Commit | Line | Data |
---|---|---|
d0d6b7c5 | 1 | /* Asynchronous subprocess control for GNU Emacs. |
95df8112 | 2 | |
ab422c4d PE |
3 | Copyright (C) 1985-1988, 1993-1996, 1998-1999, 2001-2013 Free Software |
4 | 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> |
6a09a33b PE |
23 | |
24 | #define PROCESS_INLINE EXTERN_INLINE | |
25 | ||
d0d6b7c5 JB |
26 | #include <stdio.h> |
27 | #include <errno.h> | |
6c60eb9f | 28 | #include <sys/types.h> /* Some typedefs are used in sys/file.h. */ |
d0d6b7c5 JB |
29 | #include <sys/file.h> |
30 | #include <sys/stat.h> | |
93b4f699 | 31 | #include <unistd.h> |
e98d950b | 32 | #include <fcntl.h> |
e98d950b | 33 | |
0898ca10 JB |
34 | #include "lisp.h" |
35 | ||
f388c88a EZ |
36 | /* Only MS-DOS does not define `subprocesses'. */ |
37 | #ifdef subprocesses | |
38 | ||
d0d6b7c5 JB |
39 | #include <sys/socket.h> |
40 | #include <netdb.h> | |
41 | #include <netinet/in.h> | |
42 | #include <arpa/inet.h> | |
e690ca94 KS |
43 | |
44 | /* Are local (unix) sockets supported? */ | |
4624371d | 45 | #if defined (HAVE_SYS_UN_H) |
e690ca94 KS |
46 | #if !defined (AF_LOCAL) && defined (AF_UNIX) |
47 | #define AF_LOCAL AF_UNIX | |
48 | #endif | |
49 | #ifdef AF_LOCAL | |
50 | #define HAVE_LOCAL_SOCKETS | |
51 | #include <sys/un.h> | |
52 | #endif | |
53 | #endif | |
d0d6b7c5 | 54 | |
d0d6b7c5 | 55 | #include <sys/ioctl.h> |
5e617bc2 | 56 | #if defined (HAVE_NET_IF_H) |
32bc6709 DN |
57 | #include <net/if.h> |
58 | #endif /* HAVE_NET_IF_H */ | |
d0d6b7c5 | 59 | |
5e617bc2 | 60 | #if defined (HAVE_IFADDRS_H) |
377538cb JD |
61 | /* Must be after net/if.h */ |
62 | #include <ifaddrs.h> | |
63 | ||
64 | /* We only use structs from this header when we use getifaddrs. */ | |
5e617bc2 | 65 | #if defined (HAVE_NET_IF_DL_H) |
377538cb JD |
66 | #include <net/if_dl.h> |
67 | #endif | |
68 | ||
69 | #endif | |
70 | ||
d0d6b7c5 JB |
71 | #ifdef NEED_BSDTTY |
72 | #include <bsdtty.h> | |
73 | #endif | |
74 | ||
4a4bbad2 PE |
75 | #ifdef USG5_4 |
76 | # include <sys/stream.h> | |
77 | # include <sys/stropts.h> | |
78 | #endif | |
79 | ||
08116b48 | 80 | #ifdef HAVE_RES_INIT |
08116b48 CY |
81 | #include <arpa/nameser.h> |
82 | #include <resolv.h> | |
83 | #endif | |
84 | ||
3d608a86 J |
85 | #ifdef HAVE_UTIL_H |
86 | #include <util.h> | |
87 | #endif | |
88 | ||
9bf58201 DN |
89 | #ifdef HAVE_PTY_H |
90 | #include <pty.h> | |
91 | #endif | |
92 | ||
d983a10b PE |
93 | #include <c-ctype.h> |
94 | #include <sig2str.h> | |
95 | ||
f388c88a EZ |
96 | #endif /* subprocesses */ |
97 | ||
d0d6b7c5 | 98 | #include "systime.h" |
36ebaafa | 99 | #include "systty.h" |
d0d6b7c5 | 100 | |
d0d6b7c5 | 101 | #include "window.h" |
5bbf78c1 | 102 | #include "character.h" |
e5560ff7 | 103 | #include "buffer.h" |
0fa1789e | 104 | #include "coding.h" |
d0d6b7c5 | 105 | #include "process.h" |
428a555e | 106 | #include "frame.h" |
d0d6b7c5 JB |
107 | #include "termhooks.h" |
108 | #include "termopts.h" | |
109 | #include "commands.h" | |
3ec68006 | 110 | #include "keyboard.h" |
ececcbec | 111 | #include "blockinput.h" |
dfcf069d | 112 | #include "dispextern.h" |
e0016554 | 113 | #include "composite.h" |
30904ab7 | 114 | #include "atimer.h" |
f388c88a EZ |
115 | #include "sysselect.h" |
116 | #include "syssignal.h" | |
117 | #include "syswait.h" | |
8af55556 TZ |
118 | #ifdef HAVE_GNUTLS |
119 | #include "gnutls.h" | |
120 | #endif | |
d0d6b7c5 | 121 | |
17a2cbbd DC |
122 | #ifdef HAVE_WINDOW_SYSTEM |
123 | #include TERM_HEADER | |
124 | #endif /* HAVE_WINDOW_SYSTEM */ | |
125 | ||
69f60cdc | 126 | #ifdef HAVE_GLIB |
872870b2 | 127 | #include "xgselect.h" |
69f60cdc JD |
128 | #ifndef WINDOWSNT |
129 | #include <glib.h> | |
130 | #endif | |
0949d2b6 | 131 | #endif |
57507bf8 | 132 | |
a68089e4 EZ |
133 | #ifdef WINDOWSNT |
134 | extern int sys_select (int, SELECT_TYPE *, SELECT_TYPE *, SELECT_TYPE *, | |
135 | EMACS_TIME *, void *); | |
136 | #endif | |
137 | ||
067428c1 PE |
138 | #ifndef SOCK_CLOEXEC |
139 | # define SOCK_CLOEXEC 0 | |
9caab067 PE |
140 | #endif |
141 | ||
142 | #ifndef HAVE_ACCEPT4 | |
067428c1 PE |
143 | |
144 | /* Emulate GNU/Linux accept4 and socket well enough for this module. */ | |
145 | ||
146 | static int | |
147 | close_on_exec (int fd) | |
148 | { | |
149 | if (0 <= fd) | |
150 | fcntl (fd, F_SETFD, FD_CLOEXEC); | |
151 | return fd; | |
152 | } | |
153 | ||
154 | static int | |
155 | accept4 (int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags) | |
156 | { | |
157 | return close_on_exec (accept (sockfd, addr, addrlen)); | |
158 | } | |
159 | ||
160 | static int | |
161 | process_socket (int domain, int type, int protocol) | |
162 | { | |
163 | return close_on_exec (socket (domain, type, protocol)); | |
164 | } | |
165 | # undef socket | |
166 | # define socket(domain, type, protocol) process_socket (domain, type, protocol) | |
167 | #endif | |
168 | ||
b8df54ff PE |
169 | /* Work around GCC 4.7.0 bug with strict overflow checking; see |
170 | <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52904>. | |
171 | These lines can be removed once the GCC bug is fixed. */ | |
908589fd | 172 | #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
b8df54ff PE |
173 | # pragma GCC diagnostic ignored "-Wstrict-overflow" |
174 | #endif | |
175 | ||
fdb183d6 DN |
176 | Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname, Qtpgid; |
177 | Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime, Qcstime; | |
178 | Lisp_Object Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs; | |
179 | Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtime, Qctime; | |
180 | Lisp_Object QCname, QCtype; | |
181 | \f | |
0bce5d9e | 182 | /* True if keyboard input is on hold, zero otherwise. */ |
fdb183d6 | 183 | |
0bce5d9e | 184 | static bool kbd_is_on_hold; |
fdb183d6 | 185 | |
fdb183d6 DN |
186 | /* Nonzero means don't run process sentinels. This is used |
187 | when exiting. */ | |
0bce5d9e | 188 | bool inhibit_sentinels; |
fdb183d6 | 189 | |
f388c88a EZ |
190 | #ifdef subprocesses |
191 | ||
dd2281ae | 192 | Lisp_Object Qprocessp; |
955cbe7b PE |
193 | static Lisp_Object Qrun, Qstop, Qsignal; |
194 | static Lisp_Object Qopen, Qclosed, Qconnect, Qfailed, Qlisten; | |
195 | Lisp_Object Qlocal; | |
196 | static Lisp_Object Qipv4, Qdatagram, Qseqpacket; | |
197 | static Lisp_Object Qreal, Qnetwork, Qserial; | |
e1652a86 | 198 | #ifdef AF_INET6 |
955cbe7b | 199 | static Lisp_Object Qipv6; |
e1652a86 | 200 | #endif |
955cbe7b PE |
201 | static Lisp_Object QCport, QCprocess; |
202 | Lisp_Object QCspeed; | |
d888760c GM |
203 | Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven; |
204 | Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary; | |
955cbe7b PE |
205 | static Lisp_Object QCbuffer, QChost, QCservice; |
206 | static Lisp_Object QClocal, QCremote, QCcoding; | |
207 | static Lisp_Object QCserver, QCnowait, QCnoquery, QCstop; | |
208 | static Lisp_Object QCsentinel, QClog, QCoptions, QCplist; | |
209 | static Lisp_Object Qlast_nonmenu_event; | |
1aa8d505 SM |
210 | static Lisp_Object Qinternal_default_process_sentinel; |
211 | static Lisp_Object Qinternal_default_process_filter; | |
e0f712ba | 212 | |
4d2b044c DA |
213 | #define NETCONN_P(p) (EQ (XPROCESS (p)->type, Qnetwork)) |
214 | #define NETCONN1_P(p) (EQ (p->type, Qnetwork)) | |
215 | #define SERIALCONN_P(p) (EQ (XPROCESS (p)->type, Qserial)) | |
216 | #define SERIALCONN1_P(p) (EQ (p->type, Qserial)) | |
d0d6b7c5 | 217 | |
d0d6b7c5 | 218 | /* Number of events of change of status of a process. */ |
e4d81efc | 219 | static EMACS_INT process_tick; |
d0d6b7c5 | 220 | /* Number of events for which the user or sentinel has been notified. */ |
e4d81efc | 221 | static EMACS_INT update_tick; |
d0d6b7c5 | 222 | |
dd2a17ab KS |
223 | /* Define NON_BLOCKING_CONNECT if we can support non-blocking connects. */ |
224 | ||
82d6e50b | 225 | /* Only W32 has this, it really means that select can't take write mask. */ |
dd2a17ab KS |
226 | #ifdef BROKEN_NON_BLOCKING_CONNECT |
227 | #undef NON_BLOCKING_CONNECT | |
82d6e50b | 228 | #define SELECT_CANT_DO_WRITE_MASK |
dd2a17ab KS |
229 | #else |
230 | #ifndef NON_BLOCKING_CONNECT | |
dd2a17ab KS |
231 | #ifdef HAVE_SELECT |
232 | #if defined (HAVE_GETPEERNAME) || defined (GNU_LINUX) | |
dd2a17ab KS |
233 | #if defined (EWOULDBLOCK) || defined (EINPROGRESS) |
234 | #define NON_BLOCKING_CONNECT | |
235 | #endif /* EWOULDBLOCK || EINPROGRESS */ | |
dd2a17ab KS |
236 | #endif /* HAVE_GETPEERNAME || GNU_LINUX */ |
237 | #endif /* HAVE_SELECT */ | |
dd2a17ab KS |
238 | #endif /* NON_BLOCKING_CONNECT */ |
239 | #endif /* BROKEN_NON_BLOCKING_CONNECT */ | |
240 | ||
e690ca94 KS |
241 | /* Define DATAGRAM_SOCKETS if datagrams can be used safely on |
242 | this system. We need to read full packets, so we need a | |
243 | "non-destructive" select. So we require either native select, | |
244 | or emulation of select using FIONREAD. */ | |
245 | ||
4a4bbad2 PE |
246 | #ifndef BROKEN_DATAGRAM_SOCKETS |
247 | # if defined HAVE_SELECT || defined USABLE_FIONREAD | |
248 | # if defined HAVE_SENDTO && defined HAVE_RECVFROM && defined EMSGSIZE | |
249 | # define DATAGRAM_SOCKETS | |
250 | # endif | |
251 | # endif | |
252 | #endif | |
e690ca94 | 253 | |
f00c449b SM |
254 | #if defined HAVE_LOCAL_SOCKETS && defined DATAGRAM_SOCKETS |
255 | # define HAVE_SEQPACKET | |
256 | #endif | |
257 | ||
6b61353c | 258 | #if !defined (ADAPTIVE_READ_BUFFERING) && !defined (NO_ADAPTIVE_READ_BUFFERING) |
6b61353c KH |
259 | #define ADAPTIVE_READ_BUFFERING |
260 | #endif | |
6b61353c KH |
261 | |
262 | #ifdef ADAPTIVE_READ_BUFFERING | |
d35af63c | 263 | #define READ_OUTPUT_DELAY_INCREMENT (EMACS_TIME_RESOLUTION / 100) |
6b61353c KH |
264 | #define READ_OUTPUT_DELAY_MAX (READ_OUTPUT_DELAY_INCREMENT * 5) |
265 | #define READ_OUTPUT_DELAY_MAX_MAX (READ_OUTPUT_DELAY_INCREMENT * 7) | |
266 | ||
db853b7a KS |
267 | /* Number of processes which have a non-zero read_output_delay, |
268 | and therefore might be delayed for adaptive read buffering. */ | |
6b61353c KH |
269 | |
270 | static int process_output_delay_count; | |
271 | ||
0bce5d9e | 272 | /* True if any process has non-nil read_output_skip. */ |
6b61353c | 273 | |
0bce5d9e | 274 | static bool process_output_skip; |
6b61353c | 275 | |
6b61353c KH |
276 | #else |
277 | #define process_output_delay_count 0 | |
278 | #endif | |
279 | ||
40ccffa6 | 280 | static void create_process (Lisp_Object, char **, Lisp_Object); |
4a4bbad2 | 281 | #ifdef USABLE_SIGIO |
0bce5d9e | 282 | static bool keyboard_bit_set (SELECT_TYPE *); |
006c5daa | 283 | #endif |
f57e2426 J |
284 | static void deactivate_process (Lisp_Object); |
285 | static void status_notify (struct Lisp_Process *); | |
286 | static int read_process_output (Lisp_Object, int); | |
4d7e6e51 | 287 | static void handle_child_signal (int); |
f57e2426 | 288 | static void create_pty (Lisp_Object); |
41d03b9a | 289 | |
583dcae4 | 290 | /* If we support a window system, turn on the code to poll periodically |
44ade2e9 | 291 | to detect C-g. It isn't actually used when doing interrupt input. */ |
4d7e6e51 | 292 | #ifdef HAVE_WINDOW_SYSTEM |
44ade2e9 RS |
293 | #define POLL_FOR_INPUT |
294 | #endif | |
295 | ||
d3da34e0 JB |
296 | static Lisp_Object get_process (register Lisp_Object name); |
297 | static void exec_sentinel (Lisp_Object proc, Lisp_Object reason); | |
84af9896 | 298 | |
f388c88a EZ |
299 | /* Mask of bits indicating the descriptors that we wait for input on. */ |
300 | ||
301 | static SELECT_TYPE input_wait_mask; | |
302 | ||
994d9841 | 303 | /* Mask that excludes keyboard input descriptor(s). */ |
a69281ff RS |
304 | |
305 | static SELECT_TYPE non_keyboard_wait_mask; | |
306 | ||
994d9841 | 307 | /* Mask that excludes process input descriptor(s). */ |
b5dc1c83 RS |
308 | |
309 | static SELECT_TYPE non_process_wait_mask; | |
310 | ||
3fad2ad2 | 311 | /* Mask for selecting for write. */ |
994d9841 | 312 | |
3fad2ad2 | 313 | static SELECT_TYPE write_mask; |
994d9841 | 314 | |
bad49fc7 | 315 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
316 | /* Mask of bits indicating the descriptors that we wait for connect to |
317 | complete on. Once they complete, they are removed from this mask | |
318 | and added to the input_wait_mask and non_keyboard_wait_mask. */ | |
319 | ||
320 | static SELECT_TYPE connect_wait_mask; | |
321 | ||
322 | /* Number of bits set in connect_wait_mask. */ | |
323 | static int num_pending_connects; | |
f388c88a | 324 | #endif /* NON_BLOCKING_CONNECT */ |
bad49fc7 | 325 | |
7d0e672e RS |
326 | /* The largest descriptor currently in use for a process object. */ |
327 | static int max_process_desc; | |
328 | ||
3fad2ad2 J |
329 | /* The largest descriptor currently in use for input. */ |
330 | static int max_input_desc; | |
994d9841 | 331 | |
d0d6b7c5 | 332 | /* Indexed by descriptor, gives the process (if any) for that descriptor */ |
40ccffa6 | 333 | static Lisp_Object chan_process[MAXDESC]; |
d0d6b7c5 JB |
334 | |
335 | /* Alist of elements (NAME . PROCESS) */ | |
40ccffa6 | 336 | static Lisp_Object Vprocess_alist; |
d0d6b7c5 JB |
337 | |
338 | /* Buffered-ahead input char from process, indexed by channel. | |
339 | -1 means empty (no char is buffered). | |
340 | Used on sys V where the only way to tell if there is any | |
341 | output from the process is to read at least one char. | |
342 | Always -1 on systems that support FIONREAD. */ | |
343 | ||
40ccffa6 | 344 | static int proc_buffered_char[MAXDESC]; |
dd2281ae | 345 | |
0fa1789e | 346 | /* Table of `struct coding-system' for each process. */ |
c7580538 KH |
347 | static struct coding_system *proc_decode_coding_system[MAXDESC]; |
348 | static struct coding_system *proc_encode_coding_system[MAXDESC]; | |
0fa1789e | 349 | |
e690ca94 KS |
350 | #ifdef DATAGRAM_SOCKETS |
351 | /* Table of `partner address' for datagram sockets. */ | |
40ccffa6 | 352 | static struct sockaddr_and_len { |
e690ca94 KS |
353 | struct sockaddr *sa; |
354 | int len; | |
355 | } datagram_address[MAXDESC]; | |
356 | #define DATAGRAM_CHAN_P(chan) (datagram_address[chan].sa != 0) | |
60f0fb11 | 357 | #define DATAGRAM_CONN_P(proc) (PROCESSP (proc) && datagram_address[XPROCESS (proc)->infd].sa != 0) |
e690ca94 KS |
358 | #else |
359 | #define DATAGRAM_CHAN_P(chan) (0) | |
360 | #define DATAGRAM_CONN_P(proc) (0) | |
361 | #endif | |
362 | ||
6a09a33b | 363 | /* These setters are used only in this file, so they can be private. */ |
b0ab8123 | 364 | static void |
6a09a33b PE |
365 | pset_buffer (struct Lisp_Process *p, Lisp_Object val) |
366 | { | |
367 | p->buffer = val; | |
368 | } | |
b0ab8123 | 369 | static void |
6a09a33b PE |
370 | pset_command (struct Lisp_Process *p, Lisp_Object val) |
371 | { | |
372 | p->command = val; | |
373 | } | |
b0ab8123 | 374 | static void |
6a09a33b PE |
375 | pset_decode_coding_system (struct Lisp_Process *p, Lisp_Object val) |
376 | { | |
377 | p->decode_coding_system = val; | |
378 | } | |
b0ab8123 | 379 | static void |
6a09a33b PE |
380 | pset_decoding_buf (struct Lisp_Process *p, Lisp_Object val) |
381 | { | |
382 | p->decoding_buf = val; | |
383 | } | |
b0ab8123 | 384 | static void |
6a09a33b PE |
385 | pset_encode_coding_system (struct Lisp_Process *p, Lisp_Object val) |
386 | { | |
387 | p->encode_coding_system = val; | |
388 | } | |
b0ab8123 | 389 | static void |
6a09a33b PE |
390 | pset_encoding_buf (struct Lisp_Process *p, Lisp_Object val) |
391 | { | |
392 | p->encoding_buf = val; | |
393 | } | |
b0ab8123 | 394 | static void |
6a09a33b PE |
395 | pset_filter (struct Lisp_Process *p, Lisp_Object val) |
396 | { | |
1aa8d505 | 397 | p->filter = NILP (val) ? Qinternal_default_process_filter : val; |
6a09a33b | 398 | } |
b0ab8123 | 399 | static void |
6a09a33b PE |
400 | pset_log (struct Lisp_Process *p, Lisp_Object val) |
401 | { | |
402 | p->log = val; | |
403 | } | |
b0ab8123 | 404 | static void |
6a09a33b PE |
405 | pset_mark (struct Lisp_Process *p, Lisp_Object val) |
406 | { | |
407 | p->mark = val; | |
408 | } | |
b0ab8123 | 409 | static void |
6a09a33b PE |
410 | pset_name (struct Lisp_Process *p, Lisp_Object val) |
411 | { | |
412 | p->name = val; | |
413 | } | |
b0ab8123 | 414 | static void |
6a09a33b PE |
415 | pset_plist (struct Lisp_Process *p, Lisp_Object val) |
416 | { | |
417 | p->plist = val; | |
418 | } | |
b0ab8123 | 419 | static void |
6a09a33b PE |
420 | pset_sentinel (struct Lisp_Process *p, Lisp_Object val) |
421 | { | |
1aa8d505 | 422 | p->sentinel = NILP (val) ? Qinternal_default_process_sentinel : val; |
6a09a33b | 423 | } |
b0ab8123 | 424 | static void |
6a09a33b PE |
425 | pset_status (struct Lisp_Process *p, Lisp_Object val) |
426 | { | |
427 | p->status = val; | |
428 | } | |
b0ab8123 | 429 | static void |
6a09a33b PE |
430 | pset_tty_name (struct Lisp_Process *p, Lisp_Object val) |
431 | { | |
432 | p->tty_name = val; | |
433 | } | |
b0ab8123 | 434 | static void |
6a09a33b PE |
435 | pset_type (struct Lisp_Process *p, Lisp_Object val) |
436 | { | |
437 | p->type = val; | |
438 | } | |
b0ab8123 | 439 | static void |
6a09a33b PE |
440 | pset_write_queue (struct Lisp_Process *p, Lisp_Object val) |
441 | { | |
442 | p->write_queue = val; | |
443 | } | |
444 | ||
d0d6b7c5 | 445 | \f |
3fad2ad2 | 446 | |
40ccffa6 | 447 | static struct fd_callback_data |
3fad2ad2 J |
448 | { |
449 | fd_callback func; | |
450 | void *data; | |
451 | #define FOR_READ 1 | |
452 | #define FOR_WRITE 2 | |
453 | int condition; /* mask of the defines above. */ | |
454 | } fd_callback_info[MAXDESC]; | |
455 | ||
456 | ||
457 | /* Add a file descriptor FD to be monitored for when read is possible. | |
458 | When read is possible, call FUNC with argument DATA. */ | |
459 | ||
460 | void | |
461 | add_read_fd (int fd, fd_callback func, void *data) | |
462 | { | |
a54e2c05 | 463 | eassert (fd < MAXDESC); |
3fad2ad2 J |
464 | add_keyboard_wait_descriptor (fd); |
465 | ||
466 | fd_callback_info[fd].func = func; | |
467 | fd_callback_info[fd].data = data; | |
468 | fd_callback_info[fd].condition |= FOR_READ; | |
469 | } | |
470 | ||
471 | /* Stop monitoring file descriptor FD for when read is possible. */ | |
472 | ||
473 | void | |
474 | delete_read_fd (int fd) | |
475 | { | |
a54e2c05 | 476 | eassert (fd < MAXDESC); |
3fad2ad2 J |
477 | delete_keyboard_wait_descriptor (fd); |
478 | ||
479 | fd_callback_info[fd].condition &= ~FOR_READ; | |
480 | if (fd_callback_info[fd].condition == 0) | |
481 | { | |
482 | fd_callback_info[fd].func = 0; | |
483 | fd_callback_info[fd].data = 0; | |
484 | } | |
485 | } | |
486 | ||
487 | /* Add a file descriptor FD to be monitored for when write is possible. | |
488 | When write is possible, call FUNC with argument DATA. */ | |
489 | ||
490 | void | |
491 | add_write_fd (int fd, fd_callback func, void *data) | |
492 | { | |
a54e2c05 | 493 | eassert (fd < MAXDESC); |
3fad2ad2 J |
494 | FD_SET (fd, &write_mask); |
495 | if (fd > max_input_desc) | |
496 | max_input_desc = fd; | |
497 | ||
498 | fd_callback_info[fd].func = func; | |
499 | fd_callback_info[fd].data = data; | |
500 | fd_callback_info[fd].condition |= FOR_WRITE; | |
501 | } | |
502 | ||
503 | /* Stop monitoring file descriptor FD for when write is possible. */ | |
504 | ||
505 | void | |
506 | delete_write_fd (int fd) | |
507 | { | |
508 | int lim = max_input_desc; | |
509 | ||
a54e2c05 | 510 | eassert (fd < MAXDESC); |
3fad2ad2 J |
511 | FD_CLR (fd, &write_mask); |
512 | fd_callback_info[fd].condition &= ~FOR_WRITE; | |
513 | if (fd_callback_info[fd].condition == 0) | |
514 | { | |
515 | fd_callback_info[fd].func = 0; | |
516 | fd_callback_info[fd].data = 0; | |
517 | ||
518 | if (fd == max_input_desc) | |
519 | for (fd = lim; fd >= 0; fd--) | |
520 | if (FD_ISSET (fd, &input_wait_mask) || FD_ISSET (fd, &write_mask)) | |
521 | { | |
522 | max_input_desc = fd; | |
523 | break; | |
524 | } | |
51b59d79 | 525 | |
3fad2ad2 J |
526 | } |
527 | } | |
528 | ||
529 | \f | |
d0d6b7c5 JB |
530 | /* Compute the Lisp form of the process status, p->status, from |
531 | the numeric status that was returned by `wait'. */ | |
532 | ||
bba104c1 | 533 | static Lisp_Object status_convert (int); |
f9738840 | 534 | |
ff6daed3 | 535 | static void |
d3da34e0 | 536 | update_status (struct Lisp_Process *p) |
d0d6b7c5 | 537 | { |
6bfd98e7 | 538 | eassert (p->raw_status_new); |
6a09a33b | 539 | pset_status (p, status_convert (p->raw_status)); |
6bfd98e7 | 540 | p->raw_status_new = 0; |
d0d6b7c5 JB |
541 | } |
542 | ||
177c0ea7 | 543 | /* Convert a process status word in Unix format to |
d0d6b7c5 JB |
544 | the list that we use internally. */ |
545 | ||
ff6daed3 | 546 | static Lisp_Object |
bba104c1 | 547 | status_convert (int w) |
d0d6b7c5 JB |
548 | { |
549 | if (WIFSTOPPED (w)) | |
550 | return Fcons (Qstop, Fcons (make_number (WSTOPSIG (w)), Qnil)); | |
551 | else if (WIFEXITED (w)) | |
13294f95 | 552 | return Fcons (Qexit, Fcons (make_number (WEXITSTATUS (w)), |
d0d6b7c5 JB |
553 | WCOREDUMP (w) ? Qt : Qnil)); |
554 | else if (WIFSIGNALED (w)) | |
555 | return Fcons (Qsignal, Fcons (make_number (WTERMSIG (w)), | |
556 | WCOREDUMP (w) ? Qt : Qnil)); | |
557 | else | |
558 | return Qrun; | |
559 | } | |
560 | ||
561 | /* Given a status-list, extract the three pieces of information | |
562 | and store them individually through the three pointers. */ | |
563 | ||
ff6daed3 | 564 | static void |
0bce5d9e | 565 | decode_status (Lisp_Object l, Lisp_Object *symbol, int *code, bool *coredump) |
d0d6b7c5 JB |
566 | { |
567 | Lisp_Object tem; | |
568 | ||
bcd69aea | 569 | if (SYMBOLP (l)) |
d0d6b7c5 JB |
570 | { |
571 | *symbol = l; | |
572 | *code = 0; | |
573 | *coredump = 0; | |
574 | } | |
575 | else | |
576 | { | |
70949dac KR |
577 | *symbol = XCAR (l); |
578 | tem = XCDR (l); | |
579 | *code = XFASTINT (XCAR (tem)); | |
580 | tem = XCDR (tem); | |
d0d6b7c5 JB |
581 | *coredump = !NILP (tem); |
582 | } | |
583 | } | |
584 | ||
585 | /* Return a string describing a process status list. */ | |
586 | ||
116c423c | 587 | static Lisp_Object |
d3da34e0 | 588 | status_message (struct Lisp_Process *p) |
d0d6b7c5 | 589 | { |
4d2b044c | 590 | Lisp_Object status = p->status; |
d0d6b7c5 | 591 | Lisp_Object symbol; |
0bce5d9e PE |
592 | int code; |
593 | bool coredump; | |
d0d6b7c5 JB |
594 | Lisp_Object string, string2; |
595 | ||
596 | decode_status (status, &symbol, &code, &coredump); | |
597 | ||
598 | if (EQ (symbol, Qsignal) || EQ (symbol, Qstop)) | |
599 | { | |
aa1ba90e | 600 | char const *signame; |
ca9c0567 | 601 | synchronize_system_messages_locale (); |
68c45bf0 | 602 | signame = strsignal (code); |
b97ad9ea | 603 | if (signame == 0) |
66bd43d1 KH |
604 | string = build_string ("unknown"); |
605 | else | |
606 | { | |
607 | int c1, c2; | |
608 | ||
d7ea76b4 | 609 | string = build_unibyte_string (signame); |
66bd43d1 KH |
610 | if (! NILP (Vlocale_coding_system)) |
611 | string = (code_convert_string_norecord | |
612 | (string, Vlocale_coding_system, 0)); | |
42a5b22f | 613 | c1 = STRING_CHAR (SDATA (string)); |
5da9919f | 614 | c2 = downcase (c1); |
66bd43d1 | 615 | if (c1 != c2) |
4735b74e | 616 | Faset (string, make_number (0), make_number (c2)); |
66bd43d1 | 617 | } |
d0d6b7c5 | 618 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
d0d6b7c5 JB |
619 | return concat2 (string, string2); |
620 | } | |
621 | else if (EQ (symbol, Qexit)) | |
622 | { | |
116c423c KS |
623 | if (NETCONN1_P (p)) |
624 | return build_string (code == 0 ? "deleted\n" : "connection broken by remote peer\n"); | |
d0d6b7c5 JB |
625 | if (code == 0) |
626 | return build_string ("finished\n"); | |
f2980264 | 627 | string = Fnumber_to_string (make_number (code)); |
d0d6b7c5 | 628 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
e690ca94 KS |
629 | return concat3 (build_string ("exited abnormally with code "), |
630 | string, string2); | |
d0d6b7c5 | 631 | } |
dd2a17ab KS |
632 | else if (EQ (symbol, Qfailed)) |
633 | { | |
634 | string = Fnumber_to_string (make_number (code)); | |
635 | string2 = build_string ("\n"); | |
e690ca94 KS |
636 | return concat3 (build_string ("failed with code "), |
637 | string, string2); | |
dd2a17ab | 638 | } |
d0d6b7c5 JB |
639 | else |
640 | return Fcopy_sequence (Fsymbol_name (symbol)); | |
641 | } | |
642 | \f | |
643 | #ifdef HAVE_PTYS | |
d0d6b7c5 | 644 | |
9bf58201 DN |
645 | /* The file name of the pty opened by allocate_pty. */ |
646 | static char pty_name[24]; | |
647 | ||
875e6b94 KH |
648 | /* Open an available pty, returning a file descriptor. |
649 | Return -1 on failure. | |
650 | The file name of the terminal corresponding to the pty | |
651 | is left in the variable pty_name. */ | |
652 | ||
ff6daed3 | 653 | static int |
d3da34e0 | 654 | allocate_pty (void) |
d0d6b7c5 | 655 | { |
d0d6b7c5 JB |
656 | int fd; |
657 | ||
658 | #ifdef PTY_ITERATION | |
659 | PTY_ITERATION | |
660 | #else | |
be02381c | 661 | register int c, i; |
d0d6b7c5 JB |
662 | for (c = FIRST_PTY_LETTER; c <= 'z'; c++) |
663 | for (i = 0; i < 16; i++) | |
664 | #endif | |
665 | { | |
666 | #ifdef PTY_NAME_SPRINTF | |
667 | PTY_NAME_SPRINTF | |
d0d6b7c5 JB |
668 | #else |
669 | sprintf (pty_name, "/dev/pty%c%x", c, i); | |
d0d6b7c5 JB |
670 | #endif /* no PTY_NAME_SPRINTF */ |
671 | ||
4d7c105e RS |
672 | #ifdef PTY_OPEN |
673 | PTY_OPEN; | |
674 | #else /* no PTY_OPEN */ | |
49cdacda | 675 | fd = emacs_open (pty_name, O_RDWR | O_NONBLOCK, 0); |
4d7c105e | 676 | #endif /* no PTY_OPEN */ |
d0d6b7c5 JB |
677 | |
678 | if (fd >= 0) | |
679 | { | |
680 | /* check to make certain that both sides are available | |
681 | this avoids a nasty yet stupid bug in rlogins */ | |
682 | #ifdef PTY_TTY_NAME_SPRINTF | |
683 | PTY_TTY_NAME_SPRINTF | |
d0d6b7c5 | 684 | #else |
63136da6 | 685 | sprintf (pty_name, "/dev/tty%c%x", c, i); |
d0d6b7c5 | 686 | #endif /* no PTY_TTY_NAME_SPRINTF */ |
73dcdb9f | 687 | if (faccessat (AT_FDCWD, pty_name, R_OK | W_OK, AT_EACCESS) != 0) |
d0d6b7c5 | 688 | { |
68c45bf0 | 689 | emacs_close (fd); |
132d0475 | 690 | # ifndef __sgi |
d0d6b7c5 | 691 | continue; |
34967d0f | 692 | # else |
d0d6b7c5 | 693 | return -1; |
132d0475 | 694 | # endif /* __sgi */ |
d0d6b7c5 | 695 | } |
d0d6b7c5 JB |
696 | setup_pty (fd); |
697 | return fd; | |
698 | } | |
699 | } | |
700 | return -1; | |
701 | } | |
702 | #endif /* HAVE_PTYS */ | |
703 | \f | |
ff6daed3 | 704 | static Lisp_Object |
d3da34e0 | 705 | make_process (Lisp_Object name) |
d0d6b7c5 JB |
706 | { |
707 | register Lisp_Object val, tem, name1; | |
708 | register struct Lisp_Process *p; | |
31c286f7 PE |
709 | char suffix[sizeof "<>" + INT_STRLEN_BOUND (printmax_t)]; |
710 | printmax_t i; | |
d0d6b7c5 | 711 | |
98423852 | 712 | p = allocate_process (); |
62efea5e DA |
713 | /* Initialize Lisp data. Note that allocate_process initializes all |
714 | Lisp data to nil, so do it only for slots which should not be nil. */ | |
6a09a33b PE |
715 | pset_status (p, Qrun); |
716 | pset_mark (p, Fmake_marker ()); | |
d0d6b7c5 | 717 | |
62efea5e DA |
718 | /* Initialize non-Lisp data. Note that allocate_process zeroes out all |
719 | non-Lisp data, so do it only for slots which should not be zero. */ | |
720 | p->infd = -1; | |
721 | p->outfd = -1; | |
6b61353c | 722 | |
8af55556 TZ |
723 | #ifdef HAVE_GNUTLS |
724 | p->gnutls_initstage = GNUTLS_STAGE_EMPTY; | |
725 | #endif | |
726 | ||
d0d6b7c5 JB |
727 | /* If name is already in use, modify it until it is unused. */ |
728 | ||
729 | name1 = name; | |
730 | for (i = 1; ; i++) | |
731 | { | |
732 | tem = Fget_process (name1); | |
733 | if (NILP (tem)) break; | |
a8290ec3 | 734 | name1 = concat2 (name, make_formatted_string (suffix, "<%"pMd">", i)); |
d0d6b7c5 JB |
735 | } |
736 | name = name1; | |
6a09a33b | 737 | pset_name (p, name); |
1aa8d505 SM |
738 | pset_sentinel (p, Qinternal_default_process_sentinel); |
739 | pset_filter (p, Qinternal_default_process_filter); | |
23d6bb9c | 740 | XSETPROCESS (val, p); |
d0d6b7c5 JB |
741 | Vprocess_alist = Fcons (Fcons (name, val), Vprocess_alist); |
742 | return val; | |
743 | } | |
744 | ||
ff6daed3 | 745 | static void |
d3da34e0 | 746 | remove_process (register Lisp_Object proc) |
d0d6b7c5 JB |
747 | { |
748 | register Lisp_Object pair; | |
749 | ||
750 | pair = Frassq (proc, Vprocess_alist); | |
751 | Vprocess_alist = Fdelq (pair, Vprocess_alist); | |
d0d6b7c5 JB |
752 | |
753 | deactivate_process (proc); | |
754 | } | |
03f04413 | 755 | |
d0d6b7c5 JB |
756 | \f |
757 | DEFUN ("processp", Fprocessp, Sprocessp, 1, 1, 0, | |
fdb82f93 | 758 | doc: /* Return t if OBJECT is a process. */) |
5842a27b | 759 | (Lisp_Object object) |
d0d6b7c5 | 760 | { |
4ee3e309 | 761 | return PROCESSP (object) ? Qt : Qnil; |
d0d6b7c5 JB |
762 | } |
763 | ||
764 | DEFUN ("get-process", Fget_process, Sget_process, 1, 1, 0, | |
fdb82f93 | 765 | doc: /* Return the process named NAME, or nil if there is none. */) |
5842a27b | 766 | (register Lisp_Object name) |
d0d6b7c5 | 767 | { |
bcd69aea | 768 | if (PROCESSP (name)) |
d0d6b7c5 | 769 | return name; |
b7826503 | 770 | CHECK_STRING (name); |
d0d6b7c5 JB |
771 | return Fcdr (Fassoc (name, Vprocess_alist)); |
772 | } | |
773 | ||
ebb9e16f JB |
774 | /* This is how commands for the user decode process arguments. It |
775 | accepts a process, a process name, a buffer, a buffer name, or nil. | |
776 | Buffers denote the first process in the buffer, and nil denotes the | |
777 | current buffer. */ | |
d0d6b7c5 | 778 | |
77b221b1 | 779 | static Lisp_Object |
d3da34e0 | 780 | get_process (register Lisp_Object name) |
d0d6b7c5 | 781 | { |
1619761d KH |
782 | register Lisp_Object proc, obj; |
783 | if (STRINGP (name)) | |
784 | { | |
785 | obj = Fget_process (name); | |
786 | if (NILP (obj)) | |
787 | obj = Fget_buffer (name); | |
788 | if (NILP (obj)) | |
d5db4077 | 789 | error ("Process %s does not exist", SDATA (name)); |
1619761d KH |
790 | } |
791 | else if (NILP (name)) | |
792 | obj = Fcurrent_buffer (); | |
d0d6b7c5 | 793 | else |
1619761d KH |
794 | obj = name; |
795 | ||
796 | /* Now obj should be either a buffer object or a process object. | |
797 | */ | |
798 | if (BUFFERP (obj)) | |
d0d6b7c5 | 799 | { |
1619761d | 800 | proc = Fget_buffer_process (obj); |
d0d6b7c5 | 801 | if (NILP (proc)) |
4b4deea2 | 802 | error ("Buffer %s has no process", SDATA (BVAR (XBUFFER (obj), name))); |
d0d6b7c5 | 803 | } |
d0d6b7c5 | 804 | else |
1619761d | 805 | { |
b7826503 | 806 | CHECK_PROCESS (obj); |
1619761d KH |
807 | proc = obj; |
808 | } | |
809 | return proc; | |
d0d6b7c5 JB |
810 | } |
811 | ||
a5cfdda8 | 812 | |
a5cfdda8 KS |
813 | /* Fdelete_process promises to immediately forget about the process, but in |
814 | reality, Emacs needs to remember those processes until they have been | |
0b3d4a47 | 815 | treated by the SIGCHLD handler and waitpid has been invoked on them; |
bb5f74ee PE |
816 | otherwise they might fill up the kernel's process table. |
817 | ||
818 | Some processes created by call-process are also put onto this list. */ | |
a5cfdda8 | 819 | static Lisp_Object deleted_pid_list; |
a5cfdda8 | 820 | |
bb5f74ee PE |
821 | void |
822 | record_deleted_pid (pid_t pid) | |
823 | { | |
bb5f74ee PE |
824 | deleted_pid_list = Fcons (make_fixnum_or_float (pid), |
825 | /* GC treated elements set to nil. */ | |
826 | Fdelq (Qnil, deleted_pid_list)); | |
827 | ||
bb5f74ee PE |
828 | } |
829 | ||
d0d6b7c5 | 830 | DEFUN ("delete-process", Fdelete_process, Sdelete_process, 1, 1, 0, |
fdb82f93 PJ |
831 | doc: /* Delete PROCESS: kill it and forget about it immediately. |
832 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
833 | nil, indicating the current buffer's process. */) | |
5842a27b | 834 | (register Lisp_Object process) |
d0d6b7c5 | 835 | { |
ff6daed3 KS |
836 | register struct Lisp_Process *p; |
837 | ||
4ee3e309 | 838 | process = get_process (process); |
ff6daed3 KS |
839 | p = XPROCESS (process); |
840 | ||
6bfd98e7 | 841 | p->raw_status_new = 0; |
d888760c | 842 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 843 | { |
6c6f1994 | 844 | pset_status (p, list2 (Qexit, make_number (0))); |
60f0fb11 | 845 | p->tick = ++process_tick; |
ff6daed3 | 846 | status_notify (p); |
e42bdf01 | 847 | redisplay_preserve_echo_area (13); |
d0d6b7c5 | 848 | } |
35fb8050 | 849 | else |
d0d6b7c5 | 850 | { |
35fb8050 PE |
851 | if (p->alive) |
852 | record_kill_process (p); | |
853 | ||
854 | if (p->infd >= 0) | |
a5cfdda8 | 855 | { |
35fb8050 PE |
856 | /* Update P's status, since record_kill_process will make the |
857 | SIGCHLD handler update deleted_pid_list, not *P. */ | |
858 | Lisp_Object symbol; | |
859 | if (p->raw_status_new) | |
860 | update_status (p); | |
861 | symbol = CONSP (p->status) ? XCAR (p->status) : p->status; | |
862 | if (! (EQ (symbol, Qsignal) || EQ (symbol, Qexit))) | |
863 | pset_status (p, list2 (Qsignal, make_number (SIGKILL))); | |
864 | ||
60f0fb11 | 865 | p->tick = ++process_tick; |
a5cfdda8 | 866 | status_notify (p); |
e42bdf01 | 867 | redisplay_preserve_echo_area (13); |
a5cfdda8 | 868 | } |
d0d6b7c5 | 869 | } |
4ee3e309 | 870 | remove_process (process); |
d0d6b7c5 JB |
871 | return Qnil; |
872 | } | |
873 | \f | |
874 | DEFUN ("process-status", Fprocess_status, Sprocess_status, 1, 1, 0, | |
fdb82f93 PJ |
875 | doc: /* Return the status of PROCESS. |
876 | The returned value is one of the following symbols: | |
877 | run -- for a process that is running. | |
878 | stop -- for a process stopped but continuable. | |
879 | exit -- for a process that has exited. | |
880 | signal -- for a process that has got a fatal signal. | |
881 | open -- for a network stream connection that is open. | |
e690ca94 | 882 | listen -- for a network stream server that is listening. |
fdb82f93 | 883 | closed -- for a network stream connection that is closed. |
e4984112 KS |
884 | connect -- when waiting for a non-blocking connection to complete. |
885 | failed -- when a non-blocking connection has failed. | |
fdb82f93 PJ |
886 | nil -- if arg is a process name and no such process exists. |
887 | PROCESS may be a process, a buffer, the name of a process, or | |
888 | nil, indicating the current buffer's process. */) | |
5842a27b | 889 | (register Lisp_Object process) |
d0d6b7c5 JB |
890 | { |
891 | register struct Lisp_Process *p; | |
892 | register Lisp_Object status; | |
343f4114 | 893 | |
4ee3e309 EN |
894 | if (STRINGP (process)) |
895 | process = Fget_process (process); | |
343f4114 | 896 | else |
4ee3e309 | 897 | process = get_process (process); |
343f4114 | 898 | |
4ee3e309 EN |
899 | if (NILP (process)) |
900 | return process; | |
343f4114 | 901 | |
4ee3e309 | 902 | p = XPROCESS (process); |
6bfd98e7 | 903 | if (p->raw_status_new) |
d0d6b7c5 | 904 | update_status (p); |
4d2b044c | 905 | status = p->status; |
bcd69aea | 906 | if (CONSP (status)) |
70949dac | 907 | status = XCAR (status); |
d888760c | 908 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 909 | { |
e690ca94 | 910 | if (EQ (status, Qexit)) |
d0d6b7c5 | 911 | status = Qclosed; |
4d2b044c | 912 | else if (EQ (p->command, Qt)) |
e690ca94 KS |
913 | status = Qstop; |
914 | else if (EQ (status, Qrun)) | |
915 | status = Qopen; | |
d0d6b7c5 JB |
916 | } |
917 | return status; | |
918 | } | |
919 | ||
920 | DEFUN ("process-exit-status", Fprocess_exit_status, Sprocess_exit_status, | |
921 | 1, 1, 0, | |
fdb82f93 PJ |
922 | doc: /* Return the exit status of PROCESS or the signal number that killed it. |
923 | If PROCESS has not yet exited or died, return 0. */) | |
5842a27b | 924 | (register Lisp_Object process) |
d0d6b7c5 | 925 | { |
b7826503 | 926 | CHECK_PROCESS (process); |
6bfd98e7 | 927 | if (XPROCESS (process)->raw_status_new) |
4ee3e309 | 928 | update_status (XPROCESS (process)); |
4d2b044c DA |
929 | if (CONSP (XPROCESS (process)->status)) |
930 | return XCAR (XCDR (XPROCESS (process)->status)); | |
d0d6b7c5 JB |
931 | return make_number (0); |
932 | } | |
933 | ||
934 | DEFUN ("process-id", Fprocess_id, Sprocess_id, 1, 1, 0, | |
fdb82f93 | 935 | doc: /* Return the process id of PROCESS. |
f3d9532b | 936 | This is the pid of the external process which PROCESS uses or talks to. |
fdb82f93 | 937 | For a network connection, this value is nil. */) |
5842a27b | 938 | (register Lisp_Object process) |
d0d6b7c5 | 939 | { |
d311d28c | 940 | pid_t pid; |
d30fe779 | 941 | |
b7826503 | 942 | CHECK_PROCESS (process); |
d30fe779 EZ |
943 | pid = XPROCESS (process)->pid; |
944 | return (pid ? make_fixnum_or_float (pid) : Qnil); | |
d0d6b7c5 JB |
945 | } |
946 | ||
947 | DEFUN ("process-name", Fprocess_name, Sprocess_name, 1, 1, 0, | |
fdb82f93 PJ |
948 | doc: /* Return the name of PROCESS, as a string. |
949 | This is the name of the program invoked in PROCESS, | |
950 | possibly modified to make it unique among process names. */) | |
5842a27b | 951 | (register Lisp_Object process) |
d0d6b7c5 | 952 | { |
b7826503 | 953 | CHECK_PROCESS (process); |
4d2b044c | 954 | return XPROCESS (process)->name; |
d0d6b7c5 JB |
955 | } |
956 | ||
957 | DEFUN ("process-command", Fprocess_command, Sprocess_command, 1, 1, 0, | |
fdb82f93 PJ |
958 | doc: /* Return the command that was executed to start PROCESS. |
959 | This is a list of strings, the first string being the program executed | |
960 | and the rest of the strings being the arguments given to it. | |
d888760c GM |
961 | For a network or serial process, this is nil (process is running) or t |
962 | \(process is stopped). */) | |
5842a27b | 963 | (register Lisp_Object process) |
d0d6b7c5 | 964 | { |
b7826503 | 965 | CHECK_PROCESS (process); |
4d2b044c | 966 | return XPROCESS (process)->command; |
d0d6b7c5 JB |
967 | } |
968 | ||
3b9a3dfa | 969 | DEFUN ("process-tty-name", Fprocess_tty_name, Sprocess_tty_name, 1, 1, 0, |
fdb82f93 PJ |
970 | doc: /* Return the name of the terminal PROCESS uses, or nil if none. |
971 | This is the terminal that the process itself reads and writes on, | |
972 | not the name of the pty that Emacs uses to talk with that terminal. */) | |
5842a27b | 973 | (register Lisp_Object process) |
3b9a3dfa | 974 | { |
b7826503 | 975 | CHECK_PROCESS (process); |
4d2b044c | 976 | return XPROCESS (process)->tty_name; |
3b9a3dfa RS |
977 | } |
978 | ||
d0d6b7c5 | 979 | DEFUN ("set-process-buffer", Fset_process_buffer, Sset_process_buffer, |
fdb82f93 | 980 | 2, 2, 0, |
76147d94 DD |
981 | doc: /* Set buffer associated with PROCESS to BUFFER (a buffer, or nil). |
982 | Return BUFFER. */) | |
5842a27b | 983 | (register Lisp_Object process, Lisp_Object buffer) |
d0d6b7c5 | 984 | { |
e690ca94 KS |
