Mercurial > hg > xemacs-beta
annotate src/process.c @ 5143:186aebf7f6c6
merge
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Sat, 13 Mar 2010 11:38:54 -0600 |
| parents | f965e31a35f0 |
| children | 6c6d78781d59 |
| 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. | |
| 5125 | 5 Copyright (C) 1995, 1996, 2001, 2002, 2004, 2005, 2010 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 | |
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111 /* Read-only to Lisp. See DEFUN Fprocess_list. */ |
| 428 | 112 Lisp_Object Vprocess_list; |
| 113 | |
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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 | |
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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 | |
| 4846 | 148 print_process (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag) |
| 428 | 149 { |
| 4846 | 150 Lisp_Process *process = XPROCESS (obj); |
| 428 | 151 |
| 152 if (print_readably) | |
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153 printing_unreadable_lisp_object (obj, XSTRING_DATA (process->name)); |
| 428 | 154 |
| 155 if (!escapeflag) | |
| 156 { | |
| 444 | 157 print_internal (process->name, printcharfun, 0); |
| 428 | 158 } |
| 159 else | |
| 160 { | |
| 4846 | 161 int netp = network_connection_p (obj); |
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162 write_ascstring (printcharfun, |
| 826 | 163 netp ? GETTEXT ("#<network connection ") : |
| 164 GETTEXT ("#<process ")); | |
| 444 | 165 print_internal (process->name, printcharfun, 1); |
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166 write_ascstring (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)); |
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170 write_ascstring (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 | |
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179 finalize_process (Lisp_Object obj) |
| 428 | 180 { |
| 181 /* #### this probably needs to be tied into the tty event loop */ | |
| 182 /* #### when there is one */ | |
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183 Lisp_Process *p = XPROCESS (obj); |
| 428 | 184 #ifdef HAVE_WINDOW_SYSTEM |
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185 debug_process_finalization (p); |
| 428 | 186 #endif /* HAVE_WINDOW_SYSTEM */ |
| 187 | |
| 188 if (p->process_data) | |
| 189 { | |
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190 MAYBE_PROCMETH (finalize_process_data, (p)); |
| 5125 | 191 xfree (p->process_data); |
| 428 | 192 } |
| 193 } | |
| 194 | |
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195 DEFINE_NODUMP_LISP_OBJECT ("process", process, |
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196 mark_process, print_process, finalize_process, |
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197 0, 0, process_description, Lisp_Process); |
| 428 | 198 |
| 199 /************************************************************************/ | |
| 200 /* basic process accessors */ | |
| 201 /************************************************************************/ | |
| 202 | |
| 771 | 203 /* This function returns low-level streams, connected directly to the child |
| 204 process, rather than en/decoding streams */ | |
| 428 | 205 void |
| 853 | 206 get_process_streams (Lisp_Process *p, Lisp_Object *instr, Lisp_Object *outstr, |
| 207 Lisp_Object *errstr) | |
| 428 | 208 { |
| 209 assert (p); | |
| 853 | 210 assert (NILP (p->pipe_instream) || LSTREAMP (p->pipe_instream)); |
| 211 assert (NILP (p->pipe_outstream) || LSTREAMP (p->pipe_outstream)); | |
| 212 assert (NILP (p->pipe_errstream) || LSTREAMP (p->pipe_errstream)); | |
| 428 | 213 *instr = p->pipe_instream; |
| 214 *outstr = p->pipe_outstream; | |
| 853 | 215 *errstr = p->pipe_errstream; |
| 428 | 216 } |
| 217 | |
| 853 | 218 /* Given a USID referring to either a process's instream or errstream, |
| 219 return the associated process. */ | |
| 440 | 220 Lisp_Process * |
| 428 | 221 get_process_from_usid (USID usid) |
| 222 { | |
| 442 | 223 const void *vval; |
| 428 | 224 |
| 225 assert (usid != USID_ERROR && usid != USID_DONTHASH); | |
| 226 | |
| 442 | 227 if (gethash ((const void*)usid, usid_to_process, &vval)) |
| 428 | 228 { |
| 444 | 229 Lisp_Object process; |
| 5013 | 230 process = GET_LISP_FROM_VOID (vval); |
| 444 | 231 return XPROCESS (process); |
| 428 | 232 } |
| 233 else | |
| 234 return 0; | |
| 235 } | |
| 236 | |
| 237 int | |
| 853 | 238 get_process_selected_p (Lisp_Process *p, int do_err) |
| 428 | 239 { |
| 853 | 240 return do_err ? p->err_selected : p->in_selected; |
| 428 | 241 } |
| 242 | |
| 243 void | |
| 853 | 244 set_process_selected_p (Lisp_Process *p, int in_selected, int err_selected) |
| 428 | 245 { |
| 853 | 246 p->in_selected = !!in_selected; |
| 247 p->err_selected = !!err_selected; | |
| 428 | 248 } |
| 249 | |
| 250 int | |
| 440 | 251 connected_via_filedesc_p (Lisp_Process *p) |
| 428 | 252 { |
| 253 return MAYBE_INT_PROCMETH (tooltalk_connection_p, (p)); | |
| 254 } | |
| 255 | |
| 256 #ifdef HAVE_SOCKETS | |
| 257 int | |
| 258 network_connection_p (Lisp_Object process) | |
| 259 { | |
| 260 return CONSP (XPROCESS (process)->pid); | |
| 261 } | |
| 262 #endif | |
| 263 | |
| 264 DEFUN ("processp", Fprocessp, 1, 1, 0, /* | |
| 265 Return t if OBJECT is a process. | |
| 266 */ | |
| 444 | 267 (object)) |
| 428 | 268 { |
| 444 | 269 return PROCESSP (object) ? Qt : Qnil; |
| 428 | 270 } |
| 271 | |
| 440 | 272 DEFUN ("process-live-p", Fprocess_live_p, 1, 1, 0, /* |
| 273 Return t if OBJECT is a process that is alive. | |
| 274 */ | |
| 444 | 275 (object)) |
| 440 | 276 { |
| 444 | 277 return PROCESSP (object) && PROCESS_LIVE_P (XPROCESS (object)) |
| 278 ? Qt : Qnil; | |
| 440 | 279 } |
| 280 | |
| 863 | 281 #if 0 |
| 282 /* This is a reasonable definition for this new primitive. Kyle sez: | |
| 283 | |
| 284 "The patch looks OK to me except for the creation and exporting of the | |
| 285 Fprocess_readable_p function. I don't think a new Lisp function | |
| 286 should be created until we know something actually needs it. If | |
| 287 we later want to give process-readable-p different semantics it | |
| 288 may be hard to do it and stay compatible with what we hastily | |
| 289 create today." | |
| 290 | |
| 291 He's right, not yet. Let's discuss the semantics on XEmacs Design | |
| 292 before enabling this. | |
| 293 */ | |
| 294 DEFUN ("process-readable-p", Fprocess_readable_p, 1, 1, 0, /* | |
| 295 Return t if OBJECT is a process from which input may be available. | |
| 296 */ | |
| 297 (object)) | |
| 298 { | |
| 299 return PROCESSP (object) && PROCESS_READABLE_P (XPROCESS (object)) | |
| 300 ? Qt : Qnil; | |
| 301 } | |
| 302 #endif | |
| 303 | |
| 428 | 304 DEFUN ("process-list", Fprocess_list, 0, 0, 0, /* |
| 305 Return a list of all processes. | |
| 306 */ | |
| 307 ()) | |
| 308 { | |
| 309 return Fcopy_sequence (Vprocess_list); | |
| 310 } | |
| 311 | |
| 312 DEFUN ("get-process", Fget_process, 1, 1, 0, /* | |
| 444 | 313 Return the process named PROCESS-NAME (a string), or nil if there is none. |
| 314 PROCESS-NAME may also be a process; if so, the value is that process. | |
| 428 | 315 */ |
| 444 | 316 (process_name)) |
| 428 | 317 { |
| 444 | 318 if (PROCESSP (process_name)) |
| 319 return process_name; | |
| 428 | 320 |
| 321 if (!gc_in_progress) | |
| 322 /* this only gets called during GC when emacs is going away as a result | |
| 323 of a signal or crash. */ | |
| 444 | 324 CHECK_STRING (process_name); |
| 428 | 325 |
| 444 | 326 { |
| 327 LIST_LOOP_2 (process, Vprocess_list) | |
| 328 if (internal_equal (process_name, XPROCESS (process)->name, 0)) | |
| 329 return process; | |
| 330 } | |
| 428 | 331 return Qnil; |
| 332 } | |
| 333 | |
| 334 DEFUN ("get-buffer-process", Fget_buffer_process, 1, 1, 0, /* | |
| 335 Return the (or, a) process associated with BUFFER. | |
| 336 BUFFER may be a buffer or the name of one. | |
| 337 */ | |
| 444 | 338 (buffer)) |
| 428 | 339 { |
| 444 | 340 if (NILP (buffer)) return Qnil; |
| 341 buffer = Fget_buffer (buffer); | |
| 342 if (NILP (buffer)) return Qnil; | |
| 428 | 343 |
| 444 | 344 { |
| 345 LIST_LOOP_2 (process, Vprocess_list) | |
| 346 if (EQ (XPROCESS (process)->buffer, buffer)) | |
| 347 return process; | |
| 348 } | |
| 428 | 349 return Qnil; |
| 350 } | |
| 351 | |
| 352 /* This is how commands for the user decode process arguments. It | |
| 353 accepts a process, a process name, a buffer, a buffer name, or nil. | |
| 354 Buffers denote the first process in the buffer, and nil denotes the | |
| 355 current buffer. */ | |
| 356 | |
| 357 static Lisp_Object | |
| 358 get_process (Lisp_Object name) | |
| 359 { | |
| 444 | 360 Lisp_Object buffer; |
| 428 | 361 |
| 362 #ifdef I18N3 | |
| 363 /* #### Look more closely into translating process names. */ | |
| 364 #endif | |
| 365 | |
| 366 /* This may be called during a GC from process_send_signal() from | |
| 2500 | 367 kill_buffer_processes() if emacs decides to ABORT(). */ |
| 428 | 368 if (PROCESSP (name)) |
| 369 return name; | |
| 444 | 370 else if (STRINGP (name)) |
| 428 | 371 { |
| 444 | 372 Lisp_Object object = Fget_process (name); |
| 373 if (PROCESSP (object)) | |
| 374 return object; | |
| 375 | |
| 376 buffer = Fget_buffer (name); | |
| 377 if (BUFFERP (buffer)) | |
| 378 goto have_buffer_object; | |
| 379 | |
| 563 | 380 invalid_argument ("Process does not exist", name); |
| 428 | 381 } |
| 382 else if (NILP (name)) | |
| 444 | 383 { |
| 384 buffer = Fcurrent_buffer (); | |
| 385 goto have_buffer_object; | |
| 386 } | |
| 387 else if (BUFFERP (name)) | |
| 388 { | |
| 389 Lisp_Object process; | |
| 390 buffer = name; | |
| 428 | 391 |
| 444 | 392 have_buffer_object: |
| 393 process = Fget_buffer_process (buffer); | |
| 394 if (PROCESSP (process)) | |
| 395 return process; | |
| 396 | |
| 563 | 397 invalid_argument ("Buffer has no process", buffer); |
| 428 | 398 } |
| 399 else | |
| 444 | 400 return get_process (Fsignal (Qwrong_type_argument, |
| 771 | 401 (list2 (build_msg_string ("process or buffer or nil"), |
| 444 | 402 name)))); |
| 428 | 403 } |
| 404 | |
| 405 DEFUN ("process-id", Fprocess_id, 1, 1, 0, /* | |
| 406 Return the process id of PROCESS. | |
| 407 This is the pid of the Unix process which PROCESS uses or talks to. | |
| 408 For a network connection, this value is a cons of | |
| 409 (foreign-network-port . foreign-host-name). | |
| 410 */ | |
| 444 | 411 (process)) |
| 428 | 412 { |
| 413 Lisp_Object pid; | |
| 444 | 414 CHECK_PROCESS (process); |
| 428 | 415 |
| 444 | 416 pid = XPROCESS (process)->pid; |
| 417 if (network_connection_p (process)) | |
| 428 | 418 /* return Qnil; */ |
| 419 return Fcons (Fcar (pid), Fcdr (pid)); | |
| 420 else | |
| 421 return pid; | |
| 422 } | |
| 423 | |
| 424 DEFUN ("process-name", Fprocess_name, 1, 1, 0, /* | |
| 425 Return the name of PROCESS, as a string. | |
| 426 This is the name of the program invoked in PROCESS, | |
