Mercurial > hg > xemacs-beta
annotate src/process.c @ 4834:b3ea9c582280
Use new cygwin_conv_path API with Cygwin 1.7 for converting names between Win32 and POSIX, UTF-8-aware, with attendant changes elsewhere
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Tue, 12 Jan 2010 01:38:04 -0600 |
| parents | aa5ed11f473b |
| children | a98ca4640147 |
| rev | line source |
|---|---|
| 428 | 1 /* Asynchronous subprocess control for XEmacs. |
| 2 Copyright (C) 1985, 1986, 1987, 1988, 1992, 1993, 1994, 1995 | |
| 3 Free Software Foundation, Inc. | |
| 4 Copyright (C) 1995 Sun Microsystems, Inc. | |
| 3025 | 5 Copyright (C) 1995, 1996, 2001, 2002, 2004, 2005 Ben Wing. |
| 428 | 6 |
| 7 This file is part of XEmacs. | |
| 8 | |
| 9 XEmacs is free software; you can redistribute it and/or modify it | |
| 10 under the terms of the GNU General Public License as published by the | |
| 11 Free Software Foundation; either version 2, or (at your option) any | |
| 12 later version. | |
| 13 | |
| 14 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 20 along with XEmacs; see the file COPYING. If not, write to | |
| 21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 22 Boston, MA 02111-1307, USA. */ | |
| 23 | |
| 814 | 24 /* This file has been Mule-ized. */ |
| 428 | 25 |
| 26 /* This file has been split into process.c and process-unix.c by | |
| 27 Kirill M. Katsnelson <kkm@kis.ru>, so please bash him and not | |
| 814 | 28 the original author(s). |
| 29 | |
| 30 Non-synch-subprocess stuff (mostly process environment) moved from | |
| 853 | 31 callproc.c, 4-3-02, Ben Wing. |
| 32 | |
| 33 callproc.c deleted entirely 5-23-02, Ben Wing. Good riddance! | |
| 34 */ | |
| 428 | 35 |
| 36 #include <config.h> | |
| 37 | |
| 38 #include "lisp.h" | |
| 39 | |
| 40 #include "buffer.h" | |
| 41 #include "commands.h" | |
| 800 | 42 #include "device.h" |
| 428 | 43 #include "events.h" |
| 800 | 44 #include "file-coding.h" |
| 428 | 45 #include "frame.h" |
| 46 #include "hash.h" | |
| 47 #include "insdel.h" | |
| 48 #include "lstream.h" | |
| 49 #include "opaque.h" | |
| 50 #include "process.h" | |
| 51 #include "procimpl.h" | |
| 816 | 52 #include "sysdep.h" |
| 428 | 53 #include "window.h" |
| 54 | |
| 55 #include "sysfile.h" | |
| 56 #include "sysproc.h" | |
| 859 | 57 #include "syssignal.h" |
| 428 | 58 #include "systime.h" |
| 59 #include "systty.h" | |
| 60 #include "syswait.h" | |
| 61 | |
| 2367 | 62 #ifdef WIN32_NATIVE |
| 63 #include "syswindows.h" | |
| 64 #endif | |
| 65 | |
| 863 | 66 Lisp_Object Qprocessp, Qprocess_live_p, Qprocess_readable_p; |
| 428 | 67 |
| 68 /* Process methods */ | |
| 69 struct process_methods the_process_methods; | |
| 70 | |
| 71 /* a process object is a network connection when its pid field a cons | |
| 72 (name of name of port we are connected to . foreign host name) */ | |
| 73 | |
| 74 /* Valid values of process->status_symbol */ | |
| 75 Lisp_Object Qrun, Qstop; | |
| 76 /* Qrun => Qopen, Qexit => Qclosed for "network connection" processes */ | |
| 77 Lisp_Object Qopen, Qclosed; | |
| 78 /* Protocol families */ | |
| 79 Lisp_Object Qtcp, Qudp; | |
| 80 | |
| 81 #ifdef HAVE_MULTICAST | |
| 82 Lisp_Object Qmulticast; /* Will be used for occasional warnings */ | |
| 83 #endif | |
| 84 | |
| 85 /* t means use pty, nil means use a pipe, | |
| 86 maybe other values to come. */ | |
| 87 Lisp_Object Vprocess_connection_type; | |
| 88 | |
| 89 /* Read comments to DEFVAR of this */ | |
| 90 int windowed_process_io; | |
| 91 | |
| 92 #ifdef PROCESS_IO_BLOCKING | |
| 93 /* List of port numbers or port names to set a blocking I/O mode. | |
| 94 Nil means set a non-blocking I/O mode [default]. */ | |
| 95 Lisp_Object network_stream_blocking_port_list; | |
| 96 #endif /* PROCESS_IO_BLOCKING */ | |
| 97 | |
| 98 /* Number of events of change of status of a process. */ | |
| 99 volatile int process_tick; | |
| 100 | |
| 101 /* Number of events for which the user or sentinel has been notified. */ | |
| 102 static int update_tick; | |
| 103 | |
| 104 /* Nonzero means delete a process right away if it exits. */ | |
| 105 int delete_exited_processes; | |
| 106 | |
| 853 | 107 /* Hash table which maps USIDs as returned by create_io_streams_cb to |
| 428 | 108 process objects. Processes are not GC-protected through this! */ |
| 109 struct hash_table *usid_to_process; | |
| 110 | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
111 /* Read-only to Lisp. See DEFUN Fprocess_list. */ |
| 428 | 112 Lisp_Object Vprocess_list; |
| 113 | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
114 /* Lisp variables; see docstrings below. */ |
| 442 | 115 Lisp_Object Vnull_device; |
| 771 | 116 Lisp_Object Vdefault_process_coding_system; |
| 853 | 117 Lisp_Object Vdefault_network_coding_system; |
| 563 | 118 Lisp_Object Qprocess_error; |
| 119 Lisp_Object Qnetwork_error; | |
| 771 | 120 Fixnum debug_process_io; |
| 814 | 121 Lisp_Object Vshell_file_name; |
| 122 Lisp_Object Vprocess_environment; | |
| 123 | |
| 124 /* Make sure egetenv() not called too soon */ | |
| 125 int env_initted; | |
| 126 | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
127 /* Internal Lisp variable. */ |
| 814 | 128 Lisp_Object Vlisp_EXEC_SUFFIXES; |
| 129 | |
| 428 | 130 |
| 131 | |
| 1204 | 132 static const struct memory_description process_description [] = { |
| 133 #define MARKED_SLOT(x) { XD_LISP_OBJECT, offsetof (Lisp_Process, x) }, | |
| 134 #include "process-slots.h" | |
| 934 | 135 { XD_END } |
| 136 }; | |
| 137 | |
| 428 | 138 static Lisp_Object |
| 444 | 139 mark_process (Lisp_Object object) |
| 428 | 140 { |
| 444 | 141 Lisp_Process *process = XPROCESS (object); |
| 1204 | 142 #define MARKED_SLOT(x) mark_object (process->x); |
| 143 #include "process-slots.h" | |
| 144 return Qnil; | |
| 428 | 145 } |
| 146 | |
| 147 static void | |
| 444 | 148 print_process (Lisp_Object object, Lisp_Object printcharfun, int escapeflag) |
| 428 | 149 { |
| 444 | 150 Lisp_Process *process = XPROCESS (object); |
| 428 | 151 |
| 152 if (print_readably) | |
| 563 | 153 printing_unreadable_object ("#<process %s>", XSTRING_DATA (process->name)); |
| 428 | 154 |
| 155 if (!escapeflag) | |
| 156 { | |
| 444 | 157 print_internal (process->name, printcharfun, 0); |
| 428 | 158 } |
| 159 else | |
| 160 { | |
| 444 | 161 int netp = network_connection_p (object); |
| 826 | 162 write_c_string (printcharfun, |
| 163 netp ? GETTEXT ("#<network connection ") : | |
| 164 GETTEXT ("#<process ")); | |
| 444 | 165 print_internal (process->name, printcharfun, 1); |
| 826 | 166 write_c_string (printcharfun, (netp ? " " : " pid ")); |
| 444 | 167 print_internal (process->pid, printcharfun, 1); |
| 800 | 168 write_fmt_string_lisp (printcharfun, " state:%S", 1, process->status_symbol); |
| 444 | 169 MAYBE_PROCMETH (print_process_data, (process, printcharfun)); |
| 826 | 170 write_c_string (printcharfun, ">"); |
| 428 | 171 } |
| 172 } | |
| 173 | |
| 174 #ifdef HAVE_WINDOW_SYSTEM | |
| 440 | 175 extern void debug_process_finalization (Lisp_Process *p); |
| 428 | 176 #endif /* HAVE_WINDOW_SYSTEM */ |
| 177 | |
| 178 static void | |
| 179 finalize_process (void *header, int for_disksave) | |
| 180 { | |
| 181 /* #### this probably needs to be tied into the tty event loop */ | |
| 182 /* #### when there is one */ | |
| 440 | 183 Lisp_Process *p = (Lisp_Process *) header; |
| 428 | 184 #ifdef HAVE_WINDOW_SYSTEM |
| 185 if (!for_disksave) | |
| 186 { | |
| 187 debug_process_finalization (p); | |
| 188 } | |
| 189 #endif /* HAVE_WINDOW_SYSTEM */ | |
| 190 | |
| 191 if (p->process_data) | |
| 192 { | |
| 193 MAYBE_PROCMETH (finalize_process_data, (p, for_disksave)); | |
| 194 if (!for_disksave) | |
| 1726 | 195 xfree (p->process_data, void *); |
| 428 | 196 } |
| 197 } | |
| 198 | |
| 934 | 199 DEFINE_LRECORD_IMPLEMENTATION ("process", process, |
| 200 0, /*dumpable-flag*/ | |
| 201 mark_process, print_process, finalize_process, | |
| 202 0, 0, process_description, Lisp_Process); | |
| 428 | 203 |
| 204 /************************************************************************/ | |
| 205 /* basic process accessors */ | |
| 206 /************************************************************************/ | |
| 207 | |
| 771 | 208 /* This function returns low-level streams, connected directly to the child |
| 209 process, rather than en/decoding streams */ | |
| 428 | 210 void |
| 853 | 211 get_process_streams (Lisp_Process *p, Lisp_Object *instr, Lisp_Object *outstr, |
| 212 Lisp_Object *errstr) | |
| 428 | 213 { |
| 214 assert (p); | |
| 853 | 215 assert (NILP (p->pipe_instream) || LSTREAMP (p->pipe_instream)); |
| 216 assert (NILP (p->pipe_outstream) || LSTREAMP (p->pipe_outstream)); | |
| 217 assert (NILP (p->pipe_errstream) || LSTREAMP (p->pipe_errstream)); | |
| 428 | 218 *instr = p->pipe_instream; |
| 219 *outstr = p->pipe_outstream; | |
| 853 | 220 *errstr = p->pipe_errstream; |
| 428 | 221 } |
| 222 | |
| 853 | 223 /* Given a USID referring to either a process's instream or errstream, |
| 224 return the associated process. */ | |
| 440 | 225 Lisp_Process * |
| 428 | 226 get_process_from_usid (USID usid) |
| 227 { | |
| 442 | 228 const void *vval; |
| 428 | 229 |
| 230 assert (usid != USID_ERROR && usid != USID_DONTHASH); | |
| 231 | |
| 442 | 232 if (gethash ((const void*)usid, usid_to_process, &vval)) |
| 428 | 233 { |
| 444 | 234 Lisp_Object process; |
| 826 | 235 process = VOID_TO_LISP (vval); |
| 444 | 236 return XPROCESS (process); |
| 428 | 237 } |
| 238 else | |
| 239 return 0; | |
| 240 } | |
| 241 | |
| 242 int | |
| 853 | 243 get_process_selected_p (Lisp_Process *p, int do_err) |
| 428 | 244 { |
| 853 | 245 return do_err ? p->err_selected : p->in_selected; |
| 428 | 246 } |
| 247 | |
| 248 void | |
| 853 | 249 set_process_selected_p (Lisp_Process *p, int in_selected, int err_selected) |
| 428 | 250 { |
| 853 | 251 p->in_selected = !!in_selected; |
| 252 p->err_selected = !!err_selected; | |
| 428 | 253 } |
| 254 | |
| 255 int | |
| 440 | 256 connected_via_filedesc_p (Lisp_Process *p) |
| 428 | 257 { |
| 258 return MAYBE_INT_PROCMETH (tooltalk_connection_p, (p)); | |
| 259 } | |
| 260 | |
| 261 #ifdef HAVE_SOCKETS | |
| 262 int | |
| 263 network_connection_p (Lisp_Object process) | |
| 264 { | |
| 265 return CONSP (XPROCESS (process)->pid); | |
| 266 } | |
| 267 #endif | |
| 268 | |
| 269 DEFUN ("processp", Fprocessp, 1, 1, 0, /* | |
| 270 Return t if OBJECT is a process. | |
| 271 */ | |
| 444 | 272 (object)) |
| 428 | 273 { |
| 444 | 274 return PROCESSP (object) ? Qt : Qnil; |
| 428 | 275 } |
| 276 | |
| 440 | 277 DEFUN ("process-live-p", Fprocess_live_p, 1, 1, 0, /* |
| 278 Return t if OBJECT is a process that is alive. | |
| 279 */ | |
| 444 | 280 (object)) |
| 440 | 281 { |
| 444 | 282 return PROCESSP (object) && PROCESS_LIVE_P (XPROCESS (object)) |
| 283 ? Qt : Qnil; | |
| 440 | 284 } |
| 285 | |
| 863 | 286 #if 0 |
| 287 /* This is a reasonable definition for this new primitive. Kyle sez: | |
| 288 | |
| 289 "The patch looks OK to me except for the creation and exporting of the | |
| 290 Fprocess_readable_p function. I don't think a new Lisp function | |
| 291 should be created until we know something actually needs it. If | |
| 292 we later want to give process-readable-p different semantics it | |
| 293 may be hard to do it and stay compatible with what we hastily | |
| 294 create today." | |
| 295 | |
| 296 He's right, not yet. Let's discuss the semantics on XEmacs Design | |
| 297 before enabling this. | |
| 298 */ | |
| 299 DEFUN ("process-readable-p", Fprocess_readable_p, 1, 1, 0, /* | |
| 300 Return t if OBJECT is a process from which input may be available. | |
| 301 */ | |
| 302 (object)) | |
| 303 { | |
| 304 return PROCESSP (object) && PROCESS_READABLE_P (XPROCESS (object)) | |
| 305 ? Qt : Qnil; | |
| 306 } | |
| 307 #endif | |
| 308 | |
| 428 | 309 DEFUN ("process-list", Fprocess_list, 0, 0, 0, /* |
| 310 Return a list of all processes. | |
| 311 */ | |
| 312 ()) | |
| 313 { | |
| 314 return Fcopy_sequence (Vprocess_list); | |
| 315 } | |
| 316 | |
| 317 DEFUN ("get-process", Fget_process, 1, 1, 0, /* | |
| 444 | 318 Return the process named PROCESS-NAME (a string), or nil if there is none. |
| 319 PROCESS-NAME may also be a process; if so, the value is that process. | |
| 428 | 320 */ |
| 444 | 321 (process_name)) |
| 428 | 322 { |
| 444 | 323 if (PROCESSP (process_name)) |
| 324 return process_name; | |
| 428 | 325 |
| 326 if (!gc_in_progress) | |
| 327 /* this only gets called during GC when emacs is going away as a result | |
| 328 of a signal or crash. */ | |
| 444 | 329 CHECK_STRING (process_name); |
| 428 | 330 |
| 444 | 331 { |
| 332 LIST_LOOP_2 (process, Vprocess_list) | |
| 333 if (internal_equal (process_name, XPROCESS (process)->name, 0)) | |
| 334 return process; | |
| 335 } | |
| 428 | 336 return Qnil; |
| 337 } | |
| 338 | |
| 339 DEFUN ("get-buffer-process", Fget_buffer_process, 1, 1, 0, /* | |
| 340 Return the (or, a) process associated with BUFFER. | |
| 341 BUFFER may be a buffer or the name of one. | |
| 342 */ | |
| 444 | 343 (buffer)) |
| 428 | 344 { |
| 444 | 345 if (NILP (buffer)) return Qnil; |
| 346 buffer = Fget_buffer (buffer); | |
| 347 if (NILP (buffer)) return Qnil; | |
| 428 | 348 |
| 444 | 349 { |
| 350 LIST_LOOP_2 (process, Vprocess_list) | |
| 351 if (EQ (XPROCESS (process)->buffer, buffer)) | |
| 352 return process; | |
| 353 } | |
| 428 | 354 return Qnil; |
| 355 } | |
| 356 | |
| 357 /* This is how commands for the user decode process arguments. It | |