985 | struct Lisp_Process *p; |
986 | ||
b7826503 | 987 | CHECK_PROCESS (process); |
d0d6b7c5 | 988 | if (!NILP (buffer)) |
b7826503 | 989 | CHECK_BUFFER (buffer); |
e690ca94 | 990 | p = XPROCESS (process); |
6a09a33b | 991 | pset_buffer (p, buffer); |
d888760c | 992 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
6a09a33b | 993 | pset_childp (p, Fplist_put (p->childp, QCbuffer, buffer)); |
03f04413 | 994 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
995 | return buffer; |
996 | } | |
997 | ||
998 | DEFUN ("process-buffer", Fprocess_buffer, Sprocess_buffer, | |
fdb82f93 PJ |
999 | 1, 1, 0, |
1000 | doc: /* Return the buffer PROCESS is associated with. | |
1001 | Output from PROCESS is inserted in this buffer unless PROCESS has a filter. */) | |
5842a27b | 1002 | (register Lisp_Object process) |
d0d6b7c5 | 1003 | { |
b7826503 | 1004 | CHECK_PROCESS (process); |
4d2b044c | 1005 | return XPROCESS (process)->buffer; |
d0d6b7c5 JB |
1006 | } |
1007 | ||
1008 | DEFUN ("process-mark", Fprocess_mark, Sprocess_mark, | |
fdb82f93 PJ |
1009 | 1, 1, 0, |
1010 | doc: /* Return the marker for the end of the last output from PROCESS. */) | |
5842a27b | 1011 | (register Lisp_Object process) |
d0d6b7c5 | 1012 | { |
b7826503 | 1013 | CHECK_PROCESS (process); |
4d2b044c | 1014 | return XPROCESS (process)->mark; |
d0d6b7c5 JB |
1015 | } |
1016 | ||
1017 | DEFUN ("set-process-filter", Fset_process_filter, Sset_process_filter, | |
fdb82f93 | 1018 | 2, 2, 0, |
1aa8d505 | 1019 | doc: /* Give PROCESS the filter function FILTER; nil means default. |
7b82c3b6 | 1020 | A value of t means stop accepting output from the process. |
3452df9e | 1021 | |
1aa8d505 | 1022 | When a process has a non-default filter, its buffer is not used for output. |
3452df9e | 1023 | Instead, each time it does output, the entire string of output is |
177c0ea7 | 1024 | passed to the filter. |
3452df9e | 1025 | |
fdb82f93 | 1026 | The filter gets two arguments: the process and the string of output. |
3452df9e KS |
1027 | The string argument is normally a multibyte string, except: |
1028 | - if the process' input coding system is no-conversion or raw-text, | |
1029 | it is a unibyte string (the non-converted input), or else | |
1030 | - if `default-enable-multibyte-characters' is nil, it is a unibyte | |
1031 | string (the result of converting the decoded input multibyte | |
1032 | string to unibyte with `string-make-unibyte'). */) | |
5842a27b | 1033 | (register Lisp_Object process, Lisp_Object filter) |
d0d6b7c5 | 1034 | { |
471f86b9 | 1035 | struct Lisp_Process *p; |
177c0ea7 | 1036 | |
b7826503 | 1037 | CHECK_PROCESS (process); |
471f86b9 GM |
1038 | p = XPROCESS (process); |
1039 | ||
1040 | /* Don't signal an error if the process' input file descriptor | |
1041 | is closed. This could make debugging Lisp more difficult, | |
1042 | for example when doing something like | |
1043 | ||
1044 | (setq process (start-process ...)) | |
1045 | (debug) | |
1046 | (set-process-filter process ...) */ | |
177c0ea7 | 1047 | |
1aa8d505 SM |
1048 | if (NILP (filter)) |
1049 | filter = Qinternal_default_process_filter; | |
1050 | ||
60f0fb11 | 1051 | if (p->infd >= 0) |
a69281ff | 1052 | { |
4d2b044c | 1053 | if (EQ (filter, Qt) && !EQ (p->status, Qlisten)) |
471f86b9 | 1054 | { |
60f0fb11 SM |
1055 | FD_CLR (p->infd, &input_wait_mask); |
1056 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 1057 | } |
4d2b044c | 1058 | else if (EQ (p->filter, Qt) |
d888760c | 1059 | /* Network or serial process not stopped: */ |
4d2b044c | 1060 | && !EQ (p->command, Qt)) |
471f86b9 | 1061 | { |
60f0fb11 SM |
1062 | FD_SET (p->infd, &input_wait_mask); |
1063 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 1064 | } |
a69281ff | 1065 | } |
177c0ea7 | 1066 | |
6a09a33b | 1067 | pset_filter (p, filter); |
d888760c | 1068 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
6a09a33b | 1069 | pset_childp (p, Fplist_put (p->childp, QCfilter, filter)); |
03f04413 | 1070 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
1071 | return filter; |
1072 | } | |
1073 | ||
1074 | DEFUN ("process-filter", Fprocess_filter, Sprocess_filter, | |
fdb82f93 | 1075 | 1, 1, 0, |
1aa8d505 | 1076 | doc: /* Return the filter function of PROCESS. |
fdb82f93 | 1077 | See `set-process-filter' for more info on filter functions. */) |
5842a27b | 1078 | (register Lisp_Object process) |
d0d6b7c5 | 1079 | { |
b7826503 | 1080 | CHECK_PROCESS (process); |
4d2b044c | 1081 | return XPROCESS (process)->filter; |
d0d6b7c5 JB |
1082 | } |
1083 | ||
1084 | DEFUN ("set-process-sentinel", Fset_process_sentinel, Sset_process_sentinel, | |
fdb82f93 | 1085 | 2, 2, 0, |
1aa8d505 | 1086 | doc: /* Give PROCESS the sentinel SENTINEL; nil for default. |
fdb82f93 PJ |
1087 | The sentinel is called as a function when the process changes state. |
1088 | It gets two arguments: the process, and a string describing the change. */) | |
5842a27b | 1089 | (register Lisp_Object process, Lisp_Object sentinel) |
d0d6b7c5 | 1090 | { |
6b61353c KH |
1091 | struct Lisp_Process *p; |
1092 | ||
b7826503 | 1093 | CHECK_PROCESS (process); |
6b61353c KH |
1094 | p = XPROCESS (process); |
1095 | ||
1aa8d505 SM |
1096 | if (NILP (sentinel)) |
1097 | sentinel = Qinternal_default_process_sentinel; | |
1098 | ||
6a09a33b | 1099 | pset_sentinel (p, sentinel); |
d888760c | 1100 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
6a09a33b | 1101 | pset_childp (p, Fplist_put (p->childp, QCsentinel, sentinel)); |
d0d6b7c5 JB |
1102 | return sentinel; |
1103 | } | |
1104 | ||
1105 | DEFUN ("process-sentinel", Fprocess_sentinel, Sprocess_sentinel, | |
fdb82f93 | 1106 | 1, 1, 0, |
1aa8d505 | 1107 | doc: /* Return the sentinel of PROCESS. |
fdb82f93 | 1108 | See `set-process-sentinel' for more info on sentinels. */) |
5842a27b | 1109 | (register Lisp_Object process) |
d0d6b7c5 | 1110 | { |
b7826503 | 1111 | CHECK_PROCESS (process); |
4d2b044c | 1112 | return XPROCESS (process)->sentinel; |
d0d6b7c5 JB |
1113 | } |
1114 | ||
396df322 | 1115 | DEFUN ("set-process-window-size", Fset_process_window_size, |
fdb82f93 PJ |
1116 | Sset_process_window_size, 3, 3, 0, |
1117 | doc: /* Tell PROCESS that it has logical window size HEIGHT and WIDTH. */) | |
5842a27b | 1118 | (register Lisp_Object process, Lisp_Object height, Lisp_Object width) |
396df322 | 1119 | { |
b7826503 | 1120 | CHECK_PROCESS (process); |
af5a5a98 AS |
1121 | CHECK_RANGED_INTEGER (height, 0, INT_MAX); |
1122 | CHECK_RANGED_INTEGER (width, 0, INT_MAX); | |
177c0ea7 | 1123 | |
60f0fb11 SM |
1124 | if (XPROCESS (process)->infd < 0 |
1125 | || set_window_size (XPROCESS (process)->infd, | |
471f86b9 | 1126 | XINT (height), XINT (width)) <= 0) |
396df322 RS |
1127 | return Qnil; |
1128 | else | |
1129 | return Qt; | |
1130 | } | |
1131 | ||
52a1b894 | 1132 | DEFUN ("set-process-inherit-coding-system-flag", |
fdb82f93 PJ |
1133 | Fset_process_inherit_coding_system_flag, |
1134 | Sset_process_inherit_coding_system_flag, 2, 2, 0, | |
1135 | doc: /* Determine whether buffer of PROCESS will inherit coding-system. | |
1136 | If the second argument FLAG is non-nil, then the variable | |
1137 | `buffer-file-coding-system' of the buffer associated with PROCESS | |
1138 | will be bound to the value of the coding system used to decode | |
1139 | the process output. | |
1140 | ||
1141 | This is useful when the coding system specified for the process buffer | |
1142 | leaves either the character code conversion or the end-of-line conversion | |
1143 | unspecified, or if the coding system used to decode the process output | |
1144 | is more appropriate for saving the process buffer. | |
1145 | ||
1146 | Binding the variable `inherit-process-coding-system' to non-nil before | |
1147 | starting the process is an alternative way of setting the inherit flag | |
016a35df GM |
1148 | for the process which will run. |
1149 | ||
1150 | This function returns FLAG. */) | |
5842a27b | 1151 | (register Lisp_Object process, Lisp_Object flag) |
52a1b894 | 1152 | { |
b7826503 | 1153 | CHECK_PROCESS (process); |
60f0fb11 | 1154 | XPROCESS (process)->inherit_coding_system_flag = !NILP (flag); |
52a1b894 EZ |
1155 | return flag; |
1156 | } | |
1157 | ||
e690ca94 KS |
1158 | DEFUN ("set-process-query-on-exit-flag", |
1159 | Fset_process_query_on_exit_flag, Sset_process_query_on_exit_flag, | |
1160 | 2, 2, 0, | |
1161 | doc: /* Specify if query is needed for PROCESS when Emacs is exited. | |
f3d9532b | 1162 | If the second argument FLAG is non-nil, Emacs will query the user before |
016a35df GM |
1163 | exiting or killing a buffer if PROCESS is running. This function |
1164 | returns FLAG. */) | |
5842a27b | 1165 | (register Lisp_Object process, Lisp_Object flag) |
d0d6b7c5 | 1166 | { |
b7826503 | 1167 | CHECK_PROCESS (process); |
60f0fb11 | 1168 | XPROCESS (process)->kill_without_query = NILP (flag); |
e690ca94 | 1169 | return flag; |
d0d6b7c5 | 1170 | } |
312c9964 | 1171 | |
e690ca94 KS |
1172 | DEFUN ("process-query-on-exit-flag", |
1173 | Fprocess_query_on_exit_flag, Sprocess_query_on_exit_flag, | |
fdb82f93 | 1174 | 1, 1, 0, |
f3d9532b | 1175 | doc: /* Return the current value of query-on-exit flag for PROCESS. */) |
5842a27b | 1176 | (register Lisp_Object process) |
de282a05 | 1177 | { |
b7826503 | 1178 | CHECK_PROCESS (process); |
60f0fb11 | 1179 | return (XPROCESS (process)->kill_without_query ? Qnil : Qt); |
e690ca94 KS |
1180 | } |
1181 | ||
e690ca94 KS |
1182 | DEFUN ("process-contact", Fprocess_contact, Sprocess_contact, |
1183 | 1, 2, 0, | |
1184 | doc: /* Return the contact info of PROCESS; t for a real child. | |
d888760c GM |
1185 | For a network or serial connection, the value depends on the optional |
1186 | KEY arg. If KEY is nil, value is a cons cell of the form (HOST | |
1187 | SERVICE) for a network connection or (PORT SPEED) for a serial | |
1188 | connection. If KEY is t, the complete contact information for the | |
1189 | connection is returned, else the specific value for the keyword KEY is | |
1190 | returned. See `make-network-process' or `make-serial-process' for a | |
1191 | list of keywords. */) | |
5842a27b | 1192 | (register Lisp_Object process, Lisp_Object key) |
e690ca94 KS |
1193 | { |
1194 | Lisp_Object contact; | |
1195 | ||
1196 | CHECK_PROCESS (process); | |
4d2b044c | 1197 | contact = XPROCESS (process)->childp; |
e690ca94 KS |
1198 | |
1199 | #ifdef DATAGRAM_SOCKETS | |
1200 | if (DATAGRAM_CONN_P (process) | |
1201 | && (EQ (key, Qt) || EQ (key, QCremote))) | |
177c0ea7 | 1202 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
1203 | Fprocess_datagram_address (process)); |
1204 | #endif | |
1205 | ||
d888760c | 1206 | if ((!NETCONN_P (process) && !SERIALCONN_P (process)) || EQ (key, Qt)) |
e690ca94 | 1207 | return contact; |
d888760c | 1208 | if (NILP (key) && NETCONN_P (process)) |
6c6f1994 PE |
1209 | return list2 (Fplist_get (contact, QChost), |
1210 | Fplist_get (contact, QCservice)); | |
d888760c | 1211 | if (NILP (key) && SERIALCONN_P (process)) |
6c6f1994 PE |
1212 | return list2 (Fplist_get (contact, QCport), |
1213 | Fplist_get (contact, QCspeed)); | |
e690ca94 | 1214 | return Fplist_get (contact, key); |
de282a05 RS |
1215 | } |
1216 | ||
faa7db08 KS |
1217 | DEFUN ("process-plist", Fprocess_plist, Sprocess_plist, |
1218 | 1, 1, 0, | |
1219 | doc: /* Return the plist of PROCESS. */) | |
5842a27b | 1220 | (register Lisp_Object process) |
365aee82 | 1221 | { |
ac4a7584 | 1222 | CHECK_PROCESS (process); |
4d2b044c | 1223 | return XPROCESS (process)->plist; |
ac4a7584 | 1224 | } |
365aee82 | 1225 | |
faa7db08 KS |
1226 | DEFUN ("set-process-plist", Fset_process_plist, Sset_process_plist, |
1227 | 2, 2, 0, | |
26a086c6 | 1228 | doc: /* Replace the plist of PROCESS with PLIST. Returns PLIST. */) |
5842a27b | 1229 | (register Lisp_Object process, Lisp_Object plist) |
ac4a7584 | 1230 | { |
365aee82 | 1231 | CHECK_PROCESS (process); |
faa7db08 | 1232 | CHECK_LIST (plist); |
365aee82 | 1233 | |
6a09a33b | 1234 | pset_plist (XPROCESS (process), plist); |
26a086c6 | 1235 | return plist; |
365aee82 KS |
1236 | } |
1237 | ||
312c9964 RS |
1238 | #if 0 /* Turned off because we don't currently record this info |
1239 | in the process. Perhaps add it. */ | |
1240 | DEFUN ("process-connection", Fprocess_connection, Sprocess_connection, 1, 1, 0, | |
fdb82f93 PJ |
1241 | doc: /* Return the connection type of PROCESS. |
1242 | The value is nil for a pipe, t or `pty' for a pty, or `stream' for | |
1243 | a socket connection. */) | |
5842a27b | 1244 | (Lisp_Object process) |
312c9964 | 1245 | { |
4d2b044c | 1246 | return XPROCESS (process)->type; |
312c9964 RS |
1247 | } |
1248 | #endif | |
2a7bb882 | 1249 | |
d888760c GM |
1250 | DEFUN ("process-type", Fprocess_type, Sprocess_type, 1, 1, 0, |
1251 | doc: /* Return the connection type of PROCESS. | |
1252 | The value is either the symbol `real', `network', or `serial'. | |
1253 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
1254 | nil, indicating the current buffer's process. */) | |
5842a27b | 1255 | (Lisp_Object process) |
d888760c GM |
1256 | { |
1257 | Lisp_Object proc; | |
1258 | proc = get_process (process); | |
4d2b044c | 1259 | return XPROCESS (proc)->type; |
d888760c | 1260 | } |
991234f0 | 1261 | |
991234f0 | 1262 | DEFUN ("format-network-address", Fformat_network_address, Sformat_network_address, |
0dccee41 | 1263 | 1, 2, 0, |
991234f0 | 1264 | doc: /* Convert network ADDRESS from internal format to a string. |
e1652a86 KS |
1265 | A 4 or 5 element vector represents an IPv4 address (with port number). |
1266 | An 8 or 9 element vector represents an IPv6 address (with port number). | |
0dccee41 | 1267 | If optional second argument OMIT-PORT is non-nil, don't include a port |
e1652a86 KS |
1268 | number in the string, even when present in ADDRESS. |
1269 | Returns nil if format of ADDRESS is invalid. */) | |
5842a27b | 1270 | (Lisp_Object address, Lisp_Object omit_port) |
991234f0 | 1271 | { |
991234f0 KS |
1272 | if (NILP (address)) |
1273 | return Qnil; | |
1274 | ||
1275 | if (STRINGP (address)) /* AF_LOCAL */ | |
1276 | return address; | |
1277 | ||
e1652a86 | 1278 | if (VECTORP (address)) /* AF_INET or AF_INET6 */ |
991234f0 KS |
1279 | { |
1280 | register struct Lisp_Vector *p = XVECTOR (address); | |
d311d28c | 1281 | ptrdiff_t size = p->header.size; |
ded83665 | 1282 | Lisp_Object args[10]; |
0dccee41 | 1283 | int nargs, i; |
991234f0 | 1284 | |
eab3844f | 1285 | if (size == 4 || (size == 5 && !NILP (omit_port))) |
0dccee41 KS |
1286 | { |
1287 | args[0] = build_string ("%d.%d.%d.%d"); | |
1288 | nargs = 4; | |
1289 | } | |
eab3844f | 1290 | else if (size == 5) |
0dccee41 KS |
1291 | { |
1292 | args[0] = build_string ("%d.%d.%d.%d:%d"); | |
1293 | nargs = 5; | |
1294 | } | |
eab3844f | 1295 | else if (size == 8 || (size == 9 && !NILP (omit_port))) |
e1652a86 KS |
1296 | { |
1297 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
1298 | nargs = 8; | |
1299 | } | |
eab3844f | 1300 | else if (size == 9) |
e1652a86 KS |
1301 | { |
1302 | args[0] = build_string ("[%x:%x:%x:%x:%x:%x:%x:%x]:%d"); | |
1303 | nargs = 9; | |
1304 | } | |
0dccee41 | 1305 | else |
991234f0 KS |
1306 | return Qnil; |
1307 | ||
0dccee41 | 1308 | for (i = 0; i < nargs; i++) |
cbf23adb | 1309 | { |
d311d28c | 1310 | if (! RANGED_INTEGERP (0, p->contents[i], 65535)) |
cbf23adb JB |
1311 | return Qnil; |
1312 | ||
1313 | if (nargs <= 5 /* IPv4 */ | |
1314 | && i < 4 /* host, not port */ | |
d311d28c | 1315 | && XINT (p->contents[i]) > 255) |
cbf23adb JB |
1316 | return Qnil; |
1317 | ||
1318 | args[i+1] = p->contents[i]; | |
1319 | } | |
1320 | ||
0dccee41 | 1321 | return Fformat (nargs+1, args); |
991234f0 KS |
1322 | } |
1323 | ||
1324 | if (CONSP (address)) | |
1325 | { | |
1326 | Lisp_Object args[2]; | |
1327 | args[0] = build_string ("<Family %d>"); | |
8d2ff840 | 1328 | args[1] = Fcar (address); |
991234f0 | 1329 | return Fformat (2, args); |
991234f0 KS |
1330 | } |
1331 | ||
1332 | return Qnil; | |
1333 | } | |
d0d6b7c5 JB |
1334 | |
1335 | DEFUN ("process-list", Fprocess_list, Sprocess_list, 0, 0, 0, | |
fdb82f93 | 1336 | doc: /* Return a list of all processes. */) |
5842a27b | 1337 | (void) |
d0d6b7c5 JB |
1338 | { |
1339 | return Fmapcar (Qcdr, Vprocess_alist); | |
1340 | } | |
1341 | \f | |
b0310da4 JB |
1342 | /* Starting asynchronous inferior processes. */ |
1343 | ||
27e498e6 | 1344 | static void start_process_unwind (Lisp_Object proc); |
b0310da4 | 1345 | |
d0d6b7c5 | 1346 | DEFUN ("start-process", Fstart_process, Sstart_process, 3, MANY, 0, |
fdb82f93 PJ |
1347 | doc: /* Start a program in a subprocess. Return the process object for it. |
1348 | NAME is name for process. It is modified if necessary to make it unique. | |
553acde5 | 1349 | BUFFER is the buffer (or buffer name) to associate with the process. |
4b6c5eee EZ |
1350 | |
1351 | Process output (both standard output and standard error streams) goes | |
1352 | at end of BUFFER, unless you specify an output stream or filter | |
1353 | function to handle the output. BUFFER may also be nil, meaning that | |
16fdeb17 RS |
1354 | this process is not associated with any buffer. |
1355 | ||
6b8bc570 CY |
1356 | PROGRAM is the program file name. It is searched for in `exec-path' |
1357 | (which see). If nil, just associate a pty with the buffer. Remaining | |
1358 | arguments are strings to give program as arguments. | |
320aebc9 | 1359 | |
4b6c5eee EZ |
1360 | If you want to separate standard output from standard error, invoke |
1361 | the command through a shell and redirect one of them using the shell | |
1362 | syntax. | |
320aebc9 | 1363 | |
3ecdf100 | 1364 | usage: (start-process NAME BUFFER PROGRAM &rest PROGRAM-ARGS) */) |
f66c7cf8 | 1365 | (ptrdiff_t nargs, Lisp_Object *args) |
d0d6b7c5 | 1366 | { |
1e30af70 | 1367 | Lisp_Object buffer, name, program, proc, current_dir, tem; |
d0d6b7c5 | 1368 | register unsigned char **new_argv; |
f66c7cf8 | 1369 | ptrdiff_t i; |
d311d28c | 1370 | ptrdiff_t count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
1371 | |
1372 | buffer = args[1]; | |
1373 | if (!NILP (buffer)) | |
1374 | buffer = Fget_buffer_create (buffer); | |
1375 | ||
1e30af70 JB |
1376 | /* Make sure that the child will be able to chdir to the current |
1377 | buffer's current directory, or its unhandled equivalent. We | |
1378 | can't just have the child check for an error when it does the | |
1379 | chdir, since it's in a vfork. | |
1380 | ||
1381 | We have to GCPRO around this because Fexpand_file_name and | |
1382 | Funhandled_file_name_directory might call a file name handling | |
1383 | function. The argument list is protected by the caller, so all | |
1384 | we really have to worry about is buffer. */ | |
1385 | { | |
1386 | struct gcpro gcpro1, gcpro2; | |
1387 | ||
4b4deea2 | 1388 | current_dir = BVAR (current_buffer, directory); |
1e30af70 JB |
1389 | |
1390 | GCPRO2 (buffer, current_dir); | |
1391 | ||
ca319910 SM |
1392 | current_dir = Funhandled_file_name_directory (current_dir); |
1393 | if (NILP (current_dir)) | |
1394 | /* If the file name handler says that current_dir is unreachable, use | |
1395 | a sensible default. */ | |
1396 | current_dir = build_string ("~/"); | |
1397 | current_dir = expand_and_dir_to_file (current_dir, Qnil); | |
1e30af70 JB |
1398 | if (NILP (Ffile_accessible_directory_p (current_dir))) |
1399 | report_file_error ("Setting current directory", | |
a9757f6a | 1400 | BVAR (current_buffer, directory)); |
1e30af70 JB |
1401 | |
1402 | UNGCPRO; | |
1403 | } | |
1404 | ||
d0d6b7c5 | 1405 | name = args[0]; |
b7826503 | 1406 | CHECK_STRING (name); |
d0d6b7c5 JB |
1407 | |
1408 | program = args[2]; | |
1409 | ||
850d0752 NR |
1410 | if (!NILP (program)) |
1411 | CHECK_STRING (program); | |
d0d6b7c5 | 1412 | |
d0d6b7c5 | 1413 | proc = make_process (name); |
b0310da4 JB |
1414 | /* If an error occurs and we can't start the process, we want to |
1415 | remove it from the process list. This means that each error | |
1416 | check in create_process doesn't need to call remove_process | |
1417 | itself; it's all taken care of here. */ | |
1418 | record_unwind_protect (start_process_unwind, proc); | |
d0d6b7c5 | 1419 | |
6a09a33b PE |
1420 | pset_childp (XPROCESS (proc), Qt); |
1421 | pset_plist (XPROCESS (proc), Qnil); | |
1422 | pset_type (XPROCESS (proc), Qreal); | |
1423 | pset_buffer (XPROCESS (proc), buffer); | |
1aa8d505 SM |
1424 | pset_sentinel (XPROCESS (proc), Qinternal_default_process_sentinel); |
1425 | pset_filter (XPROCESS (proc), Qinternal_default_process_filter); | |
6a09a33b | 1426 | pset_command (XPROCESS (proc), Flist (nargs - 2, args + 2)); |
d0d6b7c5 | 1427 | |
8af55556 TZ |
1428 | #ifdef HAVE_GNUTLS |
1429 | /* AKA GNUTLS_INITSTAGE(proc). */ | |
1430 | XPROCESS (proc)->gnutls_initstage = GNUTLS_STAGE_EMPTY; | |
6a09a33b | 1431 | pset_gnutls_cred_type (XPROCESS (proc), Qnil); |
8af55556 TZ |
1432 | #endif |
1433 | ||
6b61353c | 1434 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
1435 | XPROCESS (proc)->adaptive_read_buffering |
1436 | = (NILP (Vprocess_adaptive_read_buffering) ? 0 | |
1437 | : EQ (Vprocess_adaptive_read_buffering, Qt) ? 1 : 2); | |
6b61353c KH |
1438 | #endif |
1439 | ||
7af71e17 | 1440 | /* Make the process marker point into the process buffer (if any). */ |
f523e0c3 | 1441 | if (BUFFERP (buffer)) |
4d2b044c | 1442 | set_marker_both (XPROCESS (proc)->mark, buffer, |
d8a2934e RS |
1443 | BUF_ZV (XBUFFER (buffer)), |
1444 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
7af71e17 | 1445 | |
67918941 | 1446 | { |
d5d4ae71 KH |
1447 | /* Decide coding systems for communicating with the process. Here |
1448 | we don't setup the structure coding_system nor pay attention to | |
1449 | unibyte mode. They are done in create_process. */ | |
1450 | ||
67918941 RS |
1451 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ |
1452 | Lisp_Object coding_systems = Qt; | |
1453 | Lisp_Object val, *args2; | |
a4a37e65 | 1454 | struct gcpro gcpro1, gcpro2; |
67918941 | 1455 | |
d5d4ae71 KH |
1456 | val = Vcoding_system_for_read; |
1457 | if (NILP (val)) | |
67918941 | 1458 | { |
38182d90 | 1459 | args2 = alloca ((nargs + 1) * sizeof *args2); |
67918941 RS |
1460 | args2[0] = Qstart_process; |
1461 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1462 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1463 | if (!NILP (program)) |
1464 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1465 | UNGCPRO; |
1466 | if (CONSP (coding_systems)) | |
70949dac | 1467 | val = XCAR (coding_systems); |
67918941 | 1468 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1469 | val = XCAR (Vdefault_process_coding_system); |
67918941 | 1470 | } |
6a09a33b | 1471 | pset_decode_coding_system (XPROCESS (proc), val); |
67918941 | 1472 | |
d5d4ae71 KH |
1473 | val = Vcoding_system_for_write; |
1474 | if (NILP (val)) | |
67918941 RS |
1475 | { |
1476 | if (EQ (coding_systems, Qt)) | |
1477 | { | |
38182d90 | 1478 | args2 = alloca ((nargs + 1) * sizeof *args2); |
67918941 RS |
1479 | args2[0] = Qstart_process; |
1480 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1481 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1482 | if (!NILP (program)) |
1483 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1484 | UNGCPRO; |
1485 | } | |
1486 | if (CONSP (coding_systems)) | |
70949dac | 1487 | val = XCDR (coding_systems); |
67918941 | 1488 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1489 | val = XCDR (Vdefault_process_coding_system); |
67918941 | 1490 | } |
6a09a33b | 1491 | pset_encode_coding_system (XPROCESS (proc), val); |
e1dbe924 | 1492 | /* Note: At this moment, the above coding system may leave |
fcaf8878 KH |
1493 | text-conversion or eol-conversion unspecified. They will be |
1494 | decided after we read output from the process and decode it by | |
1495 | some coding system, or just before we actually send a text to | |
1496 | the process. */ | |
67918941 | 1497 | } |
0fa1789e | 1498 | |
a4a37e65 | 1499 | |
6a09a33b | 1500 | pset_decoding_buf (XPROCESS (proc), empty_unibyte_string); |
850d0752 | 1501 | XPROCESS (proc)->decoding_carryover = 0; |
6a09a33b | 1502 | pset_encoding_buf (XPROCESS (proc), empty_unibyte_string); |
ed30cf85 | 1503 | |
850d0752 NR |
1504 | XPROCESS (proc)->inherit_coding_system_flag |
1505 | = !(NILP (buffer) || !inherit_process_coding_system); | |
77bf07e1 | 1506 | |
850d0752 NR |
1507 | if (!NILP (program)) |
1508 | { | |
1509 | /* If program file name is not absolute, search our path for it. | |
1510 | Put the name we will really use in TEM. */ | |
1511 | if (!IS_DIRECTORY_SEP (SREF (program, 0)) | |
1512 | && !(SCHARS (program) > 1 | |
1513 | && IS_DEVICE_SEP (SREF (program, 1)))) | |
1514 | { | |
1515 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1516 | ||
1517 | tem = Qnil; | |
1518 | GCPRO4 (name, program, buffer, current_dir); | |
1519 | openp (Vexec_path, program, Vexec_suffixes, &tem, make_number (X_OK)); | |
1520 | UNGCPRO; | |
1521 | if (NILP (tem)) | |
a9757f6a | 1522 | report_file_error ("Searching for program", program); |
850d0752 NR |
1523 | tem = Fexpand_file_name (tem, Qnil); |
1524 | } | |
1525 | else | |
1526 | { | |
1527 | if (!NILP (Ffile_directory_p (program))) | |
1528 | error ("Specified program for new process is a directory"); | |
1529 | tem = program; | |
1530 | } | |
ed30cf85 | 1531 | |
850d0752 NR |
1532 | /* If program file name starts with /: for quoting a magic name, |
1533 | discard that. */ | |
1534 | if (SBYTES (tem) > 2 && SREF (tem, 0) == '/' | |
1535 | && SREF (tem, 1) == ':') | |
1536 | tem = Fsubstring (tem, make_number (2), Qnil); | |
77bf07e1 | 1537 | |
77bf07e1 | 1538 | { |
fcaf8878 | 1539 | Lisp_Object arg_encoding = Qnil; |
850d0752 NR |
1540 | struct gcpro gcpro1; |
1541 | GCPRO1 (tem); | |
a4a37e65 | 1542 | |
850d0752 NR |
1543 | /* Encode the file name and put it in NEW_ARGV. |
1544 | That's where the child will use it to execute the program. */ | |
6c6f1994 | 1545 | tem = list1 (ENCODE_FILE (tem)); |
77bf07e1 | 1546 | |
850d0752 NR |
1547 | /* Here we encode arguments by the coding system used for sending |
1548 | data to the process. We don't support using different coding | |
1549 | systems for encoding arguments and for encoding data sent to the | |
1550 | process. */ | |
77bf07e1 | 1551 | |
850d0752 NR |
1552 | for (i = 3; i < nargs; i++) |
1553 | { | |
1554 | tem = Fcons (args[i], tem); | |
1555 | CHECK_STRING (XCAR (tem)); | |
1556 | if (STRING_MULTIBYTE (XCAR (tem))) | |
fcaf8878 KH |
1557 | { |
1558 | if (NILP (arg_encoding)) | |
1559 | arg_encoding = (complement_process_encoding_system | |
4d2b044c | 1560 | (XPROCESS (proc)->encode_coding_system)); |
fcaf8878 KH |
1561 | XSETCAR (tem, |
1562 | code_convert_string_norecord | |
1563 | (XCAR (tem), arg_encoding, 1)); | |
1564 | } | |
850d0752 | 1565 | } |
a4a37e65 | 1566 | |
850d0752 NR |
1567 | UNGCPRO; |
1568 | } | |
0fa1789e | 1569 | |
850d0752 NR |
1570 | /* Now that everything is encoded we can collect the strings into |
1571 | NEW_ARGV. */ | |
38182d90 | 1572 | new_argv = alloca ((nargs - 1) * sizeof *new_argv); |
850d0752 | 1573 | new_argv[nargs - 2] = 0; |
52a1b894 | 1574 | |
c5101a77 | 1575 | for (i = nargs - 2; i-- != 0; ) |
850d0752 NR |
1576 | { |
1577 | new_argv[i] = SDATA (XCAR (tem)); | |
1578 | tem = XCDR (tem); | |
1579 | } | |
1580 | ||
1581 | create_process (proc, (char **) new_argv, current_dir); | |
1582 | } | |
1583 | else | |
1584 | create_pty (proc); | |
d0d6b7c5 | 1585 | |
b0310da4 | 1586 | return unbind_to (count, proc); |
d0d6b7c5 JB |
1587 | } |
1588 | ||
b0310da4 | 1589 | /* This function is the unwind_protect form for Fstart_process. If |
8e6208c5 | 1590 | PROC doesn't have its pid set, then we know someone has signaled |
b0310da4 JB |
1591 | an error and the process wasn't started successfully, so we should |
1592 | remove it from the process list. */ | |
27e498e6 | 1593 | static void |
d3da34e0 | 1594 | start_process_unwind (Lisp_Object proc) |
b0310da4 | 1595 | { |
bcd69aea | 1596 | if (!PROCESSP (proc)) |
1088b922 | 1597 | emacs_abort (); |
b0310da4 | 1598 | |
2bf26180 GM |
1599 | /* Was PROC started successfully? |
1600 | -2 is used for a pty with no process, eg for gdb. */ | |
1601 | if (XPROCESS (proc)->pid <= 0 && XPROCESS (proc)->pid != -2) | |
b0310da4 | 1602 | remove_process (proc); |
b0310da4 JB |
1603 | } |
1604 | ||
ff6daed3 | 1605 | static void |
d3da34e0 | 1606 | create_process_1 (struct atimer *timer) |
d0d6b7c5 | 1607 | { |
30904ab7 | 1608 | /* Nothing to do. */ |
d0d6b7c5 JB |
1609 | } |
1610 | ||
30904ab7 | 1611 | |
40ccffa6 | 1612 | static void |
cbd6509c | 1613 | create_process (Lisp_Object process, char **new_argv, Lisp_Object current_dir) |
d0d6b7c5 | 1614 | { |
29ed4d51 CY |
1615 | int inchannel, outchannel; |
1616 | pid_t pid; | |
a773ed9a | 1617 | int vfork_errno; |
d0d6b7c5 | 1618 | int sv[2]; |
49cdacda | 1619 | #ifndef WINDOWSNT |
2c4df143 YM |
1620 | int wait_child_setup[2]; |
1621 | #endif | |
cbd6509c PE |
1622 | int forkin, forkout; |
1623 | bool pty_flag = 0; | |
1624 | Lisp_Object lisp_pty_name = Qnil; | |
1625 | Lisp_Object encoded_current_dir; | |
d0d6b7c5 | 1626 | |
d0d6b7c5 JB |
1627 | inchannel = outchannel = -1; |
1628 | ||
1629 | #ifdef HAVE_PTYS | |
fe45da4e | 1630 | if (!NILP (Vprocess_connection_type)) |
d0d6b7c5 JB |
1631 | outchannel = inchannel = allocate_pty (); |
1632 | ||
d0d6b7c5 JB |
1633 | if (inchannel >= 0) |
1634 | { | |
2af70a0c RS |
1635 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) |
1636 | /* On most USG systems it does not work to open the pty's tty here, | |
1637 | then close it and reopen it in the child. */ | |
d0d6b7c5 JB |
1638 | /* Don't let this terminal become our controlling terminal |
1639 | (in case we don't have one). */ | |
68c45bf0 | 1640 | forkout = forkin = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); |
d0d6b7c5 JB |
1641 | if (forkin < 0) |
1642 | report_file_error ("Opening pty", Qnil); | |
1643 | #else | |
1644 | forkin = forkout = -1; | |
2af70a0c | 1645 | #endif /* not USG, or USG_SUBTTY_WORKS */ |
d0d6b7c5 | 1646 | pty_flag = 1; |
4d7e6e51 | 1647 | lisp_pty_name = build_string (pty_name); |
d0d6b7c5 JB |
1648 | } |
1649 | else | |
1650 | #endif /* HAVE_PTYS */ | |
d0d6b7c5 | 1651 | { |
c7ddc792 | 1652 | if (emacs_pipe (sv) != 0) |
fc14013c | 1653 | report_file_error ("Creating pipe", Qnil); |
d0d6b7c5 JB |
1654 | inchannel = sv[0]; |
1655 | forkout = sv[1]; | |
c7ddc792 | 1656 | if (emacs_pipe (sv) != 0) |
fc14013c | 1657 | { |
a773ed9a | 1658 | int pipe_errno = errno; |
68c45bf0 PE |
1659 | emacs_close (inchannel); |
1660 | emacs_close (forkout); | |
a773ed9a | 1661 | report_file_errno ("Creating pipe", Qnil, pipe_errno); |
fc14013c | 1662 | } |
d0d6b7c5 JB |
1663 | outchannel = sv[1]; |
1664 | forkin = sv[0]; | |
1665 | } | |
d0d6b7c5 | 1666 | |
49cdacda | 1667 | #ifndef WINDOWSNT |
c7ddc792 | 1668 | if (emacs_pipe (wait_child_setup) != 0) |
067428c1 | 1669 | report_file_error ("Creating pipe", Qnil); |
2c4df143 YM |
1670 | #endif |
1671 | ||
d0d6b7c5 | 1672 | fcntl (inchannel, F_SETFL, O_NONBLOCK); |
03832893 | 1673 | fcntl (outchannel, F_SETFL, O_NONBLOCK); |
d0d6b7c5 | 1674 | |
067428c1 | 1675 | /* Record this as an active process, with its channels. */ |
d0d6b7c5 | 1676 | chan_process[inchannel] = process; |
60f0fb11 SM |
1677 | XPROCESS (process)->infd = inchannel; |
1678 | XPROCESS (process)->outfd = outchannel; | |
16782258 JD |
1679 | |
1680 | /* Previously we recorded the tty descriptor used in the subprocess. | |
1681 | It was only used for getting the foreground tty process, so now | |
1682 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
1683 | more portable (see USG_SUBTTY_WORKS above). */ | |
1684 | ||
60f0fb11 | 1685 | XPROCESS (process)->pty_flag = pty_flag; |
6a09a33b | 1686 | pset_status (XPROCESS (process), Qrun); |
d0d6b7c5 | 1687 | |
3081bf8d | 1688 | FD_SET (inchannel, &input_wait_mask); |
a69281ff | 1689 | FD_SET (inchannel, &non_keyboard_wait_mask); |
3081bf8d KH |
1690 | if (inchannel > max_process_desc) |
1691 | max_process_desc = inchannel; | |
1692 | ||
0b3d4a47 | 1693 | /* This may signal an error. */ |
5cf2b69b KH |
1694 | setup_process_coding_systems (process); |
1695 | ||
4d7e6e51 | 1696 | encoded_current_dir = ENCODE_FILE (current_dir); |
177c0ea7 | 1697 | |
4d7e6e51 | 1698 | block_input (); |
fa55d2aa | 1699 | block_child_signal (); |
4d7e6e51 | 1700 | |
e98d950b | 1701 | #ifndef WINDOWSNT |
cbd6509c PE |
1702 | /* vfork, and prevent local vars from being clobbered by the vfork. */ |
1703 | { | |
1704 | Lisp_Object volatile encoded_current_dir_volatile = encoded_current_dir; | |
1705 | Lisp_Object volatile lisp_pty_name_volatile = lisp_pty_name; | |
1706 | Lisp_Object volatile process_volatile = process; | |
1707 | bool volatile pty_flag_volatile = pty_flag; | |
1708 | char **volatile new_argv_volatile = new_argv; | |
1709 | int volatile forkin_volatile = forkin; | |
1710 | int volatile forkout_volatile = forkout; | |
1711 | int volatile wait_child_setup_0_volatile = wait_child_setup[0]; | |
1712 | int volatile wait_child_setup_1_volatile = wait_child_setup[1]; | |
1713 | ||
1714 | pid = vfork (); | |
1715 | ||
1716 | encoded_current_dir = encoded_current_dir_volatile; | |
1717 | lisp_pty_name = lisp_pty_name_volatile; | |
1718 | process = process_volatile; | |
1719 | pty_flag = pty_flag_volatile; | |
1720 | new_argv = new_argv_volatile; | |
1721 | forkin = forkin_volatile; | |
1722 | forkout = forkout_volatile; | |
1723 | wait_child_setup[0] = wait_child_setup_0_volatile; | |
1724 | wait_child_setup[1] = wait_child_setup_1_volatile; | |
1725 | } | |
1726 | ||
4d7e6e51 | 1727 | if (pid == 0) |
e98d950b | 1728 | #endif /* not WINDOWSNT */ |
4d7e6e51 PE |
1729 | { |
1730 | int xforkin = forkin; | |
1731 | int xforkout = forkout; | |
d0d6b7c5 | 1732 | |
4d7e6e51 | 1733 | /* Make the pty be the controlling terminal of the process. */ |
d0d6b7c5 | 1734 | #ifdef HAVE_PTYS |
4d7e6e51 | 1735 | /* First, disconnect its current controlling terminal. */ |
4d7e6e51 PE |
1736 | /* We tried doing setsid only if pty_flag, but it caused |
1737 | process_set_signal to fail on SGI when using a pipe. */ | |
1738 | setsid (); | |
1739 | /* Make the pty's terminal the controlling terminal. */ | |
1740 | if (pty_flag && xforkin >= 0) | |
1741 | { | |
39e9ebcd | 1742 | #ifdef TIOCSCTTY |
4d7e6e51 PE |
1743 | /* We ignore the return value |
1744 | because faith@cs.unc.edu says that is necessary on Linux. */ | |
1745 | ioctl (xforkin, TIOCSCTTY, 0); | |
ce4c9c90 | 1746 | #endif |
4d7e6e51 | 1747 | } |
a7ebc409 | 1748 | #if defined (LDISC1) |
4d7e6e51 PE |
1749 | if (pty_flag && xforkin >= 0) |
1750 | { | |
1751 | struct termios t; | |
1752 | tcgetattr (xforkin, &t); | |
1753 | t.c_lflag = LDISC1; | |
1754 | if (tcsetattr (xforkin, TCSANOW, &t) < 0) | |
4ebbdd67 | 1755 | emacs_perror ("create_process/tcsetattr LDISC1"); |
4d7e6e51 | 1756 | } |
9bcf8ec6 | 1757 | #else |
aafadd9f | 1758 | #if defined (NTTYDISC) && defined (TIOCSETD) |
4d7e6e51 PE |
1759 | if (pty_flag && xforkin >= 0) |
1760 | { | |
1761 | /* Use new line discipline. */ | |
1762 | int ldisc = NTTYDISC; | |
1763 | ioctl (xforkin, TIOCSETD, &ldisc); | |
1764 | } | |
000ab717 | 1765 | #endif |
9bcf8ec6 | 1766 | #endif |
177c0ea7 | 1767 | #ifdef TIOCNOTTY |
4d7e6e51 PE |
1768 | /* In 4.3BSD, the TIOCSPGRP bug has been fixed, and now you |
1769 | can do TIOCSPGRP only to the process's controlling tty. */ | |
1770 | if (pty_flag) | |
1771 | { | |
1772 | /* I wonder: would just ioctl (0, TIOCNOTTY, 0) work here? | |
1773 | I can't test it since I don't have 4.3. */ | |
1774 | int j = emacs_open ("/dev/tty", O_RDWR, 0); | |
1775 | if (j >= 0) | |
1776 | { | |
1777 | ioctl (j, TIOCNOTTY, 0); | |
1778 | emacs_close (j); | |
1779 | } | |
4d7e6e51 | 1780 | } |
d0d6b7c5 JB |
1781 | #endif /* TIOCNOTTY */ |
1782 | ||
e39a993c | 1783 | #if !defined (DONT_REOPEN_PTY) |
d0d6b7c5 | 1784 | /*** There is a suggestion that this ought to be a |
dd0333b6 | 1785 | conditional on TIOCSPGRP, or !defined TIOCSCTTY. |
99153b9e RS |
1786 | Trying the latter gave the wrong results on Debian GNU/Linux 1.1; |
1787 | that system does seem to need this code, even though | |
dd0333b6 | 1788 | both TIOCSCTTY is defined. */ |
d0d6b7c5 JB |
1789 | /* Now close the pty (if we had it open) and reopen it. |
1790 | This makes the pty the controlling terminal of the subprocess. */ | |
4d7e6e51 PE |
1791 | if (pty_flag) |
1792 | { | |
99e3d726 | 1793 | |
4d7e6e51 PE |
1794 | /* I wonder if emacs_close (emacs_open (pty_name, ...)) |
1795 | would work? */ | |
1796 | if (xforkin >= 0) | |
1797 | emacs_close (xforkin); | |
1798 | xforkout = xforkin = emacs_open (pty_name, O_RDWR, 0); | |
d0d6b7c5 | 1799 | |
4d7e6e51 PE |
1800 | if (xforkin < 0) |
1801 | { | |
4ebbdd67 PE |
1802 | emacs_perror (pty_name); |
1803 | _exit (EXIT_CANCELED); | |
4d7e6e51 | 1804 | } |
4aa54ba8 | 1805 | |
4d7e6e51 | 1806 | } |
e39a993c | 1807 | #endif /* not DONT_REOPEN_PTY */ |
e9bf058b | 1808 | |
d0d6b7c5 | 1809 | #ifdef SETUP_SLAVE_PTY |
4d7e6e51 PE |
1810 | if (pty_flag) |
1811 | { | |
1812 | SETUP_SLAVE_PTY; | |
1813 | } | |
d0d6b7c5 | 1814 | #endif /* SETUP_SLAVE_PTY */ |
d0d6b7c5 JB |
1815 | #endif /* HAVE_PTYS */ |
1816 | ||
4d7e6e51 PE |
1817 | signal (SIGINT, SIG_DFL); |
1818 | signal (SIGQUIT, SIG_DFL); | |
1819 | ||
1820 | /* Emacs ignores SIGPIPE, but the child should not. */ | |
1821 | signal (SIGPIPE, SIG_DFL); | |
0dc70c33 | 1822 | |
fa55d2aa PE |
1823 | /* Stop blocking SIGCHLD in the child. */ |
1824 | unblock_child_signal (); | |
5e7e1da2 | 1825 | |
4d7e6e51 PE |
1826 | if (pty_flag) |
1827 | child_setup_tty (xforkout); | |
e98d950b | 1828 | #ifdef WINDOWSNT |
4d7e6e51 PE |
1829 | pid = child_setup (xforkin, xforkout, xforkout, |
1830 | new_argv, 1, encoded_current_dir); | |
177c0ea7 | 1831 | #else /* not WINDOWSNT */ |
4d7e6e51 PE |
1832 | child_setup (xforkin, xforkout, xforkout, |
1833 | new_argv, 1, encoded_current_dir); | |
e98d950b | 1834 | #endif /* not WINDOWSNT */ |
4d7e6e51 | 1835 | } |
d0d6b7c5 | 1836 | |
4d7e6e51 PE |
1837 | /* Back in the parent process. */ |
1838 | ||
a773ed9a | 1839 | vfork_errno = errno; |
4d7e6e51 | 1840 | XPROCESS (process)->pid = pid; |
908589fd | 1841 | if (pid >= 0) |
0b3d4a47 | 1842 | XPROCESS (process)->alive = 1; |
d0d6b7c5 | 1843 | |
fa55d2aa PE |
1844 | /* Stop blocking in the parent. */ |
1845 | unblock_child_signal (); | |
4d7e6e51 | 1846 | unblock_input (); |
