661 | if (NILP (current_group)) |
5662 | /* Send the signal to the shell's process group. */ | |
6bfd98e7 | 5663 | gid = p->pid; |
2af70a0c | 5664 | else |
d0d6b7c5 | 5665 | { |
b0310da4 | 5666 | #ifdef SIGNALS_VIA_CHARACTERS |
d0d6b7c5 JB |
5667 | /* If possible, send signals to the entire pgrp |
5668 | by sending an input character to it. */ | |
b0310da4 | 5669 | |
6be429b1 | 5670 | struct termios t; |
7f916a36 RS |
5671 | cc_t *sig_char = NULL; |
5672 | ||
60f0fb11 | 5673 | tcgetattr (p->infd, &t); |
6be429b1 JB |
5674 | |
5675 | switch (signo) | |
5676 | { | |
5677 | case SIGINT: | |
7f916a36 RS |
5678 | sig_char = &t.c_cc[VINTR]; |
5679 | break; | |
6be429b1 JB |
5680 | |
5681 | case SIGQUIT: | |
7f916a36 RS |
5682 | sig_char = &t.c_cc[VQUIT]; |
5683 | break; | |
6be429b1 JB |
5684 | |
5685 | case SIGTSTP: | |
d0adf46f | 5686 | #if defined (VSWTCH) && !defined (PREFER_VSUSP) |
7f916a36 | 5687 | sig_char = &t.c_cc[VSWTCH]; |
6be429b1 | 5688 | #else |
7f916a36 | 5689 | sig_char = &t.c_cc[VSUSP]; |
6be429b1 | 5690 | #endif |
7f916a36 | 5691 | break; |
6be429b1 JB |
5692 | } |
5693 | ||
ca4313d5 | 5694 | if (sig_char && *sig_char != CDISABLE) |
f1c206fc | 5695 | { |
f990b4e5 | 5696 | send_process (proc, (char *) sig_char, 1, Qnil); |
f1c206fc RS |
5697 | return; |
5698 | } | |
5699 | /* If we can't send the signal with a character, | |
5700 | fall through and send it another way. */ | |
f1c206fc RS |
5701 | |
5702 | /* The code above may fall through if it can't | |
5703 | handle the signal. */ | |
20505336 | 5704 | #endif /* defined (SIGNALS_VIA_CHARACTERS) */ |
d0d6b7c5 | 5705 | |
177c0ea7 | 5706 | #ifdef TIOCGPGRP |
2af70a0c | 5707 | /* Get the current pgrp using the tty itself, if we have that. |
d0d6b7c5 JB |
5708 | Otherwise, use the pty to get the pgrp. |
5709 | On pfa systems, saka@pfu.fujitsu.co.JP writes: | |
b0310da4 JB |
5710 | "TIOCGPGRP symbol defined in sys/ioctl.h at E50. |
5711 | But, TIOCGPGRP does not work on E50 ;-P works fine on E60" | |
d0d6b7c5 JB |
5712 | His patch indicates that if TIOCGPGRP returns an error, then |
5713 | we should just assume that p->pid is also the process group id. */ | |
d0d6b7c5 | 5714 | |
16782258 | 5715 | gid = emacs_get_tty_pgrp (p); |
f3d9532b | 5716 | |
16782258 JD |
5717 | if (gid == -1) |
5718 | /* If we can't get the information, assume | |
5719 | the shell owns the tty. */ | |
6bfd98e7 | 5720 | gid = p->pid; |
2af70a0c RS |
5721 | |
5722 | /* It is not clear whether anything really can set GID to -1. | |
5723 | Perhaps on some system one of those ioctls can or could do so. | |
5724 | Or perhaps this is vestigial. */ | |
d0d6b7c5 JB |
5725 | if (gid == -1) |
5726 | no_pgrp = 1; | |
b0310da4 | 5727 | #else /* ! defined (TIOCGPGRP ) */ |
301c3fe4 JB |
5728 | /* Can't select pgrps on this system, so we know that |
5729 | the child itself heads the pgrp. */ | |
6bfd98e7 | 5730 | gid = p->pid; |
301c3fe4 | 5731 | #endif /* ! defined (TIOCGPGRP ) */ |
b81ea5ef RS |
5732 | |
5733 | /* If current_group is lambda, and the shell owns the terminal, | |
5734 | don't send any signal. */ | |
6bfd98e7 | 5735 | if (EQ (current_group, Qlambda) && gid == p->pid) |
b81ea5ef | 5736 | return; |
d0d6b7c5 | 5737 | } |
d0d6b7c5 JB |
5738 | |
5739 | switch (signo) | |
5740 | { | |
5741 | #ifdef SIGCONT | |
5742 | case SIGCONT: | |
6bfd98e7 | 5743 | p->raw_status_new = 0; |
d0d6b7c5 | 5744 | p->status = Qrun; |
60f0fb11 | 5745 | p->tick = ++process_tick; |
d0d6b7c5 | 5746 | if (!nomsg) |
e42bdf01 CY |
5747 | { |
5748 | status_notify (NULL); | |
5749 | redisplay_preserve_echo_area (13); | |
5750 | } | |
d0d6b7c5 | 5751 | break; |
301c3fe4 | 5752 | #endif /* ! defined (SIGCONT) */ |
d0d6b7c5 | 5753 | case SIGINT: |
d0d6b7c5 | 5754 | case SIGQUIT: |
d0d6b7c5 | 5755 | case SIGKILL: |
60f0fb11 | 5756 | flush_pending_output (p->infd); |
d0d6b7c5 JB |
5757 | break; |
5758 | } | |
5759 | ||
5760 | /* If we don't have process groups, send the signal to the immediate | |
5761 | subprocess. That isn't really right, but it's better than any | |
5762 | obvious alternative. */ | |
5763 | if (no_pgrp) | |
5764 | { | |
6bfd98e7 | 5765 | kill (p->pid, signo); |
d0d6b7c5 JB |
5766 | return; |
5767 | } | |
5768 | ||
5769 | /* gid may be a pid, or minus a pgrp's number */ | |
5770 | #ifdef TIOCSIGSEND | |
5771 | if (!NILP (current_group)) | |
16782258 | 5772 | { |
60f0fb11 | 5773 | if (ioctl (p->infd, TIOCSIGSEND, signo) == -1) |
16782258 JD |
5774 | EMACS_KILLPG (gid, signo); |
5775 | } | |
d0d6b7c5 JB |
5776 | else |
5777 | { | |
6bfd98e7 | 5778 | gid = - p->pid; |
d0d6b7c5 JB |
5779 | kill (gid, signo); |
5780 | } | |
301c3fe4 | 5781 | #else /* ! defined (TIOCSIGSEND) */ |
2af70a0c | 5782 | EMACS_KILLPG (gid, signo); |
301c3fe4 | 5783 | #endif /* ! defined (TIOCSIGSEND) */ |
d0d6b7c5 JB |
5784 | } |
5785 | ||
5786 | DEFUN ("interrupt-process", Finterrupt_process, Sinterrupt_process, 0, 2, 0, | |
fdb82f93 PJ |
5787 | doc: /* Interrupt process PROCESS. |
5788 | PROCESS may be a process, a buffer, or the name of a process or buffer. | |
f3d9532b | 5789 | No arg or nil means current buffer's process. |
fdb82f93 PJ |
5790 | Second arg CURRENT-GROUP non-nil means send signal to |
5791 | the current process-group of the process's controlling terminal | |
5792 | rather than to the process's own process group. | |
5793 | If the process is a shell, this means interrupt current subjob | |
5794 | rather than the shell. | |
5795 | ||
5796 | If CURRENT-GROUP is `lambda', and if the shell owns the terminal, | |
5797 | don't send the signal. */) | |
5842a27b | 5798 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5799 | { |
5800 | process_send_signal (process, SIGINT, current_group, 0); | |
5801 | return process; | |
5802 | } | |
5803 | ||
5804 | DEFUN ("kill-process", Fkill_process, Skill_process, 0, 2, 0, | |
fdb82f93 PJ |
5805 | doc: /* Kill process PROCESS. May be process or name of one. |
5806 | See function `interrupt-process' for more details on usage. */) | |
5842a27b | 5807 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5808 | { |
5809 | process_send_signal (process, SIGKILL, current_group, 0); | |
5810 | return process; | |
5811 | } | |
5812 | ||
5813 | DEFUN ("quit-process", Fquit_process, Squit_process, 0, 2, 0, | |
fdb82f93 PJ |
5814 | doc: /* Send QUIT signal to process PROCESS. May be process or name of one. |
5815 | See function `interrupt-process' for more details on usage. */) | |
5842a27b | 5816 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5817 | { |
5818 | process_send_signal (process, SIGQUIT, current_group, 0); | |
5819 | return process; | |
5820 | } | |
5821 | ||
5822 | DEFUN ("stop-process", Fstop_process, Sstop_process, 0, 2, 0, | |
fdb82f93 | 5823 | doc: /* Stop process PROCESS. May be process or name of one. |
177c0ea7 | 5824 | See function `interrupt-process' for more details on usage. |
d888760c GM |
5825 | If PROCESS is a network or serial process, inhibit handling of incoming |
5826 | traffic. */) | |
5842a27b | 5827 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 | 5828 | { |
d888760c | 5829 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
5830 | { |
5831 | struct Lisp_Process *p; | |
177c0ea7 | 5832 | |
e690ca94 KS |
5833 | p = XPROCESS (process); |
5834 | if (NILP (p->command) | |
60f0fb11 | 5835 | && p->infd >= 0) |
e690ca94 | 5836 | { |
60f0fb11 SM |
5837 | FD_CLR (p->infd, &input_wait_mask); |
5838 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
e690ca94 KS |
5839 | } |
5840 | p->command = Qt; | |
5841 | return process; | |
5842 | } | |
d0d6b7c5 | 5843 | #ifndef SIGTSTP |
a9a73d6c | 5844 | error ("No SIGTSTP support"); |
d0d6b7c5 JB |
5845 | #else |
5846 | process_send_signal (process, SIGTSTP, current_group, 0); | |
5847 | #endif | |
5848 | return process; | |
5849 | } | |
5850 | ||
5851 | DEFUN ("continue-process", Fcontinue_process, Scontinue_process, 0, 2, 0, | |
fdb82f93 | 5852 | doc: /* Continue process PROCESS. May be process or name of one. |
177c0ea7 | 5853 | See function `interrupt-process' for more details on usage. |
d888760c GM |
5854 | If PROCESS is a network or serial process, resume handling of incoming |
5855 | traffic. */) | |
5842a27b | 5856 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 | 5857 | { |
d888760c | 5858 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
5859 | { |
5860 | struct Lisp_Process *p; | |
5861 | ||
5862 | p = XPROCESS (process); | |
5863 | if (EQ (p->command, Qt) | |
60f0fb11 | 5864 | && p->infd >= 0 |
e690ca94 KS |
5865 | && (!EQ (p->filter, Qt) || EQ (p->status, Qlisten))) |
5866 | { | |
60f0fb11 SM |
5867 | FD_SET (p->infd, &input_wait_mask); |
5868 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
d888760c GM |
5869 | #ifdef WINDOWSNT |
5870 | if (fd_info[ p->infd ].flags & FILE_SERIAL) | |
5871 | PurgeComm (fd_info[ p->infd ].hnd, PURGE_RXABORT | PURGE_RXCLEAR); | |
a7ebc409 | 5872 | #else /* not WINDOWSNT */ |
d888760c | 5873 | tcflush (p->infd, TCIFLUSH); |
a7ebc409 | 5874 | #endif /* not WINDOWSNT */ |
e690ca94 KS |
5875 | } |
5876 | p->command = Qnil; | |
5877 | return process; | |
5878 | } | |
d0d6b7c5 JB |
5879 | #ifdef SIGCONT |
5880 | process_send_signal (process, SIGCONT, current_group, 0); | |
5881 | #else | |
a9a73d6c | 5882 | error ("No SIGCONT support"); |
d0d6b7c5 JB |
5883 | #endif |
5884 | return process; | |
5885 | } | |
5886 | ||
5887 | DEFUN ("signal-process", Fsignal_process, Ssignal_process, | |
cdd5ea86 KS |
5888 | 2, 2, "sProcess (name or number): \nnSignal code: ", |
5889 | doc: /* Send PROCESS the signal with code SIGCODE. | |