| 427 possibly modified to make it unique among process names. | |
| 428 */ | |
| 444 | 429 (process)) |
| 428 | 430 { |
| 444 | 431 CHECK_PROCESS (process); |
| 432 return XPROCESS (process)->name; | |
| 428 | 433 } |
| 434 | |
| 435 DEFUN ("process-command", Fprocess_command, 1, 1, 0, /* | |
| 436 Return the command that was executed to start PROCESS. | |
| 437 This is a list of strings, the first string being the program executed | |
| 438 and the rest of the strings being the arguments given to it. | |
| 439 */ | |
| 444 | 440 (process)) |
| 428 | 441 { |
| 444 | 442 CHECK_PROCESS (process); |
| 443 return XPROCESS (process)->command; | |
| 428 | 444 } |
| 445 | |
| 446 | |
| 447 /************************************************************************/ | |
| 448 /* creating a process */ | |
| 449 /************************************************************************/ | |
| 450 | |
| 563 | 451 DOESNT_RETURN |
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452 report_process_error (const Ascbyte *reason, Lisp_Object data) |
| 563 | 453 { |
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454 report_error_with_errno (Qprocess_error, reason, data); |
| 563 | 455 } |
| 456 | |
| 457 DOESNT_RETURN | |
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458 report_network_error (const Ascbyte *reason, Lisp_Object data) |
| 563 | 459 { |
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460 report_error_with_errno (Qnetwork_error, reason, data); |
| 563 | 461 } |
| 462 | |
| 428 | 463 Lisp_Object |
| 464 make_process_internal (Lisp_Object name) | |
| 465 { | |
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466 Lisp_Object name1; |
| 428 | 467 int i; |
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468 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (process); |
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469 Lisp_Process *p = XPROCESS (obj); |
| 428 | 470 |
| 1204 | 471 #define MARKED_SLOT(x) p->x = Qnil; |
| 472 #include "process-slots.h" | |
| 473 | |
| 428 | 474 /* If name is already in use, modify it until it is unused. */ |
| 475 name1 = name; | |
| 476 for (i = 1; ; i++) | |
| 477 { | |
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478 Ascbyte suffix[10]; |
| 428 | 479 Lisp_Object tem = Fget_process (name1); |
| 480 if (NILP (tem)) | |
| 481 break; | |
| 482 sprintf (suffix, "<%d>", i); | |
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483 name1 = concat2 (name, build_ascstring (suffix)); |
| 428 | 484 } |
| 485 name = name1; | |
| 486 p->name = name; | |
| 487 | |
| 488 p->mark = Fmake_marker (); | |
| 853 | 489 p->stderr_mark = Fmake_marker (); |
| 428 | 490 p->status_symbol = Qrun; |
| 491 | |
| 492 MAYBE_PROCMETH (alloc_process_data, (p)); | |
| 493 | |
|
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494 Vprocess_list = Fcons (obj, Vprocess_list); |
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495 return obj; |
| 428 | 496 } |
| 497 | |
| 498 void | |
| 853 | 499 init_process_io_handles (Lisp_Process *p, void* in, void* out, void* err, |
| 500 int flags) | |
| 428 | 501 { |
| 853 | 502 USID in_usid, err_usid; |
| 771 | 503 Lisp_Object incode, outcode; |
| 504 | |
| 853 | 505 if (flags & STREAM_NETWORK_CONNECTION) |
| 506 { | |
|
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507 if (!LISTP (Vdefault_network_coding_system) || |
| 853 | 508 NILP (incode = (find_coding_system_for_text_file |
| 509 (Fcar (Vdefault_network_coding_system), 1))) || | |
| 510 NILP (outcode = (find_coding_system_for_text_file | |
| 511 (Fcdr (Vdefault_network_coding_system), 0)))) | |
| 512 signal_error (Qinvalid_state, | |
| 513 "Bogus value for `default-network-coding-system'", | |
| 514 Vdefault_network_coding_system); | |
| 515 } | |
| 516 else | |
| 517 { | |
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518 if (!LISTP (Vdefault_process_coding_system) || |
| 853 | 519 NILP (incode = (find_coding_system_for_text_file |
| 520 (Fcar (Vdefault_process_coding_system), 1))) || | |
| 521 NILP (outcode = (find_coding_system_for_text_file | |
| 522 (Fcdr (Vdefault_process_coding_system), 0)))) | |
| 523 signal_error (Qinvalid_state, | |
| 524 "Bogus value for `default-process-coding-system'", | |
| 525 Vdefault_process_coding_system); | |
| 526 } | |
| 771 | 527 |
| 784 | 528 if (!NILP (Vcoding_system_for_read) && |
| 529 NILP (incode = (find_coding_system_for_text_file | |
| 530 (Vcoding_system_for_read, 1)))) | |
| 531 signal_error (Qinvalid_state, | |
| 532 "Bogus value for `coding-system-for-read'", | |
| 533 Vcoding_system_for_read); | |
| 534 | |
| 535 if (!NILP (Vcoding_system_for_write) && | |
| 536 NILP (outcode = (find_coding_system_for_text_file | |
| 537 (Vcoding_system_for_write, 0)))) | |
| 538 signal_error (Qinvalid_state, | |
| 539 "Bogus value for `coding-system-for-write'", | |
| 540 Vcoding_system_for_write); | |
| 541 | |
| 853 | 542 event_stream_create_io_streams (in, out, err, |
| 543 &p->pipe_instream, | |
| 544 &p->pipe_outstream, | |
| 545 &p->pipe_errstream, | |
| 546 &in_usid, &err_usid, | |
| 547 flags); | |
| 428 | 548 |
| 853 | 549 if (in_usid == USID_ERROR || err_usid == USID_ERROR) |
| 563 | 550 signal_error (Qprocess_error, "Setting up communication with subprocess", |
| 853 | 551 wrap_process (p)); |
| 428 | 552 |
| 853 | 553 if (in_usid != USID_DONTHASH) |
| 428 | 554 { |
| 444 | 555 Lisp_Object process = Qnil; |
| 793 | 556 process = wrap_process (p); |
| 5013 | 557 puthash ((const void*) in_usid, STORE_LISP_IN_VOID (process), usid_to_process); |
| 428 | 558 } |
| 559 | |
| 853 | 560 if (err_usid != USID_DONTHASH) |
| 561 { | |
| 562 Lisp_Object process = Qnil; | |
| 563 process = wrap_process (p); | |
| 5013 | 564 puthash ((const void*) err_usid, STORE_LISP_IN_VOID (process), |
| 853 | 565 usid_to_process); |
| 566 } | |
| 567 | |
| 568 MAYBE_PROCMETH (init_process_io_handles, (p, in, out, err, flags)); | |
| 428 | 569 |
| 771 | 570 p->coding_instream = |
| 800 | 571 make_coding_input_stream (XLSTREAM (p->pipe_instream), incode, |
| 572 CODING_DECODE, 0); | |
| 853 | 573 if (!NILP (p->pipe_errstream)) |
| 574 p->coding_errstream = | |
| 575 make_coding_input_stream | |
| 576 (XLSTREAM (p->pipe_errstream), incode, CODING_DECODE, 0); | |
| 771 | 577 p->coding_outstream = |
| 800 | 578 make_coding_output_stream (XLSTREAM (p->pipe_outstream), outcode, |
| 579 CODING_ENCODE, 0); | |
| 428 | 580 } |
| 581 | |
| 582 static void | |
| 583 create_process (Lisp_Object process, Lisp_Object *argv, int nargv, | |
| 853 | 584 Lisp_Object program, Lisp_Object cur_dir, |
| 585 int separate_err) | |
| 428 | 586 { |
| 440 | 587 Lisp_Process *p = XPROCESS (process); |
| 428 | 588 int pid; |
| 589 | |
| 590 /* *_create_process may change status_symbol, if the process | |
| 591 is a kind of "fire-and-forget" (no I/O, unwaitable) */ | |
| 592 p->status_symbol = Qrun; | |
| 593 p->exit_code = 0; | |
| 594 | |
| 853 | 595 pid = PROCMETH (create_process, (p, argv, nargv, program, cur_dir, |
| 596 separate_err)); | |
| 428 | 597 |
| 598 p->pid = make_int (pid); | |
| 863 | 599 if (PROCESS_READABLE_P (p)) |
| 853 | 600 event_stream_select_process (p, 1, 1); |
| 428 | 601 } |
| 602 | |
| 603 /* This function is the unwind_protect form for Fstart_process_internal. If | |
| 444 | 604 PROCESS doesn't have its pid set, then we know someone has signalled |
| 428 | 605 an error and the process wasn't started successfully, so we should |
| 606 remove it from the process list. */ | |
| 444 | 607 static void remove_process (Lisp_Object process); |
| 428 | 608 static Lisp_Object |
| 444 | 609 start_process_unwind (Lisp_Object process) |
| 428 | 610 { |
| 444 | 611 /* Was PROCESS started successfully? */ |
| 612 if (EQ (XPROCESS (process)->pid, Qnil)) | |
| 613 remove_process (process); | |
| 428 | 614 return Qnil; |
| 615 } | |
| 616 | |
| 617 DEFUN ("start-process-internal", Fstart_process_internal, 3, MANY, 0, /* | |
| 853 | 618 Internal function to start a program in a subprocess. |
| 619 Lisp callers should use `start-process' instead. | |
| 620 | |
| 621 Returns the process object for it. | |
| 428 | 622 Args are NAME BUFFER PROGRAM &rest PROGRAM-ARGS |
| 623 NAME is name for process. It is modified if necessary to make it unique. | |
| 624 BUFFER is the buffer or (buffer-name) to associate with the process. | |
| 625 Process output goes at end of that buffer, unless you specify | |
| 626 an output stream or filter function to handle the output. | |
| 627 BUFFER may be also nil, meaning that this process is not associated | |
| 853 | 628 with any buffer. |
| 629 BUFFER can also have the form (REAL-BUFFER STDERR-BUFFER); in that case, | |
| 630 REAL-BUFFER says what to do with standard output, as above, | |
| 631 while STDERR-BUFFER says what to do with standard error in the child. | |
| 632 STDERR-BUFFER may be nil (discard standard error output, unless a stderr | |
| 633 filter is set). Note that if you do not use this form at process creation, | |
| 634 stdout and stderr will be mixed in the output buffer, and this cannot be | |
| 635 changed, even by setting a stderr filter. | |
| 428 | 636 Third arg is program file name. It is searched for as in the shell. |
| 637 Remaining arguments are strings to give program as arguments. | |
| 853 | 638 |
| 639 Read and write coding systems for the process are determined from | |
| 640 `coding-system-for-read' and `coding-system-for-write' (intended as | |
| 641 overriding coding systems to be *bound* by Lisp code, not set), or | |
| 642 from `default-process-coding-system' if either or both are nil. You can | |
| 643 change the coding systems later on using `set-process-coding-system', | |
| 644 `set-process-input-coding-system', or `set-process-output-coding-system'. | |
| 645 | |
| 646 See also `set-process-filter' and `set-process-stderr-filter'. | |
|
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647 |
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648 arguments: (NAME BUFFER PROGRAM &rest PROGRAM-ARGS) |
| 428 | 649 */ |
| 650 (int nargs, Lisp_Object *args)) | |
| 651 { | |
| 652 /* This function can call lisp */ | |
| 853 | 653 Lisp_Object buffer, stderr_buffer, name, program, process, current_dir; |
| 654 int separate_stderr; | |
| 428 | 655 Lisp_Object tem; |
| 910 | 656 int i; |
| 428 | 657 int speccount = specpdl_depth (); |
| 658 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 659 | |
| 660 name = args[0]; | |
| 661 buffer = args[1]; | |
| 662 program = args[2]; | |
| 663 current_dir = Qnil; | |
| 664 | |
| 665 /* Protect against various file handlers doing GCs below. */ | |
| 666 GCPRO3 (buffer, program, current_dir); | |
| 667 | |
| 853 | 668 if (CONSP (buffer)) |
| 669 { | |
| 670 if (!CONSP (XCDR (buffer))) | |
| 671 invalid_argument ("Invalid BUFFER argument to `start-process'", | |
| 672 buffer); | |
| 673 if (!NILP (XCDR (XCDR (buffer)))) | |
| 674 invalid_argument ("Invalid BUFFER argument to `start-process'", | |
