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 | |
2878ba7e | 326 | /* The largest descriptor currently in use for a process object; -1 if none. */ |
7d0e672e RS |
327 | static int max_process_desc; |
328 | ||
2878ba7e | 329 | /* The largest descriptor currently in use for input; -1 if none. */ |
3fad2ad2 | 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 | ||
2878ba7e PE |
503 | /* FD is no longer an input descriptor; update max_input_desc accordingly. */ |
504 | ||
505 | static void | |
506 | delete_input_desc (int fd) | |
507 | { | |
508 | if (fd == max_input_desc) | |
509 | { | |
510 | do | |
511 | fd--; | |
512 | while (0 <= fd && ! (FD_ISSET (fd, &input_wait_mask) | |
513 | || FD_ISSET (fd, &write_mask))); | |
514 | ||
515 | max_input_desc = fd; | |
516 | } | |
517 | } | |
518 | ||
3fad2ad2 J |
519 | /* Stop monitoring file descriptor FD for when write is possible. */ |
520 | ||
521 | void | |
522 | delete_write_fd (int fd) | |
523 | { | |
a54e2c05 | 524 | eassert (fd < MAXDESC); |
3fad2ad2 J |
525 | FD_CLR (fd, &write_mask); |
526 | fd_callback_info[fd].condition &= ~FOR_WRITE; | |
527 | if (fd_callback_info[fd].condition == 0) | |
528 | { | |
529 | fd_callback_info[fd].func = 0; | |
530 | fd_callback_info[fd].data = 0; | |
2878ba7e | 531 | delete_input_desc (fd); |
3fad2ad2 J |
532 | } |
533 | } | |
534 | ||
535 | \f | |
d0d6b7c5 JB |
536 | /* Compute the Lisp form of the process status, p->status, from |
537 | the numeric status that was returned by `wait'. */ | |
538 | ||
bba104c1 | 539 | static Lisp_Object status_convert (int); |
f9738840 | 540 | |
ff6daed3 | 541 | static void |
d3da34e0 | 542 | update_status (struct Lisp_Process *p) |
d0d6b7c5 | 543 | { |
6bfd98e7 | 544 | eassert (p->raw_status_new); |
6a09a33b | 545 | pset_status (p, status_convert (p->raw_status)); |
6bfd98e7 | 546 | p->raw_status_new = 0; |
d0d6b7c5 JB |
547 | } |
548 | ||
177c0ea7 | 549 | /* Convert a process status word in Unix format to |
d0d6b7c5 JB |
550 | the list that we use internally. */ |
551 | ||
ff6daed3 | 552 | static Lisp_Object |
bba104c1 | 553 | status_convert (int w) |
d0d6b7c5 JB |
554 | { |
555 | if (WIFSTOPPED (w)) | |
556 | return Fcons (Qstop, Fcons (make_number (WSTOPSIG (w)), Qnil)); | |
557 | else if (WIFEXITED (w)) | |
13294f95 | 558 | return Fcons (Qexit, Fcons (make_number (WEXITSTATUS (w)), |
d0d6b7c5 JB |
559 | WCOREDUMP (w) ? Qt : Qnil)); |
560 | else if (WIFSIGNALED (w)) | |
561 | return Fcons (Qsignal, Fcons (make_number (WTERMSIG (w)), | |
562 | WCOREDUMP (w) ? Qt : Qnil)); | |
563 | else | |
564 | return Qrun; | |
565 | } | |
566 | ||
567 | /* Given a status-list, extract the three pieces of information | |
568 | and store them individually through the three pointers. */ | |
569 | ||
ff6daed3 | 570 | static void |
0bce5d9e | 571 | decode_status (Lisp_Object l, Lisp_Object *symbol, int *code, bool *coredump) |
d0d6b7c5 JB |
572 | { |
573 | Lisp_Object tem; | |
574 | ||
bcd69aea | 575 | if (SYMBOLP (l)) |
d0d6b7c5 JB |
576 | { |
577 | *symbol = l; | |
578 | *code = 0; | |
579 | *coredump = 0; | |
580 | } | |
581 | else | |
582 | { | |
70949dac KR |
583 | *symbol = XCAR (l); |
584 | tem = XCDR (l); | |
585 | *code = XFASTINT (XCAR (tem)); | |
586 | tem = XCDR (tem); | |
d0d6b7c5 JB |
587 | *coredump = !NILP (tem); |
588 | } | |
589 | } | |
590 | ||
591 | /* Return a string describing a process status list. */ | |
592 | ||
116c423c | 593 | static Lisp_Object |
d3da34e0 | 594 | status_message (struct Lisp_Process *p) |
d0d6b7c5 | 595 | { |
4d2b044c | 596 | Lisp_Object status = p->status; |
d0d6b7c5 | 597 | Lisp_Object symbol; |
0bce5d9e PE |
598 | int code; |
599 | bool coredump; | |
d0d6b7c5 JB |
600 | Lisp_Object string, string2; |
601 | ||
602 | decode_status (status, &symbol, &code, &coredump); | |
603 | ||
604 | if (EQ (symbol, Qsignal) || EQ (symbol, Qstop)) | |
605 | { | |
aa1ba90e | 606 | char const *signame; |
ca9c0567 | 607 | synchronize_system_messages_locale (); |
68c45bf0 | 608 | signame = strsignal (code); |
b97ad9ea | 609 | if (signame == 0) |
66bd43d1 KH |
610 | string = build_string ("unknown"); |
611 | else | |
612 | { | |
613 | int c1, c2; | |
614 | ||
d7ea76b4 | 615 | string = build_unibyte_string (signame); |
66bd43d1 KH |
616 | if (! NILP (Vlocale_coding_system)) |
617 | string = (code_convert_string_norecord | |
618 | (string, Vlocale_coding_system, 0)); | |
42a5b22f | 619 | c1 = STRING_CHAR (SDATA (string)); |
5da9919f | 620 | c2 = downcase (c1); |
66bd43d1 | 621 | if (c1 != c2) |
4735b74e | 622 | Faset (string, make_number (0), make_number (c2)); |
66bd43d1 | 623 | } |
d0d6b7c5 | 624 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
d0d6b7c5 JB |
625 | return concat2 (string, string2); |
626 | } | |
627 | else if (EQ (symbol, Qexit)) | |
628 | { | |
116c423c KS |
629 | if (NETCONN1_P (p)) |
630 | return build_string (code == 0 ? "deleted\n" : "connection broken by remote peer\n"); | |
d0d6b7c5 JB |
631 | if (code == 0) |
632 | return build_string ("finished\n"); | |
f2980264 | 633 | string = Fnumber_to_string (make_number (code)); |
d0d6b7c5 | 634 | string2 = build_string (coredump ? " (core dumped)\n" : "\n"); |
e690ca94 KS |
635 | return concat3 (build_string ("exited abnormally with code "), |
636 | string, string2); | |
d0d6b7c5 | 637 | } |
dd2a17ab KS |
638 | else if (EQ (symbol, Qfailed)) |
639 | { | |
640 | string = Fnumber_to_string (make_number (code)); | |
641 | string2 = build_string ("\n"); | |
e690ca94 KS |
642 | return concat3 (build_string ("failed with code "), |
643 | string, string2); | |
dd2a17ab | 644 | } |
d0d6b7c5 JB |
645 | else |
646 | return Fcopy_sequence (Fsymbol_name (symbol)); | |
647 | } | |
648 | \f | |
6496aec9 | 649 | enum { PTY_NAME_SIZE = 24 }; |
9bf58201 | 650 | |
875e6b94 | 651 | /* Open an available pty, returning a file descriptor. |
6496aec9 PE |
652 | Store into PTY_NAME the file name of the terminal corresponding to the pty. |
653 | Return -1 on failure. */ | |
875e6b94 | 654 | |
ff6daed3 | 655 | static int |
6496aec9 | 656 | allocate_pty (char pty_name[PTY_NAME_SIZE]) |
d0d6b7c5 | 657 | { |
6496aec9 | 658 | #ifdef HAVE_PTYS |
d0d6b7c5 JB |
659 | int fd; |
660 | ||
661 | #ifdef PTY_ITERATION | |
662 | PTY_ITERATION | |
663 | #else | |
be02381c | 664 | register int c, i; |
d0d6b7c5 JB |
665 | for (c = FIRST_PTY_LETTER; c <= 'z'; c++) |
666 | for (i = 0; i < 16; i++) | |
667 | #endif | |
668 | { | |
669 | #ifdef PTY_NAME_SPRINTF | |
670 | PTY_NAME_SPRINTF | |
d0d6b7c5 JB |
671 | #else |
672 | sprintf (pty_name, "/dev/pty%c%x", c, i); | |
d0d6b7c5 JB |
673 | #endif /* no PTY_NAME_SPRINTF */ |
674 | ||
4d7c105e RS |
675 | #ifdef PTY_OPEN |
676 | PTY_OPEN; | |
677 | #else /* no PTY_OPEN */ | |
49cdacda | 678 | fd = emacs_open (pty_name, O_RDWR | O_NONBLOCK, 0); |
4d7c105e | 679 | #endif /* no PTY_OPEN */ |
d0d6b7c5 JB |
680 | |
681 | if (fd >= 0) | |
682 | { | |
683 | /* check to make certain that both sides are available | |
684 | this avoids a nasty yet stupid bug in rlogins */ | |
685 | #ifdef PTY_TTY_NAME_SPRINTF | |
686 | PTY_TTY_NAME_SPRINTF | |
d0d6b7c5 | 687 | #else |
63136da6 | 688 | sprintf (pty_name, "/dev/tty%c%x", c, i); |
d0d6b7c5 | 689 | #endif /* no PTY_TTY_NAME_SPRINTF */ |
73dcdb9f | 690 | if (faccessat (AT_FDCWD, pty_name, R_OK | W_OK, AT_EACCESS) != 0) |
d0d6b7c5 | 691 | { |
68c45bf0 | 692 | emacs_close (fd); |
132d0475 | 693 | # ifndef __sgi |
d0d6b7c5 | 694 | continue; |
34967d0f | 695 | # else |
d0d6b7c5 | 696 | return -1; |
132d0475 | 697 | # endif /* __sgi */ |
d0d6b7c5 | 698 | } |
d0d6b7c5 JB |
699 | setup_pty (fd); |
700 | return fd; | |
701 | } | |
702 | } | |
6496aec9 | 703 | #endif /* HAVE_PTYS */ |
d0d6b7c5 JB |
704 | return -1; |
705 | } | |
d0d6b7c5 | 706 | \f |
ff6daed3 | 707 | static Lisp_Object |
d3da34e0 | 708 | make_process (Lisp_Object name) |
d0d6b7c5 JB |
709 | { |
710 | register Lisp_Object val, tem, name1; | |
711 | register struct Lisp_Process *p; | |
31c286f7 PE |
712 | char suffix[sizeof "<>" + INT_STRLEN_BOUND (printmax_t)]; |
713 | printmax_t i; | |
d0d6b7c5 | 714 | |
98423852 | 715 | p = allocate_process (); |
62efea5e DA |
716 | /* Initialize Lisp data. Note that allocate_process initializes all |
717 | Lisp data to nil, so do it only for slots which should not be nil. */ | |
6a09a33b PE |
718 | pset_status (p, Qrun); |
719 | pset_mark (p, Fmake_marker ()); | |
d0d6b7c5 | 720 | |
62efea5e DA |
721 | /* Initialize non-Lisp data. Note that allocate_process zeroes out all |
722 | non-Lisp data, so do it only for slots which should not be zero. */ | |
723 | p->infd = -1; | |
724 | p->outfd = -1; | |
6b61353c | 725 | |
8af55556 TZ |
726 | #ifdef HAVE_GNUTLS |
727 | p->gnutls_initstage = GNUTLS_STAGE_EMPTY; | |
728 | #endif | |
729 | ||
d0d6b7c5 JB |
730 | /* If name is already in use, modify it until it is unused. */ |
731 | ||
732 | name1 = name; | |
733 | for (i = 1; ; i++) | |
734 | { | |
735 | tem = Fget_process (name1); | |
736 | if (NILP (tem)) break; | |
a8290ec3 | 737 | name1 = concat2 (name, make_formatted_string (suffix, "<%"pMd">", i)); |
d0d6b7c5 JB |
738 | } |
739 | name = name1; | |
6a09a33b | 740 | pset_name (p, name); |
1aa8d505 SM |
741 | pset_sentinel (p, Qinternal_default_process_sentinel); |
742 | pset_filter (p, Qinternal_default_process_filter); | |
23d6bb9c | 743 | XSETPROCESS (val, p); |
d0d6b7c5 JB |
744 | Vprocess_alist = Fcons (Fcons (name, val), Vprocess_alist); |
745 | return val; | |
746 | } | |
747 | ||
ff6daed3 | 748 | static void |
d3da34e0 | 749 | remove_process (register Lisp_Object proc) |
d0d6b7c5 JB |
750 | { |
751 | register Lisp_Object pair; | |
752 | ||
753 | pair = Frassq (proc, Vprocess_alist); | |
754 | Vprocess_alist = Fdelq (pair, Vprocess_alist); | |
d0d6b7c5 JB |
755 | |
756 | deactivate_process (proc); | |
757 | } | |
03f04413 | 758 | |
d0d6b7c5 JB |
759 | \f |
760 | DEFUN ("processp", Fprocessp, Sprocessp, 1, 1, 0, | |
fdb82f93 | 761 | doc: /* Return t if OBJECT is a process. */) |
5842a27b | 762 | (Lisp_Object object) |
d0d6b7c5 | 763 | { |
4ee3e309 | 764 | return PROCESSP (object) ? Qt : Qnil; |
d0d6b7c5 JB |
765 | } |
766 | ||
767 | DEFUN ("get-process", Fget_process, Sget_process, 1, 1, 0, | |
fdb82f93 | 768 | doc: /* Return the process named NAME, or nil if there is none. */) |
5842a27b | 769 | (register Lisp_Object name) |
d0d6b7c5 | 770 | { |
bcd69aea | 771 | if (PROCESSP (name)) |
d0d6b7c5 | 772 | return name; |
b7826503 | 773 | CHECK_STRING (name); |
d0d6b7c5 JB |
774 | return Fcdr (Fassoc (name, Vprocess_alist)); |
775 | } | |
776 | ||
ebb9e16f JB |
777 | /* This is how commands for the user decode process arguments. It |
778 | accepts a process, a process name, a buffer, a buffer name, or nil. | |
779 | Buffers denote the first process in the buffer, and nil denotes the | |
780 | current buffer. */ | |
d0d6b7c5 | 781 | |
77b221b1 | 782 | static Lisp_Object |
d3da34e0 | 783 | get_process (register Lisp_Object name) |
d0d6b7c5 | 784 | { |
1619761d KH |
785 | register Lisp_Object proc, obj; |
786 | if (STRINGP (name)) | |
787 | { | |
788 | obj = Fget_process (name); | |
789 | if (NILP (obj)) | |
790 | obj = Fget_buffer (name); | |
791 | if (NILP (obj)) | |
d5db4077 | 792 | error ("Process %s does not exist", SDATA (name)); |
1619761d KH |
793 | } |
794 | else if (NILP (name)) | |
795 | obj = Fcurrent_buffer (); | |
d0d6b7c5 | 796 | else |
1619761d KH |
797 | obj = name; |
798 | ||
799 | /* Now obj should be either a buffer object or a process object. | |
800 | */ | |
801 | if (BUFFERP (obj)) | |
d0d6b7c5 | 802 | { |
1619761d | 803 | proc = Fget_buffer_process (obj); |
d0d6b7c5 | 804 | if (NILP (proc)) |
4b4deea2 | 805 | error ("Buffer %s has no process", SDATA (BVAR (XBUFFER (obj), name))); |
d0d6b7c5 | 806 | } |
d0d6b7c5 | 807 | else |
1619761d | 808 | { |
b7826503 | 809 | CHECK_PROCESS (obj); |
1619761d KH |
810 | proc = obj; |
811 | } | |
812 | return proc; | |
d0d6b7c5 JB |
813 | } |
814 | ||
a5cfdda8 | 815 | |
a5cfdda8 KS |
816 | /* Fdelete_process promises to immediately forget about the process, but in |
817 | reality, Emacs needs to remember those processes until they have been | |
0b3d4a47 | 818 | treated by the SIGCHLD handler and waitpid has been invoked on them; |
bb5f74ee PE |
819 | otherwise they might fill up the kernel's process table. |
820 | ||
821 | Some processes created by call-process are also put onto this list. */ | |
a5cfdda8 | 822 | static Lisp_Object deleted_pid_list; |
a5cfdda8 | 823 | |
bb5f74ee PE |
824 | void |
825 | record_deleted_pid (pid_t pid) | |
826 | { | |
bb5f74ee PE |
827 | deleted_pid_list = Fcons (make_fixnum_or_float (pid), |
828 | /* GC treated elements set to nil. */ | |
829 | Fdelq (Qnil, deleted_pid_list)); | |
830 | ||
bb5f74ee PE |
831 | } |
832 | ||
d0d6b7c5 | 833 | DEFUN ("delete-process", Fdelete_process, Sdelete_process, 1, 1, 0, |
fdb82f93 PJ |
834 | doc: /* Delete PROCESS: kill it and forget about it immediately. |
835 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
836 | nil, indicating the current buffer's process. */) | |
5842a27b | 837 | (register Lisp_Object process) |
d0d6b7c5 | 838 | { |
ff6daed3 KS |
839 | register struct Lisp_Process *p; |
840 | ||
4ee3e309 | 841 | process = get_process (process); |
ff6daed3 KS |
842 | p = XPROCESS (process); |
843 | ||
6bfd98e7 | 844 | p->raw_status_new = 0; |
d888760c | 845 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 846 | { |
6c6f1994 | 847 | pset_status (p, list2 (Qexit, make_number (0))); |
60f0fb11 | 848 | p->tick = ++process_tick; |
ff6daed3 | 849 | status_notify (p); |
e42bdf01 | 850 | redisplay_preserve_echo_area (13); |
d0d6b7c5 | 851 | } |
35fb8050 | 852 | else |
d0d6b7c5 | 853 | { |
35fb8050 PE |
854 | if (p->alive) |
855 | record_kill_process (p); | |
856 | ||
857 | if (p->infd >= 0) | |
a5cfdda8 | 858 | { |
35fb8050 PE |
859 | /* Update P's status, since record_kill_process will make the |
860 | SIGCHLD handler update deleted_pid_list, not *P. */ | |
861 | Lisp_Object symbol; | |
862 | if (p->raw_status_new) | |
863 | update_status (p); | |
864 | symbol = CONSP (p->status) ? XCAR (p->status) : p->status; | |
865 | if (! (EQ (symbol, Qsignal) || EQ (symbol, Qexit))) | |
866 | pset_status (p, list2 (Qsignal, make_number (SIGKILL))); | |
867 | ||
60f0fb11 | 868 | p->tick = ++process_tick; |
a5cfdda8 | 869 | status_notify (p); |
e42bdf01 | 870 | redisplay_preserve_echo_area (13); |
a5cfdda8 | 871 | } |
d0d6b7c5 | 872 | } |
4ee3e309 | 873 | remove_process (process); |
d0d6b7c5 JB |
874 | return Qnil; |
875 | } | |
876 | \f | |
877 | DEFUN ("process-status", Fprocess_status, Sprocess_status, 1, 1, 0, | |
fdb82f93 PJ |
878 | doc: /* Return the status of PROCESS. |
879 | The returned value is one of the following symbols: | |
880 | run -- for a process that is running. | |
881 | stop -- for a process stopped but continuable. | |
882 | exit -- for a process that has exited. | |
883 | signal -- for a process that has got a fatal signal. | |
884 | open -- for a network stream connection that is open. | |
e690ca94 | 885 | listen -- for a network stream server that is listening. |
fdb82f93 | 886 | closed -- for a network stream connection that is closed. |
e4984112 KS |
887 | connect -- when waiting for a non-blocking connection to complete. |
888 | failed -- when a non-blocking connection has failed. | |
fdb82f93 PJ |
889 | nil -- if arg is a process name and no such process exists. |
890 | PROCESS may be a process, a buffer, the name of a process, or | |
891 | nil, indicating the current buffer's process. */) | |
5842a27b | 892 | (register Lisp_Object process) |
d0d6b7c5 JB |
893 | { |
894 | register struct Lisp_Process *p; | |
895 | register Lisp_Object status; | |
343f4114 | 896 | |
4ee3e309 EN |
897 | if (STRINGP (process)) |
898 | process = Fget_process (process); | |
343f4114 | 899 | else |
4ee3e309 | 900 | process = get_process (process); |
343f4114 | 901 | |
4ee3e309 EN |
902 | if (NILP (process)) |
903 | return process; | |
343f4114 | 904 | |
4ee3e309 | 905 | p = XPROCESS (process); |
6bfd98e7 | 906 | if (p->raw_status_new) |
d0d6b7c5 | 907 | update_status (p); |
4d2b044c | 908 | status = p->status; |
bcd69aea | 909 | if (CONSP (status)) |
70949dac | 910 | status = XCAR (status); |
d888760c | 911 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
d0d6b7c5 | 912 | { |
e690ca94 | 913 | if (EQ (status, Qexit)) |
d0d6b7c5 | 914 | status = Qclosed; |
4d2b044c | 915 | else if (EQ (p->command, Qt)) |
e690ca94 KS |
916 | status = Qstop; |
917 | else if (EQ (status, Qrun)) | |
918 | status = Qopen; | |
d0d6b7c5 JB |
919 | } |
920 | return status; | |
921 | } | |
922 | ||
923 | DEFUN ("process-exit-status", Fprocess_exit_status, Sprocess_exit_status, | |
924 | 1, 1, 0, | |
fdb82f93 PJ |
925 | doc: /* Return the exit status of PROCESS or the signal number that killed it. |
926 | If PROCESS has not yet exited or died, return 0. */) | |
5842a27b | 927 | (register Lisp_Object process) |
d0d6b7c5 | 928 | { |
b7826503 | 929 | CHECK_PROCESS (process); |
6bfd98e7 | 930 | if (XPROCESS (process)->raw_status_new) |
4ee3e309 | 931 | update_status (XPROCESS (process)); |
4d2b044c DA |
932 | if (CONSP (XPROCESS (process)->status)) |
933 | return XCAR (XCDR (XPROCESS (process)->status)); | |
d0d6b7c5 JB |
934 | return make_number (0); |
935 | } | |
936 | ||
937 | DEFUN ("process-id", Fprocess_id, Sprocess_id, 1, 1, 0, | |
fdb82f93 | 938 | doc: /* Return the process id of PROCESS. |
f3d9532b | 939 | This is the pid of the external process which PROCESS uses or talks to. |
fdb82f93 | 940 | For a network connection, this value is nil. */) |
5842a27b | 941 | (register Lisp_Object process) |
d0d6b7c5 | 942 | { |
d311d28c | 943 | pid_t pid; |
d30fe779 | 944 | |
b7826503 | 945 | CHECK_PROCESS (process); |
d30fe779 EZ |
946 | pid = XPROCESS (process)->pid; |
947 | return (pid ? make_fixnum_or_float (pid) : Qnil); | |
d0d6b7c5 JB |
948 | } |
949 | ||
950 | DEFUN ("process-name", Fprocess_name, Sprocess_name, 1, 1, 0, | |
fdb82f93 PJ |
951 | doc: /* Return the name of PROCESS, as a string. |
952 | This is the name of the program invoked in PROCESS, | |
953 | possibly modified to make it unique among process names. */) | |
5842a27b | 954 | (register Lisp_Object process) |
d0d6b7c5 | 955 | { |
b7826503 | 956 | CHECK_PROCESS (process); |
4d2b044c | 957 | return XPROCESS (process)->name; |
d0d6b7c5 JB |
958 | } |
959 | ||
960 | DEFUN ("process-command", Fprocess_command, Sprocess_command, 1, 1, 0, | |
fdb82f93 PJ |
961 | doc: /* Return the command that was executed to start PROCESS. |
962 | This is a list of strings, the first string being the program executed | |
963 | and the rest of the strings being the arguments given to it. | |
d888760c GM |
964 | For a network or serial process, this is nil (process is running) or t |
965 | \(process is stopped). */) | |
5842a27b | 966 | (register Lisp_Object process) |
d0d6b7c5 | 967 | { |
b7826503 | 968 | CHECK_PROCESS (process); |
4d2b044c | 969 | return XPROCESS (process)->command; |
d0d6b7c5 JB |
970 | } |
971 | ||
3b9a3dfa | 972 | DEFUN ("process-tty-name", Fprocess_tty_name, Sprocess_tty_name, 1, 1, 0, |
fdb82f93 PJ |
973 | doc: /* Return the name of the terminal PROCESS uses, or nil if none. |
974 | This is the terminal that the process itself reads and writes on, | |
975 | not the name of the pty that Emacs uses to talk with that terminal. */) | |
5842a27b | 976 | (register Lisp_Object process) |
3b9a3dfa | 977 | { |
b7826503 | 978 | CHECK_PROCESS (process); |
4d2b044c | 979 | return XPROCESS (process)->tty_name; |
3b9a3dfa RS |
980 | } |
981 | ||
d0d6b7c5 | 982 | DEFUN ("set-process-buffer", Fset_process_buffer, Sset_process_buffer, |
fdb82f93 | 983 | 2, 2, 0, |
76147d94 DD |
984 | doc: /* Set buffer associated with PROCESS to BUFFER (a buffer, or nil). |
985 | Return BUFFER. */) | |
5842a27b | 986 | (register Lisp_Object process, Lisp_Object buffer) |
d0d6b7c5 | 987 | { |
e690ca94 KS |
988 | struct Lisp_Process *p; |
989 | ||
b7826503 | 990 | CHECK_PROCESS (process); |
d0d6b7c5 | 991 | if (!NILP (buffer)) |
b7826503 | 992 | CHECK_BUFFER (buffer); |
e690ca94 | 993 | p = XPROCESS (process); |
6a09a33b | 994 | pset_buffer (p, buffer); |
d888760c | 995 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
6a09a33b | 996 | pset_childp (p, Fplist_put (p->childp, QCbuffer, buffer)); |
03f04413 | 997 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
998 | return buffer; |
999 | } | |
1000 | ||
1001 | DEFUN ("process-buffer", Fprocess_buffer, Sprocess_buffer, | |
fdb82f93 PJ |
1002 | 1, 1, 0, |
1003 | doc: /* Return the buffer PROCESS is associated with. | |
1004 | Output from PROCESS is inserted in this buffer unless PROCESS has a filter. */) | |
5842a27b | 1005 | (register Lisp_Object process) |
d0d6b7c5 | 1006 | { |
b7826503 | 1007 | CHECK_PROCESS (process); |
4d2b044c | 1008 | return XPROCESS (process)->buffer; |
d0d6b7c5 JB |
1009 | } |
1010 | ||
1011 | DEFUN ("process-mark", Fprocess_mark, Sprocess_mark, | |
fdb82f93 PJ |
1012 | 1, 1, 0, |
1013 | doc: /* Return the marker for the end of the last output from PROCESS. */) | |
5842a27b | 1014 | (register Lisp_Object process) |
d0d6b7c5 | 1015 | { |
b7826503 | 1016 | CHECK_PROCESS (process); |
4d2b044c | 1017 | return XPROCESS (process)->mark; |
d0d6b7c5 JB |
1018 | } |
1019 | ||
1020 | DEFUN ("set-process-filter", Fset_process_filter, Sset_process_filter, | |
fdb82f93 | 1021 | 2, 2, 0, |
1aa8d505 | 1022 | doc: /* Give PROCESS the filter function FILTER; nil means default. |
7b82c3b6 | 1023 | A value of t means stop accepting output from the process. |
3452df9e | 1024 | |
1aa8d505 | 1025 | When a process has a non-default filter, its buffer is not used for output. |
3452df9e | 1026 | Instead, each time it does output, the entire string of output is |
177c0ea7 | 1027 | passed to the filter. |
3452df9e | 1028 | |
fdb82f93 | 1029 | The filter gets two arguments: the process and the string of output. |
3452df9e KS |
1030 | The string argument is normally a multibyte string, except: |
1031 | - if the process' input coding system is no-conversion or raw-text, | |
1032 | it is a unibyte string (the non-converted input), or else | |
1033 | - if `default-enable-multibyte-characters' is nil, it is a unibyte | |
1034 | string (the result of converting the decoded input multibyte | |
1035 | string to unibyte with `string-make-unibyte'). */) | |
5842a27b | 1036 | (register Lisp_Object process, Lisp_Object filter) |
d0d6b7c5 | 1037 | { |
471f86b9 | 1038 | struct Lisp_Process *p; |
177c0ea7 | 1039 | |
b7826503 | 1040 | CHECK_PROCESS (process); |
471f86b9 GM |
1041 | p = XPROCESS (process); |
1042 | ||
1043 | /* Don't signal an error if the process' input file descriptor | |
1044 | is closed. This could make debugging Lisp more difficult, | |
1045 | for example when doing something like | |
1046 | ||
1047 | (setq process (start-process ...)) | |
1048 | (debug) | |
1049 | (set-process-filter process ...) */ | |
177c0ea7 | 1050 | |
1aa8d505 SM |
1051 | if (NILP (filter)) |
1052 | filter = Qinternal_default_process_filter; | |
1053 | ||
60f0fb11 | 1054 | if (p->infd >= 0) |
a69281ff | 1055 | { |
4d2b044c | 1056 | if (EQ (filter, Qt) && !EQ (p->status, Qlisten)) |
471f86b9 | 1057 | { |
60f0fb11 SM |
1058 | FD_CLR (p->infd, &input_wait_mask); |
1059 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 1060 | } |
4d2b044c | 1061 | else if (EQ (p->filter, Qt) |
d888760c | 1062 | /* Network or serial process not stopped: */ |
4d2b044c | 1063 | && !EQ (p->command, Qt)) |
471f86b9 | 1064 | { |
60f0fb11 SM |
1065 | FD_SET (p->infd, &input_wait_mask); |
1066 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
471f86b9 | 1067 | } |
a69281ff | 1068 | } |
177c0ea7 | 1069 | |
6a09a33b | 1070 | pset_filter (p, filter); |
d888760c | 1071 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
6a09a33b | 1072 | pset_childp (p, Fplist_put (p->childp, QCfilter, filter)); |
03f04413 | 1073 | setup_process_coding_systems (process); |
d0d6b7c5 JB |
1074 | return filter; |
1075 | } | |
1076 | ||
1077 | DEFUN ("process-filter", Fprocess_filter, Sprocess_filter, | |
fdb82f93 | 1078 | 1, 1, 0, |
1aa8d505 | 1079 | doc: /* Return the filter function of PROCESS. |
fdb82f93 | 1080 | See `set-process-filter' for more info on filter functions. */) |
5842a27b | 1081 | (register Lisp_Object process) |
d0d6b7c5 | 1082 | { |
b7826503 | 1083 | CHECK_PROCESS (process); |
4d2b044c | 1084 | return XPROCESS (process)->filter; |
d0d6b7c5 JB |
1085 | } |
1086 | ||
1087 | DEFUN ("set-process-sentinel", Fset_process_sentinel, Sset_process_sentinel, | |
fdb82f93 | 1088 | 2, 2, 0, |
1aa8d505 | 1089 | doc: /* Give PROCESS the sentinel SENTINEL; nil for default. |
fdb82f93 PJ |
1090 | The sentinel is called as a function when the process changes state. |
1091 | It gets two arguments: the process, and a string describing the change. */) | |
5842a27b | 1092 | (register Lisp_Object process, Lisp_Object sentinel) |
d0d6b7c5 | 1093 | { |
6b61353c KH |
1094 | struct Lisp_Process *p; |
1095 | ||
b7826503 | 1096 | CHECK_PROCESS (process); |
6b61353c KH |
1097 | p = XPROCESS (process); |
1098 | ||
1aa8d505 SM |
1099 | if (NILP (sentinel)) |
1100 | sentinel = Qinternal_default_process_sentinel; | |
1101 | ||
6a09a33b | 1102 | pset_sentinel (p, sentinel); |
d888760c | 1103 | if (NETCONN1_P (p) || SERIALCONN1_P (p)) |
6a09a33b | 1104 | pset_childp (p, Fplist_put (p->childp, QCsentinel, sentinel)); |
d0d6b7c5 JB |
1105 | return sentinel; |
1106 | } | |
1107 | ||
1108 | DEFUN ("process-sentinel", Fprocess_sentinel, Sprocess_sentinel, | |
fdb82f93 | 1109 | 1, 1, 0, |
1aa8d505 | 1110 | doc: /* Return the sentinel of PROCESS. |
fdb82f93 | 1111 | See `set-process-sentinel' for more info on sentinels. */) |
5842a27b | 1112 | (register Lisp_Object process) |
d0d6b7c5 | 1113 | { |
b7826503 | 1114 | CHECK_PROCESS (process); |
4d2b044c | 1115 | return XPROCESS (process)->sentinel; |
d0d6b7c5 JB |
1116 | } |
1117 | ||
396df322 | 1118 | DEFUN ("set-process-window-size", Fset_process_window_size, |
fdb82f93 PJ |
1119 | Sset_process_window_size, 3, 3, 0, |
1120 | doc: /* Tell PROCESS that it has logical window size HEIGHT and WIDTH. */) | |
5842a27b | 1121 | (register Lisp_Object process, Lisp_Object height, Lisp_Object width) |
396df322 | 1122 | { |
b7826503 | 1123 | CHECK_PROCESS (process); |
af5a5a98 AS |
1124 | CHECK_RANGED_INTEGER (height, 0, INT_MAX); |
1125 | CHECK_RANGED_INTEGER (width, 0, INT_MAX); | |
177c0ea7 | 1126 | |
60f0fb11 SM |
1127 | if (XPROCESS (process)->infd < 0 |
1128 | || set_window_size (XPROCESS (process)->infd, | |
471f86b9 | 1129 | XINT (height), XINT (width)) <= 0) |
396df322 RS |
1130 | return Qnil; |
1131 | else | |
1132 | return Qt; | |
1133 | } | |
1134 | ||
52a1b894 | 1135 | DEFUN ("set-process-inherit-coding-system-flag", |
fdb82f93 PJ |
1136 | Fset_process_inherit_coding_system_flag, |
1137 | Sset_process_inherit_coding_system_flag, 2, 2, 0, | |
1138 | doc: /* Determine whether buffer of PROCESS will inherit coding-system. | |
1139 | If the second argument FLAG is non-nil, then the variable | |
1140 | `buffer-file-coding-system' of the buffer associated with PROCESS | |
1141 | will be bound to the value of the coding system used to decode | |
1142 | the process output. | |
1143 | ||
1144 | This is useful when the coding system specified for the process buffer | |
1145 | leaves either the character code conversion or the end-of-line conversion | |
1146 | unspecified, or if the coding system used to decode the process output | |
1147 | is more appropriate for saving the process buffer. | |
1148 | ||
1149 | Binding the variable `inherit-process-coding-system' to non-nil before | |
1150 | starting the process is an alternative way of setting the inherit flag | |
016a35df GM |
1151 | for the process which will run. |
1152 | ||
1153 | This function returns FLAG. */) | |
5842a27b | 1154 | (register Lisp_Object process, Lisp_Object flag) |
52a1b894 | 1155 | { |
b7826503 | 1156 | CHECK_PROCESS (process); |
60f0fb11 | 1157 | XPROCESS (process)->inherit_coding_system_flag = !NILP (flag); |
52a1b894 EZ |
1158 | return flag; |
1159 | } | |
1160 | ||
e690ca94 KS |
1161 | DEFUN ("set-process-query-on-exit-flag", |
1162 | Fset_process_query_on_exit_flag, Sset_process_query_on_exit_flag, | |
1163 | 2, 2, 0, | |
1164 | doc: /* Specify if query is needed for PROCESS when Emacs is exited. | |
f3d9532b | 1165 | If the second argument FLAG is non-nil, Emacs will query the user before |
016a35df GM |
1166 | exiting or killing a buffer if PROCESS is running. This function |
1167 | returns FLAG. */) | |
5842a27b | 1168 | (register Lisp_Object process, Lisp_Object flag) |
d0d6b7c5 | 1169 | { |
b7826503 | 1170 | CHECK_PROCESS (process); |
60f0fb11 | 1171 | XPROCESS (process)->kill_without_query = NILP (flag); |
e690ca94 | 1172 | return flag; |
d0d6b7c5 | 1173 | } |
312c9964 | 1174 | |
e690ca94 KS |
1175 | DEFUN ("process-query-on-exit-flag", |
1176 | Fprocess_query_on_exit_flag, Sprocess_query_on_exit_flag, | |
fdb82f93 | 1177 | 1, 1, 0, |
f3d9532b | 1178 | doc: /* Return the current value of query-on-exit flag for PROCESS. */) |
5842a27b | 1179 | (register Lisp_Object process) |
de282a05 | 1180 | { |
b7826503 | 1181 | CHECK_PROCESS (process); |
60f0fb11 | 1182 | return (XPROCESS (process)->kill_without_query ? Qnil : Qt); |
e690ca94 KS |
1183 | } |
1184 | ||
e690ca94 KS |
1185 | DEFUN ("process-contact", Fprocess_contact, Sprocess_contact, |
1186 | 1, 2, 0, | |
1187 | doc: /* Return the contact info of PROCESS; t for a real child. | |
d888760c GM |
1188 | For a network or serial connection, the value depends on the optional |
1189 | KEY arg. If KEY is nil, value is a cons cell of the form (HOST | |
1190 | SERVICE) for a network connection or (PORT SPEED) for a serial | |
1191 | connection. If KEY is t, the complete contact information for the | |
1192 | connection is returned, else the specific value for the keyword KEY is | |
1193 | returned. See `make-network-process' or `make-serial-process' for a | |
1194 | list of keywords. */) | |
5842a27b | 1195 | (register Lisp_Object process, Lisp_Object key) |
e690ca94 KS |
1196 | { |
1197 | Lisp_Object contact; | |
1198 | ||
1199 | CHECK_PROCESS (process); | |
4d2b044c | 1200 | contact = XPROCESS (process)->childp; |
e690ca94 KS |
1201 | |
1202 | #ifdef DATAGRAM_SOCKETS | |
1203 | if (DATAGRAM_CONN_P (process) | |
1204 | && (EQ (key, Qt) || EQ (key, QCremote))) | |
177c0ea7 | 1205 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
1206 | Fprocess_datagram_address (process)); |
1207 | #endif | |
1208 | ||
d888760c | 1209 | if ((!NETCONN_P (process) && !SERIALCONN_P (process)) || EQ (key, Qt)) |
e690ca94 | 1210 | return contact; |
d888760c | 1211 | if (NILP (key) && NETCONN_P (process)) |
6c6f1994 PE |
1212 | return list2 (Fplist_get (contact, QChost), |
1213 | Fplist_get (contact, QCservice)); | |
d888760c | 1214 | if (NILP (key) && SERIALCONN_P (process)) |
6c6f1994 PE |
1215 | return list2 (Fplist_get (contact, QCport), |
1216 | Fplist_get (contact, QCspeed)); | |
e690ca94 | 1217 | return Fplist_get (contact, key); |
de282a05 RS |
1218 | } |
1219 | ||
faa7db08 KS |
1220 | DEFUN ("process-plist", Fprocess_plist, Sprocess_plist, |
1221 | 1, 1, 0, | |
1222 | doc: /* Return the plist of PROCESS. */) | |
5842a27b | 1223 | (register Lisp_Object process) |
365aee82 | 1224 | { |
ac4a7584 | 1225 | CHECK_PROCESS (process); |
4d2b044c | 1226 | return XPROCESS (process)->plist; |
ac4a7584 | 1227 | } |
365aee82 | 1228 | |
faa7db08 KS |
1229 | DEFUN ("set-process-plist", Fset_process_plist, Sset_process_plist, |
1230 | 2, 2, 0, | |
26a086c6 | 1231 | doc: /* Replace the plist of PROCESS with PLIST. Returns PLIST. */) |
5842a27b | 1232 | (register Lisp_Object process, Lisp_Object plist) |
ac4a7584 | 1233 | { |
365aee82 | 1234 | CHECK_PROCESS (process); |
faa7db08 | 1235 | CHECK_LIST (plist); |
365aee82 | 1236 | |
6a09a33b | 1237 | pset_plist (XPROCESS (process), plist); |
26a086c6 | 1238 | return plist; |
365aee82 KS |
1239 | } |
1240 | ||
312c9964 RS |
1241 | #if 0 /* Turned off because we don't currently record this info |
1242 | in the process. Perhaps add it. */ | |
1243 | DEFUN ("process-connection", Fprocess_connection, Sprocess_connection, 1, 1, 0, | |
fdb82f93 PJ |
1244 | doc: /* Return the connection type of PROCESS. |
1245 | The value is nil for a pipe, t or `pty' for a pty, or `stream' for | |
1246 | a socket connection. */) | |
5842a27b | 1247 | (Lisp_Object process) |
312c9964 | 1248 | { |
4d2b044c | 1249 | return XPROCESS (process)->type; |
312c9964 RS |
1250 | } |
1251 | #endif | |
2a7bb882 | 1252 | |
d888760c GM |
1253 | DEFUN ("process-type", Fprocess_type, Sprocess_type, 1, 1, 0, |
1254 | doc: /* Return the connection type of PROCESS. | |
1255 | The value is either the symbol `real', `network', or `serial'. | |
1256 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
1257 | nil, indicating the current buffer's process. */) | |
5842a27b | 1258 | (Lisp_Object process) |
d888760c GM |
1259 | { |
1260 | Lisp_Object proc; | |
1261 | proc = get_process (process); | |
4d2b044c | 1262 | return XPROCESS (proc)->type; |
d888760c | 1263 | } |
991234f0 | 1264 | |
991234f0 | 1265 | DEFUN ("format-network-address", Fformat_network_address, Sformat_network_address, |
0dccee41 | 1266 | 1, 2, 0, |
991234f0 | 1267 | doc: /* Convert network ADDRESS from internal format to a string. |
e1652a86 KS |
1268 | A 4 or 5 element vector represents an IPv4 address (with port number). |
1269 | An 8 or 9 element vector represents an IPv6 address (with port number). | |
0dccee41 | 1270 | If optional second argument OMIT-PORT is non-nil, don't include a port |
e1652a86 KS |
1271 | number in the string, even when present in ADDRESS. |
1272 | Returns nil if format of ADDRESS is invalid. */) | |
5842a27b | 1273 | (Lisp_Object address, Lisp_Object omit_port) |
991234f0 | 1274 | { |
991234f0 KS |
1275 | if (NILP (address)) |
1276 | return Qnil; | |
1277 | ||
1278 | if (STRINGP (address)) /* AF_LOCAL */ | |
1279 | return address; | |
1280 | ||
e1652a86 | 1281 | if (VECTORP (address)) /* AF_INET or AF_INET6 */ |
991234f0 KS |
1282 | { |
1283 | register struct Lisp_Vector *p = XVECTOR (address); | |
d311d28c | 1284 | ptrdiff_t size = p->header.size; |
ded83665 | 1285 | Lisp_Object args[10]; |
0dccee41 | 1286 | int nargs, i; |
991234f0 | 1287 | |
eab3844f | 1288 | if (size == 4 || (size == 5 && !NILP (omit_port))) |
0dccee41 KS |
1289 | { |
1290 | args[0] = build_string ("%d.%d.%d.%d"); | |
1291 | nargs = 4; | |
1292 | } | |
eab3844f | 1293 | else if (size == 5) |
0dccee41 KS |
1294 | { |
1295 | args[0] = build_string ("%d.%d.%d.%d:%d"); | |
1296 | nargs = 5; | |
1297 | } | |
eab3844f | 1298 | else if (size == 8 || (size == 9 && !NILP (omit_port))) |
e1652a86 KS |
1299 | { |
1300 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
1301 | nargs = 8; | |
1302 | } | |
eab3844f | 1303 | else if (size == 9) |
e1652a86 KS |
1304 | { |
1305 | args[0] = build_string ("[%x:%x:%x:%x:%x:%x:%x:%x]:%d"); | |
1306 | nargs = 9; | |
1307 | } | |
0dccee41 | 1308 | else |
991234f0 KS |
1309 | return Qnil; |
1310 | ||
0dccee41 | 1311 | for (i = 0; i < nargs; i++) |
cbf23adb | 1312 | { |
d311d28c | 1313 | if (! RANGED_INTEGERP (0, p->contents[i], 65535)) |
cbf23adb JB |
1314 | return Qnil; |
1315 | ||
1316 | if (nargs <= 5 /* IPv4 */ | |
1317 | && i < 4 /* host, not port */ | |
d311d28c | 1318 | && XINT (p->contents[i]) > 255) |
cbf23adb JB |
1319 | return Qnil; |
1320 | ||
1321 | args[i+1] = p->contents[i]; | |
1322 | } | |
1323 | ||
0dccee41 | 1324 | return Fformat (nargs+1, args); |
991234f0 KS |
1325 | } |
1326 | ||
1327 | if (CONSP (address)) | |
1328 | { | |
1329 | Lisp_Object args[2]; | |
1330 | args[0] = build_string ("<Family %d>"); | |
8d2ff840 | 1331 | args[1] = Fcar (address); |
991234f0 | 1332 | return Fformat (2, args); |
991234f0 KS |
1333 | } |
1334 | ||
1335 | return Qnil; | |
1336 | } | |
d0d6b7c5 JB |
1337 | |
1338 | DEFUN ("process-list", Fprocess_list, Sprocess_list, 0, 0, 0, | |
fec92060 | 1339 | doc: /* Return a list of all processes that are Emacs sub-processes. */) |