| 358 accepts a process, a process name, a buffer, a buffer name, or nil. | |
| 359 Buffers denote the first process in the buffer, and nil denotes the | |
| 360 current buffer. */ | |
| 361 | |
| 362 static Lisp_Object | |
| 363 get_process (Lisp_Object name) | |
| 364 { | |
| 444 | 365 Lisp_Object buffer; |
| 428 | 366 |
| 367 #ifdef I18N3 | |
| 368 /* #### Look more closely into translating process names. */ | |
| 369 #endif | |
| 370 | |
| 371 /* This may be called during a GC from process_send_signal() from | |
| 2500 | 372 kill_buffer_processes() if emacs decides to ABORT(). */ |
| 428 | 373 if (PROCESSP (name)) |
| 374 return name; | |
| 444 | 375 else if (STRINGP (name)) |
| 428 | 376 { |
| 444 | 377 Lisp_Object object = Fget_process (name); |
| 378 if (PROCESSP (object)) | |
| 379 return object; | |
| 380 | |
| 381 buffer = Fget_buffer (name); | |
| 382 if (BUFFERP (buffer)) | |
| 383 goto have_buffer_object; | |
| 384 | |
| 563 | 385 invalid_argument ("Process does not exist", name); |
| 428 | 386 } |
| 387 else if (NILP (name)) | |
| 444 | 388 { |
| 389 buffer = Fcurrent_buffer (); | |
| 390 goto have_buffer_object; | |
| 391 } | |
| 392 else if (BUFFERP (name)) | |
| 393 { | |
| 394 Lisp_Object process; | |
| 395 buffer = name; | |
| 428 | 396 |
| 444 | 397 have_buffer_object: |
| 398 process = Fget_buffer_process (buffer); | |
| 399 if (PROCESSP (process)) | |
| 400 return process; | |
| 401 | |
| 563 | 402 invalid_argument ("Buffer has no process", buffer); |
| 428 | 403 } |
| 404 else | |
| 444 | 405 return get_process (Fsignal (Qwrong_type_argument, |
| 771 | 406 (list2 (build_msg_string ("process or buffer or nil"), |
| 444 | 407 name)))); |
| 428 | 408 } |
| 409 | |
| 410 DEFUN ("process-id", Fprocess_id, 1, 1, 0, /* | |
| 411 Return the process id of PROCESS. | |
| 412 This is the pid of the Unix process which PROCESS uses or talks to. | |
| 413 For a network connection, this value is a cons of | |
| 414 (foreign-network-port . foreign-host-name). | |
| 415 */ | |
| 444 | 416 (process)) |
| 428 | 417 { |
| 418 Lisp_Object pid; | |
| 444 | 419 CHECK_PROCESS (process); |
| 428 | 420 |
| 444 | 421 pid = XPROCESS (process)->pid; |
| 422 if (network_connection_p (process)) | |
| 428 | 423 /* return Qnil; */ |
| 424 return Fcons (Fcar (pid), Fcdr (pid)); | |
| 425 else | |
| 426 return pid; | |
| 427 } | |
| 428 | |
| 429 DEFUN ("process-name", Fprocess_name, 1, 1, 0, /* | |
| 430 Return the name of PROCESS, as a string. | |
| 431 This is the name of the program invoked in PROCESS, | |
| 432 possibly modified to make it unique among process names. | |
| 433 */ | |
| 444 | 434 (process)) |
| 428 | 435 { |
| 444 | 436 CHECK_PROCESS (process); |
| 437 return XPROCESS (process)->name; | |
| 428 | 438 } |
| 439 | |
| 440 DEFUN ("process-command", Fprocess_command, 1, 1, 0, /* | |
| 441 Return the command that was executed to start PROCESS. | |
| 442 This is a list of strings, the first string being the program executed | |
| 443 and the rest of the strings being the arguments given to it. | |
| 444 */ | |
| 444 | 445 (process)) |
| 428 | 446 { |
| 444 | 447 CHECK_PROCESS (process); |
| 448 return XPROCESS (process)->command; | |
| 428 | 449 } |
| 450 | |
| 451 | |
| 452 /************************************************************************/ | |
| 453 /* creating a process */ | |
| 454 /************************************************************************/ | |
| 455 | |
| 563 | 456 DOESNT_RETURN |
| 457 report_process_error (const char *string, Lisp_Object data) | |
| 458 { | |
| 459 report_error_with_errno (Qprocess_error, string, data); | |
| 460 } | |
| 461 | |
| 462 DOESNT_RETURN | |
| 463 report_network_error (const char *string, Lisp_Object data) | |
| 464 { | |
| 465 report_error_with_errno (Qnetwork_error, string, data); | |
| 466 } | |
| 467 | |
| 428 | 468 Lisp_Object |
| 469 make_process_internal (Lisp_Object name) | |
| 470 { | |
| 471 Lisp_Object val, name1; | |
| 472 int i; | |
| 3017 | 473 Lisp_Process *p = ALLOC_LCRECORD_TYPE (Lisp_Process, &lrecord_process); |
| 428 | 474 |
| 1204 | 475 #define MARKED_SLOT(x) p->x = Qnil; |
| 476 #include "process-slots.h" | |
| 477 | |
| 428 | 478 /* If name is already in use, modify it until it is unused. */ |
| 479 name1 = name; | |
| 480 for (i = 1; ; i++) | |
| 481 { | |
| 482 char suffix[10]; | |
| 483 Lisp_Object tem = Fget_process (name1); | |
| 484 if (NILP (tem)) | |
| 485 break; | |
| 486 sprintf (suffix, "<%d>", i); | |
| 487 name1 = concat2 (name, build_string (suffix)); | |
| 488 } | |
| 489 name = name1; | |
| 490 p->name = name; | |
| 491 | |
| 492 p->mark = Fmake_marker (); | |
| 853 | 493 p->stderr_mark = Fmake_marker (); |
| 428 | 494 p->status_symbol = Qrun; |
| 495 | |
| 496 MAYBE_PROCMETH (alloc_process_data, (p)); | |
| 497 | |
| 793 | 498 val = wrap_process (p); |
| 428 | 499 |
| 500 Vprocess_list = Fcons (val, Vprocess_list); | |
| 501 return val; | |
| 502 } | |
| 503 | |
| 504 void | |
| 853 | 505 init_process_io_handles (Lisp_Process *p, void* in, void* out, void* err, |
| 506 int flags) | |
| 428 | 507 { |
| 853 | 508 USID in_usid, err_usid; |
| 771 | 509 Lisp_Object incode, outcode; |
| 510 | |
| 853 | 511 if (flags & STREAM_NETWORK_CONNECTION) |
| 512 { | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
513 if (!LISTP (Vdefault_network_coding_system) || |
| 853 | 514 NILP (incode = (find_coding_system_for_text_file |
| 515 (Fcar (Vdefault_network_coding_system), 1))) || | |
| 516 NILP (outcode = (find_coding_system_for_text_file | |
| 517 (Fcdr (Vdefault_network_coding_system), 0)))) | |
| 518 signal_error (Qinvalid_state, | |
| 519 "Bogus value for `default-network-coding-system'", | |
| 520 Vdefault_network_coding_system); | |
| 521 } | |
| 522 else | |
| 523 { | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
524 if (!LISTP (Vdefault_process_coding_system) || |
| 853 | 525 NILP (incode = (find_coding_system_for_text_file |
| 526 (Fcar (Vdefault_process_coding_system), 1))) || | |
| 527 NILP (outcode = (find_coding_system_for_text_file | |
| 528 (Fcdr (Vdefault_process_coding_system), 0)))) | |
| 529 signal_error (Qinvalid_state, | |
| 530 "Bogus value for `default-process-coding-system'", | |
| 531 Vdefault_process_coding_system); | |
| 532 } | |
| 771 | 533 |
| 784 | 534 if (!NILP (Vcoding_system_for_read) && |
| 535 NILP (incode = (find_coding_system_for_text_file | |
| 536 (Vcoding_system_for_read, 1)))) | |
| 537 signal_error (Qinvalid_state, | |
| 538 "Bogus value for `coding-system-for-read'", | |
| 539 Vcoding_system_for_read); | |
| 540 | |
| 541 if (!NILP (Vcoding_system_for_write) && | |
| 542 NILP (outcode = (find_coding_system_for_text_file | |
| 543 (Vcoding_system_for_write, 0)))) | |
| 544 signal_error (Qinvalid_state, | |
| 545 "Bogus value for `coding-system-for-write'", | |
| 546 Vcoding_system_for_write); | |
| 547 | |
| 853 | 548 event_stream_create_io_streams (in, out, err, |
| 549 &p->pipe_instream, | |
| 550 &p->pipe_outstream, | |
| 551 &p->pipe_errstream, | |
| 552 &in_usid, &err_usid, | |
| 553 flags); | |
| 428 | 554 |
| 853 | 555 if (in_usid == USID_ERROR || err_usid == USID_ERROR) |
| 563 | 556 signal_error (Qprocess_error, "Setting up communication with subprocess", |
| 853 | 557 wrap_process (p)); |
| 428 | 558 |
| 853 | 559 if (in_usid != USID_DONTHASH) |
| 428 | 560 { |
| 444 | 561 Lisp_Object process = Qnil; |
| 793 | 562 process = wrap_process (p); |
| 853 | 563 puthash ((const void*) in_usid, LISP_TO_VOID (process), usid_to_process); |
| 428 | 564 } |
| 565 | |
| 853 | 566 if (err_usid != USID_DONTHASH) |
| 567 { | |
| 568 Lisp_Object process = Qnil; | |
| 569 process = wrap_process (p); | |
| 570 puthash ((const void*) err_usid, LISP_TO_VOID (process), | |
| 571 usid_to_process); | |
| 572 } | |
| 573 | |
| 574 MAYBE_PROCMETH (init_process_io_handles, (p, in, out, err, flags)); | |
| 428 | 575 |
| 771 | 576 p->coding_instream = |
| 800 | 577 make_coding_input_stream (XLSTREAM (p->pipe_instream), incode, |
| 578 CODING_DECODE, 0); | |
| 853 | 579 if (!NILP (p->pipe_errstream)) |
| 580 p->coding_errstream = | |
| 581 make_coding_input_stream | |
| 582 (XLSTREAM (p->pipe_errstream), incode, CODING_DECODE, 0); | |
| 771 | 583 p->coding_outstream = |
| 800 | 584 make_coding_output_stream (XLSTREAM (p->pipe_outstream), outcode, |
| 585 CODING_ENCODE, 0); | |
| 428 | 586 } |
| 587 | |
| 588 static void | |
| 589 create_process (Lisp_Object process, Lisp_Object *argv, int nargv, | |
| 853 | 590 Lisp_Object program, Lisp_Object cur_dir, |
| 591 int separate_err) | |
| 428 | 592 { |
| 440 | 593 Lisp_Process *p = XPROCESS (process); |
| 428 | 594 int pid; |
| 595 | |
| 596 /* *_create_process may change status_symbol, if the process | |
| 597 is a kind of "fire-and-forget" (no I/O, unwaitable) */ | |
| 598 p->status_symbol = Qrun; | |
| 599 p->exit_code = 0; | |
| 600 | |
| 853 | 601 pid = PROCMETH (create_process, (p, argv, nargv, program, cur_dir, |
| 602 separate_err)); | |
| 428 | 603 |
| 604 p->pid = make_int (pid); | |
| 863 | 605 if (PROCESS_READABLE_P (p)) |
| 853 | 606 event_stream_select_process (p, 1, 1); |
| 428 | 607 } |
| 608 | |
| 609 /* This function is the unwind_protect form for Fstart_process_internal. If | |
| 444 | 610 PROCESS doesn't have its pid set, then we know someone has signalled |
| 428 | 611 an error and the process wasn't started successfully, so we should |
| 612 remove it from the process list. */ | |
| 444 | 613 static void remove_process (Lisp_Object process); |
| 428 | 614 static Lisp_Object |
| 444 | 615 start_process_unwind (Lisp_Object process) |
| 428 | 616 { |
| 444 | 617 /* Was PROCESS started successfully? */ |
| 618 if (EQ (XPROCESS (process)->pid, Qnil)) | |
| 619 remove_process (process); | |
| 428 | 620 return Qnil; |
| 621 } | |
| 622 | |
| 623 DEFUN ("start-process-internal", Fstart_process_internal, 3, MANY, 0, /* | |
| 853 | 624 Internal function to start a program in a subprocess. |
| 625 Lisp callers should use `start-process' instead. | |
| 626 | |
| 627 Returns the process object for it. | |
| 428 | 628 Args are NAME BUFFER PROGRAM &rest PROGRAM-ARGS |
| 629 NAME is name for process. It is modified if necessary to make it unique. | |
| 630 BUFFER is the buffer or (buffer-name) to associate with the process. | |
| 631 Process output goes at end of that buffer, unless you specify | |
| 632 an output stream or filter function to handle the output. | |
| 633 BUFFER may be also nil, meaning that this process is not associated | |
| 853 | 634 with any buffer. |
| 635 BUFFER can also have the form (REAL-BUFFER STDERR-BUFFER); in that case, | |
| 636 REAL-BUFFER says what to do with standard output, as above, | |
| 637 while STDERR-BUFFER says what to do with standard error in the child. | |
| 638 STDERR-BUFFER may be nil (discard standard error output, unless a stderr | |
| 639 filter is set). Note that if you do not use this form at process creation, | |
| 640 stdout and stderr will be mixed in the output buffer, and this cannot be | |
| 641 changed, even by setting a stderr filter. | |
| 428 | 642 Third arg is program file name. It is searched for as in the shell. |
| 643 Remaining arguments are strings to give program as arguments. | |
| 853 | 644 |
| 645 Read and write coding systems for the process are determined from | |
| 646 `coding-system-for-read' and `coding-system-for-write' (intended as | |
| 647 overriding coding systems to be *bound* by Lisp code, not set), or | |
| 648 from `default-process-coding-system' if either or both are nil. You can | |
| 649 change the coding systems later on using `set-process-coding-system', | |
| 650 `set-process-input-coding-system', or `set-process-output-coding-system'. | |
| 651 | |
| 652 See also `set-process-filter' and `set-process-stderr-filter'. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3025
diff
changeset
|
653 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3025
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changeset
|
654 arguments: (NAME BUFFER PROGRAM &rest PROGRAM-ARGS) |
| 428 | 655 */ |
| 656 (int nargs, Lisp_Object *args)) | |
| 657 { | |
| 658 /* This function can call lisp */ | |
| 853 | 659 Lisp_Object buffer, stderr_buffer, name, program, process, current_dir; |
| 660 int separate_stderr; | |
| 428 | 661 Lisp_Object tem; |
| 910 | 662 int i; |
| 428 | 663 int speccount = specpdl_depth (); |
| 664 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 665 | |
| 666 name = args[0]; | |
| 667 buffer = args[1]; | |
| 668 program = args[2]; | |
| 669 current_dir = Qnil; | |
| 670 | |
| 671 /* Protect against various file handlers doing GCs below. */ | |
| 672 GCPRO3 (buffer, program, current_dir); | |
| 673 | |
| 853 | 674 if (CONSP (buffer)) |
| 675 { | |
| 676 if (!CONSP (XCDR (buffer))) | |
| 677 invalid_argument ("Invalid BUFFER argument to `start-process'", | |
| 678 buffer); | |
| 679 if (!NILP (XCDR (XCDR (buffer)))) | |
| 680 invalid_argument ("Invalid BUFFER argument to `start-process'", | |
| 681 buffer); | |
| 682 stderr_buffer = XCAR (XCDR (buffer)); | |
| 683 buffer = XCAR (buffer); | |
| 684 separate_stderr = 1; | |
| 685 } | |
| 686 else | |
| 687 { | |
| 688 stderr_buffer = Qnil; | |
| 689 separate_stderr = 0; | |
| 690 } | |
| 691 | |
| 428 | 692 if (!NILP (buffer)) |
| 693 buffer = Fget_buffer_create (buffer); | |
| 853 | 694 if (!NILP (stderr_buffer)) |
| 695 stderr_buffer = Fget_buffer_create (stderr_buffer); | |
| 428 | 696 |