| 675 buffer); | |
| 676 stderr_buffer = XCAR (XCDR (buffer)); | |
| 677 buffer = XCAR (buffer); | |
| 678 separate_stderr = 1; | |
| 679 } | |
| 680 else | |
| 681 { | |
| 682 stderr_buffer = Qnil; | |
| 683 separate_stderr = 0; | |
| 684 } | |
| 685 | |
| 428 | 686 if (!NILP (buffer)) |
| 687 buffer = Fget_buffer_create (buffer); | |
| 853 | 688 if (!NILP (stderr_buffer)) |
| 689 stderr_buffer = Fget_buffer_create (stderr_buffer); | |
| 428 | 690 |
| 691 CHECK_STRING (name); | |
| 692 CHECK_STRING (program); | |
| 910 | 693 for (i = 3; i < nargs; ++i) |
| 694 CHECK_STRING (args[i]); | |
| 428 | 695 |
| 696 /* Make sure that the child will be able to chdir to the current | |
| 502 | 697 buffer's current directory, or its unhandled equivalent. [[ We |
| 428 | 698 can't just have the child check for an error when it does the |
| 502 | 699 chdir, since it's in a vfork. ]] -- not any more, we don't use |
| 700 vfork. -ben | |
| 428 | 701 |
| 502 | 702 Note: These calls are spread out to insure that the return values |
| 703 of the calls (which may be newly-created strings) are properly | |
| 704 GC-protected. */ | |
| 428 | 705 current_dir = current_buffer->directory; |
| 502 | 706 /* If the current dir has no terminating slash, we'll get undesirable |
| 707 results, so put the slash back. */ | |
| 708 current_dir = Ffile_name_as_directory (current_dir); | |
| 428 | 709 current_dir = Funhandled_file_name_directory (current_dir); |
| 710 current_dir = expand_and_dir_to_file (current_dir, Qnil); | |
| 711 | |
| 712 #if 0 /* This loser breaks ange-ftp */ | |
| 713 /* dmoore - if you re-enable this code, you have to gcprotect | |
| 714 current_buffer through the above calls. */ | |
| 715 if (NILP (Ffile_accessible_directory_p (current_dir))) | |
| 563 | 716 signal_error (Qprocess_error, "Setting current directory", |
| 717 current_buffer->directory); | |
| 428 | 718 #endif /* 0 */ |
| 719 | |
| 720 /* If program file name is not absolute, search our path for it */ | |
| 826 | 721 if (!IS_DIRECTORY_SEP (string_byte (program, 0)) |
| 428 | 722 && !(XSTRING_LENGTH (program) > 1 |
| 826 | 723 && IS_DEVICE_SEP (string_byte (program, 1)))) |
| 428 | 724 { |
| 725 struct gcpro ngcpro1; | |
| 726 | |
| 727 tem = Qnil; | |
| 728 NGCPRO1 (tem); | |
| 729 locate_file (Vexec_path, program, Vlisp_EXEC_SUFFIXES, &tem, X_OK); | |
| 730 if (NILP (tem)) | |
| 563 | 731 signal_error (Qprocess_error, "Searching for program", program); |
| 428 | 732 program = Fexpand_file_name (tem, Qnil); |
| 733 NUNGCPRO; | |
| 734 } | |
| 735 else | |
| 736 { | |
| 442 | 737 /* we still need to canonicalize it and ensure it has the proper |
| 738 ending, e.g. .exe */ | |
| 739 struct gcpro ngcpro1; | |
| 740 | |
| 741 tem = Qnil; | |
| 742 NGCPRO1 (tem); | |
|
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|
743 locate_file (list1 (build_ascstring ("")), program, Vlisp_EXEC_SUFFIXES, |
| 442 | 744 &tem, X_OK); |
| 745 if (NILP (tem)) | |
| 563 | 746 signal_error (Qprocess_error, "Searching for program", program); |
| 442 | 747 program = tem; |
| 748 NUNGCPRO; | |
| 428 | 749 } |
| 750 | |
| 442 | 751 if (!NILP (Ffile_directory_p (program))) |
| 752 invalid_operation ("Specified program for new process is a directory", | |
| 753 program); | |
| 754 | |
| 444 | 755 process = make_process_internal (name); |
| 428 | 756 |
| 444 | 757 XPROCESS (process)->buffer = buffer; |
| 853 | 758 XPROCESS (process)->stderr_buffer = stderr_buffer; |
| 759 XPROCESS (process)->separate_stderr = separate_stderr; | |
| 814 | 760 XPROCESS (process)->command = Flist (nargs - 2, args + 2); |
| 428 | 761 |
| 762 /* Make the process marker point into the process buffer (if any). */ | |
| 763 if (!NILP (buffer)) | |
| 444 | 764 Fset_marker (XPROCESS (process)->mark, |
| 428 | 765 make_int (BUF_ZV (XBUFFER (buffer))), buffer); |
| 853 | 766 if (!NILP (stderr_buffer)) |
| 767 Fset_marker (XPROCESS (process)->stderr_mark, | |
| 768 make_int (BUF_ZV (XBUFFER (stderr_buffer))), stderr_buffer); | |
| 428 | 769 |
| 770 /* If an error occurs and we can't start the process, we want to | |
| 771 remove it from the process list. This means that each error | |
| 772 check in create_process doesn't need to call remove_process | |
| 773 itself; it's all taken care of here. */ | |
| 444 | 774 record_unwind_protect (start_process_unwind, process); |
| 428 | 775 |
| 853 | 776 create_process (process, args + 3, nargs - 3, program, current_dir, |
| 777 separate_stderr); | |
| 428 | 778 |
| 779 UNGCPRO; | |
| 771 | 780 return unbind_to_1 (speccount, process); |
| 428 | 781 } |
| 782 | |
| 783 | |
| 784 #ifdef HAVE_SOCKETS | |
| 785 | |
| 786 | |
| 787 /* #### The network support is fairly synthetical. What we actually | |
| 788 need is a single function, which supports all datagram, stream and | |
| 789 packet stream connections, arbitrary protocol families should they | |
| 790 be supported by the target system, multicast groups, in both data | |
| 791 and control rooted/nonrooted flavors, service quality etc whatever | |
| 792 is supported by the underlying network. | |
| 793 | |
| 794 It must accept a property list describing the connection. The current | |
| 795 functions must then go to lisp and provide a suitable list for the | |
| 796 generalized connection function. | |
| 797 | |
| 798 Both UNIX and Win32 support BSD sockets, and there are many extensions | |
| 799 available (Sockets 2 spec). | |
| 800 | |
| 801 A todo is define a consistent set of properties abstracting a | |
| 802 network connection. -kkm | |
| 803 */ | |
| 804 | |
| 805 | |
| 806 /* open a TCP network connection to a given HOST/SERVICE. Treated | |
| 807 exactly like a normal process when reading and writing. Only | |
| 808 differences are in status display and process deletion. A network | |
| 809 connection has no PID; you cannot signal it. All you can do is | |
| 810 deactivate and close it via delete-process */ | |
| 811 | |
| 442 | 812 DEFUN ("open-network-stream-internal", Fopen_network_stream_internal, 4, 5, |
| 813 0, /* | |
| 428 | 814 Open a TCP connection for a service to a host. |
| 444 | 815 Return a process object to represent the connection. |
| 428 | 816 Input and output work as for subprocesses; `delete-process' closes it. |
| 817 | |
| 818 NAME is name for process. It is modified if necessary to make it unique. | |
| 819 BUFFER is the buffer (or buffer-name) to associate with the process. | |
| 820 Process output goes at end of that buffer, unless you specify | |
| 821 an output stream or filter function to handle the output. | |
| 822 BUFFER may also be nil, meaning that this process is not associated | |
| 823 with any buffer. | |
| 444 | 824 Third arg HOST (a string) is the name of the host to connect to, |
| 825 or its IP address. | |
| 826 Fourth arg SERVICE is the name of the service desired (a string), | |
| 827 or an integer specifying a port number to connect to. | |
| 3025 | 828 Optional fifth arg PROTOCOL is a network protocol. Currently only `tcp' |
| 829 (Transmission Control Protocol) and `udp' (User Datagram Protocol) are | |
| 830 supported. When omitted, `tcp' is assumed. | |
| 428 | 831 |
| 442 | 832 Output via `process-send-string' and input via buffer or filter (see |
| 428 | 833 `set-process-filter') are stream-oriented. That means UDP datagrams are |
| 834 not guaranteed to be sent and received in discrete packets. (But small | |
| 835 datagrams around 500 bytes that are not truncated by `process-send-string' | |
| 444 | 836 are usually fine.) Note further that the UDP protocol does not guard |
| 837 against lost packets. | |
| 428 | 838 */ |
| 839 (name, buffer, host, service, protocol)) | |
| 840 { | |
| 841 /* This function can GC */ | |
| 444 | 842 Lisp_Object process = Qnil; |
| 428 | 843 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, ngcpro1; |
| 844 void *inch, *outch; | |
| 845 | |
| 846 GCPRO5 (name, buffer, host, service, protocol); | |
| 847 CHECK_STRING (name); | |
| 848 | |
| 771 | 849 if (NILP (protocol)) |
| 428 | 850 protocol = Qtcp; |
| 851 else | |
| 852 CHECK_SYMBOL (protocol); | |
| 853 | |
| 854 /* Since this code is inside HAVE_SOCKETS, existence of | |
| 855 open_network_stream is mandatory */ | |
| 856 PROCMETH (open_network_stream, (name, host, service, protocol, | |
| 857 &inch, &outch)); | |
| 858 | |
| 859 if (!NILP (buffer)) | |
| 860 buffer = Fget_buffer_create (buffer); | |
| 444 | 861 process = make_process_internal (name); |
| 862 NGCPRO1 (process); | |
| 428 | 863 |
| 444 | 864 XPROCESS (process)->pid = Fcons (service, host); |
| 865 XPROCESS (process)->buffer = buffer; | |
| 771 | 866 init_process_io_handles (XPROCESS (process), (void *) inch, (void *) outch, |
| 853 | 867 (void *) -1, |
| 428 | 868 STREAM_NETWORK_CONNECTION); |
| 869 | |
| 853 | 870 event_stream_select_process (XPROCESS (process), 1, 1); |
| 428 | 871 |
| 1204 | 872 NUNGCPRO; |
| 428 | 873 UNGCPRO; |
| 444 | 874 return process; |
| 428 | 875 } |
| 876 | |
| 877 #ifdef HAVE_MULTICAST | |
| 878 | |
| 879 DEFUN ("open-multicast-group-internal", Fopen_multicast_group_internal, 5, 5, 0, /* | |
| 880 Open a multicast connection on the specified dest/port/ttl. | |
| 444 | 881 Return a process object to represent the connection. |
| 428 | 882 Input and output work as for subprocesses; `delete-process' closes it. |
| 883 | |
| 884 NAME is name for process. It is modified if necessary to make it unique. | |
| 885 BUFFER is the buffer (or buffer-name) to associate with the process. | |
| 886 Process output goes at end of that buffer, unless you specify | |
| 887 an output stream or filter function to handle the output. | |
| 888 BUFFER may also be nil, meaning that this process is not associated | |
| 889 with any buffer. | |
| 890 Third, fourth and fifth args are the multicast destination group, port and ttl. | |
| 891 dest must be an internet address between 224.0.0.0 and 239.255.255.255 | |
| 892 port is a communication port like in traditional unicast | |
| 893 ttl is the time-to-live (15 for site, 63 for region and 127 for world) | |
| 894 */ | |
| 895 (name, buffer, dest, port, ttl)) | |
| 896 { | |
| 897 /* This function can GC */ | |
| 444 | 898 Lisp_Object process = Qnil; |
| 428 | 899 struct gcpro gcpro1; |
| 900 void *inch, *outch; | |
| 901 | |
| 902 CHECK_STRING (name); | |
| 903 | |
| 904 /* Since this code is inside HAVE_MULTICAST, existence of | |
| 771 | 905 open_multicast_group is mandatory */ |
| 428 | 906 PROCMETH (open_multicast_group, (name, dest, port, ttl, |
| 907 &inch, &outch)); | |
| 908 | |
| 909 if (!NILP (buffer)) | |
| 910 buffer = Fget_buffer_create (buffer); | |
| 911 | |
| 444 | 912 process = make_process_internal (name); |
| 913 GCPRO1 (process); | |
| 428 | 914 |
| 444 | 915 XPROCESS (process)->pid = Fcons (port, dest); |
| 916 XPROCESS (process)->buffer = buffer; | |
| 853 | 917 init_process_io_handles (XPROCESS (process), (void *) inch, (void *) outch, |
| 918 (void *) -1, | |