ececcbec | 1847 | |
d0d6b7c5 | 1848 | if (pid < 0) |
6311cf58 RS |
1849 | { |
1850 | if (forkin >= 0) | |
68c45bf0 | 1851 | emacs_close (forkin); |
6311cf58 | 1852 | if (forkin != forkout && forkout >= 0) |
68c45bf0 | 1853 | emacs_close (forkout); |
a773ed9a | 1854 | report_file_errno ("Doing vfork", Qnil, vfork_errno); |
6311cf58 | 1855 | } |
4a127b3b KH |
1856 | else |
1857 | { | |
1858 | /* vfork succeeded. */ | |
d0d6b7c5 | 1859 | |
e98d950b | 1860 | #ifdef WINDOWSNT |
4a127b3b | 1861 | register_child (pid, inchannel); |
e98d950b RS |
1862 | #endif /* WINDOWSNT */ |
1863 | ||
4a127b3b KH |
1864 | /* If the subfork execv fails, and it exits, |
1865 | this close hangs. I don't know why. | |
1866 | So have an interrupt jar it loose. */ | |
30904ab7 GM |
1867 | { |
1868 | struct atimer *timer; | |
e9a9ae03 | 1869 | EMACS_TIME offset = make_emacs_time (1, 0); |
177c0ea7 | 1870 | |
30904ab7 | 1871 | stop_polling (); |
30904ab7 | 1872 | timer = start_atimer (ATIMER_RELATIVE, offset, create_process_1, 0); |
177c0ea7 | 1873 | |
30904ab7 GM |
1874 | if (forkin >= 0) |
1875 | emacs_close (forkin); | |
1876 | ||
1877 | cancel_atimer (timer); | |
1878 | start_polling (); | |
1879 | } | |
177c0ea7 | 1880 | |
4a127b3b | 1881 | if (forkin != forkout && forkout >= 0) |
68c45bf0 | 1882 | emacs_close (forkout); |
d0d6b7c5 | 1883 | |
4d7e6e51 | 1884 | pset_tty_name (XPROCESS (process), lisp_pty_name); |
2c4df143 | 1885 | |
49cdacda | 1886 | #ifndef WINDOWSNT |
2c4df143 YM |
1887 | /* Wait for child_setup to complete in case that vfork is |
1888 | actually defined as fork. The descriptor wait_child_setup[1] | |
1889 | of a pipe is closed at the child side either by close-on-exec | |
21e54a94 | 1890 | on successful execve or the _exit call in child_setup. */ |
2c4df143 YM |
1891 | { |
1892 | char dummy; | |
1893 | ||
1894 | emacs_close (wait_child_setup[1]); | |
1895 | emacs_read (wait_child_setup[0], &dummy, 1); | |
1896 | emacs_close (wait_child_setup[0]); | |
1897 | } | |
1898 | #endif | |
4a127b3b | 1899 | } |
d0d6b7c5 | 1900 | } |
d0d6b7c5 | 1901 | |
850d0752 | 1902 | void |
d3da34e0 | 1903 | create_pty (Lisp_Object process) |
850d0752 NR |
1904 | { |
1905 | int inchannel, outchannel; | |
0bce5d9e | 1906 | bool pty_flag = 0; |
850d0752 NR |
1907 | |
1908 | inchannel = outchannel = -1; | |
1909 | ||
1910 | #ifdef HAVE_PTYS | |
1911 | if (!NILP (Vprocess_connection_type)) | |
1912 | outchannel = inchannel = allocate_pty (); | |
1913 | ||
1914 | if (inchannel >= 0) | |
1915 | { | |
1916 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) | |
1917 | /* On most USG systems it does not work to open the pty's tty here, | |
1918 | then close it and reopen it in the child. */ | |
850d0752 NR |
1919 | /* Don't let this terminal become our controlling terminal |
1920 | (in case we don't have one). */ | |
afd4052b | 1921 | int forkout = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); |
aba7731a | 1922 | if (forkout < 0) |
850d0752 | 1923 | report_file_error ("Opening pty", Qnil); |
019d2c4c | 1924 | #if defined (DONT_REOPEN_PTY) |
850d0752 NR |
1925 | /* In the case that vfork is defined as fork, the parent process |
1926 | (Emacs) may send some data before the child process completes | |
1927 | tty options setup. So we setup tty before forking. */ | |
1928 | child_setup_tty (forkout); | |
019d2c4c | 1929 | #endif /* DONT_REOPEN_PTY */ |
850d0752 NR |
1930 | #endif /* not USG, or USG_SUBTTY_WORKS */ |
1931 | pty_flag = 1; | |
1932 | } | |
1933 | #endif /* HAVE_PTYS */ | |
1934 | ||
850d0752 NR |
1935 | fcntl (inchannel, F_SETFL, O_NONBLOCK); |
1936 | fcntl (outchannel, F_SETFL, O_NONBLOCK); | |
850d0752 NR |
1937 | |
1938 | /* Record this as an active process, with its channels. | |
1939 | As a result, child_setup will close Emacs's side of the pipes. */ | |
1940 | chan_process[inchannel] = process; | |
1941 | XPROCESS (process)->infd = inchannel; | |
1942 | XPROCESS (process)->outfd = outchannel; | |
1943 | ||
1944 | /* Previously we recorded the tty descriptor used in the subprocess. | |
1945 | It was only used for getting the foreground tty process, so now | |
1946 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
1947 | more portable (see USG_SUBTTY_WORKS above). */ | |
1948 | ||
1949 | XPROCESS (process)->pty_flag = pty_flag; | |
6a09a33b | 1950 | pset_status (XPROCESS (process), Qrun); |
850d0752 NR |
1951 | setup_process_coding_systems (process); |
1952 | ||
1953 | FD_SET (inchannel, &input_wait_mask); | |
1954 | FD_SET (inchannel, &non_keyboard_wait_mask); | |
1955 | if (inchannel > max_process_desc) | |
1956 | max_process_desc = inchannel; | |
1957 | ||
1958 | XPROCESS (process)->pid = -2; | |
8b9fc636 EZ |
1959 | #ifdef HAVE_PTYS |
1960 | if (pty_flag) | |
6a09a33b | 1961 | pset_tty_name (XPROCESS (process), build_string (pty_name)); |
8b9fc636 EZ |
1962 | else |
1963 | #endif | |
6a09a33b | 1964 | pset_tty_name (XPROCESS (process), Qnil); |
850d0752 NR |
1965 | } |
1966 | ||
e690ca94 | 1967 | \f |
e690ca94 KS |
1968 | /* Convert an internal struct sockaddr to a lisp object (vector or string). |
1969 | The address family of sa is not included in the result. */ | |
1970 | ||
1971 | static Lisp_Object | |
d3da34e0 | 1972 | conv_sockaddr_to_lisp (struct sockaddr *sa, int len) |
e690ca94 KS |
1973 | { |
1974 | Lisp_Object address; | |
1975 | int i; | |
1976 | unsigned char *cp; | |
1977 | register struct Lisp_Vector *p; | |
1978 | ||
63136da6 AS |
1979 | /* Workaround for a bug in getsockname on BSD: Names bound to |
1980 | sockets in the UNIX domain are inaccessible; getsockname returns | |
1981 | a zero length name. */ | |
89887d67 | 1982 | if (len < offsetof (struct sockaddr, sa_family) + sizeof (sa->sa_family)) |
fff4e459 | 1983 | return empty_unibyte_string; |
63136da6 | 1984 | |
e690ca94 KS |
1985 | switch (sa->sa_family) |
1986 | { | |
1987 | case AF_INET: | |
1988 | { | |
1989 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
1990 | len = sizeof (sin->sin_addr) + 1; | |
1991 | address = Fmake_vector (make_number (len), Qnil); | |
1992 | p = XVECTOR (address); | |
1993 | p->contents[--len] = make_number (ntohs (sin->sin_port)); | |
63136da6 | 1994 | cp = (unsigned char *) &sin->sin_addr; |
e690ca94 KS |
1995 | break; |
1996 | } | |
e1652a86 KS |
1997 | #ifdef AF_INET6 |
1998 | case AF_INET6: | |
1999 | { | |
2000 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
63136da6 | 2001 | uint16_t *ip6 = (uint16_t *) &sin6->sin6_addr; |
e1652a86 KS |
2002 | len = sizeof (sin6->sin6_addr)/2 + 1; |
2003 | address = Fmake_vector (make_number (len), Qnil); | |
2004 | p = XVECTOR (address); | |
2005 | p->contents[--len] = make_number (ntohs (sin6->sin6_port)); | |
2006 | for (i = 0; i < len; i++) | |
2007 | p->contents[i] = make_number (ntohs (ip6[i])); | |
2008 | return address; | |
2009 | } | |
2010 | #endif | |
e690ca94 KS |
2011 | #ifdef HAVE_LOCAL_SOCKETS |
2012 | case AF_LOCAL: | |
2013 | { | |
fb23673a EZ |
2014 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
2015 | for (i = 0; i < sizeof (sockun->sun_path); i++) | |
2016 | if (sockun->sun_path[i] == 0) | |
e690ca94 | 2017 | break; |
fb23673a | 2018 | return make_unibyte_string (sockun->sun_path, i); |
e690ca94 KS |
2019 | } |
2020 | #endif | |
2021 | default: | |
89887d67 | 2022 | len -= offsetof (struct sockaddr, sa_family) + sizeof (sa->sa_family); |
e690ca94 KS |
2023 | address = Fcons (make_number (sa->sa_family), |
2024 | Fmake_vector (make_number (len), Qnil)); | |
2025 | p = XVECTOR (XCDR (address)); | |
63136da6 | 2026 | cp = (unsigned char *) &sa->sa_family + sizeof (sa->sa_family); |
e690ca94 KS |
2027 | break; |
2028 | } | |
2029 | ||
2030 | i = 0; | |
2031 | while (i < len) | |
2032 | p->contents[i++] = make_number (*cp++); | |
2033 | ||
2034 | return address; | |
2035 | } | |
2036 | ||
2037 | ||
2038 | /* Get family and required size for sockaddr structure to hold ADDRESS. */ | |
2039 | ||
2040 | static int | |
d3da34e0 | 2041 | get_lisp_to_sockaddr_size (Lisp_Object address, int *familyp) |
e690ca94 KS |
2042 | { |
2043 | register struct Lisp_Vector *p; | |
2044 | ||
2045 | if (VECTORP (address)) | |
2046 | { | |
2047 | p = XVECTOR (address); | |
eab3844f | 2048 | if (p->header.size == 5) |
e690ca94 KS |
2049 | { |
2050 | *familyp = AF_INET; | |
2051 | return sizeof (struct sockaddr_in); | |
2052 | } | |
e1652a86 | 2053 | #ifdef AF_INET6 |
eab3844f | 2054 | else if (p->header.size == 9) |
e1652a86 KS |
2055 | { |
2056 | *familyp = AF_INET6; | |
2057 | return sizeof (struct sockaddr_in6); | |
2058 | } | |
2059 | #endif | |
e690ca94 KS |
2060 | } |
2061 | #ifdef HAVE_LOCAL_SOCKETS | |
2062 | else if (STRINGP (address)) | |
2063 | { | |
2064 | *familyp = AF_LOCAL; | |
2065 | return sizeof (struct sockaddr_un); | |
2066 | } | |
2067 | #endif | |
d311d28c PE |
2068 | else if (CONSP (address) && TYPE_RANGED_INTEGERP (int, XCAR (address)) |
2069 | && VECTORP (XCDR (address))) | |
e690ca94 KS |
2070 | { |
2071 | struct sockaddr *sa; | |
2072 | *familyp = XINT (XCAR (address)); | |
2073 | p = XVECTOR (XCDR (address)); | |
eab3844f | 2074 | return p->header.size + sizeof (sa->sa_family); |
e690ca94 KS |
2075 | } |
2076 | return 0; | |
2077 | } | |
2078 | ||
2079 | /* Convert an address object (vector or string) to an internal sockaddr. | |
9d1a8e5d RS |
2080 | |
2081 | The address format has been basically validated by | |
2082 | get_lisp_to_sockaddr_size, but this does not mean FAMILY is valid; | |
2083 | it could have come from user data. So if FAMILY is not valid, | |
2084 | we return after zeroing *SA. */ | |
e690ca94 KS |
2085 | |
2086 | static void | |
d3da34e0 | 2087 | conv_lisp_to_sockaddr (int family, Lisp_Object address, struct sockaddr *sa, int len) |
e690ca94 KS |
2088 | { |
2089 | register struct Lisp_Vector *p; | |
34967d0f | 2090 | register unsigned char *cp = NULL; |
e690ca94 | 2091 | register int i; |
d311d28c | 2092 | EMACS_INT hostport; |
e690ca94 | 2093 | |
72af86bd | 2094 | memset (sa, 0, len); |
e690ca94 KS |
2095 | |
2096 | if (VECTORP (address)) | |
2097 | { | |
2098 | p = XVECTOR (address); | |
2099 | if (family == AF_INET) | |
2100 | { | |
2101 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
2102 | len = sizeof (sin->sin_addr) + 1; | |
d311d28c PE |
2103 | hostport = XINT (p->contents[--len]); |
2104 | sin->sin_port = htons (hostport); | |
e690ca94 | 2105 | cp = (unsigned char *)&sin->sin_addr; |
9d1a8e5d | 2106 | sa->sa_family = family; |
e690ca94 | 2107 | } |
e1652a86 KS |
2108 | #ifdef AF_INET6 |
2109 | else if (family == AF_INET6) | |
2110 | { | |
2111 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
2112 | uint16_t *ip6 = (uint16_t *)&sin6->sin6_addr; | |
2113 | len = sizeof (sin6->sin6_addr) + 1; | |
d311d28c PE |
2114 | hostport = XINT (p->contents[--len]); |
2115 | sin6->sin6_port = htons (hostport); | |
e1652a86 KS |
2116 | for (i = 0; i < len; i++) |
2117 | if (INTEGERP (p->contents[i])) | |
2118 | { | |
2119 | int j = XFASTINT (p->contents[i]) & 0xffff; | |
2120 | ip6[i] = ntohs (j); | |
2121 | } | |
9d1a8e5d | 2122 | sa->sa_family = family; |
0eb7675e | 2123 | return; |
e1652a86 KS |
2124 | } |
2125 | #endif | |
0eb7675e AS |
2126 | else |
2127 | return; | |
e690ca94 KS |
2128 | } |
2129 | else if (STRINGP (address)) | |
2130 | { | |
2131 | #ifdef HAVE_LOCAL_SOCKETS | |
2132 | if (family == AF_LOCAL) | |
2133 | { | |
fb23673a | 2134 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
d5db4077 | 2135 | cp = SDATA (address); |
fb23673a EZ |
2136 | for (i = 0; i < sizeof (sockun->sun_path) && *cp; i++) |
2137 | sockun->sun_path[i] = *cp++; | |
9d1a8e5d | 2138 | sa->sa_family = family; |
e690ca94 KS |
2139 | } |
2140 | #endif | |
2141 | return; | |
2142 | } | |
2143 | else | |
2144 | { | |
2145 | p = XVECTOR (XCDR (address)); | |
2146 | cp = (unsigned char *)sa + sizeof (sa->sa_family); | |
2147 | } | |
2148 | ||
2149 | for (i = 0; i < len; i++) | |
2150 | if (INTEGERP (p->contents[i])) | |
2151 | *cp++ = XFASTINT (p->contents[i]) & 0xff; | |
2152 | } | |
2153 | ||
2154 | #ifdef DATAGRAM_SOCKETS | |
2155 | DEFUN ("process-datagram-address", Fprocess_datagram_address, Sprocess_datagram_address, | |
2156 | 1, 1, 0, | |
2157 | doc: /* Get the current datagram address associated with PROCESS. */) | |
5842a27b | 2158 | (Lisp_Object process) |
e690ca94 KS |
2159 | { |
2160 | int channel; | |
2161 | ||
2162 | CHECK_PROCESS (process); | |
2163 | ||
2164 | if (!DATAGRAM_CONN_P (process)) | |
2165 | return Qnil; | |
2166 | ||
60f0fb11 | 2167 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2168 | return conv_sockaddr_to_lisp (datagram_address[channel].sa, |
2169 | datagram_address[channel].len); | |
2170 | } | |
2171 | ||
2172 | DEFUN ("set-process-datagram-address", Fset_process_datagram_address, Sset_process_datagram_address, | |
2173 | 2, 2, 0, | |
2174 | doc: /* Set the datagram address for PROCESS to ADDRESS. | |
2175 | Returns nil upon error setting address, ADDRESS otherwise. */) | |
5842a27b | 2176 | (Lisp_Object process, Lisp_Object address) |
e690ca94 KS |
2177 | { |
2178 | int channel; | |
2179 | int family, len; | |
2180 | ||
2181 | CHECK_PROCESS (process); | |
2182 | ||
2183 | if (!DATAGRAM_CONN_P (process)) | |
2184 | return Qnil; | |
2185 | ||
60f0fb11 | 2186 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2187 | |
2188 | len = get_lisp_to_sockaddr_size (address, &family); | |
a9ebfa0b | 2189 | if (len == 0 || datagram_address[channel].len != len) |
e690ca94 KS |
2190 | return Qnil; |
2191 | conv_lisp_to_sockaddr (family, address, datagram_address[channel].sa, len); | |
2192 | return address; | |
2193 | } | |
2194 | #endif | |
2195 | \f | |
2196 | ||
5e2327cf | 2197 | static const struct socket_options { |
e690ca94 | 2198 | /* The name of this option. Should be lowercase version of option |
177c0ea7 | 2199 | name without SO_ prefix. */ |
fce70521 | 2200 | const char *name; |
e690ca94 KS |
2201 | /* Option level SOL_... */ |
2202 | int optlevel; | |
2203 | /* Option number SO_... */ | |
2204 | int optnum; | |
6b61353c KH |
2205 | enum { SOPT_UNKNOWN, SOPT_BOOL, SOPT_INT, SOPT_IFNAME, SOPT_LINGER } opttype; |
2206 | enum { OPIX_NONE=0, OPIX_MISC=1, OPIX_REUSEADDR=2 } optbit; | |
e690ca94 KS |
2207 | } socket_options[] = |
2208 | { | |
2209 | #ifdef SO_BINDTODEVICE | |
6b61353c | 2210 | { ":bindtodevice", SOL_SOCKET, SO_BINDTODEVICE, SOPT_IFNAME, OPIX_MISC }, |
e690ca94 KS |
2211 | #endif |
2212 | #ifdef SO_BROADCAST | |
6b61353c | 2213 | { ":broadcast", SOL_SOCKET, SO_BROADCAST, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2214 | #endif |
2215 | #ifdef SO_DONTROUTE | |
6b61353c | 2216 | { ":dontroute", SOL_SOCKET, SO_DONTROUTE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2217 | #endif |
2218 | #ifdef SO_KEEPALIVE | |
6b61353c | 2219 | { ":keepalive", SOL_SOCKET, SO_KEEPALIVE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2220 | #endif |
2221 | #ifdef SO_LINGER | |
6b61353c | 2222 | { ":linger", SOL_SOCKET, SO_LINGER, SOPT_LINGER, OPIX_MISC }, |
e690ca94 KS |
2223 | #endif |
2224 | #ifdef SO_OOBINLINE | |
6b61353c | 2225 | { ":oobinline", SOL_SOCKET, SO_OOBINLINE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2226 | #endif |
2227 | #ifdef SO_PRIORITY | |
6b61353c | 2228 | { ":priority", SOL_SOCKET, SO_PRIORITY, SOPT_INT, OPIX_MISC }, |
e690ca94 KS |
2229 | #endif |
2230 | #ifdef SO_REUSEADDR | |
6b61353c | 2231 | { ":reuseaddr", SOL_SOCKET, SO_REUSEADDR, SOPT_BOOL, OPIX_REUSEADDR }, |
e690ca94 | 2232 | #endif |
6b61353c | 2233 | { 0, 0, 0, SOPT_UNKNOWN, OPIX_NONE } |
e690ca94 KS |
2234 | }; |
2235 | ||
6b61353c | 2236 | /* Set option OPT to value VAL on socket S. |
e690ca94 | 2237 | |
6b61353c KH |
2238 | Returns (1<<socket_options[OPT].optbit) if option is known, 0 otherwise. |
2239 | Signals an error if setting a known option fails. | |
2240 | */ | |
e690ca94 KS |
2241 | |
2242 | static int | |
d3da34e0 | 2243 | set_socket_option (int s, Lisp_Object opt, Lisp_Object val) |
e690ca94 | 2244 | { |
6b61353c | 2245 | char *name; |
5e2327cf | 2246 | const struct socket_options *sopt; |
6b61353c | 2247 | int ret = 0; |
e690ca94 | 2248 | |
6b61353c | 2249 | CHECK_SYMBOL (opt); |
e690ca94 | 2250 | |
51b59d79 | 2251 | name = SSDATA (SYMBOL_NAME (opt)); |
6b61353c KH |
2252 | for (sopt = socket_options; sopt->name; sopt++) |
2253 | if (strcmp (name, sopt->name) == 0) | |
2254 | break; | |
e690ca94 | 2255 | |
6b61353c KH |
2256 | switch (sopt->opttype) |
2257 | { | |
2258 | case SOPT_BOOL: | |
2259 | { | |
2260 | int optval; | |
2261 | optval = NILP (val) ? 0 : 1; | |
2262 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2263 | &optval, sizeof (optval)); | |
2264 | break; | |
2265 | } | |
e690ca94 | 2266 | |
6b61353c KH |
2267 | case SOPT_INT: |
2268 | { | |
2269 | int optval; | |
d311d28c | 2270 | if (TYPE_RANGED_INTEGERP (int, val)) |
6b61353c KH |
2271 | optval = XINT (val); |
2272 | else | |
2273 | error ("Bad option value for %s", name); | |
2274 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2275 | &optval, sizeof (optval)); | |
2276 | break; | |
2277 | } | |
e690ca94 | 2278 | |
6b61353c KH |
2279 | #ifdef SO_BINDTODEVICE |
2280 | case SOPT_IFNAME: | |
2281 | { | |
2282 | char devname[IFNAMSIZ+1]; | |
e690ca94 | 2283 | |
6b61353c KH |
2284 | /* This is broken, at least in the Linux 2.4 kernel. |
2285 | To unbind, the arg must be a zero integer, not the empty string. | |
2286 | This should work on all systems. KFS. 2003-09-23. */ | |
72af86bd | 2287 | memset (devname, 0, sizeof devname); |
6b61353c | 2288 | if (STRINGP (val)) |
e690ca94 | 2289 | { |
51b59d79 | 2290 | char *arg = SSDATA (val); |
6b61353c | 2291 | int len = min (strlen (arg), IFNAMSIZ); |
72af86bd | 2292 | memcpy (devname, arg, len); |
e690ca94 | 2293 | } |
6b61353c KH |
2294 | else if (!NILP (val)) |
2295 | error ("Bad option value for %s", name); | |
2296 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2297 | devname, IFNAMSIZ); | |
2298 | break; | |
2299 | } | |
2300 | #endif | |
e690ca94 | 2301 | |
177c0ea7 | 2302 | #ifdef SO_LINGER |
6b61353c KH |
2303 | case SOPT_LINGER: |
2304 | { | |
2305 | struct linger linger; | |
e690ca94 | 2306 | |
6b61353c KH |
2307 | linger.l_onoff = 1; |
2308 | linger.l_linger = 0; | |
d311d28c | 2309 | if (TYPE_RANGED_INTEGERP (int, val)) |
6b61353c KH |
2310 | linger.l_linger = XINT (val); |
2311 | else | |
2312 | linger.l_onoff = NILP (val) ? 0 : 1; | |
2313 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2314 | &linger, sizeof (linger)); | |
2315 | break; | |
2316 | } | |
e690ca94 | 2317 | #endif |
6b61353c KH |
2318 | |
2319 | default: | |
2320 | return 0; | |
e690ca94 | 2321 | } |
6b61353c KH |
2322 | |
2323 | if (ret < 0) | |
6c6f1994 | 2324 | report_file_error ("Cannot set network option", list2 (opt, val)); |
6b61353c | 2325 | return (1 << sopt->optbit); |
e690ca94 KS |
2326 | } |
2327 | ||
6b61353c KH |
2328 | |
2329 | DEFUN ("set-network-process-option", | |
2330 | Fset_network_process_option, Sset_network_process_option, | |
2331 | 3, 4, 0, | |
2332 | doc: /* For network process PROCESS set option OPTION to value VALUE. | |
2333 | See `make-network-process' for a list of options and values. | |
2334 | If optional fourth arg NO-ERROR is non-nil, don't signal an error if | |
2335 | OPTION is not a supported option, return nil instead; otherwise return t. */) | |
5842a27b | 2336 | (Lisp_Object process, Lisp_Object option, Lisp_Object value, Lisp_Object no_error) |
e690ca94 | 2337 | { |
6b61353c KH |
2338 | int s; |
2339 | struct Lisp_Process *p; | |
e690ca94 | 2340 | |
e690ca94 | 2341 | CHECK_PROCESS (process); |
6b61353c KH |
2342 | p = XPROCESS (process); |
2343 | if (!NETCONN1_P (p)) | |
2344 | error ("Process is not a network process"); | |
2345 | ||
60f0fb11 | 2346 | s = p->infd; |
6b61353c KH |
2347 | if (s < 0) |
2348 | error ("Process is not running"); | |
2349 | ||
2350 | if (set_socket_option (s, option, value)) | |
e690ca94 | 2351 | { |
6a09a33b | 2352 | pset_childp (p, Fplist_put (p->childp, option, value)); |
6b61353c | 2353 | return Qt; |
e690ca94 | 2354 | } |
6b61353c KH |
2355 | |
2356 | if (NILP (no_error)) | |
2357 | error ("Unknown or unsupported option"); | |
2358 | ||
2359 | return Qnil; | |
e690ca94 | 2360 | } |
6b61353c | 2361 | |
e690ca94 | 2362 | \f |
d888760c GM |
2363 | DEFUN ("serial-process-configure", |
2364 | Fserial_process_configure, | |
2365 | Sserial_process_configure, | |
2366 | 0, MANY, 0, | |
2367 | doc: /* Configure speed, bytesize, etc. of a serial process. | |
2368 | ||
2369 | Arguments are specified as keyword/argument pairs. Attributes that | |
2370 | are not given are re-initialized from the process's current | |
2371 | configuration (available via the function `process-contact') or set to | |
2372 | reasonable default values. The following arguments are defined: | |
2373 | ||
2374 | :process PROCESS | |
2375 | :name NAME | |
2376 | :buffer BUFFER | |
2377 | :port PORT | |
2378 | -- Any of these arguments can be given to identify the process that is | |
2379 | to be configured. If none of these arguments is given, the current | |
2380 | buffer's process is used. | |
2381 | ||
2382 | :speed SPEED -- SPEED is the speed of the serial port in bits per | |
2383 | second, also called baud rate. Any value can be given for SPEED, but | |
2384 | most serial ports work only at a few defined values between 1200 and | |
2385 | 115200, with 9600 being the most common value. If SPEED is nil, the | |
2386 | serial port is not configured any further, i.e., all other arguments | |
2387 | are ignored. This may be useful for special serial ports such as | |
2388 | Bluetooth-to-serial converters which can only be configured through AT | |
2389 | commands. A value of nil for SPEED can be used only when passed | |
2390 | through `make-serial-process' or `serial-term'. | |
2391 | ||
2392 | :bytesize BYTESIZE -- BYTESIZE is the number of bits per byte, which | |
2393 | can be 7 or 8. If BYTESIZE is not given or nil, a value of 8 is used. | |
2394 | ||
2395 | :parity PARITY -- PARITY can be nil (don't use parity), the symbol | |
2396 | `odd' (use odd parity), or the symbol `even' (use even parity). If | |
2397 | PARITY is not given, no parity is used. | |
2398 | ||
2399 | :stopbits STOPBITS -- STOPBITS is the number of stopbits used to | |
2400 | terminate a byte transmission. STOPBITS can be 1 or 2. If STOPBITS | |
2401 | is not given or nil, 1 stopbit is used. | |
2402 | ||
2403 | :flowcontrol FLOWCONTROL -- FLOWCONTROL determines the type of | |
2404 | flowcontrol to be used, which is either nil (don't use flowcontrol), | |
2405 | the symbol `hw' (use RTS/CTS hardware flowcontrol), or the symbol `sw' | |
2406 | \(use XON/XOFF software flowcontrol). If FLOWCONTROL is not given, no | |
2407 | flowcontrol is used. | |
2408 | ||
2409 | `serial-process-configure' is called by `make-serial-process' for the | |
2410 | initial configuration of the serial port. | |
2411 | ||
2412 | Examples: | |
2413 | ||
2414 | \(serial-process-configure :process "/dev/ttyS0" :speed 1200) | |
2415 | ||
2416 | \(serial-process-configure | |
2417 | :buffer "COM1" :stopbits 1 :parity 'odd :flowcontrol 'hw) | |
2418 | ||
2419 | \(serial-process-configure :port "\\\\.\\COM13" :bytesize 7) | |
2420 | ||
2421 | usage: (serial-process-configure &rest ARGS) */) | |
f66c7cf8 | 2422 | (ptrdiff_t nargs, Lisp_Object *args) |
d888760c GM |
2423 | { |
2424 | struct Lisp_Process *p; | |
2425 | Lisp_Object contact = Qnil; | |
2426 | Lisp_Object proc = Qnil; | |
2427 | struct gcpro gcpro1; | |
2428 | ||
2429 | contact = Flist (nargs, args); | |
2430 | GCPRO1 (contact); | |
2431 | ||
2432 | proc = Fplist_get (contact, QCprocess); | |
2433 | if (NILP (proc)) | |
2434 | proc = Fplist_get (contact, QCname); | |
2435 | if (NILP (proc)) | |
2436 | proc = Fplist_get (contact, QCbuffer); | |
2437 | if (NILP (proc)) | |
2438 | proc = Fplist_get (contact, QCport); | |
2439 | proc = get_process (proc); | |
2440 | p = XPROCESS (proc); | |
4d2b044c | 2441 | if (!EQ (p->type, Qserial)) |
d888760c GM |
2442 | error ("Not a serial process"); |
2443 | ||
4d2b044c | 2444 | if (NILP (Fplist_get (p->childp, QCspeed))) |
d888760c GM |
2445 | { |
2446 | UNGCPRO; | |
2447 | return Qnil; | |
2448 | } | |
2449 | ||
2450 | serial_configure (p, contact); | |
2451 | ||
2452 | UNGCPRO; | |
2453 | return Qnil; | |
2454 | } | |
d888760c | 2455 | |
d888760c GM |
2456 | DEFUN ("make-serial-process", Fmake_serial_process, Smake_serial_process, |
2457 | 0, MANY, 0, | |
2458 | doc: /* Create and return a serial port process. | |
2459 | ||
2460 | In Emacs, serial port connections are represented by process objects, | |
2461 | so input and output work as for subprocesses, and `delete-process' | |
2462 | closes a serial port connection. However, a serial process has no | |
2463 | process id, it cannot be signaled, and the status codes are different | |
2464 | from normal processes. | |
2465 | ||
2466 | `make-serial-process' creates a process and a buffer, on which you | |
2467 | probably want to use `process-send-string'. Try \\[serial-term] for | |
2468 | an interactive terminal. See below for examples. | |
2469 | ||
2470 | Arguments are specified as keyword/argument pairs. The following | |
2471 | arguments are defined: | |
2472 | ||
2473 | :port PORT -- (mandatory) PORT is the path or name of the serial port. | |
2474 | For example, this could be "/dev/ttyS0" on Unix. On Windows, this | |
2475 | could be "COM1", or "\\\\.\\COM10" for ports higher than COM9 (double | |
2476 | the backslashes in strings). | |
2477 | ||
2478 | :speed SPEED -- (mandatory) is handled by `serial-process-configure', | |
4373fd43 | 2479 | which this function calls. |
d888760c GM |
2480 | |
2481 | :name NAME -- NAME is the name of the process. If NAME is not given, | |
2482 | the value of PORT is used. | |
2483 | ||
2484 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
2485 | with the process. Process output goes at the end of that buffer, | |
2486 | unless you specify an output stream or filter function to handle the | |
2487 | output. If BUFFER is not given, the value of NAME is used. | |
2488 | ||
2489 | :coding CODING -- If CODING is a symbol, it specifies the coding | |
2490 | system used for both reading and writing for this process. If CODING | |
2491 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
2492 | ENCODING is used for writing. | |
2493 | ||
2494 | :noquery BOOL -- When exiting Emacs, query the user if BOOL is nil and | |
2495 | the process is running. If BOOL is not given, query before exiting. | |
2496 | ||
2497 | :stop BOOL -- Start process in the `stopped' state if BOOL is non-nil. | |
2498 | In the stopped state, a serial process does not accept incoming data, | |
2499 | but you can send outgoing data. The stopped state is cleared by | |
2500 | `continue-process' and set by `stop-process'. | |
2501 | ||
2502 | :filter FILTER -- Install FILTER as the process filter. | |
2503 | ||
2504 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. | |
2505 | ||
2506 | :plist PLIST -- Install PLIST as the initial plist of the process. | |
2507 | ||
d888760c GM |
2508 | :bytesize |
2509 | :parity | |
2510 | :stopbits | |
2511 | :flowcontrol | |
4373fd43 GM |
2512 | -- This function calls `serial-process-configure' to handle these |
2513 | arguments. | |
d888760c GM |
2514 | |
2515 | The original argument list, possibly modified by later configuration, | |
2516 | is available via the function `process-contact'. | |
2517 | ||
2518 | Examples: | |
2519 | ||
2520 | \(make-serial-process :port "/dev/ttyS0" :speed 9600) | |
2521 | ||
2522 | \(make-serial-process :port "COM1" :speed 115200 :stopbits 2) | |
2523 | ||
2524 | \(make-serial-process :port "\\\\.\\COM13" :speed 1200 :bytesize 7 :parity 'odd) | |
2525 | ||
2526 | \(make-serial-process :port "/dev/tty.BlueConsole-SPP-1" :speed nil) | |
2527 | ||
2528 | usage: (make-serial-process &rest ARGS) */) | |
f66c7cf8 | 2529 | (ptrdiff_t nargs, Lisp_Object *args) |
d888760c GM |
2530 | { |
2531 | int fd = -1; | |
2532 | Lisp_Object proc, contact, port; | |
2533 | struct Lisp_Process *p; | |
2534 | struct gcpro gcpro1; | |
2535 | Lisp_Object name, buffer; | |
2536 | Lisp_Object tem, val; | |
9349e5f7 | 2537 | ptrdiff_t specpdl_count; |
d888760c GM |
2538 | |
2539 | if (nargs == 0) | |
2540 | return Qnil; | |
2541 | ||
2542 | contact = Flist (nargs, args); | |
2543 | GCPRO1 (contact); | |
2544 | ||
2545 | port = Fplist_get (contact, QCport); | |
2546 | if (NILP (port)) | |
2547 | error ("No port specified"); | |
2548 | CHECK_STRING (port); | |
2549 | ||
2550 | if (NILP (Fplist_member (contact, QCspeed))) | |
2551 | error (":speed not specified"); | |
2552 | if (!NILP (Fplist_get (contact, QCspeed))) | |
2553 | CHECK_NUMBER (Fplist_get (contact, QCspeed)); | |
2554 | ||
2555 | name = Fplist_get (contact, QCname); | |
2556 | if (NILP (name)) | |
2557 | name = port; | |
2558 | CHECK_STRING (name); | |
2559 | proc = make_process (name); | |
2560 | specpdl_count = SPECPDL_INDEX (); | |
27e498e6 | 2561 | record_unwind_protect (remove_process, proc); |
d888760c GM |
2562 | p = XPROCESS (proc); |
2563 | ||
4e604a5d | 2564 | fd = serial_open (port); |
d888760c GM |
2565 | p->infd = fd; |
2566 | p->outfd = fd; | |
2567 | if (fd > max_process_desc) | |
2568 | max_process_desc = fd; | |
2569 | chan_process[fd] = proc; | |
2570 | ||
2571 | buffer = Fplist_get (contact, QCbuffer); | |
2572 | if (NILP (buffer)) | |
2573 | buffer = name; | |
2574 | buffer = Fget_buffer_create (buffer); | |
6a09a33b PE |
2575 | pset_buffer (p, buffer); |
2576 | ||
2577 | pset_childp (p, contact); | |
2578 | pset_plist (p, Fcopy_sequence (Fplist_get (contact, QCplist))); | |
2579 | pset_type (p, Qserial); | |
2580 | pset_sentinel (p, Fplist_get (contact, QCsentinel)); | |
2581 | pset_filter (p, Fplist_get (contact, QCfilter)); | |
2582 | pset_log (p, Qnil); | |
d888760c GM |
2583 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) |
2584 | p->kill_without_query = 1; | |
2585 | if (tem = Fplist_get (contact, QCstop), !NILP (tem)) | |
6a09a33b | 2586 | pset_command (p, Qt); |
d888760c GM |
2587 | p->pty_flag = 0; |
2588 | ||
4d2b044c | 2589 | if (!EQ (p->command, Qt)) |
d888760c GM |
2590 | { |
2591 | FD_SET (fd, &input_wait_mask); | |
2592 | FD_SET (fd, &non_keyboard_wait_mask); | |
2593 | } | |
2594 | ||
2595 | if (BUFFERP (buffer)) | |
2596 | { | |
4d2b044c | 2597 | set_marker_both (p->mark, buffer, |
d888760c GM |
2598 | BUF_ZV (XBUFFER (buffer)), |
2599 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
2600 | } | |
2601 | ||
2602 | tem = Fplist_member (contact, QCcoding); | |
2603 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
2604 | tem = Qnil; | |
2605 | ||
2606 | val = Qnil; | |
2607 | if (!NILP (tem)) | |
2608 | { | |
2609 | val = XCAR (XCDR (tem)); | |
2610 | if (CONSP (val)) | |
2611 | val = XCAR (val); | |
2612 | } | |
2613 | else if (!NILP (Vcoding_system_for_read)) | |
2614 | val = Vcoding_system_for_read; | |
4b4deea2 TT |
2615 | else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters))) |
2616 | || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))) | |
d888760c | 2617 | val = Qnil; |
6a09a33b | 2618 | pset_decode_coding_system (p, val); |
d888760c GM |
2619 | |
2620 | val = Qnil; | |
2621 | if (!NILP (tem)) | |
2622 | { | |
2623 | val = XCAR (XCDR (tem)); | |
2624 | if (CONSP (val)) | |
2625 | val = XCDR (val); | |
2626 | } | |
2627 | else if (!NILP (Vcoding_system_for_write)) | |
2628 | val = Vcoding_system_for_write; | |
4b4deea2 TT |
2629 | else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters))) |
2630 | || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))) | |
d888760c | 2631 | val = Qnil; |
6a09a33b | 2632 | pset_encode_coding_system (p, val); |
d888760c GM |
2633 | |
2634 | setup_process_coding_systems (proc); | |
6a09a33b | 2635 | pset_decoding_buf (p, empty_unibyte_string); |
d888760c | 2636 | p->decoding_carryover = 0; |
6a09a33b | 2637 | pset_encoding_buf (p, empty_unibyte_string); |
d888760c GM |
2638 | p->inherit_coding_system_flag |
2639 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); | |
2640 | ||
ed3751c8 | 2641 | Fserial_process_configure (nargs, args); |
d888760c GM |
2642 | |
2643 | specpdl_ptr = specpdl + specpdl_count; | |
2644 | ||
2645 | UNGCPRO; | |
2646 | return proc; | |
2647 | } | |
d888760c | 2648 | |
e690ca94 KS |
2649 | /* Create a network stream/datagram client/server process. Treated |
2650 | exactly like a normal process when reading and writing. Primary | |
d0d6b7c5 JB |
2651 | differences are in status display and process deletion. A network |
2652 | connection has no PID; you cannot signal it. All you can do is | |
e690ca94 KS |
2653 | stop/continue it and deactivate/close it via delete-process */ |
2654 | ||
177c0ea7 JB |
2655 | DEFUN ("make-network-process", Fmake_network_process, Smake_network_process, |
2656 | 0, MANY, 0, | |
e690ca94 KS |
2657 | doc: /* Create and return a network server or client process. |
2658 | ||
fa9d4315 | 2659 | In Emacs, network connections are represented by process objects, so |
e690ca94 KS |
2660 | input and output work as for subprocesses and `delete-process' closes |
2661 | a network connection. However, a network process has no process id, | |
d22426e1 | 2662 | it cannot be signaled, and the status codes are different from normal |
e690ca94 KS |
2663 | processes. |
2664 | ||
2665 | Arguments are specified as keyword/argument pairs. The following | |
2666 | arguments are defined: | |
2667 | ||
2668 | :name NAME -- NAME is name for process. It is modified if necessary | |
2669 | to make it unique. | |
2670 | ||
2671 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
2672 | with the process. Process output goes at end of that buffer, unless | |
2673 | you specify an output stream or filter function to handle the output. | |
2674 | BUFFER may be also nil, meaning that this process is not associated | |
2675 | with any buffer. | |
2676 | ||
2677 | :host HOST -- HOST is name of the host to connect to, or its IP | |
2678 | address. The symbol `local' specifies the local host. If specified | |
2679 | for a server process, it must be a valid name or address for the local | |
2680 | host, and only clients connecting to that address will be accepted. | |
2681 | ||
2682 | :service SERVICE -- SERVICE is name of the service desired, or an | |
2683 | integer specifying a port number to connect to. If SERVICE is t, | |
eba25e7c GM |
2684 | a random port number is selected for the server. (If Emacs was |
2685 | compiled with getaddrinfo, a port number can also be specified as a | |
2686 | string, e.g. "80", as well as an integer. This is not portable.) | |
e690ca94 | 2687 | |
9057ff80 | 2688 | :type TYPE -- TYPE is the type of connection. The default (nil) is a |
f00c449b SM |
2689 | stream type connection, `datagram' creates a datagram type connection, |
2690 | `seqpacket' creates a reliable datagram connection. | |
9057ff80 | 2691 | |
e690ca94 | 2692 | :family FAMILY -- FAMILY is the address (and protocol) family for the |
e1652a86 KS |
2693 | service specified by HOST and SERVICE. The default (nil) is to use |
2694 | whatever address family (IPv4 or IPv6) that is defined for the host | |
2695 | and port number specified by HOST and SERVICE. Other address families | |
2696 | supported are: | |
e690ca94 | 2697 | local -- for a local (i.e. UNIX) address specified by SERVICE. |
e1652a86 KS |
2698 | ipv4 -- use IPv4 address family only. |
2699 | ipv6 -- use IPv6 address family only. | |
e690ca94 KS |
2700 | |
2701 | :local ADDRESS -- ADDRESS is the local address used for the connection. | |
2702 | This parameter is ignored when opening a client process. When specified | |
2703 | for a server process, the FAMILY, HOST and SERVICE args are ignored. | |
2704 | ||
2705 | :remote ADDRESS -- ADDRESS is the remote partner's address for the | |
2706 | connection. This parameter is ignored when opening a stream server | |
2707 | process. For a datagram server process, it specifies the initial | |
2708 | setting of the remote datagram address. When specified for a client | |
2709 | process, the FAMILY, HOST, and SERVICE args are ignored. | |
2710 | ||
2711 | The format of ADDRESS depends on the address family: | |
2712 | - An IPv4 address is represented as an vector of integers [A B C D P] | |
2713 | corresponding to numeric IP address A.B.C.D and port number P. | |
2714 | - A local address is represented as a string with the address in the | |
2715 | local address space. | |
2716 | - An "unsupported family" address is represented by a cons (F . AV) | |
2717 | where F is the family number and AV is a vector containing the socket | |
2718 | address data with one element per address data byte. Do not rely on | |
2719 | this format in portable code, as it may depend on implementation | |
2720 | defined constants, data sizes, and data structure alignment. | |
2721 | ||
6b61353c KH |
2722 | :coding CODING -- If CODING is a symbol, it specifies the coding |
2723 | system used for both reading and writing for this process. If CODING | |
2724 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
2725 | ENCODING is used for writing. | |
e690ca94 KS |
2726 | |
2727 | :nowait BOOL -- If BOOL is non-nil for a stream type client process, | |
2728 | return without waiting for the connection to complete; instead, the | |
2729 | sentinel function will be called with second arg matching "open" (if | |
2730 | successful) or "failed" when the connect completes. Default is to use | |
2731 | a blocking connect (i.e. wait) for stream type connections. | |
2732 | ||
2733 | :noquery BOOL -- Query the user unless BOOL is non-nil, and process is | |
f3d9532b | 2734 | running when Emacs is exited. |
e690ca94 KS |
2735 | |
2736 | :stop BOOL -- Start process in the `stopped' state if BOOL non-nil. | |
2737 | In the stopped state, a server process does not accept new | |
2738 | connections, and a client process does not handle incoming traffic. | |
2739 | The stopped state is cleared by `continue-process' and set by | |
2740 | `stop-process'. | |
2741 | ||
2742 | :filter FILTER -- Install FILTER as the process filter. | |
2743 | ||
7392e23c KS |
2744 | :filter-multibyte BOOL -- If BOOL is non-nil, strings given to the |
2745 | process filter are multibyte, otherwise they are unibyte. | |
e0f24100 | 2746 | If this keyword is not specified, the strings are multibyte if |