648f6edf | 5890 | PROCESS may also be a number specifying the process id of the |
cdd5ea86 KS |
5891 | process to signal; in this case, the process need not be a child of |
5892 | this Emacs. | |
fdb82f93 | 5893 | SIGCODE may be an integer, or a symbol whose name is a signal name. */) |
5842a27b | 5894 | (Lisp_Object process, Lisp_Object sigcode) |
d0d6b7c5 | 5895 | { |
6bfd98e7 | 5896 | pid_t pid; |
cdd5ea86 KS |
5897 | |
5898 | if (INTEGERP (process)) | |
5899 | { | |
6bfd98e7 SM |
5900 | pid = XINT (process); |
5901 | goto got_it; | |
5902 | } | |
5903 | ||
5904 | if (FLOATP (process)) | |
5905 | { | |
648f6edf | 5906 | pid = (pid_t) XFLOAT_DATA (process); |
cdd5ea86 KS |
5907 | goto got_it; |
5908 | } | |
5909 | ||
5910 | if (STRINGP (process)) | |
5911 | { | |
5912 | Lisp_Object tem; | |
5913 | if (tem = Fget_process (process), NILP (tem)) | |
5914 | { | |
6bfd98e7 SM |
5915 | pid = XINT (Fstring_to_number (process, make_number (10))); |
5916 | if (pid > 0) | |
cdd5ea86 KS |
5917 | goto got_it; |
5918 | } | |
5919 | process = tem; | |
5920 | } | |
5921 | else | |
5922 | process = get_process (process); | |
177c0ea7 | 5923 | |
cdd5ea86 KS |
5924 | if (NILP (process)) |
5925 | return process; | |
5926 | ||
5927 | CHECK_PROCESS (process); | |
5928 | pid = XPROCESS (process)->pid; | |
6bfd98e7 | 5929 | if (pid <= 0) |
cdd5ea86 KS |
5930 | error ("Cannot signal process %s", SDATA (XPROCESS (process)->name)); |
5931 | ||
5932 | got_it: | |
4766242d | 5933 | |
59324b1d | 5934 | #define parse_signal(NAME, VALUE) \ |
05131107 | 5935 | else if (!xstrcasecmp (name, NAME)) \ |
4766242d RS |
5936 | XSETINT (sigcode, VALUE) |
5937 | ||
5938 | if (INTEGERP (sigcode)) | |
5939 | ; | |
5940 | else | |
5941 | { | |
25a48bd0 | 5942 | char *name; |
4766242d | 5943 | |
b7826503 | 5944 | CHECK_SYMBOL (sigcode); |
25a48bd0 | 5945 | name = SSDATA (SYMBOL_NAME (sigcode)); |
4766242d | 5946 | |
ed3751c8 | 5947 | if (!strncmp (name, "SIG", 3) || !strncmp (name, "sig", 3)) |
675984ed KS |
5948 | name += 3; |
5949 | ||
4766242d RS |
5950 | if (0) |
5951 | ; | |
59324b1d KS |
5952 | #ifdef SIGUSR1 |
5953 | parse_signal ("usr1", SIGUSR1); | |
5954 | #endif | |
5955 | #ifdef SIGUSR2 | |
5956 | parse_signal ("usr2", SIGUSR2); | |
5957 | #endif | |
5958 | #ifdef SIGTERM | |
5959 | parse_signal ("term", SIGTERM); | |
5960 | #endif | |
4766242d | 5961 | #ifdef SIGHUP |
59324b1d | 5962 | parse_signal ("hup", SIGHUP); |
4766242d RS |
5963 | #endif |
5964 | #ifdef SIGINT | |
59324b1d | 5965 | parse_signal ("int", SIGINT); |
4766242d RS |
5966 | #endif |
5967 | #ifdef SIGQUIT | |
59324b1d | 5968 | parse_signal ("quit", SIGQUIT); |
4766242d RS |
5969 | #endif |
5970 | #ifdef SIGILL | |
59324b1d | 5971 | parse_signal ("ill", SIGILL); |
4766242d RS |
5972 | #endif |
5973 | #ifdef SIGABRT | |
59324b1d | 5974 | parse_signal ("abrt", SIGABRT); |
4766242d RS |
5975 | #endif |
5976 | #ifdef SIGEMT | |
59324b1d | 5977 | parse_signal ("emt", SIGEMT); |
4766242d RS |
5978 | #endif |
5979 | #ifdef SIGKILL | |
59324b1d | 5980 | parse_signal ("kill", SIGKILL); |
4766242d RS |
5981 | #endif |
5982 | #ifdef SIGFPE | |
59324b1d | 5983 | parse_signal ("fpe", SIGFPE); |
4766242d RS |
5984 | #endif |
5985 | #ifdef SIGBUS | |
59324b1d | 5986 | parse_signal ("bus", SIGBUS); |
4766242d RS |
5987 | #endif |
5988 | #ifdef SIGSEGV | |
59324b1d | 5989 | parse_signal ("segv", SIGSEGV); |
4766242d RS |
5990 | #endif |
5991 | #ifdef SIGSYS | |
59324b1d | 5992 | parse_signal ("sys", SIGSYS); |
4766242d RS |
5993 | #endif |
5994 | #ifdef SIGPIPE | |
59324b1d | 5995 | parse_signal ("pipe", SIGPIPE); |
4766242d RS |
5996 | #endif |
5997 | #ifdef SIGALRM | |
59324b1d | 5998 | parse_signal ("alrm", SIGALRM); |
4766242d RS |
5999 | #endif |
6000 | #ifdef SIGURG | |
59324b1d | 6001 | parse_signal ("urg", SIGURG); |
4766242d RS |
6002 | #endif |
6003 | #ifdef SIGSTOP | |
59324b1d | 6004 | parse_signal ("stop", SIGSTOP); |
4766242d RS |
6005 | #endif |
6006 | #ifdef SIGTSTP | |
59324b1d | 6007 | parse_signal ("tstp", SIGTSTP); |
4766242d RS |
6008 | #endif |
6009 | #ifdef SIGCONT | |
59324b1d | 6010 | parse_signal ("cont", SIGCONT); |
4766242d RS |
6011 | #endif |
6012 | #ifdef SIGCHLD | |
59324b1d | 6013 | parse_signal ("chld", SIGCHLD); |
4766242d RS |
6014 | #endif |
6015 | #ifdef SIGTTIN | |
59324b1d | 6016 | parse_signal ("ttin", SIGTTIN); |
4766242d RS |
6017 | #endif |
6018 | #ifdef SIGTTOU | |
59324b1d | 6019 | parse_signal ("ttou", SIGTTOU); |
4766242d RS |
6020 | #endif |
6021 | #ifdef SIGIO | |
59324b1d | 6022 | parse_signal ("io", SIGIO); |
4766242d RS |
6023 | #endif |
6024 | #ifdef SIGXCPU | |
59324b1d | 6025 | parse_signal ("xcpu", SIGXCPU); |
4766242d RS |
6026 | #endif |
6027 | #ifdef SIGXFSZ | |
59324b1d | 6028 | parse_signal ("xfsz", SIGXFSZ); |
4766242d RS |
6029 | #endif |
6030 | #ifdef SIGVTALRM | |
59324b1d | 6031 | parse_signal ("vtalrm", SIGVTALRM); |
4766242d RS |
6032 | #endif |
6033 | #ifdef SIGPROF | |
59324b1d | 6034 | parse_signal ("prof", SIGPROF); |
4766242d RS |
6035 | #endif |
6036 | #ifdef SIGWINCH | |
59324b1d | 6037 | parse_signal ("winch", SIGWINCH); |
4766242d RS |
6038 | #endif |
6039 | #ifdef SIGINFO | |
59324b1d | 6040 | parse_signal ("info", SIGINFO); |
4766242d RS |
6041 | #endif |
6042 | else | |
9fa195a2 | 6043 | error ("Undefined signal name %s", name); |
4766242d RS |
6044 | } |
6045 | ||
59324b1d | 6046 | #undef parse_signal |
4766242d | 6047 | |
6bfd98e7 | 6048 | return make_number (kill (pid, XINT (sigcode))); |
d0d6b7c5 JB |
6049 | } |
6050 | ||
6051 | DEFUN ("process-send-eof", Fprocess_send_eof, Sprocess_send_eof, 0, 1, 0, | |
fdb82f93 PJ |
6052 | doc: /* Make PROCESS see end-of-file in its input. |
6053 | EOF comes after any text already sent to it. | |
6054 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
6055 | nil, indicating the current buffer's process. | |
6056 | If PROCESS is a network connection, or is a process communicating | |
6057 | through a pipe (as opposed to a pty), then you cannot send any more | |
d888760c GM |
6058 | text to PROCESS after you call this function. |
6059 | If PROCESS is a serial process, wait until all output written to the | |
6060 | process has been transmitted to the serial port. */) | |
5842a27b | 6061 | (Lisp_Object process) |
d0d6b7c5 JB |
6062 | { |
6063 | Lisp_Object proc; | |
de7fbd09 | 6064 | struct coding_system *coding; |
d0d6b7c5 | 6065 | |
e690ca94 KS |
6066 | if (DATAGRAM_CONN_P (process)) |
6067 | return process; | |
6068 | ||
d0d6b7c5 | 6069 | proc = get_process (process); |
60f0fb11 | 6070 | coding = proc_encode_coding_system[XPROCESS (proc)->outfd]; |
577d03d5 RS |
6071 | |
6072 | /* Make sure the process is really alive. */ | |
6bfd98e7 | 6073 | if (XPROCESS (proc)->raw_status_new) |
577d03d5 RS |
6074 | update_status (XPROCESS (proc)); |
6075 | if (! EQ (XPROCESS (proc)->status, Qrun)) | |
d5db4077 | 6076 | error ("Process %s not running", SDATA (XPROCESS (proc)->name)); |
577d03d5 | 6077 | |
de7fbd09 KH |
6078 | if (CODING_REQUIRE_FLUSHING (coding)) |
6079 | { | |
6080 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
6081 | send_process (proc, "", 0, Qnil); | |
6082 | } | |
6083 | ||
60f0fb11 | 6084 | if (XPROCESS (proc)->pty_flag) |
4556b700 | 6085 | send_process (proc, "\004", 1, Qnil); |
a879ee6f | 6086 | else if (EQ (XPROCESS (proc)->type, Qserial)) |
d888760c | 6087 | { |
a7ebc409 | 6088 | #ifndef WINDOWSNT |
d888760c GM |
6089 | if (tcdrain (XPROCESS (proc)->outfd) != 0) |
6090 | error ("tcdrain() failed: %s", emacs_strerror (errno)); | |
a7ebc409 | 6091 | #endif /* not WINDOWSNT */ |
d888760c GM |
6092 | /* Do nothing on Windows because writes are blocking. */ |
6093 | } | |
d0d6b7c5 JB |
6094 | else |
6095 | { | |
4525f571 RS |
6096 | int old_outfd, new_outfd; |
6097 | ||
93853f3d | 6098 | #ifdef HAVE_SHUTDOWN |
02f55c4b RS |
6099 | /* If this is a network connection, or socketpair is used |
6100 | for communication with the subprocess, call shutdown to cause EOF. | |
6101 | (In some old system, shutdown to socketpair doesn't work. | |
6102 | Then we just can't win.) */ | |
a879ee6f | 6103 | if (EQ (XPROCESS (proc)->type, Qnetwork) |
60f0fb11 SM |
6104 | || XPROCESS (proc)->outfd == XPROCESS (proc)->infd) |
6105 | shutdown (XPROCESS (proc)->outfd, 1); | |
02f55c4b | 6106 | /* In case of socketpair, outfd == infd, so don't close it. */ |
60f0fb11 SM |
6107 | if (XPROCESS (proc)->outfd != XPROCESS (proc)->infd) |
6108 | emacs_close (XPROCESS (proc)->outfd); | |
93853f3d | 6109 | #else /* not HAVE_SHUTDOWN */ |
60f0fb11 | 6110 | emacs_close (XPROCESS (proc)->outfd); |
93853f3d | 6111 | #endif /* not HAVE_SHUTDOWN */ |
68c45bf0 | 6112 | new_outfd = emacs_open (NULL_DEVICE, O_WRONLY, 0); |
27448380 RS |
6113 | if (new_outfd < 0) |
6114 | abort (); | |
60f0fb11 | 6115 | old_outfd = XPROCESS (proc)->outfd; |
4525f571 RS |
6116 | |
6117 | if (!proc_encode_coding_system[new_outfd]) | |
6118 | proc_encode_coding_system[new_outfd] | |
6119 | = (struct coding_system *) xmalloc (sizeof (struct coding_system)); | |
72af86bd AS |
6120 | memcpy (proc_encode_coding_system[new_outfd], |
6121 | proc_encode_coding_system[old_outfd], | |
6122 | sizeof (struct coding_system)); | |
6123 | memset (proc_encode_coding_system[old_outfd], 0, | |
6124 | sizeof (struct coding_system)); | |
4525f571 | 6125 | |
60f0fb11 | 6126 | XPROCESS (proc)->outfd = new_outfd; |
d0d6b7c5 | 6127 | } |
d0d6b7c5 JB |
6128 | return process; |
6129 | } | |
d0d6b7c5 | 6130 | \f |
3fed8ad5 GM |