| 428 | 919 STREAM_NETWORK_CONNECTION); |
| 920 | |
| 853 | 921 event_stream_select_process (XPROCESS (process), 1, 1); |
| 428 | 922 |
| 923 UNGCPRO; | |
| 444 | 924 return process; |
| 428 | 925 } |
| 926 #endif /* HAVE_MULTICAST */ | |
| 927 | |
| 928 #endif /* HAVE_SOCKETS */ | |
| 929 | |
| 930 Lisp_Object | |
| 931 canonicalize_host_name (Lisp_Object host) | |
| 932 { | |
| 933 return PROCMETH_OR_GIVEN (canonicalize_host_name, (host), host); | |
| 934 } | |
| 935 | |
| 936 | |
| 937 DEFUN ("set-process-window-size", Fset_process_window_size, 3, 3, 0, /* | |
| 938 Tell PROCESS that it has logical window size HEIGHT and WIDTH. | |
| 939 */ | |
| 444 | 940 (process, height, width)) |
| 428 | 941 { |
| 444 | 942 CHECK_PROCESS (process); |
| 428 | 943 CHECK_NATNUM (height); |
| 944 CHECK_NATNUM (width); | |
| 945 return | |
| 444 | 946 MAYBE_INT_PROCMETH (set_window_size, |
| 947 (XPROCESS (process), XINT (height), XINT (width))) <= 0 | |
| 428 | 948 ? Qnil : Qt; |
| 949 } | |
| 950 | |
| 951 | |
| 952 /************************************************************************/ | |
| 953 /* Process I/O */ | |
| 954 /************************************************************************/ | |
| 955 | |
| 844 | 956 /* Set up PROCESS's buffer for insertion of process data at PROCESS's |
| 957 mark. | |
| 958 | |
| 959 Sets the current buffer to PROCESS's buffer, inhibits read only, | |
| 960 remembers current point, sets point to PROCESS'S mark, widens if | |
| 961 necessary. | |
| 962 */ | |
| 963 static int | |
| 853 | 964 process_setup_for_insertion (Lisp_Object process, int read_stderr) |
| 844 | 965 { |
| 966 Lisp_Process *p = XPROCESS (process); | |
| 967 int spec = specpdl_depth (); | |
| 853 | 968 Lisp_Object buffer = read_stderr ? p->stderr_buffer : p->buffer; |
| 969 Lisp_Object mark = read_stderr ? p->stderr_mark : p->mark; | |
| 970 struct buffer *buf = XBUFFER (buffer); | |
| 844 | 971 Charbpos output_pt; |
| 972 | |
| 973 if (buf != current_buffer) | |
| 974 { | |
| 975 record_unwind_protect (save_current_buffer_restore, | |
| 976 Fcurrent_buffer ()); | |
| 977 set_buffer_internal (buf); | |
| 978 } | |
| 979 | |
| 980 record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
| 981 specbind (Qinhibit_read_only, Qt); | |
| 854 | 982 |
| 844 | 983 /* Insert new output into buffer |
| 984 at the current end-of-output marker, | |
| 985 thus preserving logical ordering of input and output. */ | |
| 853 | 986 if (XMARKER (mark)->buffer) |
| 987 output_pt = marker_position (mark); | |
| 844 | 988 else |
| 989 output_pt = BUF_ZV (buf); | |
| 990 | |
| 991 /* If the output marker is outside of the visible region, save | |
| 992 the restriction and widen. */ | |
| 993 if (! (BUF_BEGV (buf) <= output_pt && output_pt <= BUF_ZV (buf))) | |
| 994 { | |
| 995 record_unwind_protect (save_restriction_restore, | |
| 996 save_restriction_save (buf)); | |
| 997 Fwiden (wrap_buffer (buf)); | |
| 998 } | |
| 999 | |
| 1000 BUF_SET_PT (buf, output_pt); | |
| 1001 return spec; | |
| 1002 } | |
| 1003 | |
| 428 | 1004 /* Read pending output from the process channel, |
| 1005 starting with our buffered-ahead character if we have one. | |
| 1006 Yield number of characters read. | |
| 1007 | |
| 1008 This function reads at most 1024 bytes. | |
| 1009 If you want to read all available subprocess output, | |
| 1010 you must call it repeatedly until it returns zero. */ | |
| 1011 | |
| 1012 Charcount | |
| 853 | 1013 read_process_output (Lisp_Object process, int read_stderr) |
| 428 | 1014 { |
| 1015 /* This function can GC */ | |
| 1016 Bytecount nbytes, nchars; | |
| 867 | 1017 Ibyte chars[1025]; |
| 428 | 1018 Lisp_Object outstream; |
| 444 | 1019 Lisp_Process *p = XPROCESS (process); |
| 853 | 1020 Lisp_Object filter = read_stderr ? p->stderr_filter : p->filter; |
| 1021 Lisp_Object buffer = read_stderr ? p->stderr_buffer : p->buffer; | |
| 1022 Lisp_Object mark = read_stderr ? p->stderr_mark : p->mark; | |
| 428 | 1023 |
| 1024 /* If there is a lot of output from the subprocess, the loop in | |
| 1025 execute_internal_event() might call read_process_output() more | |
| 1026 than once. If the filter that was executed from one of these | |
| 1027 calls set the filter to t, we have to stop now. Return -1 rather | |
| 1028 than 0 so execute_internal_event() doesn't close the process. | |
| 1029 Really, the loop in execute_internal_event() should check itself | |
| 1030 for a process-filter change, like in status_notify(); but the | |
| 1031 struct Lisp_Process is not exported outside of this file. */ | |
| 863 | 1032 if (!PROCESS_READABLE_P (p)) |
| 853 | 1033 { |
| 1034 errno = 0; | |
| 1035 return -1; /* already closed */ | |
| 1036 } | |
| 428 | 1037 |
| 853 | 1038 if (!NILP (filter) && (p->filter_does_read)) |
| 428 | 1039 { |
| 1040 Lisp_Object filter_result; | |
| 1041 | |
| 1042 /* Some weird FSFmacs crap here with | |
| 853 | 1043 Vdeactivate_mark and current_buffer->keymap. |
| 1044 Some FSF junk with running_asynch_code, to preserve the match | |
| 1045 data. Not necessary because we don't call process filters | |
| 1046 asynchronously (i.e. from within QUIT). */ | |
| 1047 /* Don't catch errors here; we're not in any critical code. */ | |
| 1048 filter_result = call2 (filter, process, Qnil); | |
| 428 | 1049 CHECK_INT (filter_result); |
| 1050 return XINT (filter_result); | |
| 1051 } | |
| 1052 | |
| 853 | 1053 nbytes = Lstream_read (read_stderr ? XLSTREAM (DATA_ERRSTREAM (p)) : |
| 1054 XLSTREAM (DATA_INSTREAM (p)), chars, | |
| 771 | 1055 sizeof (chars) - 1); |
| 428 | 1056 if (nbytes <= 0) return nbytes; |
| 1057 | |
| 771 | 1058 if (debug_process_io) |
| 1059 { | |
| 1060 chars[nbytes] = '\0'; | |
| 1061 stderr_out ("Read: %s\n", chars); | |
| 1062 } | |
| 1063 | |
| 1064 /* !!#### if the coding system changed as a result of reading, we | |
| 1065 need to change the output coding system accordingly. */ | |
| 428 | 1066 nchars = bytecount_to_charcount (chars, nbytes); |
| 853 | 1067 outstream = filter; |
| 428 | 1068 if (!NILP (outstream)) |
| 1069 { | |
| 853 | 1070 /* Some FSF junk with running_asynch_code, to preserve the match |
| 1071 data. Not necessary because we don't call process filters | |
| 1072 asynchronously (i.e. from within QUIT). */ | |
| 1073 /* Don't catch errors here; we're not in any critical code. */ | |
| 1074 call2 (outstream, process, make_string (chars, nbytes)); | |
| 428 | 1075 return nchars; |
| 1076 } | |
| 1077 | |
| 1078 /* If no filter, write into buffer if it isn't dead. */ | |
| 853 | 1079 if (!NILP (buffer) && BUFFER_LIVE_P (XBUFFER (buffer))) |
| 428 | 1080 { |
| 844 | 1081 struct gcpro gcpro1; |
| 853 | 1082 struct buffer *buf = XBUFFER (buffer); |
| 1083 int spec = process_setup_for_insertion (process, read_stderr); | |
| 428 | 1084 |
| 844 | 1085 GCPRO1 (process); |
| 428 | 1086 |
| 1087 #if 0 | |
| 1088 /* This screws up initial display of the window. jla */ | |
| 1089 | |
| 1090 /* Insert before markers in case we are inserting where | |
| 1091 the buffer's mark is, and the user's next command is Meta-y. */ | |
| 1092 buffer_insert_raw_string_1 (buf, -1, chars, | |
| 1093 nbytes, INSDEL_BEFORE_MARKERS); | |
| 1094 #else | |
| 1095 buffer_insert_raw_string (buf, chars, nbytes); | |
| 1096 #endif | |
| 1097 | |
| 853 | 1098 Fset_marker (mark, make_int (BUF_PT (buf)), buffer); |
| 1099 | |
| 428 | 1100 MARK_MODELINE_CHANGED; |
| 844 | 1101 unbind_to (spec); |
| 428 | 1102 UNGCPRO; |
| 1103 } | |
| 1104 return nchars; | |
| 1105 } | |
| 853 | 1106 |
| 1107 int | |
| 1108 process_has_separate_stderr (Lisp_Object process) | |
| 1109 { | |
| 1110 return XPROCESS (process)->separate_stderr; | |
| 1111 } | |
| 1112 | |
| 859 | 1113 DEFUN ("process-has-separate-stderr-p", Fprocess_has_separate_stderr_p, 1, 1, |
| 1114 0, /* | |
| 1115 Return non-nil if process has stderr separate from stdout. | |
| 1116 */ | |
| 1117 (process)) | |
| 1118 { | |
| 1119 CHECK_PROCESS (process); | |
| 1120 return process_has_separate_stderr (process) ? Qt : Qnil; | |
| 1121 } | |
| 1122 | |
| 428 | 1123 |
| 1124 /* Sending data to subprocess */ | |
| 1125 | |
| 444 | 1126 /* send some data to process PROCESS. If NONRELOCATABLE is non-NULL, it |
| 428 | 1127 specifies the address of the data. Otherwise, the data comes from the |
| 1128 object RELOCATABLE (either a string or a buffer). START and LEN | |
| 1129 specify the offset and length of the data to send. | |
| 1130 | |
| 665 | 1131 Note that START and LEN are in Charbpos's if RELOCATABLE is a buffer, |
| 428 | 1132 and in Bytecounts otherwise. */ |
| 1133 | |
| 1134 void | |
| 444 | 1135 send_process (Lisp_Object process, |
| 867 | 1136 Lisp_Object relocatable, const Ibyte *nonrelocatable, |
| 428 | 1137 int start, int len) |
| 1138 { | |
| 1139 /* This function can GC */ | |
| 1140 struct gcpro gcpro1, gcpro2; | |
| 1141 Lisp_Object lstream = Qnil; | |
| 1142 | |
| 444 | 1143 GCPRO2 (process, lstream); |
| 428 | 1144 |
| 444 | 1145 if (NILP (DATA_OUTSTREAM (XPROCESS (process)))) |
| 563 | 1146 invalid_operation ("Process not open for writing", process); |
| 428 | 1147 |
| 1148 if (nonrelocatable) | |
| 1149 lstream = | |
| 1150 make_fixed_buffer_input_stream (nonrelocatable + start, len); | |
| 1151 else if (BUFFERP (relocatable)) | |
| 1152 lstream = make_lisp_buffer_input_stream (XBUFFER (relocatable), | |
| 1153 start, start + len, 0); | |
| 1154 else | |
| 1155 lstream = make_lisp_string_input_stream (relocatable, start, len); | |
| 1156 | |
| 771 | 1157 if (debug_process_io) |
| 1158 { | |
| 1159 if (nonrelocatable) | |
| 1160 stderr_out ("Writing: %s\n", nonrelocatable); | |
| 1161 else | |
| 1162 { | |
| 1163 stderr_out ("Writing: "); | |
| 1164 print_internal (relocatable, Qexternal_debugging_output, 0); | |
| 1165 } | |
| 1166 } | |
| 1167 | |
| 444 | 1168 PROCMETH (send_process, (process, XLSTREAM (lstream))); |
| 428 | 1169 |
| 1170 UNGCPRO; | |
| 1171 Lstream_delete (XLSTREAM (lstream)); | |
| 1172 } | |
| 1173 | |
| 1174 DEFUN ("process-tty-name", Fprocess_tty_name, 1, 1, 0, /* | |
| 1175 Return the name of the terminal PROCESS uses, or nil if none. | |
| 1176 This is the terminal that the process itself reads and writes on, | |
| 1177 not the name of the pty that Emacs uses to talk with that terminal. | |
| 1178 */ | |
| 444 | 1179 (process)) |
| 428 | 1180 { |
| 444 | 1181 CHECK_PROCESS (process); |
| 1204 | 1182 return XPROCESS (process)->tty_name; |
| 428 | 1183 } |
| 1184 | |
| 1185 DEFUN ("set-process-buffer", Fset_process_buffer, 2, 2, 0, /* | |
| 1186 Set buffer associated with PROCESS to BUFFER (a buffer, or nil). | |
| 2297 | 1187 Output from PROCESS is inserted in this buffer unless PROCESS has a filter. |
| 428 | 1188 */ |
| 444 | 1189 (process, buffer)) |
| 428 | 1190 { |
| 444 | 1191 CHECK_PROCESS (process); |
| 428 | 1192 if (!NILP (buffer)) |
| 1193 CHECK_BUFFER (buffer); | |
| 444 | 1194 XPROCESS (process)->buffer = buffer; |
| 428 | 1195 return buffer; |