016a35df | 2747 | the default value of `enable-multibyte-characters' is non-nil. |
03f04413 | 2748 | |
e690ca94 KS |
2749 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. |
2750 | ||
2751 | :log LOG -- Install LOG as the server process log function. This | |
991234f0 | 2752 | function is called when the server accepts a network connection from a |
e690ca94 KS |
2753 | client. The arguments are SERVER, CLIENT, and MESSAGE, where SERVER |
2754 | is the server process, CLIENT is the new process for the connection, | |
2755 | and MESSAGE is a string. | |
2756 | ||
faa7db08 | 2757 | :plist PLIST -- Install PLIST as the new process' initial plist. |
177c0ea7 | 2758 | |
6b61353c | 2759 | :server QLEN -- if QLEN is non-nil, create a server process for the |
e690ca94 | 2760 | specified FAMILY, SERVICE, and connection type (stream or datagram). |
6b61353c KH |
2761 | If QLEN is an integer, it is used as the max. length of the server's |
2762 | pending connection queue (also known as the backlog); the default | |
2763 | queue length is 5. Default is to create a client process. | |
2764 | ||
2765 | The following network options can be specified for this connection: | |
2766 | ||
2767 | :broadcast BOOL -- Allow send and receive of datagram broadcasts. | |
2768 | :dontroute BOOL -- Only send to directly connected hosts. | |
2769 | :keepalive BOOL -- Send keep-alive messages on network stream. | |
2770 | :linger BOOL or TIMEOUT -- Send queued messages before closing. | |
2771 | :oobinline BOOL -- Place out-of-band data in receive data stream. | |
2772 | :priority INT -- Set protocol defined priority for sent packets. | |
2773 | :reuseaddr BOOL -- Allow reusing a recently used local address | |
2774 | (this is allowed by default for a server process). | |
2775 | :bindtodevice NAME -- bind to interface NAME. Using this may require | |
2776 | special privileges on some systems. | |
2777 | ||
2778 | Consult the relevant system programmer's manual pages for more | |
2779 | information on using these options. | |
2780 | ||
2781 | ||
2782 | A server process will listen for and accept connections from clients. | |
2783 | When a client connection is accepted, a new network process is created | |
2784 | for the connection with the following parameters: | |
e690ca94 | 2785 | |
e690ca94 KS |
2786 | - The client's process name is constructed by concatenating the server |
2787 | process' NAME and a client identification string. | |
2788 | - If the FILTER argument is non-nil, the client process will not get a | |
2789 | separate process buffer; otherwise, the client's process buffer is a newly | |
2790 | created buffer named after the server process' BUFFER name or process | |
177c0ea7 | 2791 | NAME concatenated with the client identification string. |
e690ca94 KS |
2792 | - The connection type and the process filter and sentinel parameters are |
2793 | inherited from the server process' TYPE, FILTER and SENTINEL. | |
2794 | - The client process' contact info is set according to the client's | |
2795 | addressing information (typically an IP address and a port number). | |
faa7db08 | 2796 | - The client process' plist is initialized from the server's plist. |
e690ca94 KS |
2797 | |
2798 | Notice that the FILTER and SENTINEL args are never used directly by | |
2799 | the server process. Also, the BUFFER argument is not used directly by | |
9e9a5792 KS |
2800 | the server process, but via the optional :log function, accepted (and |
2801 | failed) connections may be logged in the server process' buffer. | |
e690ca94 | 2802 | |
365aee82 KS |
2803 | The original argument list, modified with the actual connection |
2804 | information, is available via the `process-contact' function. | |
365aee82 | 2805 | |
fa9d4315 | 2806 | usage: (make-network-process &rest ARGS) */) |
f66c7cf8 | 2807 | (ptrdiff_t nargs, Lisp_Object *args) |
d0d6b7c5 JB |
2808 | { |
2809 | Lisp_Object proc; | |
e690ca94 KS |
2810 | Lisp_Object contact; |
2811 | struct Lisp_Process *p; | |
70dbdb36 | 2812 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 2813 | struct addrinfo ai, *res, *lres; |
e1652a86 | 2814 | struct addrinfo hints; |
8ea90aa3 DN |
2815 | const char *portstring; |
2816 | char portbuf[128]; | |
70dbdb36 | 2817 | #else /* HAVE_GETADDRINFO */ |
dd2a17ab KS |
2818 | struct _emacs_addrinfo |
2819 | { | |
2820 | int ai_family; | |
2821 | int ai_socktype; | |
2822 | int ai_protocol; | |
2823 | int ai_addrlen; | |
2824 | struct sockaddr *ai_addr; | |
2825 | struct _emacs_addrinfo *ai_next; | |
2826 | } ai, *res, *lres; | |
418b48fd | 2827 | #endif /* HAVE_GETADDRINFO */ |
e690ca94 KS |
2828 | struct sockaddr_in address_in; |
2829 | #ifdef HAVE_LOCAL_SOCKETS | |
2830 | struct sockaddr_un address_un; | |
2831 | #endif | |
2832 | int port; | |
dd2a17ab KS |
2833 | int ret = 0; |
2834 | int xerrno = 0; | |
418b48fd | 2835 | int s = -1, outch, inch; |
e690ca94 | 2836 | struct gcpro gcpro1; |
d311d28c PE |
2837 | ptrdiff_t count = SPECPDL_INDEX (); |
2838 | ptrdiff_t count1; | |
e690ca94 KS |
2839 | Lisp_Object QCaddress; /* one of QClocal or QCremote */ |
2840 | Lisp_Object tem; | |
2841 | Lisp_Object name, buffer, host, service, address; | |
2842 | Lisp_Object filter, sentinel; | |
0bce5d9e PE |
2843 | bool is_non_blocking_client = 0; |
2844 | bool is_server = 0; | |
2845 | int backlog = 5; | |
9057ff80 | 2846 | int socktype; |
e690ca94 KS |
2847 | int family = -1; |
2848 | ||
2849 | if (nargs == 0) | |
2850 | return Qnil; | |
dd2a17ab | 2851 | |
e690ca94 KS |
2852 | /* Save arguments for process-contact and clone-process. */ |
2853 | contact = Flist (nargs, args); | |
2854 | GCPRO1 (contact); | |
2855 | ||
bff3ed0a RS |
2856 | #ifdef WINDOWSNT |
2857 | /* Ensure socket support is loaded if available. */ | |
2858 | init_winsock (TRUE); | |
2859 | #endif | |
2860 | ||
9057ff80 KS |
2861 | /* :type TYPE (nil: stream, datagram */ |
2862 | tem = Fplist_get (contact, QCtype); | |
2863 | if (NILP (tem)) | |
2864 | socktype = SOCK_STREAM; | |
2865 | #ifdef DATAGRAM_SOCKETS | |
2866 | else if (EQ (tem, Qdatagram)) | |
2867 | socktype = SOCK_DGRAM; | |
f00c449b SM |
2868 | #endif |
2869 | #ifdef HAVE_SEQPACKET | |
2870 | else if (EQ (tem, Qseqpacket)) | |
2871 | socktype = SOCK_SEQPACKET; | |
e690ca94 | 2872 | #endif |
9057ff80 KS |
2873 | else |
2874 | error ("Unsupported connection type"); | |
e690ca94 KS |
2875 | |
2876 | /* :server BOOL */ | |
2877 | tem = Fplist_get (contact, QCserver); | |
2878 | if (!NILP (tem)) | |
2879 | { | |
75728599 JR |
2880 | /* Don't support network sockets when non-blocking mode is |
2881 | not available, since a blocked Emacs is not useful. */ | |
e690ca94 | 2882 | is_server = 1; |
d311d28c | 2883 | if (TYPE_RANGED_INTEGERP (int, tem)) |
6b61353c | 2884 | backlog = XINT (tem); |
e690ca94 KS |
2885 | } |
2886 | ||
2887 | /* Make QCaddress an alias for :local (server) or :remote (client). */ | |
2888 | QCaddress = is_server ? QClocal : QCremote; | |
2889 | ||
d7e344cd | 2890 | /* :nowait BOOL */ |
84b31826 | 2891 | if (!is_server && socktype != SOCK_DGRAM |
e690ca94 KS |
2892 | && (tem = Fplist_get (contact, QCnowait), !NILP (tem))) |
2893 | { | |
2894 | #ifndef NON_BLOCKING_CONNECT | |
2895 | error ("Non-blocking connect not supported"); | |
2896 | #else | |
2897 | is_non_blocking_client = 1; | |
2898 | #endif | |
2899 | } | |
2900 | ||
2901 | name = Fplist_get (contact, QCname); | |
2902 | buffer = Fplist_get (contact, QCbuffer); | |
2903 | filter = Fplist_get (contact, QCfilter); | |
2904 | sentinel = Fplist_get (contact, QCsentinel); | |
2905 | ||
b7826503 | 2906 | CHECK_STRING (name); |
e690ca94 | 2907 | |
e690ca94 KS |
2908 | /* Initialize addrinfo structure in case we don't use getaddrinfo. */ |
2909 | ai.ai_socktype = socktype; | |
2910 | ai.ai_protocol = 0; | |
2911 | ai.ai_next = NULL; | |
2912 | res = &ai; | |
a319f7c1 | 2913 | |
e690ca94 KS |
2914 | /* :local ADDRESS or :remote ADDRESS */ |
2915 | address = Fplist_get (contact, QCaddress); | |
2916 | if (!NILP (address)) | |
a319f7c1 | 2917 | { |
e690ca94 KS |
2918 | host = service = Qnil; |
2919 | ||
2920 | if (!(ai.ai_addrlen = get_lisp_to_sockaddr_size (address, &family))) | |
2921 | error ("Malformed :address"); | |
2922 | ai.ai_family = family; | |
2923 | ai.ai_addr = alloca (ai.ai_addrlen); | |
2924 | conv_lisp_to_sockaddr (family, address, ai.ai_addr, ai.ai_addrlen); | |
2925 | goto open_socket; | |
a319f7c1 | 2926 | } |
e690ca94 KS |
2927 | |
2928 | /* :family FAMILY -- nil (for Inet), local, or integer. */ | |
2929 | tem = Fplist_get (contact, QCfamily); | |
e1652a86 | 2930 | if (NILP (tem)) |
a319f7c1 | 2931 | { |
5e617bc2 | 2932 | #if defined (HAVE_GETADDRINFO) && defined (AF_INET6) |
e1652a86 KS |
2933 | family = AF_UNSPEC; |
2934 | #else | |
2935 | family = AF_INET; | |
e690ca94 | 2936 | #endif |
a319f7c1 | 2937 | } |
e1652a86 KS |
2938 | #ifdef HAVE_LOCAL_SOCKETS |
2939 | else if (EQ (tem, Qlocal)) | |
2940 | family = AF_LOCAL; | |
2941 | #endif | |
2942 | #ifdef AF_INET6 | |
2943 | else if (EQ (tem, Qipv6)) | |
2944 | family = AF_INET6; | |
2945 | #endif | |
2946 | else if (EQ (tem, Qipv4)) | |
2947 | family = AF_INET; | |
d311d28c | 2948 | else if (TYPE_RANGED_INTEGERP (int, tem)) |
e1652a86 KS |
2949 | family = XINT (tem); |
2950 | else | |
e690ca94 | 2951 | error ("Unknown address family"); |
e1652a86 | 2952 | |
e690ca94 KS |
2953 | ai.ai_family = family; |
2954 | ||
2955 | /* :service SERVICE -- string, integer (port number), or t (random port). */ | |
2956 | service = Fplist_get (contact, QCservice); | |
2957 | ||
66a9f7f4 SM |
2958 | /* :host HOST -- hostname, ip address, or 'local for localhost. */ |
2959 | host = Fplist_get (contact, QChost); | |
2960 | if (!NILP (host)) | |
2961 | { | |
2962 | if (EQ (host, Qlocal)) | |
ba3033ee JB |
2963 | /* Depending on setup, "localhost" may map to different IPv4 and/or |
2964 | IPv6 addresses, so it's better to be explicit. (Bug#6781) */ | |
2965 | host = build_string ("127.0.0.1"); | |
66a9f7f4 SM |
2966 | CHECK_STRING (host); |
2967 | } | |
2968 | ||
e690ca94 KS |
2969 | #ifdef HAVE_LOCAL_SOCKETS |
2970 | if (family == AF_LOCAL) | |
d0d6b7c5 | 2971 | { |
66a9f7f4 SM |
2972 | if (!NILP (host)) |
2973 | { | |
2974 | message (":family local ignores the :host \"%s\" property", | |
2975 | SDATA (host)); | |
2976 | contact = Fplist_put (contact, QChost, Qnil); | |
2977 | host = Qnil; | |
2978 | } | |
b7826503 | 2979 | CHECK_STRING (service); |
72af86bd | 2980 | memset (&address_un, 0, sizeof address_un); |
e690ca94 | 2981 | address_un.sun_family = AF_LOCAL; |
e99a530f PE |
2982 | if (sizeof address_un.sun_path <= SBYTES (service)) |
2983 | error ("Service name too long"); | |
2984 | strcpy (address_un.sun_path, SSDATA (service)); | |
e690ca94 KS |
2985 | ai.ai_addr = (struct sockaddr *) &address_un; |
2986 | ai.ai_addrlen = sizeof address_un; | |
2987 | goto open_socket; | |
d0d6b7c5 | 2988 | } |
e690ca94 | 2989 | #endif |
a319f7c1 | 2990 | |
798b64bb KH |
2991 | /* Slow down polling to every ten seconds. |
2992 | Some kernels have a bug which causes retrying connect to fail | |
2993 | after a connect. Polling can interfere with gethostbyname too. */ | |
2994 | #ifdef POLL_FOR_INPUT | |
84b31826 | 2995 | if (socktype != SOCK_DGRAM) |
e690ca94 | 2996 | { |
27e498e6 | 2997 | record_unwind_protect_void (run_all_atimers); |
e690ca94 KS |
2998 | bind_polling_period (10); |
2999 | } | |
798b64bb KH |
3000 | #endif |
3001 | ||
a319f7c1 | 3002 | #ifdef HAVE_GETADDRINFO |
e690ca94 KS |
3003 | /* If we have a host, use getaddrinfo to resolve both host and service. |
3004 | Otherwise, use getservbyname to lookup the service. */ | |
3005 | if (!NILP (host)) | |
3006 | { | |
3007 | ||
3008 | /* SERVICE can either be a string or int. | |
3009 | Convert to a C string for later use by getaddrinfo. */ | |
3010 | if (EQ (service, Qt)) | |
3011 | portstring = "0"; | |
3012 | else if (INTEGERP (service)) | |
3013 | { | |
c2982e87 | 3014 | sprintf (portbuf, "%"pI"d", XINT (service)); |
e690ca94 KS |
3015 | portstring = portbuf; |
3016 | } | |
3017 | else | |
3018 | { | |
3019 | CHECK_STRING (service); | |
42a5b22f | 3020 | portstring = SSDATA (service); |
e690ca94 KS |
3021 | } |
3022 | ||
3023 | immediate_quit = 1; | |
3024 | QUIT; | |
3025 | memset (&hints, 0, sizeof (hints)); | |
3026 | hints.ai_flags = 0; | |
e1652a86 | 3027 | hints.ai_family = family; |
e690ca94 KS |
3028 | hints.ai_socktype = socktype; |
3029 | hints.ai_protocol = 0; | |
08116b48 CY |
3030 | |
3031 | #ifdef HAVE_RES_INIT | |
3032 | res_init (); | |
3033 | #endif | |
3034 | ||
42a5b22f | 3035 | ret = getaddrinfo (SSDATA (host), portstring, &hints, &res); |
e690ca94 | 3036 | if (ret) |
f6270f62 | 3037 | #ifdef HAVE_GAI_STRERROR |
42a5b22f | 3038 | error ("%s/%s %s", SSDATA (host), portstring, gai_strerror (ret)); |
f6270f62 | 3039 | #else |
42a5b22f | 3040 | error ("%s/%s getaddrinfo error %d", SSDATA (host), portstring, ret); |
f6270f62 | 3041 | #endif |
e690ca94 | 3042 | immediate_quit = 0; |
a319f7c1 | 3043 | |
e690ca94 KS |
3044 | goto open_socket; |
3045 | } | |
3046 | #endif /* HAVE_GETADDRINFO */ | |
a319f7c1 | 3047 | |
e690ca94 KS |
3048 | /* We end up here if getaddrinfo is not defined, or in case no hostname |
3049 | has been specified (e.g. for a local server process). */ | |
3050 | ||
3051 | if (EQ (service, Qt)) | |
3052 | port = 0; | |
3053 | else if (INTEGERP (service)) | |
3054 | port = htons ((unsigned short) XINT (service)); | |
3055 | else | |
616da37c | 3056 | { |
e690ca94 KS |
3057 | struct servent *svc_info; |
3058 | CHECK_STRING (service); | |
42a5b22f | 3059 | svc_info = getservbyname (SSDATA (service), |
e690ca94 KS |
3060 | (socktype == SOCK_DGRAM ? "udp" : "tcp")); |
3061 | if (svc_info == 0) | |
d5db4077 | 3062 | error ("Unknown service: %s", SDATA (service)); |
e690ca94 KS |
3063 | port = svc_info->s_port; |
3064 | } | |
3065 | ||
72af86bd | 3066 | memset (&address_in, 0, sizeof address_in); |
e690ca94 KS |
3067 | address_in.sin_family = family; |
3068 | address_in.sin_addr.s_addr = INADDR_ANY; | |
3069 | address_in.sin_port = port; | |
3070 | ||
3071 | #ifndef HAVE_GETADDRINFO | |
3072 | if (!NILP (host)) | |
3073 | { | |
3074 | struct hostent *host_info_ptr; | |
3075 | ||
c5e87d10 | 3076 | /* gethostbyname may fail with TRY_AGAIN, but we don't honor that, |
f3d9532b | 3077 | as it may `hang' Emacs for a very long time. */ |
5d6c2aa3 RS |
3078 | immediate_quit = 1; |
3079 | QUIT; | |
08116b48 CY |
3080 | |
3081 | #ifdef HAVE_RES_INIT | |
3082 | res_init (); | |
3083 | #endif | |
3084 | ||
d5db4077 | 3085 | host_info_ptr = gethostbyname (SDATA (host)); |
5d6c2aa3 | 3086 | immediate_quit = 0; |
177c0ea7 | 3087 | |
e690ca94 KS |
3088 | if (host_info_ptr) |
3089 | { | |
72af86bd AS |
3090 | memcpy (&address_in.sin_addr, host_info_ptr->h_addr, |
3091 | host_info_ptr->h_length); | |
e690ca94 KS |
3092 | family = host_info_ptr->h_addrtype; |
3093 | address_in.sin_family = family; | |
3094 | } | |
3095 | else | |
3096 | /* Attempt to interpret host as numeric inet address */ | |
3097 | { | |
4624371d | 3098 | unsigned long numeric_addr; |
51b59d79 | 3099 | numeric_addr = inet_addr (SSDATA (host)); |
4624371d | 3100 | if (numeric_addr == -1) |
d5db4077 | 3101 | error ("Unknown host \"%s\"", SDATA (host)); |
d0d6b7c5 | 3102 | |
72af86bd AS |
3103 | memcpy (&address_in.sin_addr, &numeric_addr, |
3104 | sizeof (address_in.sin_addr)); | |
e690ca94 | 3105 | } |
d0d6b7c5 | 3106 | |
e690ca94 | 3107 | } |
dd2a17ab | 3108 | #endif /* not HAVE_GETADDRINFO */ |
d0d6b7c5 | 3109 | |
e690ca94 KS |
3110 | ai.ai_family = family; |
3111 | ai.ai_addr = (struct sockaddr *) &address_in; | |
3112 | ai.ai_addrlen = sizeof address_in; | |
3113 | ||
3114 | open_socket: | |
3115 | ||
dd2a17ab | 3116 | /* Do this in case we never enter the for-loop below. */ |
aed13378 | 3117 | count1 = SPECPDL_INDEX (); |
dd2a17ab | 3118 | s = -1; |
457a9bee | 3119 | |
dd2a17ab KS |
3120 | for (lres = res; lres; lres = lres->ai_next) |
3121 | { | |
f66c7cf8 | 3122 | ptrdiff_t optn; |
c5101a77 | 3123 | int optbits; |
6b61353c | 3124 | |
4dc343ee | 3125 | #ifdef WINDOWSNT |
649dbf36 | 3126 | retry_connect: |
4dc343ee | 3127 | #endif |
649dbf36 | 3128 | |
067428c1 PE |
3129 | s = socket (lres->ai_family, lres->ai_socktype | SOCK_CLOEXEC, |
3130 | lres->ai_protocol); | |
dd2a17ab KS |
3131 | if (s < 0) |
3132 | { | |
3133 | xerrno = errno; | |
3134 | continue; | |
3135 | } | |
0f2ee0c1 | 3136 | |
e690ca94 KS |
3137 | #ifdef DATAGRAM_SOCKETS |
3138 | if (!is_server && socktype == SOCK_DGRAM) | |
3139 | break; | |
3140 | #endif /* DATAGRAM_SOCKETS */ | |
3141 | ||
dd2a17ab | 3142 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3143 | if (is_non_blocking_client) |
dd2a17ab | 3144 | { |
dd2a17ab | 3145 | ret = fcntl (s, F_SETFL, O_NONBLOCK); |
dd2a17ab KS |
3146 | if (ret < 0) |
3147 | { | |
3148 | xerrno = errno; | |
3149 | emacs_close (s); | |
3150 | s = -1; | |
3151 | continue; | |
3152 | } | |
3153 | } | |
3154 | #endif | |
177c0ea7 | 3155 | |
dd2a17ab | 3156 | /* Make us close S if quit. */ |
27e498e6 | 3157 | record_unwind_protect_int (close_file_unwind, s); |
dd2a17ab | 3158 | |
6b61353c KH |
3159 | /* Parse network options in the arg list. |
3160 | We simply ignore anything which isn't a known option (including other keywords). | |
63136da6 | 3161 | An error is signaled if setting a known option fails. */ |
6b61353c KH |
3162 | for (optn = optbits = 0; optn < nargs-1; optn += 2) |
3163 | optbits |= set_socket_option (s, args[optn], args[optn+1]); | |
3164 | ||
e690ca94 KS |
3165 | if (is_server) |
3166 | { | |
3167 | /* Configure as a server socket. */ | |
6b61353c KH |
3168 | |
3169 | /* SO_REUSEADDR = 1 is default for server sockets; must specify | |
3170 | explicit :reuseaddr key to override this. */ | |
e690ca94 KS |
3171 | #ifdef HAVE_LOCAL_SOCKETS |
3172 | if (family != AF_LOCAL) | |
3173 | #endif | |
6b61353c KH |
3174 | if (!(optbits & (1 << OPIX_REUSEADDR))) |
3175 | { | |
3176 | int optval = 1; | |
3177 | if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval)) | |
3178 | report_file_error ("Cannot set reuse option on server socket", Qnil); | |
3179 | } | |
177c0ea7 | 3180 | |
e690ca94 KS |
3181 | if (bind (s, lres->ai_addr, lres->ai_addrlen)) |
3182 | report_file_error ("Cannot bind server socket", Qnil); | |
3183 | ||
3184 | #ifdef HAVE_GETSOCKNAME | |
3185 | if (EQ (service, Qt)) | |
3186 | { | |
3187 | struct sockaddr_in sa1; | |
401bf9b4 | 3188 | socklen_t len1 = sizeof (sa1); |
e690ca94 KS |
3189 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) |
3190 | { | |
3191 | ((struct sockaddr_in *)(lres->ai_addr))->sin_port = sa1.sin_port; | |
21bd170d | 3192 | service = make_number (ntohs (sa1.sin_port)); |
e690ca94 KS |
3193 | contact = Fplist_put (contact, QCservice, service); |
3194 | } | |
3195 | } | |
3196 | #endif | |
3197 | ||
84b31826 | 3198 | if (socktype != SOCK_DGRAM && listen (s, backlog)) |
e690ca94 KS |
3199 | report_file_error ("Cannot listen on server socket", Qnil); |
3200 | ||
3201 | break; | |
3202 | } | |
3203 | ||
dd2a17ab KS |
3204 | immediate_quit = 1; |
3205 | QUIT; | |
3206 | ||
dd2a17ab KS |
3207 | ret = connect (s, lres->ai_addr, lres->ai_addrlen); |
3208 | xerrno = errno; | |
3209 | ||
dd2a17ab KS |
3210 | if (ret == 0 || xerrno == EISCONN) |
3211 | { | |
dd2a17ab KS |
3212 | /* The unwind-protect will be discarded afterwards. |
3213 | Likewise for immediate_quit. */ | |
3214 | break; | |
3215 | } | |
3216 | ||
3217 | #ifdef NON_BLOCKING_CONNECT | |
3218 | #ifdef EINPROGRESS | |
e690ca94 | 3219 | if (is_non_blocking_client && xerrno == EINPROGRESS) |
dd2a17ab KS |
3220 | break; |
3221 | #else | |
3222 | #ifdef EWOULDBLOCK | |
e690ca94 | 3223 | if (is_non_blocking_client && xerrno == EWOULDBLOCK) |
dd2a17ab KS |
3224 | break; |
3225 | #endif | |
3226 | #endif | |
3227 | #endif | |
649dbf36 CY |
3228 | |
3229 | #ifndef WINDOWSNT | |
cd591dbc HE |
3230 | if (xerrno == EINTR) |
3231 | { | |
3232 | /* Unlike most other syscalls connect() cannot be called | |
3233 | again. (That would return EALREADY.) The proper way to | |
d35af63c | 3234 | wait for completion is pselect(). */ |
401bf9b4 PE |
3235 | int sc; |
3236 | socklen_t len; | |
cd591dbc HE |
3237 | SELECT_TYPE fdset; |
3238 | retry_select: | |
3239 | FD_ZERO (&fdset); | |
3240 | FD_SET (s, &fdset); | |
3241 | QUIT; | |
d35af63c | 3242 | sc = pselect (s + 1, NULL, &fdset, NULL, NULL, NULL); |
cd591dbc HE |
3243 | if (sc == -1) |
3244 | { | |
649dbf36 | 3245 | if (errno == EINTR) |
cd591dbc | 3246 | goto retry_select; |
649dbf36 | 3247 | else |
4e604a5d | 3248 | report_file_error ("Failed select", Qnil); |
cd591dbc HE |
3249 | } |
3250 | eassert (sc > 0); | |
649dbf36 CY |
3251 | |
3252 | len = sizeof xerrno; | |
3253 | eassert (FD_ISSET (s, &fdset)); | |
a773ed9a | 3254 | if (getsockopt (s, SOL_SOCKET, SO_ERROR, &xerrno, &len) < 0) |
4e604a5d | 3255 | report_file_error ("Failed getsockopt", Qnil); |
649dbf36 | 3256 | if (xerrno) |
4e604a5d | 3257 | report_file_errno ("Failed connect", Qnil, xerrno); |
a773ed9a | 3258 | break; |
cd591dbc | 3259 | } |
649dbf36 | 3260 | #endif /* !WINDOWSNT */ |
e333e864 | 3261 | |
0f2ee0c1 RS |
3262 | immediate_quit = 0; |
3263 | ||
dd2a17ab | 3264 | /* Discard the unwind protect closing S. */ |
5684cd6e | 3265 | specpdl_ptr = specpdl + count1; |
68c45bf0 | 3266 | emacs_close (s); |
dd2a17ab | 3267 | s = -1; |
649dbf36 CY |
3268 | |
3269 | #ifdef WINDOWSNT | |
3270 | if (xerrno == EINTR) | |
3271 | goto retry_connect; | |
3272 | #endif | |
dd2a17ab | 3273 | } |
457a9bee | 3274 | |
e690ca94 KS |
3275 | if (s >= 0) |
3276 | { | |
3277 | #ifdef DATAGRAM_SOCKETS | |
3278 | if (socktype == SOCK_DGRAM) | |
3279 | { | |
3280 | if (datagram_address[s].sa) | |
1088b922 | 3281 | emacs_abort (); |
23f86fce | 3282 | datagram_address[s].sa = xmalloc (lres->ai_addrlen); |
e690ca94 KS |
3283 | datagram_address[s].len = lres->ai_addrlen; |
3284 | if (is_server) | |
3285 | { | |
3286 | Lisp_Object remote; | |
72af86bd | 3287 | memset (datagram_address[s].sa, 0, lres->ai_addrlen); |
e690ca94 KS |
3288 | if (remote = Fplist_get (contact, QCremote), !NILP (remote)) |
3289 | { | |
3290 | int rfamily, rlen; | |
3291 | rlen = get_lisp_to_sockaddr_size (remote, &rfamily); | |
a9ebfa0b PE |
3292 | if (rlen != 0 && rfamily == lres->ai_family |
3293 | && rlen == lres->ai_addrlen) | |
e690ca94 KS |
3294 | conv_lisp_to_sockaddr (rfamily, remote, |
3295 | datagram_address[s].sa, rlen); | |
3296 | } | |
3297 | } | |
3298 | else | |
72af86bd | 3299 | memcpy (datagram_address[s].sa, lres->ai_addr, lres->ai_addrlen); |
e690ca94 KS |
3300 | } |
3301 | #endif | |
177c0ea7 | 3302 | contact = Fplist_put (contact, QCaddress, |
e690ca94 | 3303 | conv_sockaddr_to_lisp (lres->ai_addr, lres->ai_addrlen)); |
2185db04 KS |
3304 | #ifdef HAVE_GETSOCKNAME |
3305 | if (!is_server) | |
3306 | { | |
3307 | struct sockaddr_in sa1; | |
401bf9b4 | 3308 | socklen_t len1 = sizeof (sa1); |
2185db04 KS |
3309 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) |
3310 | contact = Fplist_put (contact, QClocal, | |
d3da34e0 | 3311 | conv_sockaddr_to_lisp ((struct sockaddr *)&sa1, len1)); |
2185db04 KS |
3312 | } |
3313 | #endif | |
e690ca94 KS |
3314 | } |
3315 | ||
54b3b62f YM |
3316 | immediate_quit = 0; |
3317 | ||
dd2a17ab | 3318 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 3319 | if (res != &ai) |
54b3b62f | 3320 | { |
4d7e6e51 | 3321 | block_input (); |
54b3b62f | 3322 | freeaddrinfo (res); |
4d7e6e51 | 3323 | unblock_input (); |
54b3b62f | 3324 | } |
dd2a17ab KS |
3325 | #endif |
3326 | ||
e690ca94 KS |
3327 | /* Discard the unwind protect for closing S, if any. */ |
3328 | specpdl_ptr = specpdl + count1; | |
3329 | ||
3330 | /* Unwind bind_polling_period and request_sigio. */ | |
3331 | unbind_to (count, Qnil); | |
3332 | ||
dd2a17ab KS |
3333 | if (s < 0) |
3334 | { | |
dd2a17ab KS |
3335 | /* If non-blocking got this far - and failed - assume non-blocking is |
3336 | not supported after all. This is probably a wrong assumption, but | |
e690ca94 KS |
3337 | the normal blocking calls to open-network-stream handles this error |
3338 | better. */ | |
3339 | if (is_non_blocking_client) | |
dd2a17ab | 3340 | return Qnil; |
dd2a17ab | 3341 | |
a773ed9a PE |
3342 | report_file_errno ((is_server |
3343 | ? "make server process failed" | |
3344 | : "make client process failed"), | |
3345 | contact, xerrno); | |
d0d6b7c5 | 3346 | } |
44ade2e9 | 3347 | |
d0d6b7c5 | 3348 | inch = s; |
59f23005 | 3349 | outch = s; |
d0d6b7c5 JB |
3350 | |
3351 | if (!NILP (buffer)) | |
3352 | buffer = Fget_buffer_create (buffer); | |
3353 | proc = make_process (name); | |
3354 | ||
3355 | chan_process[inch] = proc; | |
3356 | ||
d0d6b7c5 | 3357 | fcntl (inch, F_SETFL, O_NONBLOCK); |
d0d6b7c5 | 3358 | |
e690ca94 KS |
3359 | p = XPROCESS (proc); |
3360 | ||
6a09a33b PE |
3361 | pset_childp (p, contact); |
3362 | pset_plist (p, Fcopy_sequence (Fplist_get (contact, QCplist))); | |
3363 | pset_type (p, Qnetwork); | |
177c0ea7 | 3364 | |
6a09a33b PE |
3365 | pset_buffer (p, buffer); |
3366 | pset_sentinel (p, sentinel); | |
3367 | pset_filter (p, filter); | |
3368 | pset_log (p, Fplist_get (contact, QClog)); | |
e690ca94 | 3369 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) |
60f0fb11 | 3370 | p->kill_without_query = 1; |
e690ca94 | 3371 | if ((tem = Fplist_get (contact, QCstop), !NILP (tem))) |
6a09a33b | 3372 | pset_command (p, Qt); |
6bfd98e7 | 3373 | p->pid = 0; |
60f0fb11 SM |
3374 | p->infd = inch; |
3375 | p->outfd = outch; | |
84b31826 | 3376 | if (is_server && socktype != SOCK_DGRAM) |
6a09a33b | 3377 | pset_status (p, Qlisten); |
dd2a17ab | 3378 | |
f523e0c3 SM |
3379 | /* Make the process marker point into the process buffer (if any). */ |
3380 | if (BUFFERP (buffer)) | |
4d2b044c | 3381 | set_marker_both (p->mark, buffer, |
f523e0c3 SM |
3382 | BUF_ZV (XBUFFER (buffer)), |
3383 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
3384 | ||
dd2a17ab | 3385 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3386 | if (is_non_blocking_client) |
dd2a17ab KS |
3387 | { |
3388 | /* We may get here if connect did succeed immediately. However, | |
3389 | in that case, we still need to signal this like a non-blocking | |
3390 | connection. */ | |
6a09a33b | 3391 | pset_status (p, Qconnect); |
dd2a17ab KS |
3392 | if (!FD_ISSET (inch, &connect_wait_mask)) |
3393 | { | |
3394 | FD_SET (inch, &connect_wait_mask); | |
3fad2ad2 | 3395 | FD_SET (inch, &write_mask); |
dd2a17ab KS |
3396 | num_pending_connects++; |
3397 | } | |
3398 | } | |
3399 | else | |
3400 | #endif | |
e690ca94 KS |
3401 | /* A server may have a client filter setting of Qt, but it must |
3402 | still listen for incoming connects unless it is stopped. */ | |
4d2b044c DA |
3403 | if ((!EQ (p->filter, Qt) && !EQ (p->command, Qt)) |
3404 | || (EQ (p->status, Qlisten) && NILP (p->command))) | |
dd2a17ab KS |
3405 | { |
3406 | FD_SET (inch, &input_wait_mask); | |
3407 | FD_SET (inch, &non_keyboard_wait_mask); | |
3408 | } | |
3409 | ||
7d0e672e RS |
3410 | if (inch > max_process_desc) |
3411 | max_process_desc = inch; | |
d0d6b7c5 | 3412 | |
e690ca94 KS |
3413 | tem = Fplist_member (contact, QCcoding); |
3414 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
3415 | tem = Qnil; /* No error message (too late!). */ | |
3416 | ||
67918941 RS |
3417 | { |
3418 | /* Setup coding systems for communicating with the network stream. */ | |
dbf31225 | 3419 | struct gcpro gcpro1; |
67918941 RS |
3420 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ |
3421 | Lisp_Object coding_systems = Qt; | |
b93aacde | 3422 | Lisp_Object fargs[5], val; |
67918941 | 3423 | |
e690ca94 | 3424 | if (!NILP (tem)) |
6b61353c KH |
3425 | { |
3426 | val = XCAR (XCDR (tem)); | |
3427 | if (CONSP (val)) | |
3428 | val = XCAR (val); | |
3429 | } | |
e690ca94 | 3430 | else if (!NILP (Vcoding_system_for_read)) |
67918941 | 3431 | val = Vcoding_system_for_read; |
4b4deea2 TT |
3432 | else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters))) |
3433 | || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))) | |
67918941 RS |
3434 | /* We dare not decode end-of-line format by setting VAL to |
3435 | Qraw_text, because the existing Emacs Lisp libraries | |
9858f6c3 | 3436 | assume that they receive bare code including a sequence of |
67918941 RS |
3437 | CR LF. */ |
3438 | val = Qnil; | |
3439 | else | |
3440 | { | |
991234f0 KS |
3441 | if (NILP (host) || NILP (service)) |
3442 | coding_systems = Qnil; | |
3443 | else | |
3444 | { | |
b93aacde PE |
3445 | fargs[0] = Qopen_network_stream, fargs[1] = name, |
3446 | fargs[2] = buffer, fargs[3] = host, fargs[4] = service; | |
dbf31225 | 3447 | GCPRO1 (proc); |
b93aacde | 3448 | coding_systems = Ffind_operation_coding_system (5, fargs); |
dbf31225 | 3449 | UNGCPRO; |
991234f0 | 3450 | } |
67918941 | 3451 | if (CONSP (coding_systems)) |
70949dac | 3452 | val = XCAR (coding_systems); |
67918941 | 3453 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3454 | val = XCAR (Vdefault_process_coding_system); |
67918941 RS |
3455 | else |
3456 | val = Qnil; | |
3457 | } | |
6a09a33b | 3458 | pset_decode_coding_system (p, val); |
0fa1789e | 3459 | |
e690ca94 | 3460 | if (!NILP (tem)) |
6b61353c KH |
3461 | { |
3462 | val = XCAR (XCDR (tem)); | |
3463 | if (CONSP (val)) | |
3464 | val = XCDR (val); | |
3465 | } | |
e690ca94 | 3466 | else if (!NILP (Vcoding_system_for_write)) |
67918941 | 3467 | val = Vcoding_system_for_write; |
4b4deea2 | 3468 | else if (NILP (BVAR (current_buffer, enable_multibyte_characters))) |
67918941 RS |
3469 | val = Qnil; |
3470 | else | |
3471 | { | |
3472 | if (EQ (coding_systems, Qt)) | |
3473 | { | |
991234f0 KS |
3474 | if (NILP (host) || NILP (service)) |
3475 | coding_systems = Qnil; | |
3476 | else | |
3477 | { | |
b93aacde PE |
3478 | fargs[0] = Qopen_network_stream, fargs[1] = name, |
3479 | fargs[2] = buffer, fargs[3] = host, fargs[4] = service; | |
dbf31225 | 3480 | GCPRO1 (proc); |
b93aacde | 3481 | coding_systems = Ffind_operation_coding_system (5, fargs); |
dbf31225 | 3482 | UNGCPRO; |
991234f0 | 3483 | } |
67918941 RS |
3484 | } |
3485 | if (CONSP (coding_systems)) | |
70949dac | 3486 | val = XCDR (coding_systems); |
67918941 | 3487 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3488 | val = XCDR (Vdefault_process_coding_system); |
67918941 RS |
3489 | else |
3490 | val = Qnil; | |
3491 | } | |
6a09a33b | 3492 | pset_encode_coding_system (p, val); |
67918941 | 3493 | } |
03f04413 | 3494 | setup_process_coding_systems (proc); |
0fa1789e | 3495 | |
6a09a33b | 3496 | pset_decoding_buf (p, empty_unibyte_string); |
60f0fb11 | 3497 | p->decoding_carryover = 0; |
6a09a33b | 3498 | pset_encoding_buf (p, empty_unibyte_string); |
0fa1789e | 3499 | |
e690ca94 | 3500 | p->inherit_coding_system_flag |
e6fca843 | 3501 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); |
52a1b894 | 3502 | |
d0d6b7c5 JB |
3503 | UNGCPRO; |
3504 | return proc; | |
3505 | } | |
d0d6b7c5 | 3506 | |
6b61353c | 3507 | \f |
5e617bc2 | 3508 | #if defined (HAVE_NET_IF_H) |
6b61353c KH |
3509 | |
3510 | #ifdef SIOCGIFCONF | |
3511 | DEFUN ("network-interface-list", Fnetwork_interface_list, Snetwork_interface_list, 0, 0, 0, | |
3512 | doc: /* Return an alist of all network interfaces and their network address. | |
3513 | Each element is a cons, the car of which is a string containing the | |
3514 | interface name, and the cdr is the network address in internal | |
3515 | format; see the description of ADDRESS in `make-network-process'. */) | |
5842a27b | 3516 | (void) |
6b61353c KH |
3517 | { |
3518 | struct ifconf ifconf; | |
377538cb JD |
3519 | struct ifreq *ifreq; |
3520 | void *buf = NULL; | |
70c60eb2 | 3521 | ptrdiff_t buf_size = 512; |
0bce5d9e | 3522 | int s; |
6b61353c KH |
3523 | Lisp_Object res; |
3524 | ||
067428c1 | 3525 | s = socket (AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0); |
6b61353c KH |
3526 | if (s < 0) |
3527 | return Qnil; | |
3528 | ||
76667214 | 3529 | do |
6b61353c | 3530 | { |
76667214 PE |
3531 | buf = xpalloc (buf, &buf_size, 1, INT_MAX, 1); |
3532 | ifconf.ifc_buf = buf; | |
3533 | ifconf.ifc_len = buf_size; | |
156bffbe AS |
3534 | if (ioctl (s, SIOCGIFCONF, &ifconf)) |
3535 | { | |
bacba3c2 | 3536 | emacs_close (s); |
76667214 | 3537 | xfree (buf); |
156bffbe AS |
3538 | return Qnil; |
3539 | } | |
6b61353c | 3540 | } |
76667214 | 3541 | while (ifconf.ifc_len == buf_size); |
6b61353c | 3542 | |
bacba3c2 | 3543 | emacs_close (s); |
6b61353c KH |
3544 | |
3545 | res = Qnil; | |
156bffbe AS |
3546 | ifreq = ifconf.ifc_req; |
3547 | while ((char *) ifreq < (char *) ifconf.ifc_req + ifconf.ifc_len) | |
6b61353c | 3548 | { |
377538cb JD |
3549 | struct ifreq *ifq = ifreq; |
3550 | #ifdef HAVE_STRUCT_IFREQ_IFR_ADDR_SA_LEN | |
156bffbe AS |
3551 | #define SIZEOF_IFREQ(sif) \ |
3552 | ((sif)->ifr_addr.sa_len < sizeof (struct sockaddr) \ | |
3553 | ? sizeof (*(sif)) : sizeof ((sif)->ifr_name) + (sif)->ifr_addr.sa_len) | |
377538cb JD |
3554 | |
3555 | int len = SIZEOF_IFREQ (ifq); | |
3556 | #else | |
3557 | int len = sizeof (*ifreq); | |
3558 | #endif | |
6b61353c | 3559 | char namebuf[sizeof (ifq->ifr_name) + 1]; |
156bffbe | 3560 | ifreq = (struct ifreq *) ((char *) ifreq + len); |
377538cb | 3561 | |
6b61353c KH |
3562 | if (ifq->ifr_addr.sa_family != AF_INET) |
3563 | continue; | |
377538cb | 3564 | |
72af86bd | 3565 | memcpy (namebuf, ifq->ifr_name, sizeof (ifq->ifr_name)); |
6b61353c KH |
3566 | namebuf[sizeof (ifq->ifr_name)] = 0; |
3567 | res = Fcons (Fcons (build_string (namebuf), | |
3568 | conv_sockaddr_to_lisp (&ifq->ifr_addr, | |
3569 | sizeof (struct sockaddr))), | |
3570 | res); | |
3571 | } | |
3572 | ||
377538cb | 3573 | xfree (buf); |
6b61353c KH |
3574 | return res; |
3575 | } | |
3576 | #endif /* SIOCGIFCONF */ | |
3577 | ||
5e617bc2 | 3578 | #if defined (SIOCGIFADDR) || defined (SIOCGIFHWADDR) || defined (SIOCGIFFLAGS) |
6b61353c KH |
3579 | |
3580 | struct ifflag_def { | |
3581 | int flag_bit; | |
91433552 | 3582 | const char *flag_sym; |
6b61353c KH |
3583 | }; |
3584 | ||
91433552 | 3585 | static const struct ifflag_def ifflag_table[] = { |
6b61353c KH |
3586 | #ifdef IFF_UP |
3587 | { IFF_UP, "up" }, | |
3588 | #endif | |
3589 | #ifdef IFF_BROADCAST | |
3590 | { IFF_BROADCAST, "broadcast" }, | |
3591 | #endif | |
3592 | #ifdef IFF_DEBUG | |
3593 | { IFF_DEBUG, "debug" }, | |
3594 | #endif | |
3595 | #ifdef IFF_LOOPBACK | |
3596 | { IFF_LOOPBACK, "loopback" }, | |
3597 | #endif | |
3598 | #ifdef IFF_POINTOPOINT | |
3599 | { IFF_POINTOPOINT, "pointopoint" }, | |
3600 | #endif | |
3601 | #ifdef IFF_RUNNING | |
3602 | { IFF_RUNNING, "running" }, | |
3603 | #endif | |
3604 | #ifdef IFF_NOARP | |
3605 | { IFF_NOARP, "noarp" }, | |
3606 | #endif | |
3607 | #ifdef IFF_PROMISC | |
3608 | { IFF_PROMISC, "promisc" }, | |
3609 | #endif | |
3610 | #ifdef IFF_NOTRAILERS | |
377538cb JD |
3611 | #ifdef NS_IMPL_COCOA |
3612 | /* Really means smart, notrailers is obsolete */ | |
3613 | { IFF_NOTRAILERS, "smart" }, | |
3614 | #else | |
6b61353c KH |
3615 | { IFF_NOTRAILERS, "notrailers" }, |
3616 | #endif | |
377538cb | 3617 | #endif |
6b61353c KH |
3618 | #ifdef IFF_ALLMULTI |
3619 | { IFF_ALLMULTI, "allmulti" }, | |
3620 | #endif | |
3621 | #ifdef IFF_MASTER | |
3622 | { IFF_MASTER, "master" }, | |
3623 | #endif | |
3624 | #ifdef IFF_SLAVE | |
3625 | { IFF_SLAVE, "slave" }, | |
3626 | #endif | |
3627 | #ifdef IFF_MULTICAST | |
3628 | { IFF_MULTICAST, "multicast" }, | |
3629 | #endif | |
3630 | #ifdef IFF_PORTSEL | |
3631 | { IFF_PORTSEL, "portsel" }, | |
3632 | #endif | |
3633 | #ifdef IFF_AUTOMEDIA | |
3634 | { IFF_AUTOMEDIA, "automedia" }, | |
3635 | #endif | |
3636 | #ifdef IFF_DYNAMIC | |
3637 | { IFF_DYNAMIC, "dynamic" }, | |
e1652a86 | 3638 | #endif |
2026418c YM |
3639 | #ifdef IFF_OACTIVE |
3640 | { IFF_OACTIVE, "oactive" }, /* OpenBSD: transmission in progress */ | |
e1652a86 KS |
3641 | #endif |
3642 | #ifdef IFF_SIMPLEX | |
3643 | { IFF_SIMPLEX, "simplex" }, /* OpenBSD: can't hear own transmissions */ | |
3644 | #endif | |
3645 | #ifdef IFF_LINK0 | |
3646 | { IFF_LINK0, "link0" }, /* OpenBSD: per link layer defined bit */ | |
3647 | #endif | |
3648 | #ifdef IFF_LINK1 | |
3649 | { IFF_LINK1, "link1" }, /* OpenBSD: per link layer defined bit */ | |
3650 | #endif | |
3651 | #ifdef IFF_LINK2 | |
3652 | { IFF_LINK2, "link2" }, /* OpenBSD: per link layer defined bit */ | |
6b61353c KH |
3653 | #endif |
3654 | { 0, 0 } | |
3655 | }; | |
3656 | ||
3657 | DEFUN ("network-interface-info", Fnetwork_interface_info, Snetwork_interface_info, 1, 1, 0, | |
3658 | doc: /* Return information about network interface named IFNAME. | |
3659 | The return value is a list (ADDR BCAST NETMASK HWADDR FLAGS), | |
3660 | where ADDR is the layer 3 address, BCAST is the layer 3 broadcast address, | |
e4920bc9 | 3661 | NETMASK is the layer 3 network mask, HWADDR is the layer 2 address, and |
6b61353c | 3662 | FLAGS is the current flags of the interface. */) |
5842a27b | 3663 | (Lisp_Object ifname) |
6b61353c KH |
3664 | { |
3665 | struct ifreq rq; | |
3666 | Lisp_Object res = Qnil; | |
3667 | Lisp_Object elt; | |
3668 | int s; | |
0bce5d9e | 3669 | bool any = 0; |
0a0d27fb PE |
3670 | #if (! (defined SIOCGIFHWADDR && defined HAVE_STRUCT_IFREQ_IFR_HWADDR) \ |
3671 | && defined HAVE_GETIFADDRS && defined LLADDR) | |
377538cb JD |
3672 | struct ifaddrs *ifap; |
3673 | #endif | |
6b61353c KH |
3674 | |
3675 | CHECK_STRING (ifname); | |
3676 | ||
e99a530f PE |
3677 | if (sizeof rq.ifr_name <= SBYTES (ifname)) |
3678 | error ("interface name too long"); | |
3679 | strcpy (rq.ifr_name, SSDATA (ifname)); | |
6b61353c | 3680 | |
067428c1 | 3681 | s = socket (AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0); |
6b61353c KH |
3682 | if (s < 0) |
3683 | return Qnil; | |
3684 | ||
3685 | elt = Qnil; | |
5e617bc2 | 3686 | #if defined (SIOCGIFFLAGS) && defined (HAVE_STRUCT_IFREQ_IFR_FLAGS) |
6b61353c KH |
3687 | if (ioctl (s, SIOCGIFFLAGS, &rq) == 0) |
3688 | { | |
3689 | int flags = rq.ifr_flags; | |
91433552 | 3690 | const struct ifflag_def *fp; |
6b61353c KH |
3691 | int fnum; |
3692 | ||
377538cb JD |
3693 | /* If flags is smaller than int (i.e. short) it may have the high bit set |
3694 | due to IFF_MULTICAST. In that case, sign extending it into | |
3695 | an int is wrong. */ | |
3696 | if (flags < 0 && sizeof (rq.ifr_flags) < sizeof (flags)) | |
3697 | flags = (unsigned short) rq.ifr_flags; | |