| 697 CHECK_STRING (name); | |
| 698 CHECK_STRING (program); | |
| 910 | 699 for (i = 3; i < nargs; ++i) |
| 700 CHECK_STRING (args[i]); | |
| 428 | 701 |
| 702 /* Make sure that the child will be able to chdir to the current | |
| 502 | 703 buffer's current directory, or its unhandled equivalent. [[ We |
| 428 | 704 can't just have the child check for an error when it does the |
| 502 | 705 chdir, since it's in a vfork. ]] -- not any more, we don't use |
| 706 vfork. -ben | |
| 428 | 707 |
| 502 | 708 Note: These calls are spread out to insure that the return values |
| 709 of the calls (which may be newly-created strings) are properly | |
| 710 GC-protected. */ | |
| 428 | 711 current_dir = current_buffer->directory; |
| 502 | 712 /* If the current dir has no terminating slash, we'll get undesirable |
| 713 results, so put the slash back. */ | |
| 714 current_dir = Ffile_name_as_directory (current_dir); | |
| 428 | 715 current_dir = Funhandled_file_name_directory (current_dir); |
| 716 current_dir = expand_and_dir_to_file (current_dir, Qnil); | |
| 717 | |
| 718 #if 0 /* This loser breaks ange-ftp */ | |
| 719 /* dmoore - if you re-enable this code, you have to gcprotect | |
| 720 current_buffer through the above calls. */ | |
| 721 if (NILP (Ffile_accessible_directory_p (current_dir))) | |
| 563 | 722 signal_error (Qprocess_error, "Setting current directory", |
| 723 current_buffer->directory); | |
| 428 | 724 #endif /* 0 */ |
| 725 | |
| 726 /* If program file name is not absolute, search our path for it */ | |
| 826 | 727 if (!IS_DIRECTORY_SEP (string_byte (program, 0)) |
| 428 | 728 && !(XSTRING_LENGTH (program) > 1 |
| 826 | 729 && IS_DEVICE_SEP (string_byte (program, 1)))) |
| 428 | 730 { |
| 731 struct gcpro ngcpro1; | |
| 732 | |
| 733 tem = Qnil; | |
| 734 NGCPRO1 (tem); | |
| 735 locate_file (Vexec_path, program, Vlisp_EXEC_SUFFIXES, &tem, X_OK); | |
| 736 if (NILP (tem)) | |
| 563 | 737 signal_error (Qprocess_error, "Searching for program", program); |
| 428 | 738 program = Fexpand_file_name (tem, Qnil); |
| 739 NUNGCPRO; | |
| 740 } | |
| 741 else | |
| 742 { | |
| 442 | 743 /* we still need to canonicalize it and ensure it has the proper |
| 744 ending, e.g. .exe */ | |
| 745 struct gcpro ngcpro1; | |
| 746 | |
| 747 tem = Qnil; | |
| 748 NGCPRO1 (tem); | |
| 749 locate_file (list1 (build_string ("")), program, Vlisp_EXEC_SUFFIXES, | |
| 750 &tem, X_OK); | |
| 751 if (NILP (tem)) | |
| 563 | 752 signal_error (Qprocess_error, "Searching for program", program); |
| 442 | 753 program = tem; |
| 754 NUNGCPRO; | |
| 428 | 755 } |
| 756 | |
| 442 | 757 if (!NILP (Ffile_directory_p (program))) |
| 758 invalid_operation ("Specified program for new process is a directory", | |
| 759 program); | |
| 760 | |
| 444 | 761 process = make_process_internal (name); |
| 428 | 762 |
| 444 | 763 XPROCESS (process)->buffer = buffer; |
| 853 | 764 XPROCESS (process)->stderr_buffer = stderr_buffer; |
| 765 XPROCESS (process)->separate_stderr = separate_stderr; | |
| 814 | 766 XPROCESS (process)->command = Flist (nargs - 2, args + 2); |
| 428 | 767 |
| 768 /* Make the process marker point into the process buffer (if any). */ | |
| 769 if (!NILP (buffer)) | |
| 444 | 770 Fset_marker (XPROCESS (process)->mark, |
| 428 | 771 make_int (BUF_ZV (XBUFFER (buffer))), buffer); |
| 853 | 772 if (!NILP (stderr_buffer)) |
| 773 Fset_marker (XPROCESS (process)->stderr_mark, | |
| 774 make_int (BUF_ZV (XBUFFER (stderr_buffer))), stderr_buffer); | |
| 428 | 775 |
| 776 /* If an error occurs and we can't start the process, we want to | |
| 777 remove it from the process list. This means that each error | |
| 778 check in create_process doesn't need to call remove_process | |
| 779 itself; it's all taken care of here. */ | |
| 444 | 780 record_unwind_protect (start_process_unwind, process); |
| 428 | 781 |
| 853 | 782 create_process (process, args + 3, nargs - 3, program, current_dir, |
| 783 separate_stderr); | |
| 428 | 784 |
| 785 UNGCPRO; | |
| 771 | 786 return unbind_to_1 (speccount, process); |
| 428 | 787 } |
| 788 | |
| 789 | |
| 790 #ifdef HAVE_SOCKETS | |
| 791 | |
| 792 | |
| 793 /* #### The network support is fairly synthetical. What we actually | |
| 794 need is a single function, which supports all datagram, stream and | |
| 795 packet stream connections, arbitrary protocol families should they | |
| 796 be supported by the target system, multicast groups, in both data | |
| 797 and control rooted/nonrooted flavors, service quality etc whatever | |
| 798 is supported by the underlying network. | |
| 799 | |
| 800 It must accept a property list describing the connection. The current | |
| 801 functions must then go to lisp and provide a suitable list for the | |
| 802 generalized connection function. | |
| 803 | |
| 804 Both UNIX and Win32 support BSD sockets, and there are many extensions | |
| 805 available (Sockets 2 spec). | |
| 806 | |
| 807 A todo is define a consistent set of properties abstracting a | |
| 808 network connection. -kkm | |
| 809 */ | |
| 810 | |
| 811 | |
| 812 /* open a TCP network connection to a given HOST/SERVICE. Treated | |
| 813 exactly like a normal process when reading and writing. Only | |
| 814 differences are in status display and process deletion. A network | |
| 815 connection has no PID; you cannot signal it. All you can do is | |
| 816 deactivate and close it via delete-process */ | |
| 817 | |
| 442 | 818 DEFUN ("open-network-stream-internal", Fopen_network_stream_internal, 4, 5, |
| 819 0, /* | |
| 428 | 820 Open a TCP connection for a service to a host. |
| 444 | 821 Return a process object to represent the connection. |
| 428 | 822 Input and output work as for subprocesses; `delete-process' closes it. |
| 823 | |
| 824 NAME is name for process. It is modified if necessary to make it unique. | |
| 825 BUFFER is the buffer (or buffer-name) to associate with the process. | |
| 826 Process output goes at end of that buffer, unless you specify | |
| 827 an output stream or filter function to handle the output. | |
| 828 BUFFER may also be nil, meaning that this process is not associated | |
| 829 with any buffer. | |
| 444 | 830 Third arg HOST (a string) is the name of the host to connect to, |
| 831 or its IP address. | |
| 832 Fourth arg SERVICE is the name of the service desired (a string), | |
| 833 or an integer specifying a port number to connect to. | |
| 3025 | 834 Optional fifth arg PROTOCOL is a network protocol. Currently only `tcp' |
| 835 (Transmission Control Protocol) and `udp' (User Datagram Protocol) are | |
| 836 supported. When omitted, `tcp' is assumed. | |
| 428 | 837 |
| 442 | 838 Output via `process-send-string' and input via buffer or filter (see |
| 428 | 839 `set-process-filter') are stream-oriented. That means UDP datagrams are |
| 840 not guaranteed to be sent and received in discrete packets. (But small | |
| 841 datagrams around 500 bytes that are not truncated by `process-send-string' | |
| 444 | 842 are usually fine.) Note further that the UDP protocol does not guard |
| 843 against lost packets. | |
| 428 | 844 */ |
| 845 (name, buffer, host, service, protocol)) | |
| 846 { | |
| 847 /* This function can GC */ | |
| 444 | 848 Lisp_Object process = Qnil; |
| 428 | 849 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, ngcpro1; |
| 850 void *inch, *outch; | |
| 851 | |
| 852 GCPRO5 (name, buffer, host, service, protocol); | |
| 853 CHECK_STRING (name); | |
| 854 | |
| 771 | 855 if (NILP (protocol)) |
| 428 | 856 protocol = Qtcp; |
| 857 else | |
| 858 CHECK_SYMBOL (protocol); | |
| 859 | |
| 860 /* Since this code is inside HAVE_SOCKETS, existence of | |
| 861 open_network_stream is mandatory */ | |
| 862 PROCMETH (open_network_stream, (name, host, service, protocol, | |
| 863 &inch, &outch)); | |
| 864 | |
| 865 if (!NILP (buffer)) | |
| 866 buffer = Fget_buffer_create (buffer); | |
| 444 | 867 process = make_process_internal (name); |
| 868 NGCPRO1 (process); | |
| 428 | 869 |
| 444 | 870 XPROCESS (process)->pid = Fcons (service, host); |
| 871 XPROCESS (process)->buffer = buffer; | |
| 771 | 872 init_process_io_handles (XPROCESS (process), (void *) inch, (void *) outch, |
| 853 | 873 (void *) -1, |
| 428 | 874 STREAM_NETWORK_CONNECTION); |
| 875 | |
| 853 | 876 event_stream_select_process (XPROCESS (process), 1, 1); |
| 428 | 877 |
| 1204 | 878 NUNGCPRO; |
| 428 | 879 UNGCPRO; |
| 444 | 880 return process; |
| 428 | 881 } |
| 882 | |
| 883 #ifdef HAVE_MULTICAST | |
| 884 | |
| 885 DEFUN ("open-multicast-group-internal", Fopen_multicast_group_internal, 5, 5, 0, /* | |
| 886 Open a multicast connection on the specified dest/port/ttl. | |
| 444 | 887 Return a process object to represent the connection. |
| 428 | 888 Input and output work as for subprocesses; `delete-process' closes it. |
| 889 | |
| 890 NAME is name for process. It is modified if necessary to make it unique. | |
| 891 BUFFER is the buffer (or buffer-name) to associate with the process. | |
| 892 Process output goes at end of that buffer, unless you specify | |
| 893 an output stream or filter function to handle the output. | |
| 894 BUFFER may also be nil, meaning that this process is not associated | |
| 895 with any buffer. | |
| 896 Third, fourth and fifth args are the multicast destination group, port and ttl. | |
| 897 dest must be an internet address between 224.0.0.0 and 239.255.255.255 | |
| 898 port is a communication port like in traditional unicast | |
| 899 ttl is the time-to-live (15 for site, 63 for region and 127 for world) | |
| 900 */ | |
| 901 (name, buffer, dest, port, ttl)) | |
| 902 { | |
| 903 /* This function can GC */ | |
| 444 | 904 Lisp_Object process = Qnil; |
| 428 | 905 struct gcpro gcpro1; |
| 906 void *inch, *outch; | |
| 907 | |
| 908 CHECK_STRING (name); | |
| 909 | |
| 910 /* Since this code is inside HAVE_MULTICAST, existence of | |
| 771 | 911 open_multicast_group is mandatory */ |
| 428 | 912 PROCMETH (open_multicast_group, (name, dest, port, ttl, |
| 913 &inch, &outch)); | |
| 914 | |
| 915 if (!NILP (buffer)) | |
| 916 buffer = Fget_buffer_create (buffer); | |
| 917 | |
| 444 | 918 process = make_process_internal (name); |
| 919 GCPRO1 (process); | |
| 428 | 920 |
| 444 | 921 XPROCESS (process)->pid = Fcons (port, dest); |
| 922 XPROCESS (process)->buffer = buffer; | |
| 853 | 923 init_process_io_handles (XPROCESS (process), (void *) inch, (void *) outch, |
| 924 (void *) -1, | |
| 428 | 925 STREAM_NETWORK_CONNECTION); |
| 926 | |
| 853 | 927 event_stream_select_process (XPROCESS (process), 1, 1); |
| 428 | 928 |
| 929 UNGCPRO; | |
| 444 | 930 return process; |
| 428 | 931 } |
| 932 #endif /* HAVE_MULTICAST */ | |
| 933 | |
| 934 #endif /* HAVE_SOCKETS */ | |
| 935 | |
| 936 Lisp_Object | |
| 937 canonicalize_host_name (Lisp_Object host) | |
| 938 { | |
| 939 return PROCMETH_OR_GIVEN (canonicalize_host_name, (host), host); | |
| 940 } | |
| 941 | |
| 942 | |
| 943 DEFUN ("set-process-window-size", Fset_process_window_size, 3, 3, 0, /* | |
| 944 Tell PROCESS that it has logical window size HEIGHT and WIDTH. | |
| 945 */ | |
| 444 | 946 (process, height, width)) |
| 428 | 947 { |
| 444 | 948 CHECK_PROCESS (process); |
| 428 | 949 CHECK_NATNUM (height); |
| 950 CHECK_NATNUM (width); | |
| 951 return | |
| 444 | 952 MAYBE_INT_PROCMETH (set_window_size, |
| 953 (XPROCESS (process), XINT (height), XINT (width))) <= 0 | |
| 428 | 954 ? Qnil : Qt; |
| 955 } | |
| 956 | |
| 957 | |
| 958 /************************************************************************/ | |
| 959 /* Process I/O */ | |
| 960 /************************************************************************/ | |
| 961 | |
| 844 | 962 /* Set up PROCESS's buffer for insertion of process data at PROCESS's |
| 963 mark. | |
| 964 | |
| 965 Sets the current buffer to PROCESS's buffer, inhibits read only, | |
| 966 remembers current point, sets point to PROCESS'S mark, widens if | |
| 967 necessary. | |
| 968 */ | |
| 969 static int | |
| 853 | 970 process_setup_for_insertion (Lisp_Object process, int read_stderr) |
| 844 | 971 { |
| 972 Lisp_Process *p = XPROCESS (process); | |
| 973 int spec = specpdl_depth (); | |
| 853 | 974 Lisp_Object buffer = read_stderr ? p->stderr_buffer : p->buffer; |
| 975 Lisp_Object mark = read_stderr ? p->stderr_mark : p->mark; | |
| 976 struct buffer *buf = XBUFFER (buffer); | |
| 844 | 977 Charbpos output_pt; |
| 978 | |
| 979 if (buf != current_buffer) | |
| 980 { | |
| 981 record_unwind_protect (save_current_buffer_restore, | |
| 982 Fcurrent_buffer ()); | |
| 983 set_buffer_internal (buf); | |
| 984 } | |
| 985 | |
| 986 record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
| 987 specbind (Qinhibit_read_only, Qt); | |
| 854 | 988 |
| 844 | 989 /* Insert new output into buffer |
| 990 at the current end-of-output marker, | |
| 991 thus preserving logical ordering of input and output. */ | |
| 853 | 992 if (XMARKER (mark)->buffer) |
| 993 output_pt = marker_position (mark); | |
| 844 | 994 else |
| 995 output_pt = BUF_ZV (buf); | |
| 996 | |
| 997 /* If the output marker is outside of the visible region, save | |
| 998 the restriction and widen. */ | |
| 999 if (! (BUF_BEGV (buf) <= output_pt && output_pt <= BUF_ZV (buf))) | |
| 1000 { | |
| 1001 record_unwind_protect (save_restriction_restore, | |
| 1002 save_restriction_save (buf)); | |
| 1003 Fwiden (wrap_buffer (buf)); | |
| 1004 } | |
| 1005 | |
| 1006 BUF_SET_PT (buf, output_pt); | |
| 1007 return spec; | |
| 1008 } | |
| 1009 | |