| 1196 } | |
| 1197 | |
| 1198 DEFUN ("process-buffer", Fprocess_buffer, 1, 1, 0, /* | |
| 1199 Return the buffer PROCESS is associated with. | |
| 2297 | 1200 Output from PROCESS is inserted in this buffer unless PROCESS has a filter. |
| 1201 Set the buffer with `set-process-buffer'. | |
| 428 | 1202 */ |
| 444 | 1203 (process)) |
| 428 | 1204 { |
| 444 | 1205 CHECK_PROCESS (process); |
| 1206 return XPROCESS (process)->buffer; | |
| 428 | 1207 } |
| 1208 | |
| 853 | 1209 DEFUN ("set-process-stderr-buffer", Fset_process_stderr_buffer, 2, 2, 0, /* |
| 2297 | 1210 Output from the stderr of PROCESS is inserted in this buffer unless |
| 1211 PROCESS has a stderr filter. | |
| 853 | 1212 Set stderr buffer associated with PROCESS to BUFFER (a buffer, or nil). |
| 1213 */ | |
| 1214 (process, buffer)) | |
| 1215 { | |
| 1216 CHECK_PROCESS (process); | |
| 1217 if (!XPROCESS (process)->separate_stderr) | |
| 1218 invalid_change ("stdout and stderr not separate", process); | |
| 1219 if (!NILP (buffer)) | |
| 1220 CHECK_BUFFER (buffer); | |
| 1221 XPROCESS (process)->stderr_buffer = buffer; | |
| 1222 return buffer; | |
| 1223 } | |
| 1224 | |
| 1225 DEFUN ("process-stderr-buffer", Fprocess_stderr_buffer, 1, 1, 0, /* | |
| 1226 Return the stderr buffer PROCESS is associated with. | |
| 2297 | 1227 Output from the stderr of PROCESS is inserted in this buffer unless PROCESS |
| 1228 has a stderr filter. Set the buffer with `set-process-stderr-buffer'. | |
| 853 | 1229 */ |
| 1230 (process)) | |
| 1231 { | |
| 1232 CHECK_PROCESS (process); | |
| 1233 if (!XPROCESS (process)->separate_stderr) | |
| 1234 invalid_change ("stdout and stderr not separate", process); | |
| 1235 return XPROCESS (process)->stderr_buffer; | |
| 1236 } | |
| 1237 | |
| 428 | 1238 DEFUN ("process-mark", Fprocess_mark, 1, 1, 0, /* |
| 1239 Return the marker for the end of the last output from PROCESS. | |
| 1240 */ | |
| 444 | 1241 (process)) |
| 428 | 1242 { |
| 444 | 1243 CHECK_PROCESS (process); |
| 1244 return XPROCESS (process)->mark; | |
| 428 | 1245 } |
| 1246 | |
| 853 | 1247 DEFUN ("process-stderr-mark", Fprocess_stderr_mark, 1, 1, 0, /* |
| 1248 Return the marker for the end of the last stderr output from PROCESS. | |
| 1249 */ | |
| 1250 (process)) | |
| 1251 { | |
| 1252 CHECK_PROCESS (process); | |
| 1253 if (!XPROCESS (process)->separate_stderr) | |
| 1254 invalid_operation ("stdout and stderr not separate", process); | |
| 1255 return XPROCESS (process)->stderr_mark; | |
| 1256 } | |
| 1257 | |
| 428 | 1258 void |
| 853 | 1259 set_process_filter (Lisp_Object process, Lisp_Object filter, |
| 1260 int filter_does_read, int set_stderr) | |
| 428 | 1261 { |
| 444 | 1262 CHECK_PROCESS (process); |
| 853 | 1263 if (set_stderr && !XPROCESS (process)->separate_stderr) |
| 1264 invalid_change ("stdout and stderr not separate", process); | |
| 863 | 1265 if (PROCESS_READABLE_P (XPROCESS (process))) |
| 853 | 1266 { |
| 1267 if (EQ (filter, Qt)) | |
| 1268 event_stream_unselect_process (XPROCESS (process), !set_stderr, | |
| 1269 set_stderr); | |
| 1270 else | |
| 1271 event_stream_select_process (XPROCESS (process), !set_stderr, | |
| 1272 set_stderr); | |
| 1273 } | |
| 428 | 1274 |
| 853 | 1275 if (set_stderr) |
| 1276 XPROCESS (process)->stderr_filter = filter; | |
| 1277 else | |
| 1278 XPROCESS (process)->filter = filter; | |
| 444 | 1279 XPROCESS (process)->filter_does_read = filter_does_read; |
| 428 | 1280 } |
| 1281 | |
| 1282 DEFUN ("set-process-filter", Fset_process_filter, 2, 2, 0, /* | |
| 1283 Give PROCESS the filter function FILTER; nil means no filter. | |
| 853 | 1284 t means stop accepting output from the process. (If process was created |
| 854 | 1285 with |
| 853 | 1286 When a process has a filter, each time it does output |
| 1287 the entire string of output is passed to the filter. | |
| 1288 The filter gets two arguments: the process and the string of output. | |
| 1289 If the process has a filter, its buffer is not used for output. | |
| 1290 */ | |
| 1291 (process, filter)) | |
| 1292 { | |
| 1293 set_process_filter (process, filter, 0, 0); | |
| 1294 return filter; | |
| 1295 } | |
| 1296 | |
| 1297 DEFUN ("set-process-stderr-filter", Fset_process_stderr_filter, 2, 2, 0, /* | |
| 1298 Give PROCESS the stderr filter function FILTER; nil means no filter. | |
| 428 | 1299 t means stop accepting output from the process. |
| 1300 When a process has a filter, each time it does output | |
| 1301 the entire string of output is passed to the filter. | |
| 1302 The filter gets two arguments: the process and the string of output. | |
| 1303 If the process has a filter, its buffer is not used for output. | |
| 1304 */ | |
| 444 | 1305 (process, filter)) |
| 428 | 1306 { |
| 853 | 1307 set_process_filter (process, filter, 0, 1); |
| 428 | 1308 return filter; |
| 1309 } | |
| 1310 | |
| 1311 DEFUN ("process-filter", Fprocess_filter, 1, 1, 0, /* | |
| 1312 Return the filter function of PROCESS; nil if none. | |
| 1313 See `set-process-filter' for more info on filter functions. | |
| 1314 */ | |
| 444 | 1315 (process)) |
| 428 | 1316 { |
| 444 | 1317 CHECK_PROCESS (process); |
| 1318 return XPROCESS (process)->filter; | |
| 428 | 1319 } |
| 1320 | |
| 853 | 1321 DEFUN ("process-stderr-filter", Fprocess_stderr_filter, 1, 1, 0, /* |
| 1322 Return the filter function of PROCESS; nil if none. | |
| 1323 See `set-process-stderr-filter' for more info on filter functions. | |
| 1324 */ | |
| 1325 (process)) | |
| 1326 { | |
| 1327 CHECK_PROCESS (process); | |
| 1328 if (!XPROCESS (process)->separate_stderr) | |
| 1329 invalid_operation ("stdout and stderr not separate", process); | |
| 1330 return XPROCESS (process)->stderr_filter; | |
| 1331 } | |
| 1332 | |
| 442 | 1333 DEFUN ("process-send-region", Fprocess_send_region, 3, 4, 0, /* |
| 1334 Send current contents of the region between START and END as input to PROCESS. | |
| 444 | 1335 PROCESS may be a process or the name of a process, or a buffer or the |
| 1336 name of a buffer, in which case the buffer's process is used. If it | |
| 1337 is nil, the current buffer's process is used. | |
| 442 | 1338 BUFFER specifies the buffer to look in; if nil, the current buffer is used. |
| 853 | 1339 If the region is more than 100 or so characters long, it may be sent in |
| 1340 several chunks. This may happen even for shorter regions. Output | |
| 444 | 1341 from processes can arrive in between chunks. |
| 428 | 1342 */ |
| 442 | 1343 (process, start, end, buffer)) |
| 428 | 1344 { |
| 1345 /* This function can GC */ | |
| 665 | 1346 Charbpos bstart, bend; |
| 442 | 1347 struct buffer *buf = decode_buffer (buffer, 0); |
| 428 | 1348 |
| 793 | 1349 buffer = wrap_buffer (buf); |
| 444 | 1350 process = get_process (process); |
| 1351 get_buffer_range_char (buf, start, end, &bstart, &bend, 0); | |
| 442 | 1352 |
| 444 | 1353 send_process (process, buffer, 0, bstart, bend - bstart); |
| 428 | 1354 return Qnil; |
| 1355 } | |
| 1356 | |
| 1357 DEFUN ("process-send-string", Fprocess_send_string, 2, 4, 0, /* | |
| 1358 Send PROCESS the contents of STRING as input. | |
| 444 | 1359 PROCESS may be a process or the name of a process, or a buffer or the |
| 1360 name of a buffer, in which case the buffer's process is used. If it | |
| 1361 is nil, the current buffer's process is used. | |
| 1362 Optional arguments START and END specify part of STRING; see `substring'. | |
| 1363 If STRING is more than 100 or so characters long, it may be sent in | |
| 1364 several chunks. This may happen even for shorter strings. Output | |
| 1365 from processes can arrive in between chunks. | |
| 428 | 1366 */ |
| 444 | 1367 (process, string, start, end)) |
| 428 | 1368 { |
| 1369 /* This function can GC */ | |
| 444 | 1370 Bytecount bstart, bend; |
| 428 | 1371 |
| 444 | 1372 process = get_process (process); |
| 428 | 1373 CHECK_STRING (string); |
| 444 | 1374 get_string_range_byte (string, start, end, &bstart, &bend, |
| 428 | 1375 GB_HISTORICAL_STRING_BEHAVIOR); |
| 1376 | |
| 444 | 1377 send_process (process, string, 0, bstart, bend - bstart); |
| 428 | 1378 return Qnil; |
| 1379 } | |
| 1380 | |
| 1381 | |
| 1382 DEFUN ("process-input-coding-system", Fprocess_input_coding_system, 1, 1, 0, /* | |
| 1383 Return PROCESS's input coding system. | |
| 1384 */ | |
| 1385 (process)) | |
| 1386 { | |
| 1387 process = get_process (process); | |
| 863 | 1388 CHECK_READABLE_PROCESS (process); |
| 771 | 1389 return (coding_stream_detected_coding_system |
| 1390 (XLSTREAM (XPROCESS (process)->coding_instream))); | |
| 428 | 1391 } |
| 1392 | |
| 1393 DEFUN ("process-output-coding-system", Fprocess_output_coding_system, 1, 1, 0, /* | |
| 1394 Return PROCESS's output coding system. | |
| 1395 */ | |
| 1396 (process)) | |
| 1397 { | |
| 1398 process = get_process (process); | |
| 440 | 1399 CHECK_LIVE_PROCESS (process); |
| 771 | 1400 return (coding_stream_coding_system |
| 1401 (XLSTREAM (XPROCESS (process)->coding_outstream))); | |
| 428 | 1402 } |
| 1403 | |
| 1404 DEFUN ("process-coding-system", Fprocess_coding_system, 1, 1, 0, /* | |
| 1405 Return a pair of coding-system for decoding and encoding of PROCESS. | |
| 1406 */ | |
| 1407 (process)) | |
| 1408 { | |
| 1409 process = get_process (process); | |
| 863 | 1410 CHECK_READABLE_PROCESS (process); |
| 771 | 1411 return Fcons (coding_stream_detected_coding_system |
| 428 | 1412 (XLSTREAM (XPROCESS (process)->coding_instream)), |
| 771 | 1413 coding_stream_coding_system |
| 428 | 1414 (XLSTREAM (XPROCESS (process)->coding_outstream))); |
| 1415 } | |
| 1416 | |
| 1417 DEFUN ("set-process-input-coding-system", Fset_process_input_coding_system, | |
| 1418 2, 2, 0, /* | |
| 1419 Set PROCESS's input coding system to CODESYS. | |
| 771 | 1420 This is used for reading data from PROCESS. |
| 428 | 1421 */ |
| 1422 (process, codesys)) | |
| 1423 { | |
| 771 | 1424 codesys = get_coding_system_for_text_file (codesys, 1); |
| 428 | 1425 process = get_process (process); |
| 863 | 1426 CHECK_READABLE_PROCESS (process); |
| 440 | 1427 |
| 771 | 1428 set_coding_stream_coding_system |
| 428 | 1429 (XLSTREAM (XPROCESS (process)->coding_instream), codesys); |
| 1430 return Qnil; | |
| 1431 } | |
| 1432 | |
| 1433 DEFUN ("set-process-output-coding-system", Fset_process_output_coding_system, | |
| 1434 2, 2, 0, /* | |
| 1435 Set PROCESS's output coding system to CODESYS. | |
| 771 | 1436 This is used for writing data to PROCESS. |
| 428 | 1437 */ |
| 1438 (process, codesys)) | |
| 1439 { | |
| 771 | 1440 codesys = get_coding_system_for_text_file (codesys, 0); |
| 428 | 1441 process = get_process (process); |
| 440 | 1442 CHECK_LIVE_PROCESS (process); |
| 1443 | |
| 771 | 1444 set_coding_stream_coding_system |
| 428 | 1445 (XLSTREAM (XPROCESS (process)->coding_outstream), codesys); |
| 1446 return Qnil; | |
| 1447 } | |
| 1448 | |
| 1449 DEFUN ("set-process-coding-system", Fset_process_coding_system, | |
| 1450 1, 3, 0, /* | |