6131 | /* On receipt of a signal that a child status has changed, loop asking |
6132 | about children with changed statuses until the system says there | |
6133 | are no more. | |
177c0ea7 | 6134 | |
3fed8ad5 GM |
6135 | All we do is change the status; we do not run sentinels or print |
6136 | notifications. That is saved for the next time keyboard input is | |
6137 | done, in order to avoid timing errors. | |
6138 | ||
6139 | ** WARNING: this can be called during garbage collection. | |
6140 | Therefore, it must not be fooled by the presence of mark bits in | |
6141 | Lisp objects. | |
6142 | ||
6143 | ** USG WARNING: Although it is not obvious from the documentation | |
6144 | in signal(2), on a USG system the SIGCLD handler MUST NOT call | |
6145 | signal() before executing at least one wait(), otherwise the | |
6146 | handler will be called again, resulting in an infinite loop. The | |
6147 | relevant portion of the documentation reads "SIGCLD signals will be | |
6148 | queued and the signal-catching function will be continually | |
6149 | reentered until the queue is empty". Invoking signal() causes the | |
6150 | kernel to reexamine the SIGCLD queue. Fred Fish, UniSoft Systems | |
6b61353c KH |
6151 | Inc. |
6152 | ||
6153 | ** Malloc WARNING: This should never call malloc either directly or | |
6154 | indirectly; if it does, that is a bug */ | |
d0d6b7c5 | 6155 | |
a5cfdda8 | 6156 | #ifdef SIGCHLD |
9af30bdf | 6157 | static void |
d3da34e0 | 6158 | sigchld_handler (int signo) |
d0d6b7c5 JB |
6159 | { |
6160 | int old_errno = errno; | |
6161 | Lisp_Object proc; | |
97ec208f | 6162 | struct Lisp_Process *p; |
d0d6b7c5 | 6163 | |
333f1b6f JD |
6164 | SIGNAL_THREAD_CHECK (signo); |
6165 | ||
d0d6b7c5 JB |
6166 | while (1) |
6167 | { | |
8e050977 | 6168 | pid_t pid; |
bba104c1 | 6169 | int w; |
d0d6b7c5 JB |
6170 | Lisp_Object tail; |
6171 | ||
6172 | #ifdef WNOHANG | |
6173 | #ifndef WUNTRACED | |
6174 | #define WUNTRACED 0 | |
6175 | #endif /* no WUNTRACED */ | |
6176 | /* Keep trying to get a status until we get a definitive result. */ | |
e7d4a904 | 6177 | do |
63136da6 | 6178 | { |
29ed4d51 CY |
6179 | errno = 0; |
6180 | pid = wait3 (&w, WNOHANG | WUNTRACED, 0); | |
29ed4d51 | 6181 | } |
e7d4a904 | 6182 | while (pid < 0 && errno == EINTR); |
d0d6b7c5 JB |
6183 | |
6184 | if (pid <= 0) | |
6185 | { | |
3fed8ad5 GM |
6186 | /* PID == 0 means no processes found, PID == -1 means a real |
6187 | failure. We have done all our job, so return. */ | |
d0d6b7c5 | 6188 | |
d0d6b7c5 JB |
6189 | errno = old_errno; |
6190 | return; | |
6191 | } | |
6192 | #else | |
6193 | pid = wait (&w); | |
6194 | #endif /* no WNOHANG */ | |
6195 | ||
6196 | /* Find the process that signaled us, and record its status. */ | |
6197 | ||
a5cfdda8 | 6198 | /* The process can have been deleted by Fdelete_process. */ |
8e50cc2d | 6199 | for (tail = deleted_pid_list; CONSP (tail); tail = XCDR (tail)) |
a5cfdda8 | 6200 | { |
8e050977 | 6201 | Lisp_Object xpid = XCAR (tail); |
8e50cc2d SM |
6202 | if ((INTEGERP (xpid) && pid == (pid_t) XINT (xpid)) |
6203 | || (FLOATP (xpid) && pid == (pid_t) XFLOAT_DATA (xpid))) | |
8e050977 CY |
6204 | { |
6205 | XSETCAR (tail, Qnil); | |
6206 | goto sigchld_end_of_loop; | |
6207 | } | |
a5cfdda8 KS |
6208 | } |
6209 | ||
6210 | /* Otherwise, if it is asynchronous, it is in Vprocess_alist. */ | |
d0d6b7c5 | 6211 | p = 0; |
8e50cc2d | 6212 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6213 | { |
70949dac | 6214 | proc = XCDR (XCAR (tail)); |
d0d6b7c5 | 6215 | p = XPROCESS (proc); |
d888760c | 6216 | if (EQ (p->type, Qreal) && p->pid == pid) |
d0d6b7c5 JB |
6217 | break; |
6218 | p = 0; | |
6219 | } | |
6220 | ||
6221 | /* Look for an asynchronous process whose pid hasn't been filled | |
6222 | in yet. */ | |
6223 | if (p == 0) | |
8e50cc2d | 6224 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6225 | { |
70949dac | 6226 | proc = XCDR (XCAR (tail)); |
d0d6b7c5 | 6227 | p = XPROCESS (proc); |
6bfd98e7 | 6228 | if (p->pid == -1) |
d0d6b7c5 JB |
6229 | break; |
6230 | p = 0; | |
6231 | } | |
177c0ea7 | 6232 | |
d0d6b7c5 JB |
6233 | /* Change the status of the process that was found. */ |
6234 | if (p != 0) | |
6235 | { | |
e98d950b | 6236 | int clear_desc_flag = 0; |
177c0ea7 | 6237 | |
60f0fb11 | 6238 | p->tick = ++process_tick; |
bba104c1 | 6239 | p->raw_status = w; |
6bfd98e7 | 6240 | p->raw_status_new = 1; |
177c0ea7 | 6241 | |
d0d6b7c5 | 6242 | /* If process has terminated, stop waiting for its output. */ |
e98d950b | 6243 | if ((WIFSIGNALED (w) || WIFEXITED (w)) |
60f0fb11 | 6244 | && p->infd >= 0) |
e98d950b RS |
6245 | clear_desc_flag = 1; |
6246 | ||
6247 | /* We use clear_desc_flag to avoid a compiler bug in Microsoft C. */ | |
6248 | if (clear_desc_flag) | |
6249 | { | |
60f0fb11 SM |
6250 | FD_CLR (p->infd, &input_wait_mask); |
6251 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
e98d950b | 6252 | } |
6be429b1 | 6253 | |
214d6069 | 6254 | /* Tell wait_reading_process_output that it needs to wake up and |
6be429b1 JB |
6255 | look around. */ |
6256 | if (input_available_clear_time) | |
6257 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d0d6b7c5 JB |
6258 | } |
6259 | ||
a5cfdda8 KS |
6260 | /* There was no asynchronous process found for that pid: we have |
6261 | a synchronous process. */ | |
d0d6b7c5 JB |
6262 | else |
6263 | { | |
6264 | synch_process_alive = 0; | |
6265 | ||
6266 | /* Report the status of the synchronous process. */ | |
6267 | if (WIFEXITED (w)) | |
6268 | synch_process_retcode = WRETCODE (w); | |
6269 | else if (WIFSIGNALED (w)) | |
63136da6 | 6270 | synch_process_termsig = WTERMSIG (w); |
6be429b1 | 6271 | |
214d6069 | 6272 | /* Tell wait_reading_process_output that it needs to wake up and |
6be429b1 JB |
6273 | look around. */ |
6274 | if (input_available_clear_time) | |
6275 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d0d6b7c5 JB |
6276 | } |
6277 | ||
a5cfdda8 KS |
6278 | sigchld_end_of_loop: |
6279 | ; | |
6280 | ||
d0d6b7c5 JB |
6281 | /* On some systems, we must return right away. |
6282 | If any more processes want to signal us, we will | |
6283 | get another signal. | |
6284 | Otherwise (on systems that have WNOHANG), loop around | |
6285 | to use up all the processes that have something to tell us. */ | |
4e6277d8 | 6286 | #if (defined WINDOWSNT \ |
8a2a6032 | 6287 | || (defined USG && !defined GNU_LINUX \ |
63136da6 | 6288 | && !(defined HPUX && defined WNOHANG))) |
d0d6b7c5 JB |
6289 | errno = old_errno; |
6290 | return; | |
6291 | #endif /* USG, but not HPUX with WNOHANG */ | |
6292 | } | |
6293 | } | |
a5cfdda8 | 6294 | #endif /* SIGCHLD */ |
d0d6b7c5 JB |
6295 | \f |
6296 | ||
6297 | static Lisp_Object | |
d3da34e0 | 6298 | exec_sentinel_unwind (Lisp_Object data) |
d0d6b7c5 | 6299 | { |
70949dac | 6300 | XPROCESS (XCAR (data))->sentinel = XCDR (data); |
d0d6b7c5 JB |
6301 | return Qnil; |
6302 | } | |
6303 | ||
3b9a3dfa | 6304 | static Lisp_Object |
b93aacde | 6305 | exec_sentinel_error_handler (Lisp_Object error_val) |
3b9a3dfa | 6306 | { |
b93aacde | 6307 | cmd_error_internal (error_val, "error in process sentinel: "); |
3b9a3dfa RS |
6308 | Vinhibit_quit = Qt; |
6309 | update_echo_area (); | |
833ba342 | 6310 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 6311 | return Qt; |
3b9a3dfa RS |
6312 | } |
6313 | ||
d0d6b7c5 | 6314 | static void |
d3da34e0 | 6315 | exec_sentinel (Lisp_Object proc, Lisp_Object reason) |
d0d6b7c5 | 6316 | { |
aba7731a | 6317 | Lisp_Object sentinel, odeactivate; |
d0d6b7c5 | 6318 | register struct Lisp_Process *p = XPROCESS (proc); |
aed13378 | 6319 | int count = SPECPDL_INDEX (); |
4da2f5be | 6320 | int outer_running_asynch_code = running_asynch_code; |
bbce7d72 | 6321 | int waiting = waiting_for_user_input_p; |
d0d6b7c5 | 6322 | |
84af9896 RS |
6323 | if (inhibit_sentinels) |
6324 | return; | |
6325 | ||
dfc21838 RS |
6326 | /* No need to gcpro these, because all we do with them later |
6327 | is test them for EQness, and none of them should be a string. */ | |
8fb3cf64 | 6328 | odeactivate = Vdeactivate_mark; |
aba7731a PE |
6329 | #if 0 |
6330 | Lisp_Object obuffer, okeymap; | |
dfc21838 | 6331 | XSETBUFFER (obuffer, current_buffer); |
4b4deea2 | 6332 | okeymap = BVAR (current_buffer, keymap); |
aba7731a | 6333 | #endif |
dfc21838 | 6334 | |
97e53006 SM |
6335 | /* There's no good reason to let sentinels change the current |
6336 | buffer, and many callers of accept-process-output, sit-for, and | |
6337 | friends don't expect current-buffer to be changed from under them. */ | |
d2630aef | 6338 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
97e53006 | 6339 | |
d0d6b7c5 JB |
6340 | sentinel = p->sentinel; |
6341 | if (NILP (sentinel)) | |
6342 | return; | |
6343 | ||
6344 | /* Zilch the sentinel while it's running, to avoid recursive invocations; | |
6345 | assure that it gets restored no matter how the sentinel exits. */ | |
6346 | p->sentinel = Qnil; | |
6347 | record_unwind_protect (exec_sentinel_unwind, Fcons (proc, sentinel)); | |
6348 | /* Inhibit quit so that random quits don't screw up a running filter. */ | |
6349 | specbind (Qinhibit_quit, Qt); | |
f00c449b | 6350 | specbind (Qlast_nonmenu_event, Qt); /* Why? --Stef */ |
3b9a3dfa | 6351 | |
4da2f5be RS |
6352 | /* In case we get recursively called, |
6353 | and we already saved the match data nonrecursively, | |
6354 | save the same match data in safely recursive fashion. */ | |
6355 | if (outer_running_asynch_code) | |
6356 | { | |
6357 | Lisp_Object tem; | |
89f2614d KS |