3698 | ||
bc57d757 | 3699 | any = 1; |
82a80058 | 3700 | for (fp = ifflag_table; flags != 0 && fp->flag_sym; fp++) |
6b61353c KH |
3701 | { |
3702 | if (flags & fp->flag_bit) | |
3703 | { | |
3704 | elt = Fcons (intern (fp->flag_sym), elt); | |
3705 | flags -= fp->flag_bit; | |
3706 | } | |
3707 | } | |
fa3c87e1 | 3708 | for (fnum = 0; flags && fnum < 32; flags >>= 1, fnum++) |
6b61353c | 3709 | { |
fa3c87e1 | 3710 | if (flags & 1) |
6b61353c KH |
3711 | { |
3712 | elt = Fcons (make_number (fnum), elt); | |
3713 | } | |
3714 | } | |
3715 | } | |
3716 | #endif | |
3717 | res = Fcons (elt, res); | |
3718 | ||
3719 | elt = Qnil; | |
5e617bc2 | 3720 | #if defined (SIOCGIFHWADDR) && defined (HAVE_STRUCT_IFREQ_IFR_HWADDR) |
6b61353c KH |
3721 | if (ioctl (s, SIOCGIFHWADDR, &rq) == 0) |
3722 | { | |
3723 | Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil); | |
3724 | register struct Lisp_Vector *p = XVECTOR (hwaddr); | |
3725 | int n; | |
3726 | ||
bc57d757 | 3727 | any = 1; |
6b61353c KH |
3728 | for (n = 0; n < 6; n++) |
3729 | p->contents[n] = make_number (((unsigned char *)&rq.ifr_hwaddr.sa_data[0])[n]); | |
3730 | elt = Fcons (make_number (rq.ifr_hwaddr.sa_family), hwaddr); | |
3731 | } | |
5e617bc2 | 3732 | #elif defined (HAVE_GETIFADDRS) && defined (LLADDR) |
377538cb JD |
3733 | if (getifaddrs (&ifap) != -1) |
3734 | { | |
3735 | Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil); | |
3736 | register struct Lisp_Vector *p = XVECTOR (hwaddr); | |
3737 | struct ifaddrs *it; | |
3738 | ||
3739 | for (it = ifap; it != NULL; it = it->ifa_next) | |
3740 | { | |
3741 | struct sockaddr_dl *sdl = (struct sockaddr_dl*) it->ifa_addr; | |
3742 | unsigned char linkaddr[6]; | |
3743 | int n; | |
3744 | ||
3745 | if (it->ifa_addr->sa_family != AF_LINK | |
3746 | || strcmp (it->ifa_name, SSDATA (ifname)) != 0 | |
3747 | || sdl->sdl_alen != 6) | |
3748 | continue; | |
3749 | ||
5e617bc2 | 3750 | memcpy (linkaddr, LLADDR (sdl), sdl->sdl_alen); |
377538cb JD |
3751 | for (n = 0; n < 6; n++) |
3752 | p->contents[n] = make_number (linkaddr[n]); | |
3753 | ||
3754 | elt = Fcons (make_number (it->ifa_addr->sa_family), hwaddr); | |
3755 | break; | |
3756 | } | |
3757 | } | |
3758 | #ifdef HAVE_FREEIFADDRS | |
3759 | freeifaddrs (ifap); | |
6b61353c | 3760 | #endif |
377538cb JD |
3761 | |
3762 | #endif /* HAVE_GETIFADDRS && LLADDR */ | |
3763 | ||
6b61353c KH |
3764 | res = Fcons (elt, res); |
3765 | ||
3766 | elt = Qnil; | |
5e617bc2 | 3767 | #if defined (SIOCGIFNETMASK) && (defined (HAVE_STRUCT_IFREQ_IFR_NETMASK) || defined (HAVE_STRUCT_IFREQ_IFR_ADDR)) |
6b61353c KH |
3768 | if (ioctl (s, SIOCGIFNETMASK, &rq) == 0) |
3769 | { | |
bc57d757 | 3770 | any = 1; |
2026418c | 3771 | #ifdef HAVE_STRUCT_IFREQ_IFR_NETMASK |
6b61353c | 3772 | elt = conv_sockaddr_to_lisp (&rq.ifr_netmask, sizeof (rq.ifr_netmask)); |
2026418c YM |
3773 | #else |
3774 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); | |
3775 | #endif | |
6b61353c KH |
3776 | } |
3777 | #endif | |
3778 | res = Fcons (elt, res); | |
3779 | ||
3780 | elt = Qnil; | |
5e617bc2 | 3781 | #if defined (SIOCGIFBRDADDR) && defined (HAVE_STRUCT_IFREQ_IFR_BROADADDR) |
6b61353c KH |
3782 | if (ioctl (s, SIOCGIFBRDADDR, &rq) == 0) |
3783 | { | |
bc57d757 | 3784 | any = 1; |
6b61353c KH |
3785 | elt = conv_sockaddr_to_lisp (&rq.ifr_broadaddr, sizeof (rq.ifr_broadaddr)); |
3786 | } | |
3787 | #endif | |
3788 | res = Fcons (elt, res); | |
3789 | ||
3790 | elt = Qnil; | |
5e617bc2 | 3791 | #if defined (SIOCGIFADDR) && defined (HAVE_STRUCT_IFREQ_IFR_ADDR) |
6b61353c KH |
3792 | if (ioctl (s, SIOCGIFADDR, &rq) == 0) |
3793 | { | |
bc57d757 | 3794 | any = 1; |
6b61353c KH |
3795 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); |
3796 | } | |
3797 | #endif | |
3798 | res = Fcons (elt, res); | |
3799 | ||
bacba3c2 | 3800 | emacs_close (s); |
6b61353c KH |
3801 | |
3802 | return any ? res : Qnil; | |
3803 | } | |
3804 | #endif | |
5e617bc2 | 3805 | #endif /* defined (HAVE_NET_IF_H) */ |
6b61353c | 3806 | |
04391069 RS |
3807 | /* Turn off input and output for process PROC. */ |
3808 | ||
40ccffa6 | 3809 | static void |
d3da34e0 | 3810 | deactivate_process (Lisp_Object proc) |
d0d6b7c5 JB |
3811 | { |
3812 | register int inchannel, outchannel; | |
3813 | register struct Lisp_Process *p = XPROCESS (proc); | |
3814 | ||
9c6c6f49 CY |
3815 | #ifdef HAVE_GNUTLS |
3816 | /* Delete GnuTLS structures in PROC, if any. */ | |
3817 | emacs_gnutls_deinit (proc); | |
3818 | #endif /* HAVE_GNUTLS */ | |
3819 | ||
60f0fb11 SM |
3820 | inchannel = p->infd; |
3821 | outchannel = p->outfd; | |
d0d6b7c5 | 3822 | |
6b61353c | 3823 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 3824 | if (p->read_output_delay > 0) |
6b61353c KH |
3825 | { |
3826 | if (--process_output_delay_count < 0) | |
3827 | process_output_delay_count = 0; | |
60f0fb11 SM |
3828 | p->read_output_delay = 0; |
3829 | p->read_output_skip = 0; | |
6b61353c KH |
3830 | } |
3831 | #endif | |
f3d9532b | 3832 | |
a9f2c884 | 3833 | if (inchannel >= 0) |
d0d6b7c5 JB |
3834 | { |
3835 | /* Beware SIGCHLD hereabouts. */ | |
3836 | flush_pending_output (inchannel); | |
68c45bf0 | 3837 | emacs_close (inchannel); |
a9f2c884 | 3838 | if (outchannel >= 0 && outchannel != inchannel) |
68c45bf0 | 3839 | emacs_close (outchannel); |
d0d6b7c5 | 3840 | |
60f0fb11 SM |
3841 | p->infd = -1; |
3842 | p->outfd = -1; | |
e690ca94 KS |
3843 | #ifdef DATAGRAM_SOCKETS |
3844 | if (DATAGRAM_CHAN_P (inchannel)) | |
3845 | { | |
3846 | xfree (datagram_address[inchannel].sa); | |
3847 | datagram_address[inchannel].sa = 0; | |
3848 | datagram_address[inchannel].len = 0; | |
3849 | } | |
3850 | #endif | |
d0d6b7c5 JB |
3851 | chan_process[inchannel] = Qnil; |
3852 | FD_CLR (inchannel, &input_wait_mask); | |
a69281ff | 3853 | FD_CLR (inchannel, &non_keyboard_wait_mask); |
bad49fc7 | 3854 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
3855 | if (FD_ISSET (inchannel, &connect_wait_mask)) |
3856 | { | |
3857 | FD_CLR (inchannel, &connect_wait_mask); | |
3fad2ad2 | 3858 | FD_CLR (inchannel, &write_mask); |
dd2a17ab | 3859 | if (--num_pending_connects < 0) |
1088b922 | 3860 | emacs_abort (); |
dd2a17ab | 3861 | } |
bad49fc7 | 3862 | #endif |
7d0e672e RS |
3863 | if (inchannel == max_process_desc) |
3864 | { | |
3865 | int i; | |
3866 | /* We just closed the highest-numbered process input descriptor, | |
3867 | so recompute the highest-numbered one now. */ | |
3868 | max_process_desc = 0; | |
3869 | for (i = 0; i < MAXDESC; i++) | |
3870 | if (!NILP (chan_process[i])) | |
3871 | max_process_desc = i; | |
3872 | } | |
d0d6b7c5 JB |
3873 | } |
3874 | } | |
3875 | ||
d0d6b7c5 JB |
3876 | \f |
3877 | DEFUN ("accept-process-output", Faccept_process_output, Saccept_process_output, | |
107ed38d | 3878 | 0, 4, 0, |
fdb82f93 PJ |
3879 | doc: /* Allow any pending output from subprocesses to be read by Emacs. |
3880 | It is read into the process' buffers or given to their filter functions. | |
3881 | Non-nil arg PROCESS means do not return until some output has been received | |
3882 | from PROCESS. | |
5088da42 | 3883 | |
2a7bb882 MR |
3884 | Non-nil second arg SECONDS and third arg MILLISEC are number of seconds |
3885 | and milliseconds to wait; return after that much time whether or not | |
3886 | there is any subprocess output. If SECONDS is a floating point number, | |
5088da42 | 3887 | it specifies a fractional number of seconds to wait. |
891bd142 | 3888 | The MILLISEC argument is obsolete and should be avoided. |
5088da42 | 3889 | |
107ed38d KS |
3890 | If optional fourth arg JUST-THIS-ONE is non-nil, only accept output |
3891 | from PROCESS, suspending reading output from other processes. | |
3892 | If JUST-THIS-ONE is an integer, don't run any timers either. | |
e0f24100 | 3893 | Return non-nil if we received any output before the timeout expired. */) |
5842a27b | 3894 | (register Lisp_Object process, Lisp_Object seconds, Lisp_Object millisec, Lisp_Object just_this_one) |
d0d6b7c5 | 3895 | { |
d35af63c PE |
3896 | intmax_t secs; |
3897 | int nsecs; | |
d0d6b7c5 | 3898 | |
0748d150 | 3899 | if (! NILP (process)) |
b7826503 | 3900 | CHECK_PROCESS (process); |
107ed38d KS |
3901 | else |
3902 | just_this_one = Qnil; | |
0748d150 | 3903 | |
891bd142 SM |
3904 | if (!NILP (millisec)) |
3905 | { /* Obsolete calling convention using integers rather than floats. */ | |
3906 | CHECK_NUMBER (millisec); | |
3907 | if (NILP (seconds)) | |
3908 | seconds = make_float (XINT (millisec) / 1000.0); | |
3909 | else | |
3910 | { | |
3911 | CHECK_NUMBER (seconds); | |
3912 | seconds = make_float (XINT (millisec) / 1000.0 + XINT (seconds)); | |
3913 | } | |
3914 | } | |
3915 | ||
d35af63c PE |
3916 | secs = 0; |
3917 | nsecs = -1; | |
3918 | ||
5088da42 | 3919 | if (!NILP (seconds)) |
d0d6b7c5 | 3920 | { |
d35af63c PE |
3921 | if (INTEGERP (seconds)) |
3922 | { | |
908589fd | 3923 | if (XINT (seconds) > 0) |
d35af63c PE |
3924 | { |
3925 | secs = XINT (seconds); | |
3926 | nsecs = 0; | |
3927 | } | |
3928 | } | |
3929 | else if (FLOATP (seconds)) | |
3930 | { | |
908589fd | 3931 | if (XFLOAT_DATA (seconds) > 0) |
d35af63c PE |
3932 | { |
3933 | EMACS_TIME t = EMACS_TIME_FROM_DOUBLE (XFLOAT_DATA (seconds)); | |
f1dd8073 | 3934 | secs = min (EMACS_SECS (t), WAIT_READING_MAX); |
d35af63c PE |
3935 | nsecs = EMACS_NSECS (t); |
3936 | } | |
3937 | } | |
3938 | else | |
3939 | wrong_type_argument (Qnumberp, seconds); | |
d0d6b7c5 | 3940 | } |
d35af63c PE |
3941 | else if (! NILP (process)) |
3942 | nsecs = 0; | |
d0d6b7c5 JB |
3943 | |
3944 | return | |
d35af63c | 3945 | (wait_reading_process_output (secs, nsecs, 0, 0, |
214d6069 KS |
3946 | Qnil, |
3947 | !NILP (process) ? XPROCESS (process) : NULL, | |
3948 | NILP (just_this_one) ? 0 : | |
3949 | !INTEGERP (just_this_one) ? 1 : -1) | |
d0d6b7c5 JB |
3950 | ? Qt : Qnil); |
3951 | } | |
3952 | ||
e690ca94 KS |
3953 | /* Accept a connection for server process SERVER on CHANNEL. */ |
3954 | ||
0bce5d9e | 3955 | static EMACS_INT connect_counter = 0; |
e690ca94 KS |
3956 | |
3957 | static void | |
d3da34e0 | 3958 | server_accept_connection (Lisp_Object server, int channel) |
e690ca94 KS |
3959 | { |
3960 | Lisp_Object proc, caller, name, buffer; | |
3961 | Lisp_Object contact, host, service; | |
3962 | struct Lisp_Process *ps= XPROCESS (server); | |
3963 | struct Lisp_Process *p; | |
3964 | int s; | |
3965 | union u_sockaddr { | |
3966 | struct sockaddr sa; | |
3967 | struct sockaddr_in in; | |
e1652a86 KS |
3968 | #ifdef AF_INET6 |
3969 | struct sockaddr_in6 in6; | |
3970 | #endif | |
e690ca94 KS |
3971 | #ifdef HAVE_LOCAL_SOCKETS |
3972 | struct sockaddr_un un; | |
3973 | #endif | |
3974 | } saddr; | |
401bf9b4 | 3975 | socklen_t len = sizeof saddr; |
e690ca94 | 3976 | |
067428c1 | 3977 | s = accept4 (channel, &saddr.sa, &len, SOCK_CLOEXEC); |
e690ca94 KS |
3978 | |
3979 | if (s < 0) | |
3980 | { | |
3981 | int code = errno; | |
3982 | ||
3983 | if (code == EAGAIN) | |
3984 | return; | |
3985 | #ifdef EWOULDBLOCK | |
3986 | if (code == EWOULDBLOCK) | |
3987 | return; | |
3988 | #endif | |
3989 | ||
4d2b044c DA |
3990 | if (!NILP (ps->log)) |
3991 | call3 (ps->log, server, Qnil, | |
e690ca94 KS |
3992 | concat3 (build_string ("accept failed with code"), |
3993 | Fnumber_to_string (make_number (code)), | |
3994 | build_string ("\n"))); | |
3995 | return; | |
3996 | } | |
3997 | ||
3998 | connect_counter++; | |
3999 | ||
4000 | /* Setup a new process to handle the connection. */ | |
4001 | ||
4002 | /* Generate a unique identification of the caller, and build contact | |
4003 | information for this process. */ | |
4004 | host = Qt; | |
4005 | service = Qnil; | |
4006 | switch (saddr.sa.sa_family) | |
4007 | { | |
4008 | case AF_INET: | |
4009 | { | |
4010 | Lisp_Object args[5]; | |
4011 | unsigned char *ip = (unsigned char *)&saddr.in.sin_addr.s_addr; | |
4012 | args[0] = build_string ("%d.%d.%d.%d"); | |
4013 | args[1] = make_number (*ip++); | |
4014 | args[2] = make_number (*ip++); | |
4015 | args[3] = make_number (*ip++); | |
4016 | args[4] = make_number (*ip++); | |
4017 | host = Fformat (5, args); | |
4018 | service = make_number (ntohs (saddr.in.sin_port)); | |
4019 | ||
4020 | args[0] = build_string (" <%s:%d>"); | |
4021 | args[1] = host; | |
4022 | args[2] = service; | |
4023 | caller = Fformat (3, args); | |
4024 | } | |
4025 | break; | |
4026 | ||
e1652a86 KS |
4027 | #ifdef AF_INET6 |
4028 | case AF_INET6: | |
4029 | { | |
4030 | Lisp_Object args[9]; | |
4031 | uint16_t *ip6 = (uint16_t *)&saddr.in6.sin6_addr; | |
4032 | int i; | |
4033 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
4034 | for (i = 0; i < 8; i++) | |
ed3751c8 | 4035 | args[i+1] = make_number (ntohs (ip6[i])); |
e1652a86 KS |
4036 | host = Fformat (9, args); |
4037 | service = make_number (ntohs (saddr.in.sin_port)); | |
4038 | ||
4039 | args[0] = build_string (" <[%s]:%d>"); | |
4040 | args[1] = host; | |
4041 | args[2] = service; | |
4042 | caller = Fformat (3, args); | |
4043 | } | |
4044 | break; | |
4045 | #endif | |
4046 | ||
e690ca94 KS |
4047 | #ifdef HAVE_LOCAL_SOCKETS |
4048 | case AF_LOCAL: | |
4049 | #endif | |
4050 | default: | |
4051 | caller = Fnumber_to_string (make_number (connect_counter)); | |
eef60308 | 4052 | caller = concat3 (build_string (" <"), caller, build_string (">")); |
e690ca94 KS |
4053 | break; |
4054 | } | |
4055 | ||
4056 | /* Create a new buffer name for this process if it doesn't have a | |
4057 | filter. The new buffer name is based on the buffer name or | |
4058 | process name of the server process concatenated with the caller | |
4059 | identification. */ | |
4060 | ||
1aa8d505 SM |
4061 | if (!(EQ (ps->filter, Qinternal_default_process_filter) |
4062 | || EQ (ps->filter, Qt))) | |
e690ca94 KS |
4063 | buffer = Qnil; |
4064 | else | |
4065 | { | |
4d2b044c | 4066 | buffer = ps->buffer; |
e690ca94 KS |
4067 | if (!NILP (buffer)) |
4068 | buffer = Fbuffer_name (buffer); | |
4069 | else | |
4d2b044c | 4070 | buffer = ps->name; |
e690ca94 KS |
4071 | if (!NILP (buffer)) |
4072 | { | |
4073 | buffer = concat2 (buffer, caller); | |
4074 | buffer = Fget_buffer_create (buffer); | |
4075 | } | |
4076 | } | |
4077 | ||
4078 | /* Generate a unique name for the new server process. Combine the | |
4079 | server process name with the caller identification. */ | |
4080 | ||
4d2b044c | 4081 | name = concat2 (ps->name, caller); |
e690ca94 KS |
4082 | proc = make_process (name); |
4083 | ||
4084 | chan_process[s] = proc; | |
4085 | ||
e690ca94 | 4086 | fcntl (s, F_SETFL, O_NONBLOCK); |
e690ca94 KS |
4087 | |
4088 | p = XPROCESS (proc); | |
4089 | ||
4090 | /* Build new contact information for this setup. */ | |
4d2b044c | 4091 | contact = Fcopy_sequence (ps->childp); |
e690ca94 KS |
4092 | contact = Fplist_put (contact, QCserver, Qnil); |
4093 | contact = Fplist_put (contact, QChost, host); | |
4094 | if (!NILP (service)) | |
4095 | contact = Fplist_put (contact, QCservice, service); | |
177c0ea7 | 4096 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
4097 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4098 | #ifdef HAVE_GETSOCKNAME | |
4099 | len = sizeof saddr; | |
2185db04 | 4100 | if (getsockname (s, &saddr.sa, &len) == 0) |
177c0ea7 | 4101 | contact = Fplist_put (contact, QClocal, |
e690ca94 KS |
4102 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4103 | #endif | |
4104 | ||
6a09a33b PE |
4105 | pset_childp (p, contact); |
4106 | pset_plist (p, Fcopy_sequence (ps->plist)); | |
4107 | pset_type (p, Qnetwork); | |
ac4a7584 | 4108 | |
6a09a33b PE |
4109 | pset_buffer (p, buffer); |
4110 | pset_sentinel (p, ps->sentinel); | |
4111 | pset_filter (p, ps->filter); | |
4112 | pset_command (p, Qnil); | |
6bfd98e7 | 4113 | p->pid = 0; |
60f0fb11 SM |
4114 | p->infd = s; |
4115 | p->outfd = s; | |
6a09a33b | 4116 | pset_status (p, Qrun); |
e690ca94 KS |
4117 | |
4118 | /* Client processes for accepted connections are not stopped initially. */ | |
4d2b044c | 4119 | if (!EQ (p->filter, Qt)) |
e690ca94 KS |
4120 | { |
4121 | FD_SET (s, &input_wait_mask); | |
4122 | FD_SET (s, &non_keyboard_wait_mask); | |
4123 | } | |
4124 | ||
4125 | if (s > max_process_desc) | |
4126 | max_process_desc = s; | |
4127 | ||
177c0ea7 | 4128 | /* Setup coding system for new process based on server process. |
e690ca94 KS |
4129 | This seems to be the proper thing to do, as the coding system |
4130 | of the new process should reflect the settings at the time the | |
1aa8d505 | 4131 | server socket was opened; not the current settings. */ |
e690ca94 | 4132 | |
6a09a33b PE |
4133 | pset_decode_coding_system (p, ps->decode_coding_system); |
4134 | pset_encode_coding_system (p, ps->encode_coding_system); | |
03f04413 | 4135 | setup_process_coding_systems (proc); |
e690ca94 | 4136 | |
6a09a33b | 4137 | pset_decoding_buf (p, empty_unibyte_string); |
60f0fb11 | 4138 | p->decoding_carryover = 0; |
6a09a33b | 4139 | pset_encoding_buf (p, empty_unibyte_string); |
e690ca94 KS |
4140 | |
4141 | p->inherit_coding_system_flag | |
60f0fb11 | 4142 | = (NILP (buffer) ? 0 : ps->inherit_coding_system_flag); |
e690ca94 | 4143 | |
4d2b044c DA |
4144 | if (!NILP (ps->log)) |
4145 | call3 (ps->log, server, proc, | |
e690ca94 KS |
4146 | concat3 (build_string ("accept from "), |
4147 | (STRINGP (host) ? host : build_string ("-")), | |
4148 | build_string ("\n"))); | |
4149 | ||
1aa8d505 SM |
4150 | exec_sentinel (proc, |
4151 | concat3 (build_string ("open from "), | |
4152 | (STRINGP (host) ? host : build_string ("-")), | |
4153 | build_string ("\n"))); | |
e690ca94 KS |
4154 | } |
4155 | ||
d0d6b7c5 JB |
4156 | /* This variable is different from waiting_for_input in keyboard.c. |
4157 | It is used to communicate to a lisp process-filter/sentinel (via the | |
f3d9532b | 4158 | function Fwaiting_for_user_input_p below) whether Emacs was waiting |
d0d6b7c5 JB |
4159 | for user-input when that process-filter was called. |
4160 | waiting_for_input cannot be used as that is by definition 0 when | |
d430ee71 RS |
4161 | lisp code is being evalled. |
4162 | This is also used in record_asynch_buffer_change. | |
4163 | For that purpose, this must be 0 | |
214d6069 | 4164 | when not inside wait_reading_process_output. */ |
d0d6b7c5 JB |
4165 | static int waiting_for_user_input_p; |
4166 | ||
27e498e6 PE |
4167 | static void |
4168 | wait_reading_process_output_unwind (int data) | |
2beb96f9 | 4169 | { |
27e498e6 | 4170 | waiting_for_user_input_p = data; |
2beb96f9 KS |
4171 | } |
4172 | ||
c573ae8e | 4173 | /* This is here so breakpoints can be put on it. */ |
dfcf069d | 4174 | static void |
d3da34e0 | 4175 | wait_reading_process_output_1 (void) |
c573ae8e RS |
4176 | { |
4177 | } | |
4178 | ||
d0d6b7c5 JB |
4179 | /* Read and dispose of subprocess output while waiting for timeout to |
4180 | elapse and/or keyboard input to be available. | |
4181 | ||
de6fd4b9 | 4182 | TIME_LIMIT is: |
d35af63c PE |
4183 | timeout in seconds |
4184 | If negative, gobble data immediately available but don't wait for any. | |
d0d6b7c5 | 4185 | |
d35af63c PE |
4186 | NSECS is: |
4187 | an additional duration to wait, measured in nanoseconds | |
4188 | If TIME_LIMIT is zero, then: | |
4189 | If NSECS == 0, there is no limit. | |
d188e26b | 4190 | If NSECS > 0, the timeout consists of NSECS only. |
d35af63c | 4191 | If NSECS < 0, gobble data immediately, as if TIME_LIMIT were negative. |
6e4f3667 | 4192 | |
a0bee46f | 4193 | READ_KBD is: |
d0d6b7c5 JB |
4194 | 0 to ignore keyboard input, or |
4195 | 1 to return when input is available, or | |
84aa3ace | 4196 | -1 meaning caller will actually read the input, so don't throw to |
d0d6b7c5 | 4197 | the quit handler, or |
d0d6b7c5 | 4198 | |
9fa1de30 | 4199 | DO_DISPLAY means redisplay should be done to show subprocess |
107ed38d | 4200 | output that arrives. |
d0d6b7c5 | 4201 | |
b89a415a KS |
4202 | If WAIT_FOR_CELL is a cons cell, wait until its car is non-nil |
4203 | (and gobble terminal input into the buffer if any arrives). | |
d0d6b7c5 | 4204 | |
b89a415a | 4205 | If WAIT_PROC is specified, wait until something arrives from that |
e0f24100 | 4206 | process. The return value is true if we read some input from |
b89a415a KS |
4207 | that process. |
4208 | ||
0bce5d9e | 4209 | If JUST_WAIT_PROC is nonzero, handle only output from WAIT_PROC |
b89a415a KS |
4210 | (suspending output from other processes). A negative value |
4211 | means don't run any timers either. | |
4212 | ||
e0f24100 | 4213 | If WAIT_PROC is specified, then the function returns true if we |
b89a415a | 4214 | received input from that process before the timeout elapsed. |
e0f24100 | 4215 | Otherwise, return true if we received input from any process. */ |
d0d6b7c5 | 4216 | |
0bce5d9e | 4217 | bool |
d35af63c | 4218 | wait_reading_process_output (intmax_t time_limit, int nsecs, int read_kbd, |
9fa1de30 | 4219 | bool do_display, |
d5a3eaaf AS |
4220 | Lisp_Object wait_for_cell, |
4221 | struct Lisp_Process *wait_proc, int just_wait_proc) | |
d0d6b7c5 | 4222 | { |
0bce5d9e | 4223 | int channel, nfds; |
855448dc | 4224 | SELECT_TYPE Available; |
3fad2ad2 | 4225 | SELECT_TYPE Writeok; |
0bce5d9e PE |
4226 | bool check_write; |
4227 | int check_delay; | |
4228 | bool no_avail; | |
d0d6b7c5 JB |
4229 | int xerrno; |
4230 | Lisp_Object proc; | |
41d03b9a | 4231 | EMACS_TIME timeout, end_time; |
a9f2c884 | 4232 | int wait_channel = -1; |
0bce5d9e | 4233 | bool got_some_input = 0; |
d311d28c | 4234 | ptrdiff_t count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
4235 | |
4236 | FD_ZERO (&Available); | |
3fad2ad2 | 4237 | FD_ZERO (&Writeok); |
d0d6b7c5 | 4238 | |
d35af63c | 4239 | if (time_limit == 0 && nsecs == 0 && wait_proc && !NILP (Vinhibit_quit) |
4d2b044c DA |
4240 | && !(CONSP (wait_proc->status) |
4241 | && EQ (XCAR (wait_proc->status), Qexit))) | |
2f73da9c | 4242 | message1 ("Blocking call to accept-process-output with quit inhibited!!"); |
2b0a91e7 | 4243 | |
b89a415a KS |
4244 | /* If wait_proc is a process to watch, set wait_channel accordingly. */ |
4245 | if (wait_proc != NULL) | |
60f0fb11 | 4246 | wait_channel = wait_proc->infd; |
84aa3ace | 4247 | |
27e498e6 PE |
4248 | record_unwind_protect_int (wait_reading_process_output_unwind, |
4249 | waiting_for_user_input_p); | |
b89a415a | 4250 | waiting_for_user_input_p = read_kbd; |
d0d6b7c5 | 4251 | |
d35af63c PE |
4252 | if (time_limit < 0) |
4253 | { | |
4254 | time_limit = 0; | |
4255 | nsecs = -1; | |
4256 | } | |
7216e43b | 4257 | else if (TYPE_MAXIMUM (time_t) < time_limit) |
d35af63c PE |
4258 | time_limit = TYPE_MAXIMUM (time_t); |
4259 | ||
d0d6b7c5 JB |
4260 | /* Since we may need to wait several times, |
4261 | compute the absolute time to return at. */ | |
908589fd | 4262 | if (time_limit || nsecs > 0) |
d0d6b7c5 | 4263 | { |
e9a9ae03 PE |
4264 | timeout = make_emacs_time (time_limit, nsecs); |
4265 | end_time = add_emacs_time (current_emacs_time (), timeout); | |
d0d6b7c5 JB |
4266 | } |
4267 | ||
d0d6b7c5 JB |
4268 | while (1) |
4269 | { | |
0bce5d9e | 4270 | bool timeout_reduced_for_timers = 0; |
209c6a58 | 4271 | |
d0d6b7c5 JB |
4272 | /* If calling from keyboard input, do not quit |
4273 | since we want to return C-g as an input character. | |
4274 | Otherwise, do pending quit if requested. */ | |
b89a415a | 4275 | if (read_kbd >= 0) |
d0d6b7c5 | 4276 | QUIT; |
4d7e6e51 | 4277 | else if (pending_signals) |
c3eff1b0 | 4278 | process_pending_signals (); |
d0d6b7c5 | 4279 | |
889255b4 | 4280 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 4281 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
889255b4 RS |
4282 | break; |
4283 | ||
1aa8d505 SM |
4284 | /* Compute time from now till when time limit is up. */ |
4285 | /* Exit if already run out. */ | |
d35af63c | 4286 | if (nsecs < 0) |
d0d6b7c5 | 4287 | { |
216ee680 | 4288 | /* A negative timeout means |
d0d6b7c5 JB |
4289 | gobble output available now |
4290 | but don't wait at all. */ | |
4291 | ||
e9a9ae03 | 4292 | timeout = make_emacs_time (0, 0); |
d0d6b7c5 | 4293 | } |
908589fd | 4294 | else if (time_limit || nsecs > 0) |
d0d6b7c5 | 4295 | { |
e9a9ae03 PE |
4296 | EMACS_TIME now = current_emacs_time (); |
4297 | if (EMACS_TIME_LE (end_time, now)) | |
d0d6b7c5 | 4298 | break; |
e9a9ae03 | 4299 | timeout = sub_emacs_time (end_time, now); |
d0d6b7c5 JB |
4300 | } |
4301 | else | |
4302 | { | |
e9a9ae03 | 4303 | timeout = make_emacs_time (100000, 0); |
d0d6b7c5 JB |
4304 | } |
4305 | ||
f854a00b RS |
4306 | /* Normally we run timers here. |
4307 | But not if wait_for_cell; in those cases, | |
4308 | the wait is supposed to be short, | |
4309 | and those callers cannot handle running arbitrary Lisp code here. */ | |
107ed38d | 4310 | if (NILP (wait_for_cell) |
b89a415a | 4311 | && just_wait_proc >= 0) |
fb4c3627 | 4312 | { |
c0239a0b | 4313 | EMACS_TIME timer_delay; |
c573ae8e | 4314 | |
9baacf76 | 4315 | do |
c573ae8e | 4316 | { |
9fa1de30 | 4317 | unsigned old_timers_run = timers_run; |
c88164fe | 4318 | struct buffer *old_buffer = current_buffer; |
70bb1e5f | 4319 | Lisp_Object old_window = selected_window; |
177c0ea7 | 4320 | |
f868cd8a | 4321 | timer_delay = timer_check (); |
a2fab450 GM |
4322 | |
4323 | /* If a timer has run, this might have changed buffers | |
4324 | an alike. Make read_key_sequence aware of that. */ | |
4325 | if (timers_run != old_timers_run | |
70bb1e5f CY |
4326 | && (old_buffer != current_buffer |
4327 | || !EQ (old_window, selected_window)) | |
a2fab450 GM |
4328 | && waiting_for_user_input_p == -1) |
4329 | record_asynch_buffer_change (); | |
177c0ea7 | 4330 | |
9baacf76 GM |
4331 | if (timers_run != old_timers_run && do_display) |
4332 | /* We must retry, since a timer may have requeued itself | |
4333 | and that could alter the time_delay. */ | |
3007ebfb | 4334 | redisplay_preserve_echo_area (9); |
9baacf76 GM |
4335 | else |
4336 | break; | |
c573ae8e | 4337 | } |
9baacf76 | 4338 | while (!detect_input_pending ()); |
c573ae8e | 4339 | |
69645afc | 4340 | /* If there is unread keyboard input, also return. */ |
b89a415a | 4341 | if (read_kbd != 0 |
69645afc RS |
4342 | && requeued_events_pending_p ()) |
4343 | break; | |
4344 | ||
216ee680 | 4345 | /* A negative timeout means do not wait at all. */ |
908589fd | 4346 | if (nsecs >= 0) |
fb4c3627 | 4347 | { |
d35af63c | 4348 | if (EMACS_TIME_VALID_P (timer_delay)) |
c0239a0b | 4349 | { |
d35af63c | 4350 | if (EMACS_TIME_LT (timer_delay, timeout)) |
209c6a58 CY |
4351 | { |
4352 | timeout = timer_delay; | |
4353 | timeout_reduced_for_timers = 1; | |
4354 | } | |
d35af63c PE |
4355 | } |
4356 | else | |
4357 | { | |
4358 | /* This is so a breakpoint can be put here. */ | |
4359 | wait_reading_process_output_1 (); | |
c0239a0b | 4360 | } |
c573ae8e | 4361 | } |
fb4c3627 RS |
4362 | } |
4363 | ||
90ab1a81 JB |
4364 | /* Cause C-g and alarm signals to take immediate action, |
4365 | and cause input available signals to zero out timeout. | |
4366 | ||
4367 | It is important that we do this before checking for process | |
4368 | activity. If we get a SIGCHLD after the explicit checks for | |
4369 | process activity, timeout is the only way we will know. */ | |
b89a415a | 4370 | if (read_kbd < 0) |
90ab1a81 JB |
4371 | set_waiting_for_input (&timeout); |
4372 | ||
6be429b1 JB |
4373 | /* If status of something has changed, and no input is |
4374 | available, notify the user of the change right away. After | |
4375 | this explicit check, we'll let the SIGCHLD handler zap | |
e42bdf01 CY |
4376 | timeout to get our attention. */ |
4377 | if (update_tick != process_tick) | |
6be429b1 | 4378 | { |
bad49fc7 | 4379 | SELECT_TYPE Atemp; |
bad49fc7 | 4380 | SELECT_TYPE Ctemp; |
dd2a17ab | 4381 | |
cb768704 J |
4382 | if (kbd_on_hold_p ()) |
4383 | FD_ZERO (&Atemp); | |
4384 | else | |
4385 | Atemp = input_wait_mask; | |
3fad2ad2 | 4386 | Ctemp = write_mask; |
bad49fc7 | 4387 | |
e9a9ae03 | 4388 | timeout = make_emacs_time (0, 0); |
d35af63c PE |
4389 | if ((pselect (max (max_process_desc, max_input_desc) + 1, |
4390 | &Atemp, | |
bad49fc7 | 4391 | #ifdef NON_BLOCKING_CONNECT |
d35af63c | 4392 | (num_pending_connects > 0 ? &Ctemp : NULL), |
bad49fc7 | 4393 | #else |
d35af63c | 4394 | NULL, |
bad49fc7 | 4395 | #endif |
d35af63c | 4396 | NULL, &timeout, NULL) |
ecd1f654 | 4397 | <= 0)) |
90ab1a81 JB |
4398 | { |
4399 | /* It's okay for us to do this and then continue with | |
a0e4d3f3 | 4400 | the loop, since timeout has already been zeroed out. */ |
90ab1a81 | 4401 | clear_waiting_for_input (); |
ff6daed3 | 4402 | status_notify (NULL); |
e42bdf01 | 4403 | if (do_display) redisplay_preserve_echo_area (13); |
90ab1a81 | 4404 | } |
6be429b1 JB |
4405 | } |
4406 | ||
dd2a17ab | 4407 | /* Don't wait for output from a non-running process. Just |
63136da6 | 4408 | read whatever data has already been received. */ |
6bfd98e7 | 4409 | if (wait_proc && wait_proc->raw_status_new) |
6be429b1 | 4410 | update_status (wait_proc); |
6bfd98e7 | 4411 | if (wait_proc |
4d2b044c DA |
4412 | && ! EQ (wait_proc->status, Qrun) |
4413 | && ! EQ (wait_proc->status, Qconnect)) | |
9aa2a7f4 | 4414 | { |
f86852b4 | 4415 | bool read_some_bytes = 0; |
7ce63188 | 4416 | |
9aa2a7f4 | 4417 | clear_waiting_for_input (); |
7ce63188 RS |
4418 | XSETPROCESS (proc, wait_proc); |
4419 | ||
4420 | /* Read data from the process, until we exhaust it. */ | |
60f0fb11 | 4421 | while (wait_proc->infd >= 0) |
215b45e9 | 4422 | { |
f86852b4 | 4423 | int nread = read_process_output (proc, wait_proc->infd); |
e1b37c34 GM |
4424 | |
4425 | if (nread == 0) | |
4426 | break; | |
4427 | ||
908589fd | 4428 | if (nread > 0) |
f86852b4 | 4429 | got_some_input = read_some_bytes = 1; |
22626a85 | 4430 | else if (nread == -1 && (errno == EIO || errno == EAGAIN)) |
63136da6 | 4431 | break; |
e1b37c34 GM |
4432 | #ifdef EWOULDBLOCK |
4433 | else if (nread == -1 && EWOULDBLOCK == errno) | |
63136da6 | 4434 | break; |
215b45e9 RS |
4435 | #endif |
4436 | } | |
f86852b4 | 4437 | if (read_some_bytes && do_display) |
3007ebfb | 4438 | redisplay_preserve_echo_area (10); |
7ce63188 | 4439 | |
9aa2a7f4 JB |
4440 | break; |
4441 | } | |
6be429b1 | 4442 | |
d0d6b7c5 JB |
4443 | /* Wait till there is something to do */ |
4444 | ||
b89a415a | 4445 | if (wait_proc && just_wait_proc) |
107ed38d | 4446 | { |
60f0fb11 | 4447 | if (wait_proc->infd < 0) /* Terminated */ |
b89a415a | 4448 | break; |
60f0fb11 | 4449 | FD_SET (wait_proc->infd, &Available); |
bad49fc7 | 4450 | check_delay = 0; |
3fad2ad2 | 4451 | check_write = 0; |
107ed38d KS |
4452 | } |
4453 | else if (!NILP (wait_for_cell)) | |
dd2a17ab KS |
4454 | { |
4455 | Available = non_process_wait_mask; | |
bad49fc7 | 4456 | check_delay = 0; |
3fad2ad2 | 4457 | check_write = 0; |
dd2a17ab | 4458 | } |
a69281ff | 4459 | else |
dd2a17ab | 4460 | { |
b89a415a | 4461 | if (! read_kbd) |
dd2a17ab KS |
4462 | Available = non_keyboard_wait_mask; |
4463 | else | |
4464 | Available = input_wait_mask; | |
3fad2ad2 | 4465 | Writeok = write_mask; |
82d6e50b J |
4466 | #ifdef SELECT_CANT_DO_WRITE_MASK |
4467 | check_write = 0; | |
4468 | #else | |
3fad2ad2 | 4469 | check_write = 1; |
82d6e50b | 4470 | #endif |
6b61353c | 4471 | check_delay = wait_channel >= 0 ? 0 : process_output_delay_count; |
dd2a17ab | 4472 | } |
d0d6b7c5 | 4473 | |
ff11dfa1 | 4474 | /* If frame size has changed or the window is newly mapped, |
ffd56f97 JB |
4475 | redisplay now, before we start to wait. There is a race |
4476 | condition here; if a SIGIO arrives between now and the select | |
016899c0 JB |
4477 | and indicates that a frame is trashed, the select may block |
4478 | displaying a trashed screen. */ | |
5164ee8e | 4479 | if (frame_garbaged && do_display) |
7286affd RS |
4480 | { |
4481 | clear_waiting_for_input (); | |
3007ebfb | 4482 | redisplay_preserve_echo_area (11); |
b89a415a | 4483 | if (read_kbd < 0) |
7efe788e | 4484 | set_waiting_for_input (&timeout); |
7286affd | 4485 | } |
ffd56f97 | 4486 | |
029529ac CY |
4487 | /* Skip the `select' call if input is available and we're |
4488 | waiting for keyboard input or a cell change (which can be | |
4489 | triggered by processing X events). In the latter case, set | |
4490 | nfds to 1 to avoid breaking the loop. */ | |
dd2a17ab | 4491 | no_avail = 0; |
029529ac CY |
4492 | if ((read_kbd || !NILP (wait_for_cell)) |
4493 | && detect_input_pending ()) | |
0a65b032 | 4494 | { |
029529ac | 4495 | nfds = read_kbd ? 0 : 1; |
dd2a17ab | 4496 | no_avail = 1; |
0a65b032 | 4497 | } |
029529ac CY |
4498 | |
4499 | if (!no_avail) | |
dd2a17ab | 4500 | { |
6b61353c KH |
4501 | |
4502 | #ifdef ADAPTIVE_READ_BUFFERING | |
db853b7a | 4503 | /* Set the timeout for adaptive read buffering if any |
60f0fb11 | 4504 | process has non-zero read_output_skip and non-zero |
db853b7a KS |
4505 | read_output_delay, and we are not reading output for a |
4506 | specific wait_channel. It is not executed if | |
4507 | Vprocess_adaptive_read_buffering is nil. */ | |
6b61353c KH |
4508 | if (process_output_skip && check_delay > 0) |
4509 | { | |
d35af63c PE |
4510 | int nsecs = EMACS_NSECS (timeout); |
4511 | if (EMACS_SECS (timeout) > 0 || nsecs > READ_OUTPUT_DELAY_MAX) | |
4512 | nsecs = READ_OUTPUT_DELAY_MAX; | |
6b61353c KH |
4513 | for (channel = 0; check_delay > 0 && channel <= max_process_desc; channel++) |
4514 | { | |
4515 | proc = chan_process[channel]; | |
4516 | if (NILP (proc)) | |
4517 | continue; | |
db853b7a | 4518 | /* Find minimum non-zero read_output_delay among the |
60f0fb11 SM |
4519 | processes with non-zero read_output_skip. */ |
4520 | if (XPROCESS (proc)->read_output_delay > 0) | |
6b61353c KH |
4521 | { |
4522 | check_delay--; | |
60f0fb11 | 4523 | if (!XPROCESS (proc)->read_output_skip) |
6b61353c KH |
4524 | continue; |
4525 | FD_CLR (channel, &Available); | |
60f0fb11 | 4526 | XPROCESS (proc)->read_output_skip = 0; |
d35af63c PE |
4527 | if (XPROCESS (proc)->read_output_delay < nsecs) |
4528 | nsecs = XPROCESS (proc)->read_output_delay; | |
6b61353c KH |
4529 | } |
4530 | } | |
e9a9ae03 | 4531 | timeout = make_emacs_time (0, nsecs); |
6b61353c KH |
4532 | process_output_skip = 0; |
4533 | } | |
4534 | #endif | |
0fda9b75 | 4535 | |
b33f93ee JD |
4536 | #if defined (HAVE_NS) |
4537 | nfds = ns_select | |
4538 | #elif defined (HAVE_GLIB) | |
4539 | nfds = xg_select | |
edfda783 | 4540 | #else |
d35af63c | 4541 | nfds = pselect |
edfda783 | 4542 | #endif |
3fad2ad2 J |
4543 | (max (max_process_desc, max_input_desc) + 1, |
4544 | &Available, | |
4545 | (check_write ? &Writeok : (SELECT_TYPE *)0), | |
d35af63c | 4546 | NULL, &timeout, NULL); |
e061a11b TZ |
4547 | |
4548 | #ifdef HAVE_GNUTLS | |
4549 | /* GnuTLS buffers data internally. In lowat mode it leaves | |
4550 | some data in the TCP buffers so that select works, but | |
4551 | with custom pull/push functions we need to check if some | |
4552 | data is available in the buffers manually. */ | |
261b6fd4 LMI |
4553 | if (nfds == 0) |
4554 | { | |
4555 | if (! wait_proc) | |
4556 | { | |
4557 | /* We're not waiting on a specific process, so loop | |
16c1ad08 LMI |
4558 | through all the channels and check for data. |
4559 | This is a workaround needed for some versions of | |
4560 | the gnutls library -- 2.12.14 has been confirmed | |
4561 | to need it. See | |
4562 | http://comments.gmane.org/gmane.emacs.devel/145074 */ | |
261b6fd4 | 4563 | for (channel = 0; channel < MAXDESC; ++channel) |
5b76caa4 PE |
4564 | if (! NILP (chan_process[channel])) |
4565 | { | |
4566 | struct Lisp_Process *p = | |
4567 | XPROCESS (chan_process[channel]); | |
4568 | if (p && p->gnutls_p && p->infd | |
4569 | && ((emacs_gnutls_record_check_pending | |
4570 | (p->gnutls_state)) | |
4571 | > 0)) | |
4572 | { | |
4573 | nfds++; | |
4574 | FD_SET (p->infd, &Available); | |
4575 | } | |
4576 | } | |
261b6fd4 LMI |
4577 | } |
4578 | else | |
4579 | { | |
4580 | /* Check this specific channel. */ | |
5b76caa4 | 4581 | if (wait_proc->gnutls_p /* Check for valid process. */ |
261b6fd4 | 4582 | /* Do we have pending data? */ |
5b76caa4 PE |
4583 | && ((emacs_gnutls_record_check_pending |
4584 | (wait_proc->gnutls_state)) | |
4585 | > 0)) | |
261b6fd4 LMI |
4586 | { |
4587 | nfds = 1; | |
4588 | /* Set to Available. */ | |
4589 | FD_SET (wait_proc->infd, &Available); | |
4590 | } | |
4591 | } | |
4592 | } | |
e061a11b | 4593 | #endif |
dd2a17ab | 4594 | } |
6720a7fb | 4595 | |
d0d6b7c5 JB |
4596 | xerrno = errno; |
4597 | ||
4598 | /* Make C-g and alarm signals set flags again */ | |
4599 | clear_waiting_for_input (); | |
4600 | ||
4601 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 4602 | do_pending_window_change (0); |
d0d6b7c5 | 4603 | |
209c6a58 CY |
4604 | if ((time_limit || nsecs) && nfds == 0 && ! timeout_reduced_for_timers) |
4605 | /* We waited the full specified time, so return now. */ | |
4606 | break; | |
d0d6b7c5 JB |
4607 | if (nfds < 0) |
4608 | { | |
4609 | if (xerrno == EINTR) | |
dd2a17ab | 4610 | no_avail = 1; |
d0d6b7c5 | 4611 | else if (xerrno == EBADF) |
7e649856 | 4612 | emacs_abort (); |
d0d6b7c5 | 4613 | else |
4e604a5d | 4614 | report_file_errno ("Failed select", Qnil, xerrno); |
d0d6b7c5 | 4615 | } |
dd2a17ab KS |
4616 | |
4617 | if (no_avail) | |
4618 | { | |
4619 | FD_ZERO (&Available); | |
3fad2ad2 | 4620 | check_write = 0; |
dd2a17ab KS |
4621 | } |
4622 | ||
d0d6b7c5 JB |
4623 | /* Check for keyboard input */ |
4624 | /* If there is any, return immediately | |
4625 | to give it higher priority than subprocesses */ | |
4626 | ||
b89a415a | 4627 | if (read_kbd != 0) |
6ed6233b | 4628 | { |
9fa1de30 | 4629 | unsigned old_timers_run = timers_run; |
c88164fe | 4630 | struct buffer *old_buffer = current_buffer; |
c0323133 | 4631 | Lisp_Object old_window = selected_window; |
0bce5d9e | 4632 | bool leave = 0; |
177c0ea7 | 4633 | |
5d6c2aa3 | 4634 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 GM |
4635 | { |
4636 | swallow_events (do_display); | |
4637 | if (detect_input_pending_run_timers (do_display)) | |
4638 | leave = 1; | |
4639 | } | |
6ed6233b | 4640 | |
a2fab450 GM |
4641 | /* If a timer has run, this might have changed buffers |
4642 | an alike. Make read_key_sequence aware of that. */ | |
4643 | if (timers_run != old_timers_run | |
c88164fe | 4644 | && waiting_for_user_input_p == -1 |
c0323133 GM |
4645 | && (old_buffer != current_buffer |
4646 | || !EQ (old_window, selected_window))) | |
a2fab450 GM |
4647 | record_asynch_buffer_change (); |
4648 | ||
4649 | if (leave) | |
4650 | break; | |