5842a27b | 1340 | (void) |
d0d6b7c5 JB |
1341 | { |
1342 | return Fmapcar (Qcdr, Vprocess_alist); | |
1343 | } | |
1344 | \f | |
b0310da4 JB |
1345 | /* Starting asynchronous inferior processes. */ |
1346 | ||
27e498e6 | 1347 | static void start_process_unwind (Lisp_Object proc); |
b0310da4 | 1348 | |
d0d6b7c5 | 1349 | DEFUN ("start-process", Fstart_process, Sstart_process, 3, MANY, 0, |
fdb82f93 PJ |
1350 | doc: /* Start a program in a subprocess. Return the process object for it. |
1351 | NAME is name for process. It is modified if necessary to make it unique. | |
553acde5 | 1352 | BUFFER is the buffer (or buffer name) to associate with the process. |
4b6c5eee EZ |
1353 | |
1354 | Process output (both standard output and standard error streams) goes | |
1355 | at end of BUFFER, unless you specify an output stream or filter | |
1356 | function to handle the output. BUFFER may also be nil, meaning that | |
16fdeb17 RS |
1357 | this process is not associated with any buffer. |
1358 | ||
6b8bc570 CY |
1359 | PROGRAM is the program file name. It is searched for in `exec-path' |
1360 | (which see). If nil, just associate a pty with the buffer. Remaining | |
1361 | arguments are strings to give program as arguments. | |
320aebc9 | 1362 | |
4b6c5eee EZ |
1363 | If you want to separate standard output from standard error, invoke |
1364 | the command through a shell and redirect one of them using the shell | |
1365 | syntax. | |
320aebc9 | 1366 | |
3ecdf100 | 1367 | usage: (start-process NAME BUFFER PROGRAM &rest PROGRAM-ARGS) */) |
f66c7cf8 | 1368 | (ptrdiff_t nargs, Lisp_Object *args) |
d0d6b7c5 | 1369 | { |
1e30af70 | 1370 | Lisp_Object buffer, name, program, proc, current_dir, tem; |
d0d6b7c5 | 1371 | register unsigned char **new_argv; |
f66c7cf8 | 1372 | ptrdiff_t i; |
d311d28c | 1373 | ptrdiff_t count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
1374 | |
1375 | buffer = args[1]; | |
1376 | if (!NILP (buffer)) | |
1377 | buffer = Fget_buffer_create (buffer); | |
1378 | ||
1e30af70 JB |
1379 | /* Make sure that the child will be able to chdir to the current |
1380 | buffer's current directory, or its unhandled equivalent. We | |
1381 | can't just have the child check for an error when it does the | |
1382 | chdir, since it's in a vfork. | |
1383 | ||
1384 | We have to GCPRO around this because Fexpand_file_name and | |
1385 | Funhandled_file_name_directory might call a file name handling | |
1386 | function. The argument list is protected by the caller, so all | |
1387 | we really have to worry about is buffer. */ | |
1388 | { | |
1389 | struct gcpro gcpro1, gcpro2; | |
1390 | ||
4b4deea2 | 1391 | current_dir = BVAR (current_buffer, directory); |
1e30af70 JB |
1392 | |
1393 | GCPRO2 (buffer, current_dir); | |
1394 | ||
ca319910 SM |
1395 | current_dir = Funhandled_file_name_directory (current_dir); |
1396 | if (NILP (current_dir)) | |
1397 | /* If the file name handler says that current_dir is unreachable, use | |
1398 | a sensible default. */ | |
1399 | current_dir = build_string ("~/"); | |
1400 | current_dir = expand_and_dir_to_file (current_dir, Qnil); | |
1e30af70 JB |
1401 | if (NILP (Ffile_accessible_directory_p (current_dir))) |
1402 | report_file_error ("Setting current directory", | |
a9757f6a | 1403 | BVAR (current_buffer, directory)); |
1e30af70 JB |
1404 | |
1405 | UNGCPRO; | |
1406 | } | |
1407 | ||
d0d6b7c5 | 1408 | name = args[0]; |
b7826503 | 1409 | CHECK_STRING (name); |
d0d6b7c5 JB |
1410 | |
1411 | program = args[2]; | |
1412 | ||
850d0752 NR |
1413 | if (!NILP (program)) |
1414 | CHECK_STRING (program); | |
d0d6b7c5 | 1415 | |
d0d6b7c5 | 1416 | proc = make_process (name); |
b0310da4 JB |
1417 | /* If an error occurs and we can't start the process, we want to |
1418 | remove it from the process list. This means that each error | |
1419 | check in create_process doesn't need to call remove_process | |
1420 | itself; it's all taken care of here. */ | |
1421 | record_unwind_protect (start_process_unwind, proc); | |
d0d6b7c5 | 1422 | |
6a09a33b PE |
1423 | pset_childp (XPROCESS (proc), Qt); |
1424 | pset_plist (XPROCESS (proc), Qnil); | |
1425 | pset_type (XPROCESS (proc), Qreal); | |
1426 | pset_buffer (XPROCESS (proc), buffer); | |
1aa8d505 SM |
1427 | pset_sentinel (XPROCESS (proc), Qinternal_default_process_sentinel); |
1428 | pset_filter (XPROCESS (proc), Qinternal_default_process_filter); | |
6a09a33b | 1429 | pset_command (XPROCESS (proc), Flist (nargs - 2, args + 2)); |
d0d6b7c5 | 1430 | |
8af55556 TZ |
1431 | #ifdef HAVE_GNUTLS |
1432 | /* AKA GNUTLS_INITSTAGE(proc). */ | |
1433 | XPROCESS (proc)->gnutls_initstage = GNUTLS_STAGE_EMPTY; | |
6a09a33b | 1434 | pset_gnutls_cred_type (XPROCESS (proc), Qnil); |
8af55556 TZ |
1435 | #endif |
1436 | ||
6b61353c | 1437 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 SM |
1438 | XPROCESS (proc)->adaptive_read_buffering |
1439 | = (NILP (Vprocess_adaptive_read_buffering) ? 0 | |
1440 | : EQ (Vprocess_adaptive_read_buffering, Qt) ? 1 : 2); | |
6b61353c KH |
1441 | #endif |
1442 | ||
7af71e17 | 1443 | /* Make the process marker point into the process buffer (if any). */ |
f523e0c3 | 1444 | if (BUFFERP (buffer)) |
4d2b044c | 1445 | set_marker_both (XPROCESS (proc)->mark, buffer, |
d8a2934e RS |
1446 | BUF_ZV (XBUFFER (buffer)), |
1447 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
7af71e17 | 1448 | |
67918941 | 1449 | { |
d5d4ae71 KH |
1450 | /* Decide coding systems for communicating with the process. Here |
1451 | we don't setup the structure coding_system nor pay attention to | |
1452 | unibyte mode. They are done in create_process. */ | |
1453 | ||
67918941 RS |
1454 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ |
1455 | Lisp_Object coding_systems = Qt; | |
1456 | Lisp_Object val, *args2; | |
a4a37e65 | 1457 | struct gcpro gcpro1, gcpro2; |
67918941 | 1458 | |
d5d4ae71 KH |
1459 | val = Vcoding_system_for_read; |
1460 | if (NILP (val)) | |
67918941 | 1461 | { |
38182d90 | 1462 | args2 = alloca ((nargs + 1) * sizeof *args2); |
67918941 RS |
1463 | args2[0] = Qstart_process; |
1464 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1465 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1466 | if (!NILP (program)) |
1467 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1468 | UNGCPRO; |
1469 | if (CONSP (coding_systems)) | |
70949dac | 1470 | val = XCAR (coding_systems); |
67918941 | 1471 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1472 | val = XCAR (Vdefault_process_coding_system); |
67918941 | 1473 | } |
6a09a33b | 1474 | pset_decode_coding_system (XPROCESS (proc), val); |
67918941 | 1475 | |
d5d4ae71 KH |
1476 | val = Vcoding_system_for_write; |
1477 | if (NILP (val)) | |
67918941 RS |
1478 | { |
1479 | if (EQ (coding_systems, Qt)) | |
1480 | { | |
38182d90 | 1481 | args2 = alloca ((nargs + 1) * sizeof *args2); |
67918941 RS |
1482 | args2[0] = Qstart_process; |
1483 | for (i = 0; i < nargs; i++) args2[i + 1] = args[i]; | |
a4a37e65 | 1484 | GCPRO2 (proc, current_dir); |
850d0752 NR |
1485 | if (!NILP (program)) |
1486 | coding_systems = Ffind_operation_coding_system (nargs + 1, args2); | |
67918941 RS |
1487 | UNGCPRO; |
1488 | } | |
1489 | if (CONSP (coding_systems)) | |
70949dac | 1490 | val = XCDR (coding_systems); |
67918941 | 1491 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 1492 | val = XCDR (Vdefault_process_coding_system); |
67918941 | 1493 | } |
6a09a33b | 1494 | pset_encode_coding_system (XPROCESS (proc), val); |
e1dbe924 | 1495 | /* Note: At this moment, the above coding system may leave |
fcaf8878 KH |
1496 | text-conversion or eol-conversion unspecified. They will be |
1497 | decided after we read output from the process and decode it by | |
1498 | some coding system, or just before we actually send a text to | |
1499 | the process. */ | |
67918941 | 1500 | } |
0fa1789e | 1501 | |
a4a37e65 | 1502 | |
6a09a33b | 1503 | pset_decoding_buf (XPROCESS (proc), empty_unibyte_string); |
850d0752 | 1504 | XPROCESS (proc)->decoding_carryover = 0; |
6a09a33b | 1505 | pset_encoding_buf (XPROCESS (proc), empty_unibyte_string); |
ed30cf85 | 1506 | |
850d0752 NR |
1507 | XPROCESS (proc)->inherit_coding_system_flag |
1508 | = !(NILP (buffer) || !inherit_process_coding_system); | |
77bf07e1 | 1509 | |
850d0752 NR |
1510 | if (!NILP (program)) |
1511 | { | |
1512 | /* If program file name is not absolute, search our path for it. | |
1513 | Put the name we will really use in TEM. */ | |
1514 | if (!IS_DIRECTORY_SEP (SREF (program, 0)) | |
1515 | && !(SCHARS (program) > 1 | |
1516 | && IS_DEVICE_SEP (SREF (program, 1)))) | |
1517 | { | |
1518 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
1519 | ||
1520 | tem = Qnil; | |
1521 | GCPRO4 (name, program, buffer, current_dir); | |
1522 | openp (Vexec_path, program, Vexec_suffixes, &tem, make_number (X_OK)); | |
1523 | UNGCPRO; | |
1524 | if (NILP (tem)) | |
a9757f6a | 1525 | report_file_error ("Searching for program", program); |
850d0752 NR |
1526 | tem = Fexpand_file_name (tem, Qnil); |
1527 | } | |
1528 | else | |
1529 | { | |
1530 | if (!NILP (Ffile_directory_p (program))) | |
1531 | error ("Specified program for new process is a directory"); | |
1532 | tem = program; | |
1533 | } | |
ed30cf85 | 1534 | |
850d0752 NR |
1535 | /* If program file name starts with /: for quoting a magic name, |
1536 | discard that. */ | |
1537 | if (SBYTES (tem) > 2 && SREF (tem, 0) == '/' | |
1538 | && SREF (tem, 1) == ':') | |
1539 | tem = Fsubstring (tem, make_number (2), Qnil); | |
77bf07e1 | 1540 | |
77bf07e1 | 1541 | { |
fcaf8878 | 1542 | Lisp_Object arg_encoding = Qnil; |
850d0752 NR |
1543 | struct gcpro gcpro1; |
1544 | GCPRO1 (tem); | |
a4a37e65 | 1545 | |
850d0752 NR |
1546 | /* Encode the file name and put it in NEW_ARGV. |
1547 | That's where the child will use it to execute the program. */ | |
6c6f1994 | 1548 | tem = list1 (ENCODE_FILE (tem)); |
77bf07e1 | 1549 | |
850d0752 NR |
1550 | /* Here we encode arguments by the coding system used for sending |
1551 | data to the process. We don't support using different coding | |
1552 | systems for encoding arguments and for encoding data sent to the | |
1553 | process. */ | |
77bf07e1 | 1554 | |
850d0752 NR |
1555 | for (i = 3; i < nargs; i++) |
1556 | { | |
1557 | tem = Fcons (args[i], tem); | |
1558 | CHECK_STRING (XCAR (tem)); | |
1559 | if (STRING_MULTIBYTE (XCAR (tem))) | |
fcaf8878 KH |
1560 | { |
1561 | if (NILP (arg_encoding)) | |
1562 | arg_encoding = (complement_process_encoding_system | |
4d2b044c | 1563 | (XPROCESS (proc)->encode_coding_system)); |
fcaf8878 KH |
1564 | XSETCAR (tem, |
1565 | code_convert_string_norecord | |
1566 | (XCAR (tem), arg_encoding, 1)); | |
1567 | } | |
850d0752 | 1568 | } |
a4a37e65 | 1569 | |
850d0752 NR |
1570 | UNGCPRO; |
1571 | } | |
0fa1789e | 1572 | |
850d0752 NR |
1573 | /* Now that everything is encoded we can collect the strings into |
1574 | NEW_ARGV. */ | |
38182d90 | 1575 | new_argv = alloca ((nargs - 1) * sizeof *new_argv); |
850d0752 | 1576 | new_argv[nargs - 2] = 0; |
52a1b894 | 1577 | |
c5101a77 | 1578 | for (i = nargs - 2; i-- != 0; ) |
850d0752 NR |
1579 | { |
1580 | new_argv[i] = SDATA (XCAR (tem)); | |
1581 | tem = XCDR (tem); | |
1582 | } | |
1583 | ||
1584 | create_process (proc, (char **) new_argv, current_dir); | |
1585 | } | |
1586 | else | |
1587 | create_pty (proc); | |
d0d6b7c5 | 1588 | |
b0310da4 | 1589 | return unbind_to (count, proc); |
d0d6b7c5 JB |
1590 | } |
1591 | ||
b0310da4 | 1592 | /* This function is the unwind_protect form for Fstart_process. If |
8e6208c5 | 1593 | PROC doesn't have its pid set, then we know someone has signaled |
b0310da4 JB |
1594 | an error and the process wasn't started successfully, so we should |
1595 | remove it from the process list. */ | |
27e498e6 | 1596 | static void |
d3da34e0 | 1597 | start_process_unwind (Lisp_Object proc) |
b0310da4 | 1598 | { |
bcd69aea | 1599 | if (!PROCESSP (proc)) |
1088b922 | 1600 | emacs_abort (); |
b0310da4 | 1601 | |
2bf26180 GM |
1602 | /* Was PROC started successfully? |
1603 | -2 is used for a pty with no process, eg for gdb. */ | |
1604 | if (XPROCESS (proc)->pid <= 0 && XPROCESS (proc)->pid != -2) | |
b0310da4 | 1605 | remove_process (proc); |
b0310da4 JB |
1606 | } |
1607 | ||
30904ab7 | 1608 | |
40ccffa6 | 1609 | static void |
cbd6509c | 1610 | create_process (Lisp_Object process, char **new_argv, Lisp_Object current_dir) |
d0d6b7c5 | 1611 | { |
29ed4d51 CY |
1612 | int inchannel, outchannel; |
1613 | pid_t pid; | |
a773ed9a | 1614 | int vfork_errno; |
d0d6b7c5 | 1615 | int sv[2]; |
49cdacda | 1616 | #ifndef WINDOWSNT |
2c4df143 YM |
1617 | int wait_child_setup[2]; |
1618 | #endif | |
cbd6509c PE |
1619 | int forkin, forkout; |
1620 | bool pty_flag = 0; | |
6496aec9 | 1621 | char pty_name[PTY_NAME_SIZE]; |
cbd6509c PE |
1622 | Lisp_Object lisp_pty_name = Qnil; |
1623 | Lisp_Object encoded_current_dir; | |
d0d6b7c5 | 1624 | |
d0d6b7c5 JB |
1625 | inchannel = outchannel = -1; |
1626 | ||
fe45da4e | 1627 | if (!NILP (Vprocess_connection_type)) |
6496aec9 | 1628 | outchannel = inchannel = allocate_pty (pty_name); |
d0d6b7c5 | 1629 | |
d0d6b7c5 JB |
1630 | if (inchannel >= 0) |
1631 | { | |
2af70a0c RS |
1632 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) |
1633 | /* On most USG systems it does not work to open the pty's tty here, | |
1634 | then close it and reopen it in the child. */ | |
d0d6b7c5 JB |
1635 | /* Don't let this terminal become our controlling terminal |
1636 | (in case we don't have one). */ | |
68c45bf0 | 1637 | forkout = forkin = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); |
d0d6b7c5 JB |
1638 | if (forkin < 0) |
1639 | report_file_error ("Opening pty", Qnil); | |
1640 | #else | |
1641 | forkin = forkout = -1; | |
2af70a0c | 1642 | #endif /* not USG, or USG_SUBTTY_WORKS */ |
d0d6b7c5 | 1643 | pty_flag = 1; |
4d7e6e51 | 1644 | lisp_pty_name = build_string (pty_name); |
d0d6b7c5 JB |
1645 | } |
1646 | else | |
d0d6b7c5 | 1647 | { |
c7ddc792 | 1648 | if (emacs_pipe (sv) != 0) |
fc14013c | 1649 | report_file_error ("Creating pipe", Qnil); |
d0d6b7c5 JB |
1650 | inchannel = sv[0]; |
1651 | forkout = sv[1]; | |
c7ddc792 | 1652 | if (emacs_pipe (sv) != 0) |
fc14013c | 1653 | { |
a773ed9a | 1654 | int pipe_errno = errno; |
68c45bf0 PE |
1655 | emacs_close (inchannel); |
1656 | emacs_close (forkout); | |
a773ed9a | 1657 | report_file_errno ("Creating pipe", Qnil, pipe_errno); |
fc14013c | 1658 | } |
d0d6b7c5 JB |
1659 | outchannel = sv[1]; |
1660 | forkin = sv[0]; | |
1661 | } | |
d0d6b7c5 | 1662 | |
49cdacda | 1663 | #ifndef WINDOWSNT |
c7ddc792 | 1664 | if (emacs_pipe (wait_child_setup) != 0) |
067428c1 | 1665 | report_file_error ("Creating pipe", Qnil); |
2c4df143 YM |
1666 | #endif |
1667 | ||
d0d6b7c5 | 1668 | fcntl (inchannel, F_SETFL, O_NONBLOCK); |
03832893 | 1669 | fcntl (outchannel, F_SETFL, O_NONBLOCK); |
d0d6b7c5 | 1670 | |
067428c1 | 1671 | /* Record this as an active process, with its channels. */ |
d0d6b7c5 | 1672 | chan_process[inchannel] = process; |
60f0fb11 SM |
1673 | XPROCESS (process)->infd = inchannel; |
1674 | XPROCESS (process)->outfd = outchannel; | |
16782258 JD |
1675 | |
1676 | /* Previously we recorded the tty descriptor used in the subprocess. | |
1677 | It was only used for getting the foreground tty process, so now | |
1678 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
1679 | more portable (see USG_SUBTTY_WORKS above). */ | |
1680 | ||
60f0fb11 | 1681 | XPROCESS (process)->pty_flag = pty_flag; |
6a09a33b | 1682 | pset_status (XPROCESS (process), Qrun); |
d0d6b7c5 | 1683 | |
3081bf8d | 1684 | FD_SET (inchannel, &input_wait_mask); |
a69281ff | 1685 | FD_SET (inchannel, &non_keyboard_wait_mask); |
3081bf8d KH |
1686 | if (inchannel > max_process_desc) |
1687 | max_process_desc = inchannel; | |
1688 | ||
0b3d4a47 | 1689 | /* This may signal an error. */ |
5cf2b69b KH |
1690 | setup_process_coding_systems (process); |
1691 | ||
4d7e6e51 | 1692 | encoded_current_dir = ENCODE_FILE (current_dir); |
177c0ea7 | 1693 | |
4d7e6e51 | 1694 | block_input (); |
fa55d2aa | 1695 | block_child_signal (); |
4d7e6e51 | 1696 | |
e98d950b | 1697 | #ifndef WINDOWSNT |
cbd6509c PE |
1698 | /* vfork, and prevent local vars from being clobbered by the vfork. */ |
1699 | { | |
1700 | Lisp_Object volatile encoded_current_dir_volatile = encoded_current_dir; | |
1701 | Lisp_Object volatile lisp_pty_name_volatile = lisp_pty_name; | |
1702 | Lisp_Object volatile process_volatile = process; | |
cbd6509c PE |
1703 | char **volatile new_argv_volatile = new_argv; |
1704 | int volatile forkin_volatile = forkin; | |
1705 | int volatile forkout_volatile = forkout; | |
1706 | int volatile wait_child_setup_0_volatile = wait_child_setup[0]; | |
1707 | int volatile wait_child_setup_1_volatile = wait_child_setup[1]; | |
1708 | ||
1709 | pid = vfork (); | |
1710 | ||
1711 | encoded_current_dir = encoded_current_dir_volatile; | |
1712 | lisp_pty_name = lisp_pty_name_volatile; | |
1713 | process = process_volatile; | |
cbd6509c PE |
1714 | new_argv = new_argv_volatile; |
1715 | forkin = forkin_volatile; | |
1716 | forkout = forkout_volatile; | |
1717 | wait_child_setup[0] = wait_child_setup_0_volatile; | |
1718 | wait_child_setup[1] = wait_child_setup_1_volatile; | |
6496aec9 PE |
1719 | |
1720 | pty_flag = XPROCESS (process)->pty_flag; | |
cbd6509c PE |
1721 | } |
1722 | ||
4d7e6e51 | 1723 | if (pid == 0) |
e98d950b | 1724 | #endif /* not WINDOWSNT */ |
4d7e6e51 PE |
1725 | { |
1726 | int xforkin = forkin; | |
1727 | int xforkout = forkout; | |
d0d6b7c5 | 1728 | |
4d7e6e51 | 1729 | /* Make the pty be the controlling terminal of the process. */ |
d0d6b7c5 | 1730 | #ifdef HAVE_PTYS |
4d7e6e51 | 1731 | /* First, disconnect its current controlling terminal. */ |
4d7e6e51 PE |
1732 | /* We tried doing setsid only if pty_flag, but it caused |
1733 | process_set_signal to fail on SGI when using a pipe. */ | |
1734 | setsid (); | |
1735 | /* Make the pty's terminal the controlling terminal. */ | |
1736 | if (pty_flag && xforkin >= 0) | |
1737 | { | |
39e9ebcd | 1738 | #ifdef TIOCSCTTY |
4d7e6e51 PE |
1739 | /* We ignore the return value |
1740 | because faith@cs.unc.edu says that is necessary on Linux. */ | |
1741 | ioctl (xforkin, TIOCSCTTY, 0); | |
ce4c9c90 | 1742 | #endif |
4d7e6e51 | 1743 | } |
a7ebc409 | 1744 | #if defined (LDISC1) |
4d7e6e51 PE |
1745 | if (pty_flag && xforkin >= 0) |
1746 | { | |
1747 | struct termios t; | |
1748 | tcgetattr (xforkin, &t); | |
1749 | t.c_lflag = LDISC1; | |
1750 | if (tcsetattr (xforkin, TCSANOW, &t) < 0) | |
4ebbdd67 | 1751 | emacs_perror ("create_process/tcsetattr LDISC1"); |
4d7e6e51 | 1752 | } |
9bcf8ec6 | 1753 | #else |
aafadd9f | 1754 | #if defined (NTTYDISC) && defined (TIOCSETD) |
4d7e6e51 PE |
1755 | if (pty_flag && xforkin >= 0) |
1756 | { | |
1757 | /* Use new line discipline. */ | |
1758 | int ldisc = NTTYDISC; | |
1759 | ioctl (xforkin, TIOCSETD, &ldisc); | |
1760 | } | |
000ab717 | 1761 | #endif |
9bcf8ec6 | 1762 | #endif |
177c0ea7 | 1763 | #ifdef TIOCNOTTY |
4d7e6e51 PE |
1764 | /* In 4.3BSD, the TIOCSPGRP bug has been fixed, and now you |
1765 | can do TIOCSPGRP only to the process's controlling tty. */ | |
1766 | if (pty_flag) | |
1767 | { | |
1768 | /* I wonder: would just ioctl (0, TIOCNOTTY, 0) work here? | |
1769 | I can't test it since I don't have 4.3. */ | |
1770 | int j = emacs_open ("/dev/tty", O_RDWR, 0); | |
1771 | if (j >= 0) | |
1772 | { | |
1773 | ioctl (j, TIOCNOTTY, 0); | |
1774 | emacs_close (j); | |
1775 | } | |
4d7e6e51 | 1776 | } |
d0d6b7c5 JB |
1777 | #endif /* TIOCNOTTY */ |
1778 | ||
e39a993c | 1779 | #if !defined (DONT_REOPEN_PTY) |
d0d6b7c5 | 1780 | /*** There is a suggestion that this ought to be a |
dd0333b6 | 1781 | conditional on TIOCSPGRP, or !defined TIOCSCTTY. |
99153b9e RS |
1782 | Trying the latter gave the wrong results on Debian GNU/Linux 1.1; |
1783 | that system does seem to need this code, even though | |
dd0333b6 | 1784 | both TIOCSCTTY is defined. */ |
d0d6b7c5 JB |
1785 | /* Now close the pty (if we had it open) and reopen it. |
1786 | This makes the pty the controlling terminal of the subprocess. */ | |
4d7e6e51 PE |
1787 | if (pty_flag) |
1788 | { | |
99e3d726 | 1789 | |
6496aec9 | 1790 | /* I wonder if emacs_close (emacs_open (SSDATA (lisp_pty_name), ...)) |
4d7e6e51 PE |
1791 | would work? */ |
1792 | if (xforkin >= 0) | |
1793 | emacs_close (xforkin); | |
6496aec9 | 1794 | xforkout = xforkin = emacs_open (SSDATA (lisp_pty_name), O_RDWR, 0); |
d0d6b7c5 | 1795 | |
4d7e6e51 PE |
1796 | if (xforkin < 0) |
1797 | { | |
6496aec9 | 1798 | emacs_perror (SSDATA (lisp_pty_name)); |
4ebbdd67 | 1799 | _exit (EXIT_CANCELED); |
4d7e6e51 | 1800 | } |
4aa54ba8 | 1801 | |
4d7e6e51 | 1802 | } |
e39a993c | 1803 | #endif /* not DONT_REOPEN_PTY */ |
e9bf058b | 1804 | |
d0d6b7c5 | 1805 | #ifdef SETUP_SLAVE_PTY |
4d7e6e51 PE |
1806 | if (pty_flag) |
1807 | { | |
1808 | SETUP_SLAVE_PTY; | |
1809 | } | |
d0d6b7c5 | 1810 | #endif /* SETUP_SLAVE_PTY */ |
d0d6b7c5 JB |
1811 | #endif /* HAVE_PTYS */ |
1812 | ||
4d7e6e51 PE |
1813 | signal (SIGINT, SIG_DFL); |
1814 | signal (SIGQUIT, SIG_DFL); | |
1815 | ||
1816 | /* Emacs ignores SIGPIPE, but the child should not. */ | |
1817 | signal (SIGPIPE, SIG_DFL); | |
0dc70c33 | 1818 | |
fa55d2aa PE |
1819 | /* Stop blocking SIGCHLD in the child. */ |
1820 | unblock_child_signal (); | |
5e7e1da2 | 1821 | |
4d7e6e51 PE |
1822 | if (pty_flag) |
1823 | child_setup_tty (xforkout); | |
e98d950b | 1824 | #ifdef WINDOWSNT |
4d7e6e51 PE |
1825 | pid = child_setup (xforkin, xforkout, xforkout, |
1826 | new_argv, 1, encoded_current_dir); | |
177c0ea7 | 1827 | #else /* not WINDOWSNT */ |
4d7e6e51 PE |
1828 | child_setup (xforkin, xforkout, xforkout, |
1829 | new_argv, 1, encoded_current_dir); | |
e98d950b | 1830 | #endif /* not WINDOWSNT */ |
4d7e6e51 | 1831 | } |
d0d6b7c5 | 1832 | |
4d7e6e51 PE |
1833 | /* Back in the parent process. */ |
1834 | ||
a773ed9a | 1835 | vfork_errno = errno; |
4d7e6e51 | 1836 | XPROCESS (process)->pid = pid; |
908589fd | 1837 | if (pid >= 0) |
0b3d4a47 | 1838 | XPROCESS (process)->alive = 1; |
d0d6b7c5 | 1839 | |
fa55d2aa PE |
1840 | /* Stop blocking in the parent. */ |
1841 | unblock_child_signal (); | |
4d7e6e51 | 1842 | unblock_input (); |
ececcbec | 1843 | |
ee010797 PE |
1844 | if (forkin >= 0) |
1845 | emacs_close (forkin); | |
1846 | if (forkin != forkout && forkout >= 0) | |
1847 | emacs_close (forkout); | |
1848 | ||
d0d6b7c5 | 1849 | if (pid < 0) |
ee010797 | 1850 | report_file_errno ("Doing vfork", Qnil, vfork_errno); |
4a127b3b KH |
1851 | else |
1852 | { | |
1853 | /* vfork succeeded. */ | |
d0d6b7c5 | 1854 | |
e98d950b | 1855 | #ifdef WINDOWSNT |
4a127b3b | 1856 | register_child (pid, inchannel); |
e98d950b RS |
1857 | #endif /* WINDOWSNT */ |
1858 | ||
4d7e6e51 | 1859 | pset_tty_name (XPROCESS (process), lisp_pty_name); |
2c4df143 | 1860 | |
49cdacda | 1861 | #ifndef WINDOWSNT |
2c4df143 YM |
1862 | /* Wait for child_setup to complete in case that vfork is |
1863 | actually defined as fork. The descriptor wait_child_setup[1] | |
1864 | of a pipe is closed at the child side either by close-on-exec | |
21e54a94 | 1865 | on successful execve or the _exit call in child_setup. */ |
2c4df143 YM |
1866 | { |
1867 | char dummy; | |
1868 | ||
1869 | emacs_close (wait_child_setup[1]); | |
1870 | emacs_read (wait_child_setup[0], &dummy, 1); | |
1871 | emacs_close (wait_child_setup[0]); | |
1872 | } | |
1873 | #endif | |
4a127b3b | 1874 | } |
d0d6b7c5 | 1875 | } |
d0d6b7c5 | 1876 | |
6496aec9 | 1877 | static void |
d3da34e0 | 1878 | create_pty (Lisp_Object process) |
850d0752 | 1879 | { |
6496aec9 | 1880 | char pty_name[PTY_NAME_SIZE]; |
850d0752 | 1881 | int inchannel, outchannel; |
850d0752 NR |
1882 | |
1883 | inchannel = outchannel = -1; | |
1884 | ||
850d0752 | 1885 | if (!NILP (Vprocess_connection_type)) |
6496aec9 | 1886 | outchannel = inchannel = allocate_pty (pty_name); |
850d0752 NR |
1887 | |
1888 | if (inchannel >= 0) | |
1889 | { | |
1890 | #if ! defined (USG) || defined (USG_SUBTTY_WORKS) | |
1891 | /* On most USG systems it does not work to open the pty's tty here, | |
1892 | then close it and reopen it in the child. */ | |
850d0752 NR |
1893 | /* Don't let this terminal become our controlling terminal |
1894 | (in case we don't have one). */ | |
afd4052b | 1895 | int forkout = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0); |
aba7731a | 1896 | if (forkout < 0) |
850d0752 | 1897 | report_file_error ("Opening pty", Qnil); |
019d2c4c | 1898 | #if defined (DONT_REOPEN_PTY) |
850d0752 NR |
1899 | /* In the case that vfork is defined as fork, the parent process |
1900 | (Emacs) may send some data before the child process completes | |
1901 | tty options setup. So we setup tty before forking. */ | |
1902 | child_setup_tty (forkout); | |
019d2c4c | 1903 | #endif /* DONT_REOPEN_PTY */ |
850d0752 | 1904 | #endif /* not USG, or USG_SUBTTY_WORKS */ |
850d0752 | 1905 | |
6496aec9 PE |
1906 | fcntl (inchannel, F_SETFL, O_NONBLOCK); |
1907 | fcntl (outchannel, F_SETFL, O_NONBLOCK); | |
850d0752 | 1908 | |
6496aec9 PE |
1909 | /* Record this as an active process, with its channels. |
1910 | As a result, child_setup will close Emacs's side of the pipes. */ | |
1911 | chan_process[inchannel] = process; | |
1912 | XPROCESS (process)->infd = inchannel; | |
1913 | XPROCESS (process)->outfd = outchannel; | |
850d0752 | 1914 | |
6496aec9 PE |
1915 | /* Previously we recorded the tty descriptor used in the subprocess. |
1916 | It was only used for getting the foreground tty process, so now | |
1917 | we just reopen the device (see emacs_get_tty_pgrp) as this is | |
1918 | more portable (see USG_SUBTTY_WORKS above). */ | |
850d0752 | 1919 | |
6496aec9 PE |
1920 | XPROCESS (process)->pty_flag = 1; |
1921 | pset_status (XPROCESS (process), Qrun); | |
1922 | setup_process_coding_systems (process); | |
850d0752 | 1923 | |
6496aec9 PE |
1924 | FD_SET (inchannel, &input_wait_mask); |
1925 | FD_SET (inchannel, &non_keyboard_wait_mask); | |
1926 | if (inchannel > max_process_desc) | |
1927 | max_process_desc = inchannel; | |
1928 | ||
1929 | pset_tty_name (XPROCESS (process), build_string (pty_name)); | |
1930 | } | |
850d0752 NR |
1931 | |
1932 | XPROCESS (process)->pid = -2; | |
850d0752 NR |
1933 | } |
1934 | ||
e690ca94 | 1935 | \f |
e690ca94 KS |
1936 | /* Convert an internal struct sockaddr to a lisp object (vector or string). |
1937 | The address family of sa is not included in the result. */ | |
1938 | ||
1939 | static Lisp_Object | |
d3da34e0 | 1940 | conv_sockaddr_to_lisp (struct sockaddr *sa, int len) |
e690ca94 KS |
1941 | { |
1942 | Lisp_Object address; | |
1943 | int i; | |
1944 | unsigned char *cp; | |
1945 | register struct Lisp_Vector *p; | |
1946 | ||
63136da6 AS |
1947 | /* Workaround for a bug in getsockname on BSD: Names bound to |
1948 | sockets in the UNIX domain are inaccessible; getsockname returns | |
1949 | a zero length name. */ | |
89887d67 | 1950 | if (len < offsetof (struct sockaddr, sa_family) + sizeof (sa->sa_family)) |
fff4e459 | 1951 | return empty_unibyte_string; |
63136da6 | 1952 | |
e690ca94 KS |
1953 | switch (sa->sa_family) |
1954 | { | |
1955 | case AF_INET: | |
1956 | { | |
1957 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
1958 | len = sizeof (sin->sin_addr) + 1; | |
1959 | address = Fmake_vector (make_number (len), Qnil); | |
1960 | p = XVECTOR (address); | |
1961 | p->contents[--len] = make_number (ntohs (sin->sin_port)); | |
63136da6 | 1962 | cp = (unsigned char *) &sin->sin_addr; |
e690ca94 KS |
1963 | break; |
1964 | } | |
e1652a86 KS |
1965 | #ifdef AF_INET6 |
1966 | case AF_INET6: | |
1967 | { | |
1968 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
63136da6 | 1969 | uint16_t *ip6 = (uint16_t *) &sin6->sin6_addr; |
e1652a86 KS |
1970 | len = sizeof (sin6->sin6_addr)/2 + 1; |
1971 | address = Fmake_vector (make_number (len), Qnil); | |
1972 | p = XVECTOR (address); | |
1973 | p->contents[--len] = make_number (ntohs (sin6->sin6_port)); | |
1974 | for (i = 0; i < len; i++) | |
1975 | p->contents[i] = make_number (ntohs (ip6[i])); | |
1976 | return address; | |
1977 | } | |
1978 | #endif | |
e690ca94 KS |
1979 | #ifdef HAVE_LOCAL_SOCKETS |
1980 | case AF_LOCAL: | |
1981 | { | |
fb23673a EZ |
1982 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
1983 | for (i = 0; i < sizeof (sockun->sun_path); i++) | |
1984 | if (sockun->sun_path[i] == 0) | |
e690ca94 | 1985 | break; |
fb23673a | 1986 | return make_unibyte_string (sockun->sun_path, i); |
e690ca94 KS |
1987 | } |
1988 | #endif | |
1989 | default: | |
89887d67 | 1990 | len -= offsetof (struct sockaddr, sa_family) + sizeof (sa->sa_family); |
e690ca94 KS |
1991 | address = Fcons (make_number (sa->sa_family), |
1992 | Fmake_vector (make_number (len), Qnil)); | |
1993 | p = XVECTOR (XCDR (address)); | |
63136da6 | 1994 | cp = (unsigned char *) &sa->sa_family + sizeof (sa->sa_family); |
e690ca94 KS |
1995 | break; |
1996 | } | |
1997 | ||
1998 | i = 0; | |
1999 | while (i < len) | |
2000 | p->contents[i++] = make_number (*cp++); | |
2001 | ||
2002 | return address; | |
2003 | } | |
2004 | ||
2005 | ||
2006 | /* Get family and required size for sockaddr structure to hold ADDRESS. */ | |
2007 | ||
2008 | static int | |
d3da34e0 | 2009 | get_lisp_to_sockaddr_size (Lisp_Object address, int *familyp) |
e690ca94 KS |
2010 | { |
2011 | register struct Lisp_Vector *p; | |
2012 | ||
2013 | if (VECTORP (address)) | |
2014 | { | |
2015 | p = XVECTOR (address); | |
eab3844f | 2016 | if (p->header.size == 5) |
e690ca94 KS |
2017 | { |
2018 | *familyp = AF_INET; | |
2019 | return sizeof (struct sockaddr_in); | |
2020 | } | |
e1652a86 | 2021 | #ifdef AF_INET6 |
eab3844f | 2022 | else if (p->header.size == 9) |
e1652a86 KS |
2023 | { |
2024 | *familyp = AF_INET6; | |
2025 | return sizeof (struct sockaddr_in6); | |
2026 | } | |
2027 | #endif | |
e690ca94 KS |
2028 | } |
2029 | #ifdef HAVE_LOCAL_SOCKETS | |
2030 | else if (STRINGP (address)) | |
2031 | { | |
2032 | *familyp = AF_LOCAL; | |
2033 | return sizeof (struct sockaddr_un); | |
2034 | } | |
2035 | #endif | |
d311d28c PE |
2036 | else if (CONSP (address) && TYPE_RANGED_INTEGERP (int, XCAR (address)) |
2037 | && VECTORP (XCDR (address))) | |
e690ca94 KS |
2038 | { |
2039 | struct sockaddr *sa; | |
2040 | *familyp = XINT (XCAR (address)); | |
2041 | p = XVECTOR (XCDR (address)); | |
eab3844f | 2042 | return p->header.size + sizeof (sa->sa_family); |
e690ca94 KS |
2043 | } |
2044 | return 0; | |
2045 | } | |
2046 | ||
2047 | /* Convert an address object (vector or string) to an internal sockaddr. | |
9d1a8e5d RS |
2048 | |
2049 | The address format has been basically validated by | |
2050 | get_lisp_to_sockaddr_size, but this does not mean FAMILY is valid; | |
2051 | it could have come from user data. So if FAMILY is not valid, | |
2052 | we return after zeroing *SA. */ | |
e690ca94 KS |
2053 | |
2054 | static void | |
d3da34e0 | 2055 | conv_lisp_to_sockaddr (int family, Lisp_Object address, struct sockaddr *sa, int len) |
e690ca94 KS |
2056 | { |
2057 | register struct Lisp_Vector *p; | |
34967d0f | 2058 | register unsigned char *cp = NULL; |
e690ca94 | 2059 | register int i; |
d311d28c | 2060 | EMACS_INT hostport; |
e690ca94 | 2061 | |
72af86bd | 2062 | memset (sa, 0, len); |
e690ca94 KS |
2063 | |
2064 | if (VECTORP (address)) | |
2065 | { | |
2066 | p = XVECTOR (address); | |
2067 | if (family == AF_INET) | |
2068 | { | |
2069 | struct sockaddr_in *sin = (struct sockaddr_in *) sa; | |
2070 | len = sizeof (sin->sin_addr) + 1; | |
d311d28c PE |
2071 | hostport = XINT (p->contents[--len]); |
2072 | sin->sin_port = htons (hostport); | |
e690ca94 | 2073 | cp = (unsigned char *)&sin->sin_addr; |
9d1a8e5d | 2074 | sa->sa_family = family; |
e690ca94 | 2075 | } |
e1652a86 KS |
2076 | #ifdef AF_INET6 |
2077 | else if (family == AF_INET6) | |
2078 | { | |
2079 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa; | |
2080 | uint16_t *ip6 = (uint16_t *)&sin6->sin6_addr; | |
2081 | len = sizeof (sin6->sin6_addr) + 1; | |
d311d28c PE |
2082 | hostport = XINT (p->contents[--len]); |
2083 | sin6->sin6_port = htons (hostport); | |
e1652a86 KS |
2084 | for (i = 0; i < len; i++) |
2085 | if (INTEGERP (p->contents[i])) | |
2086 | { | |
2087 | int j = XFASTINT (p->contents[i]) & 0xffff; | |
2088 | ip6[i] = ntohs (j); | |
2089 | } | |
9d1a8e5d | 2090 | sa->sa_family = family; |
0eb7675e | 2091 | return; |
e1652a86 KS |
2092 | } |
2093 | #endif | |
0eb7675e AS |
2094 | else |
2095 | return; | |
e690ca94 KS |
2096 | } |
2097 | else if (STRINGP (address)) | |
2098 | { | |
2099 | #ifdef HAVE_LOCAL_SOCKETS | |
2100 | if (family == AF_LOCAL) | |
2101 | { | |
fb23673a | 2102 | struct sockaddr_un *sockun = (struct sockaddr_un *) sa; |
d5db4077 | 2103 | cp = SDATA (address); |
fb23673a EZ |
2104 | for (i = 0; i < sizeof (sockun->sun_path) && *cp; i++) |
2105 | sockun->sun_path[i] = *cp++; | |
9d1a8e5d | 2106 | sa->sa_family = family; |
e690ca94 KS |
2107 | } |
2108 | #endif | |
2109 | return; | |
2110 | } | |
2111 | else | |
2112 | { | |
2113 | p = XVECTOR (XCDR (address)); | |
2114 | cp = (unsigned char *)sa + sizeof (sa->sa_family); | |
2115 | } | |
2116 | ||
2117 | for (i = 0; i < len; i++) | |
2118 | if (INTEGERP (p->contents[i])) | |
2119 | *cp++ = XFASTINT (p->contents[i]) & 0xff; | |
2120 | } | |
2121 | ||
2122 | #ifdef DATAGRAM_SOCKETS | |
2123 | DEFUN ("process-datagram-address", Fprocess_datagram_address, Sprocess_datagram_address, | |
2124 | 1, 1, 0, | |
2125 | doc: /* Get the current datagram address associated with PROCESS. */) | |
5842a27b | 2126 | (Lisp_Object process) |
e690ca94 KS |
2127 | { |
2128 | int channel; | |
2129 | ||
2130 | CHECK_PROCESS (process); | |
2131 | ||
2132 | if (!DATAGRAM_CONN_P (process)) | |
2133 | return Qnil; | |
2134 | ||
60f0fb11 | 2135 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2136 | return conv_sockaddr_to_lisp (datagram_address[channel].sa, |
2137 | datagram_address[channel].len); | |
2138 | } | |
2139 | ||
2140 | DEFUN ("set-process-datagram-address", Fset_process_datagram_address, Sset_process_datagram_address, | |
2141 | 2, 2, 0, | |
2142 | doc: /* Set the datagram address for PROCESS to ADDRESS. | |
2143 | Returns nil upon error setting address, ADDRESS otherwise. */) | |
5842a27b | 2144 | (Lisp_Object process, Lisp_Object address) |
e690ca94 KS |
2145 | { |
2146 | int channel; | |
2147 | int family, len; | |
2148 | ||
2149 | CHECK_PROCESS (process); | |
2150 | ||
2151 | if (!DATAGRAM_CONN_P (process)) | |
2152 | return Qnil; | |
2153 | ||
60f0fb11 | 2154 | channel = XPROCESS (process)->infd; |
e690ca94 KS |
2155 | |
2156 | len = get_lisp_to_sockaddr_size (address, &family); | |
a9ebfa0b | 2157 | if (len == 0 || datagram_address[channel].len != len) |
e690ca94 KS |
2158 | return Qnil; |
2159 | conv_lisp_to_sockaddr (family, address, datagram_address[channel].sa, len); | |
2160 | return address; | |
2161 | } | |
2162 | #endif | |
2163 | \f | |
2164 | ||
5e2327cf | 2165 | static const struct socket_options { |
e690ca94 | 2166 | /* The name of this option. Should be lowercase version of option |
177c0ea7 | 2167 | name without SO_ prefix. */ |
fce70521 | 2168 | const char *name; |
e690ca94 KS |
2169 | /* Option level SOL_... */ |
2170 | int optlevel; | |
2171 | /* Option number SO_... */ | |
2172 | int optnum; | |
6b61353c KH |
2173 | enum { SOPT_UNKNOWN, SOPT_BOOL, SOPT_INT, SOPT_IFNAME, SOPT_LINGER } opttype; |
2174 | enum { OPIX_NONE=0, OPIX_MISC=1, OPIX_REUSEADDR=2 } optbit; | |
e690ca94 KS |
2175 | } socket_options[] = |
2176 | { | |
2177 | #ifdef SO_BINDTODEVICE | |
6b61353c | 2178 | { ":bindtodevice", SOL_SOCKET, SO_BINDTODEVICE, SOPT_IFNAME, OPIX_MISC }, |
e690ca94 KS |
2179 | #endif |
2180 | #ifdef SO_BROADCAST | |
6b61353c | 2181 | { ":broadcast", SOL_SOCKET, SO_BROADCAST, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2182 | #endif |
2183 | #ifdef SO_DONTROUTE | |
6b61353c | 2184 | { ":dontroute", SOL_SOCKET, SO_DONTROUTE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2185 | #endif |
2186 | #ifdef SO_KEEPALIVE | |