6358 | tem = Fmatch_data (Qnil, Qnil, Qnil); |
6359 | restore_search_regs (); | |
6360 | record_unwind_save_match_data (); | |
6361 | Fset_match_data (tem, Qt); | |
4da2f5be RS |
6362 | } |
6363 | ||
6364 | /* For speed, if a search happens within this code, | |
6365 | save the match data in a special nonrecursive fashion. */ | |
7074fde6 | 6366 | running_asynch_code = 1; |
4da2f5be | 6367 | |
3b9a3dfa RS |
6368 | internal_condition_case_1 (read_process_output_call, |
6369 | Fcons (sentinel, | |
6370 | Fcons (proc, Fcons (reason, Qnil))), | |
6371 | !NILP (Vdebug_on_error) ? Qnil : Qerror, | |
6372 | exec_sentinel_error_handler); | |
4da2f5be RS |
6373 | |
6374 | /* If we saved the match data nonrecursively, restore it now. */ | |
89f2614d | 6375 | restore_search_regs (); |
4da2f5be | 6376 | running_asynch_code = outer_running_asynch_code; |
8fb3cf64 KH |
6377 | |
6378 | Vdeactivate_mark = odeactivate; | |
bbce7d72 RS |
6379 | |
6380 | /* Restore waiting_for_user_input_p as it was | |
6381 | when we were called, in case the filter clobbered it. */ | |
6382 | waiting_for_user_input_p = waiting; | |
6383 | ||
7973cfa8 | 6384 | #if 0 |
dfc21838 RS |
6385 | if (! EQ (Fcurrent_buffer (), obuffer) |
6386 | || ! EQ (current_buffer->keymap, okeymap)) | |
7973cfa8 | 6387 | #endif |
927e08be RS |
6388 | /* But do it only if the caller is actually going to read events. |
6389 | Otherwise there's no need to make him wake up, and it could | |
7157b8fe | 6390 | cause trouble (for example it would make sit_for return). */ |
927e08be RS |
6391 | if (waiting_for_user_input_p == -1) |
6392 | record_asynch_buffer_change (); | |
8fb3cf64 | 6393 | |
2ea6d561 | 6394 | unbind_to (count, Qnil); |
d0d6b7c5 JB |
6395 | } |
6396 | ||
6397 | /* Report all recent events of a change in process status | |
6398 | (either run the sentinel or output a message). | |
b50fe468 RS |
6399 | This is usually done while Emacs is waiting for keyboard input |
6400 | but can be done at other times. */ | |
d0d6b7c5 | 6401 | |
ff6daed3 | 6402 | static void |
d3da34e0 | 6403 | status_notify (struct Lisp_Process *deleting_process) |
d0d6b7c5 JB |
6404 | { |
6405 | register Lisp_Object proc, buffer; | |
2e4149a8 | 6406 | Lisp_Object tail, msg; |
d0d6b7c5 JB |
6407 | struct gcpro gcpro1, gcpro2; |
6408 | ||
2e4149a8 KH |
6409 | tail = Qnil; |
6410 | msg = Qnil; | |
d0d6b7c5 JB |
6411 | /* We need to gcpro tail; if read_process_output calls a filter |
6412 | which deletes a process and removes the cons to which tail points | |
6413 | from Vprocess_alist, and then causes a GC, tail is an unprotected | |
6414 | reference. */ | |
6415 | GCPRO2 (tail, msg); | |
6416 | ||
30623085 RS |
6417 | /* Set this now, so that if new processes are created by sentinels |
6418 | that we run, we get called again to handle their status changes. */ | |
6419 | update_tick = process_tick; | |
6420 | ||
99784d63 | 6421 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6422 | { |
30623085 RS |
6423 | Lisp_Object symbol; |
6424 | register struct Lisp_Process *p; | |
6425 | ||
99784d63 | 6426 | proc = Fcdr (XCAR (tail)); |
30623085 RS |
6427 | p = XPROCESS (proc); |
6428 | ||
60f0fb11 | 6429 | if (p->tick != p->update_tick) |
d0d6b7c5 | 6430 | { |
60f0fb11 | 6431 | p->update_tick = p->tick; |
d0d6b7c5 | 6432 | |
30623085 | 6433 | /* If process is still active, read any output that remains. */ |
4da2f5be | 6434 | while (! EQ (p->filter, Qt) |
dd2a17ab | 6435 | && ! EQ (p->status, Qconnect) |
e690ca94 | 6436 | && ! EQ (p->status, Qlisten) |
d888760c GM |
6437 | /* Network or serial process not stopped: */ |
6438 | && ! EQ (p->command, Qt) | |
60f0fb11 | 6439 | && p->infd >= 0 |
ff6daed3 | 6440 | && p != deleting_process |
60f0fb11 | 6441 | && read_process_output (proc, p->infd) > 0); |
d0d6b7c5 | 6442 | |
30623085 | 6443 | buffer = p->buffer; |
d0d6b7c5 | 6444 | |
30623085 | 6445 | /* Get the text to use for the message. */ |
6bfd98e7 | 6446 | if (p->raw_status_new) |
30623085 | 6447 | update_status (p); |
116c423c | 6448 | msg = status_message (p); |
d0d6b7c5 | 6449 | |
30623085 RS |
6450 | /* If process is terminated, deactivate it or delete it. */ |
6451 | symbol = p->status; | |
6452 | if (CONSP (p->status)) | |
70949dac | 6453 | symbol = XCAR (p->status); |
d0d6b7c5 | 6454 | |
30623085 RS |
6455 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit) |
6456 | || EQ (symbol, Qclosed)) | |
6457 | { | |
6458 | if (delete_exited_processes) | |
6459 | remove_process (proc); | |
6460 | else | |
6461 | deactivate_process (proc); | |
6462 | } | |
d0d6b7c5 | 6463 | |
0ad61fe7 RS |
6464 | /* The actions above may have further incremented p->tick. |
6465 | So set p->update_tick again | |
6466 | so that an error in the sentinel will not cause | |
6467 | this code to be run again. */ | |
60f0fb11 | 6468 | p->update_tick = p->tick; |
30623085 RS |
6469 | /* Now output the message suitably. */ |
6470 | if (!NILP (p->sentinel)) | |
6471 | exec_sentinel (proc, msg); | |
6472 | /* Don't bother with a message in the buffer | |
6473 | when a process becomes runnable. */ | |
6474 | else if (!EQ (symbol, Qrun) && !NILP (buffer)) | |
6475 | { | |
01f5787b | 6476 | Lisp_Object tem; |
30623085 | 6477 | struct buffer *old = current_buffer; |
f877c546 EZ |
6478 | EMACS_INT opoint, opoint_byte; |
6479 | EMACS_INT before, before_byte; | |
2e4149a8 | 6480 | |
30623085 RS |
6481 | /* Avoid error if buffer is deleted |
6482 | (probably that's why the process is dead, too) */ | |
4b4deea2 | 6483 | if (NILP (BVAR (XBUFFER (buffer), name))) |
30623085 RS |
6484 | continue; |
6485 | Fset_buffer (buffer); | |
12ca5cdf | 6486 | |
6ec8bbd2 | 6487 | opoint = PT; |
d8a2934e | 6488 | opoint_byte = PT_BYTE; |
30623085 RS |
6489 | /* Insert new output into buffer |
6490 | at the current end-of-output marker, | |
6491 | thus preserving logical ordering of input and output. */ | |
6492 | if (XMARKER (p->mark)->buffer) | |
d8a2934e | 6493 | Fgoto_char (p->mark); |
30623085 | 6494 | else |
d8a2934e | 6495 | SET_PT_BOTH (ZV, ZV_BYTE); |
12ca5cdf RS |
6496 | |
6497 | before = PT; | |
d8a2934e | 6498 | before_byte = PT_BYTE; |
30623085 | 6499 | |
4b4deea2 TT |
6500 | tem = BVAR (current_buffer, read_only); |
6501 | BVAR (current_buffer, read_only) = Qnil; | |
30623085 RS |
6502 | insert_string ("\nProcess "); |
6503 | Finsert (1, &p->name); | |
6504 | insert_string (" "); | |
6505 | Finsert (1, &msg); | |
4b4deea2 | 6506 | BVAR (current_buffer, read_only) = tem; |
d8a2934e | 6507 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); |
30623085 | 6508 | |
12ca5cdf | 6509 | if (opoint >= before) |
d8a2934e RS |
6510 | SET_PT_BOTH (opoint + (PT - before), |
6511 | opoint_byte + (PT_BYTE - before_byte)); | |
12ca5cdf | 6512 | else |
d8a2934e | 6513 | SET_PT_BOTH (opoint, opoint_byte); |
12ca5cdf | 6514 | |
30623085 | 6515 | set_buffer_internal (old); |
d0d6b7c5 | 6516 | } |
30623085 RS |
6517 | } |
6518 | } /* end for */ | |
d0d6b7c5 JB |
6519 | |
6520 | update_mode_lines++; /* in case buffers use %s in mode-line-format */ | |
d0d6b7c5 JB |
6521 | UNGCPRO; |
6522 | } | |
0fa1789e KH |
6523 | |
6524 | \f | |
6525 | DEFUN ("set-process-coding-system", Fset_process_coding_system, | |
6526 | Sset_process_coding_system, 1, 3, 0, | |
fdb82f93 PJ |
6527 | doc: /* Set coding systems of PROCESS to DECODING and ENCODING. |
6528 | DECODING will be used to decode subprocess output and ENCODING to | |
6529 | encode subprocess input. */) | |
5842a27b | 6530 | (register Lisp_Object process, Lisp_Object decoding, Lisp_Object encoding) |
0fa1789e KH |
6531 | { |
6532 | register struct Lisp_Process *p; | |
6533 | ||
f3d9532b JB |
6534 | CHECK_PROCESS (process); |
6535 | p = XPROCESS (process); | |
60f0fb11 | 6536 | if (p->infd < 0) |
d5db4077 | 6537 | error ("Input file descriptor of %s closed", SDATA (p->name)); |
60f0fb11 | 6538 | if (p->outfd < 0) |
d5db4077 | 6539 | error ("Output file descriptor of %s closed", SDATA (p->name)); |
03f04413 KH |
6540 | Fcheck_coding_system (decoding); |
6541 | Fcheck_coding_system (encoding); | |
76d812bb | 6542 | encoding = coding_inherit_eol_type (encoding, Qnil); |
03f04413 KH |
6543 | p->decode_coding_system = decoding; |
6544 | p->encode_coding_system = encoding; | |
f3d9532b | 6545 | setup_process_coding_systems (process); |
0fa1789e KH |
6546 | |
6547 | return Qnil; | |
6548 | } | |
6549 | ||
6550 | DEFUN ("process-coding-system", | |
6551 | Fprocess_coding_system, Sprocess_coding_system, 1, 1, 0, | |
fdb82f93 | 6552 | doc: /* Return a cons of coding systems for decoding and encoding of PROCESS. */) |
5842a27b | 6553 | (register Lisp_Object process) |
0fa1789e | 6554 | { |
f3d9532b JB |
6555 | CHECK_PROCESS (process); |
6556 | return Fcons (XPROCESS (process)->decode_coding_system, | |
6557 | XPROCESS (process)->encode_coding_system); | |
0fa1789e | 6558 | } |
03f04413 KH |
6559 | |
6560 | DEFUN ("set-process-filter-multibyte", Fset_process_filter_multibyte, | |
6561 | Sset_process_filter_multibyte, 2, 2, 0, | |
7392e23c KS |
6562 | doc: /* Set multibyteness of the strings given to PROCESS's filter. |
6563 | If FLAG is non-nil, the filter is given multibyte strings. | |
6564 | If FLAG is nil, the filter is given unibyte strings. In this case, | |
03f04413 KH |
6565 | all character code conversion except for end-of-line conversion is |
6566 | suppressed. */) | |
5842a27b | 6567 | (Lisp_Object process, Lisp_Object flag) |
03f04413 KH |
6568 | { |
6569 | register struct Lisp_Process *p; | |
6570 | ||
f3d9532b JB |
6571 | CHECK_PROCESS (process); |
6572 | p = XPROCESS (process); | |