| 428 | 1010 /* Read pending output from the process channel, |
| 1011 starting with our buffered-ahead character if we have one. | |
| 1012 Yield number of characters read. | |
| 1013 | |
| 1014 This function reads at most 1024 bytes. | |
| 1015 If you want to read all available subprocess output, | |
| 1016 you must call it repeatedly until it returns zero. */ | |
| 1017 | |
| 1018 Charcount | |
| 853 | 1019 read_process_output (Lisp_Object process, int read_stderr) |
| 428 | 1020 { |
| 1021 /* This function can GC */ | |
| 1022 Bytecount nbytes, nchars; | |
| 867 | 1023 Ibyte chars[1025]; |
| 428 | 1024 Lisp_Object outstream; |
| 444 | 1025 Lisp_Process *p = XPROCESS (process); |
| 853 | 1026 Lisp_Object filter = read_stderr ? p->stderr_filter : p->filter; |
| 1027 Lisp_Object buffer = read_stderr ? p->stderr_buffer : p->buffer; | |
| 1028 Lisp_Object mark = read_stderr ? p->stderr_mark : p->mark; | |
| 428 | 1029 |
| 1030 /* If there is a lot of output from the subprocess, the loop in | |
| 1031 execute_internal_event() might call read_process_output() more | |
| 1032 than once. If the filter that was executed from one of these | |
| 1033 calls set the filter to t, we have to stop now. Return -1 rather | |
| 1034 than 0 so execute_internal_event() doesn't close the process. | |
| 1035 Really, the loop in execute_internal_event() should check itself | |
| 1036 for a process-filter change, like in status_notify(); but the | |
| 1037 struct Lisp_Process is not exported outside of this file. */ | |
| 863 | 1038 if (!PROCESS_READABLE_P (p)) |
| 853 | 1039 { |
| 1040 errno = 0; | |
| 1041 return -1; /* already closed */ | |
| 1042 } | |
| 428 | 1043 |
| 853 | 1044 if (!NILP (filter) && (p->filter_does_read)) |
| 428 | 1045 { |
| 1046 Lisp_Object filter_result; | |
| 1047 | |
| 1048 /* Some weird FSFmacs crap here with | |
| 853 | 1049 Vdeactivate_mark and current_buffer->keymap. |
| 1050 Some FSF junk with running_asynch_code, to preserve the match | |
| 1051 data. Not necessary because we don't call process filters | |
| 1052 asynchronously (i.e. from within QUIT). */ | |
| 1053 /* Don't catch errors here; we're not in any critical code. */ | |
| 1054 filter_result = call2 (filter, process, Qnil); | |
| 428 | 1055 CHECK_INT (filter_result); |
| 1056 return XINT (filter_result); | |
| 1057 } | |
| 1058 | |
| 853 | 1059 nbytes = Lstream_read (read_stderr ? XLSTREAM (DATA_ERRSTREAM (p)) : |
| 1060 XLSTREAM (DATA_INSTREAM (p)), chars, | |
| 771 | 1061 sizeof (chars) - 1); |
| 428 | 1062 if (nbytes <= 0) return nbytes; |
| 1063 | |
| 771 | 1064 if (debug_process_io) |
| 1065 { | |
| 1066 chars[nbytes] = '\0'; | |
| 1067 stderr_out ("Read: %s\n", chars); | |
| 1068 } | |
| 1069 | |
| 1070 /* !!#### if the coding system changed as a result of reading, we | |
| 1071 need to change the output coding system accordingly. */ | |
| 428 | 1072 nchars = bytecount_to_charcount (chars, nbytes); |
| 853 | 1073 outstream = filter; |
| 428 | 1074 if (!NILP (outstream)) |
| 1075 { | |
| 853 | 1076 /* Some FSF junk with running_asynch_code, to preserve the match |
| 1077 data. Not necessary because we don't call process filters | |
| 1078 asynchronously (i.e. from within QUIT). */ | |
| 1079 /* Don't catch errors here; we're not in any critical code. */ | |
| 1080 call2 (outstream, process, make_string (chars, nbytes)); | |
| 428 | 1081 return nchars; |
| 1082 } | |
| 1083 | |
| 1084 /* If no filter, write into buffer if it isn't dead. */ | |
| 853 | 1085 if (!NILP (buffer) && BUFFER_LIVE_P (XBUFFER (buffer))) |
| 428 | 1086 { |
| 844 | 1087 struct gcpro gcpro1; |
| 853 | 1088 struct buffer *buf = XBUFFER (buffer); |
| 1089 int spec = process_setup_for_insertion (process, read_stderr); | |
| 428 | 1090 |
| 844 | 1091 GCPRO1 (process); |
| 428 | 1092 |
| 1093 #if 0 | |
| 1094 /* This screws up initial display of the window. jla */ | |
| 1095 | |
| 1096 /* Insert before markers in case we are inserting where | |
| 1097 the buffer's mark is, and the user's next command is Meta-y. */ | |
| 1098 buffer_insert_raw_string_1 (buf, -1, chars, | |
| 1099 nbytes, INSDEL_BEFORE_MARKERS); | |
| 1100 #else | |
| 1101 buffer_insert_raw_string (buf, chars, nbytes); | |
| 1102 #endif | |
| 1103 | |
| 853 | 1104 Fset_marker (mark, make_int (BUF_PT (buf)), buffer); |
| 1105 | |
| 428 | 1106 MARK_MODELINE_CHANGED; |
| 844 | 1107 unbind_to (spec); |
| 428 | 1108 UNGCPRO; |
| 1109 } | |
| 1110 return nchars; | |
| 1111 } | |
| 853 | 1112 |
| 1113 int | |
| 1114 process_has_separate_stderr (Lisp_Object process) | |
| 1115 { | |
| 1116 return XPROCESS (process)->separate_stderr; | |
| 1117 } | |
| 1118 | |
| 859 | 1119 DEFUN ("process-has-separate-stderr-p", Fprocess_has_separate_stderr_p, 1, 1, |
| 1120 0, /* | |
| 1121 Return non-nil if process has stderr separate from stdout. | |
| 1122 */ | |
| 1123 (process)) | |
| 1124 { | |
| 1125 CHECK_PROCESS (process); | |
| 1126 return process_has_separate_stderr (process) ? Qt : Qnil; | |
| 1127 } | |
| 1128 | |
| 428 | 1129 |
| 1130 /* Sending data to subprocess */ | |
| 1131 | |
| 444 | 1132 /* send some data to process PROCESS. If NONRELOCATABLE is non-NULL, it |
| 428 | 1133 specifies the address of the data. Otherwise, the data comes from the |
| 1134 object RELOCATABLE (either a string or a buffer). START and LEN | |
| 1135 specify the offset and length of the data to send. | |
| 1136 | |
| 665 | 1137 Note that START and LEN are in Charbpos's if RELOCATABLE is a buffer, |
| 428 | 1138 and in Bytecounts otherwise. */ |
| 1139 | |
| 1140 void | |
| 444 | 1141 send_process (Lisp_Object process, |
| 867 | 1142 Lisp_Object relocatable, const Ibyte *nonrelocatable, |
| 428 | 1143 int start, int len) |
| 1144 { | |
| 1145 /* This function can GC */ | |
| 1146 struct gcpro gcpro1, gcpro2; | |
| 1147 Lisp_Object lstream = Qnil; | |
| 1148 | |
| 444 | 1149 GCPRO2 (process, lstream); |
| 428 | 1150 |
| 444 | 1151 if (NILP (DATA_OUTSTREAM (XPROCESS (process)))) |
| 563 | 1152 invalid_operation ("Process not open for writing", process); |
| 428 | 1153 |
| 1154 if (nonrelocatable) | |
| 1155 lstream = | |
| 1156 make_fixed_buffer_input_stream (nonrelocatable + start, len); | |
| 1157 else if (BUFFERP (relocatable)) | |
| 1158 lstream = make_lisp_buffer_input_stream (XBUFFER (relocatable), | |
| 1159 start, start + len, 0); | |
| 1160 else | |
| 1161 lstream = make_lisp_string_input_stream (relocatable, start, len); | |
| 1162 | |
| 771 | 1163 if (debug_process_io) |
| 1164 { | |
| 1165 if (nonrelocatable) | |
| 1166 stderr_out ("Writing: %s\n", nonrelocatable); | |
| 1167 else | |
| 1168 { | |
| 1169 stderr_out ("Writing: "); | |
| 1170 print_internal (relocatable, Qexternal_debugging_output, 0); | |
| 1171 } | |
| 1172 } | |
| 1173 | |
| 444 | 1174 PROCMETH (send_process, (process, XLSTREAM (lstream))); |
| 428 | 1175 |
| 1176 UNGCPRO; | |
| 1177 Lstream_delete (XLSTREAM (lstream)); | |
| 1178 } | |
| 1179 | |
| 1180 DEFUN ("process-tty-name", Fprocess_tty_name, 1, 1, 0, /* | |
| 1181 Return the name of the terminal PROCESS uses, or nil if none. | |
| 1182 This is the terminal that the process itself reads and writes on, | |
| 1183 not the name of the pty that Emacs uses to talk with that terminal. | |
| 1184 */ | |
| 444 | 1185 (process)) |
| 428 | 1186 { |
| 444 | 1187 CHECK_PROCESS (process); |
| 1204 | 1188 return XPROCESS (process)->tty_name; |
| 428 | 1189 } |
| 1190 | |
| 1191 DEFUN ("set-process-buffer", Fset_process_buffer, 2, 2, 0, /* | |
| 1192 Set buffer associated with PROCESS to BUFFER (a buffer, or nil). | |
| 2297 | 1193 Output from PROCESS is inserted in this buffer unless PROCESS has a filter. |
| 428 | 1194 */ |
| 444 | 1195 (process, buffer)) |
| 428 | 1196 { |
| 444 | 1197 CHECK_PROCESS (process); |
| 428 | 1198 if (!NILP (buffer)) |
| 1199 CHECK_BUFFER (buffer); | |
| 444 | 1200 XPROCESS (process)->buffer = buffer; |
| 428 | 1201 return buffer; |
| 1202 } | |
| 1203 | |
| 1204 DEFUN ("process-buffer", Fprocess_buffer, 1, 1, 0, /* | |
| 1205 Return the buffer PROCESS is associated with. | |
| 2297 | 1206 Output from PROCESS is inserted in this buffer unless PROCESS has a filter. |
| 1207 Set the buffer with `set-process-buffer'. | |
| 428 | 1208 */ |
| 444 | 1209 (process)) |
| 428 | 1210 { |
| 444 | 1211 CHECK_PROCESS (process); |
| 1212 return XPROCESS (process)->buffer; | |
| 428 | 1213 } |
| 1214 | |
| 853 | 1215 DEFUN ("set-process-stderr-buffer", Fset_process_stderr_buffer, 2, 2, 0, /* |
| 2297 | 1216 Output from the stderr of PROCESS is inserted in this buffer unless |
| 1217 PROCESS has a stderr filter. | |
| 853 | 1218 Set stderr buffer associated with PROCESS to BUFFER (a buffer, or nil). |
| 1219 */ | |
| 1220 (process, buffer)) | |
| 1221 { | |
| 1222 CHECK_PROCESS (process); | |
| 1223 if (!XPROCESS (process)->separate_stderr) | |
| 1224 invalid_change ("stdout and stderr not separate", process); | |
| 1225 if (!NILP (buffer)) | |
| 1226 CHECK_BUFFER (buffer); | |
| 1227 XPROCESS (process)->stderr_buffer = buffer; | |
| 1228 return buffer; | |
| 1229 } | |
| 1230 | |
| 1231 DEFUN ("process-stderr-buffer", Fprocess_stderr_buffer, 1, 1, 0, /* | |
| 1232 Return the stderr buffer PROCESS is associated with. | |
| 2297 | 1233 Output from the stderr of PROCESS is inserted in this buffer unless PROCESS |
| 1234 has a stderr filter. Set the buffer with `set-process-stderr-buffer'. | |
| 853 | 1235 */ |
| 1236 (process)) | |
| 1237 { | |
| 1238 CHECK_PROCESS (process); | |
| 1239 if (!XPROCESS (process)->separate_stderr) | |
| 1240 invalid_change ("stdout and stderr not separate", process); | |
| 1241 return XPROCESS (process)->stderr_buffer; | |
| 1242 } | |
| 1243 | |
| 428 | 1244 DEFUN ("process-mark", Fprocess_mark, 1, 1, 0, /* |
| 1245 Return the marker for the end of the last output from PROCESS. | |
| 1246 */ | |
| 444 | 1247 (process)) |
| 428 | 1248 { |
| 444 | 1249 CHECK_PROCESS (process); |
| 1250 return XPROCESS (process)->mark; | |
| 428 | 1251 } |
| 1252 | |
| 853 | 1253 DEFUN ("process-stderr-mark", Fprocess_stderr_mark, 1, 1, 0, /* |
| 1254 Return the marker for the end of the last stderr output from PROCESS. | |
| 1255 */ | |
| 1256 (process)) | |
| 1257 { | |
| 1258 CHECK_PROCESS (process); | |
| 1259 if (!XPROCESS (process)->separate_stderr) | |
| 1260 invalid_operation ("stdout and stderr not separate", process); | |
| 1261 return XPROCESS (process)->stderr_mark; | |
| 1262 } | |
| 1263 | |
| 428 | 1264 void |
| 853 | 1265 set_process_filter (Lisp_Object process, Lisp_Object filter, |
| 1266 int filter_does_read, int set_stderr) | |
| 428 | 1267 { |
| 444 | 1268 CHECK_PROCESS (process); |
| 853 | 1269 if (set_stderr && !XPROCESS (process)->separate_stderr) |
| 1270 invalid_change ("stdout and stderr not separate", process); | |
| 863 | 1271 if (PROCESS_READABLE_P (XPROCESS (process))) |
| 853 | 1272 { |
| 1273 if (EQ (filter, Qt)) | |
| 1274 event_stream_unselect_process (XPROCESS (process), !set_stderr, | |
| 1275 set_stderr); | |
| 1276 else | |
| 1277 event_stream_select_process (XPROCESS (process), !set_stderr, | |
| 1278 set_stderr); | |
| 1279 } | |
| 428 | 1280 |
| 853 | 1281 if (set_stderr) |
| 1282 XPROCESS (process)->stderr_filter = filter; | |
| 1283 else | |
| 1284 XPROCESS (process)->filter = filter; | |
| 444 | 1285 XPROCESS (process)->filter_does_read = filter_does_read; |
| 428 | 1286 } |
| 1287 | |
| 1288 DEFUN ("set-process-filter", Fset_process_filter, 2, 2, 0, /* | |
| 1289 Give PROCESS the filter function FILTER; nil means no filter. | |
| 853 | 1290 t means stop accepting output from the process. (If process was created |
| 854 | 1291 with |
| 853 | 1292 When a process has a filter, each time it does output |
| 1293 the entire string of output is passed to the filter. | |
| 1294 The filter gets two arguments: the process and the string of output. | |
| 1295 If the process has a filter, its buffer is not used for output. | |
| 1296 */ | |
| 1297 (process, filter)) | |
| 1298 { | |
| 1299 set_process_filter (process, filter, 0, 0); | |
| 1300 return filter; | |
| 1301 } | |
| 1302 | |
| 1303 DEFUN ("set-process-stderr-filter", Fset_process_stderr_filter, 2, 2, 0, /* | |
| 1304 Give PROCESS the stderr filter function FILTER; nil means no filter. | |
| 428 | 1305 t means stop accepting output from the process. |
| 1306 When a process has a filter, each time it does output | |
| 1307 the entire string of output is passed to the filter. | |
| 1308 The filter gets two arguments: the process and the string of output. | |
| 1309 If the process has a filter, its buffer is not used for output. | |
| 1310 */ | |
| 444 | 1311 (process, filter)) |
| 428 | 1312 { |
| 853 | 1313 set_process_filter (process, filter, 0, 1); |
| 428 | 1314 return filter; |
| 1315 } | |
| 1316 | |
| 1317 DEFUN ("process-filter", Fprocess_filter, 1, 1, 0, /* | |
| 1318 Return the filter function of PROCESS; nil if none. | |
| 1319 See `set-process-filter' for more info on filter functions. | |
| 1320 */ | |
| 444 | 1321 (process)) |
| 428 | 1322 { |
| 444 | 1323 CHECK_PROCESS (process); |
| 1324 return XPROCESS (process)->filter; | |
| 428 | 1325 } |
| 1326 | |
| 853 | 1327 DEFUN ("process-stderr-filter", Fprocess_stderr_filter, 1, 1, 0, /* |
| 1328 Return the filter function of PROCESS; nil if none. | |
| 1329 See `set-process-stderr-filter' for more info on filter functions. | |
| 1330 */ | |
| 1331 (process)) | |
| 1332 { | |
| 1333 CHECK_PROCESS (process); | |
| 1334 if (!XPROCESS (process)->separate_stderr) | |