6b61353c | 2187 | { ":keepalive", SOL_SOCKET, SO_KEEPALIVE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2188 | #endif |
2189 | #ifdef SO_LINGER | |
6b61353c | 2190 | { ":linger", SOL_SOCKET, SO_LINGER, SOPT_LINGER, OPIX_MISC }, |
e690ca94 KS |
2191 | #endif |
2192 | #ifdef SO_OOBINLINE | |
6b61353c | 2193 | { ":oobinline", SOL_SOCKET, SO_OOBINLINE, SOPT_BOOL, OPIX_MISC }, |
e690ca94 KS |
2194 | #endif |
2195 | #ifdef SO_PRIORITY | |
6b61353c | 2196 | { ":priority", SOL_SOCKET, SO_PRIORITY, SOPT_INT, OPIX_MISC }, |
e690ca94 KS |
2197 | #endif |
2198 | #ifdef SO_REUSEADDR | |
6b61353c | 2199 | { ":reuseaddr", SOL_SOCKET, SO_REUSEADDR, SOPT_BOOL, OPIX_REUSEADDR }, |
e690ca94 | 2200 | #endif |
6b61353c | 2201 | { 0, 0, 0, SOPT_UNKNOWN, OPIX_NONE } |
e690ca94 KS |
2202 | }; |
2203 | ||
6b61353c | 2204 | /* Set option OPT to value VAL on socket S. |
e690ca94 | 2205 | |
6b61353c KH |
2206 | Returns (1<<socket_options[OPT].optbit) if option is known, 0 otherwise. |
2207 | Signals an error if setting a known option fails. | |
2208 | */ | |
e690ca94 KS |
2209 | |
2210 | static int | |
d3da34e0 | 2211 | set_socket_option (int s, Lisp_Object opt, Lisp_Object val) |
e690ca94 | 2212 | { |
6b61353c | 2213 | char *name; |
5e2327cf | 2214 | const struct socket_options *sopt; |
6b61353c | 2215 | int ret = 0; |
e690ca94 | 2216 | |
6b61353c | 2217 | CHECK_SYMBOL (opt); |
e690ca94 | 2218 | |
51b59d79 | 2219 | name = SSDATA (SYMBOL_NAME (opt)); |
6b61353c KH |
2220 | for (sopt = socket_options; sopt->name; sopt++) |
2221 | if (strcmp (name, sopt->name) == 0) | |
2222 | break; | |
e690ca94 | 2223 | |
6b61353c KH |
2224 | switch (sopt->opttype) |
2225 | { | |
2226 | case SOPT_BOOL: | |
2227 | { | |
2228 | int optval; | |
2229 | optval = NILP (val) ? 0 : 1; | |
2230 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2231 | &optval, sizeof (optval)); | |
2232 | break; | |
2233 | } | |
e690ca94 | 2234 | |
6b61353c KH |
2235 | case SOPT_INT: |
2236 | { | |
2237 | int optval; | |
d311d28c | 2238 | if (TYPE_RANGED_INTEGERP (int, val)) |
6b61353c KH |
2239 | optval = XINT (val); |
2240 | else | |
2241 | error ("Bad option value for %s", name); | |
2242 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2243 | &optval, sizeof (optval)); | |
2244 | break; | |
2245 | } | |
e690ca94 | 2246 | |
6b61353c KH |
2247 | #ifdef SO_BINDTODEVICE |
2248 | case SOPT_IFNAME: | |
2249 | { | |
2250 | char devname[IFNAMSIZ+1]; | |
e690ca94 | 2251 | |
6b61353c KH |
2252 | /* This is broken, at least in the Linux 2.4 kernel. |
2253 | To unbind, the arg must be a zero integer, not the empty string. | |
2254 | This should work on all systems. KFS. 2003-09-23. */ | |
72af86bd | 2255 | memset (devname, 0, sizeof devname); |
6b61353c | 2256 | if (STRINGP (val)) |
e690ca94 | 2257 | { |
51b59d79 | 2258 | char *arg = SSDATA (val); |
6b61353c | 2259 | int len = min (strlen (arg), IFNAMSIZ); |
72af86bd | 2260 | memcpy (devname, arg, len); |
e690ca94 | 2261 | } |
6b61353c KH |
2262 | else if (!NILP (val)) |
2263 | error ("Bad option value for %s", name); | |
2264 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2265 | devname, IFNAMSIZ); | |
2266 | break; | |
2267 | } | |
2268 | #endif | |
e690ca94 | 2269 | |
177c0ea7 | 2270 | #ifdef SO_LINGER |
6b61353c KH |
2271 | case SOPT_LINGER: |
2272 | { | |
2273 | struct linger linger; | |
e690ca94 | 2274 | |
6b61353c KH |
2275 | linger.l_onoff = 1; |
2276 | linger.l_linger = 0; | |
d311d28c | 2277 | if (TYPE_RANGED_INTEGERP (int, val)) |
6b61353c KH |
2278 | linger.l_linger = XINT (val); |
2279 | else | |
2280 | linger.l_onoff = NILP (val) ? 0 : 1; | |
2281 | ret = setsockopt (s, sopt->optlevel, sopt->optnum, | |
2282 | &linger, sizeof (linger)); | |
2283 | break; | |
2284 | } | |
e690ca94 | 2285 | #endif |
6b61353c KH |
2286 | |
2287 | default: | |
2288 | return 0; | |
e690ca94 | 2289 | } |
6b61353c KH |
2290 | |
2291 | if (ret < 0) | |
b648c163 PE |
2292 | { |
2293 | int setsockopt_errno = errno; | |
2294 | report_file_errno ("Cannot set network option", list2 (opt, val), | |
2295 | setsockopt_errno); | |
2296 | } | |
2297 | ||
6b61353c | 2298 | return (1 << sopt->optbit); |
e690ca94 KS |
2299 | } |
2300 | ||
6b61353c KH |
2301 | |
2302 | DEFUN ("set-network-process-option", | |
2303 | Fset_network_process_option, Sset_network_process_option, | |
2304 | 3, 4, 0, | |
2305 | doc: /* For network process PROCESS set option OPTION to value VALUE. | |
2306 | See `make-network-process' for a list of options and values. | |
2307 | If optional fourth arg NO-ERROR is non-nil, don't signal an error if | |
2308 | OPTION is not a supported option, return nil instead; otherwise return t. */) | |
5842a27b | 2309 | (Lisp_Object process, Lisp_Object option, Lisp_Object value, Lisp_Object no_error) |
e690ca94 | 2310 | { |
6b61353c KH |
2311 | int s; |
2312 | struct Lisp_Process *p; | |
e690ca94 | 2313 | |
e690ca94 | 2314 | CHECK_PROCESS (process); |
6b61353c KH |
2315 | p = XPROCESS (process); |
2316 | if (!NETCONN1_P (p)) | |
2317 | error ("Process is not a network process"); | |
2318 | ||
60f0fb11 | 2319 | s = p->infd; |
6b61353c KH |
2320 | if (s < 0) |
2321 | error ("Process is not running"); | |
2322 | ||
2323 | if (set_socket_option (s, option, value)) | |
e690ca94 | 2324 | { |
6a09a33b | 2325 | pset_childp (p, Fplist_put (p->childp, option, value)); |
6b61353c | 2326 | return Qt; |
e690ca94 | 2327 | } |
6b61353c KH |
2328 | |
2329 | if (NILP (no_error)) | |
2330 | error ("Unknown or unsupported option"); | |
2331 | ||
2332 | return Qnil; | |
e690ca94 | 2333 | } |
6b61353c | 2334 | |
e690ca94 | 2335 | \f |
d888760c GM |
2336 | DEFUN ("serial-process-configure", |
2337 | Fserial_process_configure, | |
2338 | Sserial_process_configure, | |
2339 | 0, MANY, 0, | |
2340 | doc: /* Configure speed, bytesize, etc. of a serial process. | |
2341 | ||
2342 | Arguments are specified as keyword/argument pairs. Attributes that | |
2343 | are not given are re-initialized from the process's current | |
2344 | configuration (available via the function `process-contact') or set to | |
2345 | reasonable default values. The following arguments are defined: | |
2346 | ||
2347 | :process PROCESS | |
2348 | :name NAME | |
2349 | :buffer BUFFER | |
2350 | :port PORT | |
2351 | -- Any of these arguments can be given to identify the process that is | |
2352 | to be configured. If none of these arguments is given, the current | |
2353 | buffer's process is used. | |
2354 | ||
2355 | :speed SPEED -- SPEED is the speed of the serial port in bits per | |
2356 | second, also called baud rate. Any value can be given for SPEED, but | |
2357 | most serial ports work only at a few defined values between 1200 and | |
2358 | 115200, with 9600 being the most common value. If SPEED is nil, the | |
2359 | serial port is not configured any further, i.e., all other arguments | |
2360 | are ignored. This may be useful for special serial ports such as | |
2361 | Bluetooth-to-serial converters which can only be configured through AT | |
2362 | commands. A value of nil for SPEED can be used only when passed | |
2363 | through `make-serial-process' or `serial-term'. | |
2364 | ||
2365 | :bytesize BYTESIZE -- BYTESIZE is the number of bits per byte, which | |
2366 | can be 7 or 8. If BYTESIZE is not given or nil, a value of 8 is used. | |
2367 | ||
2368 | :parity PARITY -- PARITY can be nil (don't use parity), the symbol | |
2369 | `odd' (use odd parity), or the symbol `even' (use even parity). If | |
2370 | PARITY is not given, no parity is used. | |
2371 | ||
2372 | :stopbits STOPBITS -- STOPBITS is the number of stopbits used to | |
2373 | terminate a byte transmission. STOPBITS can be 1 or 2. If STOPBITS | |
2374 | is not given or nil, 1 stopbit is used. | |
2375 | ||
2376 | :flowcontrol FLOWCONTROL -- FLOWCONTROL determines the type of | |
2377 | flowcontrol to be used, which is either nil (don't use flowcontrol), | |
2378 | the symbol `hw' (use RTS/CTS hardware flowcontrol), or the symbol `sw' | |
2379 | \(use XON/XOFF software flowcontrol). If FLOWCONTROL is not given, no | |
2380 | flowcontrol is used. | |
2381 | ||
2382 | `serial-process-configure' is called by `make-serial-process' for the | |
2383 | initial configuration of the serial port. | |
2384 | ||
2385 | Examples: | |
2386 | ||
2387 | \(serial-process-configure :process "/dev/ttyS0" :speed 1200) | |
2388 | ||
2389 | \(serial-process-configure | |
2390 | :buffer "COM1" :stopbits 1 :parity 'odd :flowcontrol 'hw) | |
2391 | ||
2392 | \(serial-process-configure :port "\\\\.\\COM13" :bytesize 7) | |
2393 | ||
2394 | usage: (serial-process-configure &rest ARGS) */) | |
f66c7cf8 | 2395 | (ptrdiff_t nargs, Lisp_Object *args) |
d888760c GM |
2396 | { |
2397 | struct Lisp_Process *p; | |
2398 | Lisp_Object contact = Qnil; | |
2399 | Lisp_Object proc = Qnil; | |
2400 | struct gcpro gcpro1; | |
2401 | ||
2402 | contact = Flist (nargs, args); | |
2403 | GCPRO1 (contact); | |
2404 | ||
2405 | proc = Fplist_get (contact, QCprocess); | |
2406 | if (NILP (proc)) | |
2407 | proc = Fplist_get (contact, QCname); | |
2408 | if (NILP (proc)) | |
2409 | proc = Fplist_get (contact, QCbuffer); | |
2410 | if (NILP (proc)) | |
2411 | proc = Fplist_get (contact, QCport); | |
2412 | proc = get_process (proc); | |
2413 | p = XPROCESS (proc); | |
4d2b044c | 2414 | if (!EQ (p->type, Qserial)) |
d888760c GM |
2415 | error ("Not a serial process"); |
2416 | ||
4d2b044c | 2417 | if (NILP (Fplist_get (p->childp, QCspeed))) |
d888760c GM |
2418 | { |
2419 | UNGCPRO; | |
2420 | return Qnil; | |
2421 | } | |
2422 | ||
2423 | serial_configure (p, contact); | |
2424 | ||
2425 | UNGCPRO; | |
2426 | return Qnil; | |
2427 | } | |
d888760c | 2428 | |
d888760c GM |
2429 | DEFUN ("make-serial-process", Fmake_serial_process, Smake_serial_process, |
2430 | 0, MANY, 0, | |
2431 | doc: /* Create and return a serial port process. | |
2432 | ||
2433 | In Emacs, serial port connections are represented by process objects, | |
2434 | so input and output work as for subprocesses, and `delete-process' | |
2435 | closes a serial port connection. However, a serial process has no | |
2436 | process id, it cannot be signaled, and the status codes are different | |
2437 | from normal processes. | |
2438 | ||
2439 | `make-serial-process' creates a process and a buffer, on which you | |
2440 | probably want to use `process-send-string'. Try \\[serial-term] for | |
2441 | an interactive terminal. See below for examples. | |
2442 | ||
2443 | Arguments are specified as keyword/argument pairs. The following | |
2444 | arguments are defined: | |
2445 | ||
2446 | :port PORT -- (mandatory) PORT is the path or name of the serial port. | |
2447 | For example, this could be "/dev/ttyS0" on Unix. On Windows, this | |
2448 | could be "COM1", or "\\\\.\\COM10" for ports higher than COM9 (double | |
2449 | the backslashes in strings). | |
2450 | ||
2451 | :speed SPEED -- (mandatory) is handled by `serial-process-configure', | |
4373fd43 | 2452 | which this function calls. |
d888760c GM |
2453 | |
2454 | :name NAME -- NAME is the name of the process. If NAME is not given, | |
2455 | the value of PORT is used. | |
2456 | ||
2457 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
2458 | with the process. Process output goes at the end of that buffer, | |
2459 | unless you specify an output stream or filter function to handle the | |
2460 | output. If BUFFER is not given, the value of NAME is used. | |
2461 | ||
2462 | :coding CODING -- If CODING is a symbol, it specifies the coding | |
2463 | system used for both reading and writing for this process. If CODING | |
2464 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
2465 | ENCODING is used for writing. | |
2466 | ||
2467 | :noquery BOOL -- When exiting Emacs, query the user if BOOL is nil and | |
2468 | the process is running. If BOOL is not given, query before exiting. | |
2469 | ||
2470 | :stop BOOL -- Start process in the `stopped' state if BOOL is non-nil. | |
2471 | In the stopped state, a serial process does not accept incoming data, | |
2472 | but you can send outgoing data. The stopped state is cleared by | |
2473 | `continue-process' and set by `stop-process'. | |
2474 | ||
2475 | :filter FILTER -- Install FILTER as the process filter. | |
2476 | ||
2477 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. | |
2478 | ||
2479 | :plist PLIST -- Install PLIST as the initial plist of the process. | |
2480 | ||
d888760c GM |
2481 | :bytesize |
2482 | :parity | |
2483 | :stopbits | |
2484 | :flowcontrol | |
4373fd43 GM |
2485 | -- This function calls `serial-process-configure' to handle these |
2486 | arguments. | |
d888760c GM |
2487 | |
2488 | The original argument list, possibly modified by later configuration, | |
2489 | is available via the function `process-contact'. | |
2490 | ||
2491 | Examples: | |
2492 | ||
2493 | \(make-serial-process :port "/dev/ttyS0" :speed 9600) | |
2494 | ||
2495 | \(make-serial-process :port "COM1" :speed 115200 :stopbits 2) | |
2496 | ||
2497 | \(make-serial-process :port "\\\\.\\COM13" :speed 1200 :bytesize 7 :parity 'odd) | |
2498 | ||
2499 | \(make-serial-process :port "/dev/tty.BlueConsole-SPP-1" :speed nil) | |
2500 | ||
2501 | usage: (make-serial-process &rest ARGS) */) | |
f66c7cf8 | 2502 | (ptrdiff_t nargs, Lisp_Object *args) |
d888760c GM |
2503 | { |
2504 | int fd = -1; | |
2505 | Lisp_Object proc, contact, port; | |
2506 | struct Lisp_Process *p; | |
2507 | struct gcpro gcpro1; | |
2508 | Lisp_Object name, buffer; | |
2509 | Lisp_Object tem, val; | |
9349e5f7 | 2510 | ptrdiff_t specpdl_count; |
d888760c GM |
2511 | |
2512 | if (nargs == 0) | |
2513 | return Qnil; | |
2514 | ||
2515 | contact = Flist (nargs, args); | |
2516 | GCPRO1 (contact); | |
2517 | ||
2518 | port = Fplist_get (contact, QCport); | |
2519 | if (NILP (port)) | |
2520 | error ("No port specified"); | |
2521 | CHECK_STRING (port); | |
2522 | ||
2523 | if (NILP (Fplist_member (contact, QCspeed))) | |
2524 | error (":speed not specified"); | |
2525 | if (!NILP (Fplist_get (contact, QCspeed))) | |
2526 | CHECK_NUMBER (Fplist_get (contact, QCspeed)); | |
2527 | ||
2528 | name = Fplist_get (contact, QCname); | |
2529 | if (NILP (name)) | |
2530 | name = port; | |
2531 | CHECK_STRING (name); | |
2532 | proc = make_process (name); | |
2533 | specpdl_count = SPECPDL_INDEX (); | |
27e498e6 | 2534 | record_unwind_protect (remove_process, proc); |
d888760c GM |
2535 | p = XPROCESS (proc); |
2536 | ||
4e604a5d | 2537 | fd = serial_open (port); |
d888760c GM |
2538 | p->infd = fd; |
2539 | p->outfd = fd; | |
2540 | if (fd > max_process_desc) | |
2541 | max_process_desc = fd; | |
2542 | chan_process[fd] = proc; | |
2543 | ||
2544 | buffer = Fplist_get (contact, QCbuffer); | |
2545 | if (NILP (buffer)) | |
2546 | buffer = name; | |
2547 | buffer = Fget_buffer_create (buffer); | |
6a09a33b PE |
2548 | pset_buffer (p, buffer); |
2549 | ||
2550 | pset_childp (p, contact); | |
2551 | pset_plist (p, Fcopy_sequence (Fplist_get (contact, QCplist))); | |
2552 | pset_type (p, Qserial); | |
2553 | pset_sentinel (p, Fplist_get (contact, QCsentinel)); | |
2554 | pset_filter (p, Fplist_get (contact, QCfilter)); | |
2555 | pset_log (p, Qnil); | |
d888760c GM |
2556 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) |
2557 | p->kill_without_query = 1; | |
2558 | if (tem = Fplist_get (contact, QCstop), !NILP (tem)) | |
6a09a33b | 2559 | pset_command (p, Qt); |
6496aec9 | 2560 | eassert (! p->pty_flag); |
d888760c | 2561 | |
4d2b044c | 2562 | if (!EQ (p->command, Qt)) |
d888760c GM |
2563 | { |
2564 | FD_SET (fd, &input_wait_mask); | |
2565 | FD_SET (fd, &non_keyboard_wait_mask); | |
2566 | } | |
2567 | ||
2568 | if (BUFFERP (buffer)) | |
2569 | { | |
4d2b044c | 2570 | set_marker_both (p->mark, buffer, |
d888760c GM |
2571 | BUF_ZV (XBUFFER (buffer)), |
2572 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
2573 | } | |
2574 | ||
2575 | tem = Fplist_member (contact, QCcoding); | |
2576 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
2577 | tem = Qnil; | |
2578 | ||
2579 | val = Qnil; | |
2580 | if (!NILP (tem)) | |
2581 | { | |
2582 | val = XCAR (XCDR (tem)); | |
2583 | if (CONSP (val)) | |
2584 | val = XCAR (val); | |
2585 | } | |
2586 | else if (!NILP (Vcoding_system_for_read)) | |
2587 | val = Vcoding_system_for_read; | |
4b4deea2 TT |
2588 | else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters))) |
2589 | || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))) | |
d888760c | 2590 | val = Qnil; |
6a09a33b | 2591 | pset_decode_coding_system (p, val); |
d888760c GM |
2592 | |
2593 | val = Qnil; | |
2594 | if (!NILP (tem)) | |
2595 | { | |
2596 | val = XCAR (XCDR (tem)); | |
2597 | if (CONSP (val)) | |
2598 | val = XCDR (val); | |
2599 | } | |
2600 | else if (!NILP (Vcoding_system_for_write)) | |
2601 | val = Vcoding_system_for_write; | |
4b4deea2 TT |
2602 | else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters))) |
2603 | || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))) | |
d888760c | 2604 | val = Qnil; |
6a09a33b | 2605 | pset_encode_coding_system (p, val); |
d888760c GM |
2606 | |
2607 | setup_process_coding_systems (proc); | |
6a09a33b | 2608 | pset_decoding_buf (p, empty_unibyte_string); |
d888760c | 2609 | p->decoding_carryover = 0; |
6a09a33b | 2610 | pset_encoding_buf (p, empty_unibyte_string); |
d888760c GM |
2611 | p->inherit_coding_system_flag |
2612 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); | |
2613 | ||
ed3751c8 | 2614 | Fserial_process_configure (nargs, args); |
d888760c GM |
2615 | |
2616 | specpdl_ptr = specpdl + specpdl_count; | |
2617 | ||
2618 | UNGCPRO; | |
2619 | return proc; | |
2620 | } | |
d888760c | 2621 | |
e690ca94 KS |
2622 | /* Create a network stream/datagram client/server process. Treated |
2623 | exactly like a normal process when reading and writing. Primary | |
d0d6b7c5 JB |
2624 | differences are in status display and process deletion. A network |
2625 | connection has no PID; you cannot signal it. All you can do is | |
e690ca94 KS |
2626 | stop/continue it and deactivate/close it via delete-process */ |
2627 | ||
177c0ea7 JB |
2628 | DEFUN ("make-network-process", Fmake_network_process, Smake_network_process, |
2629 | 0, MANY, 0, | |
e690ca94 KS |
2630 | doc: /* Create and return a network server or client process. |
2631 | ||
fa9d4315 | 2632 | In Emacs, network connections are represented by process objects, so |
e690ca94 KS |
2633 | input and output work as for subprocesses and `delete-process' closes |
2634 | a network connection. However, a network process has no process id, | |
d22426e1 | 2635 | it cannot be signaled, and the status codes are different from normal |
e690ca94 KS |
2636 | processes. |
2637 | ||
2638 | Arguments are specified as keyword/argument pairs. The following | |
2639 | arguments are defined: | |
2640 | ||
2641 | :name NAME -- NAME is name for process. It is modified if necessary | |
2642 | to make it unique. | |
2643 | ||
2644 | :buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate | |
2645 | with the process. Process output goes at end of that buffer, unless | |
2646 | you specify an output stream or filter function to handle the output. | |
2647 | BUFFER may be also nil, meaning that this process is not associated | |
2648 | with any buffer. | |
2649 | ||
2650 | :host HOST -- HOST is name of the host to connect to, or its IP | |
2651 | address. The symbol `local' specifies the local host. If specified | |
2652 | for a server process, it must be a valid name or address for the local | |
2653 | host, and only clients connecting to that address will be accepted. | |
2654 | ||
2655 | :service SERVICE -- SERVICE is name of the service desired, or an | |
2656 | integer specifying a port number to connect to. If SERVICE is t, | |
eba25e7c GM |
2657 | a random port number is selected for the server. (If Emacs was |
2658 | compiled with getaddrinfo, a port number can also be specified as a | |
2659 | string, e.g. "80", as well as an integer. This is not portable.) | |
e690ca94 | 2660 | |
9057ff80 | 2661 | :type TYPE -- TYPE is the type of connection. The default (nil) is a |
f00c449b SM |
2662 | stream type connection, `datagram' creates a datagram type connection, |
2663 | `seqpacket' creates a reliable datagram connection. | |
9057ff80 | 2664 | |
e690ca94 | 2665 | :family FAMILY -- FAMILY is the address (and protocol) family for the |
e1652a86 KS |
2666 | service specified by HOST and SERVICE. The default (nil) is to use |
2667 | whatever address family (IPv4 or IPv6) that is defined for the host | |
2668 | and port number specified by HOST and SERVICE. Other address families | |
2669 | supported are: | |
e690ca94 | 2670 | local -- for a local (i.e. UNIX) address specified by SERVICE. |
e1652a86 KS |
2671 | ipv4 -- use IPv4 address family only. |
2672 | ipv6 -- use IPv6 address family only. | |
e690ca94 KS |
2673 | |
2674 | :local ADDRESS -- ADDRESS is the local address used for the connection. | |
2675 | This parameter is ignored when opening a client process. When specified | |
2676 | for a server process, the FAMILY, HOST and SERVICE args are ignored. | |
2677 | ||
2678 | :remote ADDRESS -- ADDRESS is the remote partner's address for the | |
2679 | connection. This parameter is ignored when opening a stream server | |
2680 | process. For a datagram server process, it specifies the initial | |
2681 | setting of the remote datagram address. When specified for a client | |
2682 | process, the FAMILY, HOST, and SERVICE args are ignored. | |
2683 | ||
2684 | The format of ADDRESS depends on the address family: | |
2685 | - An IPv4 address is represented as an vector of integers [A B C D P] | |
2686 | corresponding to numeric IP address A.B.C.D and port number P. | |
2687 | - A local address is represented as a string with the address in the | |
2688 | local address space. | |
2689 | - An "unsupported family" address is represented by a cons (F . AV) | |
2690 | where F is the family number and AV is a vector containing the socket | |
2691 | address data with one element per address data byte. Do not rely on | |
2692 | this format in portable code, as it may depend on implementation | |
2693 | defined constants, data sizes, and data structure alignment. | |
2694 | ||
6b61353c KH |
2695 | :coding CODING -- If CODING is a symbol, it specifies the coding |
2696 | system used for both reading and writing for this process. If CODING | |
2697 | is a cons (DECODING . ENCODING), DECODING is used for reading, and | |
2698 | ENCODING is used for writing. | |
e690ca94 KS |
2699 | |
2700 | :nowait BOOL -- If BOOL is non-nil for a stream type client process, | |
2701 | return without waiting for the connection to complete; instead, the | |
2702 | sentinel function will be called with second arg matching "open" (if | |
2703 | successful) or "failed" when the connect completes. Default is to use | |
2704 | a blocking connect (i.e. wait) for stream type connections. | |
2705 | ||
2706 | :noquery BOOL -- Query the user unless BOOL is non-nil, and process is | |
f3d9532b | 2707 | running when Emacs is exited. |
e690ca94 KS |
2708 | |
2709 | :stop BOOL -- Start process in the `stopped' state if BOOL non-nil. | |
2710 | In the stopped state, a server process does not accept new | |
2711 | connections, and a client process does not handle incoming traffic. | |
2712 | The stopped state is cleared by `continue-process' and set by | |
2713 | `stop-process'. | |
2714 | ||
2715 | :filter FILTER -- Install FILTER as the process filter. | |
2716 | ||
7392e23c KS |
2717 | :filter-multibyte BOOL -- If BOOL is non-nil, strings given to the |
2718 | process filter are multibyte, otherwise they are unibyte. | |
e0f24100 | 2719 | If this keyword is not specified, the strings are multibyte if |
016a35df | 2720 | the default value of `enable-multibyte-characters' is non-nil. |
03f04413 | 2721 | |
e690ca94 KS |
2722 | :sentinel SENTINEL -- Install SENTINEL as the process sentinel. |
2723 | ||
2724 | :log LOG -- Install LOG as the server process log function. This | |
991234f0 | 2725 | function is called when the server accepts a network connection from a |
e690ca94 KS |
2726 | client. The arguments are SERVER, CLIENT, and MESSAGE, where SERVER |
2727 | is the server process, CLIENT is the new process for the connection, | |
2728 | and MESSAGE is a string. | |
2729 | ||
faa7db08 | 2730 | :plist PLIST -- Install PLIST as the new process' initial plist. |
177c0ea7 | 2731 | |
6b61353c | 2732 | :server QLEN -- if QLEN is non-nil, create a server process for the |
e690ca94 | 2733 | specified FAMILY, SERVICE, and connection type (stream or datagram). |
6b61353c KH |
2734 | If QLEN is an integer, it is used as the max. length of the server's |
2735 | pending connection queue (also known as the backlog); the default | |
2736 | queue length is 5. Default is to create a client process. | |
2737 | ||
2738 | The following network options can be specified for this connection: | |
2739 | ||
2740 | :broadcast BOOL -- Allow send and receive of datagram broadcasts. | |
2741 | :dontroute BOOL -- Only send to directly connected hosts. | |
2742 | :keepalive BOOL -- Send keep-alive messages on network stream. | |
2743 | :linger BOOL or TIMEOUT -- Send queued messages before closing. | |
2744 | :oobinline BOOL -- Place out-of-band data in receive data stream. | |
2745 | :priority INT -- Set protocol defined priority for sent packets. | |
2746 | :reuseaddr BOOL -- Allow reusing a recently used local address | |
2747 | (this is allowed by default for a server process). | |
2748 | :bindtodevice NAME -- bind to interface NAME. Using this may require | |
2749 | special privileges on some systems. | |
2750 | ||
2751 | Consult the relevant system programmer's manual pages for more | |
2752 | information on using these options. | |
2753 | ||
2754 | ||
2755 | A server process will listen for and accept connections from clients. | |
2756 | When a client connection is accepted, a new network process is created | |
2757 | for the connection with the following parameters: | |
e690ca94 | 2758 | |
e690ca94 KS |
2759 | - The client's process name is constructed by concatenating the server |
2760 | process' NAME and a client identification string. | |
2761 | - If the FILTER argument is non-nil, the client process will not get a | |
2762 | separate process buffer; otherwise, the client's process buffer is a newly | |
2763 | created buffer named after the server process' BUFFER name or process | |
177c0ea7 | 2764 | NAME concatenated with the client identification string. |
e690ca94 KS |
2765 | - The connection type and the process filter and sentinel parameters are |
2766 | inherited from the server process' TYPE, FILTER and SENTINEL. | |
2767 | - The client process' contact info is set according to the client's | |
2768 | addressing information (typically an IP address and a port number). | |
faa7db08 | 2769 | - The client process' plist is initialized from the server's plist. |
e690ca94 KS |
2770 | |
2771 | Notice that the FILTER and SENTINEL args are never used directly by | |
2772 | the server process. Also, the BUFFER argument is not used directly by | |
9e9a5792 KS |
2773 | the server process, but via the optional :log function, accepted (and |
2774 | failed) connections may be logged in the server process' buffer. | |
e690ca94 | 2775 | |
365aee82 KS |
2776 | The original argument list, modified with the actual connection |
2777 | information, is available via the `process-contact' function. | |
365aee82 | 2778 | |
fa9d4315 | 2779 | usage: (make-network-process &rest ARGS) */) |
f66c7cf8 | 2780 | (ptrdiff_t nargs, Lisp_Object *args) |
d0d6b7c5 JB |
2781 | { |
2782 | Lisp_Object proc; | |
e690ca94 KS |
2783 | Lisp_Object contact; |
2784 | struct Lisp_Process *p; | |
70dbdb36 | 2785 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 2786 | struct addrinfo ai, *res, *lres; |
e1652a86 | 2787 | struct addrinfo hints; |
8ea90aa3 DN |
2788 | const char *portstring; |
2789 | char portbuf[128]; | |
70dbdb36 | 2790 | #else /* HAVE_GETADDRINFO */ |
dd2a17ab KS |
2791 | struct _emacs_addrinfo |
2792 | { | |
2793 | int ai_family; | |
2794 | int ai_socktype; | |
2795 | int ai_protocol; | |
2796 | int ai_addrlen; | |
2797 | struct sockaddr *ai_addr; | |
2798 | struct _emacs_addrinfo *ai_next; | |
2799 | } ai, *res, *lres; | |
418b48fd | 2800 | #endif /* HAVE_GETADDRINFO */ |
e690ca94 KS |
2801 | struct sockaddr_in address_in; |
2802 | #ifdef HAVE_LOCAL_SOCKETS | |
2803 | struct sockaddr_un address_un; | |
2804 | #endif | |
2805 | int port; | |
dd2a17ab KS |
2806 | int ret = 0; |
2807 | int xerrno = 0; | |
418b48fd | 2808 | int s = -1, outch, inch; |
e690ca94 | 2809 | struct gcpro gcpro1; |
d311d28c PE |
2810 | ptrdiff_t count = SPECPDL_INDEX (); |
2811 | ptrdiff_t count1; | |
e690ca94 KS |
2812 | Lisp_Object QCaddress; /* one of QClocal or QCremote */ |
2813 | Lisp_Object tem; | |
2814 | Lisp_Object name, buffer, host, service, address; | |
2815 | Lisp_Object filter, sentinel; | |
0bce5d9e PE |
2816 | bool is_non_blocking_client = 0; |
2817 | bool is_server = 0; | |
2818 | int backlog = 5; | |
9057ff80 | 2819 | int socktype; |
e690ca94 KS |
2820 | int family = -1; |
2821 | ||
2822 | if (nargs == 0) | |
2823 | return Qnil; | |
dd2a17ab | 2824 | |
e690ca94 KS |
2825 | /* Save arguments for process-contact and clone-process. */ |
2826 | contact = Flist (nargs, args); | |
2827 | GCPRO1 (contact); | |
2828 | ||
bff3ed0a RS |
2829 | #ifdef WINDOWSNT |
2830 | /* Ensure socket support is loaded if available. */ | |
2831 | init_winsock (TRUE); | |
2832 | #endif | |
2833 | ||
9057ff80 KS |
2834 | /* :type TYPE (nil: stream, datagram */ |
2835 | tem = Fplist_get (contact, QCtype); | |
2836 | if (NILP (tem)) | |
2837 | socktype = SOCK_STREAM; | |
2838 | #ifdef DATAGRAM_SOCKETS | |
2839 | else if (EQ (tem, Qdatagram)) | |
2840 | socktype = SOCK_DGRAM; | |
f00c449b SM |
2841 | #endif |
2842 | #ifdef HAVE_SEQPACKET | |
2843 | else if (EQ (tem, Qseqpacket)) | |
2844 | socktype = SOCK_SEQPACKET; | |
e690ca94 | 2845 | #endif |
9057ff80 KS |
2846 | else |
2847 | error ("Unsupported connection type"); | |
e690ca94 KS |
2848 | |
2849 | /* :server BOOL */ | |
2850 | tem = Fplist_get (contact, QCserver); | |
2851 | if (!NILP (tem)) | |
2852 | { | |
75728599 JR |
2853 | /* Don't support network sockets when non-blocking mode is |
2854 | not available, since a blocked Emacs is not useful. */ | |
e690ca94 | 2855 | is_server = 1; |
d311d28c | 2856 | if (TYPE_RANGED_INTEGERP (int, tem)) |
6b61353c | 2857 | backlog = XINT (tem); |
e690ca94 KS |
2858 | } |
2859 | ||
2860 | /* Make QCaddress an alias for :local (server) or :remote (client). */ | |
2861 | QCaddress = is_server ? QClocal : QCremote; | |
2862 | ||
d7e344cd | 2863 | /* :nowait BOOL */ |
84b31826 | 2864 | if (!is_server && socktype != SOCK_DGRAM |
e690ca94 KS |
2865 | && (tem = Fplist_get (contact, QCnowait), !NILP (tem))) |
2866 | { | |
2867 | #ifndef NON_BLOCKING_CONNECT | |
2868 | error ("Non-blocking connect not supported"); | |
2869 | #else | |
2870 | is_non_blocking_client = 1; | |
2871 | #endif | |
2872 | } | |
2873 | ||
2874 | name = Fplist_get (contact, QCname); | |
2875 | buffer = Fplist_get (contact, QCbuffer); | |
2876 | filter = Fplist_get (contact, QCfilter); | |
2877 | sentinel = Fplist_get (contact, QCsentinel); | |
2878 | ||
b7826503 | 2879 | CHECK_STRING (name); |
e690ca94 | 2880 | |
e690ca94 KS |
2881 | /* Initialize addrinfo structure in case we don't use getaddrinfo. */ |
2882 | ai.ai_socktype = socktype; | |
2883 | ai.ai_protocol = 0; | |
2884 | ai.ai_next = NULL; | |
2885 | res = &ai; | |
a319f7c1 | 2886 | |
e690ca94 KS |
2887 | /* :local ADDRESS or :remote ADDRESS */ |
2888 | address = Fplist_get (contact, QCaddress); | |
2889 | if (!NILP (address)) | |
a319f7c1 | 2890 | { |
e690ca94 KS |
2891 | host = service = Qnil; |
2892 | ||
2893 | if (!(ai.ai_addrlen = get_lisp_to_sockaddr_size (address, &family))) | |
2894 | error ("Malformed :address"); | |
2895 | ai.ai_family = family; | |
2896 | ai.ai_addr = alloca (ai.ai_addrlen); | |
2897 | conv_lisp_to_sockaddr (family, address, ai.ai_addr, ai.ai_addrlen); | |
2898 | goto open_socket; | |
a319f7c1 | 2899 | } |
e690ca94 KS |
2900 | |
2901 | /* :family FAMILY -- nil (for Inet), local, or integer. */ | |
2902 | tem = Fplist_get (contact, QCfamily); | |
e1652a86 | 2903 | if (NILP (tem)) |
a319f7c1 | 2904 | { |
5e617bc2 | 2905 | #if defined (HAVE_GETADDRINFO) && defined (AF_INET6) |
e1652a86 KS |
2906 | family = AF_UNSPEC; |
2907 | #else | |
2908 | family = AF_INET; | |
e690ca94 | 2909 | #endif |
a319f7c1 | 2910 | } |
e1652a86 KS |
2911 | #ifdef HAVE_LOCAL_SOCKETS |
2912 | else if (EQ (tem, Qlocal)) | |
2913 | family = AF_LOCAL; | |
2914 | #endif | |
2915 | #ifdef AF_INET6 | |
2916 | else if (EQ (tem, Qipv6)) | |
2917 | family = AF_INET6; | |
2918 | #endif | |
2919 | else if (EQ (tem, Qipv4)) | |
2920 | family = AF_INET; | |
d311d28c | 2921 | else if (TYPE_RANGED_INTEGERP (int, tem)) |
e1652a86 KS |
2922 | family = XINT (tem); |
2923 | else | |
e690ca94 | 2924 | error ("Unknown address family"); |
e1652a86 | 2925 | |
e690ca94 KS |
2926 | ai.ai_family = family; |
2927 | ||
2928 | /* :service SERVICE -- string, integer (port number), or t (random port). */ | |
2929 | service = Fplist_get (contact, QCservice); | |
2930 | ||
66a9f7f4 SM |
2931 | /* :host HOST -- hostname, ip address, or 'local for localhost. */ |
2932 | host = Fplist_get (contact, QChost); | |
2933 | if (!NILP (host)) | |
2934 | { | |
2935 | if (EQ (host, Qlocal)) | |
ba3033ee JB |
2936 | /* Depending on setup, "localhost" may map to different IPv4 and/or |
2937 | IPv6 addresses, so it's better to be explicit. (Bug#6781) */ | |
2938 | host = build_string ("127.0.0.1"); | |
66a9f7f4 SM |
2939 | CHECK_STRING (host); |
2940 | } | |
2941 | ||
e690ca94 KS |
2942 | #ifdef HAVE_LOCAL_SOCKETS |
2943 | if (family == AF_LOCAL) | |
d0d6b7c5 | 2944 | { |
66a9f7f4 SM |
2945 | if (!NILP (host)) |
2946 | { | |
2947 | message (":family local ignores the :host \"%s\" property", | |
2948 | SDATA (host)); | |
2949 | contact = Fplist_put (contact, QChost, Qnil); | |
2950 | host = Qnil; | |
2951 | } | |
b7826503 | 2952 | CHECK_STRING (service); |
72af86bd | 2953 | memset (&address_un, 0, sizeof address_un); |
e690ca94 | 2954 | address_un.sun_family = AF_LOCAL; |
e99a530f PE |
2955 | if (sizeof address_un.sun_path <= SBYTES (service)) |
2956 | error ("Service name too long"); | |
2957 | strcpy (address_un.sun_path, SSDATA (service)); | |
e690ca94 KS |
2958 | ai.ai_addr = (struct sockaddr *) &address_un; |
2959 | ai.ai_addrlen = sizeof address_un; | |
2960 | goto open_socket; | |
d0d6b7c5 | 2961 | } |
e690ca94 | 2962 | #endif |
a319f7c1 | 2963 | |
798b64bb KH |
2964 | /* Slow down polling to every ten seconds. |
2965 | Some kernels have a bug which causes retrying connect to fail | |
2966 | after a connect. Polling can interfere with gethostbyname too. */ | |
2967 | #ifdef POLL_FOR_INPUT | |
84b31826 | 2968 | if (socktype != SOCK_DGRAM) |
e690ca94 | 2969 | { |
27e498e6 | 2970 | record_unwind_protect_void (run_all_atimers); |
e690ca94 KS |
2971 | bind_polling_period (10); |
2972 | } | |
798b64bb KH |
2973 | #endif |
2974 | ||
a319f7c1 | 2975 | #ifdef HAVE_GETADDRINFO |
e690ca94 KS |
2976 | /* If we have a host, use getaddrinfo to resolve both host and service. |
2977 | Otherwise, use getservbyname to lookup the service. */ | |
2978 | if (!NILP (host)) | |
2979 | { | |
2980 | ||
2981 | /* SERVICE can either be a string or int. | |
2982 | Convert to a C string for later use by getaddrinfo. */ | |
2983 | if (EQ (service, Qt)) | |
2984 | portstring = "0"; | |
2985 | else if (INTEGERP (service)) | |
2986 | { | |
c2982e87 | 2987 | sprintf (portbuf, "%"pI"d", XINT (service)); |
e690ca94 KS |
2988 | portstring = portbuf; |
2989 | } | |
2990 | else | |
2991 | { | |
2992 | CHECK_STRING (service); | |
42a5b22f | 2993 | portstring = SSDATA (service); |
e690ca94 KS |
2994 | } |
2995 | ||
2996 | immediate_quit = 1; | |
2997 | QUIT; | |