| 1451 Set coding-systems of PROCESS to DECODING and ENCODING. | |
| 440 | 1452 DECODING will be used to decode subprocess output and ENCODING to |
| 1453 encode subprocess input. | |
| 428 | 1454 */ |
| 1455 (process, decoding, encoding)) | |
| 1456 { | |
| 1457 if (!NILP (decoding)) | |
| 1458 Fset_process_input_coding_system (process, decoding); | |
| 1459 | |
| 1460 if (!NILP (encoding)) | |
| 1461 Fset_process_output_coding_system (process, encoding); | |
| 1462 | |
| 1463 return Qnil; | |
| 1464 } | |
| 1465 | |
| 1466 | |
| 1467 /************************************************************************/ | |
| 1468 /* process status */ | |
| 1469 /************************************************************************/ | |
| 1470 | |
| 1471 static Lisp_Object | |
| 1472 exec_sentinel_unwind (Lisp_Object datum) | |
| 1473 { | |
| 853 | 1474 XPROCESS (XCAR (datum))->sentinel = XCDR (datum); |
| 1475 free_cons (datum); | |
| 428 | 1476 return Qnil; |
| 1477 } | |
| 1478 | |
| 1479 static void | |
| 444 | 1480 exec_sentinel (Lisp_Object process, Lisp_Object reason) |
| 428 | 1481 { |
| 1482 /* This function can GC */ | |
| 1483 int speccount = specpdl_depth (); | |
| 444 | 1484 Lisp_Process *p = XPROCESS (process); |
| 428 | 1485 Lisp_Object sentinel = p->sentinel; |
| 1486 | |
| 1487 if (NILP (sentinel)) | |
| 1488 return; | |
| 1489 | |
| 1490 /* Some weird FSFmacs crap here with | |
| 1491 Vdeactivate_mark and current_buffer->keymap */ | |
| 1492 | |
| 853 | 1493 /* Some FSF junk with running_asynch_code, to preserve the match |
| 1494 data. Not necessary because we don't call process filters | |
| 1495 asynchronously (i.e. from within QUIT). */ | |
| 1496 | |
| 428 | 1497 /* Zilch the sentinel while it's running, to avoid recursive invocations; |
| 853 | 1498 assure that it gets restored no matter how the sentinel exits. |
| 1499 | |
| 1500 (#### Why is this necessary? Probably another relic of asynchronous | |
| 1501 calling of process filters/sentinels.) */ | |
| 428 | 1502 p->sentinel = Qnil; |
| 853 | 1503 record_unwind_protect (exec_sentinel_unwind, |
| 1504 noseeum_cons (process, sentinel)); | |
| 1505 /* Don't catch errors here; we're not in any critical code. */ | |
| 1506 call2 (sentinel, process, reason); | |
| 771 | 1507 unbind_to (speccount); |
| 428 | 1508 } |
| 1509 | |
| 1510 DEFUN ("set-process-sentinel", Fset_process_sentinel, 2, 2, 0, /* | |
| 1511 Give PROCESS the sentinel SENTINEL; nil for none. | |
| 1512 The sentinel is called as a function when the process changes state. | |
| 1513 It gets two arguments: the process, and a string describing the change. | |
| 1514 */ | |
| 444 | 1515 (process, sentinel)) |
| 428 | 1516 { |
| 444 | 1517 CHECK_PROCESS (process); |
| 1518 XPROCESS (process)->sentinel = sentinel; | |
| 428 | 1519 return sentinel; |
| 1520 } | |
| 1521 | |
| 1522 DEFUN ("process-sentinel", Fprocess_sentinel, 1, 1, 0, /* | |
| 1523 Return the sentinel of PROCESS; nil if none. | |
| 1524 See `set-process-sentinel' for more info on sentinels. | |
| 1525 */ | |
| 444 | 1526 (process)) |
| 428 | 1527 { |
| 444 | 1528 CHECK_PROCESS (process); |
| 1529 return XPROCESS (process)->sentinel; | |
| 428 | 1530 } |
| 1531 | |
| 1532 | |
| 442 | 1533 const char * |
| 428 | 1534 signal_name (int signum) |
| 1535 { | |
| 1536 if (signum >= 0 && signum < NSIG) | |
| 442 | 1537 return (const char *) sys_siglist[signum]; |
| 428 | 1538 |
| 442 | 1539 return (const char *) GETTEXT ("unknown signal"); |
| 428 | 1540 } |
| 1541 | |
| 1542 void | |
| 1543 update_process_status (Lisp_Object p, | |
| 1544 Lisp_Object status_symbol, | |
| 1545 int exit_code, | |
| 1546 int core_dumped) | |
| 1547 { | |
| 1548 XPROCESS (p)->tick++; | |
| 1549 process_tick++; | |
| 1550 XPROCESS (p)->status_symbol = status_symbol; | |
| 1551 XPROCESS (p)->exit_code = exit_code; | |
| 1552 XPROCESS (p)->core_dumped = core_dumped; | |
| 1553 } | |
| 1554 | |
| 1555 /* Return a string describing a process status list. */ | |
| 1556 | |
| 1557 static Lisp_Object | |
| 440 | 1558 status_message (Lisp_Process *p) |
| 428 | 1559 { |
| 1560 Lisp_Object symbol = p->status_symbol; | |
| 1561 int code = p->exit_code; | |
| 1562 int coredump = p->core_dumped; | |
| 1563 Lisp_Object string, string2; | |
| 1564 | |
| 1565 if (EQ (symbol, Qsignal) || EQ (symbol, Qstop)) | |
| 1566 { | |
|
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1567 string = build_cistring (signal_name (code)); |
| 428 | 1568 if (coredump) |
| 771 | 1569 string2 = build_msg_string (" (core dumped)\n"); |
| 428 | 1570 else |
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1571 string2 = build_ascstring ("\n"); |
| 793 | 1572 set_string_char (string, 0, |
| 867 | 1573 DOWNCASE (0, string_ichar (string, 0))); |
| 428 | 1574 return concat2 (string, string2); |
| 1575 } | |
| 1576 else if (EQ (symbol, Qexit)) | |
| 1577 { | |
| 1578 if (code == 0) | |
| 771 | 1579 return build_msg_string ("finished\n"); |
| 428 | 1580 string = Fnumber_to_string (make_int (code)); |
| 1581 if (coredump) | |
| 771 | 1582 string2 = build_msg_string (" (core dumped)\n"); |
| 428 | 1583 else |
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1584 string2 = build_ascstring ("\n"); |
| 771 | 1585 return concat2 (build_msg_string ("exited abnormally with code "), |
| 428 | 1586 concat2 (string, string2)); |
| 1587 } | |
| 1588 else | |
| 1589 return Fcopy_sequence (Fsymbol_name (symbol)); | |
| 1590 } | |
| 1591 | |
| 1592 /* Tell status_notify() to check for terminated processes. We do this | |
| 1593 because on some systems we sometimes miss SIGCHLD calls. (Not sure | |
| 853 | 1594 why.) This is also used under Mswin. */ |
| 428 | 1595 |
| 1596 void | |
| 1597 kick_status_notify (void) | |
| 1598 { | |
| 1599 process_tick++; | |
| 1600 } | |
| 1601 | |
| 1602 | |
| 1603 /* Report all recent events of a change in process status | |
| 1604 (either run the sentinel or output a message). | |
| 1605 This is done while Emacs is waiting for keyboard input. */ | |
| 1606 | |
| 1607 void | |
| 1608 status_notify (void) | |
| 1609 { | |
| 1610 /* This function can GC */ | |
| 1611 Lisp_Object tail = Qnil; | |
| 1612 Lisp_Object symbol = Qnil; | |
| 1613 Lisp_Object msg = Qnil; | |
| 1614 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 1615 /* process_tick is volatile, so we have to remember it now. | |
| 444 | 1616 Otherwise, we get a race condition if SIGCHLD happens during |
| 428 | 1617 this function. |
| 1618 | |
| 1619 (Actually, this is not the case anymore. The code to | |
| 1620 update the process structures has been moved out of the | |
| 1621 SIGCHLD handler. But for the moment I'm leaving this | |
| 1622 stuff in -- it can't hurt.) */ | |
| 1623 int temp_process_tick; | |
| 1624 | |
| 1625 MAYBE_PROCMETH (reap_exited_processes, ()); | |
| 1626 | |
| 1627 temp_process_tick = process_tick; | |
| 1628 | |
| 1629 if (update_tick == temp_process_tick) | |
| 1630 return; | |
| 1631 | |
| 1632 /* We need to gcpro tail; if read_process_output calls a filter | |
| 1633 which deletes a process and removes the cons to which tail points | |
| 1634 from Vprocess_alist, and then causes a GC, tail is an unprotected | |
| 1635 reference. */ | |
| 1636 GCPRO3 (tail, symbol, msg); | |
| 1637 | |
| 1638 for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail)) | |
| 1639 { | |
| 444 | 1640 Lisp_Object process = XCAR (tail); |
| 1641 Lisp_Process *p = XPROCESS (process); | |
| 428 | 1642 /* p->tick is also volatile. Same thing as above applies. */ |
| 1643 int this_process_tick; | |
| 1644 | |
| 1645 /* #### extra check for terminated processes, in case a SIGCHLD | |
| 1646 got missed (this seems to happen sometimes, I'm not sure why). | |
| 1647 */ | |
| 1648 if (INTP (p->pid)) | |
| 1649 MAYBE_PROCMETH (update_status_if_terminated, (p)); | |
| 1650 | |
| 1651 this_process_tick = p->tick; | |
| 1652 if (this_process_tick != p->update_tick) | |
| 1653 { | |
| 1654 p->update_tick = this_process_tick; | |
| 1655 | |
| 1656 /* If process is still active, read any output that remains. */ | |
| 1657 while (!EQ (p->filter, Qt) | |
| 853 | 1658 && read_process_output (process, 0) > 0) |
| 1659 ; | |
| 1660 while (p->separate_stderr && !EQ (p->stderr_filter, Qt) | |
| 1661 && read_process_output (process, 1) > 0) | |
| 428 | 1662 ; |
| 1663 | |
| 1664 /* Get the text to use for the message. */ | |
| 1665 msg = status_message (p); | |
| 1666 | |
| 1667 /* If process is terminated, deactivate it or delete it. */ | |
| 1668 symbol = p->status_symbol; | |
| 1669 | |
| 1670 if (EQ (symbol, Qsignal) | |
| 1671 || EQ (symbol, Qexit)) | |
| 1672 { | |
| 1673 if (delete_exited_processes) | |
| 444 | 1674 remove_process (process); |
| 428 | 1675 else |
| 444 | 1676 deactivate_process (process); |
| 428 | 1677 } |
| 1678 | |
| 1679 /* Now output the message suitably. */ | |
| 1680 if (!NILP (p->sentinel)) | |
| 444 | 1681 exec_sentinel (process, msg); |
| 428 | 1682 /* Don't bother with a message in the buffer |
| 1683 when a process becomes runnable. */ | |
| 844 | 1684 else if (!EQ (symbol, Qrun) && !NILP (p->buffer) && |
| 1685 /* Avoid error if buffer is deleted | |
| 1686 (probably that's why the process is dead, too) */ | |
| 1687 BUFFER_LIVE_P (XBUFFER (p->buffer))) | |
| 428 | 1688 { |
| 844 | 1689 struct gcpro ngcpro1; |
| 853 | 1690 int spec = process_setup_for_insertion (process, 0); |
| 428 | 1691 |
| 844 | 1692 NGCPRO1 (process); |
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1693 buffer_insert_ascstring (current_buffer, "\nProcess "); |
| 428 | 1694 Finsert (1, &p->name); |
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1695 buffer_insert_ascstring (current_buffer, " "); |
| 428 | 1696 Finsert (1, &msg); |
| 1697 Fset_marker (p->mark, make_int (BUF_PT (current_buffer)), | |
| 1698 p->buffer); | |
| 1699 | |
| 844 | 1700 unbind_to (spec); |
| 428 | 1701 NUNGCPRO; |
| 1702 } | |
| 1703 } | |
| 1704 } /* end for */ | |
| 1705 | |
| 1706 /* in case buffers use %s in modeline-format */ | |
| 1707 MARK_MODELINE_CHANGED; | |
| 1708 redisplay (); | |
| 1709 | |
| 1710 update_tick = temp_process_tick; | |
| 1711 | |
| 1712 UNGCPRO; | |
| 1713 } | |
| 1714 | |
| 1715 DEFUN ("process-status", Fprocess_status, 1, 1, 0, /* | |
| 1716 Return the status of PROCESS. | |
| 1717 This is a symbol, one of these: | |
| 1718 | |
| 1719 run -- for a process that is running. | |
| 1720 stop -- for a process stopped but continuable. | |
| 1721 exit -- for a process that has exited. | |
| 1722 signal -- for a process that has got a fatal signal. | |
| 1723 open -- for a network stream connection that is open. | |
| 1724 closed -- for a network stream connection that is closed. | |
| 1725 nil -- if arg is a process name and no such process exists. | |
| 1726 | |
| 1727 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 1728 nil, indicating the current buffer's process. | |
| 1729 */ | |
| 444 | 1730 (process)) |
| 428 | 1731 { |
| 1732 Lisp_Object status_symbol; | |