| 1335 invalid_operation ("stdout and stderr not separate", process); | |
| 1336 return XPROCESS (process)->stderr_filter; | |
| 1337 } | |
| 1338 | |
| 442 | 1339 DEFUN ("process-send-region", Fprocess_send_region, 3, 4, 0, /* |
| 1340 Send current contents of the region between START and END as input to PROCESS. | |
| 444 | 1341 PROCESS may be a process or the name of a process, or a buffer or the |
| 1342 name of a buffer, in which case the buffer's process is used. If it | |
| 1343 is nil, the current buffer's process is used. | |
| 442 | 1344 BUFFER specifies the buffer to look in; if nil, the current buffer is used. |
| 853 | 1345 If the region is more than 100 or so characters long, it may be sent in |
| 1346 several chunks. This may happen even for shorter regions. Output | |
| 444 | 1347 from processes can arrive in between chunks. |
| 428 | 1348 */ |
| 442 | 1349 (process, start, end, buffer)) |
| 428 | 1350 { |
| 1351 /* This function can GC */ | |
| 665 | 1352 Charbpos bstart, bend; |
| 442 | 1353 struct buffer *buf = decode_buffer (buffer, 0); |
| 428 | 1354 |
| 793 | 1355 buffer = wrap_buffer (buf); |
| 444 | 1356 process = get_process (process); |
| 1357 get_buffer_range_char (buf, start, end, &bstart, &bend, 0); | |
| 442 | 1358 |
| 444 | 1359 send_process (process, buffer, 0, bstart, bend - bstart); |
| 428 | 1360 return Qnil; |
| 1361 } | |
| 1362 | |
| 1363 DEFUN ("process-send-string", Fprocess_send_string, 2, 4, 0, /* | |
| 1364 Send PROCESS the contents of STRING as input. | |
| 444 | 1365 PROCESS may be a process or the name of a process, or a buffer or the |
| 1366 name of a buffer, in which case the buffer's process is used. If it | |
| 1367 is nil, the current buffer's process is used. | |
| 1368 Optional arguments START and END specify part of STRING; see `substring'. | |
| 1369 If STRING is more than 100 or so characters long, it may be sent in | |
| 1370 several chunks. This may happen even for shorter strings. Output | |
| 1371 from processes can arrive in between chunks. | |
| 428 | 1372 */ |
| 444 | 1373 (process, string, start, end)) |
| 428 | 1374 { |
| 1375 /* This function can GC */ | |
| 444 | 1376 Bytecount bstart, bend; |
| 428 | 1377 |
| 444 | 1378 process = get_process (process); |
| 428 | 1379 CHECK_STRING (string); |
| 444 | 1380 get_string_range_byte (string, start, end, &bstart, &bend, |
| 428 | 1381 GB_HISTORICAL_STRING_BEHAVIOR); |
| 1382 | |
| 444 | 1383 send_process (process, string, 0, bstart, bend - bstart); |
| 428 | 1384 return Qnil; |
| 1385 } | |
| 1386 | |
| 1387 | |
| 1388 DEFUN ("process-input-coding-system", Fprocess_input_coding_system, 1, 1, 0, /* | |
| 1389 Return PROCESS's input coding system. | |
| 1390 */ | |
| 1391 (process)) | |
| 1392 { | |
| 1393 process = get_process (process); | |
| 863 | 1394 CHECK_READABLE_PROCESS (process); |
| 771 | 1395 return (coding_stream_detected_coding_system |
| 1396 (XLSTREAM (XPROCESS (process)->coding_instream))); | |
| 428 | 1397 } |
| 1398 | |
| 1399 DEFUN ("process-output-coding-system", Fprocess_output_coding_system, 1, 1, 0, /* | |
| 1400 Return PROCESS's output coding system. | |
| 1401 */ | |
| 1402 (process)) | |
| 1403 { | |
| 1404 process = get_process (process); | |
| 440 | 1405 CHECK_LIVE_PROCESS (process); |
| 771 | 1406 return (coding_stream_coding_system |
| 1407 (XLSTREAM (XPROCESS (process)->coding_outstream))); | |
| 428 | 1408 } |
| 1409 | |
| 1410 DEFUN ("process-coding-system", Fprocess_coding_system, 1, 1, 0, /* | |
| 1411 Return a pair of coding-system for decoding and encoding of PROCESS. | |
| 1412 */ | |
| 1413 (process)) | |
| 1414 { | |
| 1415 process = get_process (process); | |
| 863 | 1416 CHECK_READABLE_PROCESS (process); |
| 771 | 1417 return Fcons (coding_stream_detected_coding_system |
| 428 | 1418 (XLSTREAM (XPROCESS (process)->coding_instream)), |
| 771 | 1419 coding_stream_coding_system |
| 428 | 1420 (XLSTREAM (XPROCESS (process)->coding_outstream))); |
| 1421 } | |
| 1422 | |
| 1423 DEFUN ("set-process-input-coding-system", Fset_process_input_coding_system, | |
| 1424 2, 2, 0, /* | |
| 1425 Set PROCESS's input coding system to CODESYS. | |
| 771 | 1426 This is used for reading data from PROCESS. |
| 428 | 1427 */ |
| 1428 (process, codesys)) | |
| 1429 { | |
| 771 | 1430 codesys = get_coding_system_for_text_file (codesys, 1); |
| 428 | 1431 process = get_process (process); |
| 863 | 1432 CHECK_READABLE_PROCESS (process); |
| 440 | 1433 |
| 771 | 1434 set_coding_stream_coding_system |
| 428 | 1435 (XLSTREAM (XPROCESS (process)->coding_instream), codesys); |
| 1436 return Qnil; | |
| 1437 } | |
| 1438 | |
| 1439 DEFUN ("set-process-output-coding-system", Fset_process_output_coding_system, | |
| 1440 2, 2, 0, /* | |
| 1441 Set PROCESS's output coding system to CODESYS. | |
| 771 | 1442 This is used for writing data to PROCESS. |
| 428 | 1443 */ |
| 1444 (process, codesys)) | |
| 1445 { | |
| 771 | 1446 codesys = get_coding_system_for_text_file (codesys, 0); |
| 428 | 1447 process = get_process (process); |
| 440 | 1448 CHECK_LIVE_PROCESS (process); |
| 1449 | |
| 771 | 1450 set_coding_stream_coding_system |
| 428 | 1451 (XLSTREAM (XPROCESS (process)->coding_outstream), codesys); |
| 1452 return Qnil; | |
| 1453 } | |
| 1454 | |
| 1455 DEFUN ("set-process-coding-system", Fset_process_coding_system, | |
| 1456 1, 3, 0, /* | |
| 1457 Set coding-systems of PROCESS to DECODING and ENCODING. | |
| 440 | 1458 DECODING will be used to decode subprocess output and ENCODING to |
| 1459 encode subprocess input. | |
| 428 | 1460 */ |
| 1461 (process, decoding, encoding)) | |
| 1462 { | |
| 1463 if (!NILP (decoding)) | |
| 1464 Fset_process_input_coding_system (process, decoding); | |
| 1465 | |
| 1466 if (!NILP (encoding)) | |
| 1467 Fset_process_output_coding_system (process, encoding); | |
| 1468 | |
| 1469 return Qnil; | |
| 1470 } | |
| 1471 | |
| 1472 | |
| 1473 /************************************************************************/ | |
| 1474 /* process status */ | |
| 1475 /************************************************************************/ | |
| 1476 | |
| 1477 static Lisp_Object | |
| 1478 exec_sentinel_unwind (Lisp_Object datum) | |
| 1479 { | |
| 853 | 1480 XPROCESS (XCAR (datum))->sentinel = XCDR (datum); |
| 1481 free_cons (datum); | |
| 428 | 1482 return Qnil; |
| 1483 } | |
| 1484 | |
| 1485 static void | |
| 444 | 1486 exec_sentinel (Lisp_Object process, Lisp_Object reason) |
| 428 | 1487 { |
| 1488 /* This function can GC */ | |
| 1489 int speccount = specpdl_depth (); | |
| 444 | 1490 Lisp_Process *p = XPROCESS (process); |
| 428 | 1491 Lisp_Object sentinel = p->sentinel; |
| 1492 | |
| 1493 if (NILP (sentinel)) | |
| 1494 return; | |
| 1495 | |
| 1496 /* Some weird FSFmacs crap here with | |
| 1497 Vdeactivate_mark and current_buffer->keymap */ | |
| 1498 | |
| 853 | 1499 /* Some FSF junk with running_asynch_code, to preserve the match |
| 1500 data. Not necessary because we don't call process filters | |
| 1501 asynchronously (i.e. from within QUIT). */ | |
| 1502 | |
| 428 | 1503 /* Zilch the sentinel while it's running, to avoid recursive invocations; |
| 853 | 1504 assure that it gets restored no matter how the sentinel exits. |
| 1505 | |
| 1506 (#### Why is this necessary? Probably another relic of asynchronous | |
| 1507 calling of process filters/sentinels.) */ | |
| 428 | 1508 p->sentinel = Qnil; |
| 853 | 1509 record_unwind_protect (exec_sentinel_unwind, |
| 1510 noseeum_cons (process, sentinel)); | |
| 1511 /* Don't catch errors here; we're not in any critical code. */ | |
| 1512 call2 (sentinel, process, reason); | |
| 771 | 1513 unbind_to (speccount); |
| 428 | 1514 } |
| 1515 | |
| 1516 DEFUN ("set-process-sentinel", Fset_process_sentinel, 2, 2, 0, /* | |
| 1517 Give PROCESS the sentinel SENTINEL; nil for none. | |
| 1518 The sentinel is called as a function when the process changes state. | |
| 1519 It gets two arguments: the process, and a string describing the change. | |
| 1520 */ | |
| 444 | 1521 (process, sentinel)) |
| 428 | 1522 { |
| 444 | 1523 CHECK_PROCESS (process); |
| 1524 XPROCESS (process)->sentinel = sentinel; | |
| 428 | 1525 return sentinel; |
| 1526 } | |
| 1527 | |
| 1528 DEFUN ("process-sentinel", Fprocess_sentinel, 1, 1, 0, /* | |
| 1529 Return the sentinel of PROCESS; nil if none. | |
| 1530 See `set-process-sentinel' for more info on sentinels. | |
| 1531 */ | |
| 444 | 1532 (process)) |
| 428 | 1533 { |
| 444 | 1534 CHECK_PROCESS (process); |
| 1535 return XPROCESS (process)->sentinel; | |
| 428 | 1536 } |
| 1537 | |
| 1538 | |
| 442 | 1539 const char * |
| 428 | 1540 signal_name (int signum) |
| 1541 { | |
| 1542 if (signum >= 0 && signum < NSIG) | |
| 442 | 1543 return (const char *) sys_siglist[signum]; |
| 428 | 1544 |
| 442 | 1545 return (const char *) GETTEXT ("unknown signal"); |
| 428 | 1546 } |
| 1547 | |
| 1548 void | |
| 1549 update_process_status (Lisp_Object p, | |
| 1550 Lisp_Object status_symbol, | |
| 1551 int exit_code, | |
| 1552 int core_dumped) | |
| 1553 { | |
| 1554 XPROCESS (p)->tick++; | |
| 1555 process_tick++; | |
| 1556 XPROCESS (p)->status_symbol = status_symbol; | |
| 1557 XPROCESS (p)->exit_code = exit_code; | |
| 1558 XPROCESS (p)->core_dumped = core_dumped; | |
| 1559 } | |
| 1560 | |
| 1561 /* Return a string describing a process status list. */ | |
| 1562 | |
| 1563 static Lisp_Object | |
| 440 | 1564 status_message (Lisp_Process *p) |
| 428 | 1565 { |
| 1566 Lisp_Object symbol = p->status_symbol; | |
| 1567 int code = p->exit_code; | |
| 1568 int coredump = p->core_dumped; | |
| 1569 Lisp_Object string, string2; | |
| 1570 | |
| 1571 if (EQ (symbol, Qsignal) || EQ (symbol, Qstop)) | |
| 1572 { | |
| 1573 string = build_string (signal_name (code)); | |
| 1574 if (coredump) | |
| 771 | 1575 string2 = build_msg_string (" (core dumped)\n"); |
| 428 | 1576 else |
| 1577 string2 = build_string ("\n"); | |
| 793 | 1578 set_string_char (string, 0, |
| 867 | 1579 DOWNCASE (0, string_ichar (string, 0))); |
| 428 | 1580 return concat2 (string, string2); |
| 1581 } | |
| 1582 else if (EQ (symbol, Qexit)) | |
| 1583 { | |
| 1584 if (code == 0) | |
| 771 | 1585 return build_msg_string ("finished\n"); |
| 428 | 1586 string = Fnumber_to_string (make_int (code)); |
| 1587 if (coredump) | |
| 771 | 1588 string2 = build_msg_string (" (core dumped)\n"); |
| 428 | 1589 else |
| 1590 string2 = build_string ("\n"); | |
| 771 | 1591 return concat2 (build_msg_string ("exited abnormally with code "), |
| 428 | 1592 concat2 (string, string2)); |
| 1593 } | |
| 1594 else | |
| 1595 return Fcopy_sequence (Fsymbol_name (symbol)); | |
| 1596 } | |
| 1597 | |
| 1598 /* Tell status_notify() to check for terminated processes. We do this | |
| 1599 because on some systems we sometimes miss SIGCHLD calls. (Not sure | |
| 853 | 1600 why.) This is also used under Mswin. */ |
| 428 | 1601 |
| 1602 void | |
| 1603 kick_status_notify (void) | |
| 1604 { | |
| 1605 process_tick++; | |
| 1606 } | |
| 1607 | |
| 1608 | |
| 1609 /* Report all recent events of a change in process status | |
| 1610 (either run the sentinel or output a message). | |
| 1611 This is done while Emacs is waiting for keyboard input. */ | |
| 1612 | |
| 1613 void | |
| 1614 status_notify (void) | |
| 1615 { | |
| 1616 /* This function can GC */ | |
| 1617 Lisp_Object tail = Qnil; | |
| 1618 Lisp_Object symbol = Qnil; | |
| 1619 Lisp_Object msg = Qnil; | |
| 1620 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 1621 /* process_tick is volatile, so we have to remember it now. | |
| 444 | 1622 Otherwise, we get a race condition if SIGCHLD happens during |
| 428 | 1623 this function. |
| 1624 | |
| 1625 (Actually, this is not the case anymore. The code to | |
| 1626 update the process structures has been moved out of the | |
| 1627 SIGCHLD handler. But for the moment I'm leaving this | |
| 1628 stuff in -- it can't hurt.) */ | |
| 1629 int temp_process_tick; | |
| 1630 | |
| 1631 MAYBE_PROCMETH (reap_exited_processes, ()); | |
| 1632 | |
| 1633 temp_process_tick = process_tick; | |
| 1634 | |
| 1635 if (update_tick == temp_process_tick) | |
| 1636 return; | |
| 1637 | |
| 1638 /* We need to gcpro tail; if read_process_output calls a filter | |
| 1639 which deletes a process and removes the cons to which tail points | |
| 1640 from Vprocess_alist, and then causes a GC, tail is an unprotected | |
| 1641 reference. */ | |
| 1642 GCPRO3 (tail, symbol, msg); | |
| 1643 | |
| 1644 for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail)) | |
| 1645 { | |
| 444 | 1646 Lisp_Object process = XCAR (tail); |
| 1647 Lisp_Process *p = XPROCESS (process); | |
| 428 | 1648 /* p->tick is also volatile. Same thing as above applies. */ |
| 1649 int this_process_tick; | |
| 1650 | |
| 1651 /* #### extra check for terminated processes, in case a SIGCHLD | |
| 1652 got missed (this seems to happen sometimes, I'm not sure why). | |
| 1653 */ | |
| 1654 if (INTP (p->pid)) | |
| 1655 MAYBE_PROCMETH (update_status_if_terminated, (p)); | |
| 1656 | |
| 1657 this_process_tick = p->tick; | |
| 1658 if (this_process_tick != p->update_tick) | |
| 1659 { | |
| 1660 p->update_tick = this_process_tick; | |
| 1661 | |
| 1662 /* If process is still active, read any output that remains. */ | |
| 1663 while (!EQ (p->filter, Qt) | |
| 853 | 1664 && read_process_output (process, 0) > 0) |
| 1665 ; | |
| 1666 while (p->separate_stderr && !EQ (p->stderr_filter, Qt) | |
| 1667 && read_process_output (process, 1) > 0) | |