2998 | memset (&hints, 0, sizeof (hints)); | |
2999 | hints.ai_flags = 0; | |
e1652a86 | 3000 | hints.ai_family = family; |
e690ca94 KS |
3001 | hints.ai_socktype = socktype; |
3002 | hints.ai_protocol = 0; | |
08116b48 CY |
3003 | |
3004 | #ifdef HAVE_RES_INIT | |
3005 | res_init (); | |
3006 | #endif | |
3007 | ||
42a5b22f | 3008 | ret = getaddrinfo (SSDATA (host), portstring, &hints, &res); |
e690ca94 | 3009 | if (ret) |
f6270f62 | 3010 | #ifdef HAVE_GAI_STRERROR |
42a5b22f | 3011 | error ("%s/%s %s", SSDATA (host), portstring, gai_strerror (ret)); |
f6270f62 | 3012 | #else |
42a5b22f | 3013 | error ("%s/%s getaddrinfo error %d", SSDATA (host), portstring, ret); |
f6270f62 | 3014 | #endif |
e690ca94 | 3015 | immediate_quit = 0; |
a319f7c1 | 3016 | |
e690ca94 KS |
3017 | goto open_socket; |
3018 | } | |
3019 | #endif /* HAVE_GETADDRINFO */ | |
a319f7c1 | 3020 | |
e690ca94 KS |
3021 | /* We end up here if getaddrinfo is not defined, or in case no hostname |
3022 | has been specified (e.g. for a local server process). */ | |
3023 | ||
3024 | if (EQ (service, Qt)) | |
3025 | port = 0; | |
3026 | else if (INTEGERP (service)) | |
3027 | port = htons ((unsigned short) XINT (service)); | |
3028 | else | |
616da37c | 3029 | { |
e690ca94 KS |
3030 | struct servent *svc_info; |
3031 | CHECK_STRING (service); | |
42a5b22f | 3032 | svc_info = getservbyname (SSDATA (service), |
e690ca94 KS |
3033 | (socktype == SOCK_DGRAM ? "udp" : "tcp")); |
3034 | if (svc_info == 0) | |
d5db4077 | 3035 | error ("Unknown service: %s", SDATA (service)); |
e690ca94 KS |
3036 | port = svc_info->s_port; |
3037 | } | |
3038 | ||
72af86bd | 3039 | memset (&address_in, 0, sizeof address_in); |
e690ca94 KS |
3040 | address_in.sin_family = family; |
3041 | address_in.sin_addr.s_addr = INADDR_ANY; | |
3042 | address_in.sin_port = port; | |
3043 | ||
3044 | #ifndef HAVE_GETADDRINFO | |
3045 | if (!NILP (host)) | |
3046 | { | |
3047 | struct hostent *host_info_ptr; | |
3048 | ||
c5e87d10 | 3049 | /* gethostbyname may fail with TRY_AGAIN, but we don't honor that, |
f3d9532b | 3050 | as it may `hang' Emacs for a very long time. */ |
5d6c2aa3 RS |
3051 | immediate_quit = 1; |
3052 | QUIT; | |
08116b48 CY |
3053 | |
3054 | #ifdef HAVE_RES_INIT | |
3055 | res_init (); | |
3056 | #endif | |
3057 | ||
d5db4077 | 3058 | host_info_ptr = gethostbyname (SDATA (host)); |
5d6c2aa3 | 3059 | immediate_quit = 0; |
177c0ea7 | 3060 | |
e690ca94 KS |
3061 | if (host_info_ptr) |
3062 | { | |
72af86bd AS |
3063 | memcpy (&address_in.sin_addr, host_info_ptr->h_addr, |
3064 | host_info_ptr->h_length); | |
e690ca94 KS |
3065 | family = host_info_ptr->h_addrtype; |
3066 | address_in.sin_family = family; | |
3067 | } | |
3068 | else | |
3069 | /* Attempt to interpret host as numeric inet address */ | |
3070 | { | |
4624371d | 3071 | unsigned long numeric_addr; |
51b59d79 | 3072 | numeric_addr = inet_addr (SSDATA (host)); |
4624371d | 3073 | if (numeric_addr == -1) |
d5db4077 | 3074 | error ("Unknown host \"%s\"", SDATA (host)); |
d0d6b7c5 | 3075 | |
72af86bd AS |
3076 | memcpy (&address_in.sin_addr, &numeric_addr, |
3077 | sizeof (address_in.sin_addr)); | |
e690ca94 | 3078 | } |
d0d6b7c5 | 3079 | |
e690ca94 | 3080 | } |
dd2a17ab | 3081 | #endif /* not HAVE_GETADDRINFO */ |
d0d6b7c5 | 3082 | |
e690ca94 KS |
3083 | ai.ai_family = family; |
3084 | ai.ai_addr = (struct sockaddr *) &address_in; | |
3085 | ai.ai_addrlen = sizeof address_in; | |
3086 | ||
3087 | open_socket: | |
3088 | ||
dd2a17ab | 3089 | /* Do this in case we never enter the for-loop below. */ |
aed13378 | 3090 | count1 = SPECPDL_INDEX (); |
dd2a17ab | 3091 | s = -1; |
457a9bee | 3092 | |
dd2a17ab KS |
3093 | for (lres = res; lres; lres = lres->ai_next) |
3094 | { | |
f66c7cf8 | 3095 | ptrdiff_t optn; |
c5101a77 | 3096 | int optbits; |
6b61353c | 3097 | |
4dc343ee | 3098 | #ifdef WINDOWSNT |
649dbf36 | 3099 | retry_connect: |
4dc343ee | 3100 | #endif |
649dbf36 | 3101 | |
067428c1 PE |
3102 | s = socket (lres->ai_family, lres->ai_socktype | SOCK_CLOEXEC, |
3103 | lres->ai_protocol); | |
dd2a17ab KS |
3104 | if (s < 0) |
3105 | { | |
3106 | xerrno = errno; | |
3107 | continue; | |
3108 | } | |
0f2ee0c1 | 3109 | |
e690ca94 KS |
3110 | #ifdef DATAGRAM_SOCKETS |
3111 | if (!is_server && socktype == SOCK_DGRAM) | |
3112 | break; | |
3113 | #endif /* DATAGRAM_SOCKETS */ | |
3114 | ||
dd2a17ab | 3115 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3116 | if (is_non_blocking_client) |
dd2a17ab | 3117 | { |
dd2a17ab | 3118 | ret = fcntl (s, F_SETFL, O_NONBLOCK); |
dd2a17ab KS |
3119 | if (ret < 0) |
3120 | { | |
3121 | xerrno = errno; | |
3122 | emacs_close (s); | |
3123 | s = -1; | |
3124 | continue; | |
3125 | } | |
3126 | } | |
3127 | #endif | |
177c0ea7 | 3128 | |
dd2a17ab | 3129 | /* Make us close S if quit. */ |
27e498e6 | 3130 | record_unwind_protect_int (close_file_unwind, s); |
dd2a17ab | 3131 | |
6b61353c KH |
3132 | /* Parse network options in the arg list. |
3133 | We simply ignore anything which isn't a known option (including other keywords). | |
63136da6 | 3134 | An error is signaled if setting a known option fails. */ |
6b61353c KH |
3135 | for (optn = optbits = 0; optn < nargs-1; optn += 2) |
3136 | optbits |= set_socket_option (s, args[optn], args[optn+1]); | |
3137 | ||
e690ca94 KS |
3138 | if (is_server) |
3139 | { | |
3140 | /* Configure as a server socket. */ | |
6b61353c KH |
3141 | |
3142 | /* SO_REUSEADDR = 1 is default for server sockets; must specify | |
3143 | explicit :reuseaddr key to override this. */ | |
e690ca94 KS |
3144 | #ifdef HAVE_LOCAL_SOCKETS |
3145 | if (family != AF_LOCAL) | |
3146 | #endif | |
6b61353c KH |
3147 | if (!(optbits & (1 << OPIX_REUSEADDR))) |
3148 | { | |
3149 | int optval = 1; | |
3150 | if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval)) | |
3151 | report_file_error ("Cannot set reuse option on server socket", Qnil); | |
3152 | } | |
177c0ea7 | 3153 | |
e690ca94 KS |
3154 | if (bind (s, lres->ai_addr, lres->ai_addrlen)) |
3155 | report_file_error ("Cannot bind server socket", Qnil); | |
3156 | ||
3157 | #ifdef HAVE_GETSOCKNAME | |
3158 | if (EQ (service, Qt)) | |
3159 | { | |
3160 | struct sockaddr_in sa1; | |
401bf9b4 | 3161 | socklen_t len1 = sizeof (sa1); |
e690ca94 KS |
3162 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) |
3163 | { | |
3164 | ((struct sockaddr_in *)(lres->ai_addr))->sin_port = sa1.sin_port; | |
21bd170d | 3165 | service = make_number (ntohs (sa1.sin_port)); |
e690ca94 KS |
3166 | contact = Fplist_put (contact, QCservice, service); |
3167 | } | |
3168 | } | |
3169 | #endif | |
3170 | ||
84b31826 | 3171 | if (socktype != SOCK_DGRAM && listen (s, backlog)) |
e690ca94 KS |
3172 | report_file_error ("Cannot listen on server socket", Qnil); |
3173 | ||
3174 | break; | |
3175 | } | |
3176 | ||
dd2a17ab KS |
3177 | immediate_quit = 1; |
3178 | QUIT; | |
3179 | ||
dd2a17ab KS |
3180 | ret = connect (s, lres->ai_addr, lres->ai_addrlen); |
3181 | xerrno = errno; | |
3182 | ||
dd2a17ab KS |
3183 | if (ret == 0 || xerrno == EISCONN) |
3184 | { | |
dd2a17ab KS |
3185 | /* The unwind-protect will be discarded afterwards. |
3186 | Likewise for immediate_quit. */ | |
3187 | break; | |
3188 | } | |
3189 | ||
3190 | #ifdef NON_BLOCKING_CONNECT | |
3191 | #ifdef EINPROGRESS | |
e690ca94 | 3192 | if (is_non_blocking_client && xerrno == EINPROGRESS) |
dd2a17ab KS |
3193 | break; |
3194 | #else | |
3195 | #ifdef EWOULDBLOCK | |
e690ca94 | 3196 | if (is_non_blocking_client && xerrno == EWOULDBLOCK) |
dd2a17ab KS |
3197 | break; |
3198 | #endif | |
3199 | #endif | |
3200 | #endif | |
649dbf36 CY |
3201 | |
3202 | #ifndef WINDOWSNT | |
cd591dbc HE |
3203 | if (xerrno == EINTR) |
3204 | { | |
3205 | /* Unlike most other syscalls connect() cannot be called | |
3206 | again. (That would return EALREADY.) The proper way to | |
d35af63c | 3207 | wait for completion is pselect(). */ |
401bf9b4 PE |
3208 | int sc; |
3209 | socklen_t len; | |
cd591dbc HE |
3210 | SELECT_TYPE fdset; |
3211 | retry_select: | |
3212 | FD_ZERO (&fdset); | |
3213 | FD_SET (s, &fdset); | |
3214 | QUIT; | |
d35af63c | 3215 | sc = pselect (s + 1, NULL, &fdset, NULL, NULL, NULL); |
cd591dbc HE |
3216 | if (sc == -1) |
3217 | { | |
649dbf36 | 3218 | if (errno == EINTR) |
cd591dbc | 3219 | goto retry_select; |
649dbf36 | 3220 | else |
4e604a5d | 3221 | report_file_error ("Failed select", Qnil); |
cd591dbc HE |
3222 | } |
3223 | eassert (sc > 0); | |
649dbf36 CY |
3224 | |
3225 | len = sizeof xerrno; | |
3226 | eassert (FD_ISSET (s, &fdset)); | |
a773ed9a | 3227 | if (getsockopt (s, SOL_SOCKET, SO_ERROR, &xerrno, &len) < 0) |
4e604a5d | 3228 | report_file_error ("Failed getsockopt", Qnil); |
649dbf36 | 3229 | if (xerrno) |
4e604a5d | 3230 | report_file_errno ("Failed connect", Qnil, xerrno); |
a773ed9a | 3231 | break; |
cd591dbc | 3232 | } |
649dbf36 | 3233 | #endif /* !WINDOWSNT */ |
e333e864 | 3234 | |
0f2ee0c1 RS |
3235 | immediate_quit = 0; |
3236 | ||
dd2a17ab | 3237 | /* Discard the unwind protect closing S. */ |
5684cd6e | 3238 | specpdl_ptr = specpdl + count1; |
68c45bf0 | 3239 | emacs_close (s); |
dd2a17ab | 3240 | s = -1; |
649dbf36 CY |
3241 | |
3242 | #ifdef WINDOWSNT | |
3243 | if (xerrno == EINTR) | |
3244 | goto retry_connect; | |
3245 | #endif | |
dd2a17ab | 3246 | } |
457a9bee | 3247 | |
e690ca94 KS |
3248 | if (s >= 0) |
3249 | { | |
3250 | #ifdef DATAGRAM_SOCKETS | |
3251 | if (socktype == SOCK_DGRAM) | |
3252 | { | |
3253 | if (datagram_address[s].sa) | |
1088b922 | 3254 | emacs_abort (); |
23f86fce | 3255 | datagram_address[s].sa = xmalloc (lres->ai_addrlen); |
e690ca94 KS |
3256 | datagram_address[s].len = lres->ai_addrlen; |
3257 | if (is_server) | |
3258 | { | |
3259 | Lisp_Object remote; | |
72af86bd | 3260 | memset (datagram_address[s].sa, 0, lres->ai_addrlen); |
e690ca94 KS |
3261 | if (remote = Fplist_get (contact, QCremote), !NILP (remote)) |
3262 | { | |
3263 | int rfamily, rlen; | |
3264 | rlen = get_lisp_to_sockaddr_size (remote, &rfamily); | |
a9ebfa0b PE |
3265 | if (rlen != 0 && rfamily == lres->ai_family |
3266 | && rlen == lres->ai_addrlen) | |
e690ca94 KS |
3267 | conv_lisp_to_sockaddr (rfamily, remote, |
3268 | datagram_address[s].sa, rlen); | |
3269 | } | |
3270 | } | |
3271 | else | |
72af86bd | 3272 | memcpy (datagram_address[s].sa, lres->ai_addr, lres->ai_addrlen); |
e690ca94 KS |
3273 | } |
3274 | #endif | |
177c0ea7 | 3275 | contact = Fplist_put (contact, QCaddress, |
e690ca94 | 3276 | conv_sockaddr_to_lisp (lres->ai_addr, lres->ai_addrlen)); |
2185db04 KS |
3277 | #ifdef HAVE_GETSOCKNAME |
3278 | if (!is_server) | |
3279 | { | |
3280 | struct sockaddr_in sa1; | |
401bf9b4 | 3281 | socklen_t len1 = sizeof (sa1); |
2185db04 KS |
3282 | if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0) |
3283 | contact = Fplist_put (contact, QClocal, | |
d3da34e0 | 3284 | conv_sockaddr_to_lisp ((struct sockaddr *)&sa1, len1)); |
2185db04 KS |
3285 | } |
3286 | #endif | |
e690ca94 KS |
3287 | } |
3288 | ||
54b3b62f YM |
3289 | immediate_quit = 0; |
3290 | ||
dd2a17ab | 3291 | #ifdef HAVE_GETADDRINFO |
e690ca94 | 3292 | if (res != &ai) |
54b3b62f | 3293 | { |
4d7e6e51 | 3294 | block_input (); |
54b3b62f | 3295 | freeaddrinfo (res); |
4d7e6e51 | 3296 | unblock_input (); |
54b3b62f | 3297 | } |
dd2a17ab KS |
3298 | #endif |
3299 | ||
e690ca94 KS |
3300 | /* Discard the unwind protect for closing S, if any. */ |
3301 | specpdl_ptr = specpdl + count1; | |
3302 | ||
3303 | /* Unwind bind_polling_period and request_sigio. */ | |
3304 | unbind_to (count, Qnil); | |
3305 | ||
dd2a17ab KS |
3306 | if (s < 0) |
3307 | { | |
dd2a17ab KS |
3308 | /* If non-blocking got this far - and failed - assume non-blocking is |
3309 | not supported after all. This is probably a wrong assumption, but | |
e690ca94 KS |
3310 | the normal blocking calls to open-network-stream handles this error |
3311 | better. */ | |
3312 | if (is_non_blocking_client) | |
dd2a17ab | 3313 | return Qnil; |
dd2a17ab | 3314 | |
a773ed9a PE |
3315 | report_file_errno ((is_server |
3316 | ? "make server process failed" | |
3317 | : "make client process failed"), | |
3318 | contact, xerrno); | |
d0d6b7c5 | 3319 | } |
44ade2e9 | 3320 | |
d0d6b7c5 | 3321 | inch = s; |
59f23005 | 3322 | outch = s; |
d0d6b7c5 JB |
3323 | |
3324 | if (!NILP (buffer)) | |
3325 | buffer = Fget_buffer_create (buffer); | |
3326 | proc = make_process (name); | |
3327 | ||
3328 | chan_process[inch] = proc; | |
3329 | ||
d0d6b7c5 | 3330 | fcntl (inch, F_SETFL, O_NONBLOCK); |
d0d6b7c5 | 3331 | |
e690ca94 KS |
3332 | p = XPROCESS (proc); |
3333 | ||
6a09a33b PE |
3334 | pset_childp (p, contact); |
3335 | pset_plist (p, Fcopy_sequence (Fplist_get (contact, QCplist))); | |
3336 | pset_type (p, Qnetwork); | |
177c0ea7 | 3337 | |
6a09a33b PE |
3338 | pset_buffer (p, buffer); |
3339 | pset_sentinel (p, sentinel); | |
3340 | pset_filter (p, filter); | |
3341 | pset_log (p, Fplist_get (contact, QClog)); | |
e690ca94 | 3342 | if (tem = Fplist_get (contact, QCnoquery), !NILP (tem)) |
60f0fb11 | 3343 | p->kill_without_query = 1; |
e690ca94 | 3344 | if ((tem = Fplist_get (contact, QCstop), !NILP (tem))) |
6a09a33b | 3345 | pset_command (p, Qt); |
6bfd98e7 | 3346 | p->pid = 0; |
60f0fb11 SM |
3347 | p->infd = inch; |
3348 | p->outfd = outch; | |
84b31826 | 3349 | if (is_server && socktype != SOCK_DGRAM) |
6a09a33b | 3350 | pset_status (p, Qlisten); |
dd2a17ab | 3351 | |
f523e0c3 SM |
3352 | /* Make the process marker point into the process buffer (if any). */ |
3353 | if (BUFFERP (buffer)) | |
4d2b044c | 3354 | set_marker_both (p->mark, buffer, |
f523e0c3 SM |
3355 | BUF_ZV (XBUFFER (buffer)), |
3356 | BUF_ZV_BYTE (XBUFFER (buffer))); | |
3357 | ||
dd2a17ab | 3358 | #ifdef NON_BLOCKING_CONNECT |
e690ca94 | 3359 | if (is_non_blocking_client) |
dd2a17ab KS |
3360 | { |
3361 | /* We may get here if connect did succeed immediately. However, | |
3362 | in that case, we still need to signal this like a non-blocking | |
3363 | connection. */ | |
6a09a33b | 3364 | pset_status (p, Qconnect); |
dd2a17ab KS |
3365 | if (!FD_ISSET (inch, &connect_wait_mask)) |
3366 | { | |
3367 | FD_SET (inch, &connect_wait_mask); | |
3fad2ad2 | 3368 | FD_SET (inch, &write_mask); |
dd2a17ab KS |
3369 | num_pending_connects++; |
3370 | } | |
3371 | } | |
3372 | else | |
3373 | #endif | |
e690ca94 KS |
3374 | /* A server may have a client filter setting of Qt, but it must |
3375 | still listen for incoming connects unless it is stopped. */ | |
4d2b044c DA |
3376 | if ((!EQ (p->filter, Qt) && !EQ (p->command, Qt)) |
3377 | || (EQ (p->status, Qlisten) && NILP (p->command))) | |
dd2a17ab KS |
3378 | { |
3379 | FD_SET (inch, &input_wait_mask); | |
3380 | FD_SET (inch, &non_keyboard_wait_mask); | |
3381 | } | |
3382 | ||
7d0e672e RS |
3383 | if (inch > max_process_desc) |
3384 | max_process_desc = inch; | |
d0d6b7c5 | 3385 | |
e690ca94 KS |
3386 | tem = Fplist_member (contact, QCcoding); |
3387 | if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem)))) | |
3388 | tem = Qnil; /* No error message (too late!). */ | |
3389 | ||
67918941 RS |
3390 | { |
3391 | /* Setup coding systems for communicating with the network stream. */ | |
dbf31225 | 3392 | struct gcpro gcpro1; |
67918941 RS |
3393 | /* Qt denotes we have not yet called Ffind_operation_coding_system. */ |
3394 | Lisp_Object coding_systems = Qt; | |
b93aacde | 3395 | Lisp_Object fargs[5], val; |
67918941 | 3396 | |
e690ca94 | 3397 | if (!NILP (tem)) |
6b61353c KH |
3398 | { |
3399 | val = XCAR (XCDR (tem)); | |
3400 | if (CONSP (val)) | |
3401 | val = XCAR (val); | |
3402 | } | |
e690ca94 | 3403 | else if (!NILP (Vcoding_system_for_read)) |
67918941 | 3404 | val = Vcoding_system_for_read; |
4b4deea2 TT |
3405 | else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters))) |
3406 | || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))) | |
67918941 RS |
3407 | /* We dare not decode end-of-line format by setting VAL to |
3408 | Qraw_text, because the existing Emacs Lisp libraries | |
9858f6c3 | 3409 | assume that they receive bare code including a sequence of |
67918941 RS |
3410 | CR LF. */ |
3411 | val = Qnil; | |
3412 | else | |
3413 | { | |
991234f0 KS |
3414 | if (NILP (host) || NILP (service)) |
3415 | coding_systems = Qnil; | |
3416 | else | |
3417 | { | |
b93aacde PE |
3418 | fargs[0] = Qopen_network_stream, fargs[1] = name, |
3419 | fargs[2] = buffer, fargs[3] = host, fargs[4] = service; | |
dbf31225 | 3420 | GCPRO1 (proc); |
b93aacde | 3421 | coding_systems = Ffind_operation_coding_system (5, fargs); |
dbf31225 | 3422 | UNGCPRO; |
991234f0 | 3423 | } |
67918941 | 3424 | if (CONSP (coding_systems)) |
70949dac | 3425 | val = XCAR (coding_systems); |
67918941 | 3426 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3427 | val = XCAR (Vdefault_process_coding_system); |
67918941 RS |
3428 | else |
3429 | val = Qnil; | |
3430 | } | |
6a09a33b | 3431 | pset_decode_coding_system (p, val); |
0fa1789e | 3432 | |
e690ca94 | 3433 | if (!NILP (tem)) |
6b61353c KH |
3434 | { |
3435 | val = XCAR (XCDR (tem)); | |
3436 | if (CONSP (val)) | |
3437 | val = XCDR (val); | |
3438 | } | |
e690ca94 | 3439 | else if (!NILP (Vcoding_system_for_write)) |
67918941 | 3440 | val = Vcoding_system_for_write; |
4b4deea2 | 3441 | else if (NILP (BVAR (current_buffer, enable_multibyte_characters))) |
67918941 RS |
3442 | val = Qnil; |
3443 | else | |
3444 | { | |
3445 | if (EQ (coding_systems, Qt)) | |
3446 | { | |
991234f0 KS |
3447 | if (NILP (host) || NILP (service)) |
3448 | coding_systems = Qnil; | |
3449 | else | |
3450 | { | |
b93aacde PE |
3451 | fargs[0] = Qopen_network_stream, fargs[1] = name, |
3452 | fargs[2] = buffer, fargs[3] = host, fargs[4] = service; | |
dbf31225 | 3453 | GCPRO1 (proc); |
b93aacde | 3454 | coding_systems = Ffind_operation_coding_system (5, fargs); |
dbf31225 | 3455 | UNGCPRO; |
991234f0 | 3456 | } |
67918941 RS |
3457 | } |
3458 | if (CONSP (coding_systems)) | |
70949dac | 3459 | val = XCDR (coding_systems); |
67918941 | 3460 | else if (CONSP (Vdefault_process_coding_system)) |
70949dac | 3461 | val = XCDR (Vdefault_process_coding_system); |
67918941 RS |
3462 | else |
3463 | val = Qnil; | |
3464 | } | |
6a09a33b | 3465 | pset_encode_coding_system (p, val); |
67918941 | 3466 | } |
03f04413 | 3467 | setup_process_coding_systems (proc); |
0fa1789e | 3468 | |
6a09a33b | 3469 | pset_decoding_buf (p, empty_unibyte_string); |
60f0fb11 | 3470 | p->decoding_carryover = 0; |
6a09a33b | 3471 | pset_encoding_buf (p, empty_unibyte_string); |
0fa1789e | 3472 | |
e690ca94 | 3473 | p->inherit_coding_system_flag |
e6fca843 | 3474 | = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system); |
52a1b894 | 3475 | |
d0d6b7c5 JB |
3476 | UNGCPRO; |
3477 | return proc; | |
3478 | } | |
d0d6b7c5 | 3479 | |
6b61353c | 3480 | \f |
5e617bc2 | 3481 | #if defined (HAVE_NET_IF_H) |
6b61353c KH |
3482 | |
3483 | #ifdef SIOCGIFCONF | |
3484 | DEFUN ("network-interface-list", Fnetwork_interface_list, Snetwork_interface_list, 0, 0, 0, | |
3485 | doc: /* Return an alist of all network interfaces and their network address. | |
3486 | Each element is a cons, the car of which is a string containing the | |
3487 | interface name, and the cdr is the network address in internal | |
3488 | format; see the description of ADDRESS in `make-network-process'. */) | |
5842a27b | 3489 | (void) |
6b61353c KH |
3490 | { |
3491 | struct ifconf ifconf; | |
377538cb JD |
3492 | struct ifreq *ifreq; |
3493 | void *buf = NULL; | |
70c60eb2 | 3494 | ptrdiff_t buf_size = 512; |
0bce5d9e | 3495 | int s; |
6b61353c | 3496 | Lisp_Object res; |
3f5bef16 | 3497 | ptrdiff_t count; |
6b61353c | 3498 | |
067428c1 | 3499 | s = socket (AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0); |
6b61353c KH |
3500 | if (s < 0) |
3501 | return Qnil; | |
3f5bef16 PE |
3502 | count = SPECPDL_INDEX (); |
3503 | record_unwind_protect_int (close_file_unwind, s); | |
6b61353c | 3504 | |
76667214 | 3505 | do |
6b61353c | 3506 | { |
76667214 PE |
3507 | buf = xpalloc (buf, &buf_size, 1, INT_MAX, 1); |
3508 | ifconf.ifc_buf = buf; | |
3509 | ifconf.ifc_len = buf_size; | |
156bffbe AS |
3510 | if (ioctl (s, SIOCGIFCONF, &ifconf)) |
3511 | { | |
bacba3c2 | 3512 | emacs_close (s); |
76667214 | 3513 | xfree (buf); |
156bffbe AS |
3514 | return Qnil; |
3515 | } | |
6b61353c | 3516 | } |
76667214 | 3517 | while (ifconf.ifc_len == buf_size); |
6b61353c | 3518 | |
3f5bef16 | 3519 | res = unbind_to (count, Qnil); |
156bffbe AS |
3520 | ifreq = ifconf.ifc_req; |
3521 | while ((char *) ifreq < (char *) ifconf.ifc_req + ifconf.ifc_len) | |
6b61353c | 3522 | { |
377538cb JD |
3523 | struct ifreq *ifq = ifreq; |
3524 | #ifdef HAVE_STRUCT_IFREQ_IFR_ADDR_SA_LEN | |
156bffbe AS |
3525 | #define SIZEOF_IFREQ(sif) \ |
3526 | ((sif)->ifr_addr.sa_len < sizeof (struct sockaddr) \ | |
3527 | ? sizeof (*(sif)) : sizeof ((sif)->ifr_name) + (sif)->ifr_addr.sa_len) | |
377538cb JD |
3528 | |
3529 | int len = SIZEOF_IFREQ (ifq); | |
3530 | #else | |
3531 | int len = sizeof (*ifreq); | |
3532 | #endif | |
6b61353c | 3533 | char namebuf[sizeof (ifq->ifr_name) + 1]; |
156bffbe | 3534 | ifreq = (struct ifreq *) ((char *) ifreq + len); |
377538cb | 3535 | |
6b61353c KH |
3536 | if (ifq->ifr_addr.sa_family != AF_INET) |
3537 | continue; | |
377538cb | 3538 | |
72af86bd | 3539 | memcpy (namebuf, ifq->ifr_name, sizeof (ifq->ifr_name)); |
6b61353c KH |
3540 | namebuf[sizeof (ifq->ifr_name)] = 0; |
3541 | res = Fcons (Fcons (build_string (namebuf), | |
3542 | conv_sockaddr_to_lisp (&ifq->ifr_addr, | |
3543 | sizeof (struct sockaddr))), | |
3544 | res); | |
3545 | } | |
3546 | ||
377538cb | 3547 | xfree (buf); |
6b61353c KH |
3548 | return res; |
3549 | } | |
3550 | #endif /* SIOCGIFCONF */ | |
3551 | ||
5e617bc2 | 3552 | #if defined (SIOCGIFADDR) || defined (SIOCGIFHWADDR) || defined (SIOCGIFFLAGS) |
6b61353c KH |
3553 | |
3554 | struct ifflag_def { | |
3555 | int flag_bit; | |
91433552 | 3556 | const char *flag_sym; |
6b61353c KH |
3557 | }; |
3558 | ||
91433552 | 3559 | static const struct ifflag_def ifflag_table[] = { |
6b61353c KH |
3560 | #ifdef IFF_UP |
3561 | { IFF_UP, "up" }, | |
3562 | #endif | |
3563 | #ifdef IFF_BROADCAST | |
3564 | { IFF_BROADCAST, "broadcast" }, | |
3565 | #endif | |
3566 | #ifdef IFF_DEBUG | |
3567 | { IFF_DEBUG, "debug" }, | |
3568 | #endif | |
3569 | #ifdef IFF_LOOPBACK | |
3570 | { IFF_LOOPBACK, "loopback" }, | |
3571 | #endif | |
3572 | #ifdef IFF_POINTOPOINT | |
3573 | { IFF_POINTOPOINT, "pointopoint" }, | |
3574 | #endif | |
3575 | #ifdef IFF_RUNNING | |
3576 | { IFF_RUNNING, "running" }, | |
3577 | #endif | |
3578 | #ifdef IFF_NOARP | |
3579 | { IFF_NOARP, "noarp" }, | |
3580 | #endif | |
3581 | #ifdef IFF_PROMISC | |
3582 | { IFF_PROMISC, "promisc" }, | |
3583 | #endif | |
3584 | #ifdef IFF_NOTRAILERS | |
377538cb JD |
3585 | #ifdef NS_IMPL_COCOA |
3586 | /* Really means smart, notrailers is obsolete */ | |
3587 | { IFF_NOTRAILERS, "smart" }, | |
3588 | #else | |
6b61353c KH |
3589 | { IFF_NOTRAILERS, "notrailers" }, |
3590 | #endif | |
377538cb | 3591 | #endif |
6b61353c KH |
3592 | #ifdef IFF_ALLMULTI |
3593 | { IFF_ALLMULTI, "allmulti" }, | |
3594 | #endif | |
3595 | #ifdef IFF_MASTER | |
3596 | { IFF_MASTER, "master" }, | |
3597 | #endif | |
3598 | #ifdef IFF_SLAVE | |
3599 | { IFF_SLAVE, "slave" }, | |
3600 | #endif | |
3601 | #ifdef IFF_MULTICAST | |
3602 | { IFF_MULTICAST, "multicast" }, | |
3603 | #endif | |
3604 | #ifdef IFF_PORTSEL | |
3605 | { IFF_PORTSEL, "portsel" }, | |
3606 | #endif | |
3607 | #ifdef IFF_AUTOMEDIA | |
3608 | { IFF_AUTOMEDIA, "automedia" }, | |
3609 | #endif | |
3610 | #ifdef IFF_DYNAMIC | |
3611 | { IFF_DYNAMIC, "dynamic" }, | |
e1652a86 | 3612 | #endif |
2026418c YM |
3613 | #ifdef IFF_OACTIVE |
3614 | { IFF_OACTIVE, "oactive" }, /* OpenBSD: transmission in progress */ | |
e1652a86 KS |
3615 | #endif |
3616 | #ifdef IFF_SIMPLEX | |
3617 | { IFF_SIMPLEX, "simplex" }, /* OpenBSD: can't hear own transmissions */ | |
3618 | #endif | |
3619 | #ifdef IFF_LINK0 | |
3620 | { IFF_LINK0, "link0" }, /* OpenBSD: per link layer defined bit */ | |
3621 | #endif | |
3622 | #ifdef IFF_LINK1 | |
3623 | { IFF_LINK1, "link1" }, /* OpenBSD: per link layer defined bit */ | |
3624 | #endif | |
3625 | #ifdef IFF_LINK2 | |
3626 | { IFF_LINK2, "link2" }, /* OpenBSD: per link layer defined bit */ | |
6b61353c KH |
3627 | #endif |
3628 | { 0, 0 } | |
3629 | }; | |
3630 | ||
3631 | DEFUN ("network-interface-info", Fnetwork_interface_info, Snetwork_interface_info, 1, 1, 0, | |
3632 | doc: /* Return information about network interface named IFNAME. | |
3633 | The return value is a list (ADDR BCAST NETMASK HWADDR FLAGS), | |
3634 | where ADDR is the layer 3 address, BCAST is the layer 3 broadcast address, | |
e4920bc9 | 3635 | NETMASK is the layer 3 network mask, HWADDR is the layer 2 address, and |
6b61353c | 3636 | FLAGS is the current flags of the interface. */) |
5842a27b | 3637 | (Lisp_Object ifname) |
6b61353c KH |
3638 | { |
3639 | struct ifreq rq; | |
3640 | Lisp_Object res = Qnil; | |
3641 | Lisp_Object elt; | |
3642 | int s; | |
0bce5d9e | 3643 | bool any = 0; |
3f5bef16 | 3644 | ptrdiff_t count; |
0a0d27fb PE |
3645 | #if (! (defined SIOCGIFHWADDR && defined HAVE_STRUCT_IFREQ_IFR_HWADDR) \ |
3646 | && defined HAVE_GETIFADDRS && defined LLADDR) | |
377538cb JD |
3647 | struct ifaddrs *ifap; |
3648 | #endif | |
6b61353c KH |
3649 | |
3650 | CHECK_STRING (ifname); | |
3651 | ||
e99a530f PE |
3652 | if (sizeof rq.ifr_name <= SBYTES (ifname)) |
3653 | error ("interface name too long"); | |
3654 | strcpy (rq.ifr_name, SSDATA (ifname)); | |
6b61353c | 3655 | |
067428c1 | 3656 | s = socket (AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0); |
6b61353c KH |
3657 | if (s < 0) |
3658 | return Qnil; | |
3f5bef16 PE |
3659 | count = SPECPDL_INDEX (); |
3660 | record_unwind_protect_int (close_file_unwind, s); | |
6b61353c KH |
3661 | |
3662 | elt = Qnil; | |
5e617bc2 | 3663 | #if defined (SIOCGIFFLAGS) && defined (HAVE_STRUCT_IFREQ_IFR_FLAGS) |
6b61353c KH |
3664 | if (ioctl (s, SIOCGIFFLAGS, &rq) == 0) |
3665 | { | |
3666 | int flags = rq.ifr_flags; | |
91433552 | 3667 | const struct ifflag_def *fp; |
6b61353c KH |
3668 | int fnum; |
3669 | ||
377538cb JD |
3670 | /* If flags is smaller than int (i.e. short) it may have the high bit set |
3671 | due to IFF_MULTICAST. In that case, sign extending it into | |
3672 | an int is wrong. */ | |
3673 | if (flags < 0 && sizeof (rq.ifr_flags) < sizeof (flags)) | |
3674 | flags = (unsigned short) rq.ifr_flags; | |
3675 | ||
bc57d757 | 3676 | any = 1; |
82a80058 | 3677 | for (fp = ifflag_table; flags != 0 && fp->flag_sym; fp++) |
6b61353c KH |
3678 | { |
3679 | if (flags & fp->flag_bit) | |
3680 | { | |
3681 | elt = Fcons (intern (fp->flag_sym), elt); | |
3682 | flags -= fp->flag_bit; | |
3683 | } | |
3684 | } | |
fa3c87e1 | 3685 | for (fnum = 0; flags && fnum < 32; flags >>= 1, fnum++) |
6b61353c | 3686 | { |
fa3c87e1 | 3687 | if (flags & 1) |
6b61353c KH |
3688 | { |
3689 | elt = Fcons (make_number (fnum), elt); | |
3690 | } | |
3691 | } | |
3692 | } | |
3693 | #endif | |
3694 | res = Fcons (elt, res); | |
3695 | ||
3696 | elt = Qnil; | |
5e617bc2 | 3697 | #if defined (SIOCGIFHWADDR) && defined (HAVE_STRUCT_IFREQ_IFR_HWADDR) |
6b61353c KH |
3698 | if (ioctl (s, SIOCGIFHWADDR, &rq) == 0) |
3699 | { | |
3700 | Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil); | |
3701 | register struct Lisp_Vector *p = XVECTOR (hwaddr); | |
3702 | int n; | |
3703 | ||
bc57d757 | 3704 | any = 1; |
6b61353c KH |
3705 | for (n = 0; n < 6; n++) |
3706 | p->contents[n] = make_number (((unsigned char *)&rq.ifr_hwaddr.sa_data[0])[n]); | |
3707 | elt = Fcons (make_number (rq.ifr_hwaddr.sa_family), hwaddr); | |
3708 | } | |
5e617bc2 | 3709 | #elif defined (HAVE_GETIFADDRS) && defined (LLADDR) |
377538cb JD |
3710 | if (getifaddrs (&ifap) != -1) |
3711 | { | |
3712 | Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil); | |
3713 | register struct Lisp_Vector *p = XVECTOR (hwaddr); | |
3714 | struct ifaddrs *it; | |
3715 | ||
3716 | for (it = ifap; it != NULL; it = it->ifa_next) | |
3717 | { | |
3718 | struct sockaddr_dl *sdl = (struct sockaddr_dl*) it->ifa_addr; | |
3719 | unsigned char linkaddr[6]; | |
3720 | int n; | |
3721 | ||
3722 | if (it->ifa_addr->sa_family != AF_LINK | |
3723 | || strcmp (it->ifa_name, SSDATA (ifname)) != 0 | |
3724 | || sdl->sdl_alen != 6) | |
3725 | continue; | |
3726 | ||
5e617bc2 | 3727 | memcpy (linkaddr, LLADDR (sdl), sdl->sdl_alen); |
377538cb JD |
3728 | for (n = 0; n < 6; n++) |
3729 | p->contents[n] = make_number (linkaddr[n]); | |
3730 | ||
3731 | elt = Fcons (make_number (it->ifa_addr->sa_family), hwaddr); | |
3732 | break; | |
3733 | } | |
3734 | } | |
3735 | #ifdef HAVE_FREEIFADDRS | |
3736 | freeifaddrs (ifap); | |
6b61353c | 3737 | #endif |
377538cb JD |
3738 | |
3739 | #endif /* HAVE_GETIFADDRS && LLADDR */ | |
3740 | ||
6b61353c KH |
3741 | res = Fcons (elt, res); |
3742 | ||
3743 | elt = Qnil; | |
5e617bc2 | 3744 | #if defined (SIOCGIFNETMASK) && (defined (HAVE_STRUCT_IFREQ_IFR_NETMASK) || defined (HAVE_STRUCT_IFREQ_IFR_ADDR)) |
6b61353c KH |
3745 | if (ioctl (s, SIOCGIFNETMASK, &rq) == 0) |
3746 | { | |
bc57d757 | 3747 | any = 1; |
2026418c | 3748 | #ifdef HAVE_STRUCT_IFREQ_IFR_NETMASK |
6b61353c | 3749 | elt = conv_sockaddr_to_lisp (&rq.ifr_netmask, sizeof (rq.ifr_netmask)); |
2026418c YM |
3750 | #else |
3751 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); | |
3752 | #endif | |
6b61353c KH |
3753 | } |
3754 | #endif | |
3755 | res = Fcons (elt, res); | |
3756 | ||
3757 | elt = Qnil; | |
5e617bc2 | 3758 | #if defined (SIOCGIFBRDADDR) && defined (HAVE_STRUCT_IFREQ_IFR_BROADADDR) |
6b61353c KH |
3759 | if (ioctl (s, SIOCGIFBRDADDR, &rq) == 0) |
3760 | { | |
bc57d757 | 3761 | any = 1; |
6b61353c KH |
3762 | elt = conv_sockaddr_to_lisp (&rq.ifr_broadaddr, sizeof (rq.ifr_broadaddr)); |
3763 | } | |
3764 | #endif | |
3765 | res = Fcons (elt, res); | |
3766 | ||
3767 | elt = Qnil; | |
5e617bc2 | 3768 | #if defined (SIOCGIFADDR) && defined (HAVE_STRUCT_IFREQ_IFR_ADDR) |
6b61353c KH |
3769 | if (ioctl (s, SIOCGIFADDR, &rq) == 0) |
3770 | { | |
bc57d757 | 3771 | any = 1; |
6b61353c KH |
3772 | elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr)); |
3773 | } | |
3774 | #endif | |
3775 | res = Fcons (elt, res); | |
3776 | ||
3f5bef16 | 3777 | return unbind_to (count, any ? res : Qnil); |
6b61353c KH |
3778 | } |
3779 | #endif | |
5e617bc2 | 3780 | #endif /* defined (HAVE_NET_IF_H) */ |
6b61353c | 3781 | |
04391069 RS |
3782 | /* Turn off input and output for process PROC. */ |
3783 | ||
40ccffa6 | 3784 | static void |
d3da34e0 | 3785 | deactivate_process (Lisp_Object proc) |
d0d6b7c5 JB |
3786 | { |
3787 | register int inchannel, outchannel; | |
3788 | register struct Lisp_Process *p = XPROCESS (proc); | |
3789 | ||
9c6c6f49 CY |
3790 | #ifdef HAVE_GNUTLS |
3791 | /* Delete GnuTLS structures in PROC, if any. */ | |
3792 | emacs_gnutls_deinit (proc); | |
3793 | #endif /* HAVE_GNUTLS */ | |
3794 | ||
60f0fb11 SM |
3795 | inchannel = p->infd; |
3796 | outchannel = p->outfd; | |
d0d6b7c5 | 3797 | |
6b61353c | 3798 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 3799 | if (p->read_output_delay > 0) |
6b61353c KH |
3800 | { |
3801 | if (--process_output_delay_count < 0) | |
3802 | process_output_delay_count = 0; | |
60f0fb11 SM |
3803 | p->read_output_delay = 0; |
3804 | p->read_output_skip = 0; | |
6b61353c KH |
3805 | } |
3806 | #endif | |
f3d9532b | 3807 | |
a9f2c884 | 3808 | if (inchannel >= 0) |
d0d6b7c5 JB |
3809 | { |
3810 | /* Beware SIGCHLD hereabouts. */ | |
3811 | flush_pending_output (inchannel); | |
68c45bf0 | 3812 | emacs_close (inchannel); |
a9f2c884 | 3813 | if (outchannel >= 0 && outchannel != inchannel) |
68c45bf0 | 3814 | emacs_close (outchannel); |
d0d6b7c5 | 3815 | |
60f0fb11 SM |
3816 | p->infd = -1; |
3817 | p->outfd = -1; | |
e690ca94 KS |
3818 | #ifdef DATAGRAM_SOCKETS |
3819 | if (DATAGRAM_CHAN_P (inchannel)) | |
3820 | { | |
3821 | xfree (datagram_address[inchannel].sa); | |
3822 | datagram_address[inchannel].sa = 0; | |
3823 | datagram_address[inchannel].len = 0; | |
3824 | } | |
3825 | #endif | |
d0d6b7c5 JB |
3826 | chan_process[inchannel] = Qnil; |
3827 | FD_CLR (inchannel, &input_wait_mask); | |
a69281ff | 3828 | FD_CLR (inchannel, &non_keyboard_wait_mask); |
bad49fc7 | 3829 | #ifdef NON_BLOCKING_CONNECT |
dd2a17ab KS |
3830 | if (FD_ISSET (inchannel, &connect_wait_mask)) |
3831 | { | |
3832 | FD_CLR (inchannel, &connect_wait_mask); | |
3fad2ad2 | 3833 | FD_CLR (inchannel, &write_mask); |
dd2a17ab | 3834 | if (--num_pending_connects < 0) |
1088b922 | 3835 | emacs_abort (); |
dd2a17ab | 3836 | } |
bad49fc7 | 3837 | #endif |
7d0e672e RS |
3838 | if (inchannel == max_process_desc) |
3839 | { | |
7d0e672e RS |
3840 | /* We just closed the highest-numbered process input descriptor, |
3841 | so recompute the highest-numbered one now. */ | |
2878ba7e PE |
3842 | int i = inchannel; |
3843 | do | |
3844 | i--; | |
3845 | while (0 <= i && NILP (chan_process[i])); | |
3846 | ||
3847 | max_process_desc = i; | |
7d0e672e | 3848 | } |
d0d6b7c5 JB |
3849 | } |
3850 | } | |
3851 | ||
d0d6b7c5 JB |
3852 | \f |
3853 | DEFUN ("accept-process-output", Faccept_process_output, Saccept_process_output, | |
107ed38d | 3854 | 0, 4, 0, |
fdb82f93 PJ |
3855 | doc: /* Allow any pending output from subprocesses to be read by Emacs. |
3856 | It is read into the process' buffers or given to their filter functions. | |
3857 | Non-nil arg PROCESS means do not return until some output has been received | |
3858 | from PROCESS. | |
5088da42 | 3859 | |
2a7bb882 MR |
3860 | Non-nil second arg SECONDS and third arg MILLISEC are number of seconds |
3861 | and milliseconds to wait; return after that much time whether or not | |
3862 | there is any subprocess output. If SECONDS is a floating point number, | |
5088da42 | 3863 | it specifies a fractional number of seconds to wait. |
891bd142 | 3864 | The MILLISEC argument is obsolete and should be avoided. |
5088da42 | 3865 | |
107ed38d KS |
3866 | If optional fourth arg JUST-THIS-ONE is non-nil, only accept output |
3867 | from PROCESS, suspending reading output from other processes. | |
3868 | If JUST-THIS-ONE is an integer, don't run any timers either. | |
e0f24100 | 3869 | Return non-nil if we received any output before the timeout expired. */) |
5842a27b | 3870 | (register Lisp_Object process, Lisp_Object seconds, Lisp_Object millisec, Lisp_Object just_this_one) |
d0d6b7c5 | 3871 | { |
d35af63c PE |
3872 | intmax_t secs; |
3873 | int nsecs; | |
d0d6b7c5 | 3874 | |
0748d150 | 3875 | if (! NILP (process)) |
b7826503 | 3876 | CHECK_PROCESS (process); |
107ed38d KS |
3877 | else |
3878 | just_this_one = Qnil; | |
0748d150 | 3879 | |
891bd142 SM |
3880 | if (!NILP (millisec)) |
3881 | { /* Obsolete calling convention using integers rather than floats. */ | |
3882 | CHECK_NUMBER (millisec); | |
3883 | if (NILP (seconds)) | |
3884 | seconds = make_float (XINT (millisec) / 1000.0); | |
3885 | else | |
3886 | { | |
3887 | CHECK_NUMBER (seconds); | |
3888 | seconds = make_float (XINT (millisec) / 1000.0 + XINT (seconds)); | |
3889 | } | |
3890 | } | |
3891 | ||
d35af63c PE |
3892 | secs = 0; |
3893 | nsecs = -1; | |
3894 | ||
5088da42 | 3895 | if (!NILP (seconds)) |
d0d6b7c5 | 3896 | { |
d35af63c PE |
3897 | if (INTEGERP (seconds)) |
3898 | { | |
908589fd | 3899 | if (XINT (seconds) > 0) |
d35af63c PE |
3900 | { |
3901 | secs = XINT (seconds); | |
3902 | nsecs = 0; | |
3903 | } | |
3904 | } | |
3905 | else if (FLOATP (seconds)) | |
3906 | { | |
908589fd | 3907 | if (XFLOAT_DATA (seconds) > 0) |
d35af63c PE |
3908 | { |
3909 | EMACS_TIME t = EMACS_TIME_FROM_DOUBLE (XFLOAT_DATA (seconds)); | |
f1dd8073 | 3910 | secs = min (EMACS_SECS (t), WAIT_READING_MAX); |
d35af63c PE |
3911 | nsecs = EMACS_NSECS (t); |
3912 | } | |
3913 | } | |
3914 | else | |
3915 | wrong_type_argument (Qnumberp, seconds); | |
d0d6b7c5 | 3916 | } |
d35af63c PE |
3917 | else if (! NILP (process)) |
3918 | nsecs = 0; | |
d0d6b7c5 JB |
3919 | |
3920 | return | |