5431bd6a SM |
6573 | if (NILP (flag)) |
6574 | p->decode_coding_system = raw_text_coding_system (p->decode_coding_system); | |
f3d9532b | 6575 | setup_process_coding_systems (process); |
03f04413 KH |
6576 | |
6577 | return Qnil; | |
6578 | } | |
6579 | ||
6580 | DEFUN ("process-filter-multibyte-p", Fprocess_filter_multibyte_p, | |
6581 | Sprocess_filter_multibyte_p, 1, 1, 0, | |
6582 | doc: /* Return t if a multibyte string is given to PROCESS's filter.*/) | |
5842a27b | 6583 | (Lisp_Object process) |
03f04413 KH |
6584 | { |
6585 | register struct Lisp_Process *p; | |
5431bd6a | 6586 | struct coding_system *coding; |
03f04413 | 6587 | |
f3d9532b JB |
6588 | CHECK_PROCESS (process); |
6589 | p = XPROCESS (process); | |
5431bd6a SM |
6590 | coding = proc_decode_coding_system[p->infd]; |
6591 | return (CODING_FOR_UNIBYTE (coding) ? Qnil : Qt); | |
03f04413 KH |
6592 | } |
6593 | ||
6594 | ||
d0d6b7c5 | 6595 | \f |
cb768704 | 6596 | |
4475bec4 PE |
6597 | # ifdef HAVE_GPM |
6598 | ||
994d9841 | 6599 | void |
d3da34e0 | 6600 | add_gpm_wait_descriptor (int desc) |
994d9841 | 6601 | { |
3fad2ad2 | 6602 | add_keyboard_wait_descriptor (desc); |
994d9841 NR |
6603 | } |
6604 | ||
994d9841 | 6605 | void |
d3da34e0 | 6606 | delete_gpm_wait_descriptor (int desc) |
994d9841 | 6607 | { |
3fad2ad2 | 6608 | delete_keyboard_wait_descriptor (desc); |
994d9841 NR |
6609 | } |
6610 | ||
4475bec4 PE |
6611 | # endif |
6612 | ||
006c5daa PE |
6613 | # ifdef SIGIO |
6614 | ||
a69281ff RS |
6615 | /* Return nonzero if *MASK has a bit set |
6616 | that corresponds to one of the keyboard input descriptors. */ | |
6617 | ||
ff6daed3 | 6618 | static int |
d3da34e0 | 6619 | keyboard_bit_set (fd_set *mask) |
a69281ff RS |
6620 | { |
6621 | int fd; | |
6622 | ||
3fad2ad2 | 6623 | for (fd = 0; fd <= max_input_desc; fd++) |
a69281ff RS |
6624 | if (FD_ISSET (fd, mask) && FD_ISSET (fd, &input_wait_mask) |
6625 | && !FD_ISSET (fd, &non_keyboard_wait_mask)) | |
6626 | return 1; | |
6627 | ||
6628 | return 0; | |
6629 | } | |
006c5daa | 6630 | # endif |
934e2a68 | 6631 | |
f388c88a | 6632 | #else /* not subprocesses */ |
934e2a68 | 6633 | |
f388c88a EZ |
6634 | /* Defined on msdos.c. */ |
6635 | extern int sys_select (int, SELECT_TYPE *, SELECT_TYPE *, SELECT_TYPE *, | |
6636 | EMACS_TIME *); | |
934e2a68 | 6637 | |
f388c88a EZ |
6638 | /* Implementation of wait_reading_process_output, assuming that there |
6639 | are no subprocesses. Used only by the MS-DOS build. | |
934e2a68 | 6640 | |
f388c88a | 6641 | Wait for timeout to elapse and/or keyboard input to be available. |
934e2a68 | 6642 | |
f388c88a EZ |
6643 | time_limit is: |
6644 | timeout in seconds, or | |
6645 | zero for no limit, or | |
6646 | -1 means gobble data immediately available but don't wait for any. | |
934e2a68 | 6647 | |
f388c88a EZ |
6648 | read_kbd is a Lisp_Object: |
6649 | 0 to ignore keyboard input, or | |
6650 | 1 to return when input is available, or | |
6651 | -1 means caller will actually read the input, so don't throw to | |
6652 | the quit handler. | |
934e2a68 | 6653 | |
f388c88a EZ |
6654 | see full version for other parameters. We know that wait_proc will |
6655 | always be NULL, since `subprocesses' isn't defined. | |
934e2a68 | 6656 | |
f388c88a EZ |
6657 | do_display != 0 means redisplay should be done to show subprocess |
6658 | output that arrives. | |
934e2a68 | 6659 | |
f388c88a EZ |
6660 | Return true if we received input from any process. */ |
6661 | ||
6662 | int | |
1408902e EZ |
6663 | wait_reading_process_output (int time_limit, int microsecs, int read_kbd, |
6664 | int do_display, | |
6665 | Lisp_Object wait_for_cell, | |
6666 | struct Lisp_Process *wait_proc, int just_wait_proc) | |
d0d6b7c5 | 6667 | { |
f388c88a EZ |
6668 | register int nfds; |
6669 | EMACS_TIME end_time, timeout; | |
6670 | SELECT_TYPE waitchannels; | |
6671 | int xerrno; | |
d0d6b7c5 | 6672 | |
f388c88a EZ |
6673 | /* What does time_limit really mean? */ |
6674 | if (time_limit || microsecs) | |
6675 | { | |
6676 | EMACS_GET_TIME (end_time); | |
6677 | EMACS_SET_SECS_USECS (timeout, time_limit, microsecs); | |
6678 | EMACS_ADD_TIME (end_time, end_time, timeout); | |
6679 | } | |
84af9896 | 6680 | |
f388c88a EZ |
6681 | /* Turn off periodic alarms (in case they are in use) |
6682 | and then turn off any other atimers, | |
6683 | because the select emulator uses alarms. */ | |
6684 | stop_polling (); | |
6685 | turn_on_atimers (0); | |
d0d6b7c5 | 6686 | |
f388c88a EZ |
6687 | while (1) |
6688 | { | |
6689 | int timeout_reduced_for_timers = 0; | |
dd2281ae | 6690 | |
f388c88a EZ |
6691 | /* If calling from keyboard input, do not quit |
6692 | since we want to return C-g as an input character. | |
6693 | Otherwise, do pending quit if requested. */ | |
6694 | if (read_kbd >= 0) | |
6695 | QUIT; | |
bad49fc7 | 6696 | |
f388c88a EZ |
6697 | /* Exit now if the cell we're waiting for became non-nil. */ |
6698 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) | |
6699 | break; | |
0a65b032 | 6700 | |
bae8d137 RS |
6701 | /* Compute time from now till when time limit is up */ |
6702 | /* Exit if already run out */ | |
52fd88d3 EZ |
6703 | if (time_limit == -1) |
6704 | { | |
6705 | /* -1 specified for timeout means | |
6706 | gobble output available now | |
6707 | but don't wait at all. */ | |
6708 | ||
6709 | EMACS_SET_SECS_USECS (timeout, 0, 0); | |
6710 | } | |
6711 | else if (time_limit || microsecs) | |
6720a7fb | 6712 | { |
f694e5d2 KH |
6713 | EMACS_GET_TIME (timeout); |
6714 | EMACS_SUB_TIME (timeout, end_time, timeout); | |
6715 | if (EMACS_TIME_NEG_P (timeout)) | |
6720a7fb JB |
6716 | break; |
6717 | } | |
52fd88d3 EZ |
6718 | else |
6719 | { | |
6720 | EMACS_SET_SECS_USECS (timeout, 100000, 0); | |
6721 | } | |
6720a7fb | 6722 | |
bae8d137 RS |
6723 | /* If our caller will not immediately handle keyboard events, |
6724 | run timer events directly. | |
6725 | (Callers that will immediately read keyboard events | |
6726 | call timer_delay on their own.) */ | |
f3fbd155 | 6727 | if (NILP (wait_for_cell)) |
bae8d137 RS |
6728 | { |
6729 | EMACS_TIME timer_delay; | |
0a65b032 | 6730 | |
9baacf76 | 6731 | do |
0a65b032 | 6732 | { |
9baacf76 | 6733 | int old_timers_run = timers_run; |
f868cd8a | 6734 | timer_delay = timer_check (); |
9baacf76 GM |
6735 | if (timers_run != old_timers_run && do_display) |
6736 | /* We must retry, since a timer may have requeued itself | |
6737 | and that could alter the time delay. */ | |
3007ebfb | 6738 | redisplay_preserve_echo_area (14); |
9baacf76 GM |
6739 | else |
6740 | break; | |
0a65b032 | 6741 | } |
9baacf76 | 6742 | while (!detect_input_pending ()); |
0a65b032 | 6743 | |
52fd88d3 | 6744 | /* If there is unread keyboard input, also return. */ |
b89a415a | 6745 | if (read_kbd != 0 |
52fd88d3 EZ |
6746 | && requeued_events_pending_p ()) |
6747 | break; | |
6748 | ||
f694e5d2 | 6749 | if (! EMACS_TIME_NEG_P (timer_delay) && time_limit != -1) |
bae8d137 RS |
6750 | { |
6751 | EMACS_TIME difference; | |
f694e5d2 | 6752 | EMACS_SUB_TIME (difference, timer_delay, timeout); |
bae8d137 RS |
6753 | if (EMACS_TIME_NEG_P (difference)) |
6754 | { | |
f694e5d2 | 6755 | timeout = timer_delay; |
bae8d137 RS |
6756 | timeout_reduced_for_timers = 1; |
6757 | } | |
6758 | } | |
6759 | } | |
6760 | ||
6720a7fb JB |
6761 | /* Cause C-g and alarm signals to take immediate action, |
6762 | and cause input available signals to zero out timeout. */ | |
b89a415a | 6763 | if (read_kbd < 0) |
6720a7fb JB |
6764 | set_waiting_for_input (&timeout); |
6765 | ||
0a65b032 RS |
6766 | /* Wait till there is something to do. */ |
6767 | ||
b89a415a | 6768 | if (! read_kbd && NILP (wait_for_cell)) |
0a65b032 RS |
6769 | FD_ZERO (&waitchannels); |
6770 | else | |
6771 | FD_SET (0, &waitchannels); | |
6772 | ||
ff11dfa1 | 6773 | /* If a frame has been newly mapped and needs updating, |
6720a7fb | 6774 | reprocess its display stuff. */ |
5164ee8e | 6775 | if (frame_garbaged && do_display) |
0a65b032 RS |
6776 | { |
6777 | clear_waiting_for_input (); | |
3007ebfb | 6778 | redisplay_preserve_echo_area (15); |
b89a415a | 6779 | if (read_kbd < 0) |
0a65b032 RS |
6780 | set_waiting_for_input (&timeout); |
6781 | } | |
6720a7fb | 6782 | |
b89a415a | 6783 | if (read_kbd && detect_input_pending ()) |
1861b214 RS |
6784 | { |
6785 | nfds = 0; | |
6786 | FD_ZERO (&waitchannels); | |
6787 | } | |
6788 | else | |
6789 | nfds = select (1, &waitchannels, (SELECT_TYPE *)0, (SELECT_TYPE *)0, | |
6790 | &timeout); | |
f694e5d2 KH |
6791 | |
6792 | xerrno = errno; | |
6720a7fb JB |
6793 | |
6794 | /* Make C-g and alarm signals set flags again */ | |
6795 | clear_waiting_for_input (); | |
6796 | ||
6797 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 6798 | do_pending_window_change (0); |
6720a7fb | 6799 | |
f694e5d2 KH |
6800 | if (time_limit && nfds == 0 && ! timeout_reduced_for_timers) |
6801 | /* We waited the full specified time, so return now. */ | |
6802 | break; | |
6803 | ||
6720a7fb JB |
6804 | if (nfds == -1) |
6805 | { | |
6806 | /* If the system call was interrupted, then go around the | |
6807 | loop again. */ | |
f694e5d2 | 6808 | if (xerrno == EINTR) |
8db121c4 | 6809 | FD_ZERO (&waitchannels); |
f694e5d2 | 6810 | else |
68c45bf0 | 6811 | error ("select error: %s", emacs_strerror (xerrno)); |
6720a7fb | 6812 | } |
6720a7fb | 6813 | |
f694e5d2 KH |
6814 | /* Check for keyboard input */ |
6815 | ||
b89a415a | 6816 | if (read_kbd |
78c1afb6 | 6817 | && detect_input_pending_run_timers (do_display)) |