| 1733 | |
| 444 | 1734 if (STRINGP (process)) |
| 1735 process = Fget_process (process); | |
| 428 | 1736 else |
| 444 | 1737 process = get_process (process); |
| 428 | 1738 |
| 444 | 1739 if (NILP (process)) |
| 428 | 1740 return Qnil; |
| 1741 | |
| 444 | 1742 status_symbol = XPROCESS (process)->status_symbol; |
| 1743 if (network_connection_p (process)) | |
| 428 | 1744 { |
| 1745 if (EQ (status_symbol, Qrun)) | |
| 1746 status_symbol = Qopen; | |
| 1747 else if (EQ (status_symbol, Qexit)) | |
| 1748 status_symbol = Qclosed; | |
| 1749 } | |
| 1750 return status_symbol; | |
| 1751 } | |
| 1752 | |
| 1753 DEFUN ("process-exit-status", Fprocess_exit_status, 1, 1, 0, /* | |
| 1754 Return the exit status of PROCESS or the signal number that killed it. | |
| 1755 If PROCESS has not yet exited or died, return 0. | |
| 1756 */ | |
| 444 | 1757 (process)) |
| 428 | 1758 { |
| 444 | 1759 CHECK_PROCESS (process); |
| 1760 return make_int (XPROCESS (process)->exit_code); | |
| 428 | 1761 } |
| 1762 | |
| 1763 | |
| 1764 | |
| 442 | 1765 static int |
| 1766 decode_signal (Lisp_Object signal_) | |
| 428 | 1767 { |
| 442 | 1768 if (INTP (signal_)) |
| 1769 return XINT (signal_); | |
| 428 | 1770 else |
| 1771 { | |
| 867 | 1772 Ibyte *name; |
| 428 | 1773 |
| 442 | 1774 CHECK_SYMBOL (signal_); |
| 793 | 1775 name = XSTRING_DATA (XSYMBOL (signal_)->name); |
| 428 | 1776 |
| 793 | 1777 #define handle_signal(sym) do { \ |
| 2367 | 1778 if (!qxestrcmp_ascii ( name, #sym)) \ |
| 793 | 1779 return sym; \ |
| 442 | 1780 } while (0) |
| 428 | 1781 |
| 1782 handle_signal (SIGINT); /* ANSI */ | |
| 1783 handle_signal (SIGILL); /* ANSI */ | |
| 1784 handle_signal (SIGABRT); /* ANSI */ | |
| 1785 handle_signal (SIGFPE); /* ANSI */ | |
| 1786 handle_signal (SIGSEGV); /* ANSI */ | |
| 1787 handle_signal (SIGTERM); /* ANSI */ | |
| 1788 | |
| 1789 #ifdef SIGHUP | |
| 1790 handle_signal (SIGHUP); /* POSIX */ | |
| 1791 #endif | |
| 1792 #ifdef SIGQUIT | |
| 1793 handle_signal (SIGQUIT); /* POSIX */ | |
| 1794 #endif | |
| 1795 #ifdef SIGTRAP | |
| 1796 handle_signal (SIGTRAP); /* POSIX */ | |
| 1797 #endif | |
| 1798 #ifdef SIGKILL | |
| 1799 handle_signal (SIGKILL); /* POSIX */ | |
| 1800 #endif | |
| 1801 #ifdef SIGUSR1 | |
| 1802 handle_signal (SIGUSR1); /* POSIX */ | |
| 1803 #endif | |
| 1804 #ifdef SIGUSR2 | |
| 1805 handle_signal (SIGUSR2); /* POSIX */ | |
| 1806 #endif | |
| 1807 #ifdef SIGPIPE | |
| 1808 handle_signal (SIGPIPE); /* POSIX */ | |
| 1809 #endif | |
| 1810 #ifdef SIGALRM | |
| 1811 handle_signal (SIGALRM); /* POSIX */ | |
| 1812 #endif | |
| 1813 #ifdef SIGCHLD | |
| 1814 handle_signal (SIGCHLD); /* POSIX */ | |
| 1815 #endif | |
| 1816 #ifdef SIGCONT | |
| 1817 handle_signal (SIGCONT); /* POSIX */ | |
| 1818 #endif | |
| 1819 #ifdef SIGSTOP | |
| 1820 handle_signal (SIGSTOP); /* POSIX */ | |
| 1821 #endif | |
| 1822 #ifdef SIGTSTP | |
| 1823 handle_signal (SIGTSTP); /* POSIX */ | |
| 1824 #endif | |
| 1825 #ifdef SIGTTIN | |
| 1826 handle_signal (SIGTTIN); /* POSIX */ | |
| 1827 #endif | |
| 1828 #ifdef SIGTTOU | |
| 1829 handle_signal (SIGTTOU); /* POSIX */ | |
| 1830 #endif | |
| 1831 | |
| 1832 #ifdef SIGBUS | |
| 1833 handle_signal (SIGBUS); /* XPG5 */ | |
| 1834 #endif | |
| 1835 #ifdef SIGPOLL | |
| 1836 handle_signal (SIGPOLL); /* XPG5 */ | |
| 1837 #endif | |
| 1838 #ifdef SIGPROF | |
| 1839 handle_signal (SIGPROF); /* XPG5 */ | |
| 1840 #endif | |
| 1841 #ifdef SIGSYS | |
| 1842 handle_signal (SIGSYS); /* XPG5 */ | |
| 1843 #endif | |
| 1844 #ifdef SIGURG | |
| 1845 handle_signal (SIGURG); /* XPG5 */ | |
| 1846 #endif | |
| 1847 #ifdef SIGXCPU | |
| 1848 handle_signal (SIGXCPU); /* XPG5 */ | |
| 1849 #endif | |
| 1850 #ifdef SIGXFSZ | |
| 1851 handle_signal (SIGXFSZ); /* XPG5 */ | |
| 1852 #endif | |
| 1853 #ifdef SIGVTALRM | |
| 1854 handle_signal (SIGVTALRM); /* XPG5 */ | |
| 1855 #endif | |
| 1856 | |
| 1857 #ifdef SIGIO | |
| 1858 handle_signal (SIGIO); /* BSD 4.2 */ | |
| 1859 #endif | |
| 1860 #ifdef SIGWINCH | |
| 1861 handle_signal (SIGWINCH); /* BSD 4.3 */ | |
| 1862 #endif | |
| 1863 | |
| 1864 #ifdef SIGEMT | |
| 1865 handle_signal (SIGEMT); | |
| 1866 #endif | |
| 1867 #ifdef SIGINFO | |
| 1868 handle_signal (SIGINFO); | |
| 1869 #endif | |
| 1870 #ifdef SIGHWE | |
| 1871 handle_signal (SIGHWE); | |
| 1872 #endif | |
| 1873 #ifdef SIGPRE | |
| 1874 handle_signal (SIGPRE); | |
| 1875 #endif | |
| 1876 #ifdef SIGUME | |
| 1877 handle_signal (SIGUME); | |
| 1878 #endif | |
| 1879 #ifdef SIGDLK | |
| 1880 handle_signal (SIGDLK); | |
| 1881 #endif | |
| 1882 #ifdef SIGCPULIM | |
| 1883 handle_signal (SIGCPULIM); | |
| 1884 #endif | |
| 1885 #ifdef SIGIOT | |
| 1886 handle_signal (SIGIOT); | |
| 1887 #endif | |
| 1888 #ifdef SIGLOST | |
| 1889 handle_signal (SIGLOST); | |
| 1890 #endif | |
| 1891 #ifdef SIGSTKFLT | |
| 1892 handle_signal (SIGSTKFLT); | |
| 1893 #endif | |
| 1894 #ifdef SIGUNUSED | |
| 1895 handle_signal (SIGUNUSED); | |
| 1896 #endif | |
| 1897 #ifdef SIGDANGER | |
| 1898 handle_signal (SIGDANGER); /* AIX */ | |
| 1899 #endif | |
| 1900 #ifdef SIGMSG | |
| 1901 handle_signal (SIGMSG); | |
| 1902 #endif | |
| 1903 #ifdef SIGSOUND | |
| 1904 handle_signal (SIGSOUND); | |
| 1905 #endif | |
| 1906 #ifdef SIGRETRACT | |
| 1907 handle_signal (SIGRETRACT); | |
| 1908 #endif | |
| 1909 #ifdef SIGGRANT | |
| 1910 handle_signal (SIGGRANT); | |
| 1911 #endif | |
| 1912 #ifdef SIGPWR | |
| 1913 handle_signal (SIGPWR); | |
| 1914 #endif | |
| 1915 | |
| 1916 #undef handle_signal | |
| 1917 | |
| 563 | 1918 invalid_constant ("Undefined signal name", signal_); |
| 1204 | 1919 RETURN_NOT_REACHED (0); |
| 442 | 1920 } |
| 1921 } | |
| 1922 | |
| 1923 /* Send signal number SIGNO to PROCESS. | |
| 1924 CURRENT-GROUP non-nil means send signal to the current | |
| 1925 foreground process group of the process's controlling terminal rather | |
| 1926 than to the process's own process group. | |
| 1927 This is used for various commands in shell mode. | |
| 1928 If NOMSG is zero, insert signal-announcements into process's buffers | |
| 1929 right away. | |
| 1930 | |
| 1931 If we can, we try to signal PROCESS by sending control characters | |
| 1932 down the pty. This allows us to signal inferiors who have changed | |
| 1933 their uid, for which kill() would return an EPERM error, or to | |
| 1934 processes running on another computer through a remote login. */ | |
| 1935 | |
| 1936 static void | |
| 1937 process_send_signal (Lisp_Object process, int signo, | |
| 1938 int current_group, int nomsg) | |
| 1939 { | |
| 1940 /* This function can GC */ | |
| 444 | 1941 process = get_process (process); |
| 442 | 1942 |
| 444 | 1943 if (network_connection_p (process)) |
| 563 | 1944 invalid_operation ("Network connection is not a subprocess", process); |
| 444 | 1945 CHECK_LIVE_PROCESS (process); |
| 442 | 1946 |
| 444 | 1947 MAYBE_PROCMETH (kill_child_process, (process, signo, current_group, nomsg)); |
| 442 | 1948 } |
| 1949 | |
| 1950 DEFUN ("process-send-signal", Fprocess_send_signal, 1, 3, 0, /* | |
| 1951 Send signal SIGNAL to process PROCESS. | |
| 1952 SIGNAL may be an integer, or a symbol naming a signal, like `SIGSEGV'. | |
| 1953 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 1954 nil, indicating the current buffer's process. | |
| 1955 Third arg CURRENT-GROUP non-nil means send signal to the current | |
| 1956 foreground process group of the process's controlling terminal rather | |
| 1957 than to the process's own process group. | |
| 1958 If the process is a shell that supports job control, this means | |
| 1959 send the signal to the current subjob rather than the shell. | |
| 1960 */ | |
| 1961 (signal_, process, current_group)) | |
| 1962 { | |
| 1963 /* This function can GC */ | |
| 1964 process_send_signal (process, decode_signal (signal_), | |
| 1965 !NILP (current_group), 0); | |
| 1966 return process; | |
| 1967 } | |
| 1968 | |
| 1969 DEFUN ("interrupt-process", Finterrupt_process, 0, 2, 0, /* | |
| 1970 Interrupt process PROCESS. | |
| 1971 See function `process-send-signal' for more details on usage. | |
| 1972 */ | |
| 1973 (process, current_group)) | |
| 1974 { | |
| 1975 /* This function can GC */ | |
| 1976 process_send_signal (process, SIGINT, !NILP (current_group), 0); | |
| 1977 return process; | |
| 1978 } | |
| 1979 | |
| 1980 DEFUN ("kill-process", Fkill_process, 0, 2, 0, /* | |
| 1981 Kill process PROCESS. | |
| 1982 See function `process-send-signal' for more details on usage. | |
| 1983 */ | |
| 1984 (process, current_group)) | |
| 1985 { | |
| 1986 /* This function can GC */ | |
| 1987 #ifdef SIGKILL | |
| 1988 process_send_signal (process, SIGKILL, !NILP (current_group), 0); | |
| 1989 #else | |
| 563 | 1990 signal_error (Qunimplemented, |
| 1991 "kill-process: Not supported on this system", | |
| 1992 Qunbound); | |
| 442 | 1993 #endif |
| 1994 return process; | |
| 1995 } | |
| 1996 | |
| 1997 DEFUN ("quit-process", Fquit_process, 0, 2, 0, /* | |
| 1998 Send QUIT signal to process PROCESS. | |
| 1999 See function `process-send-signal' for more details on usage. | |
| 2000 */ | |
| 2001 (process, current_group)) | |
| 2002 { | |
| 2003 /* This function can GC */ | |
| 2004 #ifdef SIGQUIT | |
| 2005 process_send_signal (process, SIGQUIT, !NILP (current_group), 0); | |
| 2006 #else | |
| 563 | 2007 signal_error (Qunimplemented, |
| 2008 "quit-process: Not supported on this system", | |
| 2009 Qunbound); | |
| 442 | 2010 #endif |
| 2011 return process; | |
| 2012 } | |
| 2013 | |
| 2014 DEFUN ("stop-process", Fstop_process, 0, 2, 0, /* | |
| 2015 Stop process PROCESS. | |
| 2016 See function `process-send-signal' for more details on usage. | |
| 2017 */ | |
| 2018 (process, current_group)) | |
| 2019 { | |
| 2020 /* This function can GC */ | |
| 2021 #ifdef SIGTSTP | |
| 2022 process_send_signal (process, SIGTSTP, !NILP (current_group), 0); | |
| 2023 #else | |
| 563 | 2024 signal_error (Qunimplemented, |
| 2025 "stop-process: Not supported on this system", | |
| 2026 Qunbound); | |
| 442 | 2027 #endif |
| 2028 return process; | |
| 2029 } | |
| 2030 | |
| 2031 DEFUN ("continue-process", Fcontinue_process, 0, 2, 0, /* | |
| 2032 Continue process PROCESS. | |
| 2033 See function `process-send-signal' for more details on usage. | |
| 2034 */ | |
| 2035 (process, current_group)) | |
| 2036 { | |
| 2037 /* This function can GC */ | |
| 2038 #ifdef SIGCONT | |
| 2039 process_send_signal (process, SIGCONT, !NILP (current_group), 0); | |
| 2040 #else | |
| 563 | 2041 signal_error (Qunimplemented, |
| 2042 "continue-process: Not supported on this system", | |
| 2043 Qunbound); | |
| 442 | 2044 #endif |
| 2045 return process; | |
| 2046 } | |
| 2047 | |
| 2048 DEFUN ("signal-process", Fsignal_process, 2, 2, | |
| 2049 "nProcess number: \nnSignal code: ", /* | |
| 2050 Send the process with process id PID the signal with code SIGNAL. | |
| 2051 PID must be an integer. The process need not be a child of this Emacs. | |