177c0ea7 JB |
4651 | } |
4652 | ||
69645afc | 4653 | /* If there is unread keyboard input, also return. */ |
b89a415a | 4654 | if (read_kbd != 0 |
69645afc RS |
4655 | && requeued_events_pending_p ()) |
4656 | break; | |
4657 | ||
77e1b3d4 RS |
4658 | /* If we are not checking for keyboard input now, |
4659 | do process events (but don't run any timers). | |
4660 | This is so that X events will be processed. | |
0c9960e9 | 4661 | Otherwise they may have to wait until polling takes place. |
77e1b3d4 RS |
4662 | That would causes delays in pasting selections, for example. |
4663 | ||
4664 | (We used to do this only if wait_for_cell.) */ | |
b89a415a | 4665 | if (read_kbd == 0 && detect_input_pending ()) |
f854a00b RS |
4666 | { |
4667 | swallow_events (do_display); | |
0c9960e9 | 4668 | #if 0 /* Exiting when read_kbd doesn't request that seems wrong, though. */ |
f854a00b RS |
4669 | if (detect_input_pending ()) |
4670 | break; | |
5d5beb62 | 4671 | #endif |
0c9960e9 | 4672 | } |
f854a00b | 4673 | |
84aa3ace | 4674 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 4675 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
84aa3ace RS |
4676 | break; |
4677 | ||
4a4bbad2 | 4678 | #ifdef USABLE_SIGIO |
5d5beb62 | 4679 | /* If we think we have keyboard input waiting, but didn't get SIGIO, |
d0d6b7c5 JB |
4680 | go read it. This can happen with X on BSD after logging out. |
4681 | In that case, there really is no input and no SIGIO, | |
4682 | but select says there is input. */ | |
4683 | ||
b89a415a | 4684 | if (read_kbd && interrupt_input |
2601f59e | 4685 | && keyboard_bit_set (&Available) && ! noninteractive) |
4d7e6e51 | 4686 | handle_input_available_signal (SIGIO); |
4746118a | 4687 | #endif |
d0d6b7c5 | 4688 | |
d0d6b7c5 JB |
4689 | if (! wait_proc) |
4690 | got_some_input |= nfds > 0; | |
4691 | ||
32676c08 JB |
4692 | /* If checking input just got us a size-change event from X, |
4693 | obey it now if we should. */ | |
b89a415a | 4694 | if (read_kbd || ! NILP (wait_for_cell)) |
2b653806 | 4695 | do_pending_window_change (0); |
32676c08 | 4696 | |
a9f2c884 | 4697 | /* Check for data from a process. */ |
dd2a17ab KS |
4698 | if (no_avail || nfds == 0) |
4699 | continue; | |
4700 | ||
3fad2ad2 J |
4701 | for (channel = 0; channel <= max_input_desc; ++channel) |
4702 | { | |
4703 | struct fd_callback_data *d = &fd_callback_info[channel]; | |
de1339b0 PE |
4704 | if (d->func |
4705 | && ((d->condition & FOR_READ | |
4706 | && FD_ISSET (channel, &Available)) | |
4707 | || (d->condition & FOR_WRITE | |
4708 | && FD_ISSET (channel, &write_mask)))) | |
4709 | d->func (channel, d->data); | |
4710 | } | |
3fad2ad2 | 4711 | |
a69281ff | 4712 | for (channel = 0; channel <= max_process_desc; channel++) |
d0d6b7c5 | 4713 | { |
a69281ff | 4714 | if (FD_ISSET (channel, &Available) |
3fad2ad2 J |
4715 | && FD_ISSET (channel, &non_keyboard_wait_mask) |
4716 | && !FD_ISSET (channel, &non_process_wait_mask)) | |
d0d6b7c5 JB |
4717 | { |
4718 | int nread; | |
4719 | ||
4720 | /* If waiting for this channel, arrange to return as | |
4721 | soon as no more input to be processed. No more | |
4722 | waiting. */ | |
4723 | if (wait_channel == channel) | |
4724 | { | |
a9f2c884 | 4725 | wait_channel = -1; |
d35af63c | 4726 | nsecs = -1; |
d0d6b7c5 JB |
4727 | got_some_input = 1; |
4728 | } | |
4729 | proc = chan_process[channel]; | |
4730 | if (NILP (proc)) | |
4731 | continue; | |
4732 | ||
e690ca94 | 4733 | /* If this is a server stream socket, accept connection. */ |
4d2b044c | 4734 | if (EQ (XPROCESS (proc)->status, Qlisten)) |
e690ca94 KS |
4735 | { |
4736 | server_accept_connection (proc, channel); | |
4737 | continue; | |
4738 | } | |
4739 | ||
d0d6b7c5 JB |
4740 | /* Read data from the process, starting with our |
4741 | buffered-ahead character if we have one. */ | |
4742 | ||
4743 | nread = read_process_output (proc, channel); | |
4744 | if (nread > 0) | |
4745 | { | |
4746 | /* Since read_process_output can run a filter, | |
4747 | which can call accept-process-output, | |
4748 | don't try to read from any other processes | |
4749 | before doing the select again. */ | |
4750 | FD_ZERO (&Available); | |
4751 | ||
4752 | if (do_display) | |
3007ebfb | 4753 | redisplay_preserve_echo_area (12); |
d0d6b7c5 JB |
4754 | } |
4755 | #ifdef EWOULDBLOCK | |
4756 | else if (nread == -1 && errno == EWOULDBLOCK) | |
4757 | ; | |
0b75e9a4 | 4758 | #endif |
d0d6b7c5 JB |
4759 | else if (nread == -1 && errno == EAGAIN) |
4760 | ; | |
49cdacda PE |
4761 | #ifdef WINDOWSNT |
4762 | /* FIXME: Is this special case still needed? */ | |
d0d6b7c5 JB |
4763 | /* Note that we cannot distinguish between no input |
4764 | available now and a closed pipe. | |
4765 | With luck, a closed pipe will be accompanied by | |
4766 | subprocess termination and SIGCHLD. */ | |
d888760c | 4767 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 | 4768 | ; |
49cdacda | 4769 | #endif |
d0d6b7c5 JB |
4770 | #ifdef HAVE_PTYS |
4771 | /* On some OSs with ptys, when the process on one end of | |
4772 | a pty exits, the other end gets an error reading with | |
4773 | errno = EIO instead of getting an EOF (0 bytes read). | |
4774 | Therefore, if we get an error reading and errno = | |
4775 | EIO, just continue, because the child process has | |
4776 | exited and should clean itself up soon (e.g. when we | |
207a7ef0 | 4777 | get a SIGCHLD). */ |
d0d6b7c5 | 4778 | else if (nread == -1 && errno == EIO) |
4740825c | 4779 | { |
f30d612a CY |
4780 | struct Lisp_Process *p = XPROCESS (proc); |
4781 | ||
4782 | /* Clear the descriptor now, so we only raise the | |
4783 | signal once. */ | |
4784 | FD_CLR (channel, &input_wait_mask); | |
4785 | FD_CLR (channel, &non_keyboard_wait_mask); | |
4786 | ||
4787 | if (p->pid == -2) | |
4788 | { | |
20ef56db PE |
4789 | /* If the EIO occurs on a pty, the SIGCHLD handler's |
4790 | waitpid call will not find the process object to | |
f30d612a CY |
4791 | delete. Do it here. */ |
4792 | p->tick = ++process_tick; | |
6a09a33b | 4793 | pset_status (p, Qfailed); |
f30d612a | 4794 | } |
4740825c KS |
4795 | } |
4796 | #endif /* HAVE_PTYS */ | |
5063c0e1 TN |
4797 | /* If we can detect process termination, don't consider the |
4798 | process gone just because its pipe is closed. */ | |
d888760c | 4799 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 | 4800 | ; |
d0d6b7c5 JB |
4801 | else |
4802 | { | |
4803 | /* Preserve status of processes already terminated. */ | |
60f0fb11 | 4804 | XPROCESS (proc)->tick = ++process_tick; |
d0d6b7c5 | 4805 | deactivate_process (proc); |
6bfd98e7 | 4806 | if (XPROCESS (proc)->raw_status_new) |
d0d6b7c5 | 4807 | update_status (XPROCESS (proc)); |
4d2b044c | 4808 | if (EQ (XPROCESS (proc)->status, Qrun)) |
6a09a33b PE |
4809 | pset_status (XPROCESS (proc), |
4810 | list2 (Qexit, make_number (256))); | |
d0d6b7c5 JB |
4811 | } |
4812 | } | |
177c0ea7 | 4813 | #ifdef NON_BLOCKING_CONNECT |
3fad2ad2 | 4814 | if (FD_ISSET (channel, &Writeok) |
1566f511 | 4815 | && FD_ISSET (channel, &connect_wait_mask)) |
dd2a17ab KS |
4816 | { |
4817 | struct Lisp_Process *p; | |
dd2a17ab KS |
4818 | |
4819 | FD_CLR (channel, &connect_wait_mask); | |
d8a4b27a | 4820 | FD_CLR (channel, &write_mask); |
dd2a17ab | 4821 | if (--num_pending_connects < 0) |
1088b922 | 4822 | emacs_abort (); |
dd2a17ab KS |
4823 | |
4824 | proc = chan_process[channel]; | |
4825 | if (NILP (proc)) | |
4826 | continue; | |
4827 | ||
4828 | p = XPROCESS (proc); | |
4829 | ||
4830 | #ifdef GNU_LINUX | |
4831 | /* getsockopt(,,SO_ERROR,,) is said to hang on some systems. | |
63136da6 | 4832 | So only use it on systems where it is known to work. */ |
dd2a17ab | 4833 | { |
401bf9b4 | 4834 | socklen_t xlen = sizeof (xerrno); |
ed3751c8 | 4835 | if (getsockopt (channel, SOL_SOCKET, SO_ERROR, &xerrno, &xlen)) |
dd2a17ab KS |
4836 | xerrno = errno; |
4837 | } | |
4838 | #else | |
44c887be PJ |
4839 | { |
4840 | struct sockaddr pname; | |
ed3751c8 | 4841 | int pnamelen = sizeof (pname); |
44c887be PJ |
4842 | |
4843 | /* If connection failed, getpeername will fail. */ | |
4844 | xerrno = 0; | |
ed3751c8 | 4845 | if (getpeername (channel, &pname, &pnamelen) < 0) |
44c887be PJ |
4846 | { |
4847 | /* Obtain connect failure code through error slippage. */ | |
4848 | char dummy; | |
dd2a17ab | 4849 | xerrno = errno; |
ed3751c8 | 4850 | if (errno == ENOTCONN && read (channel, &dummy, 1) < 0) |
44c887be PJ |
4851 | xerrno = errno; |
4852 | } | |
4853 | } | |
dd2a17ab KS |
4854 | #endif |
4855 | if (xerrno) | |
4856 | { | |
60f0fb11 | 4857 | p->tick = ++process_tick; |
6a09a33b | 4858 | pset_status (p, list2 (Qfailed, make_number (xerrno))); |
dd2a17ab KS |
4859 | deactivate_process (proc); |
4860 | } | |
4861 | else | |
4862 | { | |
6a09a33b | 4863 | pset_status (p, Qrun); |
dd2a17ab KS |
4864 | /* Execute the sentinel here. If we had relied on |
4865 | status_notify to do it later, it will read input | |
4866 | from the process before calling the sentinel. */ | |
4867 | exec_sentinel (proc, build_string ("open\n")); | |
4d2b044c | 4868 | if (!EQ (p->filter, Qt) && !EQ (p->command, Qt)) |
dd2a17ab | 4869 | { |
60f0fb11 SM |
4870 | FD_SET (p->infd, &input_wait_mask); |
4871 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
dd2a17ab KS |
4872 | } |
4873 | } | |
4874 | } | |
4875 | #endif /* NON_BLOCKING_CONNECT */ | |
1aa8d505 SM |
4876 | } /* End for each file descriptor. */ |
4877 | } /* End while exit conditions not met. */ | |
d0d6b7c5 | 4878 | |
2beb96f9 | 4879 | unbind_to (count, Qnil); |
d430ee71 | 4880 | |
ffd56f97 JB |
4881 | /* If calling from keyboard input, do not quit |
4882 | since we want to return C-g as an input character. | |
4883 | Otherwise, do pending quit if requested. */ | |
b89a415a | 4884 | if (read_kbd >= 0) |
ffd56f97 JB |
4885 | { |
4886 | /* Prevent input_pending from remaining set if we quit. */ | |
4887 | clear_input_pending (); | |
4888 | QUIT; | |
4889 | } | |
efa2a55c | 4890 | |
d0d6b7c5 JB |
4891 | return got_some_input; |
4892 | } | |
4893 | \f | |
3b9a3dfa RS |
4894 | /* Given a list (FUNCTION ARGS...), apply FUNCTION to the ARGS. */ |
4895 | ||
4896 | static Lisp_Object | |
d3da34e0 | 4897 | read_process_output_call (Lisp_Object fun_and_args) |
3b9a3dfa | 4898 | { |
70949dac | 4899 | return apply1 (XCAR (fun_and_args), XCDR (fun_and_args)); |
3b9a3dfa RS |
4900 | } |
4901 | ||
4902 | static Lisp_Object | |
b93aacde | 4903 | read_process_output_error_handler (Lisp_Object error_val) |
3b9a3dfa | 4904 | { |
b93aacde | 4905 | cmd_error_internal (error_val, "error in process filter: "); |
3b9a3dfa RS |
4906 | Vinhibit_quit = Qt; |
4907 | update_echo_area (); | |
833ba342 | 4908 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 4909 | return Qt; |
3b9a3dfa RS |
4910 | } |
4911 | ||
1aa8d505 SM |
4912 | static void |
4913 | read_and_dispose_of_process_output (struct Lisp_Process *p, char *chars, | |
4914 | ssize_t nbytes, | |
4915 | struct coding_system *coding); | |
4916 | ||
d0d6b7c5 JB |
4917 | /* Read pending output from the process channel, |
4918 | starting with our buffered-ahead character if we have one. | |
0fa1789e | 4919 | Yield number of decoded characters read. |
d0d6b7c5 | 4920 | |
116c423c | 4921 | This function reads at most 4096 characters. |
d0d6b7c5 | 4922 | If you want to read all available subprocess output, |
0fa1789e KH |
4923 | you must call it repeatedly until it returns zero. |
4924 | ||
4925 | The characters read are decoded according to PROC's coding-system | |
4926 | for decoding. */ | |
d0d6b7c5 | 4927 | |
ff6daed3 | 4928 | static int |
d3da34e0 | 4929 | read_process_output (Lisp_Object proc, register int channel) |
d0d6b7c5 | 4930 | { |
368f4090 | 4931 | register ssize_t nbytes; |
d0d6b7c5 | 4932 | char *chars; |
d0d6b7c5 | 4933 | register struct Lisp_Process *p = XPROCESS (proc); |
c7580538 | 4934 | struct coding_system *coding = proc_decode_coding_system[channel]; |
60f0fb11 | 4935 | int carryover = p->decoding_carryover; |
116c423c | 4936 | int readmax = 4096; |
d311d28c | 4937 | ptrdiff_t count = SPECPDL_INDEX (); |
3a4fa2f2 | 4938 | Lisp_Object odeactivate; |
d0d6b7c5 | 4939 | |
38182d90 | 4940 | chars = alloca (carryover + readmax); |
e7fbaa65 KH |
4941 | if (carryover) |
4942 | /* See the comment above. */ | |
4d2b044c | 4943 | memcpy (chars, SDATA (p->decoding_buf), carryover); |
0fa1789e | 4944 | |
e690ca94 KS |
4945 | #ifdef DATAGRAM_SOCKETS |
4946 | /* We have a working select, so proc_buffered_char is always -1. */ | |
4947 | if (DATAGRAM_CHAN_P (channel)) | |
4948 | { | |
401bf9b4 | 4949 | socklen_t len = datagram_address[channel].len; |
39b1da20 | 4950 | nbytes = recvfrom (channel, chars + carryover, readmax, |
e690ca94 KS |
4951 | 0, datagram_address[channel].sa, &len); |
4952 | } | |
4953 | else | |
4954 | #endif | |
6b61353c | 4955 | { |
908589fd | 4956 | bool buffered = proc_buffered_char[channel] >= 0; |
82eaa333 PE |
4957 | if (buffered) |
4958 | { | |
4959 | chars[carryover] = proc_buffered_char[channel]; | |
4960 | proc_buffered_char[channel] = -1; | |
4961 | } | |
8af55556 | 4962 | #ifdef HAVE_GNUTLS |
959ad23f AS |
4963 | if (p->gnutls_p) |
4964 | nbytes = emacs_gnutls_read (p, chars + carryover + buffered, | |
82eaa333 | 4965 | readmax - buffered); |
8af55556 TZ |
4966 | else |
4967 | #endif | |
82eaa333 PE |
4968 | nbytes = emacs_read (channel, chars + carryover + buffered, |
4969 | readmax - buffered); | |
6b61353c | 4970 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 4971 | if (nbytes > 0 && p->adaptive_read_buffering) |
6b61353c | 4972 | { |
60f0fb11 | 4973 | int delay = p->read_output_delay; |
6b61353c KH |
4974 | if (nbytes < 256) |
4975 | { | |
4976 | if (delay < READ_OUTPUT_DELAY_MAX_MAX) | |
4977 | { | |
4978 | if (delay == 0) | |
4979 | process_output_delay_count++; | |
4980 | delay += READ_OUTPUT_DELAY_INCREMENT * 2; | |
4981 | } | |
4982 | } | |
82eaa333 | 4983 | else if (delay > 0 && nbytes == readmax - buffered) |
6b61353c KH |
4984 | { |
4985 | delay -= READ_OUTPUT_DELAY_INCREMENT; | |
4986 | if (delay == 0) | |
4987 | process_output_delay_count--; | |
4988 | } | |
60f0fb11 | 4989 | p->read_output_delay = delay; |
6b61353c KH |
4990 | if (delay) |
4991 | { | |
60f0fb11 | 4992 | p->read_output_skip = 1; |
6b61353c KH |
4993 | process_output_skip = 1; |
4994 | } | |
4995 | } | |
4996 | #endif | |
fe07cdfa PE |
4997 | nbytes += buffered; |
4998 | nbytes += buffered && nbytes <= 0; | |
d0d6b7c5 | 4999 | } |
d0d6b7c5 | 5000 | |
60f0fb11 | 5001 | p->decoding_carryover = 0; |
ca65341e | 5002 | |
ed7a4b2d | 5003 | /* At this point, NBYTES holds number of bytes just received |
0fa1789e | 5004 | (including the one in proc_buffered_char[channel]). */ |
de7fbd09 KH |
5005 | if (nbytes <= 0) |
5006 | { | |
5007 | if (nbytes < 0 || coding->mode & CODING_MODE_LAST_BLOCK) | |
5008 | return nbytes; | |
5009 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
5010 | } | |
d0d6b7c5 | 5011 | |
1d2fc612 | 5012 | /* Now set NBYTES how many bytes we must decode. */ |
e7fbaa65 | 5013 | nbytes += carryover; |
0fa1789e | 5014 | |
3a4fa2f2 SM |
5015 | odeactivate = Vdeactivate_mark; |
5016 | /* There's no good reason to let process filters change the current | |
5017 | buffer, and many callers of accept-process-output, sit-for, and | |
5018 | friends don't expect current-buffer to be changed from under them. */ | |
66322887 | 5019 | record_unwind_current_buffer (); |
3a4fa2f2 | 5020 | |
1aa8d505 SM |
5021 | read_and_dispose_of_process_output (p, chars, nbytes, coding); |
5022 | ||
5023 | /* Handling the process output should not deactivate the mark. */ | |
5024 | Vdeactivate_mark = odeactivate; | |
5025 | ||
5026 | unbind_to (count, Qnil); | |
5027 | return nbytes; | |
5028 | } | |
5029 | ||
5030 | static void | |
5031 | read_and_dispose_of_process_output (struct Lisp_Process *p, char *chars, | |
5032 | ssize_t nbytes, | |
5033 | struct coding_system *coding) | |
5034 | { | |
5035 | Lisp_Object outstream = p->filter; | |
5036 | Lisp_Object text; | |
5037 | bool outer_running_asynch_code = running_asynch_code; | |
5038 | int waiting = waiting_for_user_input_p; | |
30c78175 | 5039 | |
1aa8d505 SM |
5040 | /* No need to gcpro these, because all we do with them later |
5041 | is test them for EQness, and none of them should be a string. */ | |
aba7731a | 5042 | #if 0 |
1aa8d505 SM |
5043 | Lisp_Object obuffer, okeymap; |
5044 | XSETBUFFER (obuffer, current_buffer); | |
5045 | okeymap = BVAR (current_buffer, keymap); | |
aba7731a | 5046 | #endif |
30c78175 | 5047 | |
1aa8d505 SM |
5048 | /* We inhibit quit here instead of just catching it so that |
5049 | hitting ^G when a filter happens to be running won't screw | |
5050 | it up. */ | |
5051 | specbind (Qinhibit_quit, Qt); | |
5052 | specbind (Qlast_nonmenu_event, Qt); | |
4da2f5be | 5053 | |
1aa8d505 SM |
5054 | /* In case we get recursively called, |
5055 | and we already saved the match data nonrecursively, | |
5056 | save the same match data in safely recursive fashion. */ | |
5057 | if (outer_running_asynch_code) | |
5058 | { | |
5059 | Lisp_Object tem; | |
5060 | /* Don't clobber the CURRENT match data, either! */ | |
5061 | tem = Fmatch_data (Qnil, Qnil, Qnil); | |
5062 | restore_search_regs (); | |
5063 | record_unwind_save_match_data (); | |
5064 | Fset_match_data (tem, Qt); | |
5065 | } | |
4da2f5be | 5066 | |
1aa8d505 SM |
5067 | /* For speed, if a search happens within this code, |
5068 | save the match data in a special nonrecursive fashion. */ | |
5069 | running_asynch_code = 1; | |
ed7a4b2d | 5070 | |
1aa8d505 SM |
5071 | decode_coding_c_string (coding, (unsigned char *) chars, nbytes, Qt); |
5072 | text = coding->dst_object; | |
5073 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); | |
5074 | /* A new coding system might be found. */ | |
5075 | if (!EQ (p->decode_coding_system, Vlast_coding_system_used)) | |
5076 | { | |
5077 | pset_decode_coding_system (p, Vlast_coding_system_used); | |
ed7a4b2d | 5078 | |
1aa8d505 SM |
5079 | /* Don't call setup_coding_system for |
5080 | proc_decode_coding_system[channel] here. It is done in | |
5081 | detect_coding called via decode_coding above. */ | |
ed7a4b2d | 5082 | |
1aa8d505 SM |
5083 | /* If a coding system for encoding is not yet decided, we set |
5084 | it as the same as coding-system for decoding. | |
51c6067d | 5085 | |
1aa8d505 SM |
5086 | But, before doing that we must check if |
5087 | proc_encode_coding_system[p->outfd] surely points to a | |
5088 | valid memory because p->outfd will be changed once EOF is | |
5089 | sent to the process. */ | |
5090 | if (NILP (p->encode_coding_system) | |
5091 | && proc_encode_coding_system[p->outfd]) | |
dd8c7a53 | 5092 | { |
1aa8d505 SM |
5093 | pset_encode_coding_system |
5094 | (p, coding_inherit_eol_type (Vlast_coding_system_used, Qnil)); | |
5095 | setup_coding_system (p->encode_coding_system, | |
5096 | proc_encode_coding_system[p->outfd]); | |
dd8c7a53 | 5097 | } |
1aa8d505 | 5098 | } |
d0d6b7c5 | 5099 | |
1aa8d505 SM |
5100 | if (coding->carryover_bytes > 0) |
5101 | { | |
5102 | if (SCHARS (p->decoding_buf) < coding->carryover_bytes) | |
5103 | pset_decoding_buf (p, make_uninit_string (coding->carryover_bytes)); | |
5104 | memcpy (SDATA (p->decoding_buf), coding->carryover, | |
5105 | coding->carryover_bytes); | |
5106 | p->decoding_carryover = coding->carryover_bytes; | |
5107 | } | |
5108 | if (SBYTES (text) > 0) | |
5109 | /* FIXME: It's wrong to wrap or not based on debug-on-error, and | |
5110 | sometimes it's simply wrong to wrap (e.g. when called from | |
5111 | accept-process-output). */ | |
5112 | internal_condition_case_1 (read_process_output_call, | |
6c6f1994 | 5113 | list3 (outstream, make_lisp_proc (p), text), |
1aa8d505 SM |
5114 | !NILP (Vdebug_on_error) ? Qnil : Qerror, |
5115 | read_process_output_error_handler); | |
5116 | ||
5117 | /* If we saved the match data nonrecursively, restore it now. */ | |
5118 | restore_search_regs (); | |
5119 | running_asynch_code = outer_running_asynch_code; | |
5120 | ||
5121 | /* Restore waiting_for_user_input_p as it was | |
5122 | when we were called, in case the filter clobbered it. */ | |
5123 | waiting_for_user_input_p = waiting; | |
bbce7d72 | 5124 | |
7973cfa8 RS |
5125 | #if 0 /* Call record_asynch_buffer_change unconditionally, |
5126 | because we might have changed minor modes or other things | |
5127 | that affect key bindings. */ | |
1aa8d505 SM |
5128 | if (! EQ (Fcurrent_buffer (), obuffer) |
5129 | || ! EQ (current_buffer->keymap, okeymap)) | |
5130 | #endif | |
5131 | /* But do it only if the caller is actually going to read events. | |
5132 | Otherwise there's no need to make him wake up, and it could | |
5133 | cause trouble (for example it would make sit_for return). */ | |
5134 | if (waiting_for_user_input_p == -1) | |
5135 | record_asynch_buffer_change (); | |
5136 | } | |
5137 | ||
5138 | DEFUN ("internal-default-process-filter", Finternal_default_process_filter, | |
5139 | Sinternal_default_process_filter, 2, 2, 0, | |
5140 | doc: /* Function used as default process filter. */) | |
5141 | (Lisp_Object proc, Lisp_Object text) | |
5142 | { | |
5143 | struct Lisp_Process *p; | |
5144 | ptrdiff_t opoint; | |
d0d6b7c5 | 5145 | |
1aa8d505 SM |
5146 | CHECK_PROCESS (proc); |
5147 | p = XPROCESS (proc); | |
5148 | CHECK_STRING (text); | |
5149 | ||
5150 | if (!NILP (p->buffer) && BUFFER_LIVE_P (XBUFFER (p->buffer))) | |
d0d6b7c5 | 5151 | { |
b0310da4 | 5152 | Lisp_Object old_read_only; |
d311d28c PE |
5153 | ptrdiff_t old_begv, old_zv; |
5154 | ptrdiff_t old_begv_byte, old_zv_byte; | |
5155 | ptrdiff_t before, before_byte; | |
5156 | ptrdiff_t opoint_byte; | |
926b7e5e | 5157 | struct buffer *b; |
30c78175 | 5158 | |
4d2b044c | 5159 | Fset_buffer (p->buffer); |
6ec8bbd2 | 5160 | opoint = PT; |
d8a2934e | 5161 | opoint_byte = PT_BYTE; |
4b4deea2 | 5162 | old_read_only = BVAR (current_buffer, read_only); |
12ca5cdf RS |
5163 | old_begv = BEGV; |
5164 | old_zv = ZV; | |
d8a2934e RS |
5165 | old_begv_byte = BEGV_BYTE; |
5166 | old_zv_byte = ZV_BYTE; | |
b0310da4 | 5167 | |
39eb03f1 | 5168 | bset_read_only (current_buffer, Qnil); |
d0d6b7c5 JB |
5169 | |
5170 | /* Insert new output into buffer | |
5171 | at the current end-of-output marker, | |
5172 | thus preserving logical ordering of input and output. */ | |
4d2b044c | 5173 | if (XMARKER (p->mark)->buffer) |
3193acd2 | 5174 | SET_PT_BOTH (clip_to_bounds (BEGV, |
4d2b044c | 5175 | marker_position (p->mark), ZV), |
3193acd2 | 5176 | clip_to_bounds (BEGV_BYTE, |
4d2b044c | 5177 | marker_byte_position (p->mark), |
d8a2934e | 5178 | ZV_BYTE)); |
d0d6b7c5 | 5179 | else |
d8a2934e | 5180 | SET_PT_BOTH (ZV, ZV_BYTE); |
12ca5cdf | 5181 | before = PT; |
d8a2934e | 5182 | before_byte = PT_BYTE; |
b0310da4 JB |
5183 | |
5184 | /* If the output marker is outside of the visible region, save | |
5185 | the restriction and widen. */ | |
6ec8bbd2 | 5186 | if (! (BEGV <= PT && PT <= ZV)) |
b0310da4 JB |
5187 | Fwiden (); |
5188 | ||
d69864bf | 5189 | /* Adjust the multibyteness of TEXT to that of the buffer. */ |
4b4deea2 | 5190 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) |
d69864bf KH |
5191 | != ! STRING_MULTIBYTE (text)) |
5192 | text = (STRING_MULTIBYTE (text) | |
57bb5c37 | 5193 | ? Fstring_as_unibyte (text) |
03f04413 | 5194 | : Fstring_to_multibyte (text)); |
57bb5c37 KH |
5195 | /* Insert before markers in case we are inserting where |
5196 | the buffer's mark is, and the user's next command is Meta-y. */ | |
e430e5ba KH |
5197 | insert_from_string_before_markers (text, 0, 0, |
5198 | SCHARS (text), SBYTES (text), 0); | |
0d023da1 | 5199 | |
926b7e5e GM |
5200 | /* Make sure the process marker's position is valid when the |
5201 | process buffer is changed in the signal_after_change above. | |
5202 | W3 is known to do that. */ | |
4d2b044c DA |
5203 | if (BUFFERP (p->buffer) |
5204 | && (b = XBUFFER (p->buffer), b != current_buffer)) | |
5205 | set_marker_both (p->mark, p->buffer, BUF_PT (b), BUF_PT_BYTE (b)); | |
926b7e5e | 5206 | else |
4d2b044c | 5207 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); |
b0310da4 | 5208 | |
d0d6b7c5 JB |
5209 | update_mode_lines++; |
5210 | ||
12ca5cdf RS |
5211 | /* Make sure opoint and the old restrictions |
5212 | float ahead of any new text just as point would. */ | |
5213 | if (opoint >= before) | |
d8a2934e RS |
5214 | { |
5215 | opoint += PT - before; | |
5216 | opoint_byte += PT_BYTE - before_byte; | |
5217 | } | |
12ca5cdf | 5218 | if (old_begv > before) |
d8a2934e RS |
5219 | { |
5220 | old_begv += PT - before; | |
5221 | old_begv_byte += PT_BYTE - before_byte; | |
5222 | } | |
12ca5cdf | 5223 | if (old_zv >= before) |
d8a2934e RS |
5224 | { |
5225 | old_zv += PT - before; | |
5226 | old_zv_byte += PT_BYTE - before_byte; | |
5227 | } | |
12ca5cdf | 5228 | |
b0310da4 | 5229 | /* If the restriction isn't what it should be, set it. */ |
12ca5cdf RS |
5230 | if (old_begv != BEGV || old_zv != ZV) |
5231 | Fnarrow_to_region (make_number (old_begv), make_number (old_zv)); | |
b0310da4 | 5232 | |
39eb03f1 | 5233 | bset_read_only (current_buffer, old_read_only); |
d8a2934e | 5234 | SET_PT_BOTH (opoint, opoint_byte); |
d0d6b7c5 | 5235 | } |
1aa8d505 | 5236 | return Qnil; |
d0d6b7c5 | 5237 | } |
d0d6b7c5 | 5238 | \f |
1aa8d505 | 5239 | /* Sending data to subprocess. */ |
d0d6b7c5 | 5240 | |
20ca2e94 TN |
5241 | /* In send_process, when a write fails temporarily, |
5242 | wait_reading_process_output is called. It may execute user code, | |
5243 | e.g. timers, that attempts to write new data to the same process. | |
5244 | We must ensure that data is sent in the right order, and not | |
5245 | interspersed half-completed with other writes (Bug#10815). This is | |
5246 | handled by the write_queue element of struct process. It is a list | |
5247 | with each entry having the form | |
5248 | ||
5249 | (string . (offset . length)) | |
5250 | ||
5251 | where STRING is a lisp string, OFFSET is the offset into the | |
5252 | string's byte sequence from which we should begin to send, and | |
5253 | LENGTH is the number of bytes left to send. */ | |
5254 | ||
5255 | /* Create a new entry in write_queue. | |
5256 | INPUT_OBJ should be a buffer, string Qt, or Qnil. | |
5257 | BUF is a pointer to the string sequence of the input_obj or a C | |
5258 | string in case of Qt or Qnil. */ | |
5259 | ||
5260 | static void | |
5261 | write_queue_push (struct Lisp_Process *p, Lisp_Object input_obj, | |
0bce5d9e | 5262 | const char *buf, ptrdiff_t len, bool front) |
20ca2e94 | 5263 | { |
7ea2b339 | 5264 | ptrdiff_t offset; |
20ca2e94 TN |
5265 | Lisp_Object entry, obj; |
5266 | ||
5267 | if (STRINGP (input_obj)) | |
5268 | { | |
5269 | offset = buf - SSDATA (input_obj); | |
5270 | obj = input_obj; | |
5271 | } | |
5272 | else | |
5273 | { | |
5274 | offset = 0; | |
5275 | obj = make_unibyte_string (buf, len); | |
5276 | } | |
5277 | ||
5278 | entry = Fcons (obj, Fcons (make_number (offset), make_number (len))); | |
5279 | ||
5280 | if (front) | |
6a09a33b | 5281 | pset_write_queue (p, Fcons (entry, p->write_queue)); |
20ca2e94 | 5282 | else |
6c6f1994 | 5283 | pset_write_queue (p, nconc2 (p->write_queue, list1 (entry))); |
20ca2e94 TN |
5284 | } |
5285 | ||
5286 | /* Remove the first element in the write_queue of process P, put its | |
0bce5d9e PE |
5287 | contents in OBJ, BUF and LEN, and return true. If the |
5288 | write_queue is empty, return false. */ | |
20ca2e94 | 5289 | |
0bce5d9e | 5290 | static bool |
20ca2e94 | 5291 | write_queue_pop (struct Lisp_Process *p, Lisp_Object *obj, |
7ea2b339 | 5292 | const char **buf, ptrdiff_t *len) |
20ca2e94 TN |
5293 | { |
5294 | Lisp_Object entry, offset_length; | |
7ea2b339 | 5295 | ptrdiff_t offset; |
20ca2e94 | 5296 | |
4d2b044c | 5297 | if (NILP (p->write_queue)) |
20ca2e94 TN |
5298 | return 0; |
5299 | ||
4d2b044c | 5300 | entry = XCAR (p->write_queue); |
6a09a33b | 5301 | pset_write_queue (p, XCDR (p->write_queue)); |
20ca2e94 TN |
5302 | |
5303 | *obj = XCAR (entry); | |
5304 | offset_length = XCDR (entry); | |
5305 | ||
5306 | *len = XINT (XCDR (offset_length)); | |
5307 | offset = XINT (XCAR (offset_length)); | |
7ea2b339 | 5308 | *buf = SSDATA (*obj) + offset; |
20ca2e94 TN |
5309 | |
5310 | return 1; | |
5311 | } | |
5312 | ||
4556b700 RS |
5313 | /* Send some data to process PROC. |
5314 | BUF is the beginning of the data; LEN is the number of characters. | |
a92e4183 KH |
5315 | OBJECT is the Lisp object that the data comes from. If OBJECT is |
5316 | nil or t, it means that the data comes from C string. | |
0fa1789e | 5317 | |
a92e4183 KH |
5318 | If OBJECT is not nil, the data is encoded by PROC's coding-system |
5319 | for encoding before it is sent. | |
1fb0098c GM |
5320 | |
5321 | This function can evaluate Lisp code and can garbage collect. */ | |
4556b700 | 5322 | |
ff6daed3 | 5323 | static void |
4d7e6e51 PE |
5324 | send_process (Lisp_Object proc, const char *buf, ptrdiff_t len, |
5325 | Lisp_Object object) | |
d0d6b7c5 | 5326 | { |
6b61353c | 5327 | struct Lisp_Process *p = XPROCESS (proc); |
368f4090 | 5328 | ssize_t rv; |
0fa1789e | 5329 | struct coding_system *coding; |
6044e593 | 5330 | |
6bfd98e7 | 5331 | if (p->raw_status_new) |
6b61353c | 5332 | update_status (p); |
4d2b044c DA |
5333 | if (! EQ (p->status, Qrun)) |
5334 | error ("Process %s not running", SDATA (p->name)); | |
60f0fb11 | 5335 | if (p->outfd < 0) |
4d2b044c | 5336 | error ("Output file descriptor of %s is closed", SDATA (p->name)); |
0fa1789e | 5337 | |
60f0fb11 | 5338 | coding = proc_encode_coding_system[p->outfd]; |
5bbf78c1 | 5339 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); |
486b111b | 5340 | |
ed7a4b2d KH |
5341 | if ((STRINGP (object) && STRING_MULTIBYTE (object)) |
5342 | || (BUFFERP (object) | |
4b4deea2 | 5343 | && !NILP (BVAR (XBUFFER (object), enable_multibyte_characters))) |
a92e4183 | 5344 | || EQ (object, Qt)) |
278bfdd6 | 5345 | { |
6a09a33b PE |
5346 | pset_encode_coding_system |
5347 | (p, complement_process_encoding_system (p->encode_coding_system)); | |
4d2b044c | 5348 | if (!EQ (Vlast_coding_system_used, p->encode_coding_system)) |
fcaf8878 KH |
5349 | { |
5350 | /* The coding system for encoding was changed to raw-text | |
5351 | because we sent a unibyte text previously. Now we are | |
5352 | sending a multibyte text, thus we must encode it by the | |
5353 | original coding system specified for the current process. | |
5354 | ||
da6062e6 PE |
5355 | Another reason we come here is that the coding system |
5356 | was just complemented and a new one was returned by | |
fcaf8878 | 5357 | complement_process_encoding_system. */ |
4d2b044c DA |
5358 | setup_coding_system (p->encode_coding_system, coding); |
5359 | Vlast_coding_system_used = p->encode_coding_system; | |
fcaf8878 | 5360 | } |
e08bbb84 | 5361 | coding->src_multibyte = 1; |
278bfdd6 KH |
5362 | } |
5363 | else | |
5364 | { | |
a0241d01 | 5365 | coding->src_multibyte = 0; |
a92e4183 KH |
5366 | /* For sending a unibyte text, character code conversion should |
5367 | not take place but EOL conversion should. So, setup raw-text | |
5368 | or one of the subsidiary if we have not yet done it. */ | |
5bbf78c1 | 5369 | if (CODING_REQUIRE_ENCODING (coding)) |
a92e4183 KH |
5370 | { |
5371 | if (CODING_REQUIRE_FLUSHING (coding)) | |
5372 | { | |
5373 | /* But, before changing the coding, we must flush out data. */ | |
5374 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
5375 | send_process (proc, "", 0, Qt); | |
8f924df7 | 5376 | coding->mode &= CODING_MODE_LAST_BLOCK; |
a92e4183 | 5377 | } |
5bbf78c1 KH |
5378 | setup_coding_system (raw_text_coding_system |
5379 | (Vlast_coding_system_used), | |
5380 | coding); | |
e08bbb84 | 5381 | coding->src_multibyte = 0; |
a92e4183 | 5382 | } |
278bfdd6 | 5383 | } |
a4a37e65 KH |
5384 | coding->dst_multibyte = 0; |
5385 | ||
ed7a4b2d | 5386 | if (CODING_REQUIRE_ENCODING (coding)) |
0fa1789e | 5387 | { |
5bbf78c1 | 5388 | coding->dst_object = Qt; |
ed7a4b2d | 5389 | if (BUFFERP (object)) |
0fa1789e | 5390 | { |
d311d28c PE |
5391 | ptrdiff_t from_byte, from, to; |
5392 | ptrdiff_t save_pt, save_pt_byte; | |
5bbf78c1 KH |
5393 | struct buffer *cur = current_buffer; |
5394 | ||
5395 | set_buffer_internal (XBUFFER (object)); | |
5396 | save_pt = PT, save_pt_byte = PT_BYTE; | |
5397 | ||
400a67ff | 5398 | from_byte = PTR_BYTE_POS ((unsigned char *) buf); |
5bbf78c1 KH |
5399 | from = BYTE_TO_CHAR (from_byte); |
5400 | to = BYTE_TO_CHAR (from_byte + len); | |
5401 | TEMP_SET_PT_BOTH (from, from_byte); | |
5402 | encode_coding_object (coding, object, from, from_byte, | |
5403 | to, from_byte + len, Qt); | |
5404 | TEMP_SET_PT_BOTH (save_pt, save_pt_byte); | |
5405 | set_buffer_internal (cur); | |
ed7a4b2d KH |
5406 | } |
5407 | else if (STRINGP (object)) | |
5408 | { | |
550c8289 KH |
5409 | encode_coding_object (coding, object, 0, 0, SCHARS (object), |
5410 | SBYTES (object), Qt); | |
0fa1789e | 5411 | } |
5bbf78c1 | 5412 | else |
452294c2 | 5413 | { |
5bbf78c1 KH |
5414 | coding->dst_object = make_unibyte_string (buf, len); |
5415 | coding->produced = len; | |
452294c2 | 5416 | } |
ed7a4b2d | 5417 | |
e7fbaa65 | 5418 | len = coding->produced; |
347f3cd3 | 5419 | object = coding->dst_object; |
400a67ff | 5420 | buf = SSDATA (object); |
0fa1789e | 5421 | } |
d0d6b7c5 | 5422 | |
4d7e6e51 PE |
5423 | /* If there is already data in the write_queue, put the new data |
5424 | in the back of queue. Otherwise, ignore it. */ | |
5425 | if (!NILP (p->write_queue)) | |
5426 | write_queue_push (p, object, buf, len, 0); | |
20ca2e94 | 5427 | |
4d7e6e51 PE |
5428 | do /* while !NILP (p->write_queue) */ |
5429 | { | |
5430 | ptrdiff_t cur_len = -1; | |
5431 | const char *cur_buf; | |
5432 | Lisp_Object cur_object; | |
20ca2e94 | 5433 | |
4d7e6e51 PE |
5434 | /* If write_queue is empty, ignore it. */ |
5435 | if (!write_queue_pop (p, &cur_object, &cur_buf, &cur_len)) | |
0daad115 | 5436 | { |
4d7e6e51 PE |
5437 | cur_len = len; |
5438 | cur_buf = buf; | |
5439 | cur_object = object; | |
5440 | } | |
20ca2e94 | 5441 | |
4d7e6e51 PE |
5442 | while (cur_len > 0) |
5443 | { | |
5444 | /* Send this batch, using one or more write calls. */ | |
5445 | ptrdiff_t written = 0; | |
5446 | int outfd = p->outfd; | |
5447 | #ifdef DATAGRAM_SOCKETS | |
5448 | if (DATAGRAM_CHAN_P (outfd)) | |
20ca2e94 | 5449 | { |
4d7e6e51 PE |
5450 | rv = sendto (outfd, cur_buf, cur_len, |
5451 | 0, datagram_address[outfd].sa, | |
5452 | datagram_address[outfd].len); | |
908589fd | 5453 | if (rv >= 0) |
4d7e6e51 PE |
5454 | written = rv; |
5455 | else if (errno == EMSGSIZE) | |
4e604a5d | 5456 | report_file_error ("Sending datagram", proc); |
20ca2e94 | 5457 | } |
4d7e6e51 | 5458 | else |
e690ca94 | 5459 | #endif |
4d7e6e51 | 5460 | { |
8af55556 | 5461 | #ifdef HAVE_GNUTLS |
4d7e6e51 PE |
5462 | if (p->gnutls_p) |
5463 | written = emacs_gnutls_write (p, cur_buf, cur_len); | |
5464 | else | |
8af55556 | 5465 | #endif |
4ebbdd67 | 5466 | written = emacs_write_sig (outfd, cur_buf, cur_len); |
4d7e6e51 | 5467 | rv = (written ? 0 : -1); |
6b61353c | 5468 | #ifdef ADAPTIVE_READ_BUFFERING |
4d7e6e51 PE |
5469 | if (p->read_output_delay > 0 |
5470 | && p->adaptive_read_buffering == 1) | |
5471 | { | |
5472 | p->read_output_delay = 0; | |
5473 | process_output_delay_count--; | |
5474 | p->read_output_skip = 0; | |
6b61353c | 5475 | } |
4d7e6e51 PE |
5476 | #endif |
5477 | } | |
4556b700 | 5478 | |
4d7e6e51 PE |
5479 | if (rv < 0) |
5480 | { | |
22626a85 | 5481 | if (errno == EAGAIN |
d0d6b7c5 | 5482 | #ifdef EWOULDBLOCK |
4d7e6e51 | 5483 | || errno == EWOULDBLOCK |
d0d6b7c5 | 5484 | #endif |
4d7e6e51 PE |
5485 | ) |
5486 | /* Buffer is full. Wait, accepting input; | |
5487 | that may allow the program | |
5488 | to finish doing output and read more. */ | |
5489 | { | |
3433b6bd | 5490 | #ifdef BROKEN_PTY_READ_AFTER_EAGAIN |
4d7e6e51 PE |
5491 | /* A gross hack to work around a bug in FreeBSD. |
5492 | In the following sequence, read(2) returns | |
5493 | bogus data: | |
5494 | ||
5495 | write(2) 1022 bytes | |
5496 | write(2) 954 bytes, get EAGAIN | |
5497 | read(2) 1024 bytes in process_read_output | |
5498 | read(2) 11 bytes in process_read_output | |
5499 | ||
5500 | That is, read(2) returns more bytes than have | |
5501 | ever been written successfully. The 1033 bytes | |
5502 | read are the 1022 bytes written successfully | |
5503 | after processing (for example with CRs added if | |
5504 | the terminal is set up that way which it is | |
5505 | here). The same bytes will be seen again in a | |
5506 | later read(2), without the CRs. */ | |
5507 | ||
5508 | if (errno == EAGAIN) | |
5509 | { | |
5510 | int flags = FWRITE; | |
5511 | ioctl (p->outfd, TIOCFLUSH, &flags); | |
5512 | } | |
3433b6bd | 5513 | #endif /* BROKEN_PTY_READ_AFTER_EAGAIN */ |
177c0ea7 | 5514 | |
4d7e6e51 PE |
5515 | /* Put what we should have written in wait_queue. */ |
5516 | write_queue_push (p, cur_object, cur_buf, cur_len, 1); | |
5517 | wait_reading_process_output (0, 20 * 1000 * 1000, | |
5518 | 0, 0, Qnil, NULL, 0); | |
5519 | /* Reread queue, to see what is left. */ | |
5520 | break; | |
0daad115 | 5521 | } |
4d7e6e51 PE |
5522 | else if (errno == EPIPE) |
5523 | { | |
5524 | p->raw_status_new = 0; | |
5525 | pset_status (p, list2 (Qexit, make_number (256))); | |
5526 | p->tick = ++process_tick; | |
5527 | deactivate_process (proc); | |
5528 | error ("process %s no longer connected to pipe; closed it", | |
5529 | SDATA (p->name)); | |
5530 | } | |
5531 | else | |
5532 | /* This is a real error. */ | |
4e604a5d | 5533 | report_file_error ("Writing to process", proc); |
0daad115 | 5534 | } |
4d7e6e51 PE |
5535 | cur_buf += written; |
5536 | cur_len -= written; | |
0daad115 | 5537 | } |
d0d6b7c5 | 5538 | } |
4d7e6e51 | 5539 | while (!NILP (p->write_queue)); |
d0d6b7c5 JB |
5540 | } |
5541 | ||
5542 | DEFUN ("process-send-region", Fprocess_send_region, Sprocess_send_region, | |
fdb82f93 PJ |
5543 | 3, 3, 0, |
5544 | doc: /* Send current contents of region as input to PROCESS. | |
5545 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5546 | nil, indicating the current buffer's process. | |
5547 | Called from program, takes three arguments, PROCESS, START and END. | |
5548 | If the region is more than 500 characters long, | |
5549 | it is sent in several bunches. This may happen even for shorter regions. | |
5550 | Output from processes can arrive in between bunches. */) | |