d35af63c | 3921 | (wait_reading_process_output (secs, nsecs, 0, 0, |
214d6069 KS |
3922 | Qnil, |
3923 | !NILP (process) ? XPROCESS (process) : NULL, | |
3924 | NILP (just_this_one) ? 0 : | |
3925 | !INTEGERP (just_this_one) ? 1 : -1) | |
d0d6b7c5 JB |
3926 | ? Qt : Qnil); |
3927 | } | |
3928 | ||
e690ca94 KS |
3929 | /* Accept a connection for server process SERVER on CHANNEL. */ |
3930 | ||
0bce5d9e | 3931 | static EMACS_INT connect_counter = 0; |
e690ca94 KS |
3932 | |
3933 | static void | |
d3da34e0 | 3934 | server_accept_connection (Lisp_Object server, int channel) |
e690ca94 KS |
3935 | { |
3936 | Lisp_Object proc, caller, name, buffer; | |
3937 | Lisp_Object contact, host, service; | |
3938 | struct Lisp_Process *ps= XPROCESS (server); | |
3939 | struct Lisp_Process *p; | |
3940 | int s; | |
3941 | union u_sockaddr { | |
3942 | struct sockaddr sa; | |
3943 | struct sockaddr_in in; | |
e1652a86 KS |
3944 | #ifdef AF_INET6 |
3945 | struct sockaddr_in6 in6; | |
3946 | #endif | |
e690ca94 KS |
3947 | #ifdef HAVE_LOCAL_SOCKETS |
3948 | struct sockaddr_un un; | |
3949 | #endif | |
3950 | } saddr; | |
401bf9b4 | 3951 | socklen_t len = sizeof saddr; |
3f5bef16 | 3952 | ptrdiff_t count; |
e690ca94 | 3953 | |
067428c1 | 3954 | s = accept4 (channel, &saddr.sa, &len, SOCK_CLOEXEC); |
e690ca94 KS |
3955 | |
3956 | if (s < 0) | |
3957 | { | |
3958 | int code = errno; | |
3959 | ||
3960 | if (code == EAGAIN) | |
3961 | return; | |
3962 | #ifdef EWOULDBLOCK | |
3963 | if (code == EWOULDBLOCK) | |
3964 | return; | |
3965 | #endif | |
3966 | ||
4d2b044c DA |
3967 | if (!NILP (ps->log)) |
3968 | call3 (ps->log, server, Qnil, | |
e690ca94 KS |
3969 | concat3 (build_string ("accept failed with code"), |
3970 | Fnumber_to_string (make_number (code)), | |
3971 | build_string ("\n"))); | |
3972 | return; | |
3973 | } | |
3974 | ||
3f5bef16 PE |
3975 | count = SPECPDL_INDEX (); |
3976 | record_unwind_protect_int (close_file_unwind, s); | |
3977 | ||
e690ca94 KS |
3978 | connect_counter++; |
3979 | ||
3980 | /* Setup a new process to handle the connection. */ | |
3981 | ||
3982 | /* Generate a unique identification of the caller, and build contact | |
3983 | information for this process. */ | |
3984 | host = Qt; | |
3985 | service = Qnil; | |
3986 | switch (saddr.sa.sa_family) | |
3987 | { | |
3988 | case AF_INET: | |
3989 | { | |
3990 | Lisp_Object args[5]; | |
3991 | unsigned char *ip = (unsigned char *)&saddr.in.sin_addr.s_addr; | |
3992 | args[0] = build_string ("%d.%d.%d.%d"); | |
3993 | args[1] = make_number (*ip++); | |
3994 | args[2] = make_number (*ip++); | |
3995 | args[3] = make_number (*ip++); | |
3996 | args[4] = make_number (*ip++); | |
3997 | host = Fformat (5, args); | |
3998 | service = make_number (ntohs (saddr.in.sin_port)); | |
3999 | ||
4000 | args[0] = build_string (" <%s:%d>"); | |
4001 | args[1] = host; | |
4002 | args[2] = service; | |
4003 | caller = Fformat (3, args); | |
4004 | } | |
4005 | break; | |
4006 | ||
e1652a86 KS |
4007 | #ifdef AF_INET6 |
4008 | case AF_INET6: | |
4009 | { | |
4010 | Lisp_Object args[9]; | |
4011 | uint16_t *ip6 = (uint16_t *)&saddr.in6.sin6_addr; | |
4012 | int i; | |
4013 | args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x"); | |
4014 | for (i = 0; i < 8; i++) | |
ed3751c8 | 4015 | args[i+1] = make_number (ntohs (ip6[i])); |
e1652a86 KS |
4016 | host = Fformat (9, args); |
4017 | service = make_number (ntohs (saddr.in.sin_port)); | |
4018 | ||
4019 | args[0] = build_string (" <[%s]:%d>"); | |
4020 | args[1] = host; | |
4021 | args[2] = service; | |
4022 | caller = Fformat (3, args); | |
4023 | } | |
4024 | break; | |
4025 | #endif | |
4026 | ||
e690ca94 KS |
4027 | #ifdef HAVE_LOCAL_SOCKETS |
4028 | case AF_LOCAL: | |
4029 | #endif | |
4030 | default: | |
4031 | caller = Fnumber_to_string (make_number (connect_counter)); | |
eef60308 | 4032 | caller = concat3 (build_string (" <"), caller, build_string (">")); |
e690ca94 KS |
4033 | break; |
4034 | } | |
4035 | ||
4036 | /* Create a new buffer name for this process if it doesn't have a | |
4037 | filter. The new buffer name is based on the buffer name or | |
4038 | process name of the server process concatenated with the caller | |
4039 | identification. */ | |
4040 | ||
1aa8d505 SM |
4041 | if (!(EQ (ps->filter, Qinternal_default_process_filter) |
4042 | || EQ (ps->filter, Qt))) | |
e690ca94 KS |
4043 | buffer = Qnil; |
4044 | else | |
4045 | { | |
4d2b044c | 4046 | buffer = ps->buffer; |
e690ca94 KS |
4047 | if (!NILP (buffer)) |
4048 | buffer = Fbuffer_name (buffer); | |
4049 | else | |
4d2b044c | 4050 | buffer = ps->name; |
e690ca94 KS |
4051 | if (!NILP (buffer)) |
4052 | { | |
4053 | buffer = concat2 (buffer, caller); | |
4054 | buffer = Fget_buffer_create (buffer); | |
4055 | } | |
4056 | } | |
4057 | ||
4058 | /* Generate a unique name for the new server process. Combine the | |
4059 | server process name with the caller identification. */ | |
4060 | ||
4d2b044c | 4061 | name = concat2 (ps->name, caller); |
e690ca94 KS |
4062 | proc = make_process (name); |
4063 | ||
4064 | chan_process[s] = proc; | |
4065 | ||
e690ca94 | 4066 | fcntl (s, F_SETFL, O_NONBLOCK); |
e690ca94 KS |
4067 | |
4068 | p = XPROCESS (proc); | |
4069 | ||
4070 | /* Build new contact information for this setup. */ | |
4d2b044c | 4071 | contact = Fcopy_sequence (ps->childp); |
e690ca94 KS |
4072 | contact = Fplist_put (contact, QCserver, Qnil); |
4073 | contact = Fplist_put (contact, QChost, host); | |
4074 | if (!NILP (service)) | |
4075 | contact = Fplist_put (contact, QCservice, service); | |
177c0ea7 | 4076 | contact = Fplist_put (contact, QCremote, |
e690ca94 KS |
4077 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4078 | #ifdef HAVE_GETSOCKNAME | |
4079 | len = sizeof saddr; | |
2185db04 | 4080 | if (getsockname (s, &saddr.sa, &len) == 0) |
177c0ea7 | 4081 | contact = Fplist_put (contact, QClocal, |
e690ca94 KS |
4082 | conv_sockaddr_to_lisp (&saddr.sa, len)); |
4083 | #endif | |
4084 | ||
6a09a33b PE |
4085 | pset_childp (p, contact); |
4086 | pset_plist (p, Fcopy_sequence (ps->plist)); | |
4087 | pset_type (p, Qnetwork); | |
ac4a7584 | 4088 | |
6a09a33b PE |
4089 | pset_buffer (p, buffer); |
4090 | pset_sentinel (p, ps->sentinel); | |
4091 | pset_filter (p, ps->filter); | |
4092 | pset_command (p, Qnil); | |
6bfd98e7 | 4093 | p->pid = 0; |
3f5bef16 PE |
4094 | |
4095 | /* Discard the unwind protect for closing S. */ | |
4096 | specpdl_ptr = specpdl + count; | |
4097 | ||
60f0fb11 SM |
4098 | p->infd = s; |
4099 | p->outfd = s; | |
6a09a33b | 4100 | pset_status (p, Qrun); |
e690ca94 KS |
4101 | |
4102 | /* Client processes for accepted connections are not stopped initially. */ | |
4d2b044c | 4103 | if (!EQ (p->filter, Qt)) |
e690ca94 KS |
4104 | { |
4105 | FD_SET (s, &input_wait_mask); | |
4106 | FD_SET (s, &non_keyboard_wait_mask); | |
4107 | } | |
4108 | ||
4109 | if (s > max_process_desc) | |
4110 | max_process_desc = s; | |
4111 | ||
177c0ea7 | 4112 | /* Setup coding system for new process based on server process. |
e690ca94 KS |
4113 | This seems to be the proper thing to do, as the coding system |
4114 | of the new process should reflect the settings at the time the | |
1aa8d505 | 4115 | server socket was opened; not the current settings. */ |
e690ca94 | 4116 | |
6a09a33b PE |
4117 | pset_decode_coding_system (p, ps->decode_coding_system); |
4118 | pset_encode_coding_system (p, ps->encode_coding_system); | |
03f04413 | 4119 | setup_process_coding_systems (proc); |
e690ca94 | 4120 | |
6a09a33b | 4121 | pset_decoding_buf (p, empty_unibyte_string); |
60f0fb11 | 4122 | p->decoding_carryover = 0; |
6a09a33b | 4123 | pset_encoding_buf (p, empty_unibyte_string); |
e690ca94 KS |
4124 | |
4125 | p->inherit_coding_system_flag | |
60f0fb11 | 4126 | = (NILP (buffer) ? 0 : ps->inherit_coding_system_flag); |
e690ca94 | 4127 | |
4d2b044c DA |
4128 | if (!NILP (ps->log)) |
4129 | call3 (ps->log, server, proc, | |
e690ca94 KS |
4130 | concat3 (build_string ("accept from "), |
4131 | (STRINGP (host) ? host : build_string ("-")), | |
4132 | build_string ("\n"))); | |
4133 | ||
1aa8d505 SM |
4134 | exec_sentinel (proc, |
4135 | concat3 (build_string ("open from "), | |
4136 | (STRINGP (host) ? host : build_string ("-")), | |
4137 | build_string ("\n"))); | |
e690ca94 KS |
4138 | } |
4139 | ||
d0d6b7c5 JB |
4140 | /* This variable is different from waiting_for_input in keyboard.c. |
4141 | It is used to communicate to a lisp process-filter/sentinel (via the | |
f3d9532b | 4142 | function Fwaiting_for_user_input_p below) whether Emacs was waiting |
d0d6b7c5 JB |
4143 | for user-input when that process-filter was called. |
4144 | waiting_for_input cannot be used as that is by definition 0 when | |
d430ee71 RS |
4145 | lisp code is being evalled. |
4146 | This is also used in record_asynch_buffer_change. | |
4147 | For that purpose, this must be 0 | |
214d6069 | 4148 | when not inside wait_reading_process_output. */ |
d0d6b7c5 JB |
4149 | static int waiting_for_user_input_p; |
4150 | ||
27e498e6 PE |
4151 | static void |
4152 | wait_reading_process_output_unwind (int data) | |
2beb96f9 | 4153 | { |
27e498e6 | 4154 | waiting_for_user_input_p = data; |
2beb96f9 KS |
4155 | } |
4156 | ||
c573ae8e | 4157 | /* This is here so breakpoints can be put on it. */ |
dfcf069d | 4158 | static void |
d3da34e0 | 4159 | wait_reading_process_output_1 (void) |
c573ae8e RS |
4160 | { |
4161 | } | |
4162 | ||
d0d6b7c5 JB |
4163 | /* Read and dispose of subprocess output while waiting for timeout to |
4164 | elapse and/or keyboard input to be available. | |
4165 | ||
de6fd4b9 | 4166 | TIME_LIMIT is: |
d35af63c PE |
4167 | timeout in seconds |
4168 | If negative, gobble data immediately available but don't wait for any. | |
d0d6b7c5 | 4169 | |
d35af63c PE |
4170 | NSECS is: |
4171 | an additional duration to wait, measured in nanoseconds | |
4172 | If TIME_LIMIT is zero, then: | |
4173 | If NSECS == 0, there is no limit. | |
d188e26b | 4174 | If NSECS > 0, the timeout consists of NSECS only. |
d35af63c | 4175 | If NSECS < 0, gobble data immediately, as if TIME_LIMIT were negative. |
6e4f3667 | 4176 | |
a0bee46f | 4177 | READ_KBD is: |
d0d6b7c5 JB |
4178 | 0 to ignore keyboard input, or |
4179 | 1 to return when input is available, or | |
84aa3ace | 4180 | -1 meaning caller will actually read the input, so don't throw to |
d0d6b7c5 | 4181 | the quit handler, or |
d0d6b7c5 | 4182 | |
9fa1de30 | 4183 | DO_DISPLAY means redisplay should be done to show subprocess |
107ed38d | 4184 | output that arrives. |
d0d6b7c5 | 4185 | |
b89a415a KS |
4186 | If WAIT_FOR_CELL is a cons cell, wait until its car is non-nil |
4187 | (and gobble terminal input into the buffer if any arrives). | |
d0d6b7c5 | 4188 | |
b89a415a | 4189 | If WAIT_PROC is specified, wait until something arrives from that |
e0f24100 | 4190 | process. The return value is true if we read some input from |
b89a415a KS |
4191 | that process. |
4192 | ||
0bce5d9e | 4193 | If JUST_WAIT_PROC is nonzero, handle only output from WAIT_PROC |
b89a415a KS |
4194 | (suspending output from other processes). A negative value |
4195 | means don't run any timers either. | |
4196 | ||
e0f24100 | 4197 | If WAIT_PROC is specified, then the function returns true if we |
b89a415a | 4198 | received input from that process before the timeout elapsed. |
e0f24100 | 4199 | Otherwise, return true if we received input from any process. */ |
d0d6b7c5 | 4200 | |
0bce5d9e | 4201 | bool |
d35af63c | 4202 | wait_reading_process_output (intmax_t time_limit, int nsecs, int read_kbd, |
9fa1de30 | 4203 | bool do_display, |
d5a3eaaf AS |
4204 | Lisp_Object wait_for_cell, |
4205 | struct Lisp_Process *wait_proc, int just_wait_proc) | |
d0d6b7c5 | 4206 | { |
0bce5d9e | 4207 | int channel, nfds; |
855448dc | 4208 | SELECT_TYPE Available; |
3fad2ad2 | 4209 | SELECT_TYPE Writeok; |
0bce5d9e PE |
4210 | bool check_write; |
4211 | int check_delay; | |
4212 | bool no_avail; | |
d0d6b7c5 JB |
4213 | int xerrno; |
4214 | Lisp_Object proc; | |
41d03b9a | 4215 | EMACS_TIME timeout, end_time; |
a9f2c884 | 4216 | int wait_channel = -1; |
0bce5d9e | 4217 | bool got_some_input = 0; |
d311d28c | 4218 | ptrdiff_t count = SPECPDL_INDEX (); |
d0d6b7c5 JB |
4219 | |
4220 | FD_ZERO (&Available); | |
3fad2ad2 | 4221 | FD_ZERO (&Writeok); |
d0d6b7c5 | 4222 | |
d35af63c | 4223 | if (time_limit == 0 && nsecs == 0 && wait_proc && !NILP (Vinhibit_quit) |
4d2b044c DA |
4224 | && !(CONSP (wait_proc->status) |
4225 | && EQ (XCAR (wait_proc->status), Qexit))) | |
2f73da9c | 4226 | message1 ("Blocking call to accept-process-output with quit inhibited!!"); |
2b0a91e7 | 4227 | |
b89a415a KS |
4228 | /* If wait_proc is a process to watch, set wait_channel accordingly. */ |
4229 | if (wait_proc != NULL) | |
60f0fb11 | 4230 | wait_channel = wait_proc->infd; |
84aa3ace | 4231 | |
27e498e6 PE |
4232 | record_unwind_protect_int (wait_reading_process_output_unwind, |
4233 | waiting_for_user_input_p); | |
b89a415a | 4234 | waiting_for_user_input_p = read_kbd; |
d0d6b7c5 | 4235 | |
d35af63c PE |
4236 | if (time_limit < 0) |
4237 | { | |
4238 | time_limit = 0; | |
4239 | nsecs = -1; | |
4240 | } | |
7216e43b | 4241 | else if (TYPE_MAXIMUM (time_t) < time_limit) |
d35af63c PE |
4242 | time_limit = TYPE_MAXIMUM (time_t); |
4243 | ||
d0d6b7c5 JB |
4244 | /* Since we may need to wait several times, |
4245 | compute the absolute time to return at. */ | |
908589fd | 4246 | if (time_limit || nsecs > 0) |
d0d6b7c5 | 4247 | { |
e9a9ae03 PE |
4248 | timeout = make_emacs_time (time_limit, nsecs); |
4249 | end_time = add_emacs_time (current_emacs_time (), timeout); | |
d0d6b7c5 JB |
4250 | } |
4251 | ||
d0d6b7c5 JB |
4252 | while (1) |
4253 | { | |
0bce5d9e | 4254 | bool timeout_reduced_for_timers = 0; |
209c6a58 | 4255 | |
d0d6b7c5 JB |
4256 | /* If calling from keyboard input, do not quit |
4257 | since we want to return C-g as an input character. | |
4258 | Otherwise, do pending quit if requested. */ | |
b89a415a | 4259 | if (read_kbd >= 0) |
d0d6b7c5 | 4260 | QUIT; |
4d7e6e51 | 4261 | else if (pending_signals) |
c3eff1b0 | 4262 | process_pending_signals (); |
d0d6b7c5 | 4263 | |
889255b4 | 4264 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 4265 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
889255b4 RS |
4266 | break; |
4267 | ||
1aa8d505 SM |
4268 | /* Compute time from now till when time limit is up. */ |
4269 | /* Exit if already run out. */ | |
d35af63c | 4270 | if (nsecs < 0) |
d0d6b7c5 | 4271 | { |
216ee680 | 4272 | /* A negative timeout means |
d0d6b7c5 JB |
4273 | gobble output available now |
4274 | but don't wait at all. */ | |
4275 | ||
e9a9ae03 | 4276 | timeout = make_emacs_time (0, 0); |
d0d6b7c5 | 4277 | } |
908589fd | 4278 | else if (time_limit || nsecs > 0) |
d0d6b7c5 | 4279 | { |
e9a9ae03 PE |
4280 | EMACS_TIME now = current_emacs_time (); |
4281 | if (EMACS_TIME_LE (end_time, now)) | |
d0d6b7c5 | 4282 | break; |
e9a9ae03 | 4283 | timeout = sub_emacs_time (end_time, now); |
d0d6b7c5 JB |
4284 | } |
4285 | else | |
4286 | { | |
e9a9ae03 | 4287 | timeout = make_emacs_time (100000, 0); |
d0d6b7c5 JB |
4288 | } |
4289 | ||
f854a00b RS |
4290 | /* Normally we run timers here. |
4291 | But not if wait_for_cell; in those cases, | |
4292 | the wait is supposed to be short, | |
4293 | and those callers cannot handle running arbitrary Lisp code here. */ | |
107ed38d | 4294 | if (NILP (wait_for_cell) |
b89a415a | 4295 | && just_wait_proc >= 0) |
fb4c3627 | 4296 | { |
c0239a0b | 4297 | EMACS_TIME timer_delay; |
c573ae8e | 4298 | |
9baacf76 | 4299 | do |
c573ae8e | 4300 | { |
9fa1de30 | 4301 | unsigned old_timers_run = timers_run; |
c88164fe | 4302 | struct buffer *old_buffer = current_buffer; |
70bb1e5f | 4303 | Lisp_Object old_window = selected_window; |
177c0ea7 | 4304 | |
f868cd8a | 4305 | timer_delay = timer_check (); |
a2fab450 GM |
4306 | |
4307 | /* If a timer has run, this might have changed buffers | |
4308 | an alike. Make read_key_sequence aware of that. */ | |
4309 | if (timers_run != old_timers_run | |
70bb1e5f CY |
4310 | && (old_buffer != current_buffer |
4311 | || !EQ (old_window, selected_window)) | |
a2fab450 GM |
4312 | && waiting_for_user_input_p == -1) |
4313 | record_asynch_buffer_change (); | |
177c0ea7 | 4314 | |
9baacf76 GM |
4315 | if (timers_run != old_timers_run && do_display) |
4316 | /* We must retry, since a timer may have requeued itself | |
4317 | and that could alter the time_delay. */ | |
3007ebfb | 4318 | redisplay_preserve_echo_area (9); |
9baacf76 GM |
4319 | else |
4320 | break; | |
c573ae8e | 4321 | } |
9baacf76 | 4322 | while (!detect_input_pending ()); |
c573ae8e | 4323 | |
69645afc | 4324 | /* If there is unread keyboard input, also return. */ |
b89a415a | 4325 | if (read_kbd != 0 |
69645afc RS |
4326 | && requeued_events_pending_p ()) |
4327 | break; | |
4328 | ||
216ee680 | 4329 | /* A negative timeout means do not wait at all. */ |
908589fd | 4330 | if (nsecs >= 0) |
fb4c3627 | 4331 | { |
d35af63c | 4332 | if (EMACS_TIME_VALID_P (timer_delay)) |
c0239a0b | 4333 | { |
d35af63c | 4334 | if (EMACS_TIME_LT (timer_delay, timeout)) |
209c6a58 CY |
4335 | { |
4336 | timeout = timer_delay; | |
4337 | timeout_reduced_for_timers = 1; | |
4338 | } | |
d35af63c PE |
4339 | } |
4340 | else | |
4341 | { | |
4342 | /* This is so a breakpoint can be put here. */ | |
4343 | wait_reading_process_output_1 (); | |
c0239a0b | 4344 | } |
c573ae8e | 4345 | } |
fb4c3627 RS |
4346 | } |
4347 | ||
90ab1a81 JB |
4348 | /* Cause C-g and alarm signals to take immediate action, |
4349 | and cause input available signals to zero out timeout. | |
4350 | ||
4351 | It is important that we do this before checking for process | |
4352 | activity. If we get a SIGCHLD after the explicit checks for | |
4353 | process activity, timeout is the only way we will know. */ | |
b89a415a | 4354 | if (read_kbd < 0) |
90ab1a81 JB |
4355 | set_waiting_for_input (&timeout); |
4356 | ||
6be429b1 JB |
4357 | /* If status of something has changed, and no input is |
4358 | available, notify the user of the change right away. After | |
4359 | this explicit check, we'll let the SIGCHLD handler zap | |
e42bdf01 CY |
4360 | timeout to get our attention. */ |
4361 | if (update_tick != process_tick) | |
6be429b1 | 4362 | { |
bad49fc7 | 4363 | SELECT_TYPE Atemp; |
bad49fc7 | 4364 | SELECT_TYPE Ctemp; |
dd2a17ab | 4365 | |
cb768704 J |
4366 | if (kbd_on_hold_p ()) |
4367 | FD_ZERO (&Atemp); | |
4368 | else | |
4369 | Atemp = input_wait_mask; | |
3fad2ad2 | 4370 | Ctemp = write_mask; |
bad49fc7 | 4371 | |
e9a9ae03 | 4372 | timeout = make_emacs_time (0, 0); |
d35af63c PE |
4373 | if ((pselect (max (max_process_desc, max_input_desc) + 1, |
4374 | &Atemp, | |
bad49fc7 | 4375 | #ifdef NON_BLOCKING_CONNECT |
d35af63c | 4376 | (num_pending_connects > 0 ? &Ctemp : NULL), |
bad49fc7 | 4377 | #else |
d35af63c | 4378 | NULL, |
bad49fc7 | 4379 | #endif |
d35af63c | 4380 | NULL, &timeout, NULL) |
ecd1f654 | 4381 | <= 0)) |
90ab1a81 JB |
4382 | { |
4383 | /* It's okay for us to do this and then continue with | |
a0e4d3f3 | 4384 | the loop, since timeout has already been zeroed out. */ |
90ab1a81 | 4385 | clear_waiting_for_input (); |
ff6daed3 | 4386 | status_notify (NULL); |
e42bdf01 | 4387 | if (do_display) redisplay_preserve_echo_area (13); |
90ab1a81 | 4388 | } |
6be429b1 JB |
4389 | } |
4390 | ||
dd2a17ab | 4391 | /* Don't wait for output from a non-running process. Just |
63136da6 | 4392 | read whatever data has already been received. */ |
6bfd98e7 | 4393 | if (wait_proc && wait_proc->raw_status_new) |
6be429b1 | 4394 | update_status (wait_proc); |
6bfd98e7 | 4395 | if (wait_proc |
4d2b044c DA |
4396 | && ! EQ (wait_proc->status, Qrun) |
4397 | && ! EQ (wait_proc->status, Qconnect)) | |
9aa2a7f4 | 4398 | { |
f86852b4 | 4399 | bool read_some_bytes = 0; |
7ce63188 | 4400 | |
9aa2a7f4 | 4401 | clear_waiting_for_input (); |
7ce63188 RS |
4402 | XSETPROCESS (proc, wait_proc); |
4403 | ||
4404 | /* Read data from the process, until we exhaust it. */ | |
60f0fb11 | 4405 | while (wait_proc->infd >= 0) |
215b45e9 | 4406 | { |
f86852b4 | 4407 | int nread = read_process_output (proc, wait_proc->infd); |
e1b37c34 GM |
4408 | |
4409 | if (nread == 0) | |
4410 | break; | |
4411 | ||
908589fd | 4412 | if (nread > 0) |
f86852b4 | 4413 | got_some_input = read_some_bytes = 1; |
22626a85 | 4414 | else if (nread == -1 && (errno == EIO || errno == EAGAIN)) |
63136da6 | 4415 | break; |
e1b37c34 GM |
4416 | #ifdef EWOULDBLOCK |
4417 | else if (nread == -1 && EWOULDBLOCK == errno) | |
63136da6 | 4418 | break; |
215b45e9 RS |
4419 | #endif |
4420 | } | |
f86852b4 | 4421 | if (read_some_bytes && do_display) |
3007ebfb | 4422 | redisplay_preserve_echo_area (10); |
7ce63188 | 4423 | |
9aa2a7f4 JB |
4424 | break; |
4425 | } | |
6be429b1 | 4426 | |
d0d6b7c5 JB |
4427 | /* Wait till there is something to do */ |
4428 | ||
b89a415a | 4429 | if (wait_proc && just_wait_proc) |
107ed38d | 4430 | { |
60f0fb11 | 4431 | if (wait_proc->infd < 0) /* Terminated */ |
b89a415a | 4432 | break; |
60f0fb11 | 4433 | FD_SET (wait_proc->infd, &Available); |
bad49fc7 | 4434 | check_delay = 0; |
3fad2ad2 | 4435 | check_write = 0; |
107ed38d KS |
4436 | } |
4437 | else if (!NILP (wait_for_cell)) | |
dd2a17ab KS |
4438 | { |
4439 | Available = non_process_wait_mask; | |
bad49fc7 | 4440 | check_delay = 0; |
3fad2ad2 | 4441 | check_write = 0; |
dd2a17ab | 4442 | } |
a69281ff | 4443 | else |
dd2a17ab | 4444 | { |
b89a415a | 4445 | if (! read_kbd) |
dd2a17ab KS |
4446 | Available = non_keyboard_wait_mask; |
4447 | else | |
4448 | Available = input_wait_mask; | |
3fad2ad2 | 4449 | Writeok = write_mask; |
82d6e50b J |
4450 | #ifdef SELECT_CANT_DO_WRITE_MASK |
4451 | check_write = 0; | |
4452 | #else | |
3fad2ad2 | 4453 | check_write = 1; |
82d6e50b | 4454 | #endif |
6b61353c | 4455 | check_delay = wait_channel >= 0 ? 0 : process_output_delay_count; |
dd2a17ab | 4456 | } |
d0d6b7c5 | 4457 | |
ff11dfa1 | 4458 | /* If frame size has changed or the window is newly mapped, |
ffd56f97 JB |
4459 | redisplay now, before we start to wait. There is a race |
4460 | condition here; if a SIGIO arrives between now and the select | |
016899c0 JB |
4461 | and indicates that a frame is trashed, the select may block |
4462 | displaying a trashed screen. */ | |
5164ee8e | 4463 | if (frame_garbaged && do_display) |
7286affd RS |
4464 | { |
4465 | clear_waiting_for_input (); | |
3007ebfb | 4466 | redisplay_preserve_echo_area (11); |
b89a415a | 4467 | if (read_kbd < 0) |
7efe788e | 4468 | set_waiting_for_input (&timeout); |
7286affd | 4469 | } |
ffd56f97 | 4470 | |
029529ac CY |
4471 | /* Skip the `select' call if input is available and we're |
4472 | waiting for keyboard input or a cell change (which can be | |
4473 | triggered by processing X events). In the latter case, set | |
4474 | nfds to 1 to avoid breaking the loop. */ | |
dd2a17ab | 4475 | no_avail = 0; |
029529ac CY |
4476 | if ((read_kbd || !NILP (wait_for_cell)) |
4477 | && detect_input_pending ()) | |
0a65b032 | 4478 | { |
029529ac | 4479 | nfds = read_kbd ? 0 : 1; |
dd2a17ab | 4480 | no_avail = 1; |
0a65b032 | 4481 | } |
029529ac CY |
4482 | |
4483 | if (!no_avail) | |
dd2a17ab | 4484 | { |
6b61353c KH |
4485 | |
4486 | #ifdef ADAPTIVE_READ_BUFFERING | |
db853b7a | 4487 | /* Set the timeout for adaptive read buffering if any |
60f0fb11 | 4488 | process has non-zero read_output_skip and non-zero |
db853b7a KS |
4489 | read_output_delay, and we are not reading output for a |
4490 | specific wait_channel. It is not executed if | |
4491 | Vprocess_adaptive_read_buffering is nil. */ | |
6b61353c KH |
4492 | if (process_output_skip && check_delay > 0) |
4493 | { | |
d35af63c PE |
4494 | int nsecs = EMACS_NSECS (timeout); |
4495 | if (EMACS_SECS (timeout) > 0 || nsecs > READ_OUTPUT_DELAY_MAX) | |
4496 | nsecs = READ_OUTPUT_DELAY_MAX; | |
6b61353c KH |
4497 | for (channel = 0; check_delay > 0 && channel <= max_process_desc; channel++) |
4498 | { | |
4499 | proc = chan_process[channel]; | |
4500 | if (NILP (proc)) | |
4501 | continue; | |
db853b7a | 4502 | /* Find minimum non-zero read_output_delay among the |
60f0fb11 SM |
4503 | processes with non-zero read_output_skip. */ |
4504 | if (XPROCESS (proc)->read_output_delay > 0) | |
6b61353c KH |
4505 | { |
4506 | check_delay--; | |
60f0fb11 | 4507 | if (!XPROCESS (proc)->read_output_skip) |
6b61353c KH |
4508 | continue; |
4509 | FD_CLR (channel, &Available); | |
60f0fb11 | 4510 | XPROCESS (proc)->read_output_skip = 0; |
d35af63c PE |
4511 | if (XPROCESS (proc)->read_output_delay < nsecs) |
4512 | nsecs = XPROCESS (proc)->read_output_delay; | |
6b61353c KH |
4513 | } |
4514 | } | |
e9a9ae03 | 4515 | timeout = make_emacs_time (0, nsecs); |
6b61353c KH |
4516 | process_output_skip = 0; |
4517 | } | |
4518 | #endif | |
0fda9b75 | 4519 | |
b33f93ee JD |
4520 | #if defined (HAVE_NS) |
4521 | nfds = ns_select | |
4522 | #elif defined (HAVE_GLIB) | |
4523 | nfds = xg_select | |
edfda783 | 4524 | #else |
d35af63c | 4525 | nfds = pselect |
edfda783 | 4526 | #endif |
3fad2ad2 J |
4527 | (max (max_process_desc, max_input_desc) + 1, |
4528 | &Available, | |
7d652d97 | 4529 | (check_write ? &Writeok : 0), |
d35af63c | 4530 | NULL, &timeout, NULL); |
e061a11b TZ |
4531 | |
4532 | #ifdef HAVE_GNUTLS | |
4533 | /* GnuTLS buffers data internally. In lowat mode it leaves | |
4534 | some data in the TCP buffers so that select works, but | |
4535 | with custom pull/push functions we need to check if some | |
4536 | data is available in the buffers manually. */ | |
261b6fd4 LMI |
4537 | if (nfds == 0) |
4538 | { | |
4539 | if (! wait_proc) | |
4540 | { | |
4541 | /* We're not waiting on a specific process, so loop | |
16c1ad08 LMI |
4542 | through all the channels and check for data. |
4543 | This is a workaround needed for some versions of | |
4544 | the gnutls library -- 2.12.14 has been confirmed | |
4545 | to need it. See | |
4546 | http://comments.gmane.org/gmane.emacs.devel/145074 */ | |
261b6fd4 | 4547 | for (channel = 0; channel < MAXDESC; ++channel) |
5b76caa4 PE |
4548 | if (! NILP (chan_process[channel])) |
4549 | { | |
4550 | struct Lisp_Process *p = | |
4551 | XPROCESS (chan_process[channel]); | |
4552 | if (p && p->gnutls_p && p->infd | |
4553 | && ((emacs_gnutls_record_check_pending | |
4554 | (p->gnutls_state)) | |
4555 | > 0)) | |
4556 | { | |
4557 | nfds++; | |
4558 | FD_SET (p->infd, &Available); | |
4559 | } | |
4560 | } | |
261b6fd4 LMI |
4561 | } |
4562 | else | |
4563 | { | |
4564 | /* Check this specific channel. */ | |
5b76caa4 | 4565 | if (wait_proc->gnutls_p /* Check for valid process. */ |
261b6fd4 | 4566 | /* Do we have pending data? */ |
5b76caa4 PE |
4567 | && ((emacs_gnutls_record_check_pending |
4568 | (wait_proc->gnutls_state)) | |
4569 | > 0)) | |
261b6fd4 LMI |
4570 | { |
4571 | nfds = 1; | |
4572 | /* Set to Available. */ | |
4573 | FD_SET (wait_proc->infd, &Available); | |
4574 | } | |
4575 | } | |
4576 | } | |
e061a11b | 4577 | #endif |
dd2a17ab | 4578 | } |
6720a7fb | 4579 | |
d0d6b7c5 JB |
4580 | xerrno = errno; |
4581 | ||
4582 | /* Make C-g and alarm signals set flags again */ | |
4583 | clear_waiting_for_input (); | |
4584 | ||
4585 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 4586 | do_pending_window_change (0); |
d0d6b7c5 | 4587 | |
209c6a58 CY |
4588 | if ((time_limit || nsecs) && nfds == 0 && ! timeout_reduced_for_timers) |
4589 | /* We waited the full specified time, so return now. */ | |
4590 | break; | |
d0d6b7c5 JB |
4591 | if (nfds < 0) |
4592 | { | |
4593 | if (xerrno == EINTR) | |
dd2a17ab | 4594 | no_avail = 1; |
d0d6b7c5 | 4595 | else if (xerrno == EBADF) |
7e649856 | 4596 | emacs_abort (); |
d0d6b7c5 | 4597 | else |
4e604a5d | 4598 | report_file_errno ("Failed select", Qnil, xerrno); |
d0d6b7c5 | 4599 | } |
dd2a17ab KS |
4600 | |
4601 | if (no_avail) | |
4602 | { | |
4603 | FD_ZERO (&Available); | |
3fad2ad2 | 4604 | check_write = 0; |
dd2a17ab KS |
4605 | } |
4606 | ||
d0d6b7c5 JB |
4607 | /* Check for keyboard input */ |
4608 | /* If there is any, return immediately | |
4609 | to give it higher priority than subprocesses */ | |
4610 | ||
b89a415a | 4611 | if (read_kbd != 0) |
6ed6233b | 4612 | { |
9fa1de30 | 4613 | unsigned old_timers_run = timers_run; |
c88164fe | 4614 | struct buffer *old_buffer = current_buffer; |
c0323133 | 4615 | Lisp_Object old_window = selected_window; |
0bce5d9e | 4616 | bool leave = 0; |
177c0ea7 | 4617 | |
5d6c2aa3 | 4618 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 GM |
4619 | { |
4620 | swallow_events (do_display); | |
4621 | if (detect_input_pending_run_timers (do_display)) | |
4622 | leave = 1; | |
4623 | } | |
6ed6233b | 4624 | |
a2fab450 GM |
4625 | /* If a timer has run, this might have changed buffers |
4626 | an alike. Make read_key_sequence aware of that. */ | |
4627 | if (timers_run != old_timers_run | |
c88164fe | 4628 | && waiting_for_user_input_p == -1 |
c0323133 GM |
4629 | && (old_buffer != current_buffer |
4630 | || !EQ (old_window, selected_window))) | |
a2fab450 GM |
4631 | record_asynch_buffer_change (); |
4632 | ||
4633 | if (leave) | |
4634 | break; | |
177c0ea7 JB |
4635 | } |
4636 | ||
69645afc | 4637 | /* If there is unread keyboard input, also return. */ |
b89a415a | 4638 | if (read_kbd != 0 |
69645afc RS |
4639 | && requeued_events_pending_p ()) |
4640 | break; | |
4641 | ||
77e1b3d4 RS |
4642 | /* If we are not checking for keyboard input now, |
4643 | do process events (but don't run any timers). | |
4644 | This is so that X events will be processed. | |
0c9960e9 | 4645 | Otherwise they may have to wait until polling takes place. |
77e1b3d4 RS |
4646 | That would causes delays in pasting selections, for example. |
4647 | ||
4648 | (We used to do this only if wait_for_cell.) */ | |
b89a415a | 4649 | if (read_kbd == 0 && detect_input_pending ()) |
f854a00b RS |
4650 | { |
4651 | swallow_events (do_display); | |
0c9960e9 | 4652 | #if 0 /* Exiting when read_kbd doesn't request that seems wrong, though. */ |
f854a00b RS |
4653 | if (detect_input_pending ()) |
4654 | break; | |
5d5beb62 | 4655 | #endif |
0c9960e9 | 4656 | } |
f854a00b | 4657 | |
84aa3ace | 4658 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 4659 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
84aa3ace RS |
4660 | break; |
4661 | ||
4a4bbad2 | 4662 | #ifdef USABLE_SIGIO |
5d5beb62 | 4663 | /* If we think we have keyboard input waiting, but didn't get SIGIO, |
d0d6b7c5 JB |
4664 | go read it. This can happen with X on BSD after logging out. |
4665 | In that case, there really is no input and no SIGIO, | |
4666 | but select says there is input. */ | |
4667 | ||
b89a415a | 4668 | if (read_kbd && interrupt_input |
2601f59e | 4669 | && keyboard_bit_set (&Available) && ! noninteractive) |
4d7e6e51 | 4670 | handle_input_available_signal (SIGIO); |
4746118a | 4671 | #endif |
d0d6b7c5 | 4672 | |
d0d6b7c5 JB |
4673 | if (! wait_proc) |
4674 | got_some_input |= nfds > 0; | |
4675 | ||
32676c08 JB |
4676 | /* If checking input just got us a size-change event from X, |
4677 | obey it now if we should. */ | |
b89a415a | 4678 | if (read_kbd || ! NILP (wait_for_cell)) |
2b653806 | 4679 | do_pending_window_change (0); |
32676c08 | 4680 | |
a9f2c884 | 4681 | /* Check for data from a process. */ |
dd2a17ab KS |
4682 | if (no_avail || nfds == 0) |
4683 | continue; | |
4684 | ||
3fad2ad2 J |
4685 | for (channel = 0; channel <= max_input_desc; ++channel) |
4686 | { | |
4687 | struct fd_callback_data *d = &fd_callback_info[channel]; | |
de1339b0 PE |
4688 | if (d->func |
4689 | && ((d->condition & FOR_READ | |
4690 | && FD_ISSET (channel, &Available)) | |
4691 | || (d->condition & FOR_WRITE | |
4692 | && FD_ISSET (channel, &write_mask)))) | |
4693 | d->func (channel, d->data); | |
4694 | } | |
3fad2ad2 | 4695 | |
a69281ff | 4696 | for (channel = 0; channel <= max_process_desc; channel++) |
d0d6b7c5 | 4697 | { |
a69281ff | 4698 | if (FD_ISSET (channel, &Available) |
3fad2ad2 J |
4699 | && FD_ISSET (channel, &non_keyboard_wait_mask) |
4700 | && !FD_ISSET (channel, &non_process_wait_mask)) | |
d0d6b7c5 JB |
4701 | { |
4702 | int nread; | |
4703 | ||
4704 | /* If waiting for this channel, arrange to return as | |
4705 | soon as no more input to be processed. No more | |
4706 | waiting. */ | |
4707 | if (wait_channel == channel) | |
4708 | { | |
a9f2c884 | 4709 | wait_channel = -1; |
d35af63c | 4710 | nsecs = -1; |
d0d6b7c5 JB |
4711 | got_some_input = 1; |
4712 | } | |
4713 | proc = chan_process[channel]; | |
4714 | if (NILP (proc)) | |
4715 | continue; | |
4716 | ||
e690ca94 | 4717 | /* If this is a server stream socket, accept connection. */ |
4d2b044c | 4718 | if (EQ (XPROCESS (proc)->status, Qlisten)) |
e690ca94 KS |
4719 | { |
4720 | server_accept_connection (proc, channel); | |
4721 | continue; | |
4722 | } | |
4723 | ||
d0d6b7c5 JB |
4724 | /* Read data from the process, starting with our |
4725 | buffered-ahead character if we have one. */ | |
4726 | ||
4727 | nread = read_process_output (proc, channel); | |
4728 | if (nread > 0) | |
4729 | { | |
4730 | /* Since read_process_output can run a filter, | |
4731 | which can call accept-process-output, | |
4732 | don't try to read from any other processes | |
4733 | before doing the select again. */ | |
4734 | FD_ZERO (&Available); | |
4735 | ||
4736 | if (do_display) | |
3007ebfb | 4737 | redisplay_preserve_echo_area (12); |
d0d6b7c5 JB |
4738 | } |
4739 | #ifdef EWOULDBLOCK | |
4740 | else if (nread == -1 && errno == EWOULDBLOCK) | |
4741 | ; | |
0b75e9a4 | 4742 | #endif |
d0d6b7c5 JB |
4743 | else if (nread == -1 && errno == EAGAIN) |
4744 | ; | |
49cdacda PE |
4745 | #ifdef WINDOWSNT |
4746 | /* FIXME: Is this special case still needed? */ | |
d0d6b7c5 JB |
4747 | /* Note that we cannot distinguish between no input |
4748 | available now and a closed pipe. | |
4749 | With luck, a closed pipe will be accompanied by | |
4750 | subprocess termination and SIGCHLD. */ | |
d888760c | 4751 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 | 4752 | ; |
49cdacda | 4753 | #endif |
d0d6b7c5 JB |
4754 | #ifdef HAVE_PTYS |
4755 | /* On some OSs with ptys, when the process on one end of | |
4756 | a pty exits, the other end gets an error reading with | |
4757 | errno = EIO instead of getting an EOF (0 bytes read). | |
4758 | Therefore, if we get an error reading and errno = | |
4759 | EIO, just continue, because the child process has | |
4760 | exited and should clean itself up soon (e.g. when we | |
207a7ef0 | 4761 | get a SIGCHLD). */ |
d0d6b7c5 | 4762 | else if (nread == -1 && errno == EIO) |
4740825c | 4763 | { |
f30d612a CY |
4764 | struct Lisp_Process *p = XPROCESS (proc); |
4765 | ||
4766 | /* Clear the descriptor now, so we only raise the | |
4767 | signal once. */ | |
4768 | FD_CLR (channel, &input_wait_mask); | |
4769 | FD_CLR (channel, &non_keyboard_wait_mask); | |
4770 | ||
4771 | if (p->pid == -2) | |
4772 | { | |
20ef56db PE |
4773 | /* If the EIO occurs on a pty, the SIGCHLD handler's |
4774 | waitpid call will not find the process object to | |
f30d612a CY |
4775 | delete. Do it here. */ |
4776 | p->tick = ++process_tick; | |
6a09a33b | 4777 | pset_status (p, Qfailed); |
f30d612a | 4778 | } |
4740825c KS |
4779 | } |
4780 | #endif /* HAVE_PTYS */ | |
5063c0e1 TN |
4781 | /* If we can detect process termination, don't consider the |
4782 | process gone just because its pipe is closed. */ | |
d888760c | 4783 | else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)) |
d0d6b7c5 | 4784 | ; |
d0d6b7c5 JB |
4785 | else |
4786 | { | |
4787 | /* Preserve status of processes already terminated. */ | |
60f0fb11 | 4788 | XPROCESS (proc)->tick = ++process_tick; |
d0d6b7c5 | 4789 | deactivate_process (proc); |
6bfd98e7 | 4790 | if (XPROCESS (proc)->raw_status_new) |
d0d6b7c5 | 4791 | update_status (XPROCESS (proc)); |
4d2b044c | 4792 | if (EQ (XPROCESS (proc)->status, Qrun)) |
6a09a33b PE |
4793 | pset_status (XPROCESS (proc), |
4794 | list2 (Qexit, make_number (256))); | |
d0d6b7c5 JB |
4795 | } |
4796 | } | |
177c0ea7 | 4797 | #ifdef NON_BLOCKING_CONNECT |