| 428 | 1668 ; |
| 1669 | |
| 1670 /* Get the text to use for the message. */ | |
| 1671 msg = status_message (p); | |
| 1672 | |
| 1673 /* If process is terminated, deactivate it or delete it. */ | |
| 1674 symbol = p->status_symbol; | |
| 1675 | |
| 1676 if (EQ (symbol, Qsignal) | |
| 1677 || EQ (symbol, Qexit)) | |
| 1678 { | |
| 1679 if (delete_exited_processes) | |
| 444 | 1680 remove_process (process); |
| 428 | 1681 else |
| 444 | 1682 deactivate_process (process); |
| 428 | 1683 } |
| 1684 | |
| 1685 /* Now output the message suitably. */ | |
| 1686 if (!NILP (p->sentinel)) | |
| 444 | 1687 exec_sentinel (process, msg); |
| 428 | 1688 /* Don't bother with a message in the buffer |
| 1689 when a process becomes runnable. */ | |
| 844 | 1690 else if (!EQ (symbol, Qrun) && !NILP (p->buffer) && |
| 1691 /* Avoid error if buffer is deleted | |
| 1692 (probably that's why the process is dead, too) */ | |
| 1693 BUFFER_LIVE_P (XBUFFER (p->buffer))) | |
| 428 | 1694 { |
| 844 | 1695 struct gcpro ngcpro1; |
| 853 | 1696 int spec = process_setup_for_insertion (process, 0); |
| 428 | 1697 |
| 844 | 1698 NGCPRO1 (process); |
| 428 | 1699 buffer_insert_c_string (current_buffer, "\nProcess "); |
| 1700 Finsert (1, &p->name); | |
| 1701 buffer_insert_c_string (current_buffer, " "); | |
| 1702 Finsert (1, &msg); | |
| 1703 Fset_marker (p->mark, make_int (BUF_PT (current_buffer)), | |
| 1704 p->buffer); | |
| 1705 | |
| 844 | 1706 unbind_to (spec); |
| 428 | 1707 NUNGCPRO; |
| 1708 } | |
| 1709 } | |
| 1710 } /* end for */ | |
| 1711 | |
| 1712 /* in case buffers use %s in modeline-format */ | |
| 1713 MARK_MODELINE_CHANGED; | |
| 1714 redisplay (); | |
| 1715 | |
| 1716 update_tick = temp_process_tick; | |
| 1717 | |
| 1718 UNGCPRO; | |
| 1719 } | |
| 1720 | |
| 1721 DEFUN ("process-status", Fprocess_status, 1, 1, 0, /* | |
| 1722 Return the status of PROCESS. | |
| 1723 This is a symbol, one of these: | |
| 1724 | |
| 1725 run -- for a process that is running. | |
| 1726 stop -- for a process stopped but continuable. | |
| 1727 exit -- for a process that has exited. | |
| 1728 signal -- for a process that has got a fatal signal. | |
| 1729 open -- for a network stream connection that is open. | |
| 1730 closed -- for a network stream connection that is closed. | |
| 1731 nil -- if arg is a process name and no such process exists. | |
| 1732 | |
| 1733 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 1734 nil, indicating the current buffer's process. | |
| 1735 */ | |
| 444 | 1736 (process)) |
| 428 | 1737 { |
| 1738 Lisp_Object status_symbol; | |
| 1739 | |
| 444 | 1740 if (STRINGP (process)) |
| 1741 process = Fget_process (process); | |
| 428 | 1742 else |
| 444 | 1743 process = get_process (process); |
| 428 | 1744 |
| 444 | 1745 if (NILP (process)) |
| 428 | 1746 return Qnil; |
| 1747 | |
| 444 | 1748 status_symbol = XPROCESS (process)->status_symbol; |
| 1749 if (network_connection_p (process)) | |
| 428 | 1750 { |
| 1751 if (EQ (status_symbol, Qrun)) | |
| 1752 status_symbol = Qopen; | |
| 1753 else if (EQ (status_symbol, Qexit)) | |
| 1754 status_symbol = Qclosed; | |
| 1755 } | |
| 1756 return status_symbol; | |
| 1757 } | |
| 1758 | |
| 1759 DEFUN ("process-exit-status", Fprocess_exit_status, 1, 1, 0, /* | |
| 1760 Return the exit status of PROCESS or the signal number that killed it. | |
| 1761 If PROCESS has not yet exited or died, return 0. | |
| 1762 */ | |
| 444 | 1763 (process)) |
| 428 | 1764 { |
| 444 | 1765 CHECK_PROCESS (process); |
| 1766 return make_int (XPROCESS (process)->exit_code); | |
| 428 | 1767 } |
| 1768 | |
| 1769 | |
| 1770 | |
| 442 | 1771 static int |
| 1772 decode_signal (Lisp_Object signal_) | |
| 428 | 1773 { |
| 442 | 1774 if (INTP (signal_)) |
| 1775 return XINT (signal_); | |
| 428 | 1776 else |
| 1777 { | |
| 867 | 1778 Ibyte *name; |
| 428 | 1779 |
| 442 | 1780 CHECK_SYMBOL (signal_); |
| 793 | 1781 name = XSTRING_DATA (XSYMBOL (signal_)->name); |
| 428 | 1782 |
| 793 | 1783 #define handle_signal(sym) do { \ |
| 2367 | 1784 if (!qxestrcmp_ascii ( name, #sym)) \ |
| 793 | 1785 return sym; \ |
| 442 | 1786 } while (0) |
| 428 | 1787 |
| 1788 handle_signal (SIGINT); /* ANSI */ | |
| 1789 handle_signal (SIGILL); /* ANSI */ | |
| 1790 handle_signal (SIGABRT); /* ANSI */ | |
| 1791 handle_signal (SIGFPE); /* ANSI */ | |
| 1792 handle_signal (SIGSEGV); /* ANSI */ | |
| 1793 handle_signal (SIGTERM); /* ANSI */ | |
| 1794 | |
| 1795 #ifdef SIGHUP | |
| 1796 handle_signal (SIGHUP); /* POSIX */ | |
| 1797 #endif | |
| 1798 #ifdef SIGQUIT | |
| 1799 handle_signal (SIGQUIT); /* POSIX */ | |
| 1800 #endif | |
| 1801 #ifdef SIGTRAP | |
| 1802 handle_signal (SIGTRAP); /* POSIX */ | |
| 1803 #endif | |
| 1804 #ifdef SIGKILL | |
| 1805 handle_signal (SIGKILL); /* POSIX */ | |
| 1806 #endif | |
| 1807 #ifdef SIGUSR1 | |
| 1808 handle_signal (SIGUSR1); /* POSIX */ | |
| 1809 #endif | |
| 1810 #ifdef SIGUSR2 | |
| 1811 handle_signal (SIGUSR2); /* POSIX */ | |
| 1812 #endif | |
| 1813 #ifdef SIGPIPE | |
| 1814 handle_signal (SIGPIPE); /* POSIX */ | |
| 1815 #endif | |
| 1816 #ifdef SIGALRM | |
| 1817 handle_signal (SIGALRM); /* POSIX */ | |
| 1818 #endif | |
| 1819 #ifdef SIGCHLD | |
| 1820 handle_signal (SIGCHLD); /* POSIX */ | |
| 1821 #endif | |
| 1822 #ifdef SIGCONT | |
| 1823 handle_signal (SIGCONT); /* POSIX */ | |
| 1824 #endif | |
| 1825 #ifdef SIGSTOP | |
| 1826 handle_signal (SIGSTOP); /* POSIX */ | |
| 1827 #endif | |
| 1828 #ifdef SIGTSTP | |
| 1829 handle_signal (SIGTSTP); /* POSIX */ | |
| 1830 #endif | |
| 1831 #ifdef SIGTTIN | |
| 1832 handle_signal (SIGTTIN); /* POSIX */ | |
| 1833 #endif | |
| 1834 #ifdef SIGTTOU | |
| 1835 handle_signal (SIGTTOU); /* POSIX */ | |
| 1836 #endif | |
| 1837 | |
| 1838 #ifdef SIGBUS | |
| 1839 handle_signal (SIGBUS); /* XPG5 */ | |
| 1840 #endif | |
| 1841 #ifdef SIGPOLL | |
| 1842 handle_signal (SIGPOLL); /* XPG5 */ | |
| 1843 #endif | |
| 1844 #ifdef SIGPROF | |
| 1845 handle_signal (SIGPROF); /* XPG5 */ | |
| 1846 #endif | |
| 1847 #ifdef SIGSYS | |
| 1848 handle_signal (SIGSYS); /* XPG5 */ | |
| 1849 #endif | |
| 1850 #ifdef SIGURG | |
| 1851 handle_signal (SIGURG); /* XPG5 */ | |
| 1852 #endif | |
| 1853 #ifdef SIGXCPU | |
| 1854 handle_signal (SIGXCPU); /* XPG5 */ | |
| 1855 #endif | |
| 1856 #ifdef SIGXFSZ | |
| 1857 handle_signal (SIGXFSZ); /* XPG5 */ | |
| 1858 #endif | |
| 1859 #ifdef SIGVTALRM | |
| 1860 handle_signal (SIGVTALRM); /* XPG5 */ | |
| 1861 #endif | |
| 1862 | |
| 1863 #ifdef SIGIO | |
| 1864 handle_signal (SIGIO); /* BSD 4.2 */ | |
| 1865 #endif | |
| 1866 #ifdef SIGWINCH | |
| 1867 handle_signal (SIGWINCH); /* BSD 4.3 */ | |
| 1868 #endif | |
| 1869 | |
| 1870 #ifdef SIGEMT | |
| 1871 handle_signal (SIGEMT); | |
| 1872 #endif | |
| 1873 #ifdef SIGINFO | |
| 1874 handle_signal (SIGINFO); | |
| 1875 #endif | |
| 1876 #ifdef SIGHWE | |
| 1877 handle_signal (SIGHWE); | |
| 1878 #endif | |
| 1879 #ifdef SIGPRE | |
| 1880 handle_signal (SIGPRE); | |
| 1881 #endif | |
| 1882 #ifdef SIGUME | |
| 1883 handle_signal (SIGUME); | |
| 1884 #endif | |
| 1885 #ifdef SIGDLK | |
| 1886 handle_signal (SIGDLK); | |
| 1887 #endif | |
| 1888 #ifdef SIGCPULIM | |
| 1889 handle_signal (SIGCPULIM); | |
| 1890 #endif | |
| 1891 #ifdef SIGIOT | |
| 1892 handle_signal (SIGIOT); | |
| 1893 #endif | |
| 1894 #ifdef SIGLOST | |
| 1895 handle_signal (SIGLOST); | |
| 1896 #endif | |
| 1897 #ifdef SIGSTKFLT | |
| 1898 handle_signal (SIGSTKFLT); | |
| 1899 #endif | |
| 1900 #ifdef SIGUNUSED | |
| 1901 handle_signal (SIGUNUSED); | |
| 1902 #endif | |
| 1903 #ifdef SIGDANGER | |
| 1904 handle_signal (SIGDANGER); /* AIX */ | |
| 1905 #endif | |
| 1906 #ifdef SIGMSG | |
| 1907 handle_signal (SIGMSG); | |
| 1908 #endif | |
| 1909 #ifdef SIGSOUND | |
| 1910 handle_signal (SIGSOUND); | |
| 1911 #endif | |
| 1912 #ifdef SIGRETRACT | |
| 1913 handle_signal (SIGRETRACT); | |
| 1914 #endif | |
| 1915 #ifdef SIGGRANT | |
| 1916 handle_signal (SIGGRANT); | |
| 1917 #endif | |
| 1918 #ifdef SIGPWR | |
| 1919 handle_signal (SIGPWR); | |
| 1920 #endif | |
| 1921 | |
| 1922 #undef handle_signal | |
| 1923 | |
| 563 | 1924 invalid_constant ("Undefined signal name", signal_); |
| 1204 | 1925 RETURN_NOT_REACHED (0); |
| 442 | 1926 } |
| 1927 } | |
| 1928 | |
| 1929 /* Send signal number SIGNO to PROCESS. | |
| 1930 CURRENT-GROUP non-nil means send signal to the current | |
| 1931 foreground process group of the process's controlling terminal rather | |
| 1932 than to the process's own process group. | |
| 1933 This is used for various commands in shell mode. | |
| 1934 If NOMSG is zero, insert signal-announcements into process's buffers | |
| 1935 right away. | |
| 1936 | |
| 1937 If we can, we try to signal PROCESS by sending control characters | |
| 1938 down the pty. This allows us to signal inferiors who have changed | |
| 1939 their uid, for which kill() would return an EPERM error, or to | |
| 1940 processes running on another computer through a remote login. */ | |
| 1941 | |
| 1942 static void | |
| 1943 process_send_signal (Lisp_Object process, int signo, | |
| 1944 int current_group, int nomsg) | |
| 1945 { | |
| 1946 /* This function can GC */ | |
| 444 | 1947 process = get_process (process); |
| 442 | 1948 |
| 444 | 1949 if (network_connection_p (process)) |
| 563 | 1950 invalid_operation ("Network connection is not a subprocess", process); |
| 444 | 1951 CHECK_LIVE_PROCESS (process); |
| 442 | 1952 |
| 444 | 1953 MAYBE_PROCMETH (kill_child_process, (process, signo, current_group, nomsg)); |
| 442 | 1954 } |
| 1955 | |
| 1956 DEFUN ("process-send-signal", Fprocess_send_signal, 1, 3, 0, /* | |
| 1957 Send signal SIGNAL to process PROCESS. | |
| 1958 SIGNAL may be an integer, or a symbol naming a signal, like `SIGSEGV'. | |
| 1959 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 1960 nil, indicating the current buffer's process. | |
| 1961 Third arg CURRENT-GROUP non-nil means send signal to the current | |
| 1962 foreground process group of the process's controlling terminal rather | |
| 1963 than to the process's own process group. | |
| 1964 If the process is a shell that supports job control, this means | |
| 1965 send the signal to the current subjob rather than the shell. | |
| 1966 */ | |
| 1967 (signal_, process, current_group)) | |
| 1968 { | |
| 1969 /* This function can GC */ | |
| 1970 process_send_signal (process, decode_signal (signal_), | |
| 1971 !NILP (current_group), 0); | |
| 1972 return process; | |
| 1973 } | |
| 1974 | |
| 1975 DEFUN ("interrupt-process", Finterrupt_process, 0, 2, 0, /* | |
| 1976 Interrupt process PROCESS. | |
| 1977 See function `process-send-signal' for more details on usage. | |
| 1978 */ | |
| 1979 (process, current_group)) | |
| 1980 { | |
| 1981 /* This function can GC */ | |
| 1982 process_send_signal (process, SIGINT, !NILP (current_group), 0); | |
| 1983 return process; | |
| 1984 } | |
| 1985 | |
| 1986 DEFUN ("kill-process", Fkill_process, 0, 2, 0, /* | |
| 1987 Kill process PROCESS. | |
| 1988 See function `process-send-signal' for more details on usage. | |
| 1989 */ | |
| 1990 (process, current_group)) | |
| 1991 { | |
| 1992 /* This function can GC */ | |
| 1993 #ifdef SIGKILL | |
| 1994 process_send_signal (process, SIGKILL, !NILP (current_group), 0); | |
| 1995 #else | |
| 563 | 1996 signal_error (Qunimplemented, |
| 1997 "kill-process: Not supported on this system", | |
| 1998 Qunbound); | |
| 442 | 1999 #endif |
| 2000 return process; | |
| 2001 } | |
| 2002 | |
| 2003 DEFUN ("quit-process", Fquit_process, 0, 2, 0, /* | |
| 2004 Send QUIT signal to process PROCESS. | |
| 2005 See function `process-send-signal' for more details on usage. | |
| 2006 */ | |
| 2007 (process, current_group)) | |
| 2008 { | |
| 2009 /* This function can GC */ | |
| 2010 #ifdef SIGQUIT | |
| 2011 process_send_signal (process, SIGQUIT, !NILP (current_group), 0); | |
| 2012 #else | |
| 563 | 2013 signal_error (Qunimplemented, |
| 2014 "quit-process: Not supported on this system", | |
| 2015 Qunbound); | |
| 442 | 2016 #endif |
| 2017 return process; | |
| 2018 } | |
| 2019 | |
| 2020 DEFUN ("stop-process", Fstop_process, 0, 2, 0, /* | |
| 2021 Stop process PROCESS. | |
| 2022 See function `process-send-signal' for more details on usage. | |
| 2023 */ | |
| 2024 (process, current_group)) | |
| 2025 { | |
| 2026 /* This function can GC */ | |
| 2027 #ifdef SIGTSTP | |
| 2028 process_send_signal (process, SIGTSTP, !NILP (current_group), 0); | |
| 2029 #else | |
| 563 | 2030 signal_error (Qunimplemented, |
| 2031 "stop-process: Not supported on this system", | |
| 2032 Qunbound); | |
| 442 | 2033 #endif |
| 2034 return process; | |
| 2035 } | |
| 2036 | |
| 2037 DEFUN ("continue-process", Fcontinue_process, 0, 2, 0, /* | |
| 2038 Continue process PROCESS. | |
| 2039 See function `process-send-signal' for more details on usage. | |
| 2040 */ | |
| 2041 (process, current_group)) | |
| 2042 { | |
| 2043 /* This function can GC */ | |
| 2044 #ifdef SIGCONT | |
| 2045 process_send_signal (process, SIGCONT, !NILP (current_group), 0); | |
| 2046 #else | |
| 563 | 2047 signal_error (Qunimplemented, |
| 2048 "continue-process: Not supported on this system", | |
| 2049 Qunbound); | |
| 442 | 2050 #endif |
| 2051 return process; | |
| 2052 } | |
| 2053 | |
| 2054 DEFUN ("signal-process", Fsignal_process, 2, 2, | |
| 2055 "nProcess number: \nnSignal code: ", /* | |
| 2056 Send the process with process id PID the signal with code SIGNAL. | |