f694e5d2 | 6818 | { |
78c1afb6 | 6819 | swallow_events (do_display); |
f694e5d2 | 6820 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 | 6821 | break; |
78c1afb6 EZ |
6822 | } |
6823 | ||
52fd88d3 | 6824 | /* If there is unread keyboard input, also return. */ |
b89a415a | 6825 | if (read_kbd |
52fd88d3 EZ |
6826 | && requeued_events_pending_p ()) |
6827 | break; | |
6828 | ||
f854a00b RS |
6829 | /* If wait_for_cell. check for keyboard input |
6830 | but don't run any timers. | |
6831 | ??? (It seems wrong to me to check for keyboard | |
6832 | input at all when wait_for_cell, but the code | |
6833 | has been this way since July 1994. | |
6834 | Try changing this after version 19.31.) */ | |
f3fbd155 | 6835 | if (! NILP (wait_for_cell) |
f854a00b RS |
6836 | && detect_input_pending ()) |
6837 | { | |
6838 | swallow_events (do_display); | |
6839 | if (detect_input_pending ()) | |
6840 | break; | |
6841 | } | |
6842 | ||
0a65b032 | 6843 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 6844 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
0a65b032 | 6845 | break; |
6720a7fb JB |
6846 | } |
6847 | ||
a87b802f JB |
6848 | start_polling (); |
6849 | ||
6720a7fb JB |
6850 | return 0; |
6851 | } | |
6852 | ||
f388c88a EZ |
6853 | #endif /* not subprocesses */ |
6854 | ||
6855 | /* The following functions are needed even if async subprocesses are | |
6856 | not supported. Some of them are no-op stubs in that case. */ | |
6720a7fb | 6857 | |
01faa934 DN |
6858 | /* Add DESC to the set of keyboard input descriptors. */ |
6859 | ||
6860 | void | |
6861 | add_keyboard_wait_descriptor (int desc) | |
6862 | { | |
bf05eed6 | 6863 | #ifdef subprocesses /* actually means "not MSDOS" */ |
01faa934 DN |
6864 | FD_SET (desc, &input_wait_mask); |
6865 | FD_SET (desc, &non_process_wait_mask); | |
3fad2ad2 J |
6866 | if (desc > max_input_desc) |
6867 | max_input_desc = desc; | |
bf05eed6 | 6868 | #endif |
01faa934 DN |
6869 | } |
6870 | ||
6871 | /* From now on, do not expect DESC to give keyboard input. */ | |
6872 | ||
6873 | void | |
6874 | delete_keyboard_wait_descriptor (int desc) | |
6875 | { | |
bf05eed6 | 6876 | #ifdef subprocesses |
01faa934 | 6877 | int fd; |
3fad2ad2 | 6878 | int lim = max_input_desc; |
01faa934 DN |
6879 | |
6880 | FD_CLR (desc, &input_wait_mask); | |
6881 | FD_CLR (desc, &non_process_wait_mask); | |
6882 | ||
3fad2ad2 | 6883 | if (desc == max_input_desc) |
01faa934 | 6884 | for (fd = 0; fd < lim; fd++) |
3fad2ad2 J |
6885 | if (FD_ISSET (fd, &input_wait_mask) || FD_ISSET (fd, &write_mask)) |
6886 | max_input_desc = fd; | |
bf05eed6 | 6887 | #endif |
01faa934 DN |
6888 | } |
6889 | ||
fc549af9 EZ |
6890 | /* Setup coding systems of PROCESS. */ |
6891 | ||
6892 | void | |
6893 | setup_process_coding_systems (Lisp_Object process) | |
6894 | { | |
6895 | #ifdef subprocesses | |
6896 | struct Lisp_Process *p = XPROCESS (process); | |
6897 | int inch = p->infd; | |
6898 | int outch = p->outfd; | |
6899 | Lisp_Object coding_system; | |
6900 | ||
6901 | if (inch < 0 || outch < 0) | |
6902 | return; | |
6903 | ||
6904 | if (!proc_decode_coding_system[inch]) | |
6905 | proc_decode_coding_system[inch] | |
6906 | = (struct coding_system *) xmalloc (sizeof (struct coding_system)); | |
6907 | coding_system = p->decode_coding_system; | |
6908 | if (! NILP (p->filter)) | |
6909 | ; | |
6910 | else if (BUFFERP (p->buffer)) | |
6911 | { | |
4b4deea2 | 6912 | if (NILP (BVAR (XBUFFER (p->buffer), enable_multibyte_characters))) |
fc549af9 EZ |
6913 | coding_system = raw_text_coding_system (coding_system); |
6914 | } | |
6915 | setup_coding_system (coding_system, proc_decode_coding_system[inch]); | |
6916 | ||
6917 | if (!proc_encode_coding_system[outch]) | |
6918 | proc_encode_coding_system[outch] | |
6919 | = (struct coding_system *) xmalloc (sizeof (struct coding_system)); | |
6920 | setup_coding_system (p->encode_coding_system, | |
6921 | proc_encode_coding_system[outch]); | |
6922 | #endif | |
6923 | } | |
6924 | ||
6925 | /* Close all descriptors currently in use for communication | |
6926 | with subprocess. This is used in a newly-forked subprocess | |
6927 | to get rid of irrelevant descriptors. */ | |
6928 | ||
6929 | void | |
6930 | close_process_descs (void) | |
6931 | { | |
6932 | #ifndef DOS_NT | |
6933 | int i; | |
6934 | for (i = 0; i < MAXDESC; i++) | |
6935 | { | |
6936 | Lisp_Object process; | |
6937 | process = chan_process[i]; | |
6938 | if (!NILP (process)) | |
6939 | { | |
6940 | int in = XPROCESS (process)->infd; | |
6941 | int out = XPROCESS (process)->outfd; | |
6942 | if (in >= 0) | |
6943 | emacs_close (in); | |
6944 | if (out >= 0 && in != out) | |
6945 | emacs_close (out); | |
6946 | } | |
6947 | } | |
6948 | #endif | |
6949 | } | |
6950 | ||
6720a7fb | 6951 | DEFUN ("get-buffer-process", Fget_buffer_process, Sget_buffer_process, 1, 1, 0, |
f388c88a EZ |
6952 | doc: /* Return the (or a) process associated with BUFFER. |
6953 | BUFFER may be a buffer or the name of one. */) | |
6954 | (register Lisp_Object buffer) | |
6720a7fb | 6955 | { |
f388c88a EZ |
6956 | #ifdef subprocesses |
6957 | register Lisp_Object buf, tail, proc; | |
6958 | ||
6959 | if (NILP (buffer)) return Qnil; | |
6960 | buf = Fget_buffer (buffer); | |
6961 | if (NILP (buf)) return Qnil; | |
6962 | ||
6963 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) | |
6964 | { | |
6965 | proc = Fcdr (XCAR (tail)); | |
6966 | if (PROCESSP (proc) && EQ (XPROCESS (proc)->buffer, buf)) | |
6967 | return proc; | |
6968 | } | |
6969 | #endif /* subprocesses */ | |
6720a7fb JB |
6970 | return Qnil; |
6971 | } | |
6972 | ||
52a1b894 | 6973 | DEFUN ("process-inherit-coding-system-flag", |
fdb82f93 PJ |
6974 | Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag, |
6975 | 1, 1, 0, | |
f388c88a EZ |
6976 | doc: /* Return the value of inherit-coding-system flag for PROCESS. |
6977 | If this flag is t, `buffer-file-coding-system' of the buffer | |
6978 | associated with PROCESS will inherit the coding system used to decode | |
6979 | the process output. */) | |
5842a27b | 6980 | (register Lisp_Object process) |
52a1b894 | 6981 | { |
f388c88a EZ |
6982 | #ifdef subprocesses |
6983 | CHECK_PROCESS (process); | |
6984 | return XPROCESS (process)->inherit_coding_system_flag ? Qt : Qnil; | |
6985 | #else | |
52a1b894 EZ |
6986 | /* Ignore the argument and return the value of |
6987 | inherit-process-coding-system. */ | |
6988 | return inherit_process_coding_system ? Qt : Qnil; | |
f388c88a | 6989 | #endif |
52a1b894 EZ |
6990 | } |
6991 | ||
6720a7fb | 6992 | /* Kill all processes associated with `buffer'. |
f388c88a | 6993 | If `buffer' is nil, kill all processes */ |
6720a7fb | 6994 | |
d9bb0c32 | 6995 | void |
f388c88a | 6996 | kill_buffer_processes (Lisp_Object buffer) |
6720a7fb | 6997 | { |
f388c88a EZ |
6998 | #ifdef subprocesses |
6999 | Lisp_Object tail, proc; | |
7000 | ||
7001 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) | |
7002 | { | |
7003 | proc = XCDR (XCAR (tail)); | |
7004 | if (PROCESSP (proc) | |
7005 | && (NILP (buffer) || EQ (XPROCESS (proc)->buffer, buffer))) | |
7006 | { | |
7007 | if (NETCONN_P (proc) || SERIALCONN_P (proc)) | |
7008 | Fdelete_process (proc); | |
7009 | else if (XPROCESS (proc)->infd >= 0) | |
7010 | process_send_signal (proc, SIGHUP, Qnil, 1); | |
7011 | } | |
7012 | } | |
7013 | #else /* subprocesses */ | |
7014 | /* Since we have no subprocesses, this does nothing. */ | |
7015 | #endif /* subprocesses */ | |
6720a7fb JB |
7016 | } |
7017 | ||
a7ca3326 | 7018 | DEFUN ("waiting-for-user-input-p", Fwaiting_for_user_input_p, |
16a97296 | 7019 | Swaiting_for_user_input_p, 0, 0, 0, |
77defa9a EZ |
7020 | doc: /* Returns non-nil if Emacs is waiting for input from the user. |
7021 | This is intended for use by asynchronous process output filters and sentinels. */) | |
7022 | (void) | |
7023 | { | |
7024 | #ifdef subprocesses | |
7025 | return (waiting_for_user_input_p ? Qt : Qnil); | |
7026 | #else | |
7027 | return Qnil; | |
7028 | #endif | |
7029 | } | |
7030 | ||
d568829b EZ |
7031 | /* Stop reading input from keyboard sources. */ |
7032 | ||
7033 | void | |
7034 | hold_keyboard_input (void) | |
7035 | { | |
7036 | kbd_is_on_hold = 1; | |
7037 | } | |
7038 | ||
7039 | /* Resume reading input from keyboard sources. */ | |
7040 | ||
7041 | void | |
7042 | unhold_keyboard_input (void) | |
7043 | { | |
7044 | kbd_is_on_hold = 0; | |
7045 | } | |
7046 | ||
7047 | /* Return non-zero if keyboard input is on hold, zero otherwise. */ | |
7048 | ||
7049 | int | |
7050 | kbd_on_hold_p (void) | |
7051 | { | |
7052 | return kbd_is_on_hold; | |
7053 | } | |
7054 | ||
f388c88a EZ |
7055 | \f |
7056 | /* Enumeration of and access to system processes a-la ps(1). */ | |
7057 | ||
934e2a68 EZ |
7058 | DEFUN ("list-system-processes", Flist_system_processes, Slist_system_processes, |
7059 | 0, 0, 0, | |
7060 | doc: /* Return a list of numerical process IDs of all running processes. | |
7061 | If this functionality is unsupported, return nil. | |
7062 | ||
f388c88a EZ |
7063 | See `process-attributes' for getting attributes of a process given its ID. */) |
7064 | (void) | |
7065 | { | |
7066 | return list_system_processes (); | |
7067 | } | |
7068 | ||
7069 | DEFUN ("process-attributes", Fprocess_attributes, | |
7070 | Sprocess_attributes, 1, 1, 0, | |
7071 | doc: /* Return attributes of the process given by its PID, a number. | |
7072 | ||
7073 | Value is an alist where each element is a cons cell of the form | |
7074 | ||
7075 | \(KEY . VALUE) | |