3fad2ad2 | 4798 | if (FD_ISSET (channel, &Writeok) |
1566f511 | 4799 | && FD_ISSET (channel, &connect_wait_mask)) |
dd2a17ab KS |
4800 | { |
4801 | struct Lisp_Process *p; | |
dd2a17ab KS |
4802 | |
4803 | FD_CLR (channel, &connect_wait_mask); | |
d8a4b27a | 4804 | FD_CLR (channel, &write_mask); |
dd2a17ab | 4805 | if (--num_pending_connects < 0) |
1088b922 | 4806 | emacs_abort (); |
dd2a17ab KS |
4807 | |
4808 | proc = chan_process[channel]; | |
4809 | if (NILP (proc)) | |
4810 | continue; | |
4811 | ||
4812 | p = XPROCESS (proc); | |
4813 | ||
4814 | #ifdef GNU_LINUX | |
4815 | /* getsockopt(,,SO_ERROR,,) is said to hang on some systems. | |
63136da6 | 4816 | So only use it on systems where it is known to work. */ |
dd2a17ab | 4817 | { |
401bf9b4 | 4818 | socklen_t xlen = sizeof (xerrno); |
ed3751c8 | 4819 | if (getsockopt (channel, SOL_SOCKET, SO_ERROR, &xerrno, &xlen)) |
dd2a17ab KS |
4820 | xerrno = errno; |
4821 | } | |
4822 | #else | |
44c887be PJ |
4823 | { |
4824 | struct sockaddr pname; | |
ed3751c8 | 4825 | int pnamelen = sizeof (pname); |
44c887be PJ |
4826 | |
4827 | /* If connection failed, getpeername will fail. */ | |
4828 | xerrno = 0; | |
ed3751c8 | 4829 | if (getpeername (channel, &pname, &pnamelen) < 0) |
44c887be PJ |
4830 | { |
4831 | /* Obtain connect failure code through error slippage. */ | |
4832 | char dummy; | |
dd2a17ab | 4833 | xerrno = errno; |
ed3751c8 | 4834 | if (errno == ENOTCONN && read (channel, &dummy, 1) < 0) |
44c887be PJ |
4835 | xerrno = errno; |
4836 | } | |
4837 | } | |
dd2a17ab KS |
4838 | #endif |
4839 | if (xerrno) | |
4840 | { | |
60f0fb11 | 4841 | p->tick = ++process_tick; |
6a09a33b | 4842 | pset_status (p, list2 (Qfailed, make_number (xerrno))); |
dd2a17ab KS |
4843 | deactivate_process (proc); |
4844 | } | |
4845 | else | |
4846 | { | |
6a09a33b | 4847 | pset_status (p, Qrun); |
dd2a17ab KS |
4848 | /* Execute the sentinel here. If we had relied on |
4849 | status_notify to do it later, it will read input | |
4850 | from the process before calling the sentinel. */ | |
4851 | exec_sentinel (proc, build_string ("open\n")); | |
4d2b044c | 4852 | if (!EQ (p->filter, Qt) && !EQ (p->command, Qt)) |
dd2a17ab | 4853 | { |
60f0fb11 SM |
4854 | FD_SET (p->infd, &input_wait_mask); |
4855 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
dd2a17ab KS |
4856 | } |
4857 | } | |
4858 | } | |
4859 | #endif /* NON_BLOCKING_CONNECT */ | |
1aa8d505 SM |
4860 | } /* End for each file descriptor. */ |
4861 | } /* End while exit conditions not met. */ | |
d0d6b7c5 | 4862 | |
2beb96f9 | 4863 | unbind_to (count, Qnil); |
d430ee71 | 4864 | |
ffd56f97 JB |
4865 | /* If calling from keyboard input, do not quit |
4866 | since we want to return C-g as an input character. | |
4867 | Otherwise, do pending quit if requested. */ | |
b89a415a | 4868 | if (read_kbd >= 0) |
ffd56f97 JB |
4869 | { |
4870 | /* Prevent input_pending from remaining set if we quit. */ | |
4871 | clear_input_pending (); | |
4872 | QUIT; | |
4873 | } | |
efa2a55c | 4874 | |
d0d6b7c5 JB |
4875 | return got_some_input; |
4876 | } | |
4877 | \f | |
3b9a3dfa RS |
4878 | /* Given a list (FUNCTION ARGS...), apply FUNCTION to the ARGS. */ |
4879 | ||
4880 | static Lisp_Object | |
d3da34e0 | 4881 | read_process_output_call (Lisp_Object fun_and_args) |
3b9a3dfa | 4882 | { |
70949dac | 4883 | return apply1 (XCAR (fun_and_args), XCDR (fun_and_args)); |
3b9a3dfa RS |
4884 | } |
4885 | ||
4886 | static Lisp_Object | |
b93aacde | 4887 | read_process_output_error_handler (Lisp_Object error_val) |
3b9a3dfa | 4888 | { |
b93aacde | 4889 | cmd_error_internal (error_val, "error in process filter: "); |
3b9a3dfa RS |
4890 | Vinhibit_quit = Qt; |
4891 | update_echo_area (); | |
833ba342 | 4892 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 4893 | return Qt; |
3b9a3dfa RS |
4894 | } |
4895 | ||
1aa8d505 SM |
4896 | static void |
4897 | read_and_dispose_of_process_output (struct Lisp_Process *p, char *chars, | |
4898 | ssize_t nbytes, | |
4899 | struct coding_system *coding); | |
4900 | ||
d0d6b7c5 JB |
4901 | /* Read pending output from the process channel, |
4902 | starting with our buffered-ahead character if we have one. | |
0fa1789e | 4903 | Yield number of decoded characters read. |
d0d6b7c5 | 4904 | |
116c423c | 4905 | This function reads at most 4096 characters. |
d0d6b7c5 | 4906 | If you want to read all available subprocess output, |
0fa1789e KH |
4907 | you must call it repeatedly until it returns zero. |
4908 | ||
4909 | The characters read are decoded according to PROC's coding-system | |
4910 | for decoding. */ | |
d0d6b7c5 | 4911 | |
ff6daed3 | 4912 | static int |
d3da34e0 | 4913 | read_process_output (Lisp_Object proc, register int channel) |
d0d6b7c5 | 4914 | { |
368f4090 | 4915 | register ssize_t nbytes; |
d0d6b7c5 | 4916 | char *chars; |
d0d6b7c5 | 4917 | register struct Lisp_Process *p = XPROCESS (proc); |
c7580538 | 4918 | struct coding_system *coding = proc_decode_coding_system[channel]; |
60f0fb11 | 4919 | int carryover = p->decoding_carryover; |
116c423c | 4920 | int readmax = 4096; |
d311d28c | 4921 | ptrdiff_t count = SPECPDL_INDEX (); |
3a4fa2f2 | 4922 | Lisp_Object odeactivate; |
d0d6b7c5 | 4923 | |
38182d90 | 4924 | chars = alloca (carryover + readmax); |
e7fbaa65 KH |
4925 | if (carryover) |
4926 | /* See the comment above. */ | |
4d2b044c | 4927 | memcpy (chars, SDATA (p->decoding_buf), carryover); |
0fa1789e | 4928 | |
e690ca94 KS |
4929 | #ifdef DATAGRAM_SOCKETS |
4930 | /* We have a working select, so proc_buffered_char is always -1. */ | |
4931 | if (DATAGRAM_CHAN_P (channel)) | |
4932 | { | |
401bf9b4 | 4933 | socklen_t len = datagram_address[channel].len; |
39b1da20 | 4934 | nbytes = recvfrom (channel, chars + carryover, readmax, |
e690ca94 KS |
4935 | 0, datagram_address[channel].sa, &len); |
4936 | } | |
4937 | else | |
4938 | #endif | |
6b61353c | 4939 | { |
908589fd | 4940 | bool buffered = proc_buffered_char[channel] >= 0; |
82eaa333 PE |
4941 | if (buffered) |
4942 | { | |
4943 | chars[carryover] = proc_buffered_char[channel]; | |
4944 | proc_buffered_char[channel] = -1; | |
4945 | } | |
8af55556 | 4946 | #ifdef HAVE_GNUTLS |
959ad23f AS |
4947 | if (p->gnutls_p) |
4948 | nbytes = emacs_gnutls_read (p, chars + carryover + buffered, | |
82eaa333 | 4949 | readmax - buffered); |
8af55556 TZ |
4950 | else |
4951 | #endif | |
82eaa333 PE |
4952 | nbytes = emacs_read (channel, chars + carryover + buffered, |
4953 | readmax - buffered); | |
6b61353c | 4954 | #ifdef ADAPTIVE_READ_BUFFERING |
60f0fb11 | 4955 | if (nbytes > 0 && p->adaptive_read_buffering) |
6b61353c | 4956 | { |
60f0fb11 | 4957 | int delay = p->read_output_delay; |
6b61353c KH |
4958 | if (nbytes < 256) |
4959 | { | |
4960 | if (delay < READ_OUTPUT_DELAY_MAX_MAX) | |
4961 | { | |
4962 | if (delay == 0) | |
4963 | process_output_delay_count++; | |
4964 | delay += READ_OUTPUT_DELAY_INCREMENT * 2; | |
4965 | } | |
4966 | } | |
82eaa333 | 4967 | else if (delay > 0 && nbytes == readmax - buffered) |
6b61353c KH |
4968 | { |
4969 | delay -= READ_OUTPUT_DELAY_INCREMENT; | |
4970 | if (delay == 0) | |
4971 | process_output_delay_count--; | |
4972 | } | |
60f0fb11 | 4973 | p->read_output_delay = delay; |
6b61353c KH |
4974 | if (delay) |
4975 | { | |
60f0fb11 | 4976 | p->read_output_skip = 1; |
6b61353c KH |
4977 | process_output_skip = 1; |
4978 | } | |
4979 | } | |
4980 | #endif | |
fe07cdfa PE |
4981 | nbytes += buffered; |
4982 | nbytes += buffered && nbytes <= 0; | |
d0d6b7c5 | 4983 | } |
d0d6b7c5 | 4984 | |
60f0fb11 | 4985 | p->decoding_carryover = 0; |
ca65341e | 4986 | |
ed7a4b2d | 4987 | /* At this point, NBYTES holds number of bytes just received |
0fa1789e | 4988 | (including the one in proc_buffered_char[channel]). */ |
de7fbd09 KH |
4989 | if (nbytes <= 0) |
4990 | { | |
4991 | if (nbytes < 0 || coding->mode & CODING_MODE_LAST_BLOCK) | |
4992 | return nbytes; | |
4993 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
4994 | } | |
d0d6b7c5 | 4995 | |
1d2fc612 | 4996 | /* Now set NBYTES how many bytes we must decode. */ |
e7fbaa65 | 4997 | nbytes += carryover; |
0fa1789e | 4998 | |
3a4fa2f2 SM |
4999 | odeactivate = Vdeactivate_mark; |
5000 | /* There's no good reason to let process filters change the current | |
5001 | buffer, and many callers of accept-process-output, sit-for, and | |
5002 | friends don't expect current-buffer to be changed from under them. */ | |
66322887 | 5003 | record_unwind_current_buffer (); |
3a4fa2f2 | 5004 | |
1aa8d505 SM |
5005 | read_and_dispose_of_process_output (p, chars, nbytes, coding); |
5006 | ||
5007 | /* Handling the process output should not deactivate the mark. */ | |
5008 | Vdeactivate_mark = odeactivate; | |
5009 | ||
5010 | unbind_to (count, Qnil); | |
5011 | return nbytes; | |
5012 | } | |
5013 | ||
5014 | static void | |
5015 | read_and_dispose_of_process_output (struct Lisp_Process *p, char *chars, | |
5016 | ssize_t nbytes, | |
5017 | struct coding_system *coding) | |
5018 | { | |
5019 | Lisp_Object outstream = p->filter; | |
5020 | Lisp_Object text; | |
5021 | bool outer_running_asynch_code = running_asynch_code; | |
5022 | int waiting = waiting_for_user_input_p; | |
30c78175 | 5023 | |
1aa8d505 SM |
5024 | /* No need to gcpro these, because all we do with them later |
5025 | is test them for EQness, and none of them should be a string. */ | |
aba7731a | 5026 | #if 0 |
1aa8d505 SM |
5027 | Lisp_Object obuffer, okeymap; |
5028 | XSETBUFFER (obuffer, current_buffer); | |
5029 | okeymap = BVAR (current_buffer, keymap); | |
aba7731a | 5030 | #endif |
30c78175 | 5031 | |
1aa8d505 SM |
5032 | /* We inhibit quit here instead of just catching it so that |
5033 | hitting ^G when a filter happens to be running won't screw | |
5034 | it up. */ | |
5035 | specbind (Qinhibit_quit, Qt); | |
5036 | specbind (Qlast_nonmenu_event, Qt); | |
4da2f5be | 5037 | |
1aa8d505 SM |
5038 | /* In case we get recursively called, |
5039 | and we already saved the match data nonrecursively, | |
5040 | save the same match data in safely recursive fashion. */ | |
5041 | if (outer_running_asynch_code) | |
5042 | { | |
5043 | Lisp_Object tem; | |
5044 | /* Don't clobber the CURRENT match data, either! */ | |
5045 | tem = Fmatch_data (Qnil, Qnil, Qnil); | |
5046 | restore_search_regs (); | |
5047 | record_unwind_save_match_data (); | |
5048 | Fset_match_data (tem, Qt); | |
5049 | } | |
4da2f5be | 5050 | |
1aa8d505 SM |
5051 | /* For speed, if a search happens within this code, |
5052 | save the match data in a special nonrecursive fashion. */ | |
5053 | running_asynch_code = 1; | |
ed7a4b2d | 5054 | |
1aa8d505 SM |
5055 | decode_coding_c_string (coding, (unsigned char *) chars, nbytes, Qt); |
5056 | text = coding->dst_object; | |
5057 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); | |
5058 | /* A new coding system might be found. */ | |
5059 | if (!EQ (p->decode_coding_system, Vlast_coding_system_used)) | |
5060 | { | |
5061 | pset_decode_coding_system (p, Vlast_coding_system_used); | |
ed7a4b2d | 5062 | |
1aa8d505 SM |
5063 | /* Don't call setup_coding_system for |
5064 | proc_decode_coding_system[channel] here. It is done in | |
5065 | detect_coding called via decode_coding above. */ | |
ed7a4b2d | 5066 | |
1aa8d505 SM |
5067 | /* If a coding system for encoding is not yet decided, we set |
5068 | it as the same as coding-system for decoding. | |
51c6067d | 5069 | |
1aa8d505 SM |
5070 | But, before doing that we must check if |
5071 | proc_encode_coding_system[p->outfd] surely points to a | |
5072 | valid memory because p->outfd will be changed once EOF is | |
5073 | sent to the process. */ | |
5074 | if (NILP (p->encode_coding_system) | |
5075 | && proc_encode_coding_system[p->outfd]) | |
dd8c7a53 | 5076 | { |
1aa8d505 SM |
5077 | pset_encode_coding_system |
5078 | (p, coding_inherit_eol_type (Vlast_coding_system_used, Qnil)); | |
5079 | setup_coding_system (p->encode_coding_system, | |
5080 | proc_encode_coding_system[p->outfd]); | |
dd8c7a53 | 5081 | } |
1aa8d505 | 5082 | } |
d0d6b7c5 | 5083 | |
1aa8d505 SM |
5084 | if (coding->carryover_bytes > 0) |
5085 | { | |
5086 | if (SCHARS (p->decoding_buf) < coding->carryover_bytes) | |
5087 | pset_decoding_buf (p, make_uninit_string (coding->carryover_bytes)); | |
5088 | memcpy (SDATA (p->decoding_buf), coding->carryover, | |
5089 | coding->carryover_bytes); | |
5090 | p->decoding_carryover = coding->carryover_bytes; | |
5091 | } | |
5092 | if (SBYTES (text) > 0) | |
5093 | /* FIXME: It's wrong to wrap or not based on debug-on-error, and | |
5094 | sometimes it's simply wrong to wrap (e.g. when called from | |
5095 | accept-process-output). */ | |
5096 | internal_condition_case_1 (read_process_output_call, | |
6c6f1994 | 5097 | list3 (outstream, make_lisp_proc (p), text), |
1aa8d505 SM |
5098 | !NILP (Vdebug_on_error) ? Qnil : Qerror, |
5099 | read_process_output_error_handler); | |
5100 | ||
5101 | /* If we saved the match data nonrecursively, restore it now. */ | |
5102 | restore_search_regs (); | |
5103 | running_asynch_code = outer_running_asynch_code; | |
5104 | ||
5105 | /* Restore waiting_for_user_input_p as it was | |
5106 | when we were called, in case the filter clobbered it. */ | |
5107 | waiting_for_user_input_p = waiting; | |
bbce7d72 | 5108 | |
7973cfa8 RS |
5109 | #if 0 /* Call record_asynch_buffer_change unconditionally, |
5110 | because we might have changed minor modes or other things | |
5111 | that affect key bindings. */ | |
1aa8d505 SM |
5112 | if (! EQ (Fcurrent_buffer (), obuffer) |
5113 | || ! EQ (current_buffer->keymap, okeymap)) | |
5114 | #endif | |
5115 | /* But do it only if the caller is actually going to read events. | |
5116 | Otherwise there's no need to make him wake up, and it could | |
5117 | cause trouble (for example it would make sit_for return). */ | |
5118 | if (waiting_for_user_input_p == -1) | |
5119 | record_asynch_buffer_change (); | |
5120 | } | |
5121 | ||
5122 | DEFUN ("internal-default-process-filter", Finternal_default_process_filter, | |
5123 | Sinternal_default_process_filter, 2, 2, 0, | |
5124 | doc: /* Function used as default process filter. */) | |
5125 | (Lisp_Object proc, Lisp_Object text) | |
5126 | { | |
5127 | struct Lisp_Process *p; | |
5128 | ptrdiff_t opoint; | |
d0d6b7c5 | 5129 | |
1aa8d505 SM |
5130 | CHECK_PROCESS (proc); |
5131 | p = XPROCESS (proc); | |
5132 | CHECK_STRING (text); | |
5133 | ||
5134 | if (!NILP (p->buffer) && BUFFER_LIVE_P (XBUFFER (p->buffer))) | |
d0d6b7c5 | 5135 | { |
b0310da4 | 5136 | Lisp_Object old_read_only; |
d311d28c PE |
5137 | ptrdiff_t old_begv, old_zv; |
5138 | ptrdiff_t old_begv_byte, old_zv_byte; | |
5139 | ptrdiff_t before, before_byte; | |
5140 | ptrdiff_t opoint_byte; | |
926b7e5e | 5141 | struct buffer *b; |
30c78175 | 5142 | |
4d2b044c | 5143 | Fset_buffer (p->buffer); |
6ec8bbd2 | 5144 | opoint = PT; |
d8a2934e | 5145 | opoint_byte = PT_BYTE; |
4b4deea2 | 5146 | old_read_only = BVAR (current_buffer, read_only); |
12ca5cdf RS |
5147 | old_begv = BEGV; |
5148 | old_zv = ZV; | |
d8a2934e RS |
5149 | old_begv_byte = BEGV_BYTE; |
5150 | old_zv_byte = ZV_BYTE; | |
b0310da4 | 5151 | |
39eb03f1 | 5152 | bset_read_only (current_buffer, Qnil); |
d0d6b7c5 JB |
5153 | |
5154 | /* Insert new output into buffer | |
5155 | at the current end-of-output marker, | |
5156 | thus preserving logical ordering of input and output. */ | |
4d2b044c | 5157 | if (XMARKER (p->mark)->buffer) |
3193acd2 | 5158 | SET_PT_BOTH (clip_to_bounds (BEGV, |
4d2b044c | 5159 | marker_position (p->mark), ZV), |
3193acd2 | 5160 | clip_to_bounds (BEGV_BYTE, |
4d2b044c | 5161 | marker_byte_position (p->mark), |
d8a2934e | 5162 | ZV_BYTE)); |
d0d6b7c5 | 5163 | else |
d8a2934e | 5164 | SET_PT_BOTH (ZV, ZV_BYTE); |
12ca5cdf | 5165 | before = PT; |
d8a2934e | 5166 | before_byte = PT_BYTE; |
b0310da4 JB |
5167 | |
5168 | /* If the output marker is outside of the visible region, save | |
5169 | the restriction and widen. */ | |
6ec8bbd2 | 5170 | if (! (BEGV <= PT && PT <= ZV)) |
b0310da4 JB |
5171 | Fwiden (); |
5172 | ||
d69864bf | 5173 | /* Adjust the multibyteness of TEXT to that of the buffer. */ |
4b4deea2 | 5174 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) |
d69864bf KH |
5175 | != ! STRING_MULTIBYTE (text)) |
5176 | text = (STRING_MULTIBYTE (text) | |
57bb5c37 | 5177 | ? Fstring_as_unibyte (text) |
03f04413 | 5178 | : Fstring_to_multibyte (text)); |
57bb5c37 KH |
5179 | /* Insert before markers in case we are inserting where |
5180 | the buffer's mark is, and the user's next command is Meta-y. */ | |
e430e5ba KH |
5181 | insert_from_string_before_markers (text, 0, 0, |
5182 | SCHARS (text), SBYTES (text), 0); | |
0d023da1 | 5183 | |
926b7e5e GM |
5184 | /* Make sure the process marker's position is valid when the |
5185 | process buffer is changed in the signal_after_change above. | |
5186 | W3 is known to do that. */ | |
4d2b044c DA |
5187 | if (BUFFERP (p->buffer) |
5188 | && (b = XBUFFER (p->buffer), b != current_buffer)) | |
5189 | set_marker_both (p->mark, p->buffer, BUF_PT (b), BUF_PT_BYTE (b)); | |
926b7e5e | 5190 | else |
4d2b044c | 5191 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); |
b0310da4 | 5192 | |
d0d6b7c5 JB |
5193 | update_mode_lines++; |
5194 | ||
12ca5cdf RS |
5195 | /* Make sure opoint and the old restrictions |
5196 | float ahead of any new text just as point would. */ | |
5197 | if (opoint >= before) | |
d8a2934e RS |
5198 | { |
5199 | opoint += PT - before; | |
5200 | opoint_byte += PT_BYTE - before_byte; | |
5201 | } | |
12ca5cdf | 5202 | if (old_begv > before) |
d8a2934e RS |
5203 | { |
5204 | old_begv += PT - before; | |
5205 | old_begv_byte += PT_BYTE - before_byte; | |
5206 | } | |
12ca5cdf | 5207 | if (old_zv >= before) |
d8a2934e RS |
5208 | { |
5209 | old_zv += PT - before; | |
5210 | old_zv_byte += PT_BYTE - before_byte; | |
5211 | } | |
12ca5cdf | 5212 | |
b0310da4 | 5213 | /* If the restriction isn't what it should be, set it. */ |
12ca5cdf RS |
5214 | if (old_begv != BEGV || old_zv != ZV) |
5215 | Fnarrow_to_region (make_number (old_begv), make_number (old_zv)); | |
b0310da4 | 5216 | |
39eb03f1 | 5217 | bset_read_only (current_buffer, old_read_only); |
d8a2934e | 5218 | SET_PT_BOTH (opoint, opoint_byte); |
d0d6b7c5 | 5219 | } |
1aa8d505 | 5220 | return Qnil; |
d0d6b7c5 | 5221 | } |
d0d6b7c5 | 5222 | \f |
1aa8d505 | 5223 | /* Sending data to subprocess. */ |
d0d6b7c5 | 5224 | |
20ca2e94 TN |
5225 | /* In send_process, when a write fails temporarily, |
5226 | wait_reading_process_output is called. It may execute user code, | |
5227 | e.g. timers, that attempts to write new data to the same process. | |
5228 | We must ensure that data is sent in the right order, and not | |
5229 | interspersed half-completed with other writes (Bug#10815). This is | |
5230 | handled by the write_queue element of struct process. It is a list | |
5231 | with each entry having the form | |
5232 | ||
5233 | (string . (offset . length)) | |
5234 | ||
5235 | where STRING is a lisp string, OFFSET is the offset into the | |
5236 | string's byte sequence from which we should begin to send, and | |
5237 | LENGTH is the number of bytes left to send. */ | |
5238 | ||
5239 | /* Create a new entry in write_queue. | |
5240 | INPUT_OBJ should be a buffer, string Qt, or Qnil. | |
5241 | BUF is a pointer to the string sequence of the input_obj or a C | |
5242 | string in case of Qt or Qnil. */ | |
5243 | ||
5244 | static void | |
5245 | write_queue_push (struct Lisp_Process *p, Lisp_Object input_obj, | |
0bce5d9e | 5246 | const char *buf, ptrdiff_t len, bool front) |
20ca2e94 | 5247 | { |
7ea2b339 | 5248 | ptrdiff_t offset; |
20ca2e94 TN |
5249 | Lisp_Object entry, obj; |
5250 | ||
5251 | if (STRINGP (input_obj)) | |
5252 | { | |
5253 | offset = buf - SSDATA (input_obj); | |
5254 | obj = input_obj; | |
5255 | } | |
5256 | else | |
5257 | { | |
5258 | offset = 0; | |
5259 | obj = make_unibyte_string (buf, len); | |
5260 | } | |
5261 | ||
5262 | entry = Fcons (obj, Fcons (make_number (offset), make_number (len))); | |
5263 | ||
5264 | if (front) | |
6a09a33b | 5265 | pset_write_queue (p, Fcons (entry, p->write_queue)); |
20ca2e94 | 5266 | else |
6c6f1994 | 5267 | pset_write_queue (p, nconc2 (p->write_queue, list1 (entry))); |
20ca2e94 TN |
5268 | } |
5269 | ||
5270 | /* Remove the first element in the write_queue of process P, put its | |
0bce5d9e PE |
5271 | contents in OBJ, BUF and LEN, and return true. If the |
5272 | write_queue is empty, return false. */ | |
20ca2e94 | 5273 | |
0bce5d9e | 5274 | static bool |
20ca2e94 | 5275 | write_queue_pop (struct Lisp_Process *p, Lisp_Object *obj, |
7ea2b339 | 5276 | const char **buf, ptrdiff_t *len) |
20ca2e94 TN |
5277 | { |
5278 | Lisp_Object entry, offset_length; | |
7ea2b339 | 5279 | ptrdiff_t offset; |
20ca2e94 | 5280 | |
4d2b044c | 5281 | if (NILP (p->write_queue)) |
20ca2e94 TN |
5282 | return 0; |
5283 | ||
4d2b044c | 5284 | entry = XCAR (p->write_queue); |
6a09a33b | 5285 | pset_write_queue (p, XCDR (p->write_queue)); |
20ca2e94 TN |
5286 | |
5287 | *obj = XCAR (entry); | |
5288 | offset_length = XCDR (entry); | |
5289 | ||
5290 | *len = XINT (XCDR (offset_length)); | |
5291 | offset = XINT (XCAR (offset_length)); | |
7ea2b339 | 5292 | *buf = SSDATA (*obj) + offset; |
20ca2e94 TN |
5293 | |
5294 | return 1; | |
5295 | } | |
5296 | ||
4556b700 RS |
5297 | /* Send some data to process PROC. |
5298 | BUF is the beginning of the data; LEN is the number of characters. | |
a92e4183 KH |
5299 | OBJECT is the Lisp object that the data comes from. If OBJECT is |
5300 | nil or t, it means that the data comes from C string. | |
0fa1789e | 5301 | |
a92e4183 KH |
5302 | If OBJECT is not nil, the data is encoded by PROC's coding-system |
5303 | for encoding before it is sent. | |
1fb0098c GM |
5304 | |
5305 | This function can evaluate Lisp code and can garbage collect. */ | |
4556b700 | 5306 | |
ff6daed3 | 5307 | static void |
4d7e6e51 PE |
5308 | send_process (Lisp_Object proc, const char *buf, ptrdiff_t len, |
5309 | Lisp_Object object) | |
d0d6b7c5 | 5310 | { |
6b61353c | 5311 | struct Lisp_Process *p = XPROCESS (proc); |
368f4090 | 5312 | ssize_t rv; |
0fa1789e | 5313 | struct coding_system *coding; |
6044e593 | 5314 | |
6bfd98e7 | 5315 | if (p->raw_status_new) |
6b61353c | 5316 | update_status (p); |
4d2b044c DA |
5317 | if (! EQ (p->status, Qrun)) |
5318 | error ("Process %s not running", SDATA (p->name)); | |
60f0fb11 | 5319 | if (p->outfd < 0) |
4d2b044c | 5320 | error ("Output file descriptor of %s is closed", SDATA (p->name)); |
0fa1789e | 5321 | |
60f0fb11 | 5322 | coding = proc_encode_coding_system[p->outfd]; |
5bbf78c1 | 5323 | Vlast_coding_system_used = CODING_ID_NAME (coding->id); |
486b111b | 5324 | |
ed7a4b2d KH |
5325 | if ((STRINGP (object) && STRING_MULTIBYTE (object)) |
5326 | || (BUFFERP (object) | |
4b4deea2 | 5327 | && !NILP (BVAR (XBUFFER (object), enable_multibyte_characters))) |
a92e4183 | 5328 | || EQ (object, Qt)) |
278bfdd6 | 5329 | { |
6a09a33b PE |
5330 | pset_encode_coding_system |
5331 | (p, complement_process_encoding_system (p->encode_coding_system)); | |
4d2b044c | 5332 | if (!EQ (Vlast_coding_system_used, p->encode_coding_system)) |
fcaf8878 KH |
5333 | { |
5334 | /* The coding system for encoding was changed to raw-text | |
5335 | because we sent a unibyte text previously. Now we are | |
5336 | sending a multibyte text, thus we must encode it by the | |
5337 | original coding system specified for the current process. | |
5338 | ||
da6062e6 PE |
5339 | Another reason we come here is that the coding system |
5340 | was just complemented and a new one was returned by | |
fcaf8878 | 5341 | complement_process_encoding_system. */ |
4d2b044c DA |
5342 | setup_coding_system (p->encode_coding_system, coding); |
5343 | Vlast_coding_system_used = p->encode_coding_system; | |
fcaf8878 | 5344 | } |
e08bbb84 | 5345 | coding->src_multibyte = 1; |
278bfdd6 KH |
5346 | } |
5347 | else | |
5348 | { | |
a0241d01 | 5349 | coding->src_multibyte = 0; |
a92e4183 KH |
5350 | /* For sending a unibyte text, character code conversion should |
5351 | not take place but EOL conversion should. So, setup raw-text | |
5352 | or one of the subsidiary if we have not yet done it. */ | |
5bbf78c1 | 5353 | if (CODING_REQUIRE_ENCODING (coding)) |
a92e4183 KH |
5354 | { |
5355 | if (CODING_REQUIRE_FLUSHING (coding)) | |
5356 | { | |
5357 | /* But, before changing the coding, we must flush out data. */ | |
5358 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
5359 | send_process (proc, "", 0, Qt); | |
8f924df7 | 5360 | coding->mode &= CODING_MODE_LAST_BLOCK; |
a92e4183 | 5361 | } |
5bbf78c1 KH |
5362 | setup_coding_system (raw_text_coding_system |
5363 | (Vlast_coding_system_used), | |
5364 | coding); | |
e08bbb84 | 5365 | coding->src_multibyte = 0; |
a92e4183 | 5366 | } |
278bfdd6 | 5367 | } |
a4a37e65 KH |
5368 | coding->dst_multibyte = 0; |
5369 | ||
ed7a4b2d | 5370 | if (CODING_REQUIRE_ENCODING (coding)) |
0fa1789e | 5371 | { |
5bbf78c1 | 5372 | coding->dst_object = Qt; |
ed7a4b2d | 5373 | if (BUFFERP (object)) |
0fa1789e | 5374 | { |
d311d28c PE |
5375 | ptrdiff_t from_byte, from, to; |
5376 | ptrdiff_t save_pt, save_pt_byte; | |
5bbf78c1 KH |
5377 | struct buffer *cur = current_buffer; |
5378 | ||
5379 | set_buffer_internal (XBUFFER (object)); | |
5380 | save_pt = PT, save_pt_byte = PT_BYTE; | |
5381 | ||
400a67ff | 5382 | from_byte = PTR_BYTE_POS ((unsigned char *) buf); |
5bbf78c1 KH |
5383 | from = BYTE_TO_CHAR (from_byte); |
5384 | to = BYTE_TO_CHAR (from_byte + len); | |
5385 | TEMP_SET_PT_BOTH (from, from_byte); | |
5386 | encode_coding_object (coding, object, from, from_byte, | |
5387 | to, from_byte + len, Qt); | |
5388 | TEMP_SET_PT_BOTH (save_pt, save_pt_byte); | |
5389 | set_buffer_internal (cur); | |
ed7a4b2d KH |
5390 | } |
5391 | else if (STRINGP (object)) | |
5392 | { | |
550c8289 KH |
5393 | encode_coding_object (coding, object, 0, 0, SCHARS (object), |
5394 | SBYTES (object), Qt); | |
0fa1789e | 5395 | } |
5bbf78c1 | 5396 | else |
452294c2 | 5397 | { |
5bbf78c1 KH |
5398 | coding->dst_object = make_unibyte_string (buf, len); |
5399 | coding->produced = len; | |
452294c2 | 5400 | } |
ed7a4b2d | 5401 | |
e7fbaa65 | 5402 | len = coding->produced; |
347f3cd3 | 5403 | object = coding->dst_object; |
400a67ff | 5404 | buf = SSDATA (object); |
0fa1789e | 5405 | } |
d0d6b7c5 | 5406 | |
4d7e6e51 PE |
5407 | /* If there is already data in the write_queue, put the new data |
5408 | in the back of queue. Otherwise, ignore it. */ | |
5409 | if (!NILP (p->write_queue)) | |
5410 | write_queue_push (p, object, buf, len, 0); | |
20ca2e94 | 5411 | |
4d7e6e51 PE |
5412 | do /* while !NILP (p->write_queue) */ |
5413 | { | |
5414 | ptrdiff_t cur_len = -1; | |
5415 | const char *cur_buf; | |
5416 | Lisp_Object cur_object; | |
20ca2e94 | 5417 | |
4d7e6e51 PE |
5418 | /* If write_queue is empty, ignore it. */ |
5419 | if (!write_queue_pop (p, &cur_object, &cur_buf, &cur_len)) | |
0daad115 | 5420 | { |
4d7e6e51 PE |
5421 | cur_len = len; |
5422 | cur_buf = buf; | |
5423 | cur_object = object; | |
5424 | } | |
20ca2e94 | 5425 | |
4d7e6e51 PE |
5426 | while (cur_len > 0) |
5427 | { | |
5428 | /* Send this batch, using one or more write calls. */ | |
5429 | ptrdiff_t written = 0; | |
5430 | int outfd = p->outfd; | |
5431 | #ifdef DATAGRAM_SOCKETS | |
5432 | if (DATAGRAM_CHAN_P (outfd)) | |
20ca2e94 | 5433 | { |
4d7e6e51 PE |
5434 | rv = sendto (outfd, cur_buf, cur_len, |
5435 | 0, datagram_address[outfd].sa, | |
5436 | datagram_address[outfd].len); | |
908589fd | 5437 | if (rv >= 0) |
4d7e6e51 PE |
5438 | written = rv; |
5439 | else if (errno == EMSGSIZE) | |
4e604a5d | 5440 | report_file_error ("Sending datagram", proc); |
20ca2e94 | 5441 | } |
4d7e6e51 | 5442 | else |
e690ca94 | 5443 | #endif |
4d7e6e51 | 5444 | { |
8af55556 | 5445 | #ifdef HAVE_GNUTLS |
4d7e6e51 PE |
5446 | if (p->gnutls_p) |
5447 | written = emacs_gnutls_write (p, cur_buf, cur_len); | |
5448 | else | |
8af55556 | 5449 | #endif |
4ebbdd67 | 5450 | written = emacs_write_sig (outfd, cur_buf, cur_len); |
4d7e6e51 | 5451 | rv = (written ? 0 : -1); |
6b61353c | 5452 | #ifdef ADAPTIVE_READ_BUFFERING |
4d7e6e51 PE |
5453 | if (p->read_output_delay > 0 |
5454 | && p->adaptive_read_buffering == 1) | |
5455 | { | |
5456 | p->read_output_delay = 0; | |
5457 | process_output_delay_count--; | |
5458 | p->read_output_skip = 0; | |
6b61353c | 5459 | } |
4d7e6e51 PE |
5460 | #endif |
5461 | } | |
4556b700 | 5462 | |
4d7e6e51 PE |
5463 | if (rv < 0) |
5464 | { | |
22626a85 | 5465 | if (errno == EAGAIN |
d0d6b7c5 | 5466 | #ifdef EWOULDBLOCK |
4d7e6e51 | 5467 | || errno == EWOULDBLOCK |
d0d6b7c5 | 5468 | #endif |
4d7e6e51 PE |
5469 | ) |
5470 | /* Buffer is full. Wait, accepting input; | |
5471 | that may allow the program | |
5472 | to finish doing output and read more. */ | |
5473 | { | |
3433b6bd | 5474 | #ifdef BROKEN_PTY_READ_AFTER_EAGAIN |
4d7e6e51 PE |
5475 | /* A gross hack to work around a bug in FreeBSD. |
5476 | In the following sequence, read(2) returns | |
5477 | bogus data: | |
5478 | ||
5479 | write(2) 1022 bytes | |
5480 | write(2) 954 bytes, get EAGAIN | |
5481 | read(2) 1024 bytes in process_read_output | |
5482 | read(2) 11 bytes in process_read_output | |
5483 | ||
5484 | That is, read(2) returns more bytes than have | |
5485 | ever been written successfully. The 1033 bytes | |
5486 | read are the 1022 bytes written successfully | |
5487 | after processing (for example with CRs added if | |
5488 | the terminal is set up that way which it is | |
5489 | here). The same bytes will be seen again in a | |
5490 | later read(2), without the CRs. */ | |
5491 | ||
5492 | if (errno == EAGAIN) | |
5493 | { | |
5494 | int flags = FWRITE; | |
5495 | ioctl (p->outfd, TIOCFLUSH, &flags); | |
5496 | } | |
3433b6bd | 5497 | #endif /* BROKEN_PTY_READ_AFTER_EAGAIN */ |
177c0ea7 | 5498 | |
4d7e6e51 PE |
5499 | /* Put what we should have written in wait_queue. */ |
5500 | write_queue_push (p, cur_object, cur_buf, cur_len, 1); | |
5501 | wait_reading_process_output (0, 20 * 1000 * 1000, | |
5502 | 0, 0, Qnil, NULL, 0); | |
5503 | /* Reread queue, to see what is left. */ | |
5504 | break; | |
0daad115 | 5505 | } |
4d7e6e51 PE |
5506 | else if (errno == EPIPE) |
5507 | { | |
5508 | p->raw_status_new = 0; | |
5509 | pset_status (p, list2 (Qexit, make_number (256))); | |
5510 | p->tick = ++process_tick; | |
5511 | deactivate_process (proc); | |
5512 | error ("process %s no longer connected to pipe; closed it", | |
5513 | SDATA (p->name)); | |
5514 | } | |
5515 | else | |
5516 | /* This is a real error. */ | |
4e604a5d | 5517 | report_file_error ("Writing to process", proc); |
0daad115 | 5518 | } |
4d7e6e51 PE |
5519 | cur_buf += written; |
5520 | cur_len -= written; | |
0daad115 | 5521 | } |
d0d6b7c5 | 5522 | } |
4d7e6e51 | 5523 | while (!NILP (p->write_queue)); |
d0d6b7c5 JB |
5524 | } |
5525 | ||
5526 | DEFUN ("process-send-region", Fprocess_send_region, Sprocess_send_region, | |
fdb82f93 PJ |
5527 | 3, 3, 0, |
5528 | doc: /* Send current contents of region as input to PROCESS. | |
5529 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5530 | nil, indicating the current buffer's process. | |
5531 | Called from program, takes three arguments, PROCESS, START and END. | |
5532 | If the region is more than 500 characters long, | |
5533 | it is sent in several bunches. This may happen even for shorter regions. | |
5534 | Output from processes can arrive in between bunches. */) | |
5842a27b | 5535 | (Lisp_Object process, Lisp_Object start, Lisp_Object end) |
d0d6b7c5 | 5536 | { |
13002885 DA |
5537 | Lisp_Object proc = get_process (process); |
5538 | ptrdiff_t start_byte, end_byte; | |
d0d6b7c5 | 5539 | |
d0d6b7c5 | 5540 | validate_region (&start, &end); |
1b234f64 | 5541 | |
13002885 DA |
5542 | start_byte = CHAR_TO_BYTE (XINT (start)); |
5543 | end_byte = CHAR_TO_BYTE (XINT (end)); | |
5544 | ||
1b234f64 | 5545 | if (XINT (start) < GPT && XINT (end) > GPT) |
13002885 | 5546 | move_gap_both (XINT (start), start_byte); |
1b234f64 | 5547 | |
e454145b | 5548 | send_process (proc, (char *) BYTE_POS_ADDR (start_byte), |
13002885 | 5549 | end_byte - start_byte, Fcurrent_buffer ()); |
1b234f64 | 5550 | |
d0d6b7c5 JB |
5551 | return Qnil; |
5552 | } | |
5553 | ||
5554 | DEFUN ("process-send-string", Fprocess_send_string, Sprocess_send_string, | |
fdb82f93 PJ |
5555 | 2, 2, 0, |
5556 | doc: /* Send PROCESS the contents of STRING as input. | |
5557 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5558 | nil, indicating the current buffer's process. | |
5559 | If STRING is more than 500 characters long, | |
5560 | it is sent in several bunches. This may happen even for shorter strings. | |
5561 | Output from processes can arrive in between bunches. */) | |
5842a27b | 5562 | (Lisp_Object process, Lisp_Object string) |
d0d6b7c5 JB |
5563 | { |
5564 | Lisp_Object proc; | |
b7826503 | 5565 | CHECK_STRING (string); |
d0d6b7c5 | 5566 | proc = get_process (process); |
400a67ff | 5567 | send_process (proc, SSDATA (string), |
1b234f64 | 5568 | SBYTES (string), string); |
d0d6b7c5 JB |
5569 | return Qnil; |
5570 | } | |
5571 | \f | |
16782258 JD |
5572 | /* Return the foreground process group for the tty/pty that |
5573 | the process P uses. */ | |
dde14581 | 5574 | static pid_t |
d3da34e0 | 5575 | emacs_get_tty_pgrp (struct Lisp_Process *p) |
16782258 | 5576 | { |
dde14581 | 5577 | pid_t gid = -1; |
16782258 | 5578 | |
f3d9532b | 5579 | #ifdef TIOCGPGRP |
4d2b044c | 5580 | if (ioctl (p->infd, TIOCGPGRP, &gid) == -1 && ! NILP (p->tty_name)) |
16782258 JD |
5581 | { |
5582 | int fd; | |
5583 | /* Some OS:es (Solaris 8/9) does not allow TIOCGPGRP from the | |
5584 | master side. Try the slave side. */ | |
4d2b044c | 5585 | fd = emacs_open (SSDATA (p->tty_name), O_RDONLY, 0); |
16782258 JD |
5586 | |
5587 | if (fd != -1) | |
5588 | { | |
5589 | ioctl (fd, TIOCGPGRP, &gid); | |
5590 | emacs_close (fd); | |
5591 | } | |
5592 | } | |
5593 | #endif /* defined (TIOCGPGRP ) */ | |
5594 | ||
5595 | return gid; | |
5596 | } | |
5597 | ||
b81ea5ef RS |
5598 | DEFUN ("process-running-child-p", Fprocess_running_child_p, |
5599 | Sprocess_running_child_p, 0, 1, 0, | |
fdb82f93 PJ |
5600 | doc: /* Return t if PROCESS has given the terminal to a child. |
5601 | If the operating system does not make it possible to find out, | |
5602 | return t unconditionally. */) | |
5842a27b | 5603 | (Lisp_Object process) |
b81ea5ef RS |
5604 | { |
5605 | /* Initialize in case ioctl doesn't exist or gives an error, | |
5606 | in a way that will cause returning t. */ | |
dde14581 | 5607 | pid_t gid; |
b81ea5ef RS |
5608 | Lisp_Object proc; |
5609 | struct Lisp_Process *p; | |
5610 | ||
5611 | proc = get_process (process); | |
5612 | p = XPROCESS (proc); | |
5613 | ||
4d2b044c | 5614 | if (!EQ (p->type, Qreal)) |
b81ea5ef | 5615 | error ("Process %s is not a subprocess", |
4d2b044c | 5616 | SDATA (p->name)); |
60f0fb11 | 5617 | if (p->infd < 0) |
b81ea5ef | 5618 | error ("Process %s is not active", |
4d2b044c | 5619 | SDATA (p->name)); |
b81ea5ef | 5620 | |
16782258 | 5621 | gid = emacs_get_tty_pgrp (p); |
b81ea5ef | 5622 | |
6bfd98e7 | 5623 | if (gid == p->pid) |
b81ea5ef RS |
5624 | return Qnil; |
5625 | return Qt; | |
5626 | } | |
5627 | \f | |
d0d6b7c5 | 5628 | /* send a signal number SIGNO to PROCESS. |
b81ea5ef RS |
5629 | If CURRENT_GROUP is t, that means send to the process group |
5630 | that currently owns the terminal being used to communicate with PROCESS. | |
d0d6b7c5 | 5631 | This is used for various commands in shell mode. |
b81ea5ef RS |
5632 | If CURRENT_GROUP is lambda, that means send to the process group |
5633 | that currently owns the terminal, but only if it is NOT the shell itself. | |
5634 | ||
0bce5d9e | 5635 | If NOMSG is false, insert signal-announcements into process's buffers |
b0310da4 JB |
5636 | right away. |
5637 | ||
5638 | If we can, we try to signal PROCESS by sending control characters | |
e333e864 | 5639 | down the pty. This allows us to signal inferiors who have changed |