5842a27b | 5551 | (Lisp_Object process, Lisp_Object start, Lisp_Object end) |
d0d6b7c5 | 5552 | { |
13002885 DA |
5553 | Lisp_Object proc = get_process (process); |
5554 | ptrdiff_t start_byte, end_byte; | |
d0d6b7c5 | 5555 | |
d0d6b7c5 | 5556 | validate_region (&start, &end); |
1b234f64 | 5557 | |
13002885 DA |
5558 | start_byte = CHAR_TO_BYTE (XINT (start)); |
5559 | end_byte = CHAR_TO_BYTE (XINT (end)); | |
5560 | ||
1b234f64 | 5561 | if (XINT (start) < GPT && XINT (end) > GPT) |
13002885 | 5562 | move_gap_both (XINT (start), start_byte); |
1b234f64 | 5563 | |
e454145b | 5564 | send_process (proc, (char *) BYTE_POS_ADDR (start_byte), |
13002885 | 5565 | end_byte - start_byte, Fcurrent_buffer ()); |
1b234f64 | 5566 | |
d0d6b7c5 JB |
5567 | return Qnil; |
5568 | } | |
5569 | ||
5570 | DEFUN ("process-send-string", Fprocess_send_string, Sprocess_send_string, | |
fdb82f93 PJ |
5571 | 2, 2, 0, |
5572 | doc: /* Send PROCESS the contents of STRING as input. | |
5573 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5574 | nil, indicating the current buffer's process. | |
5575 | If STRING is more than 500 characters long, | |
5576 | it is sent in several bunches. This may happen even for shorter strings. | |
5577 | Output from processes can arrive in between bunches. */) | |
5842a27b | 5578 | (Lisp_Object process, Lisp_Object string) |
d0d6b7c5 JB |
5579 | { |
5580 | Lisp_Object proc; | |
b7826503 | 5581 | CHECK_STRING (string); |
d0d6b7c5 | 5582 | proc = get_process (process); |
400a67ff | 5583 | send_process (proc, SSDATA (string), |
1b234f64 | 5584 | SBYTES (string), string); |
d0d6b7c5 JB |
5585 | return Qnil; |
5586 | } | |
5587 | \f | |
16782258 JD |
5588 | /* Return the foreground process group for the tty/pty that |
5589 | the process P uses. */ | |
dde14581 | 5590 | static pid_t |
d3da34e0 | 5591 | emacs_get_tty_pgrp (struct Lisp_Process *p) |
16782258 | 5592 | { |
dde14581 | 5593 | pid_t gid = -1; |
16782258 | 5594 | |
f3d9532b | 5595 | #ifdef TIOCGPGRP |
4d2b044c | 5596 | if (ioctl (p->infd, TIOCGPGRP, &gid) == -1 && ! NILP (p->tty_name)) |
16782258 JD |
5597 | { |
5598 | int fd; | |
5599 | /* Some OS:es (Solaris 8/9) does not allow TIOCGPGRP from the | |
5600 | master side. Try the slave side. */ | |
4d2b044c | 5601 | fd = emacs_open (SSDATA (p->tty_name), O_RDONLY, 0); |
16782258 JD |
5602 | |
5603 | if (fd != -1) | |
5604 | { | |
5605 | ioctl (fd, TIOCGPGRP, &gid); | |
5606 | emacs_close (fd); | |
5607 | } | |
5608 | } | |
5609 | #endif /* defined (TIOCGPGRP ) */ | |
5610 | ||
5611 | return gid; | |
5612 | } | |
5613 | ||
b81ea5ef RS |
5614 | DEFUN ("process-running-child-p", Fprocess_running_child_p, |
5615 | Sprocess_running_child_p, 0, 1, 0, | |
fdb82f93 PJ |
5616 | doc: /* Return t if PROCESS has given the terminal to a child. |
5617 | If the operating system does not make it possible to find out, | |
5618 | return t unconditionally. */) | |
5842a27b | 5619 | (Lisp_Object process) |
b81ea5ef RS |
5620 | { |
5621 | /* Initialize in case ioctl doesn't exist or gives an error, | |
5622 | in a way that will cause returning t. */ | |
dde14581 | 5623 | pid_t gid; |
b81ea5ef RS |
5624 | Lisp_Object proc; |
5625 | struct Lisp_Process *p; | |
5626 | ||
5627 | proc = get_process (process); | |
5628 | p = XPROCESS (proc); | |
5629 | ||
4d2b044c | 5630 | if (!EQ (p->type, Qreal)) |
b81ea5ef | 5631 | error ("Process %s is not a subprocess", |
4d2b044c | 5632 | SDATA (p->name)); |
60f0fb11 | 5633 | if (p->infd < 0) |
b81ea5ef | 5634 | error ("Process %s is not active", |
4d2b044c | 5635 | SDATA (p->name)); |
b81ea5ef | 5636 | |
16782258 | 5637 | gid = emacs_get_tty_pgrp (p); |
b81ea5ef | 5638 | |
6bfd98e7 | 5639 | if (gid == p->pid) |
b81ea5ef RS |
5640 | return Qnil; |
5641 | return Qt; | |
5642 | } | |
5643 | \f | |
d0d6b7c5 | 5644 | /* send a signal number SIGNO to PROCESS. |
b81ea5ef RS |
5645 | If CURRENT_GROUP is t, that means send to the process group |
5646 | that currently owns the terminal being used to communicate with PROCESS. | |
d0d6b7c5 | 5647 | This is used for various commands in shell mode. |
b81ea5ef RS |
5648 | If CURRENT_GROUP is lambda, that means send to the process group |
5649 | that currently owns the terminal, but only if it is NOT the shell itself. | |
5650 | ||
0bce5d9e | 5651 | If NOMSG is false, insert signal-announcements into process's buffers |
b0310da4 JB |
5652 | right away. |
5653 | ||
5654 | If we can, we try to signal PROCESS by sending control characters | |
e333e864 | 5655 | down the pty. This allows us to signal inferiors who have changed |
d983a10b | 5656 | their uid, for which kill would return an EPERM error. */ |
d0d6b7c5 | 5657 | |
f9738840 | 5658 | static void |
d3da34e0 | 5659 | process_send_signal (Lisp_Object process, int signo, Lisp_Object current_group, |
0bce5d9e | 5660 | bool nomsg) |
d0d6b7c5 JB |
5661 | { |
5662 | Lisp_Object proc; | |
0bce5d9e | 5663 | struct Lisp_Process *p; |
dde14581 | 5664 | pid_t gid; |
0bce5d9e | 5665 | bool no_pgrp = 0; |
d0d6b7c5 JB |
5666 | |
5667 | proc = get_process (process); | |
5668 | p = XPROCESS (proc); | |
5669 | ||
4d2b044c | 5670 | if (!EQ (p->type, Qreal)) |
d0d6b7c5 | 5671 | error ("Process %s is not a subprocess", |
4d2b044c | 5672 | SDATA (p->name)); |
60f0fb11 | 5673 | if (p->infd < 0) |
d0d6b7c5 | 5674 | error ("Process %s is not active", |
4d2b044c | 5675 | SDATA (p->name)); |
d0d6b7c5 | 5676 | |
60f0fb11 | 5677 | if (!p->pty_flag) |
d0d6b7c5 JB |
5678 | current_group = Qnil; |
5679 | ||
d0d6b7c5 | 5680 | /* If we are using pgrps, get a pgrp number and make it negative. */ |
2af70a0c RS |
5681 | if (NILP (current_group)) |
5682 | /* Send the signal to the shell's process group. */ | |
6bfd98e7 | 5683 | gid = p->pid; |
2af70a0c | 5684 | else |
d0d6b7c5 | 5685 | { |
b0310da4 | 5686 | #ifdef SIGNALS_VIA_CHARACTERS |
d0d6b7c5 JB |
5687 | /* If possible, send signals to the entire pgrp |
5688 | by sending an input character to it. */ | |
b0310da4 | 5689 | |
6be429b1 | 5690 | struct termios t; |
7f916a36 RS |
5691 | cc_t *sig_char = NULL; |
5692 | ||
60f0fb11 | 5693 | tcgetattr (p->infd, &t); |
6be429b1 JB |
5694 | |
5695 | switch (signo) | |
5696 | { | |
5697 | case SIGINT: | |
7f916a36 RS |
5698 | sig_char = &t.c_cc[VINTR]; |
5699 | break; | |
6be429b1 JB |
5700 | |
5701 | case SIGQUIT: | |
7f916a36 RS |
5702 | sig_char = &t.c_cc[VQUIT]; |
5703 | break; | |
6be429b1 JB |
5704 | |
5705 | case SIGTSTP: | |
d0adf46f | 5706 | #if defined (VSWTCH) && !defined (PREFER_VSUSP) |
7f916a36 | 5707 | sig_char = &t.c_cc[VSWTCH]; |
6be429b1 | 5708 | #else |
7f916a36 | 5709 | sig_char = &t.c_cc[VSUSP]; |
6be429b1 | 5710 | #endif |
7f916a36 | 5711 | break; |
6be429b1 JB |
5712 | } |
5713 | ||
ca4313d5 | 5714 | if (sig_char && *sig_char != CDISABLE) |
f1c206fc | 5715 | { |
f990b4e5 | 5716 | send_process (proc, (char *) sig_char, 1, Qnil); |
f1c206fc RS |
5717 | return; |
5718 | } | |
5719 | /* If we can't send the signal with a character, | |
5720 | fall through and send it another way. */ | |
f1c206fc RS |
5721 | |
5722 | /* The code above may fall through if it can't | |
5723 | handle the signal. */ | |
20505336 | 5724 | #endif /* defined (SIGNALS_VIA_CHARACTERS) */ |
d0d6b7c5 | 5725 | |
177c0ea7 | 5726 | #ifdef TIOCGPGRP |
2af70a0c | 5727 | /* Get the current pgrp using the tty itself, if we have that. |
d0d6b7c5 JB |
5728 | Otherwise, use the pty to get the pgrp. |
5729 | On pfa systems, saka@pfu.fujitsu.co.JP writes: | |
b0310da4 JB |
5730 | "TIOCGPGRP symbol defined in sys/ioctl.h at E50. |
5731 | But, TIOCGPGRP does not work on E50 ;-P works fine on E60" | |
d0d6b7c5 JB |
5732 | His patch indicates that if TIOCGPGRP returns an error, then |
5733 | we should just assume that p->pid is also the process group id. */ | |
d0d6b7c5 | 5734 | |
16782258 | 5735 | gid = emacs_get_tty_pgrp (p); |
f3d9532b | 5736 | |
16782258 JD |
5737 | if (gid == -1) |
5738 | /* If we can't get the information, assume | |
5739 | the shell owns the tty. */ | |
6bfd98e7 | 5740 | gid = p->pid; |
2af70a0c RS |
5741 | |
5742 | /* It is not clear whether anything really can set GID to -1. | |
5743 | Perhaps on some system one of those ioctls can or could do so. | |
5744 | Or perhaps this is vestigial. */ | |
d0d6b7c5 JB |
5745 | if (gid == -1) |
5746 | no_pgrp = 1; | |
b0310da4 | 5747 | #else /* ! defined (TIOCGPGRP ) */ |
301c3fe4 JB |
5748 | /* Can't select pgrps on this system, so we know that |
5749 | the child itself heads the pgrp. */ | |
6bfd98e7 | 5750 | gid = p->pid; |
301c3fe4 | 5751 | #endif /* ! defined (TIOCGPGRP ) */ |
b81ea5ef RS |
5752 | |
5753 | /* If current_group is lambda, and the shell owns the terminal, | |
5754 | don't send any signal. */ | |
6bfd98e7 | 5755 | if (EQ (current_group, Qlambda) && gid == p->pid) |
b81ea5ef | 5756 | return; |
d0d6b7c5 | 5757 | } |
d0d6b7c5 JB |
5758 | |
5759 | switch (signo) | |
5760 | { | |
5761 | #ifdef SIGCONT | |
5762 | case SIGCONT: | |
6bfd98e7 | 5763 | p->raw_status_new = 0; |
6a09a33b | 5764 | pset_status (p, Qrun); |
60f0fb11 | 5765 | p->tick = ++process_tick; |
d0d6b7c5 | 5766 | if (!nomsg) |
e42bdf01 CY |
5767 | { |
5768 | status_notify (NULL); | |
5769 | redisplay_preserve_echo_area (13); | |
5770 | } | |
d0d6b7c5 | 5771 | break; |
301c3fe4 | 5772 | #endif /* ! defined (SIGCONT) */ |
d0d6b7c5 | 5773 | case SIGINT: |
d0d6b7c5 | 5774 | case SIGQUIT: |
d0d6b7c5 | 5775 | case SIGKILL: |
60f0fb11 | 5776 | flush_pending_output (p->infd); |
d0d6b7c5 JB |
5777 | break; |
5778 | } | |
5779 | ||
5780 | /* If we don't have process groups, send the signal to the immediate | |
5781 | subprocess. That isn't really right, but it's better than any | |
5782 | obvious alternative. */ | |
5783 | if (no_pgrp) | |
5784 | { | |
6bfd98e7 | 5785 | kill (p->pid, signo); |
d0d6b7c5 JB |
5786 | return; |
5787 | } | |
5788 | ||
5789 | /* gid may be a pid, or minus a pgrp's number */ | |
5790 | #ifdef TIOCSIGSEND | |
5791 | if (!NILP (current_group)) | |
16782258 | 5792 | { |
60f0fb11 | 5793 | if (ioctl (p->infd, TIOCSIGSEND, signo) == -1) |
d983a10b | 5794 | kill (-gid, signo); |
16782258 | 5795 | } |
d0d6b7c5 JB |
5796 | else |
5797 | { | |
6bfd98e7 | 5798 | gid = - p->pid; |
d0d6b7c5 JB |
5799 | kill (gid, signo); |
5800 | } | |
301c3fe4 | 5801 | #else /* ! defined (TIOCSIGSEND) */ |
d983a10b | 5802 | kill (-gid, signo); |
301c3fe4 | 5803 | #endif /* ! defined (TIOCSIGSEND) */ |
d0d6b7c5 JB |
5804 | } |
5805 | ||
5806 | DEFUN ("interrupt-process", Finterrupt_process, Sinterrupt_process, 0, 2, 0, | |
fdb82f93 PJ |
5807 | doc: /* Interrupt process PROCESS. |
5808 | PROCESS may be a process, a buffer, or the name of a process or buffer. | |
f3d9532b | 5809 | No arg or nil means current buffer's process. |
fdb82f93 PJ |
5810 | Second arg CURRENT-GROUP non-nil means send signal to |
5811 | the current process-group of the process's controlling terminal | |
5812 | rather than to the process's own process group. | |
5813 | If the process is a shell, this means interrupt current subjob | |
5814 | rather than the shell. | |
5815 | ||
5816 | If CURRENT-GROUP is `lambda', and if the shell owns the terminal, | |
5817 | don't send the signal. */) | |
5842a27b | 5818 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5819 | { |
5820 | process_send_signal (process, SIGINT, current_group, 0); | |
5821 | return process; | |
5822 | } | |
5823 | ||
5824 | DEFUN ("kill-process", Fkill_process, Skill_process, 0, 2, 0, | |
fdb82f93 PJ |
5825 | doc: /* Kill process PROCESS. May be process or name of one. |
5826 | See function `interrupt-process' for more details on usage. */) | |
5842a27b | 5827 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5828 | { |
5829 | process_send_signal (process, SIGKILL, current_group, 0); | |
5830 | return process; | |
5831 | } | |
5832 | ||
5833 | DEFUN ("quit-process", Fquit_process, Squit_process, 0, 2, 0, | |
fdb82f93 PJ |
5834 | doc: /* Send QUIT signal to process PROCESS. May be process or name of one. |
5835 | See function `interrupt-process' for more details on usage. */) | |
5842a27b | 5836 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5837 | { |
5838 | process_send_signal (process, SIGQUIT, current_group, 0); | |
5839 | return process; | |
5840 | } | |
5841 | ||
5842 | DEFUN ("stop-process", Fstop_process, Sstop_process, 0, 2, 0, | |
fdb82f93 | 5843 | doc: /* Stop process PROCESS. May be process or name of one. |
177c0ea7 | 5844 | See function `interrupt-process' for more details on usage. |
d888760c GM |
5845 | If PROCESS is a network or serial process, inhibit handling of incoming |
5846 | traffic. */) | |
5842a27b | 5847 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 | 5848 | { |
d888760c | 5849 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
5850 | { |
5851 | struct Lisp_Process *p; | |
177c0ea7 | 5852 | |
e690ca94 | 5853 | p = XPROCESS (process); |
4d2b044c | 5854 | if (NILP (p->command) |
60f0fb11 | 5855 | && p->infd >= 0) |
e690ca94 | 5856 | { |
60f0fb11 SM |
5857 | FD_CLR (p->infd, &input_wait_mask); |
5858 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
e690ca94 | 5859 | } |
6a09a33b | 5860 | pset_command (p, Qt); |
e690ca94 KS |
5861 | return process; |
5862 | } | |
d0d6b7c5 | 5863 | #ifndef SIGTSTP |
a9a73d6c | 5864 | error ("No SIGTSTP support"); |
d0d6b7c5 JB |
5865 | #else |
5866 | process_send_signal (process, SIGTSTP, current_group, 0); | |
5867 | #endif | |
5868 | return process; | |
5869 | } | |
5870 | ||
5871 | DEFUN ("continue-process", Fcontinue_process, Scontinue_process, 0, 2, 0, | |
fdb82f93 | 5872 | doc: /* Continue process PROCESS. May be process or name of one. |
177c0ea7 | 5873 | See function `interrupt-process' for more details on usage. |
d888760c GM |
5874 | If PROCESS is a network or serial process, resume handling of incoming |
5875 | traffic. */) | |
5842a27b | 5876 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 | 5877 | { |
d888760c | 5878 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
5879 | { |
5880 | struct Lisp_Process *p; | |
5881 | ||
5882 | p = XPROCESS (process); | |
4d2b044c | 5883 | if (EQ (p->command, Qt) |
60f0fb11 | 5884 | && p->infd >= 0 |
4d2b044c | 5885 | && (!EQ (p->filter, Qt) || EQ (p->status, Qlisten))) |
e690ca94 | 5886 | { |
60f0fb11 SM |
5887 | FD_SET (p->infd, &input_wait_mask); |
5888 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
d888760c GM |
5889 | #ifdef WINDOWSNT |
5890 | if (fd_info[ p->infd ].flags & FILE_SERIAL) | |
5891 | PurgeComm (fd_info[ p->infd ].hnd, PURGE_RXABORT | PURGE_RXCLEAR); | |
a7ebc409 | 5892 | #else /* not WINDOWSNT */ |
d888760c | 5893 | tcflush (p->infd, TCIFLUSH); |
a7ebc409 | 5894 | #endif /* not WINDOWSNT */ |
e690ca94 | 5895 | } |
6a09a33b | 5896 | pset_command (p, Qnil); |
e690ca94 KS |
5897 | return process; |
5898 | } | |
d0d6b7c5 JB |
5899 | #ifdef SIGCONT |
5900 | process_send_signal (process, SIGCONT, current_group, 0); | |
5901 | #else | |
a9a73d6c | 5902 | error ("No SIGCONT support"); |
d0d6b7c5 JB |
5903 | #endif |
5904 | return process; | |
5905 | } | |
5906 | ||
d983a10b PE |
5907 | /* Return the integer value of the signal whose abbreviation is ABBR, |
5908 | or a negative number if there is no such signal. */ | |
5909 | static int | |
5910 | abbr_to_signal (char const *name) | |
5911 | { | |
5912 | int i, signo; | |
5913 | char sigbuf[20]; /* Large enough for all valid signal abbreviations. */ | |
5914 | ||
5915 | if (!strncmp (name, "SIG", 3) || !strncmp (name, "sig", 3)) | |
5916 | name += 3; | |
5917 | ||
5918 | for (i = 0; i < sizeof sigbuf; i++) | |
5919 | { | |
5920 | sigbuf[i] = c_toupper (name[i]); | |
5921 | if (! sigbuf[i]) | |
5922 | return str2sig (sigbuf, &signo) == 0 ? signo : -1; | |
5923 | } | |
5924 | ||
5925 | return -1; | |
5926 | } | |
5927 | ||
d0d6b7c5 | 5928 | DEFUN ("signal-process", Fsignal_process, Ssignal_process, |
cdd5ea86 KS |
5929 | 2, 2, "sProcess (name or number): \nnSignal code: ", |
5930 | doc: /* Send PROCESS the signal with code SIGCODE. | |
648f6edf | 5931 | PROCESS may also be a number specifying the process id of the |
cdd5ea86 KS |
5932 | process to signal; in this case, the process need not be a child of |
5933 | this Emacs. | |
fdb82f93 | 5934 | SIGCODE may be an integer, or a symbol whose name is a signal name. */) |
5842a27b | 5935 | (Lisp_Object process, Lisp_Object sigcode) |
d0d6b7c5 | 5936 | { |
6bfd98e7 | 5937 | pid_t pid; |
d983a10b | 5938 | int signo; |
cdd5ea86 | 5939 | |
cdd5ea86 KS |
5940 | if (STRINGP (process)) |
5941 | { | |
d311d28c PE |
5942 | Lisp_Object tem = Fget_process (process); |
5943 | if (NILP (tem)) | |
cdd5ea86 | 5944 | { |
d44287d4 PE |
5945 | Lisp_Object process_number = |
5946 | string_to_number (SSDATA (process), 10, 1); | |
5947 | if (INTEGERP (process_number) || FLOATP (process_number)) | |
5948 | tem = process_number; | |
cdd5ea86 KS |
5949 | } |
5950 | process = tem; | |
5951 | } | |
d44287d4 | 5952 | else if (!NUMBERP (process)) |
cdd5ea86 | 5953 | process = get_process (process); |
177c0ea7 | 5954 | |
cdd5ea86 KS |
5955 | if (NILP (process)) |
5956 | return process; | |
5957 | ||
d83cf4cc PE |
5958 | if (NUMBERP (process)) |
5959 | CONS_TO_INTEGER (process, pid_t, pid); | |
d44287d4 PE |
5960 | else |
5961 | { | |
5962 | CHECK_PROCESS (process); | |
5963 | pid = XPROCESS (process)->pid; | |
5964 | if (pid <= 0) | |
4d2b044c | 5965 | error ("Cannot signal process %s", SDATA (XPROCESS (process)->name)); |
d44287d4 | 5966 | } |
4766242d | 5967 | |
4766242d | 5968 | if (INTEGERP (sigcode)) |
d983a10b PE |
5969 | { |
5970 | CHECK_TYPE_RANGED_INTEGER (int, sigcode); | |
5971 | signo = XINT (sigcode); | |
5972 | } | |
4766242d RS |
5973 | else |
5974 | { | |
25a48bd0 | 5975 | char *name; |
4766242d | 5976 | |
b7826503 | 5977 | CHECK_SYMBOL (sigcode); |
25a48bd0 | 5978 | name = SSDATA (SYMBOL_NAME (sigcode)); |
4766242d | 5979 | |
d983a10b PE |
5980 | signo = abbr_to_signal (name); |
5981 | if (signo < 0) | |
9fa195a2 | 5982 | error ("Undefined signal name %s", name); |
4766242d RS |
5983 | } |
5984 | ||
d983a10b | 5985 | return make_number (kill (pid, signo)); |
d0d6b7c5 JB |
5986 | } |
5987 | ||
5988 | DEFUN ("process-send-eof", Fprocess_send_eof, Sprocess_send_eof, 0, 1, 0, | |
fdb82f93 PJ |
5989 | doc: /* Make PROCESS see end-of-file in its input. |
5990 | EOF comes after any text already sent to it. | |
5991 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5992 | nil, indicating the current buffer's process. | |
5993 | If PROCESS is a network connection, or is a process communicating | |
5994 | through a pipe (as opposed to a pty), then you cannot send any more | |
d888760c GM |
5995 | text to PROCESS after you call this function. |
5996 | If PROCESS is a serial process, wait until all output written to the | |
5997 | process has been transmitted to the serial port. */) | |
5842a27b | 5998 | (Lisp_Object process) |
d0d6b7c5 JB |
5999 | { |
6000 | Lisp_Object proc; | |
de7fbd09 | 6001 | struct coding_system *coding; |
d0d6b7c5 | 6002 | |
e690ca94 KS |
6003 | if (DATAGRAM_CONN_P (process)) |
6004 | return process; | |
6005 | ||
d0d6b7c5 | 6006 | proc = get_process (process); |
60f0fb11 | 6007 | coding = proc_encode_coding_system[XPROCESS (proc)->outfd]; |
577d03d5 RS |
6008 | |
6009 | /* Make sure the process is really alive. */ | |
6bfd98e7 | 6010 | if (XPROCESS (proc)->raw_status_new) |
577d03d5 | 6011 | update_status (XPROCESS (proc)); |
4d2b044c DA |
6012 | if (! EQ (XPROCESS (proc)->status, Qrun)) |
6013 | error ("Process %s not running", SDATA (XPROCESS (proc)->name)); | |
577d03d5 | 6014 | |
de7fbd09 KH |
6015 | if (CODING_REQUIRE_FLUSHING (coding)) |
6016 | { | |
6017 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
6018 | send_process (proc, "", 0, Qnil); | |
6019 | } | |
6020 | ||
60f0fb11 | 6021 | if (XPROCESS (proc)->pty_flag) |
4556b700 | 6022 | send_process (proc, "\004", 1, Qnil); |
4d2b044c | 6023 | else if (EQ (XPROCESS (proc)->type, Qserial)) |
d888760c | 6024 | { |
a7ebc409 | 6025 | #ifndef WINDOWSNT |
d888760c | 6026 | if (tcdrain (XPROCESS (proc)->outfd) != 0) |
4e604a5d | 6027 | report_file_error ("Failed tcdrain", Qnil); |
a7ebc409 | 6028 | #endif /* not WINDOWSNT */ |
d888760c GM |
6029 | /* Do nothing on Windows because writes are blocking. */ |
6030 | } | |
d0d6b7c5 JB |
6031 | else |
6032 | { | |
4525f571 RS |
6033 | int old_outfd, new_outfd; |
6034 | ||
93853f3d | 6035 | #ifdef HAVE_SHUTDOWN |
02f55c4b RS |
6036 | /* If this is a network connection, or socketpair is used |
6037 | for communication with the subprocess, call shutdown to cause EOF. | |
6038 | (In some old system, shutdown to socketpair doesn't work. | |
6039 | Then we just can't win.) */ | |
4d2b044c | 6040 | if (EQ (XPROCESS (proc)->type, Qnetwork) |
60f0fb11 SM |
6041 | || XPROCESS (proc)->outfd == XPROCESS (proc)->infd) |
6042 | shutdown (XPROCESS (proc)->outfd, 1); | |
02f55c4b | 6043 | /* In case of socketpair, outfd == infd, so don't close it. */ |
60f0fb11 SM |
6044 | if (XPROCESS (proc)->outfd != XPROCESS (proc)->infd) |
6045 | emacs_close (XPROCESS (proc)->outfd); | |
93853f3d | 6046 | #else /* not HAVE_SHUTDOWN */ |
60f0fb11 | 6047 | emacs_close (XPROCESS (proc)->outfd); |
93853f3d | 6048 | #endif /* not HAVE_SHUTDOWN */ |
68c45bf0 | 6049 | new_outfd = emacs_open (NULL_DEVICE, O_WRONLY, 0); |
27448380 | 6050 | if (new_outfd < 0) |
1088b922 | 6051 | emacs_abort (); |
60f0fb11 | 6052 | old_outfd = XPROCESS (proc)->outfd; |
4525f571 RS |
6053 | |
6054 | if (!proc_encode_coding_system[new_outfd]) | |
6055 | proc_encode_coding_system[new_outfd] | |
23f86fce | 6056 | = xmalloc (sizeof (struct coding_system)); |
ae1d87e2 PE |
6057 | *proc_encode_coding_system[new_outfd] |
6058 | = *proc_encode_coding_system[old_outfd]; | |
72af86bd AS |
6059 | memset (proc_encode_coding_system[old_outfd], 0, |
6060 | sizeof (struct coding_system)); | |
4525f571 | 6061 | |
60f0fb11 | 6062 | XPROCESS (proc)->outfd = new_outfd; |
d0d6b7c5 | 6063 | } |
d0d6b7c5 JB |
6064 | return process; |
6065 | } | |
d0d6b7c5 | 6066 | \f |
bb5f74ee | 6067 | /* The main Emacs thread records child processes in three places: |
0b3d4a47 | 6068 | |
bb5f74ee PE |
6069 | - Vprocess_alist, for asynchronous subprocesses, which are child |
6070 | processes visible to Lisp. | |
6071 | ||
6072 | - deleted_pid_list, for child processes invisible to Lisp, | |
6073 | typically because of delete-process. These are recorded so that | |
6074 | the processes can be reaped when they exit, so that the operating | |
6075 | system's process table is not cluttered by zombies. | |
0b3d4a47 | 6076 | |
bb5f74ee PE |
6077 | - the local variable PID in Fcall_process, call_process_cleanup and |
6078 | call_process_kill, for synchronous subprocesses. | |
6079 | record_unwind_protect is used to make sure this process is not | |
6080 | forgotten: if the user interrupts call-process and the child | |
6081 | process refuses to exit immediately even with two C-g's, | |
6082 | call_process_kill adds PID's contents to deleted_pid_list before | |
6083 | returning. | |
0b3d4a47 | 6084 | |
bb5f74ee PE |
6085 | The main Emacs thread invokes waitpid only on child processes that |
6086 | it creates and that have not been reaped. This avoid races on | |
6087 | platforms such as GTK, where other threads create their own | |
6088 | subprocesses which the main thread should not reap. For example, | |
6089 | if the main thread attempted to reap an already-reaped child, it | |
6090 | might inadvertently reap a GTK-created process that happened to | |
6091 | have the same process ID. */ | |
6092 | ||
f019a684 PE |
6093 | /* LIB_CHILD_HANDLER is a SIGCHLD handler that Emacs calls while doing |
6094 | its own SIGCHLD handling. On POSIXish systems, glib needs this to | |
fa55d2aa PE |
6095 | keep track of its own children. GNUstep is similar. */ |
6096 | ||
f019a684 | 6097 | static void dummy_handler (int sig) {} |
fa55d2aa | 6098 | static signal_handler_t volatile lib_child_handler; |
f019a684 | 6099 | |
bb5f74ee PE |
6100 | /* Handle a SIGCHLD signal by looking for known child processes of |
6101 | Emacs whose status have changed. For each one found, record its | |
6102 | new status. | |
177c0ea7 | 6103 | |
3fed8ad5 GM |
6104 | All we do is change the status; we do not run sentinels or print |
6105 | notifications. That is saved for the next time keyboard input is | |
6106 | done, in order to avoid timing errors. | |
6107 | ||
6108 | ** WARNING: this can be called during garbage collection. | |
6109 | Therefore, it must not be fooled by the presence of mark bits in | |
6110 | Lisp objects. | |
6111 | ||
6112 | ** USG WARNING: Although it is not obvious from the documentation | |
6113 | in signal(2), on a USG system the SIGCLD handler MUST NOT call | |
6114 | signal() before executing at least one wait(), otherwise the | |
6115 | handler will be called again, resulting in an infinite loop. The | |
6116 | relevant portion of the documentation reads "SIGCLD signals will be | |
6117 | queued and the signal-catching function will be continually | |
6118 | reentered until the queue is empty". Invoking signal() causes the | |
6119 | kernel to reexamine the SIGCLD queue. Fred Fish, UniSoft Systems | |
6b61353c KH |
6120 | Inc. |
6121 | ||
6122 | ** Malloc WARNING: This should never call malloc either directly or | |
6123 | indirectly; if it does, that is a bug */ | |
d0d6b7c5 | 6124 | |
bb5f74ee PE |
6125 | static void |
6126 | handle_child_signal (int sig) | |
d0d6b7c5 | 6127 | { |
20ef56db | 6128 | Lisp_Object tail; |
d0d6b7c5 | 6129 | |
20ef56db | 6130 | /* Find the process that signaled us, and record its status. */ |
d0d6b7c5 | 6131 | |
bb5f74ee PE |
6132 | /* The process can have been deleted by Fdelete_process, or have |
6133 | been started asynchronously by Fcall_process. */ | |
20ef56db PE |
6134 | for (tail = deleted_pid_list; CONSP (tail); tail = XCDR (tail)) |
6135 | { | |
0b3d4a47 PE |
6136 | bool all_pids_are_fixnums |
6137 | = (MOST_NEGATIVE_FIXNUM <= TYPE_MINIMUM (pid_t) | |
6138 | && TYPE_MAXIMUM (pid_t) <= MOST_POSITIVE_FIXNUM); | |
20ef56db | 6139 | Lisp_Object xpid = XCAR (tail); |
0b3d4a47 | 6140 | if (all_pids_are_fixnums ? INTEGERP (xpid) : NUMBERP (xpid)) |
a5cfdda8 | 6141 | { |
0b3d4a47 PE |
6142 | pid_t deleted_pid; |
6143 | if (INTEGERP (xpid)) | |
6144 | deleted_pid = XINT (xpid); | |
6145 | else | |
6146 | deleted_pid = XFLOAT_DATA (xpid); | |
bb5f74ee PE |
6147 | if (child_status_changed (deleted_pid, 0, 0)) |
6148 | XSETCAR (tail, Qnil); | |
a5cfdda8 | 6149 | } |
20ef56db | 6150 | } |
a5cfdda8 | 6151 | |
20ef56db | 6152 | /* Otherwise, if it is asynchronous, it is in Vprocess_alist. */ |
20ef56db PE |
6153 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
6154 | { | |
0b3d4a47 PE |
6155 | Lisp_Object proc = XCDR (XCAR (tail)); |
6156 | struct Lisp_Process *p = XPROCESS (proc); | |
bb5f74ee PE |
6157 | int status; |
6158 | ||
da9aff11 PE |
6159 | if (p->alive |
6160 | && child_status_changed (p->pid, &status, WUNTRACED | WCONTINUED)) | |
0b3d4a47 PE |
6161 | { |
6162 | /* Change the status of the process that was found. */ | |
6163 | p->tick = ++process_tick; | |
bb5f74ee | 6164 | p->raw_status = status; |
0b3d4a47 | 6165 | p->raw_status_new = 1; |
177c0ea7 | 6166 | |
0b3d4a47 | 6167 | /* If process has terminated, stop waiting for its output. */ |
bb5f74ee | 6168 | if (WIFSIGNALED (status) || WIFEXITED (status)) |
0b3d4a47 | 6169 | { |
0bce5d9e | 6170 | bool clear_desc_flag = 0; |
0b3d4a47 PE |
6171 | p->alive = 0; |
6172 | if (p->infd >= 0) | |
6173 | clear_desc_flag = 1; | |
e98d950b | 6174 | |
0b3d4a47 PE |
6175 | /* clear_desc_flag avoids a compiler bug in Microsoft C. */ |
6176 | if (clear_desc_flag) | |
6177 | { | |
6178 | FD_CLR (p->infd, &input_wait_mask); | |
6179 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
6180 | } | |
6181 | } | |
d0d6b7c5 | 6182 | } |
20ef56db | 6183 | } |
f019a684 PE |
6184 | |
6185 | lib_child_handler (sig); | |
2c41e781 JD |
6186 | #ifdef NS_IMPL_GNUSTEP |
6187 | /* NSTask in GNUStep sets its child handler each time it is called. | |
6188 | So we must re-set ours. */ | |
6189 | catch_child_signal(); | |
6190 | #endif | |
d0d6b7c5 | 6191 | } |
20ef56db PE |
6192 | |
6193 | static void | |
6194 | deliver_child_signal (int sig) | |
6195 | { | |
4d7e6e51 | 6196 | deliver_process_signal (sig, handle_child_signal); |
20ef56db | 6197 | } |
d0d6b7c5 JB |
6198 | \f |
6199 | ||
3b9a3dfa | 6200 | static Lisp_Object |
b93aacde | 6201 | exec_sentinel_error_handler (Lisp_Object error_val) |
3b9a3dfa | 6202 | { |
b93aacde | 6203 | cmd_error_internal (error_val, "error in process sentinel: "); |
3b9a3dfa RS |
6204 | Vinhibit_quit = Qt; |
6205 | update_echo_area (); | |
833ba342 | 6206 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 6207 | return Qt; |
3b9a3dfa RS |
6208 | } |
6209 | ||
d0d6b7c5 | 6210 | static void |
d3da34e0 | 6211 | exec_sentinel (Lisp_Object proc, Lisp_Object reason) |
d0d6b7c5 | 6212 | { |
aba7731a | 6213 | Lisp_Object sentinel, odeactivate; |
1882aa38 | 6214 | struct Lisp_Process *p = XPROCESS (proc); |
d311d28c | 6215 | ptrdiff_t count = SPECPDL_INDEX (); |
1882aa38 | 6216 | bool outer_running_asynch_code = running_asynch_code; |
bbce7d72 | 6217 | int waiting = waiting_for_user_input_p; |
d0d6b7c5 | 6218 | |
84af9896 RS |
6219 | if (inhibit_sentinels) |
6220 | return; | |
6221 | ||
dfc21838 RS |
6222 | /* No need to gcpro these, because all we do with them later |
6223 | is test them for EQness, and none of them should be a string. */ | |
8fb3cf64 | 6224 | odeactivate = Vdeactivate_mark; |
aba7731a PE |
6225 | #if 0 |
6226 | Lisp_Object obuffer, okeymap; | |
dfc21838 | 6227 | XSETBUFFER (obuffer, current_buffer); |
4b4deea2 | 6228 | okeymap = BVAR (current_buffer, keymap); |
aba7731a | 6229 | #endif |
dfc21838 | 6230 | |
97e53006 SM |
6231 | /* There's no good reason to let sentinels change the current |
6232 | buffer, and many callers of accept-process-output, sit-for, and | |
6233 | friends don't expect current-buffer to be changed from under them. */ | |
66322887 | 6234 | record_unwind_current_buffer (); |
97e53006 | 6235 | |
4d2b044c | 6236 | sentinel = p->sentinel; |
d0d6b7c5 | 6237 | |
d0d6b7c5 JB |
6238 | /* Inhibit quit so that random quits don't screw up a running filter. */ |
6239 | specbind (Qinhibit_quit, Qt); | |
f00c449b | 6240 | specbind (Qlast_nonmenu_event, Qt); /* Why? --Stef */ |
3b9a3dfa | 6241 | |
4da2f5be RS |
6242 | /* In case we get recursively called, |
6243 | and we already saved the match data nonrecursively, | |
6244 | save the same match data in safely recursive fashion. */ | |
6245 | if (outer_running_asynch_code) | |
6246 | { | |
6247 | Lisp_Object tem; | |
89f2614d KS |
6248 | tem = Fmatch_data (Qnil, Qnil, Qnil); |
6249 | restore_search_regs (); | |
6250 | record_unwind_save_match_data (); | |
6251 | Fset_match_data (tem, Qt); | |
4da2f5be RS |
6252 | } |
6253 | ||
6254 | /* For speed, if a search happens within this code, | |
6255 | save the match data in a special nonrecursive fashion. */ | |
7074fde6 | 6256 | running_asynch_code = 1; |
4da2f5be | 6257 | |
3b9a3dfa | 6258 | internal_condition_case_1 (read_process_output_call, |
6c6f1994 | 6259 | list3 (sentinel, proc, reason), |
3b9a3dfa RS |
6260 | !NILP (Vdebug_on_error) ? Qnil : Qerror, |
6261 | exec_sentinel_error_handler); | |
4da2f5be RS |
6262 | |
6263 | /* If we saved the match data nonrecursively, restore it now. */ | |
89f2614d | 6264 | restore_search_regs (); |
4da2f5be | 6265 | running_asynch_code = outer_running_asynch_code; |
8fb3cf64 KH |
6266 | |
6267 | Vdeactivate_mark = odeactivate; | |
bbce7d72 RS |
6268 | |
6269 | /* Restore waiting_for_user_input_p as it was | |
6270 | when we were called, in case the filter clobbered it. */ | |
6271 | waiting_for_user_input_p = waiting; | |
6272 | ||
7973cfa8 | 6273 | #if 0 |
dfc21838 RS |
6274 | if (! EQ (Fcurrent_buffer (), obuffer) |
6275 | || ! EQ (current_buffer->keymap, okeymap)) | |
7973cfa8 | 6276 | #endif |
927e08be RS |
6277 | /* But do it only if the caller is actually going to read events. |
6278 | Otherwise there's no need to make him wake up, and it could | |
7157b8fe | 6279 | cause trouble (for example it would make sit_for return). */ |
927e08be RS |
6280 | if (waiting_for_user_input_p == -1) |
6281 | record_asynch_buffer_change (); | |
8fb3cf64 | 6282 | |
2ea6d561 | 6283 | unbind_to (count, Qnil); |
d0d6b7c5 JB |
6284 | } |
6285 | ||
6286 | /* Report all recent events of a change in process status | |
6287 | (either run the sentinel or output a message). | |
b50fe468 RS |
6288 | This is usually done while Emacs is waiting for keyboard input |
6289 | but can be done at other times. */ | |
d0d6b7c5 | 6290 | |
ff6daed3 | 6291 | static void |
d3da34e0 | 6292 | status_notify (struct Lisp_Process *deleting_process) |
d0d6b7c5 | 6293 | { |
1aa8d505 | 6294 | register Lisp_Object proc; |
2e4149a8 | 6295 | Lisp_Object tail, msg; |
d0d6b7c5 JB |
6296 | struct gcpro gcpro1, gcpro2; |
6297 | ||
2e4149a8 KH |
6298 | tail = Qnil; |
6299 | msg = Qnil; | |
d0d6b7c5 JB |
6300 | /* We need to gcpro tail; if read_process_output calls a filter |
6301 | which deletes a process and removes the cons to which tail points | |
6302 | from Vprocess_alist, and then causes a GC, tail is an unprotected | |
6303 | reference. */ | |
6304 | GCPRO2 (tail, msg); | |
6305 | ||
30623085 RS |
6306 | /* Set this now, so that if new processes are created by sentinels |
6307 | that we run, we get called again to handle their status changes. */ | |
6308 | update_tick = process_tick; | |
6309 | ||
99784d63 | 6310 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6311 | { |
30623085 RS |
6312 | Lisp_Object symbol; |
6313 | register struct Lisp_Process *p; | |
6314 | ||
99784d63 | 6315 | proc = Fcdr (XCAR (tail)); |
30623085 RS |
6316 | p = XPROCESS (proc); |
6317 | ||
60f0fb11 | 6318 | if (p->tick != p->update_tick) |
d0d6b7c5 | 6319 | { |
60f0fb11 | 6320 | p->update_tick = p->tick; |
d0d6b7c5 | 6321 | |
30623085 | 6322 | /* If process is still active, read any output that remains. */ |
4d2b044c DA |
6323 | while (! EQ (p->filter, Qt) |
6324 | && ! EQ (p->status, Qconnect) | |
6325 | && ! EQ (p->status, Qlisten) | |
d888760c | 6326 | /* Network or serial process not stopped: */ |
4d2b044c | 6327 | && ! EQ (p->command, Qt) |
60f0fb11 | 6328 | && p->infd >= 0 |
ff6daed3 | 6329 | && p != deleting_process |
60f0fb11 | 6330 | && read_process_output (proc, p->infd) > 0); |
d0d6b7c5 | 6331 | |
30623085 | 6332 | /* Get the text to use for the message. */ |
6bfd98e7 | 6333 | if (p->raw_status_new) |
30623085 | 6334 | update_status (p); |
116c423c | 6335 | msg = status_message (p); |
d0d6b7c5 | 6336 | |
30623085 | 6337 | /* If process is terminated, deactivate it or delete it. */ |
4d2b044c DA |
6338 | symbol = p->status; |
6339 | if (CONSP (p->status)) | |
6340 | symbol = XCAR (p->status); | |
d0d6b7c5 | 6341 | |
30623085 RS |
6342 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit) |
6343 | || EQ (symbol, Qclosed)) | |
6344 | { | |
6345 | if (delete_exited_processes) | |
6346 | remove_process (proc); | |
6347 | else | |
6348 | deactivate_process (proc); | |
6349 | } | |
d0d6b7c5 | 6350 | |
0ad61fe7 | 6351 | /* The actions above may have further incremented p->tick. |
1aa8d505 SM |
6352 | So set p->update_tick again so that an error in the sentinel will |
6353 | not cause this code to be run again. */ | |
60f0fb11 | 6354 | p->update_tick = p->tick; |
30623085 | 6355 | /* Now output the message suitably. */ |
1aa8d505 | 6356 | exec_sentinel (proc, msg); |
30623085 RS |
6357 | } |
6358 | } /* end for */ | |
d0d6b7c5 | 6359 | |
1aa8d505 | 6360 | update_mode_lines++; /* In case buffers use %s in mode-line-format. */ |
d0d6b7c5 JB |
6361 | UNGCPRO; |
6362 | } | |
0fa1789e | 6363 | |
1aa8d505 SM |
6364 | DEFUN ("internal-default-process-sentinel", Finternal_default_process_sentinel, |
6365 | Sinternal_default_process_sentinel, 2, 2, 0, | |
6366 | doc: /* Function used as default sentinel for processes. */) | |
6367 | (Lisp_Object proc, Lisp_Object msg) | |
6368 | { | |
6369 | Lisp_Object buffer, symbol; | |
6370 | struct Lisp_Process *p; | |
6371 | CHECK_PROCESS (proc); | |
6372 | p = XPROCESS (proc); | |
6373 | buffer = p->buffer; | |
6374 | symbol = p->status; | |
6375 | if (CONSP (symbol)) | |
6376 | symbol = XCAR (symbol); | |
6377 | ||
6378 | if (!EQ (symbol, Qrun) && !NILP (buffer)) | |
6379 | { | |
6380 | Lisp_Object tem; | |
6381 | struct buffer *old = current_buffer; | |
6382 | ptrdiff_t opoint, opoint_byte; | |
6383 | ptrdiff_t before, before_byte; | |
6384 | ||
6385 | /* Avoid error if buffer is deleted | |
6386 | (probably that's why the process is dead, too). */ | |
6387 | if (!BUFFER_LIVE_P (XBUFFER (buffer))) | |
6388 | return Qnil; | |
6389 | Fset_buffer (buffer); | |
6390 | ||
6391 | if (NILP (BVAR (current_buffer, enable_multibyte_characters))) | |
6392 | msg = (code_convert_string_norecord | |
6393 | (msg, Vlocale_coding_system, 1)); | |
6394 | ||
6395 | opoint = PT; | |
6396 | opoint_byte = PT_BYTE; | |
6397 | /* Insert new output into buffer | |
6398 | at the current end-of-output marker, | |
6399 | thus preserving logical ordering of input and output. */ | |
6400 | if (XMARKER (p->mark)->buffer) | |
6401 | Fgoto_char (p->mark); | |
6402 | else | |
6403 | SET_PT_BOTH (ZV, ZV_BYTE); | |
6404 | ||
6405 | before = PT; | |
6406 | before_byte = PT_BYTE; | |
6407 | ||
6408 | tem = BVAR (current_buffer, read_only); | |
6409 | bset_read_only (current_buffer, Qnil); | |
6410 | insert_string ("\nProcess "); | |
6411 | { /* FIXME: temporary kludge. */ | |
6412 | Lisp_Object tem2 = p->name; Finsert (1, &tem2); } | |
6413 | insert_string (" "); | |
6414 | Finsert (1, &msg); | |
6415 | bset_read_only (current_buffer, tem); | |
6416 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); | |
6417 | ||
6418 | if (opoint >= before) | |
6419 | SET_PT_BOTH (opoint + (PT - before), | |
6420 | opoint_byte + (PT_BYTE - before_byte)); | |
6421 | else | |
6422 | SET_PT_BOTH (opoint, opoint_byte); | |
6423 | ||
6424 | set_buffer_internal (old); | |
6425 | } | |
6426 | return Qnil; | |
6427 | } | |
6428 | ||
0fa1789e KH |
6429 | \f |
6430 | DEFUN ("set-process-coding-system", Fset_process_coding_system, | |
6431 | Sset_process_coding_system, 1, 3, 0, | |
fdb82f93 PJ |
6432 | doc: /* Set coding systems of PROCESS to DECODING and ENCODING. |
6433 | DECODING will be used to decode subprocess output and ENCODING to | |