| 2057 PID must be an integer. The process need not be a child of this Emacs. | |
| 2058 SIGNAL may be an integer, or a symbol naming a signal, like `SIGSEGV'. | |
| 2059 */ | |
| 2060 (pid, signal_)) | |
| 2061 { | |
| 2062 CHECK_INT (pid); | |
| 2063 | |
| 428 | 2064 return make_int (PROCMETH_OR_GIVEN (kill_process_by_pid, |
| 442 | 2065 (XINT (pid), decode_signal (signal_)), |
| 2066 -1)); | |
| 428 | 2067 } |
| 2068 | |
| 2069 DEFUN ("process-send-eof", Fprocess_send_eof, 0, 1, 0, /* | |
| 2070 Make PROCESS see end-of-file in its input. | |
| 2071 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 2072 nil, indicating the current buffer's process. | |
| 2073 If PROCESS is a network connection, or is a process communicating | |
| 2074 through a pipe (as opposed to a pty), then you cannot send any more | |
| 2075 text to PROCESS after you call this function. | |
| 2076 */ | |
| 2077 (process)) | |
| 2078 { | |
| 2079 /* This function can GC */ | |
| 444 | 2080 process = get_process (process); |
| 428 | 2081 |
| 2082 /* Make sure the process is really alive. */ | |
| 444 | 2083 if (! EQ (XPROCESS (process)->status_symbol, Qrun)) |
| 563 | 2084 invalid_operation ("Process not running", process); |
| 428 | 2085 |
| 444 | 2086 if (!MAYBE_INT_PROCMETH (process_send_eof, (process))) |
| 428 | 2087 { |
| 444 | 2088 if (!NILP (DATA_OUTSTREAM (XPROCESS (process)))) |
| 428 | 2089 { |
| 853 | 2090 USID humpty, dumpty; |
| 444 | 2091 Lstream_close (XLSTREAM (DATA_OUTSTREAM (XPROCESS (process)))); |
| 853 | 2092 event_stream_delete_io_streams (Qnil, |
| 2093 XPROCESS (process)->pipe_outstream, | |
| 2094 Qnil, &humpty, &dumpty); | |
| 444 | 2095 XPROCESS (process)->pipe_outstream = Qnil; |
| 2096 XPROCESS (process)->coding_outstream = Qnil; | |
| 428 | 2097 } |
| 2098 } | |
| 2099 | |
| 2100 return process; | |
| 2101 } | |
| 2102 | |
| 2103 | |
| 2104 /************************************************************************/ | |
| 2105 /* deleting a process */ | |
| 2106 /************************************************************************/ | |
| 2107 | |
| 2108 void | |
| 444 | 2109 deactivate_process (Lisp_Object process) |
| 428 | 2110 { |
| 444 | 2111 Lisp_Process *p = XPROCESS (process); |
| 853 | 2112 USID in_usid, err_usid; |
| 428 | 2113 |
| 2114 /* It's possible that we got as far in the process-creation | |
| 2115 process as creating the descriptors but didn't get so | |
| 2116 far as selecting the process for input. In this | |
| 2117 case, p->pid is nil: p->pid is set at the same time that | |
| 2118 the process is selected for input. */ | |
| 2119 /* #### The comment does not look correct. event_stream_unselect_process | |
| 853 | 2120 is guarded by process->*_selected, so this is not a problem. - kkm*/ |
| 428 | 2121 /* Must call this before setting the streams to nil */ |
| 853 | 2122 event_stream_unselect_process (p, 1, 1); |
| 428 | 2123 |
| 2124 if (!NILP (DATA_OUTSTREAM (p))) | |
| 2125 Lstream_close (XLSTREAM (DATA_OUTSTREAM (p))); | |
| 2126 if (!NILP (DATA_INSTREAM (p))) | |
| 2127 Lstream_close (XLSTREAM (DATA_INSTREAM (p))); | |
| 853 | 2128 if (!NILP (DATA_ERRSTREAM (p))) |
| 2129 Lstream_close (XLSTREAM (DATA_ERRSTREAM (p))); | |
| 428 | 2130 |
| 2131 /* Provide minimal implementation for deactivate_process | |
| 2132 if there's no process-specific one */ | |
| 2133 if (HAS_PROCMETH_P (deactivate_process)) | |
| 853 | 2134 PROCMETH (deactivate_process, (p, &in_usid, &err_usid)); |
| 428 | 2135 else |
| 853 | 2136 event_stream_delete_io_streams (p->pipe_instream, |
| 2137 p->pipe_outstream, | |
| 2138 p->pipe_errstream, | |
| 2139 &in_usid, &err_usid); | |
| 428 | 2140 |
| 853 | 2141 if (in_usid != USID_DONTHASH) |
| 2367 | 2142 remhash ((const void *) in_usid, usid_to_process); |
| 853 | 2143 if (err_usid != USID_DONTHASH) |
| 2367 | 2144 remhash ((const void *) err_usid, usid_to_process); |
| 428 | 2145 |
| 2146 p->pipe_instream = Qnil; | |
| 2147 p->pipe_outstream = Qnil; | |
| 853 | 2148 p->pipe_errstream = Qnil; |
| 428 | 2149 p->coding_instream = Qnil; |
| 2150 p->coding_outstream = Qnil; | |
| 853 | 2151 p->coding_errstream = Qnil; |
| 428 | 2152 } |
| 2153 | |
| 2154 static void | |
| 444 | 2155 remove_process (Lisp_Object process) |
| 428 | 2156 { |
| 444 | 2157 Vprocess_list = delq_no_quit (process, Vprocess_list); |
| 428 | 2158 |
| 444 | 2159 deactivate_process (process); |
| 428 | 2160 } |
| 2161 | |
| 2162 DEFUN ("delete-process", Fdelete_process, 1, 1, 0, /* | |
| 2163 Delete PROCESS: kill it and forget about it immediately. | |
| 2164 PROCESS may be a process or the name of one, or a buffer name. | |
| 2165 */ | |
| 444 | 2166 (process)) |
| 428 | 2167 { |
| 2168 /* This function can GC */ | |
| 440 | 2169 Lisp_Process *p; |
| 444 | 2170 process = get_process (process); |
| 2171 p = XPROCESS (process); | |
| 2172 if (network_connection_p (process)) | |
| 428 | 2173 { |
| 2174 p->status_symbol = Qexit; | |
| 2175 p->exit_code = 0; | |
| 2176 p->core_dumped = 0; | |
| 2177 p->tick++; | |
| 2178 process_tick++; | |
| 2179 } | |
| 440 | 2180 else if (PROCESS_LIVE_P (p)) |
| 428 | 2181 { |
| 444 | 2182 Fkill_process (process, Qnil); |
| 428 | 2183 /* Do this now, since remove_process will make sigchld_handler do nothing. */ |
| 2184 p->status_symbol = Qsignal; | |
| 2185 p->exit_code = SIGKILL; | |
| 2186 p->core_dumped = 0; | |
| 2187 p->tick++; | |
| 2188 process_tick++; | |
| 2189 status_notify (); | |
| 2190 } | |
| 444 | 2191 remove_process (process); |
| 428 | 2192 return Qnil; |
| 2193 } | |
| 2194 | |
| 2195 /* Kill all processes associated with `buffer'. | |
| 2196 If `buffer' is nil, kill all processes */ | |
| 2197 | |
| 2198 void | |
| 2199 kill_buffer_processes (Lisp_Object buffer) | |
| 2200 { | |
| 444 | 2201 LIST_LOOP_2 (process, Vprocess_list) |
| 2202 if ((NILP (buffer) || EQ (XPROCESS (process)->buffer, buffer))) | |
| 2203 { | |
| 2204 if (network_connection_p (process)) | |
| 2205 Fdelete_process (process); | |
| 2206 else if (PROCESS_LIVE_P (XPROCESS (process))) | |
| 2207 process_send_signal (process, SIGHUP, 0, 1); | |
| 2208 } | |
| 428 | 2209 } |
| 2210 | |
| 2211 DEFUN ("process-kill-without-query", Fprocess_kill_without_query, 1, 2, 0, /* | |
| 2212 Say no query needed if PROCESS is running when Emacs is exited. | |
| 2213 Optional second argument if non-nil says to require a query. | |
| 2214 Value is t if a query was formerly required. | |
| 2215 */ | |
| 444 | 2216 (process, require_query_p)) |
| 428 | 2217 { |
| 2218 int tem; | |
| 2219 | |
| 444 | 2220 CHECK_PROCESS (process); |
| 2221 tem = XPROCESS (process)->kill_without_query; | |
| 2222 XPROCESS (process)->kill_without_query = NILP (require_query_p); | |
| 428 | 2223 |
| 2224 return tem ? Qnil : Qt; | |
| 2225 } | |
| 2226 | |
| 2227 DEFUN ("process-kill-without-query-p", Fprocess_kill_without_query_p, 1, 1, 0, /* | |
| 444 | 2228 Return t if PROCESS will be killed without query when emacs is exited. |
| 428 | 2229 */ |
| 444 | 2230 (process)) |
| 428 | 2231 { |
| 444 | 2232 CHECK_PROCESS (process); |
| 2233 return XPROCESS (process)->kill_without_query ? Qt : Qnil; | |
| 428 | 2234 } |
| 2235 | |
| 2236 | |
| 2237 #if 0 | |
| 2238 | |
| 826 | 2239 DEFUN ("process-connection", Fprocess_connection, 0, 1, 0, /* |
| 428 | 2240 Return the connection type of `PROCESS'. This can be nil (pipe), |
| 2241 t or pty (pty) or stream (socket connection). | |
| 2242 */ | |
| 2243 (process)) | |
| 2244 { | |
| 2245 return XPROCESS (process)->type; | |
| 2246 } | |
| 2247 | |
| 2248 #endif /* 0 */ | |
| 2249 | |
| 814 | 2250 |
| 2251 static int | |
| 867 | 2252 getenv_internal (const Ibyte *var, |
| 814 | 2253 Bytecount varlen, |
| 867 | 2254 Ibyte **value, |
| 814 | 2255 Bytecount *valuelen) |
| 2256 { | |
| 2257 Lisp_Object scan; | |
| 2258 | |
| 2259 assert (env_initted); | |
| 2260 | |
| 2261 for (scan = Vprocess_environment; CONSP (scan); scan = XCDR (scan)) | |
| 2262 { | |
| 2263 Lisp_Object entry = XCAR (scan); | |
| 2264 | |
| 2265 if (STRINGP (entry) | |
| 2266 && XSTRING_LENGTH (entry) > varlen | |
| 826 | 2267 && string_byte (entry, varlen) == '=' |
| 814 | 2268 #ifdef WIN32_NATIVE |
| 2269 /* NT environment variables are case insensitive. */ | |
| 2270 && ! memicmp (XSTRING_DATA (entry), var, varlen) | |
| 2271 #else /* not WIN32_NATIVE */ | |
| 2272 && ! memcmp (XSTRING_DATA (entry), var, varlen) | |
| 2273 #endif /* not WIN32_NATIVE */ | |
| 2274 ) | |
| 2275 { | |
| 2276 *value = XSTRING_DATA (entry) + (varlen + 1); | |
| 2277 *valuelen = XSTRING_LENGTH (entry) - (varlen + 1); | |
| 2278 return 1; | |
| 2279 } | |
| 2280 } | |
| 2281 | |
| 2282 return 0; | |
| 2283 } | |
| 2284 | |
| 2285 static void | |
| 867 | 2286 putenv_internal (const Ibyte *var, |
| 814 | 2287 Bytecount varlen, |
| 867 | 2288 const Ibyte *value, |
| 814 | 2289 Bytecount valuelen) |
| 2290 { | |
| 2291 Lisp_Object scan; | |
| 2292 | |
| 2293 assert (env_initted); | |
| 2294 | |
| 2295 for (scan = Vprocess_environment; CONSP (scan); scan = XCDR (scan)) | |
| 2296 { | |
| 2297 Lisp_Object entry = XCAR (scan); | |
| 2298 | |
| 2299 if (STRINGP (entry) | |
| 2300 && XSTRING_LENGTH (entry) > varlen | |
| 826 | 2301 && string_byte (entry, varlen) == '=' |
| 814 | 2302 #ifdef WIN32_NATIVE |
| 2303 /* NT environment variables are case insensitive. */ | |
| 2304 && ! memicmp (XSTRING_DATA (entry), var, varlen) | |
| 2305 #else /* not WIN32_NATIVE */ | |
| 2306 && ! memcmp (XSTRING_DATA (entry), var, varlen) | |
| 2307 #endif /* not WIN32_NATIVE */ | |
| 2308 ) | |
| 2309 { | |
| 2310 XCAR (scan) = concat3 (make_string (var, varlen), | |
| 2311 build_string ("="), | |
| 2312 make_string (value, valuelen)); | |
| 2313 return; | |
| 2314 } | |
| 2315 } | |
| 2316 | |
| 2317 Vprocess_environment = Fcons (concat3 (make_string (var, varlen), | |
| 2318 build_string ("="), | |
| 2319 make_string (value, valuelen)), | |
| 2320 Vprocess_environment); | |
| 2321 } | |
| 2322 | |
| 2323 /* NOTE: | |
| 2324 | |
| 2325 FSF has this as a Lisp function, as follows. Generally moving things | |
| 2326 out of C and into Lisp is a good idea, but in this case the Lisp | |
| 2327 function is used so early in the startup sequence that it would be ugly | |
| 2328 to rearrange the early dumped code to accommodate this. | |
| 854 | 2329 |
| 814 | 2330 (defun getenv (variable) |
| 2331 "Get the value of environment variable VARIABLE. | |
| 2332 VARIABLE should be a string. Value is nil if VARIABLE is undefined in | |
| 2333 the environment. Otherwise, value is a string. | |
| 2334 | |
| 2335 This function consults the variable `process-environment' | |
| 2336 for its value." | |
| 2337 (interactive (list (read-envvar-name "Get environment variable: " t))) | |
| 2338 (let ((value (getenv-internal variable))) | |
| 2339 (when (interactive-p) | |
| 2340 (message "%s" (if value value "Not set"))) | |
| 2341 value)) | |
| 2342 */ | |
| 2343 | |
| 2344 DEFUN ("getenv", Fgetenv, 1, 2, "sEnvironment variable: \np", /* | |
| 2345 Return the value of environment variable VAR, as a string. | |
| 2346 VAR is a string, the name of the variable. | |
| 2347 When invoked interactively, prints the value in the echo area. | |
| 2348 */ | |
| 2349 (var, interactivep)) | |
| 2350 { | |
| 867 | 2351 Ibyte *value; |
| 814 | 2352 Bytecount valuelen; |
| 2353 Lisp_Object v = Qnil; | |
| 2354 struct gcpro gcpro1; | |
| 2355 | |
| 2356 CHECK_STRING (var); | |
| 2357 GCPRO1 (v); | |
| 2358 if (getenv_internal (XSTRING_DATA (var), XSTRING_LENGTH (var), | |
| 2359 &value, &valuelen)) | |
| 2360 v = make_string (value, valuelen); | |
| 2361 if (!NILP (interactivep)) | |
| 2362 { | |
| 2363 if (NILP (v)) | |
| 2364 message ("%s not defined in environment", XSTRING_DATA (var)); | |
| 2365 else | |
| 2366 /* #### Should use Fprin1_to_string or Fprin1 to handle string | |
| 2367 containing quotes correctly. */ | |
| 2368 message ("\"%s\"", value); | |
| 2369 } | |
| 2370 RETURN_UNGCPRO (v); | |
| 2371 } | |
| 2372 | |
| 2373 /* A version of getenv that consults Vprocess_environment, easily | |
| 2374 callable from C. | |
| 2375 | |
| 2376 (At init time, Vprocess_environment is initialized from the | |
| 2377 environment, stored in the global variable environ. [Note that | |
| 2378 at startup time, `environ' should be the same as the envp parameter | |
| 2379 passed to main(); however, later calls to putenv() may change | |
| 2380 `environ', making the envp parameter inaccurate.] Calls to getenv() | |
| 2381 and putenv() consult and modify `environ'. However, once | |
| 2382 Vprocess_environment is initted, XEmacs C code should *NEVER* call | |
| 2383 getenv() or putenv() directly, because (1) Lisp code that modifies | |
| 2384 the environment only modifies Vprocess_environment, not `environ'; | |
| 2385 and (2) Vprocess_environment is in internal format but `environ' | |
| 2386 is in some external format, and getenv()/putenv() are not Mule- | |
| 2387 encapsulated. | |
| 2388 | |
| 2389 WARNING: This value points into Lisp string data and thus will become | |
| 2390 invalid after a GC. */ | |
| 2391 | |
| 867 | 2392 Ibyte * |
| 2393 egetenv (const CIbyte *var) | |
| 814 | 2394 { |
| 2395 /* This cannot GC -- 7-28-00 ben */ | |
| 867 | 2396 Ibyte *value; |
| 814 | 2397 Bytecount valuelen; |
| 2398 | |
| 867 | 2399 if (getenv_internal ((const Ibyte *) var, strlen (var), &value, &valuelen)) |
| 814 | 2400 return value; |
| 2401 else | |
| 2402 return 0; | |
| 2403 } | |
| 2404 | |
| 2405 void | |