d983a10b | 5640 | their uid, for which kill would return an EPERM error. */ |
d0d6b7c5 | 5641 | |
f9738840 | 5642 | static void |
d3da34e0 | 5643 | process_send_signal (Lisp_Object process, int signo, Lisp_Object current_group, |
0bce5d9e | 5644 | bool nomsg) |
d0d6b7c5 JB |
5645 | { |
5646 | Lisp_Object proc; | |
0bce5d9e | 5647 | struct Lisp_Process *p; |
dde14581 | 5648 | pid_t gid; |
0bce5d9e | 5649 | bool no_pgrp = 0; |
d0d6b7c5 JB |
5650 | |
5651 | proc = get_process (process); | |
5652 | p = XPROCESS (proc); | |
5653 | ||
4d2b044c | 5654 | if (!EQ (p->type, Qreal)) |
d0d6b7c5 | 5655 | error ("Process %s is not a subprocess", |
4d2b044c | 5656 | SDATA (p->name)); |
60f0fb11 | 5657 | if (p->infd < 0) |
d0d6b7c5 | 5658 | error ("Process %s is not active", |
4d2b044c | 5659 | SDATA (p->name)); |
d0d6b7c5 | 5660 | |
60f0fb11 | 5661 | if (!p->pty_flag) |
d0d6b7c5 JB |
5662 | current_group = Qnil; |
5663 | ||
d0d6b7c5 | 5664 | /* If we are using pgrps, get a pgrp number and make it negative. */ |
2af70a0c RS |
5665 | if (NILP (current_group)) |
5666 | /* Send the signal to the shell's process group. */ | |
6bfd98e7 | 5667 | gid = p->pid; |
2af70a0c | 5668 | else |
d0d6b7c5 | 5669 | { |
b0310da4 | 5670 | #ifdef SIGNALS_VIA_CHARACTERS |
d0d6b7c5 JB |
5671 | /* If possible, send signals to the entire pgrp |
5672 | by sending an input character to it. */ | |
b0310da4 | 5673 | |
6be429b1 | 5674 | struct termios t; |
7f916a36 RS |
5675 | cc_t *sig_char = NULL; |
5676 | ||
60f0fb11 | 5677 | tcgetattr (p->infd, &t); |
6be429b1 JB |
5678 | |
5679 | switch (signo) | |
5680 | { | |
5681 | case SIGINT: | |
7f916a36 RS |
5682 | sig_char = &t.c_cc[VINTR]; |
5683 | break; | |
6be429b1 JB |
5684 | |
5685 | case SIGQUIT: | |
7f916a36 RS |
5686 | sig_char = &t.c_cc[VQUIT]; |
5687 | break; | |
6be429b1 JB |
5688 | |
5689 | case SIGTSTP: | |
d0adf46f | 5690 | #if defined (VSWTCH) && !defined (PREFER_VSUSP) |
7f916a36 | 5691 | sig_char = &t.c_cc[VSWTCH]; |
6be429b1 | 5692 | #else |
7f916a36 | 5693 | sig_char = &t.c_cc[VSUSP]; |
6be429b1 | 5694 | #endif |
7f916a36 | 5695 | break; |
6be429b1 JB |
5696 | } |
5697 | ||
ca4313d5 | 5698 | if (sig_char && *sig_char != CDISABLE) |
f1c206fc | 5699 | { |
f990b4e5 | 5700 | send_process (proc, (char *) sig_char, 1, Qnil); |
f1c206fc RS |
5701 | return; |
5702 | } | |
5703 | /* If we can't send the signal with a character, | |
5704 | fall through and send it another way. */ | |
f1c206fc RS |
5705 | |
5706 | /* The code above may fall through if it can't | |
5707 | handle the signal. */ | |
20505336 | 5708 | #endif /* defined (SIGNALS_VIA_CHARACTERS) */ |
d0d6b7c5 | 5709 | |
177c0ea7 | 5710 | #ifdef TIOCGPGRP |
2af70a0c | 5711 | /* Get the current pgrp using the tty itself, if we have that. |
d0d6b7c5 JB |
5712 | Otherwise, use the pty to get the pgrp. |
5713 | On pfa systems, saka@pfu.fujitsu.co.JP writes: | |
b0310da4 JB |
5714 | "TIOCGPGRP symbol defined in sys/ioctl.h at E50. |
5715 | But, TIOCGPGRP does not work on E50 ;-P works fine on E60" | |
d0d6b7c5 JB |
5716 | His patch indicates that if TIOCGPGRP returns an error, then |
5717 | we should just assume that p->pid is also the process group id. */ | |
d0d6b7c5 | 5718 | |
16782258 | 5719 | gid = emacs_get_tty_pgrp (p); |
f3d9532b | 5720 | |
16782258 JD |
5721 | if (gid == -1) |
5722 | /* If we can't get the information, assume | |
5723 | the shell owns the tty. */ | |
6bfd98e7 | 5724 | gid = p->pid; |
2af70a0c RS |
5725 | |
5726 | /* It is not clear whether anything really can set GID to -1. | |
5727 | Perhaps on some system one of those ioctls can or could do so. | |
5728 | Or perhaps this is vestigial. */ | |
d0d6b7c5 JB |
5729 | if (gid == -1) |
5730 | no_pgrp = 1; | |
b0310da4 | 5731 | #else /* ! defined (TIOCGPGRP ) */ |
301c3fe4 JB |
5732 | /* Can't select pgrps on this system, so we know that |
5733 | the child itself heads the pgrp. */ | |
6bfd98e7 | 5734 | gid = p->pid; |
301c3fe4 | 5735 | #endif /* ! defined (TIOCGPGRP ) */ |
b81ea5ef RS |
5736 | |
5737 | /* If current_group is lambda, and the shell owns the terminal, | |
5738 | don't send any signal. */ | |
6bfd98e7 | 5739 | if (EQ (current_group, Qlambda) && gid == p->pid) |
b81ea5ef | 5740 | return; |
d0d6b7c5 | 5741 | } |
d0d6b7c5 JB |
5742 | |
5743 | switch (signo) | |
5744 | { | |
5745 | #ifdef SIGCONT | |
5746 | case SIGCONT: | |
6bfd98e7 | 5747 | p->raw_status_new = 0; |
6a09a33b | 5748 | pset_status (p, Qrun); |
60f0fb11 | 5749 | p->tick = ++process_tick; |
d0d6b7c5 | 5750 | if (!nomsg) |
e42bdf01 CY |
5751 | { |
5752 | status_notify (NULL); | |
5753 | redisplay_preserve_echo_area (13); | |
5754 | } | |
d0d6b7c5 | 5755 | break; |
301c3fe4 | 5756 | #endif /* ! defined (SIGCONT) */ |
d0d6b7c5 | 5757 | case SIGINT: |
d0d6b7c5 | 5758 | case SIGQUIT: |
d0d6b7c5 | 5759 | case SIGKILL: |
60f0fb11 | 5760 | flush_pending_output (p->infd); |
d0d6b7c5 JB |
5761 | break; |
5762 | } | |
5763 | ||
5764 | /* If we don't have process groups, send the signal to the immediate | |
5765 | subprocess. That isn't really right, but it's better than any | |
5766 | obvious alternative. */ | |
5767 | if (no_pgrp) | |
5768 | { | |
6bfd98e7 | 5769 | kill (p->pid, signo); |
d0d6b7c5 JB |
5770 | return; |
5771 | } | |
5772 | ||
5773 | /* gid may be a pid, or minus a pgrp's number */ | |
5774 | #ifdef TIOCSIGSEND | |
5775 | if (!NILP (current_group)) | |
16782258 | 5776 | { |
60f0fb11 | 5777 | if (ioctl (p->infd, TIOCSIGSEND, signo) == -1) |
d983a10b | 5778 | kill (-gid, signo); |
16782258 | 5779 | } |
d0d6b7c5 JB |
5780 | else |
5781 | { | |
6bfd98e7 | 5782 | gid = - p->pid; |
d0d6b7c5 JB |
5783 | kill (gid, signo); |
5784 | } | |
301c3fe4 | 5785 | #else /* ! defined (TIOCSIGSEND) */ |
d983a10b | 5786 | kill (-gid, signo); |
301c3fe4 | 5787 | #endif /* ! defined (TIOCSIGSEND) */ |
d0d6b7c5 JB |
5788 | } |
5789 | ||
5790 | DEFUN ("interrupt-process", Finterrupt_process, Sinterrupt_process, 0, 2, 0, | |
fdb82f93 PJ |
5791 | doc: /* Interrupt process PROCESS. |
5792 | PROCESS may be a process, a buffer, or the name of a process or buffer. | |
f3d9532b | 5793 | No arg or nil means current buffer's process. |
fdb82f93 PJ |
5794 | Second arg CURRENT-GROUP non-nil means send signal to |
5795 | the current process-group of the process's controlling terminal | |
5796 | rather than to the process's own process group. | |
5797 | If the process is a shell, this means interrupt current subjob | |
5798 | rather than the shell. | |
5799 | ||
5800 | If CURRENT-GROUP is `lambda', and if the shell owns the terminal, | |
5801 | don't send the signal. */) | |
5842a27b | 5802 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5803 | { |
5804 | process_send_signal (process, SIGINT, current_group, 0); | |
5805 | return process; | |
5806 | } | |
5807 | ||
5808 | DEFUN ("kill-process", Fkill_process, Skill_process, 0, 2, 0, | |
fdb82f93 PJ |
5809 | doc: /* Kill process PROCESS. May be process or name of one. |
5810 | See function `interrupt-process' for more details on usage. */) | |
5842a27b | 5811 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5812 | { |
5813 | process_send_signal (process, SIGKILL, current_group, 0); | |
5814 | return process; | |
5815 | } | |
5816 | ||
5817 | DEFUN ("quit-process", Fquit_process, Squit_process, 0, 2, 0, | |
fdb82f93 PJ |
5818 | doc: /* Send QUIT signal to process PROCESS. May be process or name of one. |
5819 | See function `interrupt-process' for more details on usage. */) | |
5842a27b | 5820 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 JB |
5821 | { |
5822 | process_send_signal (process, SIGQUIT, current_group, 0); | |
5823 | return process; | |
5824 | } | |
5825 | ||
5826 | DEFUN ("stop-process", Fstop_process, Sstop_process, 0, 2, 0, | |
fdb82f93 | 5827 | doc: /* Stop process PROCESS. May be process or name of one. |
177c0ea7 | 5828 | See function `interrupt-process' for more details on usage. |
d888760c GM |
5829 | If PROCESS is a network or serial process, inhibit handling of incoming |
5830 | traffic. */) | |
5842a27b | 5831 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 | 5832 | { |
d888760c | 5833 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
5834 | { |
5835 | struct Lisp_Process *p; | |
177c0ea7 | 5836 | |
e690ca94 | 5837 | p = XPROCESS (process); |
4d2b044c | 5838 | if (NILP (p->command) |
60f0fb11 | 5839 | && p->infd >= 0) |
e690ca94 | 5840 | { |
60f0fb11 SM |
5841 | FD_CLR (p->infd, &input_wait_mask); |
5842 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
e690ca94 | 5843 | } |
6a09a33b | 5844 | pset_command (p, Qt); |
e690ca94 KS |
5845 | return process; |
5846 | } | |
d0d6b7c5 | 5847 | #ifndef SIGTSTP |
a9a73d6c | 5848 | error ("No SIGTSTP support"); |
d0d6b7c5 JB |
5849 | #else |
5850 | process_send_signal (process, SIGTSTP, current_group, 0); | |
5851 | #endif | |
5852 | return process; | |
5853 | } | |
5854 | ||
5855 | DEFUN ("continue-process", Fcontinue_process, Scontinue_process, 0, 2, 0, | |
fdb82f93 | 5856 | doc: /* Continue process PROCESS. May be process or name of one. |
177c0ea7 | 5857 | See function `interrupt-process' for more details on usage. |
d888760c GM |
5858 | If PROCESS is a network or serial process, resume handling of incoming |
5859 | traffic. */) | |
5842a27b | 5860 | (Lisp_Object process, Lisp_Object current_group) |
d0d6b7c5 | 5861 | { |
d888760c | 5862 | if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process))) |
e690ca94 KS |
5863 | { |
5864 | struct Lisp_Process *p; | |
5865 | ||
5866 | p = XPROCESS (process); | |
4d2b044c | 5867 | if (EQ (p->command, Qt) |
60f0fb11 | 5868 | && p->infd >= 0 |
4d2b044c | 5869 | && (!EQ (p->filter, Qt) || EQ (p->status, Qlisten))) |
e690ca94 | 5870 | { |
60f0fb11 SM |
5871 | FD_SET (p->infd, &input_wait_mask); |
5872 | FD_SET (p->infd, &non_keyboard_wait_mask); | |
d888760c GM |
5873 | #ifdef WINDOWSNT |
5874 | if (fd_info[ p->infd ].flags & FILE_SERIAL) | |
5875 | PurgeComm (fd_info[ p->infd ].hnd, PURGE_RXABORT | PURGE_RXCLEAR); | |
a7ebc409 | 5876 | #else /* not WINDOWSNT */ |
d888760c | 5877 | tcflush (p->infd, TCIFLUSH); |
a7ebc409 | 5878 | #endif /* not WINDOWSNT */ |
e690ca94 | 5879 | } |
6a09a33b | 5880 | pset_command (p, Qnil); |
e690ca94 KS |
5881 | return process; |
5882 | } | |
d0d6b7c5 JB |
5883 | #ifdef SIGCONT |
5884 | process_send_signal (process, SIGCONT, current_group, 0); | |
5885 | #else | |
a9a73d6c | 5886 | error ("No SIGCONT support"); |
d0d6b7c5 JB |
5887 | #endif |
5888 | return process; | |
5889 | } | |
5890 | ||
d983a10b PE |
5891 | /* Return the integer value of the signal whose abbreviation is ABBR, |
5892 | or a negative number if there is no such signal. */ | |
5893 | static int | |
5894 | abbr_to_signal (char const *name) | |
5895 | { | |
5896 | int i, signo; | |
5897 | char sigbuf[20]; /* Large enough for all valid signal abbreviations. */ | |
5898 | ||
5899 | if (!strncmp (name, "SIG", 3) || !strncmp (name, "sig", 3)) | |
5900 | name += 3; | |
5901 | ||
5902 | for (i = 0; i < sizeof sigbuf; i++) | |
5903 | { | |
5904 | sigbuf[i] = c_toupper (name[i]); | |
5905 | if (! sigbuf[i]) | |
5906 | return str2sig (sigbuf, &signo) == 0 ? signo : -1; | |
5907 | } | |
5908 | ||
5909 | return -1; | |
5910 | } | |
5911 | ||
d0d6b7c5 | 5912 | DEFUN ("signal-process", Fsignal_process, Ssignal_process, |
cdd5ea86 KS |
5913 | 2, 2, "sProcess (name or number): \nnSignal code: ", |
5914 | doc: /* Send PROCESS the signal with code SIGCODE. | |
648f6edf | 5915 | PROCESS may also be a number specifying the process id of the |
cdd5ea86 KS |
5916 | process to signal; in this case, the process need not be a child of |
5917 | this Emacs. | |
fdb82f93 | 5918 | SIGCODE may be an integer, or a symbol whose name is a signal name. */) |
5842a27b | 5919 | (Lisp_Object process, Lisp_Object sigcode) |
d0d6b7c5 | 5920 | { |
6bfd98e7 | 5921 | pid_t pid; |
d983a10b | 5922 | int signo; |
cdd5ea86 | 5923 | |
cdd5ea86 KS |
5924 | if (STRINGP (process)) |
5925 | { | |
d311d28c PE |
5926 | Lisp_Object tem = Fget_process (process); |
5927 | if (NILP (tem)) | |
cdd5ea86 | 5928 | { |
d44287d4 PE |
5929 | Lisp_Object process_number = |
5930 | string_to_number (SSDATA (process), 10, 1); | |
5931 | if (INTEGERP (process_number) || FLOATP (process_number)) | |
5932 | tem = process_number; | |
cdd5ea86 KS |
5933 | } |
5934 | process = tem; | |
5935 | } | |
d44287d4 | 5936 | else if (!NUMBERP (process)) |
cdd5ea86 | 5937 | process = get_process (process); |
177c0ea7 | 5938 | |
cdd5ea86 KS |
5939 | if (NILP (process)) |
5940 | return process; | |
5941 | ||
d83cf4cc PE |
5942 | if (NUMBERP (process)) |
5943 | CONS_TO_INTEGER (process, pid_t, pid); | |
d44287d4 PE |
5944 | else |
5945 | { | |
5946 | CHECK_PROCESS (process); | |
5947 | pid = XPROCESS (process)->pid; | |
5948 | if (pid <= 0) | |
4d2b044c | 5949 | error ("Cannot signal process %s", SDATA (XPROCESS (process)->name)); |
d44287d4 | 5950 | } |
4766242d | 5951 | |
4766242d | 5952 | if (INTEGERP (sigcode)) |
d983a10b PE |
5953 | { |
5954 | CHECK_TYPE_RANGED_INTEGER (int, sigcode); | |
5955 | signo = XINT (sigcode); | |
5956 | } | |
4766242d RS |
5957 | else |
5958 | { | |
25a48bd0 | 5959 | char *name; |
4766242d | 5960 | |
b7826503 | 5961 | CHECK_SYMBOL (sigcode); |
25a48bd0 | 5962 | name = SSDATA (SYMBOL_NAME (sigcode)); |
4766242d | 5963 | |
d983a10b PE |
5964 | signo = abbr_to_signal (name); |
5965 | if (signo < 0) | |
9fa195a2 | 5966 | error ("Undefined signal name %s", name); |
4766242d RS |
5967 | } |
5968 | ||
d983a10b | 5969 | return make_number (kill (pid, signo)); |
d0d6b7c5 JB |
5970 | } |
5971 | ||
5972 | DEFUN ("process-send-eof", Fprocess_send_eof, Sprocess_send_eof, 0, 1, 0, | |
fdb82f93 PJ |
5973 | doc: /* Make PROCESS see end-of-file in its input. |
5974 | EOF comes after any text already sent to it. | |
5975 | PROCESS may be a process, a buffer, the name of a process or buffer, or | |
5976 | nil, indicating the current buffer's process. | |
5977 | If PROCESS is a network connection, or is a process communicating | |
5978 | through a pipe (as opposed to a pty), then you cannot send any more | |
d888760c GM |
5979 | text to PROCESS after you call this function. |
5980 | If PROCESS is a serial process, wait until all output written to the | |
5981 | process has been transmitted to the serial port. */) | |
5842a27b | 5982 | (Lisp_Object process) |
d0d6b7c5 JB |
5983 | { |
5984 | Lisp_Object proc; | |
de7fbd09 | 5985 | struct coding_system *coding; |
d0d6b7c5 | 5986 | |
e690ca94 KS |
5987 | if (DATAGRAM_CONN_P (process)) |
5988 | return process; | |
5989 | ||
d0d6b7c5 | 5990 | proc = get_process (process); |
60f0fb11 | 5991 | coding = proc_encode_coding_system[XPROCESS (proc)->outfd]; |
577d03d5 RS |
5992 | |
5993 | /* Make sure the process is really alive. */ | |
6bfd98e7 | 5994 | if (XPROCESS (proc)->raw_status_new) |
577d03d5 | 5995 | update_status (XPROCESS (proc)); |
4d2b044c DA |
5996 | if (! EQ (XPROCESS (proc)->status, Qrun)) |
5997 | error ("Process %s not running", SDATA (XPROCESS (proc)->name)); | |
577d03d5 | 5998 | |
de7fbd09 KH |
5999 | if (CODING_REQUIRE_FLUSHING (coding)) |
6000 | { | |
6001 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
6002 | send_process (proc, "", 0, Qnil); | |
6003 | } | |
6004 | ||
60f0fb11 | 6005 | if (XPROCESS (proc)->pty_flag) |
4556b700 | 6006 | send_process (proc, "\004", 1, Qnil); |
4d2b044c | 6007 | else if (EQ (XPROCESS (proc)->type, Qserial)) |
d888760c | 6008 | { |
a7ebc409 | 6009 | #ifndef WINDOWSNT |
d888760c | 6010 | if (tcdrain (XPROCESS (proc)->outfd) != 0) |
4e604a5d | 6011 | report_file_error ("Failed tcdrain", Qnil); |
a7ebc409 | 6012 | #endif /* not WINDOWSNT */ |
d888760c GM |
6013 | /* Do nothing on Windows because writes are blocking. */ |
6014 | } | |
d0d6b7c5 JB |
6015 | else |
6016 | { | |
4525f571 RS |
6017 | int old_outfd, new_outfd; |
6018 | ||
93853f3d | 6019 | #ifdef HAVE_SHUTDOWN |
02f55c4b RS |
6020 | /* If this is a network connection, or socketpair is used |
6021 | for communication with the subprocess, call shutdown to cause EOF. | |
6022 | (In some old system, shutdown to socketpair doesn't work. | |
6023 | Then we just can't win.) */ | |
4d2b044c | 6024 | if (EQ (XPROCESS (proc)->type, Qnetwork) |
60f0fb11 SM |
6025 | || XPROCESS (proc)->outfd == XPROCESS (proc)->infd) |
6026 | shutdown (XPROCESS (proc)->outfd, 1); | |
02f55c4b | 6027 | /* In case of socketpair, outfd == infd, so don't close it. */ |
60f0fb11 SM |
6028 | if (XPROCESS (proc)->outfd != XPROCESS (proc)->infd) |
6029 | emacs_close (XPROCESS (proc)->outfd); | |
93853f3d | 6030 | #else /* not HAVE_SHUTDOWN */ |
60f0fb11 | 6031 | emacs_close (XPROCESS (proc)->outfd); |
93853f3d | 6032 | #endif /* not HAVE_SHUTDOWN */ |
68c45bf0 | 6033 | new_outfd = emacs_open (NULL_DEVICE, O_WRONLY, 0); |
27448380 | 6034 | if (new_outfd < 0) |
1088b922 | 6035 | emacs_abort (); |
60f0fb11 | 6036 | old_outfd = XPROCESS (proc)->outfd; |
4525f571 RS |
6037 | |
6038 | if (!proc_encode_coding_system[new_outfd]) | |
6039 | proc_encode_coding_system[new_outfd] | |
23f86fce | 6040 | = xmalloc (sizeof (struct coding_system)); |
ae1d87e2 PE |
6041 | *proc_encode_coding_system[new_outfd] |
6042 | = *proc_encode_coding_system[old_outfd]; | |
72af86bd AS |
6043 | memset (proc_encode_coding_system[old_outfd], 0, |
6044 | sizeof (struct coding_system)); | |
4525f571 | 6045 | |
60f0fb11 | 6046 | XPROCESS (proc)->outfd = new_outfd; |
d0d6b7c5 | 6047 | } |
d0d6b7c5 JB |
6048 | return process; |
6049 | } | |
d0d6b7c5 | 6050 | \f |
bb5f74ee | 6051 | /* The main Emacs thread records child processes in three places: |
0b3d4a47 | 6052 | |
bb5f74ee PE |
6053 | - Vprocess_alist, for asynchronous subprocesses, which are child |
6054 | processes visible to Lisp. | |
6055 | ||
6056 | - deleted_pid_list, for child processes invisible to Lisp, | |
6057 | typically because of delete-process. These are recorded so that | |
6058 | the processes can be reaped when they exit, so that the operating | |
6059 | system's process table is not cluttered by zombies. | |
0b3d4a47 | 6060 | |
bb5f74ee PE |
6061 | - the local variable PID in Fcall_process, call_process_cleanup and |
6062 | call_process_kill, for synchronous subprocesses. | |
6063 | record_unwind_protect is used to make sure this process is not | |
6064 | forgotten: if the user interrupts call-process and the child | |
6065 | process refuses to exit immediately even with two C-g's, | |
6066 | call_process_kill adds PID's contents to deleted_pid_list before | |
6067 | returning. | |
0b3d4a47 | 6068 | |
bb5f74ee PE |
6069 | The main Emacs thread invokes waitpid only on child processes that |
6070 | it creates and that have not been reaped. This avoid races on | |
6071 | platforms such as GTK, where other threads create their own | |
6072 | subprocesses which the main thread should not reap. For example, | |
6073 | if the main thread attempted to reap an already-reaped child, it | |
6074 | might inadvertently reap a GTK-created process that happened to | |
6075 | have the same process ID. */ | |
6076 | ||
f019a684 PE |
6077 | /* LIB_CHILD_HANDLER is a SIGCHLD handler that Emacs calls while doing |
6078 | its own SIGCHLD handling. On POSIXish systems, glib needs this to | |
fa55d2aa PE |
6079 | keep track of its own children. GNUstep is similar. */ |
6080 | ||
f019a684 | 6081 | static void dummy_handler (int sig) {} |
fa55d2aa | 6082 | static signal_handler_t volatile lib_child_handler; |
f019a684 | 6083 | |
bb5f74ee PE |
6084 | /* Handle a SIGCHLD signal by looking for known child processes of |
6085 | Emacs whose status have changed. For each one found, record its | |
6086 | new status. | |
177c0ea7 | 6087 | |
3fed8ad5 GM |
6088 | All we do is change the status; we do not run sentinels or print |
6089 | notifications. That is saved for the next time keyboard input is | |
6090 | done, in order to avoid timing errors. | |
6091 | ||
6092 | ** WARNING: this can be called during garbage collection. | |
6093 | Therefore, it must not be fooled by the presence of mark bits in | |
6094 | Lisp objects. | |
6095 | ||
6096 | ** USG WARNING: Although it is not obvious from the documentation | |
6097 | in signal(2), on a USG system the SIGCLD handler MUST NOT call | |
6098 | signal() before executing at least one wait(), otherwise the | |
6099 | handler will be called again, resulting in an infinite loop. The | |
6100 | relevant portion of the documentation reads "SIGCLD signals will be | |
6101 | queued and the signal-catching function will be continually | |
6102 | reentered until the queue is empty". Invoking signal() causes the | |
6103 | kernel to reexamine the SIGCLD queue. Fred Fish, UniSoft Systems | |
6b61353c KH |
6104 | Inc. |
6105 | ||
6106 | ** Malloc WARNING: This should never call malloc either directly or | |
6107 | indirectly; if it does, that is a bug */ | |
d0d6b7c5 | 6108 | |
bb5f74ee PE |
6109 | static void |
6110 | handle_child_signal (int sig) | |
d0d6b7c5 | 6111 | { |
20ef56db | 6112 | Lisp_Object tail; |
d0d6b7c5 | 6113 | |
20ef56db | 6114 | /* Find the process that signaled us, and record its status. */ |
d0d6b7c5 | 6115 | |
bb5f74ee PE |
6116 | /* The process can have been deleted by Fdelete_process, or have |
6117 | been started asynchronously by Fcall_process. */ | |
20ef56db PE |
6118 | for (tail = deleted_pid_list; CONSP (tail); tail = XCDR (tail)) |
6119 | { | |
0b3d4a47 PE |
6120 | bool all_pids_are_fixnums |
6121 | = (MOST_NEGATIVE_FIXNUM <= TYPE_MINIMUM (pid_t) | |
6122 | && TYPE_MAXIMUM (pid_t) <= MOST_POSITIVE_FIXNUM); | |
20ef56db | 6123 | Lisp_Object xpid = XCAR (tail); |
0b3d4a47 | 6124 | if (all_pids_are_fixnums ? INTEGERP (xpid) : NUMBERP (xpid)) |
a5cfdda8 | 6125 | { |
0b3d4a47 PE |
6126 | pid_t deleted_pid; |
6127 | if (INTEGERP (xpid)) | |
6128 | deleted_pid = XINT (xpid); | |
6129 | else | |
6130 | deleted_pid = XFLOAT_DATA (xpid); | |
bb5f74ee PE |
6131 | if (child_status_changed (deleted_pid, 0, 0)) |
6132 | XSETCAR (tail, Qnil); | |
a5cfdda8 | 6133 | } |
20ef56db | 6134 | } |
a5cfdda8 | 6135 | |
20ef56db | 6136 | /* Otherwise, if it is asynchronous, it is in Vprocess_alist. */ |
20ef56db PE |
6137 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
6138 | { | |
0b3d4a47 PE |
6139 | Lisp_Object proc = XCDR (XCAR (tail)); |
6140 | struct Lisp_Process *p = XPROCESS (proc); | |
bb5f74ee PE |
6141 | int status; |
6142 | ||
da9aff11 PE |
6143 | if (p->alive |
6144 | && child_status_changed (p->pid, &status, WUNTRACED | WCONTINUED)) | |
0b3d4a47 PE |
6145 | { |
6146 | /* Change the status of the process that was found. */ | |
6147 | p->tick = ++process_tick; | |
bb5f74ee | 6148 | p->raw_status = status; |
0b3d4a47 | 6149 | p->raw_status_new = 1; |
177c0ea7 | 6150 | |
0b3d4a47 | 6151 | /* If process has terminated, stop waiting for its output. */ |
bb5f74ee | 6152 | if (WIFSIGNALED (status) || WIFEXITED (status)) |
0b3d4a47 | 6153 | { |
0bce5d9e | 6154 | bool clear_desc_flag = 0; |
0b3d4a47 PE |
6155 | p->alive = 0; |
6156 | if (p->infd >= 0) | |
6157 | clear_desc_flag = 1; | |
e98d950b | 6158 | |
0b3d4a47 PE |
6159 | /* clear_desc_flag avoids a compiler bug in Microsoft C. */ |
6160 | if (clear_desc_flag) | |
6161 | { | |
6162 | FD_CLR (p->infd, &input_wait_mask); | |
6163 | FD_CLR (p->infd, &non_keyboard_wait_mask); | |
6164 | } | |
6165 | } | |
d0d6b7c5 | 6166 | } |
20ef56db | 6167 | } |
f019a684 PE |
6168 | |
6169 | lib_child_handler (sig); | |
2c41e781 JD |
6170 | #ifdef NS_IMPL_GNUSTEP |
6171 | /* NSTask in GNUStep sets its child handler each time it is called. | |
6172 | So we must re-set ours. */ | |
6173 | catch_child_signal(); | |
6174 | #endif | |
d0d6b7c5 | 6175 | } |
20ef56db PE |
6176 | |
6177 | static void | |
6178 | deliver_child_signal (int sig) | |
6179 | { | |
4d7e6e51 | 6180 | deliver_process_signal (sig, handle_child_signal); |
20ef56db | 6181 | } |
d0d6b7c5 JB |
6182 | \f |
6183 | ||
3b9a3dfa | 6184 | static Lisp_Object |
b93aacde | 6185 | exec_sentinel_error_handler (Lisp_Object error_val) |
3b9a3dfa | 6186 | { |
b93aacde | 6187 | cmd_error_internal (error_val, "error in process sentinel: "); |
3b9a3dfa RS |
6188 | Vinhibit_quit = Qt; |
6189 | update_echo_area (); | |
833ba342 | 6190 | Fsleep_for (make_number (2), Qnil); |
8c983bf2 | 6191 | return Qt; |
3b9a3dfa RS |
6192 | } |
6193 | ||
d0d6b7c5 | 6194 | static void |
d3da34e0 | 6195 | exec_sentinel (Lisp_Object proc, Lisp_Object reason) |
d0d6b7c5 | 6196 | { |
aba7731a | 6197 | Lisp_Object sentinel, odeactivate; |
1882aa38 | 6198 | struct Lisp_Process *p = XPROCESS (proc); |
d311d28c | 6199 | ptrdiff_t count = SPECPDL_INDEX (); |
1882aa38 | 6200 | bool outer_running_asynch_code = running_asynch_code; |
bbce7d72 | 6201 | int waiting = waiting_for_user_input_p; |
d0d6b7c5 | 6202 | |
84af9896 RS |
6203 | if (inhibit_sentinels) |
6204 | return; | |
6205 | ||
dfc21838 RS |
6206 | /* No need to gcpro these, because all we do with them later |
6207 | is test them for EQness, and none of them should be a string. */ | |
8fb3cf64 | 6208 | odeactivate = Vdeactivate_mark; |
aba7731a PE |
6209 | #if 0 |
6210 | Lisp_Object obuffer, okeymap; | |
dfc21838 | 6211 | XSETBUFFER (obuffer, current_buffer); |
4b4deea2 | 6212 | okeymap = BVAR (current_buffer, keymap); |
aba7731a | 6213 | #endif |
dfc21838 | 6214 | |
97e53006 SM |
6215 | /* There's no good reason to let sentinels change the current |
6216 | buffer, and many callers of accept-process-output, sit-for, and | |
6217 | friends don't expect current-buffer to be changed from under them. */ | |
66322887 | 6218 | record_unwind_current_buffer (); |
97e53006 | 6219 | |
4d2b044c | 6220 | sentinel = p->sentinel; |
d0d6b7c5 | 6221 | |
d0d6b7c5 JB |
6222 | /* Inhibit quit so that random quits don't screw up a running filter. */ |
6223 | specbind (Qinhibit_quit, Qt); | |
f00c449b | 6224 | specbind (Qlast_nonmenu_event, Qt); /* Why? --Stef */ |
3b9a3dfa | 6225 | |
4da2f5be RS |
6226 | /* In case we get recursively called, |
6227 | and we already saved the match data nonrecursively, | |
6228 | save the same match data in safely recursive fashion. */ | |
6229 | if (outer_running_asynch_code) | |
6230 | { | |
6231 | Lisp_Object tem; | |
89f2614d KS |
6232 | tem = Fmatch_data (Qnil, Qnil, Qnil); |
6233 | restore_search_regs (); | |
6234 | record_unwind_save_match_data (); | |
6235 | Fset_match_data (tem, Qt); | |
4da2f5be RS |
6236 | } |
6237 | ||
6238 | /* For speed, if a search happens within this code, | |
6239 | save the match data in a special nonrecursive fashion. */ | |
7074fde6 | 6240 | running_asynch_code = 1; |
4da2f5be | 6241 | |
3b9a3dfa | 6242 | internal_condition_case_1 (read_process_output_call, |
6c6f1994 | 6243 | list3 (sentinel, proc, reason), |
3b9a3dfa RS |
6244 | !NILP (Vdebug_on_error) ? Qnil : Qerror, |
6245 | exec_sentinel_error_handler); | |
4da2f5be RS |
6246 | |
6247 | /* If we saved the match data nonrecursively, restore it now. */ | |
89f2614d | 6248 | restore_search_regs (); |
4da2f5be | 6249 | running_asynch_code = outer_running_asynch_code; |
8fb3cf64 KH |
6250 | |
6251 | Vdeactivate_mark = odeactivate; | |
bbce7d72 RS |
6252 | |
6253 | /* Restore waiting_for_user_input_p as it was | |
6254 | when we were called, in case the filter clobbered it. */ | |
6255 | waiting_for_user_input_p = waiting; | |
6256 | ||
7973cfa8 | 6257 | #if 0 |
dfc21838 RS |
6258 | if (! EQ (Fcurrent_buffer (), obuffer) |
6259 | || ! EQ (current_buffer->keymap, okeymap)) | |
7973cfa8 | 6260 | #endif |
927e08be RS |
6261 | /* But do it only if the caller is actually going to read events. |
6262 | Otherwise there's no need to make him wake up, and it could | |
7157b8fe | 6263 | cause trouble (for example it would make sit_for return). */ |
927e08be RS |
6264 | if (waiting_for_user_input_p == -1) |
6265 | record_asynch_buffer_change (); | |
8fb3cf64 | 6266 | |
2ea6d561 | 6267 | unbind_to (count, Qnil); |
d0d6b7c5 JB |
6268 | } |
6269 | ||
6270 | /* Report all recent events of a change in process status | |
6271 | (either run the sentinel or output a message). | |
b50fe468 RS |
6272 | This is usually done while Emacs is waiting for keyboard input |
6273 | but can be done at other times. */ | |
d0d6b7c5 | 6274 | |
ff6daed3 | 6275 | static void |
d3da34e0 | 6276 | status_notify (struct Lisp_Process *deleting_process) |
d0d6b7c5 | 6277 | { |
1aa8d505 | 6278 | register Lisp_Object proc; |
2e4149a8 | 6279 | Lisp_Object tail, msg; |
d0d6b7c5 JB |
6280 | struct gcpro gcpro1, gcpro2; |
6281 | ||
2e4149a8 KH |
6282 | tail = Qnil; |
6283 | msg = Qnil; | |
d0d6b7c5 JB |
6284 | /* We need to gcpro tail; if read_process_output calls a filter |
6285 | which deletes a process and removes the cons to which tail points | |
6286 | from Vprocess_alist, and then causes a GC, tail is an unprotected | |
6287 | reference. */ | |
6288 | GCPRO2 (tail, msg); | |
6289 | ||
30623085 RS |
6290 | /* Set this now, so that if new processes are created by sentinels |
6291 | that we run, we get called again to handle their status changes. */ | |
6292 | update_tick = process_tick; | |
6293 | ||
99784d63 | 6294 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) |
d0d6b7c5 | 6295 | { |
30623085 RS |
6296 | Lisp_Object symbol; |
6297 | register struct Lisp_Process *p; | |
6298 | ||
99784d63 | 6299 | proc = Fcdr (XCAR (tail)); |
30623085 RS |
6300 | p = XPROCESS (proc); |
6301 | ||
60f0fb11 | 6302 | if (p->tick != p->update_tick) |
d0d6b7c5 | 6303 | { |
60f0fb11 | 6304 | p->update_tick = p->tick; |
d0d6b7c5 | 6305 | |
30623085 | 6306 | /* If process is still active, read any output that remains. */ |
4d2b044c DA |
6307 | while (! EQ (p->filter, Qt) |
6308 | && ! EQ (p->status, Qconnect) | |
6309 | && ! EQ (p->status, Qlisten) | |
d888760c | 6310 | /* Network or serial process not stopped: */ |
4d2b044c | 6311 | && ! EQ (p->command, Qt) |
60f0fb11 | 6312 | && p->infd >= 0 |
ff6daed3 | 6313 | && p != deleting_process |
60f0fb11 | 6314 | && read_process_output (proc, p->infd) > 0); |
d0d6b7c5 | 6315 | |
30623085 | 6316 | /* Get the text to use for the message. */ |
6bfd98e7 | 6317 | if (p->raw_status_new) |
30623085 | 6318 | update_status (p); |
116c423c | 6319 | msg = status_message (p); |
d0d6b7c5 | 6320 | |
30623085 | 6321 | /* If process is terminated, deactivate it or delete it. */ |
4d2b044c DA |
6322 | symbol = p->status; |
6323 | if (CONSP (p->status)) | |
6324 | symbol = XCAR (p->status); | |
d0d6b7c5 | 6325 | |
30623085 RS |
6326 | if (EQ (symbol, Qsignal) || EQ (symbol, Qexit) |
6327 | || EQ (symbol, Qclosed)) | |
6328 | { | |
6329 | if (delete_exited_processes) | |
6330 | remove_process (proc); | |
6331 | else | |
6332 | deactivate_process (proc); | |
6333 | } | |
d0d6b7c5 | 6334 | |
0ad61fe7 | 6335 | /* The actions above may have further incremented p->tick. |
1aa8d505 SM |
6336 | So set p->update_tick again so that an error in the sentinel will |
6337 | not cause this code to be run again. */ | |
60f0fb11 | 6338 | p->update_tick = p->tick; |
30623085 | 6339 | /* Now output the message suitably. */ |
1aa8d505 | 6340 | exec_sentinel (proc, msg); |
30623085 RS |
6341 | } |
6342 | } /* end for */ | |
d0d6b7c5 | 6343 | |
1aa8d505 | 6344 | update_mode_lines++; /* In case buffers use %s in mode-line-format. */ |
d0d6b7c5 JB |
6345 | UNGCPRO; |
6346 | } | |
0fa1789e | 6347 | |
1aa8d505 SM |
6348 | DEFUN ("internal-default-process-sentinel", Finternal_default_process_sentinel, |
6349 | Sinternal_default_process_sentinel, 2, 2, 0, | |
6350 | doc: /* Function used as default sentinel for processes. */) | |
6351 | (Lisp_Object proc, Lisp_Object msg) | |
6352 | { | |
6353 | Lisp_Object buffer, symbol; | |
6354 | struct Lisp_Process *p; | |
6355 | CHECK_PROCESS (proc); | |
6356 | p = XPROCESS (proc); | |
6357 | buffer = p->buffer; | |
6358 | symbol = p->status; | |
6359 | if (CONSP (symbol)) | |
6360 | symbol = XCAR (symbol); | |
6361 | ||
6362 | if (!EQ (symbol, Qrun) && !NILP (buffer)) | |
6363 | { | |
6364 | Lisp_Object tem; | |
6365 | struct buffer *old = current_buffer; | |
6366 | ptrdiff_t opoint, opoint_byte; | |
6367 | ptrdiff_t before, before_byte; | |
6368 | ||
6369 | /* Avoid error if buffer is deleted | |
6370 | (probably that's why the process is dead, too). */ | |
6371 | if (!BUFFER_LIVE_P (XBUFFER (buffer))) | |
6372 | return Qnil; | |
6373 | Fset_buffer (buffer); | |
6374 | ||
6375 | if (NILP (BVAR (current_buffer, enable_multibyte_characters))) | |
6376 | msg = (code_convert_string_norecord | |
6377 | (msg, Vlocale_coding_system, 1)); | |
6378 | ||
6379 | opoint = PT; | |
6380 | opoint_byte = PT_BYTE; | |
6381 | /* Insert new output into buffer | |
6382 | at the current end-of-output marker, | |
6383 | thus preserving logical ordering of input and output. */ | |
6384 | if (XMARKER (p->mark)->buffer) | |
6385 | Fgoto_char (p->mark); | |
6386 | else | |
6387 | SET_PT_BOTH (ZV, ZV_BYTE); | |
6388 | ||
6389 | before = PT; | |
6390 | before_byte = PT_BYTE; | |
6391 | ||
6392 | tem = BVAR (current_buffer, read_only); | |
6393 | bset_read_only (current_buffer, Qnil); | |
6394 | insert_string ("\nProcess "); | |
6395 | { /* FIXME: temporary kludge. */ | |
6396 | Lisp_Object tem2 = p->name; Finsert (1, &tem2); } | |
6397 | insert_string (" "); | |
6398 | Finsert (1, &msg); | |
6399 | bset_read_only (current_buffer, tem); | |
6400 | set_marker_both (p->mark, p->buffer, PT, PT_BYTE); | |
6401 | ||
6402 | if (opoint >= before) | |
6403 | SET_PT_BOTH (opoint + (PT - before), | |
6404 | opoint_byte + (PT_BYTE - before_byte)); | |
6405 | else | |
6406 | SET_PT_BOTH (opoint, opoint_byte); | |
6407 | ||
6408 | set_buffer_internal (old); | |
6409 | } | |
6410 | return Qnil; | |
6411 | } | |
6412 | ||
0fa1789e KH |
6413 | \f |
6414 | DEFUN ("set-process-coding-system", Fset_process_coding_system, | |
6415 | Sset_process_coding_system, 1, 3, 0, | |
fdb82f93 PJ |
6416 | doc: /* Set coding systems of PROCESS to DECODING and ENCODING. |
6417 | DECODING will be used to decode subprocess output and ENCODING to | |
6418 | encode subprocess input. */) | |
5842a27b | 6419 | (register Lisp_Object process, Lisp_Object decoding, Lisp_Object encoding) |
0fa1789e KH |
6420 | { |
6421 | register struct Lisp_Process *p; | |
6422 | ||
f3d9532b JB |
6423 | CHECK_PROCESS (process); |
6424 | p = XPROCESS (process); | |
60f0fb11 | 6425 | if (p->infd < 0) |
4d2b044c | 6426 | error ("Input file descriptor of %s closed", SDATA (p->name)); |
60f0fb11 | 6427 | if (p->outfd < 0) |
4d2b044c | 6428 | error ("Output file descriptor of %s closed", SDATA (p->name)); |
03f04413 KH |
6429 | Fcheck_coding_system (decoding); |
6430 | Fcheck_coding_system (encoding); | |
76d812bb | 6431 | encoding = coding_inherit_eol_type (encoding, Qnil); |
6a09a33b PE |
6432 | pset_decode_coding_system (p, decoding); |
6433 | pset_encode_coding_system (p, encoding); | |
f3d9532b | 6434 | setup_process_coding_systems (process); |
0fa1789e KH |
6435 | |
6436 | return Qnil; | |
6437 | } | |
6438 | ||
6439 | DEFUN ("process-coding-system", | |
6440 | Fprocess_coding_system, Sprocess_coding_system, 1, 1, 0, | |
fdb82f93 | 6441 | doc: /* Return a cons of coding systems for decoding and encoding of PROCESS. */) |
5842a27b | 6442 | (register Lisp_Object process) |
0fa1789e | 6443 | { |
f3d9532b | 6444 | CHECK_PROCESS (process); |
4d2b044c DA |
6445 | return Fcons (XPROCESS (process)->decode_coding_system, |
6446 | XPROCESS (process)->encode_coding_system); | |
0fa1789e | 6447 | } |
03f04413 KH |
6448 | |
6449 | DEFUN ("set-process-filter-multibyte", Fset_process_filter_multibyte, | |
6450 | Sset_process_filter_multibyte, 2, 2, 0, | |
7392e23c KS |
6451 | doc: /* Set multibyteness of the strings given to PROCESS's filter. |
6452 | If FLAG is non-nil, the filter is given multibyte strings. | |
6453 | If FLAG is nil, the filter is given unibyte strings. In this case, | |
03f04413 KH |
6454 | all character code conversion except for end-of-line conversion is |
6455 | suppressed. */) | |
5842a27b | 6456 | (Lisp_Object process, Lisp_Object flag) |
03f04413 KH |
6457 | { |
6458 | register struct Lisp_Process *p; | |
6459 | ||
f3d9532b JB |
6460 | CHECK_PROCESS (process); |
6461 | p = XPROCESS (process); | |