7076 | ||
7077 | If this functionality is unsupported, the value is nil. | |
7078 | ||
7079 | See `list-system-processes' for getting a list of all process IDs. | |
7080 | ||
7081 | The KEYs of the attributes that this function may return are listed | |
7082 | below, together with the type of the associated VALUE (in parentheses). | |
7083 | Not all platforms support all of these attributes; unsupported | |
7084 | attributes will not appear in the returned alist. | |
7085 | Unless explicitly indicated otherwise, numbers can have either | |
7086 | integer or floating point values. | |
7087 | ||
7088 | euid -- Effective user User ID of the process (number) | |
7089 | user -- User name corresponding to euid (string) | |
7090 | egid -- Effective user Group ID of the process (number) | |
7091 | group -- Group name corresponding to egid (string) | |
7092 | comm -- Command name (executable name only) (string) | |
7093 | state -- Process state code, such as "S", "R", or "T" (string) | |
7094 | ppid -- Parent process ID (number) | |
7095 | pgrp -- Process group ID (number) | |
7096 | sess -- Session ID, i.e. process ID of session leader (number) | |
7097 | ttname -- Controlling tty name (string) | |
7098 | tpgid -- ID of foreground process group on the process's tty (number) | |
7099 | minflt -- number of minor page faults (number) | |
7100 | majflt -- number of major page faults (number) | |
7101 | cminflt -- cumulative number of minor page faults (number) | |
7102 | cmajflt -- cumulative number of major page faults (number) | |
7103 | utime -- user time used by the process, in the (HIGH LOW USEC) format | |
7104 | stime -- system time used by the process, in the (HIGH LOW USEC) format | |
7105 | time -- sum of utime and stime, in the (HIGH LOW USEC) format | |
7106 | cutime -- user time used by the process and its children, (HIGH LOW USEC) | |
7107 | cstime -- system time used by the process and its children, (HIGH LOW USEC) | |
7108 | ctime -- sum of cutime and cstime, in the (HIGH LOW USEC) format | |
7109 | pri -- priority of the process (number) | |
7110 | nice -- nice value of the process (number) | |
7111 | thcount -- process thread count (number) | |
7112 | start -- time the process started, in the (HIGH LOW USEC) format | |
7113 | vsize -- virtual memory size of the process in KB's (number) | |
7114 | rss -- resident set size of the process in KB's (number) | |
7115 | etime -- elapsed time the process is running, in (HIGH LOW USEC) format | |
7116 | pcpu -- percents of CPU time used by the process (floating-point number) | |
7117 | pmem -- percents of total physical memory used by process's resident set | |
7118 | (floating-point number) | |
7119 | args -- command line which invoked the process (string). */) | |
7120 | ( Lisp_Object pid) | |
7121 | { | |
7122 | return system_process_attributes (pid); | |
7123 | } | |
7124 | ||
7125 | \f | |
7126 | void | |
7127 | init_process (void) | |
7128 | { | |
7129 | #ifdef subprocesses | |
7130 | register int i; | |
7131 | ||
7132 | inhibit_sentinels = 0; | |
7133 | ||
7134 | #ifdef SIGCHLD | |
7135 | #ifndef CANNOT_DUMP | |
7136 | if (! noninteractive || initialized) | |
7137 | #endif | |
7138 | signal (SIGCHLD, sigchld_handler); | |
7139 | #endif | |
7140 | ||
7141 | FD_ZERO (&input_wait_mask); | |
7142 | FD_ZERO (&non_keyboard_wait_mask); | |
7143 | FD_ZERO (&non_process_wait_mask); | |
3fad2ad2 | 7144 | FD_ZERO (&write_mask); |
f388c88a | 7145 | max_process_desc = 0; |
3fad2ad2 | 7146 | memset (fd_callback_info, 0, sizeof (fd_callback_info)); |
f388c88a EZ |
7147 | |
7148 | #ifdef NON_BLOCKING_CONNECT | |
7149 | FD_ZERO (&connect_wait_mask); | |
7150 | num_pending_connects = 0; | |
7151 | #endif | |
7152 | ||
7153 | #ifdef ADAPTIVE_READ_BUFFERING | |
7154 | process_output_delay_count = 0; | |
7155 | process_output_skip = 0; | |
7156 | #endif | |
7157 | ||
7158 | /* Don't do this, it caused infinite select loops. The display | |
7159 | method should call add_keyboard_wait_descriptor on stdin if it | |
7160 | needs that. */ | |
7161 | #if 0 | |
7162 | FD_SET (0, &input_wait_mask); | |
7163 | #endif | |
7164 | ||
7165 | Vprocess_alist = Qnil; | |
7166 | #ifdef SIGCHLD | |
7167 | deleted_pid_list = Qnil; | |
7168 | #endif | |
7169 | for (i = 0; i < MAXDESC; i++) | |
7170 | { | |
7171 | chan_process[i] = Qnil; | |
7172 | proc_buffered_char[i] = -1; | |
7173 | } | |
7174 | memset (proc_decode_coding_system, 0, sizeof proc_decode_coding_system); | |
7175 | memset (proc_encode_coding_system, 0, sizeof proc_encode_coding_system); | |
7176 | #ifdef DATAGRAM_SOCKETS | |
7177 | memset (datagram_address, 0, sizeof datagram_address); | |
7178 | #endif | |
7179 | ||
f388c88a EZ |
7180 | { |
7181 | Lisp_Object subfeatures = Qnil; | |
7182 | const struct socket_options *sopt; | |
7183 | ||
7184 | #define ADD_SUBFEATURE(key, val) \ | |
7185 | subfeatures = pure_cons (pure_cons (key, pure_cons (val, Qnil)), subfeatures) | |
7186 | ||
7187 | #ifdef NON_BLOCKING_CONNECT | |
7188 | ADD_SUBFEATURE (QCnowait, Qt); | |
7189 | #endif | |
7190 | #ifdef DATAGRAM_SOCKETS | |
7191 | ADD_SUBFEATURE (QCtype, Qdatagram); | |
7192 | #endif | |
7193 | #ifdef HAVE_SEQPACKET | |
7194 | ADD_SUBFEATURE (QCtype, Qseqpacket); | |
7195 | #endif | |
7196 | #ifdef HAVE_LOCAL_SOCKETS | |
7197 | ADD_SUBFEATURE (QCfamily, Qlocal); | |
7198 | #endif | |
7199 | ADD_SUBFEATURE (QCfamily, Qipv4); | |
7200 | #ifdef AF_INET6 | |
7201 | ADD_SUBFEATURE (QCfamily, Qipv6); | |
7202 | #endif | |
7203 | #ifdef HAVE_GETSOCKNAME | |
7204 | ADD_SUBFEATURE (QCservice, Qt); | |
7205 | #endif | |
7206 | #if defined(O_NONBLOCK) || defined(O_NDELAY) | |
7207 | ADD_SUBFEATURE (QCserver, Qt); | |
7208 | #endif | |
7209 | ||
7210 | for (sopt = socket_options; sopt->name; sopt++) | |
7211 | subfeatures = pure_cons (intern_c_string (sopt->name), subfeatures); | |
7212 | ||
7213 | Fprovide (intern_c_string ("make-network-process"), subfeatures); | |
7214 | } | |
f388c88a EZ |
7215 | |
7216 | #if defined (DARWIN_OS) | |
7217 | /* PTYs are broken on Darwin < 6, but are sometimes useful for interactive | |
7218 | processes. As such, we only change the default value. */ | |
7219 | if (initialized) | |
7220 | { | |
f44bd759 PE |
7221 | char const *release = (STRINGP (Voperating_system_release) |
7222 | ? SSDATA (Voperating_system_release) | |
7223 | : 0); | |
f388c88a EZ |
7224 | if (!release || !release[0] || (release[0] < MIN_PTY_KERNEL_VERSION |
7225 | && release[1] == '.')) { | |
7226 | Vprocess_connection_type = Qnil; | |
7227 | } | |
7228 | } | |
7229 | #endif | |
7230 | #endif /* subprocesses */ | |
7231 | kbd_is_on_hold = 0; | |
7232 | } | |
7233 | ||
7234 | void | |
7235 | syms_of_process (void) | |
7236 | { | |
7237 | #ifdef subprocesses | |
7238 | ||
7239 | Qprocessp = intern_c_string ("processp"); | |
7240 | staticpro (&Qprocessp); | |
7241 | Qrun = intern_c_string ("run"); | |
7242 | staticpro (&Qrun); | |
7243 | Qstop = intern_c_string ("stop"); | |
7244 | staticpro (&Qstop); | |
7245 | Qsignal = intern_c_string ("signal"); | |
7246 | staticpro (&Qsignal); | |
7247 | ||
7248 | /* Qexit is already staticpro'd by syms_of_eval; don't staticpro it | |
7249 | here again. | |
934e2a68 | 7250 | |
f388c88a EZ |
7251 | Qexit = intern_c_string ("exit"); |
7252 | staticpro (&Qexit); */ | |
934e2a68 | 7253 | |
f388c88a EZ |
7254 | Qopen = intern_c_string ("open"); |
7255 | staticpro (&Qopen); | |
7256 | Qclosed = intern_c_string ("closed"); | |
7257 | staticpro (&Qclosed); | |
7258 | Qconnect = intern_c_string ("connect"); | |
7259 | staticpro (&Qconnect); | |
7260 | Qfailed = intern_c_string ("failed"); | |
7261 | staticpro (&Qfailed); | |
7262 | Qlisten = intern_c_string ("listen"); | |
7263 | staticpro (&Qlisten); | |
7264 | Qlocal = intern_c_string ("local"); | |
7265 | staticpro (&Qlocal); | |
7266 | Qipv4 = intern_c_string ("ipv4"); | |
7267 | staticpro (&Qipv4); | |
7268 | #ifdef AF_INET6 | |
7269 | Qipv6 = intern_c_string ("ipv6"); | |
7270 | staticpro (&Qipv6); | |
7271 | #endif | |
7272 | Qdatagram = intern_c_string ("datagram"); | |
7273 | staticpro (&Qdatagram); | |
7274 | Qseqpacket = intern_c_string ("seqpacket"); | |
7275 | staticpro (&Qseqpacket); | |
934e2a68 | 7276 | |
f388c88a EZ |
7277 | QCport = intern_c_string (":port"); |
7278 | staticpro (&QCport); | |
7279 | QCspeed = intern_c_string (":speed"); | |
7280 | staticpro (&QCspeed); | |
7281 | QCprocess = intern_c_string (":process"); | |
7282 | staticpro (&QCprocess); | |
934e2a68 | 7283 | |
f388c88a EZ |
7284 | QCbytesize = intern_c_string (":bytesize"); |
7285 | staticpro (&QCbytesize); | |
7286 | QCstopbits = intern_c_string (":stopbits"); | |
7287 | staticpro (&QCstopbits); | |
7288 | QCparity = intern_c_string (":parity"); | |
7289 | staticpro (&QCparity); | |
7290 | Qodd = intern_c_string ("odd"); | |
7291 | staticpro (&Qodd); | |
7292 | Qeven = intern_c_string ("even"); | |
7293 | staticpro (&Qeven); | |
7294 | QCflowcontrol = intern_c_string (":flowcontrol"); | |
7295 | staticpro (&QCflowcontrol); | |
7296 | Qhw = intern_c_string ("hw"); | |
7297 | staticpro (&Qhw); | |
7298 | Qsw = intern_c_string ("sw"); | |
7299 | staticpro (&Qsw); | |
7300 | QCsummary = intern_c_string (":summary"); | |
7301 | staticpro (&QCsummary); | |
934e2a68 | 7302 | |
f388c88a EZ |
7303 | Qreal = intern_c_string ("real"); |
7304 | staticpro (&Qreal); | |
7305 | Qnetwork = intern_c_string ("network"); | |
7306 | staticpro (&Qnetwork); | |
7307 | Qserial = intern_c_string ("serial"); | |
7308 | staticpro (&Qserial); | |