| 867 | 2406 eputenv (const CIbyte *var, const CIbyte *value) |
| 814 | 2407 { |
| 867 | 2408 putenv_internal ((Ibyte *) var, strlen (var), (Ibyte *) value, |
| 814 | 2409 strlen (value)); |
| 2410 } | |
| 2411 | |
| 2412 | |
| 2413 /* This is not named init_process in order to avoid a conflict with NS 3.3 */ | |
| 2414 void | |
| 2415 init_xemacs_process (void) | |
| 2416 { | |
| 2417 /* This function can GC */ | |
| 2418 | |
| 2419 MAYBE_PROCMETH (init_process, ()); | |
| 2420 | |
| 2421 Vprocess_list = Qnil; | |
| 2422 | |
| 2423 if (usid_to_process) | |
| 2424 clrhash (usid_to_process); | |
| 2425 else | |
| 2426 usid_to_process = make_hash_table (32); | |
| 854 | 2427 |
| 814 | 2428 { |
| 2429 /* jwz: always initialize Vprocess_environment, so that egetenv() | |
| 2430 works in temacs. */ | |
| 2367 | 2431 Extbyte **envp; |
| 814 | 2432 Vprocess_environment = Qnil; |
| 2367 | 2433 #ifdef WIN32_NATIVE |
| 2434 _wgetenv (L""); /* force initialization of _wenviron */ | |
| 2435 for (envp = (Extbyte **) _wenviron; envp && *envp; envp++) | |
| 2436 Vprocess_environment = | |
| 2437 Fcons (build_ext_string (*envp, Qmswindows_unicode), | |
| 2438 Vprocess_environment); | |
| 2439 #else | |
| 814 | 2440 for (envp = environ; envp && *envp; envp++) |
| 2441 Vprocess_environment = | |
|
4834
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Use new cygwin_conv_path API with Cygwin 1.7 for converting names between Win32 and POSIX, UTF-8-aware, with attendant changes elsewhere
Ben Wing <ben@xemacs.org>
parents:
4759
diff
changeset
|
2442 Fcons (build_ext_string (*envp, Qenvironment_variable_encoding), |
|
b3ea9c582280
Use new cygwin_conv_path API with Cygwin 1.7 for converting names between Win32 and POSIX, UTF-8-aware, with attendant changes elsewhere
Ben Wing <ben@xemacs.org>
parents:
4759
diff
changeset
|
2443 Vprocess_environment); |
| 2367 | 2444 #endif |
| 814 | 2445 /* This gets set back to 0 in disksave_object_finalization() */ |
| 2446 env_initted = 1; | |
| 2447 } | |
| 2448 | |
| 2449 { | |
| 2450 /* Initialize shell-file-name from environment variables or best guess. */ | |
| 2451 #ifdef WIN32_NATIVE | |
| 867 | 2452 const Ibyte *shell = egetenv ("SHELL"); |
| 814 | 2453 if (!shell) shell = egetenv ("COMSPEC"); |
| 2454 /* Should never happen! */ | |
| 2455 if (!shell) shell = | |
| 867 | 2456 (Ibyte *) (GetVersion () & 0x80000000 ? "command" : "cmd"); |
| 814 | 2457 #else /* not WIN32_NATIVE */ |
| 867 | 2458 const Ibyte *shell = egetenv ("SHELL"); |
| 2459 if (!shell) shell = (Ibyte *) "/bin/sh"; | |
| 814 | 2460 #endif |
| 2461 | |
| 2462 #if 0 /* defined (WIN32_NATIVE) */ | |
| 2463 /* BAD BAD BAD. We do not wanting to be passing an XEmacs-created | |
| 2464 SHELL var down to some inferior Cygwin process, which might get | |
| 2465 screwed up. | |
| 854 | 2466 |
| 814 | 2467 There are a few broken apps (eterm/term.el, eterm/tshell.el, |
| 2468 os-utils/terminal.el, texinfo/tex-mode.el) where this will | |
| 2469 cause problems. Those broken apps don't look at | |
| 2470 shell-file-name, instead just at explicit-shell-file-name, | |
| 2471 ESHELL and SHELL. They are apparently attempting to borrow | |
| 2472 what `M-x shell' uses, but that latter also looks at | |
| 2473 shell-file-name. What we want is for all of these apps to look | |
| 2474 at shell-file-name, so that the user can change the value of | |
| 2475 shell-file-name and everything will work out hunky-dorey. | |
| 2476 */ | |
| 854 | 2477 |
| 814 | 2478 if (!egetenv ("SHELL")) |
| 2479 { | |
| 2367 | 2480 Ibyte *faux_var = alloca_ibytes (7 + qxestrlen (shell)); |
| 814 | 2481 qxesprintf (faux_var, "SHELL=%s", shell); |
| 2482 Vprocess_environment = Fcons (build_intstring (faux_var), | |
| 2483 Vprocess_environment); | |
| 2484 } | |
| 2485 #endif /* 0 */ | |
| 2486 | |
| 2487 Vshell_file_name = build_intstring (shell); | |
| 2488 } | |
| 2489 } | |
| 2490 | |
| 428 | 2491 void |
| 2492 syms_of_process (void) | |
| 2493 { | |
| 442 | 2494 INIT_LRECORD_IMPLEMENTATION (process); |
| 2495 | |
| 563 | 2496 DEFSYMBOL (Qprocessp); |
| 2497 DEFSYMBOL (Qprocess_live_p); | |
| 2498 DEFSYMBOL (Qrun); | |
| 2499 DEFSYMBOL (Qstop); | |
| 2500 DEFSYMBOL (Qopen); | |
| 2501 DEFSYMBOL (Qclosed); | |
| 863 | 2502 #if 0 |
| 2503 /* see comment at Fprocess_readable_p */ | |
| 2504 DEFSYMBOL (&Qprocess_readable_p); | |
| 2505 #endif | |
| 563 | 2506 DEFSYMBOL (Qtcp); |
| 2507 DEFSYMBOL (Qudp); | |
| 428 | 2508 |
| 2509 #ifdef HAVE_MULTICAST | |
| 563 | 2510 DEFSYMBOL (Qmulticast); /* Used for occasional warnings */ |
| 428 | 2511 #endif |
| 2512 | |
| 563 | 2513 DEFERROR_STANDARD (Qprocess_error, Qio_error); |
| 2514 DEFERROR_STANDARD (Qnetwork_error, Qio_error); | |
| 2515 | |
| 428 | 2516 DEFSUBR (Fprocessp); |
| 440 | 2517 DEFSUBR (Fprocess_live_p); |
| 863 | 2518 #if 0 |
| 2519 /* see comment at Fprocess_readable_p */ | |
| 2520 DEFSUBR (Fprocess_readable_p); | |
| 2521 #endif | |
| 428 | 2522 DEFSUBR (Fget_process); |
| 2523 DEFSUBR (Fget_buffer_process); | |
| 2524 DEFSUBR (Fdelete_process); | |
| 2525 DEFSUBR (Fprocess_status); | |
| 2526 DEFSUBR (Fprocess_exit_status); | |
| 2527 DEFSUBR (Fprocess_id); | |
| 2528 DEFSUBR (Fprocess_name); | |
| 2529 DEFSUBR (Fprocess_tty_name); | |
| 2530 DEFSUBR (Fprocess_command); | |
| 859 | 2531 DEFSUBR (Fprocess_has_separate_stderr_p); |
| 428 | 2532 DEFSUBR (Fset_process_buffer); |
| 853 | 2533 DEFSUBR (Fset_process_stderr_buffer); |
| 428 | 2534 DEFSUBR (Fprocess_buffer); |
| 2535 DEFSUBR (Fprocess_mark); | |
| 853 | 2536 DEFSUBR (Fprocess_stderr_buffer); |
| 2537 DEFSUBR (Fprocess_stderr_mark); | |
| 428 | 2538 DEFSUBR (Fset_process_filter); |
| 2539 DEFSUBR (Fprocess_filter); | |
| 853 | 2540 DEFSUBR (Fset_process_stderr_filter); |
| 2541 DEFSUBR (Fprocess_stderr_filter); | |
| 428 | 2542 DEFSUBR (Fset_process_window_size); |
| 2543 DEFSUBR (Fset_process_sentinel); | |
| 2544 DEFSUBR (Fprocess_sentinel); | |
| 2545 DEFSUBR (Fprocess_kill_without_query); | |
| 2546 DEFSUBR (Fprocess_kill_without_query_p); | |
| 2547 DEFSUBR (Fprocess_list); | |
| 2548 DEFSUBR (Fstart_process_internal); | |
| 2549 #ifdef HAVE_SOCKETS | |
| 2550 DEFSUBR (Fopen_network_stream_internal); | |
| 2551 #ifdef HAVE_MULTICAST | |
| 2552 DEFSUBR (Fopen_multicast_group_internal); | |
| 2553 #endif /* HAVE_MULTICAST */ | |
| 2554 #endif /* HAVE_SOCKETS */ | |
| 2555 DEFSUBR (Fprocess_send_region); | |
| 2556 DEFSUBR (Fprocess_send_string); | |
| 442 | 2557 DEFSUBR (Fprocess_send_signal); |
| 428 | 2558 DEFSUBR (Finterrupt_process); |
| 2559 DEFSUBR (Fkill_process); | |
| 2560 DEFSUBR (Fquit_process); | |
| 2561 DEFSUBR (Fstop_process); | |
| 2562 DEFSUBR (Fcontinue_process); | |
| 2563 DEFSUBR (Fprocess_send_eof); | |
| 2564 DEFSUBR (Fsignal_process); | |
| 2565 /* DEFSUBR (Fprocess_connection); */ | |
| 2566 DEFSUBR (Fprocess_input_coding_system); | |
| 2567 DEFSUBR (Fprocess_output_coding_system); | |
| 2568 DEFSUBR (Fset_process_input_coding_system); | |
| 2569 DEFSUBR (Fset_process_output_coding_system); | |
| 2570 DEFSUBR (Fprocess_coding_system); | |
| 2571 DEFSUBR (Fset_process_coding_system); | |
| 814 | 2572 DEFSUBR (Fgetenv); |
| 428 | 2573 } |
| 2574 | |
| 2575 void | |
| 2576 vars_of_process (void) | |
| 2577 { | |
| 2578 Fprovide (intern ("subprocesses")); | |
| 2579 #ifdef HAVE_SOCKETS | |
| 2580 Fprovide (intern ("network-streams")); | |
| 2581 #ifdef HAVE_MULTICAST | |
| 2582 Fprovide (intern ("multicast")); | |
| 2583 #endif /* HAVE_MULTICAST */ | |
| 2584 #endif /* HAVE_SOCKETS */ | |
| 2585 staticpro (&Vprocess_list); | |
| 2586 | |
| 2587 DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes /* | |
| 2588 *Non-nil means delete processes immediately when they exit. | |
| 2589 nil means don't delete them until `list-processes' is run. | |
| 2590 */ ); | |
| 2591 | |
| 2592 delete_exited_processes = 1; | |
| 2593 | |
| 442 | 2594 DEFVAR_CONST_LISP ("null-device", &Vnull_device /* |
| 2595 Name of the null device, which differs from system to system. | |
| 2596 The null device is a filename that acts as a sink for arbitrary amounts of | |
| 2597 data, which is discarded, or as a source for a zero-length file. | |
| 2598 It is available on all the systems that we currently support, but with | |
| 2599 different names (typically either `/dev/null' or `nul'). | |
| 2600 | |
| 2601 Note that there is also a /dev/zero on most modern Unix versions (including | |
| 2602 Cygwin), which acts like /dev/null when used as a sink, but as a source | |
| 2603 it sends a non-ending stream of zero bytes. It's used most often along | |
| 2604 with memory-mapping. We don't provide a Lisp variable for this because | |
| 2605 the operations needing this are lower level than what ELisp programs | |
| 2606 typically do, and in any case no equivalent exists under native MS Windows. | |
| 2607 */ ); | |
| 2608 Vnull_device = build_string (NULL_DEVICE); | |
| 2609 | |
| 428 | 2610 DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type /* |
| 2611 Control type of device used to communicate with subprocesses. | |
| 2612 Values are nil to use a pipe, or t or `pty' to use a pty. | |
| 2613 The value has no effect if the system has no ptys or if all ptys are busy: | |
| 2614 then a pipe is used in any case. | |
| 2615 The value takes effect when `start-process' is called. | |
| 2616 */ ); | |
| 2617 Vprocess_connection_type = Qt; | |
| 2618 | |
| 2619 DEFVAR_BOOL ("windowed-process-io", &windowed_process_io /* | |
| 2620 Enables input/output on standard handles of a windowed process. | |
| 2621 When this variable is nil (the default), XEmacs does not attempt to read | |
| 2622 standard output handle of a windowed process. Instead, the process is | |
| 2623 immediately marked as exited immediately upon successful launching. This is | |
| 2624 done because normal windowed processes do not use standard I/O, as they are | |
| 2625 not connected to any console. | |
| 2626 | |
| 2627 When launching a specially crafted windowed process, which expects to be | |
| 2628 launched by XEmacs, or by other program which pipes its standard input and | |
| 2629 output, this variable must be set to non-nil, in which case XEmacs will | |
| 2630 treat this process just like a console process. | |
| 2631 | |
| 2632 NOTE: You should never set this variable, only bind it. | |
| 2633 | |
| 2634 Only Windows processes can be "windowed" or "console". This variable has no | |
| 2635 effect on UNIX processes, because all UNIX processes are "console". | |
| 2636 */ ); | |
| 2637 windowed_process_io = 0; | |
| 2638 | |
| 771 | 2639 DEFVAR_INT ("debug-process-io", &debug_process_io /* |
| 2640 If non-zero, display data sent to or received from a process. | |
| 2641 */ ); | |
| 2642 debug_process_io = 0; | |
| 2643 | |
| 2644 DEFVAR_LISP ("default-process-coding-system", | |
| 2645 &Vdefault_process_coding_system /* | |
| 2646 Cons of coding systems used for process I/O by default. | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2647 May also be nil, interpreted as (nil . nil). |
| 771 | 2648 The car part is used for reading (decoding) data from a process, and |
| 2649 the cdr part is used for writing (encoding) data to a process. | |
| 2650 */ ); | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2651 /* Better, system-dependent defaults are set in code-init.el. */ |
| 771 | 2652 Vdefault_process_coding_system = Fcons (Qundecided, Qnil); |
| 2653 | |
| 853 | 2654 DEFVAR_LISP ("default-network-coding-system", |
| 2655 &Vdefault_network_coding_system /* | |
| 2656 Cons of coding systems used for network I/O by default. | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2657 May also be nil, interpreted as (nil . nil). |
| 853 | 2658 The car part is used for reading (decoding) data from a process, and |
| 2659 the cdr part is used for writing (encoding) data to a process. | |
| 2660 */ ); | |
| 2661 Vdefault_network_coding_system = Fcons (Qundecided, Qnil); | |
| 2662 | |
| 428 | 2663 #ifdef PROCESS_IO_BLOCKING |
| 2664 DEFVAR_LISP ("network-stream-blocking-port-list", &network_stream_blocking_port_list /* | |
| 2665 List of port numbers or port names to set a blocking I/O mode with connection. | |
| 862 | 2666 Nil value means to set a default (non-blocking) I/O mode. |
| 428 | 2667 The value takes effect when `open-network-stream-internal' is called. |
| 2668 */ ); | |
| 2669 network_stream_blocking_port_list = Qnil; | |
| 2670 #endif /* PROCESS_IO_BLOCKING */ | |
| 814 | 2671 |
| 2672 /* This function can GC */ | |
| 2673 DEFVAR_LISP ("shell-file-name", &Vshell_file_name /* | |
| 2674 *File name to load inferior shells from. | |
| 2675 Initialized from the SHELL environment variable. | |
| 2676 */ ); | |
| 428 | 2677 |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2678 /* ben? thinks the format of this variable is "semi-bogus". |
|
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2679 sjt doesn't agree, since it captures a restriction that is |
|
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2680 present in POSIX shells, after all. */ |
| 814 | 2681 DEFVAR_LISP ("process-environment", &Vprocess_environment /* |
| 2682 List of environment variables for subprocesses to inherit. | |
| 2683 Each element should be a string of the form ENVVARNAME=VALUE. | |
| 2684 The environment which Emacs inherits is placed in this variable | |
| 2685 when Emacs starts. | |
| 2686 */ ); | |
| 2687 | |
| 2688 Vlisp_EXEC_SUFFIXES = build_string (EXEC_SUFFIXES); | |
| 2689 staticpro (&Vlisp_EXEC_SUFFIXES); | |
| 2690 } |