5431bd6a | 6462 | if (NILP (flag)) |
6a09a33b PE |
6463 | pset_decode_coding_system |
6464 | (p, raw_text_coding_system (p->decode_coding_system)); | |
f3d9532b | 6465 | setup_process_coding_systems (process); |
03f04413 KH |
6466 | |
6467 | return Qnil; | |
6468 | } | |
6469 | ||
6470 | DEFUN ("process-filter-multibyte-p", Fprocess_filter_multibyte_p, | |
6471 | Sprocess_filter_multibyte_p, 1, 1, 0, | |
6472 | doc: /* Return t if a multibyte string is given to PROCESS's filter.*/) | |
5842a27b | 6473 | (Lisp_Object process) |
03f04413 KH |
6474 | { |
6475 | register struct Lisp_Process *p; | |
5431bd6a | 6476 | struct coding_system *coding; |
03f04413 | 6477 | |
f3d9532b JB |
6478 | CHECK_PROCESS (process); |
6479 | p = XPROCESS (process); | |
5431bd6a SM |
6480 | coding = proc_decode_coding_system[p->infd]; |
6481 | return (CODING_FOR_UNIBYTE (coding) ? Qnil : Qt); | |
03f04413 KH |
6482 | } |
6483 | ||
6484 | ||
d0d6b7c5 | 6485 | \f |
cb768704 | 6486 | |
4475bec4 PE |
6487 | # ifdef HAVE_GPM |
6488 | ||
994d9841 | 6489 | void |
d3da34e0 | 6490 | add_gpm_wait_descriptor (int desc) |
994d9841 | 6491 | { |
3fad2ad2 | 6492 | add_keyboard_wait_descriptor (desc); |
994d9841 NR |
6493 | } |
6494 | ||
994d9841 | 6495 | void |
d3da34e0 | 6496 | delete_gpm_wait_descriptor (int desc) |
994d9841 | 6497 | { |
3fad2ad2 | 6498 | delete_keyboard_wait_descriptor (desc); |
994d9841 NR |
6499 | } |
6500 | ||
4475bec4 PE |
6501 | # endif |
6502 | ||
4a4bbad2 | 6503 | # ifdef USABLE_SIGIO |
006c5daa | 6504 | |
0bce5d9e | 6505 | /* Return true if *MASK has a bit set |
a69281ff RS |
6506 | that corresponds to one of the keyboard input descriptors. */ |
6507 | ||
0bce5d9e | 6508 | static bool |
d3da34e0 | 6509 | keyboard_bit_set (fd_set *mask) |
a69281ff RS |
6510 | { |
6511 | int fd; | |
6512 | ||
3fad2ad2 | 6513 | for (fd = 0; fd <= max_input_desc; fd++) |
a69281ff RS |
6514 | if (FD_ISSET (fd, mask) && FD_ISSET (fd, &input_wait_mask) |
6515 | && !FD_ISSET (fd, &non_keyboard_wait_mask)) | |
6516 | return 1; | |
6517 | ||
6518 | return 0; | |
6519 | } | |
006c5daa | 6520 | # endif |
934e2a68 | 6521 | |
f388c88a | 6522 | #else /* not subprocesses */ |
934e2a68 | 6523 | |
f388c88a EZ |
6524 | /* Defined on msdos.c. */ |
6525 | extern int sys_select (int, SELECT_TYPE *, SELECT_TYPE *, SELECT_TYPE *, | |
0d23c240 | 6526 | EMACS_TIME *, void *); |
934e2a68 | 6527 | |
f388c88a EZ |
6528 | /* Implementation of wait_reading_process_output, assuming that there |
6529 | are no subprocesses. Used only by the MS-DOS build. | |
934e2a68 | 6530 | |
f388c88a | 6531 | Wait for timeout to elapse and/or keyboard input to be available. |
934e2a68 | 6532 | |
d188e26b | 6533 | TIME_LIMIT is: |
d35af63c PE |
6534 | timeout in seconds |
6535 | If negative, gobble data immediately available but don't wait for any. | |
6536 | ||
d188e26b | 6537 | NSECS is: |
d35af63c PE |
6538 | an additional duration to wait, measured in nanoseconds |
6539 | If TIME_LIMIT is zero, then: | |
d188e26b PE |
6540 | If NSECS == 0, there is no limit. |
6541 | If NSECS > 0, the timeout consists of NSECS only. | |
d35af63c | 6542 | If NSECS < 0, gobble data immediately, as if TIME_LIMIT were negative. |
934e2a68 | 6543 | |
a0bee46f | 6544 | READ_KBD is: |
f388c88a EZ |
6545 | 0 to ignore keyboard input, or |
6546 | 1 to return when input is available, or | |
6547 | -1 means caller will actually read the input, so don't throw to | |
6548 | the quit handler. | |
934e2a68 | 6549 | |
f388c88a EZ |
6550 | see full version for other parameters. We know that wait_proc will |
6551 | always be NULL, since `subprocesses' isn't defined. | |
934e2a68 | 6552 | |
9fa1de30 | 6553 | DO_DISPLAY means redisplay should be done to show subprocess |
f388c88a | 6554 | output that arrives. |
934e2a68 | 6555 | |
f388c88a EZ |
6556 | Return true if we received input from any process. */ |
6557 | ||
0bce5d9e | 6558 | bool |
d35af63c | 6559 | wait_reading_process_output (intmax_t time_limit, int nsecs, int read_kbd, |
9fa1de30 | 6560 | bool do_display, |
1408902e EZ |
6561 | Lisp_Object wait_for_cell, |
6562 | struct Lisp_Process *wait_proc, int just_wait_proc) | |
d0d6b7c5 | 6563 | { |
f388c88a EZ |
6564 | register int nfds; |
6565 | EMACS_TIME end_time, timeout; | |
d0d6b7c5 | 6566 | |
d35af63c PE |
6567 | if (time_limit < 0) |
6568 | { | |
6569 | time_limit = 0; | |
6570 | nsecs = -1; | |
6571 | } | |
6572 | else if (TYPE_MAXIMUM (time_t) < time_limit) | |
6573 | time_limit = TYPE_MAXIMUM (time_t); | |
6574 | ||
f388c88a | 6575 | /* What does time_limit really mean? */ |
908589fd | 6576 | if (time_limit || nsecs > 0) |
f388c88a | 6577 | { |
e9a9ae03 PE |
6578 | timeout = make_emacs_time (time_limit, nsecs); |
6579 | end_time = add_emacs_time (current_emacs_time (), timeout); | |
f388c88a | 6580 | } |
84af9896 | 6581 | |
f388c88a EZ |
6582 | /* Turn off periodic alarms (in case they are in use) |
6583 | and then turn off any other atimers, | |
6584 | because the select emulator uses alarms. */ | |
6585 | stop_polling (); | |
6586 | turn_on_atimers (0); | |
d0d6b7c5 | 6587 | |
f388c88a EZ |
6588 | while (1) |
6589 | { | |
0bce5d9e | 6590 | bool timeout_reduced_for_timers = 0; |
a0bee46f PE |
6591 | SELECT_TYPE waitchannels; |
6592 | int xerrno; | |
dd2281ae | 6593 | |
f388c88a EZ |
6594 | /* If calling from keyboard input, do not quit |
6595 | since we want to return C-g as an input character. | |
6596 | Otherwise, do pending quit if requested. */ | |
6597 | if (read_kbd >= 0) | |
6598 | QUIT; | |
bad49fc7 | 6599 | |
f388c88a EZ |
6600 | /* Exit now if the cell we're waiting for became non-nil. */ |
6601 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) | |
6602 | break; | |
0a65b032 | 6603 | |
1aa8d505 SM |
6604 | /* Compute time from now till when time limit is up. */ |
6605 | /* Exit if already run out. */ | |
d35af63c | 6606 | if (nsecs < 0) |
52fd88d3 | 6607 | { |
216ee680 | 6608 | /* A negative timeout means |
52fd88d3 | 6609 | gobble output available now |
1aa8d505 | 6610 | but don't wait at all. */ |
52fd88d3 | 6611 | |
e9a9ae03 | 6612 | timeout = make_emacs_time (0, 0); |
52fd88d3 | 6613 | } |
908589fd | 6614 | else if (time_limit || nsecs > 0) |
6720a7fb | 6615 | { |
e9a9ae03 PE |
6616 | EMACS_TIME now = current_emacs_time (); |
6617 | if (EMACS_TIME_LE (end_time, now)) | |
6720a7fb | 6618 | break; |
e9a9ae03 | 6619 | timeout = sub_emacs_time (end_time, now); |
6720a7fb | 6620 | } |
52fd88d3 EZ |
6621 | else |
6622 | { | |
e9a9ae03 | 6623 | timeout = make_emacs_time (100000, 0); |
52fd88d3 | 6624 | } |
6720a7fb | 6625 | |
bae8d137 RS |
6626 | /* If our caller will not immediately handle keyboard events, |
6627 | run timer events directly. | |
6628 | (Callers that will immediately read keyboard events | |
6629 | call timer_delay on their own.) */ | |
f3fbd155 | 6630 | if (NILP (wait_for_cell)) |
bae8d137 RS |
6631 | { |
6632 | EMACS_TIME timer_delay; | |
0a65b032 | 6633 | |
9baacf76 | 6634 | do |
0a65b032 | 6635 | { |
9fa1de30 | 6636 | unsigned old_timers_run = timers_run; |
f868cd8a | 6637 | timer_delay = timer_check (); |
9baacf76 GM |
6638 | if (timers_run != old_timers_run && do_display) |
6639 | /* We must retry, since a timer may have requeued itself | |
6640 | and that could alter the time delay. */ | |
3007ebfb | 6641 | redisplay_preserve_echo_area (14); |
9baacf76 GM |
6642 | else |
6643 | break; | |
0a65b032 | 6644 | } |
9baacf76 | 6645 | while (!detect_input_pending ()); |
0a65b032 | 6646 | |
52fd88d3 | 6647 | /* If there is unread keyboard input, also return. */ |
b89a415a | 6648 | if (read_kbd != 0 |
52fd88d3 EZ |
6649 | && requeued_events_pending_p ()) |
6650 | break; | |
6651 | ||
908589fd | 6652 | if (EMACS_TIME_VALID_P (timer_delay) && nsecs >= 0) |
bae8d137 | 6653 | { |
d35af63c | 6654 | if (EMACS_TIME_LT (timer_delay, timeout)) |
bae8d137 | 6655 | { |
f694e5d2 | 6656 | timeout = timer_delay; |
bae8d137 RS |
6657 | timeout_reduced_for_timers = 1; |
6658 | } | |
6659 | } | |
6660 | } | |
6661 | ||
6720a7fb JB |
6662 | /* Cause C-g and alarm signals to take immediate action, |
6663 | and cause input available signals to zero out timeout. */ | |
b89a415a | 6664 | if (read_kbd < 0) |
6720a7fb JB |
6665 | set_waiting_for_input (&timeout); |
6666 | ||
ff11dfa1 | 6667 | /* If a frame has been newly mapped and needs updating, |
6720a7fb | 6668 | reprocess its display stuff. */ |
5164ee8e | 6669 | if (frame_garbaged && do_display) |
0a65b032 RS |
6670 | { |
6671 | clear_waiting_for_input (); | |
3007ebfb | 6672 | redisplay_preserve_echo_area (15); |
b89a415a | 6673 | if (read_kbd < 0) |
0a65b032 RS |
6674 | set_waiting_for_input (&timeout); |
6675 | } | |
6720a7fb | 6676 | |
a0bee46f PE |
6677 | /* Wait till there is something to do. */ |
6678 | FD_ZERO (&waitchannels); | |
b89a415a | 6679 | if (read_kbd && detect_input_pending ()) |
a0bee46f PE |
6680 | nfds = 0; |
6681 | else | |
1861b214 | 6682 | { |
a0bee46f PE |
6683 | if (read_kbd || !NILP (wait_for_cell)) |
6684 | FD_SET (0, &waitchannels); | |
6685 | nfds = pselect (1, &waitchannels, NULL, NULL, &timeout, NULL); | |
1861b214 | 6686 | } |
f694e5d2 KH |
6687 | |
6688 | xerrno = errno; | |
6720a7fb JB |
6689 | |
6690 | /* Make C-g and alarm signals set flags again */ | |
6691 | clear_waiting_for_input (); | |
6692 | ||
6693 | /* If we woke up due to SIGWINCH, actually change size now. */ | |
2b653806 | 6694 | do_pending_window_change (0); |
6720a7fb | 6695 | |
d35af63c | 6696 | if ((time_limit || nsecs) && nfds == 0 && ! timeout_reduced_for_timers) |
f694e5d2 KH |
6697 | /* We waited the full specified time, so return now. */ |
6698 | break; | |
6699 | ||
6720a7fb JB |
6700 | if (nfds == -1) |
6701 | { | |
6702 | /* If the system call was interrupted, then go around the | |
6703 | loop again. */ | |
f694e5d2 | 6704 | if (xerrno == EINTR) |
8db121c4 | 6705 | FD_ZERO (&waitchannels); |
f694e5d2 | 6706 | else |
4e604a5d | 6707 | report_file_errno ("Failed select", Qnil, xerrno); |
6720a7fb | 6708 | } |
6720a7fb | 6709 | |
f694e5d2 KH |
6710 | /* Check for keyboard input */ |
6711 | ||
b89a415a | 6712 | if (read_kbd |
78c1afb6 | 6713 | && detect_input_pending_run_timers (do_display)) |
f694e5d2 | 6714 | { |
78c1afb6 | 6715 | swallow_events (do_display); |
f694e5d2 | 6716 | if (detect_input_pending_run_timers (do_display)) |
a2fab450 | 6717 | break; |
78c1afb6 EZ |
6718 | } |
6719 | ||
52fd88d3 | 6720 | /* If there is unread keyboard input, also return. */ |
b89a415a | 6721 | if (read_kbd |
52fd88d3 EZ |
6722 | && requeued_events_pending_p ()) |
6723 | break; | |
6724 | ||
f854a00b RS |
6725 | /* If wait_for_cell. check for keyboard input |
6726 | but don't run any timers. | |
6727 | ??? (It seems wrong to me to check for keyboard | |
6728 | input at all when wait_for_cell, but the code | |
6729 | has been this way since July 1994. | |
6730 | Try changing this after version 19.31.) */ | |
f3fbd155 | 6731 | if (! NILP (wait_for_cell) |
f854a00b RS |
6732 | && detect_input_pending ()) |
6733 | { | |
6734 | swallow_events (do_display); | |
6735 | if (detect_input_pending ()) | |
6736 | break; | |
6737 | } | |
6738 | ||
0a65b032 | 6739 | /* Exit now if the cell we're waiting for became non-nil. */ |
f3fbd155 | 6740 | if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell))) |
0a65b032 | 6741 | break; |
6720a7fb JB |
6742 | } |
6743 | ||
a87b802f JB |
6744 | start_polling (); |
6745 | ||
6720a7fb JB |
6746 | return 0; |
6747 | } | |
6748 | ||
f388c88a EZ |
6749 | #endif /* not subprocesses */ |
6750 | ||
6751 | /* The following functions are needed even if async subprocesses are | |
6752 | not supported. Some of them are no-op stubs in that case. */ | |
6720a7fb | 6753 | |
01faa934 DN |
6754 | /* Add DESC to the set of keyboard input descriptors. */ |
6755 | ||
6756 | void | |
6757 | add_keyboard_wait_descriptor (int desc) | |
6758 | { | |
bf05eed6 | 6759 | #ifdef subprocesses /* actually means "not MSDOS" */ |
01faa934 DN |
6760 | FD_SET (desc, &input_wait_mask); |
6761 | FD_SET (desc, &non_process_wait_mask); | |
3fad2ad2 J |
6762 | if (desc > max_input_desc) |
6763 | max_input_desc = desc; | |
bf05eed6 | 6764 | #endif |
01faa934 DN |
6765 | } |
6766 | ||
6767 | /* From now on, do not expect DESC to give keyboard input. */ | |
6768 | ||
6769 | void | |
6770 | delete_keyboard_wait_descriptor (int desc) | |
6771 | { | |
bf05eed6 | 6772 | #ifdef subprocesses |
01faa934 DN |
6773 | FD_CLR (desc, &input_wait_mask); |
6774 | FD_CLR (desc, &non_process_wait_mask); | |
2878ba7e | 6775 | delete_input_desc (desc); |
bf05eed6 | 6776 | #endif |
01faa934 DN |
6777 | } |
6778 | ||
fc549af9 EZ |
6779 | /* Setup coding systems of PROCESS. */ |
6780 | ||
6781 | void | |
6782 | setup_process_coding_systems (Lisp_Object process) | |
6783 | { | |
6784 | #ifdef subprocesses | |
6785 | struct Lisp_Process *p = XPROCESS (process); | |
6786 | int inch = p->infd; | |
6787 | int outch = p->outfd; | |
6788 | Lisp_Object coding_system; | |
6789 | ||
6790 | if (inch < 0 || outch < 0) | |
6791 | return; | |
6792 | ||
6793 | if (!proc_decode_coding_system[inch]) | |
38182d90 | 6794 | proc_decode_coding_system[inch] = xmalloc (sizeof (struct coding_system)); |
4d2b044c | 6795 | coding_system = p->decode_coding_system; |
1aa8d505 SM |
6796 | if (EQ (p->filter, Qinternal_default_process_filter) |
6797 | && BUFFERP (p->buffer)) | |
fc549af9 | 6798 | { |
4d2b044c | 6799 | if (NILP (BVAR (XBUFFER (p->buffer), enable_multibyte_characters))) |
fc549af9 EZ |
6800 | coding_system = raw_text_coding_system (coding_system); |
6801 | } | |
6802 | setup_coding_system (coding_system, proc_decode_coding_system[inch]); | |
6803 | ||
6804 | if (!proc_encode_coding_system[outch]) | |
38182d90 | 6805 | proc_encode_coding_system[outch] = xmalloc (sizeof (struct coding_system)); |
4d2b044c | 6806 | setup_coding_system (p->encode_coding_system, |
fc549af9 EZ |
6807 | proc_encode_coding_system[outch]); |
6808 | #endif | |
6809 | } | |
6810 | ||
6720a7fb | 6811 | DEFUN ("get-buffer-process", Fget_buffer_process, Sget_buffer_process, 1, 1, 0, |
f388c88a EZ |
6812 | doc: /* Return the (or a) process associated with BUFFER. |
6813 | BUFFER may be a buffer or the name of one. */) | |
6814 | (register Lisp_Object buffer) | |
6720a7fb | 6815 | { |
f388c88a EZ |
6816 | #ifdef subprocesses |
6817 | register Lisp_Object buf, tail, proc; | |
6818 | ||
6819 | if (NILP (buffer)) return Qnil; | |
6820 | buf = Fget_buffer (buffer); | |
6821 | if (NILP (buf)) return Qnil; | |
6822 | ||
6823 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) | |
6824 | { | |
6825 | proc = Fcdr (XCAR (tail)); | |
4d2b044c | 6826 | if (PROCESSP (proc) && EQ (XPROCESS (proc)->buffer, buf)) |
f388c88a EZ |
6827 | return proc; |
6828 | } | |
6829 | #endif /* subprocesses */ | |
6720a7fb JB |
6830 | return Qnil; |
6831 | } | |
6832 | ||
52a1b894 | 6833 | DEFUN ("process-inherit-coding-system-flag", |
fdb82f93 PJ |
6834 | Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag, |
6835 | 1, 1, 0, | |
f388c88a EZ |
6836 | doc: /* Return the value of inherit-coding-system flag for PROCESS. |
6837 | If this flag is t, `buffer-file-coding-system' of the buffer | |
6838 | associated with PROCESS will inherit the coding system used to decode | |
6839 | the process output. */) | |
5842a27b | 6840 | (register Lisp_Object process) |
52a1b894 | 6841 | { |
f388c88a EZ |
6842 | #ifdef subprocesses |
6843 | CHECK_PROCESS (process); | |
6844 | return XPROCESS (process)->inherit_coding_system_flag ? Qt : Qnil; | |
6845 | #else | |
52a1b894 EZ |
6846 | /* Ignore the argument and return the value of |
6847 | inherit-process-coding-system. */ | |
6848 | return inherit_process_coding_system ? Qt : Qnil; | |
f388c88a | 6849 | #endif |
52a1b894 EZ |
6850 | } |
6851 | ||
6720a7fb | 6852 | /* Kill all processes associated with `buffer'. |
f388c88a | 6853 | If `buffer' is nil, kill all processes */ |
6720a7fb | 6854 | |
d9bb0c32 | 6855 | void |
f388c88a | 6856 | kill_buffer_processes (Lisp_Object buffer) |
6720a7fb | 6857 | { |
f388c88a EZ |
6858 | #ifdef subprocesses |
6859 | Lisp_Object tail, proc; | |
6860 | ||
6861 | for (tail = Vprocess_alist; CONSP (tail); tail = XCDR (tail)) | |
6862 | { | |
6863 | proc = XCDR (XCAR (tail)); | |
6864 | if (PROCESSP (proc) | |
4d2b044c | 6865 | && (NILP (buffer) || EQ (XPROCESS (proc)->buffer, buffer))) |
f388c88a EZ |
6866 | { |
6867 | if (NETCONN_P (proc) || SERIALCONN_P (proc)) | |
6868 | Fdelete_process (proc); | |
6869 | else if (XPROCESS (proc)->infd >= 0) | |
6870 | process_send_signal (proc, SIGHUP, Qnil, 1); | |
6871 | } | |
6872 | } | |
6873 | #else /* subprocesses */ | |
6874 | /* Since we have no subprocesses, this does nothing. */ | |
6875 | #endif /* subprocesses */ | |
6720a7fb JB |
6876 | } |
6877 | ||
a7ca3326 | 6878 | DEFUN ("waiting-for-user-input-p", Fwaiting_for_user_input_p, |
16a97296 | 6879 | Swaiting_for_user_input_p, 0, 0, 0, |
1aa8d505 | 6880 | doc: /* Return non-nil if Emacs is waiting for input from the user. |
77defa9a EZ |
6881 | This is intended for use by asynchronous process output filters and sentinels. */) |
6882 | (void) | |
6883 | { | |
6884 | #ifdef subprocesses | |
6885 | return (waiting_for_user_input_p ? Qt : Qnil); | |
6886 | #else | |
6887 | return Qnil; | |
6888 | #endif | |
6889 | } | |
6890 | ||
d568829b EZ |
6891 | /* Stop reading input from keyboard sources. */ |
6892 | ||
6893 | void | |
6894 | hold_keyboard_input (void) | |
6895 | { | |
6896 | kbd_is_on_hold = 1; | |
6897 | } | |
6898 | ||
6899 | /* Resume reading input from keyboard sources. */ | |
6900 | ||
6901 | void | |
6902 | unhold_keyboard_input (void) | |
6903 | { | |
6904 | kbd_is_on_hold = 0; | |
6905 | } | |
6906 | ||
0bce5d9e | 6907 | /* Return true if keyboard input is on hold, zero otherwise. */ |
d568829b | 6908 | |
0bce5d9e | 6909 | bool |
d568829b EZ |
6910 | kbd_on_hold_p (void) |
6911 | { | |
6912 | return kbd_is_on_hold; | |
6913 | } | |
6914 | ||
f388c88a EZ |
6915 | \f |
6916 | /* Enumeration of and access to system processes a-la ps(1). */ | |
6917 | ||
934e2a68 EZ |
6918 | DEFUN ("list-system-processes", Flist_system_processes, Slist_system_processes, |
6919 | 0, 0, 0, | |
6920 | doc: /* Return a list of numerical process IDs of all running processes. | |
6921 | If this functionality is unsupported, return nil. | |
6922 | ||
f388c88a EZ |
6923 | See `process-attributes' for getting attributes of a process given its ID. */) |
6924 | (void) | |
6925 | { | |
6926 | return list_system_processes (); | |
6927 | } | |
6928 | ||
6929 | DEFUN ("process-attributes", Fprocess_attributes, | |
6930 | Sprocess_attributes, 1, 1, 0, | |
6931 | doc: /* Return attributes of the process given by its PID, a number. | |
6932 | ||
6933 | Value is an alist where each element is a cons cell of the form | |
6934 | ||
6935 | \(KEY . VALUE) | |
6936 | ||
6937 | If this functionality is unsupported, the value is nil. | |
6938 | ||
6939 | See `list-system-processes' for getting a list of all process IDs. | |
6940 | ||
6941 | The KEYs of the attributes that this function may return are listed | |
6942 | below, together with the type of the associated VALUE (in parentheses). | |
6943 | Not all platforms support all of these attributes; unsupported | |
6944 | attributes will not appear in the returned alist. | |
6945 | Unless explicitly indicated otherwise, numbers can have either | |
6946 | integer or floating point values. | |
6947 | ||
6948 | euid -- Effective user User ID of the process (number) | |
6949 | user -- User name corresponding to euid (string) | |
6950 | egid -- Effective user Group ID of the process (number) | |
6951 | group -- Group name corresponding to egid (string) | |
6952 | comm -- Command name (executable name only) (string) | |
6953 | state -- Process state code, such as "S", "R", or "T" (string) | |
6954 | ppid -- Parent process ID (number) | |
6955 | pgrp -- Process group ID (number) | |
6956 | sess -- Session ID, i.e. process ID of session leader (number) | |
6957 | ttname -- Controlling tty name (string) | |
6958 | tpgid -- ID of foreground process group on the process's tty (number) | |
6959 | minflt -- number of minor page faults (number) | |
6960 | majflt -- number of major page faults (number) | |
6961 | cminflt -- cumulative number of minor page faults (number) | |
6962 | cmajflt -- cumulative number of major page faults (number) | |
d35af63c PE |
6963 | utime -- user time used by the process, in (current-time) format, |
6964 | which is a list of integers (HIGH LOW USEC PSEC) | |
6965 | stime -- system time used by the process (current-time) | |
6966 | time -- sum of utime and stime (current-time) | |
6967 | cutime -- user time used by the process and its children (current-time) | |
6968 | cstime -- system time used by the process and its children (current-time) | |
6969 | ctime -- sum of cutime and cstime (current-time) | |
f388c88a EZ |
6970 | pri -- priority of the process (number) |
6971 | nice -- nice value of the process (number) | |
6972 | thcount -- process thread count (number) | |
d35af63c | 6973 | start -- time the process started (current-time) |
f388c88a EZ |
6974 | vsize -- virtual memory size of the process in KB's (number) |
6975 | rss -- resident set size of the process in KB's (number) | |
d35af63c | 6976 | etime -- elapsed time the process is running, in (HIGH LOW USEC PSEC) format |
f388c88a EZ |
6977 | pcpu -- percents of CPU time used by the process (floating-point number) |
6978 | pmem -- percents of total physical memory used by process's resident set | |
6979 | (floating-point number) | |
6980 | args -- command line which invoked the process (string). */) | |
6981 | ( Lisp_Object pid) | |
6982 | { | |
6983 | return system_process_attributes (pid); | |
6984 | } | |
6985 | ||
fa55d2aa PE |
6986 | /* Arrange to catch SIGCHLD if this hasn't already been arranged. |
6987 | Invoke this after init_process_emacs, and after glib and/or GNUstep | |
6988 | futz with the SIGCHLD handler, but before Emacs forks any children. | |
6989 | This function's caller should block SIGCHLD. */ | |
0dfeed58 | 6990 | |
dae2f5ef PE |
6991 | #ifndef NS_IMPL_GNUSTEP |
6992 | static | |
6993 | #endif | |
c0342369 JD |
6994 | void |
6995 | catch_child_signal (void) | |
6996 | { | |
f019a684 | 6997 | struct sigaction action, old_action; |
c0342369 | 6998 | emacs_sigaction_init (&action, deliver_child_signal); |
dae2f5ef | 6999 | block_child_signal (); |
f019a684 PE |
7000 | sigaction (SIGCHLD, &action, &old_action); |
7001 | eassert (! (old_action.sa_flags & SA_SIGINFO)); | |
fa55d2aa | 7002 | |
dae2f5ef PE |
7003 | if (old_action.sa_handler != deliver_child_signal) |
7004 | lib_child_handler | |
7005 | = (old_action.sa_handler == SIG_DFL || old_action.sa_handler == SIG_IGN | |
7006 | ? dummy_handler | |
7007 | : old_action.sa_handler); | |
7008 | unblock_child_signal (); | |
c0342369 JD |
7009 | } |
7010 | ||
f388c88a | 7011 | \f |
b82da769 GM |
7012 | /* This is not called "init_process" because that is the name of a |
7013 | Mach system call, so it would cause problems on Darwin systems. */ | |
f388c88a | 7014 | void |
b82da769 | 7015 | init_process_emacs (void) |
f388c88a EZ |
7016 | { |
7017 | #ifdef subprocesses | |
7018 | register int i; | |
7019 | ||
7020 | inhibit_sentinels = 0; | |
7021 | ||
dae2f5ef PE |
7022 | #ifndef CANNOT_DUMP |
7023 | if (! noninteractive || initialized) | |
7024 | #endif | |
7025 | { | |
8f43ce49 | 7026 | #if defined HAVE_GLIB && !defined WINDOWSNT |
dae2f5ef PE |
7027 | /* Tickle glib's child-handling code. Ask glib to wait for Emacs itself; |
7028 | this should always fail, but is enough to initialize glib's | |
8f43ce49 PE |
7029 | private SIGCHLD handler, allowing catch_child_signal to copy |
7030 | it into lib_child_handler. */ | |
dae2f5ef PE |
7031 | g_source_unref (g_child_watch_source_new (getpid ())); |
7032 | #endif | |
7033 | catch_child_signal (); | |
7034 | } | |
7035 | ||
f388c88a EZ |
7036 | FD_ZERO (&input_wait_mask); |
7037 | FD_ZERO (&non_keyboard_wait_mask); | |
7038 | FD_ZERO (&non_process_wait_mask); | |
3fad2ad2 | 7039 | FD_ZERO (&write_mask); |
2878ba7e | 7040 | max_process_desc = max_input_desc = -1; |
3fad2ad2 | 7041 | memset (fd_callback_info, 0, sizeof (fd_callback_info)); |
f388c88a EZ |
7042 | |
7043 | #ifdef NON_BLOCKING_CONNECT | |
7044 | FD_ZERO (&connect_wait_mask); | |
7045 | num_pending_connects = 0; | |
7046 | #endif | |
7047 | ||
7048 | #ifdef ADAPTIVE_READ_BUFFERING | |
7049 | process_output_delay_count = 0; | |
7050 | process_output_skip = 0; | |
7051 | #endif | |
7052 | ||
7053 | /* Don't do this, it caused infinite select loops. The display | |
7054 | method should call add_keyboard_wait_descriptor on stdin if it | |
7055 | needs that. */ | |
7056 | #if 0 | |
7057 | FD_SET (0, &input_wait_mask); | |
7058 | #endif | |
7059 | ||
7060 | Vprocess_alist = Qnil; | |
f388c88a | 7061 | deleted_pid_list = Qnil; |
f388c88a EZ |
7062 | for (i = 0; i < MAXDESC; i++) |
7063 | { | |
7064 | chan_process[i] = Qnil; | |
7065 | proc_buffered_char[i] = -1; | |
7066 | } | |
7067 | memset (proc_decode_coding_system, 0, sizeof proc_decode_coding_system); | |
7068 | memset (proc_encode_coding_system, 0, sizeof proc_encode_coding_system); | |
7069 | #ifdef DATAGRAM_SOCKETS | |
7070 | memset (datagram_address, 0, sizeof datagram_address); | |
7071 | #endif | |
7072 | ||
f388c88a EZ |
7073 | { |
7074 | Lisp_Object subfeatures = Qnil; | |
7075 | const struct socket_options *sopt; | |
7076 | ||
7077 | #define ADD_SUBFEATURE(key, val) \ | |
7078 | subfeatures = pure_cons (pure_cons (key, pure_cons (val, Qnil)), subfeatures) | |
7079 | ||
7080 | #ifdef NON_BLOCKING_CONNECT | |
7081 | ADD_SUBFEATURE (QCnowait, Qt); | |
7082 | #endif | |
7083 | #ifdef DATAGRAM_SOCKETS | |
7084 | ADD_SUBFEATURE (QCtype, Qdatagram); | |
7085 | #endif | |
7086 | #ifdef HAVE_SEQPACKET | |
7087 | ADD_SUBFEATURE (QCtype, Qseqpacket); | |
7088 | #endif | |
7089 | #ifdef HAVE_LOCAL_SOCKETS | |
7090 | ADD_SUBFEATURE (QCfamily, Qlocal); | |
7091 | #endif | |
7092 | ADD_SUBFEATURE (QCfamily, Qipv4); | |
7093 | #ifdef AF_INET6 | |
7094 | ADD_SUBFEATURE (QCfamily, Qipv6); | |
7095 | #endif | |
7096 | #ifdef HAVE_GETSOCKNAME | |
7097 | ADD_SUBFEATURE (QCservice, Qt); | |
7098 | #endif | |
f388c88a | 7099 | ADD_SUBFEATURE (QCserver, Qt); |
f388c88a EZ |
7100 | |
7101 | for (sopt = socket_options; sopt->name; sopt++) | |
7102 | subfeatures = pure_cons (intern_c_string (sopt->name), subfeatures); | |
7103 | ||
7104 | Fprovide (intern_c_string ("make-network-process"), subfeatures); | |
7105 | } | |
f388c88a EZ |
7106 | |
7107 | #if defined (DARWIN_OS) | |
7108 | /* PTYs are broken on Darwin < 6, but are sometimes useful for interactive | |
7109 | processes. As such, we only change the default value. */ | |
7110 | if (initialized) | |
7111 | { | |
f44bd759 PE |
7112 | char const *release = (STRINGP (Voperating_system_release) |
7113 | ? SSDATA (Voperating_system_release) | |
7114 | : 0); | |
6de0e799 | 7115 | if (!release || !release[0] || (release[0] < '7' && release[1] == '.')) { |
f388c88a EZ |
7116 | Vprocess_connection_type = Qnil; |
7117 | } | |
7118 | } | |
7119 | #endif | |
7120 | #endif /* subprocesses */ | |
7121 | kbd_is_on_hold = 0; | |
7122 | } | |
7123 | ||
7124 | void | |
7125 | syms_of_process (void) | |
7126 | { | |
7127 | #ifdef subprocesses | |
7128 | ||
cd3520a4 JB |
7129 | DEFSYM (Qprocessp, "processp"); |
7130 | DEFSYM (Qrun, "run"); | |
7131 | DEFSYM (Qstop, "stop"); | |
7132 | DEFSYM (Qsignal, "signal"); | |
f388c88a EZ |
7133 | |
7134 | /* Qexit is already staticpro'd by syms_of_eval; don't staticpro it | |
7135 | here again. | |
934e2a68 | 7136 | |
f388c88a EZ |
7137 | Qexit = intern_c_string ("exit"); |
7138 | staticpro (&Qexit); */ | |
934e2a68 | 7139 | |
cd3520a4 JB |
7140 | DEFSYM (Qopen, "open"); |
7141 | DEFSYM (Qclosed, "closed"); | |
7142 | DEFSYM (Qconnect, "connect"); | |
7143 | DEFSYM (Qfailed, "failed"); | |
7144 | DEFSYM (Qlisten, "listen"); | |
7145 | DEFSYM (Qlocal, "local"); | |
7146 | DEFSYM (Qipv4, "ipv4"); | |
f388c88a | 7147 | #ifdef AF_INET6 |
cd3520a4 JB |
7148 | DEFSYM (Qipv6, "ipv6"); |
7149 | #endif | |
7150 | DEFSYM (Qdatagram, "datagram"); | |
7151 | DEFSYM (Qseqpacket, "seqpacket"); | |
7152 | ||
7153 | DEFSYM (QCport, ":port"); | |
7154 | DEFSYM (QCspeed, ":speed"); | |
7155 | DEFSYM (QCprocess, ":process"); | |
7156 | ||
7157 | DEFSYM (QCbytesize, ":bytesize"); | |
7158 | DEFSYM (QCstopbits, ":stopbits"); | |
7159 | DEFSYM (QCparity, ":parity"); | |
7160 | DEFSYM (Qodd, "odd"); | |
7161 | DEFSYM (Qeven, "even"); | |
7162 | DEFSYM (QCflowcontrol, ":flowcontrol"); | |
7163 | DEFSYM (Qhw, "hw"); | |
7164 | DEFSYM (Qsw, "sw"); | |
7165 | DEFSYM (QCsummary, ":summary"); | |
7166 | ||
7167 | DEFSYM (Qreal, "real"); | |
7168 | DEFSYM (Qnetwork, "network"); | |
7169 | DEFSYM (Qserial, "serial"); | |
7170 | DEFSYM (QCbuffer, ":buffer"); | |
7171 | DEFSYM (QChost, ":host"); | |
7172 | DEFSYM (QCservice, ":service"); | |
7173 | DEFSYM (QClocal, ":local"); | |
7174 | DEFSYM (QCremote, ":remote"); | |
7175 | DEFSYM (QCcoding, ":coding"); | |
7176 | DEFSYM (QCserver, ":server"); | |
7177 | DEFSYM (QCnowait, ":nowait"); | |
7178 | DEFSYM (QCsentinel, ":sentinel"); | |
7179 | DEFSYM (QClog, ":log"); | |
7180 | DEFSYM (QCnoquery, ":noquery"); | |
7181 | DEFSYM (QCstop, ":stop"); | |
7182 | DEFSYM (QCoptions, ":options"); | |
7183 | DEFSYM (QCplist, ":plist"); | |
7184 | ||
7185 | DEFSYM (Qlast_nonmenu_event, "last-nonmenu-event"); | |
934e2a68 | 7186 | |
f388c88a | 7187 | staticpro (&Vprocess_alist); |
f388c88a | 7188 | staticpro (&deleted_pid_list); |
934e2a68 | 7189 | |
f388c88a | 7190 | #endif /* subprocesses */ |
6720a7fb | 7191 | |
cd3520a4 JB |
7192 | DEFSYM (QCname, ":name"); |
7193 | DEFSYM (QCtype, ":type"); | |
7194 | ||
7195 | DEFSYM (Qeuid, "euid"); | |
7196 | DEFSYM (Qegid, "egid"); | |
7197 | DEFSYM (Quser, "user"); | |
7198 | DEFSYM (Qgroup, "group"); | |
7199 | DEFSYM (Qcomm, "comm"); | |
7200 | DEFSYM (Qstate, "state"); | |
7201 | DEFSYM (Qppid, "ppid"); | |
7202 | DEFSYM (Qpgrp, "pgrp"); | |
7203 | DEFSYM (Qsess, "sess"); | |
7204 | DEFSYM (Qttname, "ttname"); | |
7205 | DEFSYM (Qtpgid, "tpgid"); | |
7206 | DEFSYM (Qminflt, "minflt"); | |
7207 | DEFSYM (Qmajflt, "majflt"); | |
7208 | DEFSYM (Qcminflt, "cminflt"); | |
7209 | DEFSYM (Qcmajflt, "cmajflt"); | |
7210 | DEFSYM (Qutime, "utime"); | |
7211 | DEFSYM (Qstime, "stime"); | |
7212 | DEFSYM (Qtime, "time"); | |
7213 | DEFSYM (Qcutime, "cutime"); | |
7214 | DEFSYM (Qcstime, "cstime"); | |
7215 | DEFSYM (Qctime, "ctime"); | |
1aa8d505 SM |
7216 | DEFSYM (Qinternal_default_process_sentinel, |
7217 | "internal-default-process-sentinel"); | |
7218 | DEFSYM (Qinternal_default_process_filter, | |
7219 | "internal-default-process-filter"); | |
cd3520a4 JB |
7220 | DEFSYM (Qpri, "pri"); |
7221 | DEFSYM (Qnice, "nice"); | |
7222 | DEFSYM (Qthcount, "thcount"); | |
7223 | DEFSYM (Qstart, "start"); | |
7224 | DEFSYM (Qvsize, "vsize"); | |
7225 | DEFSYM (Qrss, "rss"); | |
7226 | DEFSYM (Qetime, "etime"); | |
7227 | DEFSYM (Qpcpu, "pcpu"); | |
7228 | DEFSYM (Qpmem, "pmem"); | |
7229 | DEFSYM (Qargs, "args"); | |
9057ff80 | 7230 | |
29208e82 | 7231 | DEFVAR_BOOL ("delete-exited-processes", delete_exited_processes, |
fb7ada5f | 7232 | doc: /* Non-nil means delete processes immediately when they exit. |
f388c88a EZ |
7233 | A value of nil means don't delete them until `list-processes' is run. */); |
7234 | ||
7235 | delete_exited_processes = 1; | |
7236 | ||
462aa963 | 7237 | #ifdef subprocesses |
29208e82 | 7238 | DEFVAR_LISP ("process-connection-type", Vprocess_connection_type, |
f388c88a EZ |
7239 | doc: /* Control type of device used to communicate with subprocesses. |
7240 | Values are nil to use a pipe, or t or `pty' to use a pty. | |
7241 | The value has no effect if the system has no ptys or if all ptys are busy: | |
7242 | then a pipe is used in any case. | |
7243 | The value takes effect when `start-process' is called. */); | |
7244 | Vprocess_connection_type = Qt; | |
7245 | ||
7246 | #ifdef ADAPTIVE_READ_BUFFERING | |
29208e82 | 7247 | DEFVAR_LISP ("process-adaptive-read-buffering", Vprocess_adaptive_read_buffering, |
f388c88a EZ |
7248 | doc: /* If non-nil, improve receive buffering by delaying after short reads. |
7249 | On some systems, when Emacs reads the output from a subprocess, the output data | |
7250 | is read in very small blocks, potentially resulting in very poor performance. | |
7251 | This behavior can be remedied to some extent by setting this variable to a | |
7252 | non-nil value, as it will automatically delay reading from such processes, to | |
7253 | allow them to produce more output before Emacs tries to read it. | |
7254 | If the value is t, the delay is reset after each write to the process; any other | |
7255 | non-nil value means that the delay is not reset on write. | |
7256 | The variable takes effect when `start-process' is called. */); | |
7257 | Vprocess_adaptive_read_buffering = Qt; | |
7258 | #endif | |
7259 | ||
7260 | defsubr (&Sprocessp); | |
7261 | defsubr (&Sget_process); | |
7262 | defsubr (&Sdelete_process); | |
7263 | defsubr (&Sprocess_status); | |
7264 | defsubr (&Sprocess_exit_status); | |
7265 | defsubr (&Sprocess_id); | |
7266 | defsubr (&Sprocess_name); | |
7267 | defsubr (&Sprocess_tty_name); | |
7268 | defsubr (&Sprocess_command); | |
7269 | defsubr (&Sset_process_buffer); | |
7270 | defsubr (&Sprocess_buffer); | |
7271 | defsubr (&Sprocess_mark); | |
7272 | defsubr (&Sset_process_filter); | |
7273 | defsubr (&Sprocess_filter); | |
7274 | defsubr (&Sset_process_sentinel); | |
7275 | defsubr (&Sprocess_sentinel); | |
7276 | defsubr (&Sset_process_window_size); | |
7277 | defsubr (&Sset_process_inherit_coding_system_flag); | |
7278 | defsubr (&Sset_process_query_on_exit_flag); | |
7279 | defsubr (&Sprocess_query_on_exit_flag); | |
7280 | defsubr (&Sprocess_contact); | |
7281 | defsubr (&Sprocess_plist); | |
7282 | defsubr (&Sset_process_plist); | |
f388c88a EZ |
7283 | defsubr (&Sprocess_list); |
7284 | defsubr (&Sstart_process); | |
f388c88a EZ |
7285 | defsubr (&Sserial_process_configure); |
7286 | defsubr (&Smake_serial_process); | |
f388c88a EZ |
7287 | defsubr (&Sset_network_process_option); |
7288 | defsubr (&Smake_network_process); | |
7289 | defsubr (&Sformat_network_address); | |
5e617bc2 | 7290 | #if defined (HAVE_NET_IF_H) |
f388c88a EZ |
7291 | #ifdef SIOCGIFCONF |
7292 | defsubr (&Snetwork_interface_list); | |
7293 | #endif | |
5e617bc2 | 7294 | #if defined (SIOCGIFADDR) || defined (SIOCGIFHWADDR) || defined (SIOCGIFFLAGS) |
f388c88a EZ |
7295 | defsubr (&Snetwork_interface_info); |
7296 | #endif | |
5e617bc2 | 7297 | #endif /* defined (HAVE_NET_IF_H) */ |
f388c88a EZ |
7298 | #ifdef DATAGRAM_SOCKETS |
7299 | defsubr (&Sprocess_datagram_address); | |
7300 | defsubr (&Sset_process_datagram_address); | |
7301 | #endif | |
7302 | defsubr (&Saccept_process_output); | |
7303 | defsubr (&Sprocess_send_region); | |
7304 | defsubr (&Sprocess_send_string); | |
7305 | defsubr (&Sinterrupt_process); | |
7306 | defsubr (&Skill_process); | |
7307 | defsubr (&Squit_process); | |
7308 | defsubr (&Sstop_process); | |
7309 | defsubr (&Scontinue_process); | |
7310 | defsubr (&Sprocess_running_child_p); | |
7311 | defsubr (&Sprocess_send_eof); | |
7312 | defsubr (&Ssignal_process); | |
7313 | defsubr (&Swaiting_for_user_input_p); | |
7314 | defsubr (&Sprocess_type); | |
1aa8d505 SM |
7315 | defsubr (&Sinternal_default_process_sentinel); |
7316 | defsubr (&Sinternal_default_process_filter); | |
f388c88a EZ |
7317 | defsubr (&Sset_process_coding_system); |
7318 | defsubr (&Sprocess_coding_system); | |
7319 | defsubr (&Sset_process_filter_multibyte); | |
7320 | defsubr (&Sprocess_filter_multibyte_p); | |
7321 | ||
7322 | #endif /* subprocesses */ | |
7323 | ||
6720a7fb | 7324 | defsubr (&Sget_buffer_process); |
52a1b894 | 7325 | defsubr (&Sprocess_inherit_coding_system_flag); |
934e2a68 | 7326 | defsubr (&Slist_system_processes); |
a20878b6 | 7327 | defsubr (&Sprocess_attributes); |
6720a7fb | 7328 | } |