7309 | QCbuffer = intern_c_string (":buffer"); | |
7310 | staticpro (&QCbuffer); | |
7311 | QChost = intern_c_string (":host"); | |
7312 | staticpro (&QChost); | |
7313 | QCservice = intern_c_string (":service"); | |
7314 | staticpro (&QCservice); | |
7315 | QClocal = intern_c_string (":local"); | |
7316 | staticpro (&QClocal); | |
7317 | QCremote = intern_c_string (":remote"); | |
7318 | staticpro (&QCremote); | |
7319 | QCcoding = intern_c_string (":coding"); | |
7320 | staticpro (&QCcoding); | |
7321 | QCserver = intern_c_string (":server"); | |
7322 | staticpro (&QCserver); | |
7323 | QCnowait = intern_c_string (":nowait"); | |
7324 | staticpro (&QCnowait); | |
7325 | QCsentinel = intern_c_string (":sentinel"); | |
7326 | staticpro (&QCsentinel); | |
7327 | QClog = intern_c_string (":log"); | |
7328 | staticpro (&QClog); | |
7329 | QCnoquery = intern_c_string (":noquery"); | |
7330 | staticpro (&QCnoquery); | |
7331 | QCstop = intern_c_string (":stop"); | |
7332 | staticpro (&QCstop); | |
7333 | QCoptions = intern_c_string (":options"); | |
7334 | staticpro (&QCoptions); | |
7335 | QCplist = intern_c_string (":plist"); | |
7336 | staticpro (&QCplist); | |
934e2a68 | 7337 | |
f388c88a EZ |
7338 | Qlast_nonmenu_event = intern_c_string ("last-nonmenu-event"); |
7339 | staticpro (&Qlast_nonmenu_event); | |
934e2a68 | 7340 | |
f388c88a EZ |
7341 | staticpro (&Vprocess_alist); |
7342 | #ifdef SIGCHLD | |
7343 | staticpro (&deleted_pid_list); | |
7344 | #endif | |
934e2a68 | 7345 | |
f388c88a | 7346 | #endif /* subprocesses */ |
6720a7fb | 7347 | |
d67b4f80 | 7348 | QCname = intern_c_string (":name"); |
8c57b2e5 | 7349 | staticpro (&QCname); |
d67b4f80 | 7350 | QCtype = intern_c_string (":type"); |
6a1bab0e | 7351 | staticpro (&QCtype); |
f388c88a | 7352 | |
d67b4f80 | 7353 | Qeuid = intern_c_string ("euid"); |
6a1bab0e | 7354 | staticpro (&Qeuid); |
d67b4f80 | 7355 | Qegid = intern_c_string ("egid"); |
6a1bab0e | 7356 | staticpro (&Qegid); |
d67b4f80 | 7357 | Quser = intern_c_string ("user"); |
6a1bab0e | 7358 | staticpro (&Quser); |
d67b4f80 | 7359 | Qgroup = intern_c_string ("group"); |
6a1bab0e | 7360 | staticpro (&Qgroup); |
d67b4f80 | 7361 | Qcomm = intern_c_string ("comm"); |
6a1bab0e | 7362 | staticpro (&Qcomm); |
d67b4f80 | 7363 | Qstate = intern_c_string ("state"); |
6a1bab0e | 7364 | staticpro (&Qstate); |
d67b4f80 | 7365 | Qppid = intern_c_string ("ppid"); |
6a1bab0e | 7366 | staticpro (&Qppid); |
d67b4f80 | 7367 | Qpgrp = intern_c_string ("pgrp"); |
6a1bab0e | 7368 | staticpro (&Qpgrp); |
d67b4f80 | 7369 | Qsess = intern_c_string ("sess"); |
6a1bab0e | 7370 | staticpro (&Qsess); |
d67b4f80 | 7371 | Qttname = intern_c_string ("ttname"); |
6a1bab0e | 7372 | staticpro (&Qttname); |
d67b4f80 | 7373 | Qtpgid = intern_c_string ("tpgid"); |
6a1bab0e | 7374 | staticpro (&Qtpgid); |
d67b4f80 | 7375 | Qminflt = intern_c_string ("minflt"); |
6a1bab0e | 7376 | staticpro (&Qminflt); |
d67b4f80 | 7377 | Qmajflt = intern_c_string ("majflt"); |
6a1bab0e | 7378 | staticpro (&Qmajflt); |
d67b4f80 | 7379 | Qcminflt = intern_c_string ("cminflt"); |
6a1bab0e | 7380 | staticpro (&Qcminflt); |
d67b4f80 | 7381 | Qcmajflt = intern_c_string ("cmajflt"); |
6a1bab0e | 7382 | staticpro (&Qcmajflt); |
d67b4f80 | 7383 | Qutime = intern_c_string ("utime"); |
6a1bab0e | 7384 | staticpro (&Qutime); |
d67b4f80 | 7385 | Qstime = intern_c_string ("stime"); |
6a1bab0e | 7386 | staticpro (&Qstime); |
d67b4f80 | 7387 | Qtime = intern_c_string ("time"); |
6a1bab0e | 7388 | staticpro (&Qtime); |
d67b4f80 | 7389 | Qcutime = intern_c_string ("cutime"); |
6a1bab0e | 7390 | staticpro (&Qcutime); |
d67b4f80 | 7391 | Qcstime = intern_c_string ("cstime"); |
6a1bab0e | 7392 | staticpro (&Qcstime); |
d67b4f80 | 7393 | Qctime = intern_c_string ("ctime"); |
6a1bab0e | 7394 | staticpro (&Qctime); |
d67b4f80 | 7395 | Qpri = intern_c_string ("pri"); |
6a1bab0e | 7396 | staticpro (&Qpri); |
d67b4f80 | 7397 | Qnice = intern_c_string ("nice"); |
6a1bab0e | 7398 | staticpro (&Qnice); |
d67b4f80 | 7399 | Qthcount = intern_c_string ("thcount"); |
6a1bab0e | 7400 | staticpro (&Qthcount); |
d67b4f80 | 7401 | Qstart = intern_c_string ("start"); |
6a1bab0e | 7402 | staticpro (&Qstart); |
d67b4f80 | 7403 | Qvsize = intern_c_string ("vsize"); |
6a1bab0e | 7404 | staticpro (&Qvsize); |
d67b4f80 | 7405 | Qrss = intern_c_string ("rss"); |
6a1bab0e | 7406 | staticpro (&Qrss); |
d67b4f80 | 7407 | Qetime = intern_c_string ("etime"); |
6a1bab0e | 7408 | staticpro (&Qetime); |
d67b4f80 | 7409 | Qpcpu = intern_c_string ("pcpu"); |
6a1bab0e | 7410 | staticpro (&Qpcpu); |
d67b4f80 | 7411 | Qpmem = intern_c_string ("pmem"); |
6a1bab0e | 7412 | staticpro (&Qpmem); |
d67b4f80 | 7413 | Qargs = intern_c_string ("args"); |
6a1bab0e | 7414 | staticpro (&Qargs); |
9057ff80 | 7415 | |
29208e82 | 7416 | DEFVAR_BOOL ("delete-exited-processes", delete_exited_processes, |
f388c88a EZ |
7417 | doc: /* *Non-nil means delete processes immediately when they exit. |
7418 | A value of nil means don't delete them until `list-processes' is run. */); | |
7419 | ||
7420 | delete_exited_processes = 1; | |
7421 | ||
462aa963 | 7422 | #ifdef subprocesses |
29208e82 | 7423 | DEFVAR_LISP ("process-connection-type", Vprocess_connection_type, |
f388c88a EZ |
7424 | doc: /* Control type of device used to communicate with subprocesses. |
7425 | Values are nil to use a pipe, or t or `pty' to use a pty. | |
7426 | The value has no effect if the system has no ptys or if all ptys are busy: | |
7427 | then a pipe is used in any case. | |
7428 | The value takes effect when `start-process' is called. */); | |
7429 | Vprocess_connection_type = Qt; | |
7430 | ||
7431 | #ifdef ADAPTIVE_READ_BUFFERING | |
29208e82 | 7432 | DEFVAR_LISP ("process-adaptive-read-buffering", Vprocess_adaptive_read_buffering, |
f388c88a EZ |
7433 | doc: /* If non-nil, improve receive buffering by delaying after short reads. |
7434 | On some systems, when Emacs reads the output from a subprocess, the output data | |
7435 | is read in very small blocks, potentially resulting in very poor performance. | |
7436 | This behavior can be remedied to some extent by setting this variable to a | |
7437 | non-nil value, as it will automatically delay reading from such processes, to | |
7438 | allow them to produce more output before Emacs tries to read it. | |
7439 | If the value is t, the delay is reset after each write to the process; any other | |
7440 | non-nil value means that the delay is not reset on write. | |
7441 | The variable takes effect when `start-process' is called. */); | |
7442 | Vprocess_adaptive_read_buffering = Qt; | |
7443 | #endif | |
7444 | ||
7445 | defsubr (&Sprocessp); | |
7446 | defsubr (&Sget_process); | |
7447 | defsubr (&Sdelete_process); | |
7448 | defsubr (&Sprocess_status); | |
7449 | defsubr (&Sprocess_exit_status); | |
7450 | defsubr (&Sprocess_id); | |
7451 | defsubr (&Sprocess_name); | |
7452 | defsubr (&Sprocess_tty_name); | |
7453 | defsubr (&Sprocess_command); | |
7454 | defsubr (&Sset_process_buffer); | |
7455 | defsubr (&Sprocess_buffer); | |
7456 | defsubr (&Sprocess_mark); | |
7457 | defsubr (&Sset_process_filter); | |
7458 | defsubr (&Sprocess_filter); | |
7459 | defsubr (&Sset_process_sentinel); | |
7460 | defsubr (&Sprocess_sentinel); | |
7461 | defsubr (&Sset_process_window_size); | |
7462 | defsubr (&Sset_process_inherit_coding_system_flag); | |
7463 | defsubr (&Sset_process_query_on_exit_flag); | |
7464 | defsubr (&Sprocess_query_on_exit_flag); | |
7465 | defsubr (&Sprocess_contact); | |
7466 | defsubr (&Sprocess_plist); | |
7467 | defsubr (&Sset_process_plist); | |
f388c88a EZ |
7468 | defsubr (&Sprocess_list); |
7469 | defsubr (&Sstart_process); | |
f388c88a EZ |
7470 | defsubr (&Sserial_process_configure); |
7471 | defsubr (&Smake_serial_process); | |
f388c88a EZ |
7472 | defsubr (&Sset_network_process_option); |
7473 | defsubr (&Smake_network_process); | |
7474 | defsubr (&Sformat_network_address); | |
d23d8608 | 7475 | #if defined(HAVE_NET_IF_H) |
f388c88a EZ |
7476 | #ifdef SIOCGIFCONF |
7477 | defsubr (&Snetwork_interface_list); | |
7478 | #endif | |
7479 | #if defined(SIOCGIFADDR) || defined(SIOCGIFHWADDR) || defined(SIOCGIFFLAGS) | |
7480 | defsubr (&Snetwork_interface_info); | |
7481 | #endif | |
d23d8608 | 7482 | #endif /* defined(HAVE_NET_IF_H) */ |
f388c88a EZ |
7483 | #ifdef DATAGRAM_SOCKETS |
7484 | defsubr (&Sprocess_datagram_address); | |
7485 | defsubr (&Sset_process_datagram_address); | |
7486 | #endif | |
7487 | defsubr (&Saccept_process_output); | |
7488 | defsubr (&Sprocess_send_region); | |
7489 | defsubr (&Sprocess_send_string); | |
7490 | defsubr (&Sinterrupt_process); | |
7491 | defsubr (&Skill_process); | |
7492 | defsubr (&Squit_process); | |
7493 | defsubr (&Sstop_process); | |
7494 | defsubr (&Scontinue_process); | |
7495 | defsubr (&Sprocess_running_child_p); | |
7496 | defsubr (&Sprocess_send_eof); | |
7497 | defsubr (&Ssignal_process); | |
7498 | defsubr (&Swaiting_for_user_input_p); | |
7499 | defsubr (&Sprocess_type); | |
7500 | defsubr (&Sset_process_coding_system); | |
7501 | defsubr (&Sprocess_coding_system); | |
7502 | defsubr (&Sset_process_filter_multibyte); | |
7503 | defsubr (&Sprocess_filter_multibyte_p); | |
7504 | ||
7505 | #endif /* subprocesses */ | |
7506 | ||
6720a7fb | 7507 | defsubr (&Sget_buffer_process); |
52a1b894 | 7508 | defsubr (&Sprocess_inherit_coding_system_flag); |
934e2a68 | 7509 | defsubr (&Slist_system_processes); |
a20878b6 | 7510 | defsubr (&Sprocess_attributes); |
6720a7fb | 7511 | } |