6434 | encode subprocess input. */) | |
5842a27b | 6435 | (register Lisp_Object process, Lisp_Object decoding, Lisp_Object encoding) |
0fa1789e KH |
6436 | { |
6437 | register struct Lisp_Process *p; | |
6438 | ||
f3d9532b JB |
6439 | CHECK_PROCESS (process); |
6440 | p = XPROCESS (process); | |
60f0fb11 | 6441 | if (p->infd < 0) |
4d2b044c | 6442 | error ("Input file descriptor of %s closed", SDATA (p->name)); |
60f0fb11 | 6443 | if (p->outfd < 0) |
4d2b044c | 6444 | error ("Output file descriptor of %s closed", SDATA (p->name)); |
03f04413 KH |
6445 | Fcheck_coding_system (decoding); |
6446 | Fcheck_coding_system (encoding); | |
76d812bb | 6447 | encoding = coding_inherit_eol_type (encoding, Qnil); |
6a09a33b PE |
6448 | pset_decode_coding_system (p, decoding); |
6449 | pset_encode_coding_system (p, encoding); | |
f3d9532b | 6450 | setup_process_coding_systems (process); |
0fa1789e KH |
6451 | |
6452 | return Qnil; | |
6453 | } | |
6454 | ||
6455 | DEFUN ("process-coding-system", | |
6456 | Fprocess_coding_system, Sprocess_coding_system, 1, 1, 0, | |
fdb82f93 | 6457 | doc: /* Return a cons of coding systems for decoding and encoding of PROCESS. */) |
5842a27b | 6458 | (register Lisp_Object process) |
0fa1789e | 6459 | { |
f3d9532b | 6460 | CHECK_PROCESS (process); |
4d2b044c DA |
6461 | return Fcons (XPROCESS (process)->decode_coding_system, |
6462 | XPROCESS (process)->encode_coding_system); | |
0fa1789e | 6463 | } |
03f04413 KH |
6464 | |
6465 | DEFUN ("set-process-filter-multibyte", Fset_process_filter_multibyte, | |
6466 | Sset_process_filter_multibyte, 2, 2, 0, | |
7392e23c KS |
6467 | doc: /* Set multibyteness of the strings given to PROCESS's filter. |
6468 | If FLAG is non-nil, the filter is given multibyte strings. | |
6469 | If FLAG is nil, the filter is given unibyte strings. In this case, | |
03f04413 KH |
6470 | all character code conversion except for end-of-line conversion is |
6471 | suppressed. */) | |
5842a27b | 6472 | (Lisp_Object process, Lisp_Object flag) |
03f04413 KH |
6473 | { |
6474 | register struct Lisp_Process *p; | |
6475 | ||
f3d9532b JB |
6476 | CHECK_PROCESS (process); |
6477 | p = XPROCESS (process); | |
5431bd6a | 6478 | if (NILP (flag)) |
6a09a33b PE |
6479 | pset_decode_coding_system |
6480 | (p, raw_text_coding_system (p->decode_coding_system)); | |
f3d9532b | 6481 | setup_process_coding_systems (process); |
03f04413 KH |
6482 | |
6483 | return Qnil; | |
6484 | } | |
6485 | ||
6486 | DEFUN ("process-filter-multibyte-p", Fprocess_filter_multibyte_p, | |
6487 | Sprocess_filter_multibyte_p, 1, 1, 0, | |
6488 | doc: /* Return t if a multibyte string is given to PROCESS's filter.*/) | |
5842a27b | 6489 | (Lisp_Object process) |
03f04413 KH |
6490 | { |
6491 | register struct Lisp_Process *p; | |
5431bd6a | 6492 | struct coding_system *coding; |
03f04413 | 6493 | |
f3d9532b JB |
6494 | CHECK_PROCESS (process); |
6495 | p = XPROCESS (process); | |
5431bd6a SM |
6496 | coding = proc_decode_coding_system[p->infd]; |
6497 | return (CODING_FOR_UNIBYTE (coding) ? Qnil : Qt); | |
03f04413 KH |
6498 | } |
6499 | ||
6500 | ||
d0d6b7c5 | 6501 | \f |
cb768704 | 6502 | |
4475bec4 PE |
6503 | # ifdef HAVE_GPM |
6504 | ||
994d9841 | 6505 | void |
d3da34e0 | 6506 | add_gpm_wait_descriptor (int desc) |
994d9841 | 6507 | { |
3fad2ad2 | 6508 | add_keyboard_wait_descriptor (desc); |
994d9841 NR |
6509 | } |
6510 | ||
994d9841 | 6511 | void |
d3da34e0 | 6512 | delete_gpm_wait_descriptor (int desc) |
994d9841 | 6513 | { |
3fad2ad2 | 6514 | delete_keyboard_wait_descriptor (desc); |
994d9841 NR |
6515 | } |
6516 | ||
4475bec4 PE |
6517 | # endif |
6518 | ||
4a4bbad2 | 6519 | # ifdef USABLE_SIGIO |
006c5daa | 6520 | |
0bce5d9e | 6521 | /* Return true if *MASK has a bit set |
a69281ff RS |
6522 | that corresponds to one of the keyboard input descriptors. */ |
6523 | ||
0bce5d9e | 6524 | static bool |
d3da34e0 | 6525 | keyboard_bit_set (fd_set *mask) |
a69281ff RS |
6526 | { |
6527 | int fd; | |
6528 | ||
3fad2ad2 | 6529 | for (fd = 0; fd <= max_input_desc; fd++) |
a69281ff RS |
6530 | if (FD_ISSET (fd, mask) && FD_ISSET (fd, &input_wait_mask) |
6531 | && !FD_ISSET (fd, &non_keyboard_wait_mask)) | |
6532 | return 1; | |
6533 | ||
6534 | return 0; | |
6535 | } | |
006c5daa | 6536 | # endif |
934e2a68 | 6537 | |
f388c88a | 6538 | #else /* not subprocesses */ |
934e2a68 | 6539 | |
f388c88a EZ |
6540 | /* Defined on msdos.c. */ |
6541 | extern int sys_select (int, SELECT_TYPE *, SELECT_TYPE *, SELECT_TYPE *, | |
0d23c240 | 6542 | EMACS_TIME *, void *); |
934e2a68 | 6543 | |
f388c88a EZ |
6544 | /* Implementation of wait_reading_process_output, assuming that there |
6545 | are no subprocesses. Used only by the MS-DOS build. | |
934e2a68 | 6546 | |
f388c88a | 6547 | Wait for timeout to elapse and/or keyboard input to be available. |
934e2a68 | 6548 | |
d188e26b | 6549 | TIME_LIMIT is: |
d35af63c PE |
6550 | timeout in seconds |
6551 | If negative, gobble data immediately available but don't wait for any. | |
6552 | ||
d188e26b | 6553 | NSECS is: |
d35af63c PE |
6554 | an additional duration to wait, measured in nanoseconds |
6555 | If TIME_LIMIT is zero, then: | |
d188e26b PE |
6556 | If NSECS == 0, there is no limit. |
6557 | If NSECS > 0, the timeout consists of NSECS only. | |
d35af63c | 6558 | If NSECS < 0, gobble data immediately, as if TIME_LIMIT were negative. |
934e2a68 | 6559 | |
a0bee46f | 6560 | READ_KBD is: |
f388c88a EZ |
6561 | 0 to ignore keyboard input, or |
6562 | 1 to return when input is available, or | |
6563 | -1 means caller will actually read the input, so don't throw to | |
6564 | the quit handler. | |
934e2a68 | 6565 | |
f388c88a EZ |
6566 | see full version for other parameters. We know that wait_proc will |
6567 | always be NULL, since `subprocesses' isn't defined. | |
934e2a68 | 6568 | |
9fa1de30 | 6569 | DO_DISPLAY means redisplay should be done to show subprocess |
f388c88a | 6570 | output that arrives. |
934e2a68 | 6571 | |
f388c88a EZ |
6572 | Return true if we received input from any process. */ |
6573 | ||
0bce5d9e | 6574 | bool |
d35af63c | 6575 | wait_reading_process_output (intmax_t time_limit, int nsecs, int read_kbd, |
9fa1de30 | 6576 | bool do_display, |
1408902e EZ |
6577 | Lisp_Object wait_for_cell, |
6578 | struct Lisp_Process *wait_proc, int just_wait_proc) | |
d0d6b7c5 | 6579 | { |
f388c88a EZ |
6580 | register int nfds; |
6581 | EMACS_TIME end_time, timeout; | |
d0d6b7c5 | 6582 | |
d35af63c PE |
6583 | if (time_limit < 0) |
6584 | { | |
6585 | time_limit = 0; | |
6586 | nsecs = -1; | |
6587 | } | |
6588 | else if (TYPE_MAXIMUM (time_t) < time_limit) | |
6589 | time_limit = TYPE_MAXIMUM (time_t); | |
6590 | ||
f388c88a | 6591 | /* What does time_limit really mean? */ |
908589fd | 6592 | if (time_limit || nsecs > 0) |
f388c88a | 6593 | { |
e9a9ae03 PE |
6594 | timeout = make_emacs_time (time_limit, nsecs); |
6595 | end_time = add_emacs_time (current_emacs_time (), timeout); | |
f388c88a | 6596 | } |
84af9896 | 6597 | |
f388c88a EZ |
6598 | /* Turn off periodic alarms (in case they are in use) |
6599 | and then turn off any other atimers, | |
6600 | because the select emulator uses alarms. */ | |
6601 | stop_polling (); | |
6602 | turn_on_atimers (0); | |
d0d6b7c5 | 6603 | |
f388c88a EZ |
6604 | while (1) |
6605 | { | |
0bce5d9e | 6606 | bool timeout_reduced_for_timers = 0; |
a0bee46f PE |
6607 | SELECT_TYPE waitchannels; |
6608 | int xerrno; | |
dd2281ae | 6609 | |
f388c88a EZ |
6610 | /* If calling from keyboard input, do not quit |
6611 | since we want to return C-g as an input character. | |
6612 | Otherwise, do pending quit if requested. */ | |
6613 | if (read_kbd >= 0) | |
6614 | QUIT; | |
bad49fc7 | 6615 | |
f388c88a EZ |
6616 | /* Exit now if the cell we're waiting for became non-nil. */ |
6617 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) | |
6618 | break; | |
0a65b032 | 6619 | |
1aa8d505 SM |
6620 | /* Compute time from now till when time limit is up. */ |
6621 | /* Exit if already run out. */ | |
d35af63c | 6622 | if (nsecs < 0) |
52fd88d3 | 6623 | { |
216ee680 | 6624 | /* A negative timeout means |
52fd88d3 | 6625 | gobble output available now |
1aa8d505 | 6626 | but don't wait at all. */ |
52fd88d3 | 6627 | |
e9a9ae03 | 6628 | timeout = make_emacs_time (0, 0); |
52fd88d3 | 6629 | } |
908589fd | 6630 | else if (time_limit || nsecs > 0) |
6720a7fb | 6631 | { |
e9a9ae03 PE |
6632 | EMACS_TIME now = current_emacs_time (); |
6633 | if (EMACS_TIME_LE (end_time, now)) | |
6720a7fb | 6634 | break; |
e9a9ae03 | 6635 | timeout = sub_emacs_time (end_time, now); |
6720a7fb | 6636 | } |
52fd88d3 EZ |
6637 | else |
6638 | { | |
e9a9ae03 | 6639 | timeout = make_emacs_time (100000, 0); |
52fd88d3 | 6640 | } |
6720a7fb | 6641 | |
bae8d137 RS |
6642 | /* If our caller will not immediately handle keyboard events, |
6643 | run timer events directly. | |
6644 | (Callers that will immediately read keyboard events | |
6645 | call timer_delay on their own.) */ | |
f3fbd155 | 6646 | if (NILP (wait_for_cell)) |
bae8d137 RS |
6647 | { |
6648 | EMACS_TIME timer_delay; | |
0a65b032 | 6649 | |
9baacf76 | 6650 | do |
0a65b032 | 6651 | { |
9fa1de30 | 6652 | unsigned old_timers_run = timers_run; |
f868cd8a | 6653 | timer_delay = timer_check (); |
9baacf76 GM |
6654 | if (timers_run != old_timers_run && do_display) |
6655 | /* We must retry, since a timer may have requeued itself | |
6656 | and that could alter the time delay. */ | |
3007ebfb | 6657 | redisplay_preserve_echo_area (14); |
9baacf76 GM |
6658 | else |
6659 | break; | |
0a65b032 | 6660 | } |
9baacf76 | 6661 | while (!detect_input_pending ()); |
0a65b032 | 6662 | |
52fd88d3 | 6663 | /* If there is unread keyboard input, also return. */ |
b89a415a | 6664 | if (read_kbd != 0 |
52fd88d3 EZ |
6665 | && requeued_events_pending_p ()) |
6666 | break; | |
6667 | ||
908589fd | 6668 | if (EMACS_TIME_VALID_P (timer_delay) && nsecs >= 0) |
bae8d137 | 6669 | { |
d35af63c | 6670 | if (EMACS_TIME_LT (timer_delay, timeout)) |
bae8d137 | 6671 | { |
f694e5d2 | 6672 | timeout = timer_delay; |
bae8d137 RS |
6673 | timeout_reduced_for_timers = 1; |
6674 | } | |
6675 | } | |
6676 | } | |
6677 | ||
6720a7fb JB |
6678 | /* Cause C-g and alarm signals to take immediate action, |
6679 | and cause input available signals to zero out timeout. */ | |
b89a415a | 6680 | if (read_kbd < 0) |
6720a7fb JB |
6681 | set_waiting_for_input (&timeout); |
6682 | ||
ff11dfa1 | 6683 | /* If a frame has been newly mapped and needs updating, |
6720a7fb | 6684 | reprocess its display stuff. */ |
5164ee8e | 6685 | if (frame_garbaged && do_display) |
0a65b032 RS |
6686 | { |
6687 | clear_waiting_for_input (); | |
3007ebfb | 6688 | redisplay_preserve_echo_area (15); |
b89a415a | 6689 | if (read_kbd < 0) |
0a65b032 RS |
6690 | set_waiting_for_input (&timeout); |
6691 | } | |
6720a7fb | 6692 | |
a0bee46f PE |
6693 | /* Wait till there is something to do. */ |
6694 | FD_ZERO (&waitchannels); | |
b89a415a | 6695 | if (read_kbd && detect_input_pending ()) |
a0bee46f PE |
6696 | nfds = 0; |
6697 | else | |
1861b214 | 6698 | { |
a0bee46f PE |
6699 | if (read_kbd || !NILP (wait_for_cell)) |
6700 | FD_SET (0, &waitchannels); | |
6701 | nfds = pselect (1, &waitchannels, NULL, NULL, &timeout, NULL); | |
1861b214 | 6702 | } |
f694e5d2 KH |
6703 | |
6704 | xerrno = errno; | |
6720a7fb JB |
6705 | |
6706 | /* Make C-g and alarm signals set flags again */ | |
6707 | clear_waiting_for_input (); | |
6708 | ||
6709 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 6710 | do_pending_window_change (0); |
6720a7fb | 6711 | |
d35af63c | 6712 | if ((time_limit || nsecs) && nfds == 0 && ! timeout_reduced_for_timers) |
f694e5d2 KH |
6713 | /* We waited the full specified time, so return now. */ |
6714 | break; | |
6715 | ||
6720a7fb JB |
6716 | if (nfds == -1) |
6717 | { | |
6718 | /* If the system call was interrupted, then go around the | |
6719 | loop again. */ | |
f694e5d2 | 6720 | if (xerrno == EINTR) |
8db121c4 | 6721 | FD_ZERO (&waitchannels); |
f694e5d2 | 6722 | else |
4e604a5d | 6723 | report_file_errno ("Failed select", Qnil, xerrno); |
6720a7fb | 6724 | } |
6720a7fb | 6725 | |
f694e5d2 KH |
6726 | /* Check for keyboard input */ |
6727 | ||
b89a415a | 6728 | if (read_kbd |
78c1afb6 | 6729 | && detect_input_pending_run_timers (do_display)) |
f694e5d2 | 6730 | { |
78c1afb6 | 6731 | swallow_events (do_display); |
f694e5d2 | 6732 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 | 6733 | break; |
78c1afb6 EZ |
6734 | } |
6735 | ||
52fd88d3 | 6736 | /* If there is unread keyboard input, also return. */ |
b89a415a | 6737 | if (read_kbd |
52fd88d3 EZ |
6738 | && requeued_events_pending_p ()) |
6739 | break; | |
6740 | ||
f854a00b RS |
6741 | /* If wait_for_cell. check for keyboard input |
6742 | but don't run any timers. | |
6743 | ??? (It seems wrong to me to check for keyboard | |
6744 | input at all when wait_for_cell, but the code | |
6745 | has been this way since July 1994. | |
6746 | Try changing this after version 19.31.) */ | |
f3fbd155 | 6747 | if (! NILP (wait_for_cell) |
f854a00b RS |
6748 | && detect_input_pending ()) |
6749 | { | |
6750 | swallow_events (do_display); | |
6751 | if (detect_input_pending ()) | |
6752 | break; | |
6753 | } | |
6754 | ||
0a65b032 | 6755 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 6756 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
0a65b032 | 6757 | break; |
6720a7fb JB |
6758 | } |
6759 | ||
a87b802f JB |
6760 | start_polling (); |
6761 | ||
6720a7fb JB |
6762 | return 0; |
6763 | } | |
6764 | ||
f388c88a EZ |
6765 | #endif /* not subprocesses */ |
6766 | ||
6767 | /* The following functions are needed even if async subprocesses are | |
6768 | not supported. Some of them are no-op stubs in that case. */ | |
6720a7fb | 6769 | |
01faa934 DN |
6770 | /* Add DESC to the set of keyboard input descriptors. */ |
6771 | ||
6772 | void | |
6773 | add_keyboard_wait_descriptor (int desc) | |
6774 | { | |
bf05eed6 | 6775 | #ifdef subprocesses /* actually means "not MSDOS" */ |
01faa934 DN |
6776 | FD_SET (desc, &input_wait_mask); |
6777 | FD_SET (desc, &non_process_wait_mask); | |
3fad2ad2 J |
6778 | if (desc > max_input_desc) |
6779 | max_input_desc = desc; | |
bf05eed6 | 6780 | #endif |
01faa934 DN |
6781 | } |
6782 | ||
6783 | /* From now on, do not expect DESC to give keyboard input. */ | |
6784 | ||
6785 | void | |
6786 | delete_keyboard_wait_descriptor (int desc) | |
6787 | { | |
bf05eed6 | 6788 | #ifdef subprocesses |
01faa934 | 6789 | int fd; |
3fad2ad2 | 6790 | int lim = max_input_desc; |
01faa934 DN |
6791 | |
6792 | FD_CLR (desc, &input_wait_mask); | |
6793 | FD_CLR (desc, &non_process_wait_mask); | |
6794 | ||
3fad2ad2 | 6795 | if (desc == max_input_desc) |
01faa934 | 6796 | for (fd = 0; fd < lim; fd++) |
3fad2ad2 J |
6797 | if (FD_ISSET (fd, &input_wait_mask) || FD_ISSET (fd, &write_mask)) |
6798 | max_input_desc = fd; | |
bf05eed6 | 6799 | #endif |
01faa934 DN |
6800 | } |
6801 | ||
fc549af9 EZ |
6802 | /* Setup coding systems of PROCESS. */ |
6803 | ||
6804 | void | |
6805 | setup_process_coding_systems (Lisp_Object process) | |
6806 | { | |
6807 | #ifdef subprocesses | |
6808 | struct Lisp_Process *p = XPROCESS (process); | |
6809 | int inch = p->infd; | |
6810 | int outch = p->outfd; | |
6811 | Lisp_Object coding_system; | |
6812 | ||
6813 | if (inch < 0 || outch < 0) | |
6814 | return; | |
6815 | ||
6816 | if (!proc_decode_coding_system[inch]) | |
38182d90 | 6817 | proc_decode_coding_system[inch] = xmalloc (sizeof (struct coding_system)); |
4d2b044c | 6818 | coding_system = p->decode_coding_system; |
1aa8d505 SM |
6819 | if (EQ (p->filter, Qinternal_default_process_filter) |
6820 | && BUFFERP (p->buffer)) | |
fc549af9 | 6821 | { |
4d2b044c | 6822 | if (NILP (BVAR (XBUFFER (p->buffer), enable_multibyte_characters))) |
fc549af9 EZ |
6823 | coding_system = raw_text_coding_system (coding_system); |
6824 | } | |
6825 | setup_coding_system (coding_system, proc_decode_coding_system[inch]); | |
6826 | ||
6827 | if (!proc_encode_coding_system[outch]) | |
38182d90 | 6828 | proc_encode_coding_system[outch] = xmalloc (sizeof (struct coding_system)); |
4d2b044c | 6829 | setup_coding_system (p->encode_coding_system, |
fc549af9 EZ |
6830 | proc_encode_coding_system[outch]); |
6831 | #endif | |
6832 | } | |
6833 | ||
6720a7fb | 6834 | DEFUN ("get-buffer-process", Fget_buffer_process, Sget_buffer_process, 1, 1, 0, |
f388c88a EZ |
6835 | doc: /* Return the (or a) process associated with BUFFER. |
6836 | BUFFER may be a buffer or the name of one. */) | |
6837 | (register Lisp_Object buffer) | |
6720a7fb | 6838 | { |
f388c88a EZ |
6839 | #ifdef subprocesses |
6840 | register Lisp_Object buf, tail, proc; | |
6841 | ||
6842 | if (NILP (buffer)) return Qnil; | |
6843 | buf = Fget_buffer (buffer); | |
6844 | if (NILP (buf)) return Qnil; | |
6845 | ||
6846 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) | |
6847 | { | |
6848 | proc = Fcdr (XCAR (tail)); | |
4d2b044c | 6849 | if (PROCESSP (proc) && EQ (XPROCESS (proc)->buffer, buf)) |
f388c88a EZ |
6850 | return proc; |
6851 | } | |
6852 | #endif /* subprocesses */ | |
6720a7fb JB |
6853 | return Qnil; |
6854 | } | |
6855 | ||
52a1b894 | 6856 | DEFUN ("process-inherit-coding-system-flag", |
fdb82f93 PJ |
6857 | Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag, |
6858 | 1, 1, 0, | |
f388c88a EZ |
6859 | doc: /* Return the value of inherit-coding-system flag for PROCESS. |
6860 | If this flag is t, `buffer-file-coding-system' of the buffer | |
6861 | associated with PROCESS will inherit the coding system used to decode | |
6862 | the process output. */) | |
5842a27b | 6863 | (register Lisp_Object process) |
52a1b894 | 6864 | { |
f388c88a EZ |
6865 | #ifdef subprocesses |
6866 | CHECK_PROCESS (process); | |
6867 | return XPROCESS (process)->inherit_coding_system_flag ? Qt : Qnil; | |
6868 | #else | |
52a1b894 EZ |
6869 | /* Ignore the argument and return the value of |
6870 | inherit-process-coding-system. */ | |
6871 | return inherit_process_coding_system ? Qt : Qnil; | |
f388c88a | 6872 | #endif |
52a1b894 EZ |
6873 | } |
6874 | ||
6720a7fb | 6875 | /* Kill all processes associated with `buffer'. |
f388c88a | 6876 | If `buffer' is nil, kill all processes */ |
6720a7fb | 6877 | |
d9bb0c32 | 6878 | void |
f388c88a | 6879 | kill_buffer_processes (Lisp_Object buffer) |
6720a7fb | 6880 | { |
f388c88a EZ |
6881 | #ifdef subprocesses |
6882 | Lisp_Object tail, proc; | |
6883 | ||
6884 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) | |
6885 | { | |
6886 | proc = XCDR (XCAR (tail)); | |
6887 | if (PROCESSP (proc) | |
4d2b044c | 6888 | && (NILP (buffer) || EQ (XPROCESS (proc)->buffer, buffer))) |
f388c88a EZ |
6889 | { |
6890 | if (NETCONN_P (proc) || SERIALCONN_P (proc)) | |
6891 | Fdelete_process (proc); | |
6892 | else if (XPROCESS (proc)->infd >= 0) | |
6893 | process_send_signal (proc, SIGHUP, Qnil, 1); | |
6894 | } | |
6895 | } | |
6896 | #else /* subprocesses */ | |
6897 | /* Since we have no subprocesses, this does nothing. */ | |
6898 | #endif /* subprocesses */ | |
6720a7fb JB |
6899 | } |
6900 | ||
a7ca3326 | 6901 | DEFUN ("waiting-for-user-input-p", Fwaiting_for_user_input_p, |
16a97296 | 6902 | Swaiting_for_user_input_p, 0, 0, 0, |
1aa8d505 | 6903 | doc: /* Return non-nil if Emacs is waiting for input from the user. |
77defa9a EZ |
6904 | This is intended for use by asynchronous process output filters and sentinels. */) |
6905 | (void) | |
6906 | { | |
6907 | #ifdef subprocesses | |
6908 | return (waiting_for_user_input_p ? Qt : Qnil); | |
6909 | #else | |
6910 | return Qnil; | |
6911 | #endif | |
6912 | } | |
6913 | ||
d568829b EZ |
6914 | /* Stop reading input from keyboard sources. */ |
6915 | ||
6916 | void | |
6917 | hold_keyboard_input (void) | |
6918 | { | |
6919 | kbd_is_on_hold = 1; | |
6920 | } | |
6921 | ||
6922 | /* Resume reading input from keyboard sources. */ | |
6923 | ||
6924 | void | |
6925 | unhold_keyboard_input (void) | |
6926 | { | |
6927 | kbd_is_on_hold = 0; | |
6928 | } | |
6929 | ||
0bce5d9e | 6930 | /* Return true if keyboard input is on hold, zero otherwise. */ |
d568829b | 6931 | |
0bce5d9e | 6932 | bool |
d568829b EZ |
6933 | kbd_on_hold_p (void) |
6934 | { | |
6935 | return kbd_is_on_hold; | |
6936 | } | |
6937 | ||
f388c88a EZ |
6938 | \f |
6939 | /* Enumeration of and access to system processes a-la ps(1). */ | |
6940 | ||
934e2a68 EZ |
6941 | DEFUN ("list-system-processes", Flist_system_processes, Slist_system_processes, |
6942 | 0, 0, 0, | |
6943 | doc: /* Return a list of numerical process IDs of all running processes. | |
6944 | If this functionality is unsupported, return nil. | |
6945 | ||
f388c88a EZ |
6946 | See `process-attributes' for getting attributes of a process given its ID. */) |
6947 | (void) | |
6948 | { | |
6949 | return list_system_processes (); | |
6950 | } | |
6951 | ||
6952 | DEFUN ("process-attributes", Fprocess_attributes, | |
6953 | Sprocess_attributes, 1, 1, 0, | |
6954 | doc: /* Return attributes of the process given by its PID, a number. | |
6955 | ||
6956 | Value is an alist where each element is a cons cell of the form | |
6957 | ||
6958 | \(KEY . VALUE) | |
6959 | ||
6960 | If this functionality is unsupported, the value is nil. | |
6961 | ||
6962 | See `list-system-processes' for getting a list of all process IDs. | |
6963 | ||
6964 | The KEYs of the attributes that this function may return are listed | |
6965 | below, together with the type of the associated VALUE (in parentheses). | |
6966 | Not all platforms support all of these attributes; unsupported | |
6967 | attributes will not appear in the returned alist. | |
6968 | Unless explicitly indicated otherwise, numbers can have either | |
6969 | integer or floating point values. | |
6970 | ||
6971 | euid -- Effective user User ID of the process (number) | |
6972 | user -- User name corresponding to euid (string) | |
6973 | egid -- Effective user Group ID of the process (number) | |
6974 | group -- Group name corresponding to egid (string) | |
6975 | comm -- Command name (executable name only) (string) | |
6976 | state -- Process state code, such as "S", "R", or "T" (string) | |
6977 | ppid -- Parent process ID (number) | |
6978 | pgrp -- Process group ID (number) | |
6979 | sess -- Session ID, i.e. process ID of session leader (number) | |
6980 | ttname -- Controlling tty name (string) | |
6981 | tpgid -- ID of foreground process group on the process's tty (number) | |
6982 | minflt -- number of minor page faults (number) | |
6983 | majflt -- number of major page faults (number) | |
6984 | cminflt -- cumulative number of minor page faults (number) | |
6985 | cmajflt -- cumulative number of major page faults (number) | |
d35af63c PE |
6986 | utime -- user time used by the process, in (current-time) format, |
6987 | which is a list of integers (HIGH LOW USEC PSEC) | |
6988 | stime -- system time used by the process (current-time) | |
6989 | time -- sum of utime and stime (current-time) | |
6990 | cutime -- user time used by the process and its children (current-time) | |
6991 | cstime -- system time used by the process and its children (current-time) | |
6992 | ctime -- sum of cutime and cstime (current-time) | |
f388c88a EZ |
6993 | pri -- priority of the process (number) |
6994 | nice -- nice value of the process (number) | |
6995 | thcount -- process thread count (number) | |
d35af63c | 6996 | start -- time the process started (current-time) |
f388c88a EZ |
6997 | vsize -- virtual memory size of the process in KB's (number) |
6998 | rss -- resident set size of the process in KB's (number) | |
d35af63c | 6999 | etime -- elapsed time the process is running, in (HIGH LOW USEC PSEC) format |
f388c88a EZ |
7000 | pcpu -- percents of CPU time used by the process (floating-point number) |
7001 | pmem -- percents of total physical memory used by process's resident set | |
7002 | (floating-point number) | |
7003 | args -- command line which invoked the process (string). */) | |
7004 | ( Lisp_Object pid) | |
7005 | { | |
7006 | return system_process_attributes (pid); | |
7007 | } | |
7008 | ||
fa55d2aa PE |
7009 | /* Arrange to catch SIGCHLD if this hasn't already been arranged. |
7010 | Invoke this after init_process_emacs, and after glib and/or GNUstep | |
7011 | futz with the SIGCHLD handler, but before Emacs forks any children. | |
7012 | This function's caller should block SIGCHLD. */ | |
0dfeed58 | 7013 | |
dae2f5ef PE |
7014 | #ifndef NS_IMPL_GNUSTEP |
7015 | static | |
7016 | #endif | |
c0342369 JD |
7017 | void |
7018 | catch_child_signal (void) | |
7019 | { | |
f019a684 | 7020 | struct sigaction action, old_action; |
c0342369 | 7021 | emacs_sigaction_init (&action, deliver_child_signal); |
dae2f5ef | 7022 | block_child_signal (); |
f019a684 PE |
7023 | sigaction (SIGCHLD, &action, &old_action); |
7024 | eassert (! (old_action.sa_flags & SA_SIGINFO)); | |
fa55d2aa | 7025 | |
dae2f5ef PE |
7026 | if (old_action.sa_handler != deliver_child_signal) |
7027 | lib_child_handler | |
7028 | = (old_action.sa_handler == SIG_DFL || old_action.sa_handler == SIG_IGN | |
7029 | ? dummy_handler | |
7030 | : old_action.sa_handler); | |
7031 | unblock_child_signal (); | |
c0342369 JD |
7032 | } |
7033 | ||
f388c88a | 7034 | \f |
b82da769 GM |
7035 | /* This is not called "init_process" because that is the name of a |
7036 | Mach system call, so it would cause problems on Darwin systems. */ | |
f388c88a | 7037 | void |
b82da769 | 7038 | init_process_emacs (void) |
f388c88a EZ |
7039 | { |
7040 | #ifdef subprocesses | |
7041 | register int i; | |
7042 | ||
7043 | inhibit_sentinels = 0; | |
7044 | ||
dae2f5ef PE |
7045 | #ifndef CANNOT_DUMP |
7046 | if (! noninteractive || initialized) | |
7047 | #endif | |
7048 | { | |
8f43ce49 | 7049 | #if defined HAVE_GLIB && !defined WINDOWSNT |
dae2f5ef PE |
7050 | /* Tickle glib's child-handling code. Ask glib to wait for Emacs itself; |
7051 | this should always fail, but is enough to initialize glib's | |
8f43ce49 PE |
7052 | private SIGCHLD handler, allowing catch_child_signal to copy |
7053 | it into lib_child_handler. */ | |
dae2f5ef PE |
7054 | g_source_unref (g_child_watch_source_new (getpid ())); |
7055 | #endif | |
7056 | catch_child_signal (); | |
7057 | } | |
7058 | ||
f388c88a EZ |
7059 | FD_ZERO (&input_wait_mask); |
7060 | FD_ZERO (&non_keyboard_wait_mask); | |
7061 | FD_ZERO (&non_process_wait_mask); | |
3fad2ad2 | 7062 | FD_ZERO (&write_mask); |
f388c88a | 7063 | max_process_desc = 0; |
3fad2ad2 | 7064 | memset (fd_callback_info, 0, sizeof (fd_callback_info)); |
f388c88a EZ |
7065 | |
7066 | #ifdef NON_BLOCKING_CONNECT | |
7067 | FD_ZERO (&connect_wait_mask); | |
7068 | num_pending_connects = 0; | |
7069 | #endif | |
7070 | ||
7071 | #ifdef ADAPTIVE_READ_BUFFERING | |
7072 | process_output_delay_count = 0; | |
7073 | process_output_skip = 0; | |
7074 | #endif | |
7075 | ||
7076 | /* Don't do this, it caused infinite select loops. The display | |
7077 | method should call add_keyboard_wait_descriptor on stdin if it | |
7078 | needs that. */ | |
7079 | #if 0 | |
7080 | FD_SET (0, &input_wait_mask); | |
7081 | #endif | |
7082 | ||
7083 | Vprocess_alist = Qnil; | |
f388c88a | 7084 | deleted_pid_list = Qnil; |
f388c88a EZ |
7085 | for (i = 0; i < MAXDESC; i++) |
7086 | { | |
7087 | chan_process[i] = Qnil; | |
7088 | proc_buffered_char[i] = -1; | |
7089 | } | |
7090 | memset (proc_decode_coding_system, 0, sizeof proc_decode_coding_system); | |
7091 | memset (proc_encode_coding_system, 0, sizeof proc_encode_coding_system); | |
7092 | #ifdef DATAGRAM_SOCKETS | |
7093 | memset (datagram_address, 0, sizeof datagram_address); | |
7094 | #endif | |
7095 | ||
f388c88a EZ |
7096 | { |
7097 | Lisp_Object subfeatures = Qnil; | |
7098 | const struct socket_options *sopt; | |
7099 | ||
7100 | #define ADD_SUBFEATURE(key, val) \ | |
7101 | subfeatures = pure_cons (pure_cons (key, pure_cons (val, Qnil)), subfeatures) | |
7102 | ||
7103 | #ifdef NON_BLOCKING_CONNECT | |
7104 | ADD_SUBFEATURE (QCnowait, Qt); | |
7105 | #endif | |
7106 | #ifdef DATAGRAM_SOCKETS | |
7107 | ADD_SUBFEATURE (QCtype, Qdatagram); | |
7108 | #endif | |
7109 | #ifdef HAVE_SEQPACKET | |
7110 | ADD_SUBFEATURE (QCtype, Qseqpacket); | |
7111 | #endif | |
7112 | #ifdef HAVE_LOCAL_SOCKETS | |
7113 | ADD_SUBFEATURE (QCfamily, Qlocal); | |
7114 | #endif | |
7115 | ADD_SUBFEATURE (QCfamily, Qipv4); | |
7116 | #ifdef AF_INET6 | |
7117 | ADD_SUBFEATURE (QCfamily, Qipv6); | |
7118 | #endif | |
7119 | #ifdef HAVE_GETSOCKNAME | |
7120 | ADD_SUBFEATURE (QCservice, Qt); | |
7121 | #endif | |
f388c88a | 7122 | ADD_SUBFEATURE (QCserver, Qt); |
f388c88a EZ |
7123 | |
7124 | for (sopt = socket_options; sopt->name; sopt++) | |
7125 | subfeatures = pure_cons (intern_c_string (sopt->name), subfeatures); | |
7126 | ||
7127 | Fprovide (intern_c_string ("make-network-process"), subfeatures); | |
7128 | } | |
f388c88a EZ |
7129 | |
7130 | #if defined (DARWIN_OS) | |
7131 | /* PTYs are broken on Darwin < 6, but are sometimes useful for interactive | |
7132 | processes. As such, we only change the default value. */ | |
7133 | if (initialized) | |
7134 | { | |
f44bd759 PE |
7135 | char const *release = (STRINGP (Voperating_system_release) |
7136 | ? SSDATA (Voperating_system_release) | |
7137 | : 0); | |
6de0e799 | 7138 | if (!release || !release[0] || (release[0] < '7' && release[1] == '.')) { |
f388c88a EZ |
7139 | Vprocess_connection_type = Qnil; |
7140 | } | |
7141 | } | |
7142 | #endif | |
7143 | #endif /* subprocesses */ | |
7144 | kbd_is_on_hold = 0; | |
7145 | } | |
7146 | ||
7147 | void | |
7148 | syms_of_process (void) | |
7149 | { | |
7150 | #ifdef subprocesses | |
7151 | ||
cd3520a4 JB |
7152 | DEFSYM (Qprocessp, "processp"); |
7153 | DEFSYM (Qrun, "run"); | |
7154 | DEFSYM (Qstop, "stop"); | |
7155 | DEFSYM (Qsignal, "signal"); | |
f388c88a EZ |
7156 | |
7157 | /* Qexit is already staticpro'd by syms_of_eval; don't staticpro it | |
7158 | here again. | |
934e2a68 | 7159 | |
f388c88a EZ |
7160 | Qexit = intern_c_string ("exit"); |
7161 | staticpro (&Qexit); */ | |
934e2a68 | 7162 | |
cd3520a4 JB |
7163 | DEFSYM (Qopen, "open"); |
7164 | DEFSYM (Qclosed, "closed"); | |
7165 | DEFSYM (Qconnect, "connect"); | |
7166 | DEFSYM (Qfailed, "failed"); | |
7167 | DEFSYM (Qlisten, "listen"); | |
7168 | DEFSYM (Qlocal, "local"); | |
7169 | DEFSYM (Qipv4, "ipv4"); | |
f388c88a | 7170 | #ifdef AF_INET6 |
cd3520a4 JB |
7171 | DEFSYM (Qipv6, "ipv6"); |
7172 | #endif | |
7173 | DEFSYM (Qdatagram, "datagram"); | |
7174 | DEFSYM (Qseqpacket, "seqpacket"); | |
7175 | ||
7176 | DEFSYM (QCport, ":port"); | |
7177 | DEFSYM (QCspeed, ":speed"); | |
7178 | DEFSYM (QCprocess, ":process"); | |
7179 | ||
7180 | DEFSYM (QCbytesize, ":bytesize"); | |
7181 | DEFSYM (QCstopbits, ":stopbits"); | |
7182 | DEFSYM (QCparity, ":parity"); | |
7183 | DEFSYM (Qodd, "odd"); | |
7184 | DEFSYM (Qeven, "even"); | |
7185 | DEFSYM (QCflowcontrol, ":flowcontrol"); | |
7186 | DEFSYM (Qhw, "hw"); | |
7187 | DEFSYM (Qsw, "sw"); | |
7188 | DEFSYM (QCsummary, ":summary"); | |
7189 | ||
7190 | DEFSYM (Qreal, "real"); | |
7191 | DEFSYM (Qnetwork, "network"); | |
7192 | DEFSYM (Qserial, "serial"); | |
7193 | DEFSYM (QCbuffer, ":buffer"); | |
7194 | DEFSYM (QChost, ":host"); | |
7195 | DEFSYM (QCservice, ":service"); | |
7196 | DEFSYM (QClocal, ":local"); | |
7197 | DEFSYM (QCremote, ":remote"); | |
7198 | DEFSYM (QCcoding, ":coding"); | |
7199 | DEFSYM (QCserver, ":server"); | |
7200 | DEFSYM (QCnowait, ":nowait"); | |
7201 | DEFSYM (QCsentinel, ":sentinel"); | |
7202 | DEFSYM (QClog, ":log"); | |
7203 | DEFSYM (QCnoquery, ":noquery"); | |
7204 | DEFSYM (QCstop, ":stop"); | |
7205 | DEFSYM (QCoptions, ":options"); | |
7206 | DEFSYM (QCplist, ":plist"); | |
7207 | ||
7208 | DEFSYM (Qlast_nonmenu_event, "last-nonmenu-event"); | |
934e2a68 | 7209 | |
f388c88a | 7210 | staticpro (&Vprocess_alist); |
f388c88a | 7211 | staticpro (&deleted_pid_list); |
934e2a68 | 7212 | |
f388c88a | 7213 | #endif /* subprocesses */ |
6720a7fb | 7214 | |
cd3520a4 JB |
7215 | DEFSYM (QCname, ":name"); |
7216 | DEFSYM (QCtype, ":type"); | |
7217 | ||
7218 | DEFSYM (Qeuid, "euid"); | |
7219 | DEFSYM (Qegid, "egid"); | |
7220 | DEFSYM (Quser, "user"); | |
7221 | DEFSYM (Qgroup, "group"); | |
7222 | DEFSYM (Qcomm, "comm"); | |
7223 | DEFSYM (Qstate, "state"); | |
7224 | DEFSYM (Qppid, "ppid"); | |
7225 | DEFSYM (Qpgrp, "pgrp"); | |
7226 | DEFSYM (Qsess, "sess"); | |
7227 | DEFSYM (Qttname, "ttname"); | |
7228 | DEFSYM (Qtpgid, "tpgid"); | |
7229 | DEFSYM (Qminflt, "minflt"); | |
7230 | DEFSYM (Qmajflt, "majflt"); | |
7231 | DEFSYM (Qcminflt, "cminflt"); | |
7232 | DEFSYM (Qcmajflt, "cmajflt"); | |
7233 | DEFSYM (Qutime, "utime"); | |
7234 | DEFSYM (Qstime, "stime"); | |
7235 | DEFSYM (Qtime, "time"); | |
7236 | DEFSYM (Qcutime, "cutime"); | |
7237 | DEFSYM (Qcstime, "cstime"); | |
7238 | DEFSYM (Qctime, "ctime"); | |
1aa8d505 SM |
7239 | DEFSYM (Qinternal_default_process_sentinel, |
7240 | "internal-default-process-sentinel"); | |
7241 | DEFSYM (Qinternal_default_process_filter, | |
7242 | "internal-default-process-filter"); | |
cd3520a4 JB |
7243 | DEFSYM (Qpri, "pri"); |
7244 | DEFSYM (Qnice, "nice"); | |
7245 | DEFSYM (Qthcount, "thcount"); | |
7246 | DEFSYM (Qstart, "start"); | |
7247 | DEFSYM (Qvsize, "vsize"); | |
7248 | DEFSYM (Qrss, "rss"); | |
7249 | DEFSYM (Qetime, "etime"); | |
7250 | DEFSYM (Qpcpu, "pcpu"); | |
7251 | DEFSYM (Qpmem, "pmem"); | |
7252 | DEFSYM (Qargs, "args"); | |
9057ff80 | 7253 | |
29208e82 | 7254 | DEFVAR_BOOL ("delete-exited-processes", delete_exited_processes, |
fb7ada5f | 7255 | doc: /* Non-nil means delete processes immediately when they exit. |
f388c88a EZ |
7256 | A value of nil means don't delete them until `list-processes' is run. */); |
7257 | ||
7258 | delete_exited_processes = 1; | |
7259 | ||
462aa963 | 7260 | #ifdef subprocesses |
29208e82 | 7261 | DEFVAR_LISP ("process-connection-type", Vprocess_connection_type, |
f388c88a EZ |
7262 | doc: /* Control type of device used to communicate with subprocesses. |
7263 | Values are nil to use a pipe, or t or `pty' to use a pty. | |
7264 | The value has no effect if the system has no ptys or if all ptys are busy: | |
7265 | then a pipe is used in any case. | |
7266 | The value takes effect when `start-process' is called. */); | |
7267 | Vprocess_connection_type = Qt; | |
7268 | ||
7269 | #ifdef ADAPTIVE_READ_BUFFERING | |
29208e82 | 7270 | DEFVAR_LISP ("process-adaptive-read-buffering", Vprocess_adaptive_read_buffering, |
f388c88a EZ |
7271 | doc: /* If non-nil, improve receive buffering by delaying after short reads. |
7272 | On some systems, when Emacs reads the output from a subprocess, the output data | |
7273 | is read in very small blocks, potentially resulting in very poor performance. | |
7274 | This behavior can be remedied to some extent by setting this variable to a | |
7275 | non-nil value, as it will automatically delay reading from such processes, to | |
7276 | allow them to produce more output before Emacs tries to read it. | |
7277 | If the value is t, the delay is reset after each write to the process; any other | |
7278 | non-nil value means that the delay is not reset on write. | |
7279 | The variable takes effect when `start-process' is called. */); | |
7280 | Vprocess_adaptive_read_buffering = Qt; | |
7281 | #endif | |
7282 | ||
7283 | defsubr (&Sprocessp); | |
7284 | defsubr (&Sget_process); | |
7285 | defsubr (&Sdelete_process); | |
7286 | defsubr (&Sprocess_status); | |
7287 | defsubr (&Sprocess_exit_status); | |
7288 | defsubr (&Sprocess_id); | |
7289 | defsubr (&Sprocess_name); | |
7290 | defsubr (&Sprocess_tty_name); | |
7291 | defsubr (&Sprocess_command); | |
7292 | defsubr (&Sset_process_buffer); | |
7293 | defsubr (&Sprocess_buffer); | |
7294 | defsubr (&Sprocess_mark); | |
7295 | defsubr (&Sset_process_filter); | |
7296 | defsubr (&Sprocess_filter); | |
7297 | defsubr (&Sset_process_sentinel); | |
7298 | defsubr (&Sprocess_sentinel); | |
7299 | defsubr (&Sset_process_window_size); | |
7300 | defsubr (&Sset_process_inherit_coding_system_flag); | |
7301 | defsubr (&Sset_process_query_on_exit_flag); | |
7302 | defsubr (&Sprocess_query_on_exit_flag); | |
7303 | defsubr (&Sprocess_contact); | |
7304 | defsubr (&Sprocess_plist); | |
7305 | defsubr (&Sset_process_plist); | |
f388c88a EZ |
7306 | defsubr (&Sprocess_list); |
7307 | defsubr (&Sstart_process); | |
f388c88a EZ |
7308 | defsubr (&Sserial_process_configure); |
7309 | defsubr (&Smake_serial_process); | |
f388c88a EZ |
7310 | defsubr (&Sset_network_process_option); |
7311 | defsubr (&Smake_network_process); | |
7312 | defsubr (&Sformat_network_address); | |
5e617bc2 | 7313 | #if defined (HAVE_NET_IF_H) |
f388c88a EZ |
7314 | #ifdef SIOCGIFCONF |
7315 | defsubr (&Snetwork_interface_list); | |
7316 | #endif | |
5e617bc2 | 7317 | #if defined (SIOCGIFADDR) || defined (SIOCGIFHWADDR) || defined (SIOCGIFFLAGS) |
f388c88a EZ |
7318 | defsubr (&Snetwork_interface_info); |
7319 | #endif | |
5e617bc2 | 7320 | #endif /* defined (HAVE_NET_IF_H) */ |
f388c88a EZ |
7321 | #ifdef DATAGRAM_SOCKETS |
7322 | defsubr (&Sprocess_datagram_address); | |
7323 | defsubr (&Sset_process_datagram_address); | |
7324 | #endif | |
7325 | defsubr (&Saccept_process_output); | |
7326 | defsubr (&Sprocess_send_region); | |
7327 | defsubr (&Sprocess_send_string); | |
7328 | defsubr (&Sinterrupt_process); | |
7329 | defsubr (&Skill_process); | |
7330 | defsubr (&Squit_process); | |
7331 | defsubr (&Sstop_process); | |
7332 | defsubr (&Scontinue_process); | |
7333 | defsubr (&Sprocess_running_child_p); | |
7334 | defsubr (&Sprocess_send_eof); | |
7335 | defsubr (&Ssignal_process); | |
7336 | defsubr (&Swaiting_for_user_input_p); | |
7337 | defsubr (&Sprocess_type); | |
1aa8d505 SM |
7338 | defsubr (&Sinternal_default_process_sentinel); |
7339 | defsubr (&Sinternal_default_process_filter); | |
f388c88a EZ |
7340 | defsubr (&Sset_process_coding_system); |
7341 | defsubr (&Sprocess_coding_system); | |
7342 | defsubr (&Sset_process_filter_multibyte); | |
7343 | defsubr (&Sprocess_filter_multibyte_p); | |
7344 | ||
7345 | #endif /* subprocesses */ | |
7346 | ||
6720a7fb | 7347 | defsubr (&Sget_buffer_process); |
52a1b894 | 7348 | defsubr (&Sprocess_inherit_coding_system_flag); |
934e2a68 | 7349 | defsubr (&Slist_system_processes); |
a20878b6 | 7350 | defsubr (&Sprocess_attributes); |
6720a7fb | 7351 | } |