| 2052 SIGNAL may be an integer, or a symbol naming a signal, like `SIGSEGV'. | |
| 2053 */ | |
| 2054 (pid, signal_)) | |
| 2055 { | |
| 2056 CHECK_INT (pid); | |
| 2057 | |
| 428 | 2058 return make_int (PROCMETH_OR_GIVEN (kill_process_by_pid, |
| 442 | 2059 (XINT (pid), decode_signal (signal_)), |
| 2060 -1)); | |
| 428 | 2061 } |
| 2062 | |
| 2063 DEFUN ("process-send-eof", Fprocess_send_eof, 0, 1, 0, /* | |
| 2064 Make PROCESS see end-of-file in its input. | |
| 2065 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 2066 nil, indicating the current buffer's process. | |
| 2067 If PROCESS is a network connection, or is a process communicating | |
| 2068 through a pipe (as opposed to a pty), then you cannot send any more | |
| 2069 text to PROCESS after you call this function. | |
| 2070 */ | |
| 2071 (process)) | |
| 2072 { | |
| 2073 /* This function can GC */ | |
| 444 | 2074 process = get_process (process); |
| 428 | 2075 |
| 2076 /* Make sure the process is really alive. */ | |
| 444 | 2077 if (! EQ (XPROCESS (process)->status_symbol, Qrun)) |
| 563 | 2078 invalid_operation ("Process not running", process); |
| 428 | 2079 |
| 444 | 2080 if (!MAYBE_INT_PROCMETH (process_send_eof, (process))) |
| 428 | 2081 { |
| 444 | 2082 if (!NILP (DATA_OUTSTREAM (XPROCESS (process)))) |
| 428 | 2083 { |
| 853 | 2084 USID humpty, dumpty; |
| 444 | 2085 Lstream_close (XLSTREAM (DATA_OUTSTREAM (XPROCESS (process)))); |
| 853 | 2086 event_stream_delete_io_streams (Qnil, |
| 2087 XPROCESS (process)->pipe_outstream, | |
| 2088 Qnil, &humpty, &dumpty); | |
| 444 | 2089 XPROCESS (process)->pipe_outstream = Qnil; |
| 2090 XPROCESS (process)->coding_outstream = Qnil; | |
| 428 | 2091 } |
| 2092 } | |
| 2093 | |
| 2094 return process; | |
| 2095 } | |
| 2096 | |
| 2097 | |
| 2098 /************************************************************************/ | |
| 2099 /* deleting a process */ | |
| 2100 /************************************************************************/ | |
| 2101 | |
| 2102 void | |
| 444 | 2103 deactivate_process (Lisp_Object process) |
| 428 | 2104 { |
| 444 | 2105 Lisp_Process *p = XPROCESS (process); |
| 853 | 2106 USID in_usid, err_usid; |
| 428 | 2107 |
| 2108 /* It's possible that we got as far in the process-creation | |
| 2109 process as creating the descriptors but didn't get so | |
| 2110 far as selecting the process for input. In this | |
| 2111 case, p->pid is nil: p->pid is set at the same time that | |
| 2112 the process is selected for input. */ | |
| 2113 /* #### The comment does not look correct. event_stream_unselect_process | |
| 853 | 2114 is guarded by process->*_selected, so this is not a problem. - kkm*/ |
| 428 | 2115 /* Must call this before setting the streams to nil */ |
| 853 | 2116 event_stream_unselect_process (p, 1, 1); |
| 428 | 2117 |
| 2118 if (!NILP (DATA_OUTSTREAM (p))) | |
| 2119 Lstream_close (XLSTREAM (DATA_OUTSTREAM (p))); | |
| 2120 if (!NILP (DATA_INSTREAM (p))) | |
| 2121 Lstream_close (XLSTREAM (DATA_INSTREAM (p))); | |
| 853 | 2122 if (!NILP (DATA_ERRSTREAM (p))) |
| 2123 Lstream_close (XLSTREAM (DATA_ERRSTREAM (p))); | |
| 428 | 2124 |
| 2125 /* Provide minimal implementation for deactivate_process | |
| 2126 if there's no process-specific one */ | |
| 2127 if (HAS_PROCMETH_P (deactivate_process)) | |
| 853 | 2128 PROCMETH (deactivate_process, (p, &in_usid, &err_usid)); |
| 428 | 2129 else |
| 853 | 2130 event_stream_delete_io_streams (p->pipe_instream, |
| 2131 p->pipe_outstream, | |
| 2132 p->pipe_errstream, | |
| 2133 &in_usid, &err_usid); | |
| 428 | 2134 |
| 853 | 2135 if (in_usid != USID_DONTHASH) |
| 2367 | 2136 remhash ((const void *) in_usid, usid_to_process); |
| 853 | 2137 if (err_usid != USID_DONTHASH) |
| 2367 | 2138 remhash ((const void *) err_usid, usid_to_process); |
| 428 | 2139 |
| 2140 p->pipe_instream = Qnil; | |
| 2141 p->pipe_outstream = Qnil; | |
| 853 | 2142 p->pipe_errstream = Qnil; |
| 428 | 2143 p->coding_instream = Qnil; |
| 2144 p->coding_outstream = Qnil; | |
| 853 | 2145 p->coding_errstream = Qnil; |
| 428 | 2146 } |
| 2147 | |
| 2148 static void | |
| 444 | 2149 remove_process (Lisp_Object process) |
| 428 | 2150 { |
| 444 | 2151 Vprocess_list = delq_no_quit (process, Vprocess_list); |
| 428 | 2152 |
| 444 | 2153 deactivate_process (process); |
| 428 | 2154 } |
| 2155 | |
| 2156 DEFUN ("delete-process", Fdelete_process, 1, 1, 0, /* | |
| 2157 Delete PROCESS: kill it and forget about it immediately. | |
| 2158 PROCESS may be a process or the name of one, or a buffer name. | |
| 2159 */ | |
| 444 | 2160 (process)) |
| 428 | 2161 { |
| 2162 /* This function can GC */ | |
| 440 | 2163 Lisp_Process *p; |
| 444 | 2164 process = get_process (process); |
| 2165 p = XPROCESS (process); | |
| 2166 if (network_connection_p (process)) | |
| 428 | 2167 { |
| 2168 p->status_symbol = Qexit; | |
| 2169 p->exit_code = 0; | |
| 2170 p->core_dumped = 0; | |
| 2171 p->tick++; | |
| 2172 process_tick++; | |
| 2173 } | |
| 440 | 2174 else if (PROCESS_LIVE_P (p)) |
| 428 | 2175 { |
| 444 | 2176 Fkill_process (process, Qnil); |
| 428 | 2177 /* Do this now, since remove_process will make sigchld_handler do nothing. */ |
| 2178 p->status_symbol = Qsignal; | |
| 2179 p->exit_code = SIGKILL; | |
| 2180 p->core_dumped = 0; | |
| 2181 p->tick++; | |
| 2182 process_tick++; | |
| 2183 status_notify (); | |
| 2184 } | |
| 444 | 2185 remove_process (process); |
| 428 | 2186 return Qnil; |
| 2187 } | |
| 2188 | |
| 2189 /* Kill all processes associated with `buffer'. | |
| 2190 If `buffer' is nil, kill all processes */ | |
| 2191 | |
| 2192 void | |
| 2193 kill_buffer_processes (Lisp_Object buffer) | |
| 2194 { | |
| 444 | 2195 LIST_LOOP_2 (process, Vprocess_list) |
| 2196 if ((NILP (buffer) || EQ (XPROCESS (process)->buffer, buffer))) | |
| 2197 { | |
| 2198 if (network_connection_p (process)) | |
| 2199 Fdelete_process (process); | |
| 2200 else if (PROCESS_LIVE_P (XPROCESS (process))) | |
| 2201 process_send_signal (process, SIGHUP, 0, 1); | |
| 2202 } | |
| 428 | 2203 } |
| 2204 | |
| 2205 DEFUN ("process-kill-without-query", Fprocess_kill_without_query, 1, 2, 0, /* | |
| 2206 Say no query needed if PROCESS is running when Emacs is exited. | |
| 2207 Optional second argument if non-nil says to require a query. | |
| 2208 Value is t if a query was formerly required. | |
| 2209 */ | |
| 444 | 2210 (process, require_query_p)) |
| 428 | 2211 { |
| 2212 int tem; | |
| 2213 | |
| 444 | 2214 CHECK_PROCESS (process); |
| 2215 tem = XPROCESS (process)->kill_without_query; | |
| 2216 XPROCESS (process)->kill_without_query = NILP (require_query_p); | |
| 428 | 2217 |
| 2218 return tem ? Qnil : Qt; | |
| 2219 } | |
| 2220 | |
| 2221 DEFUN ("process-kill-without-query-p", Fprocess_kill_without_query_p, 1, 1, 0, /* | |
| 444 | 2222 Return t if PROCESS will be killed without query when emacs is exited. |
| 428 | 2223 */ |
| 444 | 2224 (process)) |
| 428 | 2225 { |
| 444 | 2226 CHECK_PROCESS (process); |
| 2227 return XPROCESS (process)->kill_without_query ? Qt : Qnil; | |
| 428 | 2228 } |
| 2229 | |
| 2230 | |
| 2231 #if 0 | |
| 2232 | |
| 826 | 2233 DEFUN ("process-connection", Fprocess_connection, 0, 1, 0, /* |
| 428 | 2234 Return the connection type of `PROCESS'. This can be nil (pipe), |
| 2235 t or pty (pty) or stream (socket connection). | |
| 2236 */ | |
| 2237 (process)) | |
| 2238 { | |
| 2239 return XPROCESS (process)->type; | |
| 2240 } | |
| 2241 | |
| 2242 #endif /* 0 */ | |
| 2243 | |
| 814 | 2244 |
| 2245 static int | |
| 867 | 2246 getenv_internal (const Ibyte *var, |
| 814 | 2247 Bytecount varlen, |
| 867 | 2248 Ibyte **value, |
| 814 | 2249 Bytecount *valuelen) |
| 2250 { | |
| 2251 Lisp_Object scan; | |
| 2252 | |
| 2253 assert (env_initted); | |
| 2254 | |
| 2255 for (scan = Vprocess_environment; CONSP (scan); scan = XCDR (scan)) | |
| 2256 { | |
| 2257 Lisp_Object entry = XCAR (scan); | |
| 2258 | |
| 2259 if (STRINGP (entry) | |
| 2260 && XSTRING_LENGTH (entry) > varlen | |
| 826 | 2261 && string_byte (entry, varlen) == '=' |
| 814 | 2262 #ifdef WIN32_NATIVE |
| 2263 /* NT environment variables are case insensitive. */ | |
| 2264 && ! memicmp (XSTRING_DATA (entry), var, varlen) | |
| 2265 #else /* not WIN32_NATIVE */ | |
| 2266 && ! memcmp (XSTRING_DATA (entry), var, varlen) | |
| 2267 #endif /* not WIN32_NATIVE */ | |
| 2268 ) | |
| 2269 { | |
| 2270 *value = XSTRING_DATA (entry) + (varlen + 1); | |
| 2271 *valuelen = XSTRING_LENGTH (entry) - (varlen + 1); | |
| 2272 return 1; | |
| 2273 } | |
| 2274 } | |
| 2275 | |
| 2276 return 0; | |
| 2277 } | |
| 2278 | |
| 2279 static void | |
| 867 | 2280 putenv_internal (const Ibyte *var, |
| 814 | 2281 Bytecount varlen, |
| 867 | 2282 const Ibyte *value, |
| 814 | 2283 Bytecount valuelen) |
| 2284 { | |
| 2285 Lisp_Object scan; | |
| 2286 | |
| 2287 assert (env_initted); | |
| 2288 | |
| 2289 for (scan = Vprocess_environment; CONSP (scan); scan = XCDR (scan)) | |
| 2290 { | |
| 2291 Lisp_Object entry = XCAR (scan); | |
| 2292 | |
| 2293 if (STRINGP (entry) | |
| 2294 && XSTRING_LENGTH (entry) > varlen | |
| 826 | 2295 && string_byte (entry, varlen) == '=' |
| 814 | 2296 #ifdef WIN32_NATIVE |
| 2297 /* NT environment variables are case insensitive. */ | |
| 2298 && ! memicmp (XSTRING_DATA (entry), var, varlen) | |
| 2299 #else /* not WIN32_NATIVE */ | |
| 2300 && ! memcmp (XSTRING_DATA (entry), var, varlen) | |
| 2301 #endif /* not WIN32_NATIVE */ | |
| 2302 ) | |
| 2303 { | |
| 2304 XCAR (scan) = concat3 (make_string (var, varlen), | |
|
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|
2305 build_ascstring ("="), |
| 814 | 2306 make_string (value, valuelen)); |
| 2307 return; | |
| 2308 } | |
| 2309 } | |
| 2310 | |
| 2311 Vprocess_environment = Fcons (concat3 (make_string (var, varlen), | |
|
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diff
changeset
|
2312 build_ascstring ("="), |
| 814 | 2313 make_string (value, valuelen)), |
| 2314 Vprocess_environment); | |
| 2315 } | |
| 2316 | |
| 2317 /* NOTE: | |
| 2318 | |
| 2319 FSF has this as a Lisp function, as follows. Generally moving things | |
| 2320 out of C and into Lisp is a good idea, but in this case the Lisp | |
| 2321 function is used so early in the startup sequence that it would be ugly | |
| 2322 to rearrange the early dumped code to accommodate this. | |
| 854 | 2323 |
| 814 | 2324 (defun getenv (variable) |
| 2325 "Get the value of environment variable VARIABLE. | |
| 2326 VARIABLE should be a string. Value is nil if VARIABLE is undefined in | |
| 2327 the environment. Otherwise, value is a string. | |
| 2328 | |
| 2329 This function consults the variable `process-environment' | |
| 2330 for its value." | |
| 2331 (interactive (list (read-envvar-name "Get environment variable: " t))) | |
| 2332 (let ((value (getenv-internal variable))) | |
| 2333 (when (interactive-p) | |
| 2334 (message "%s" (if value value "Not set"))) | |
| 2335 value)) | |
| 2336 */ | |
| 2337 | |
| 2338 DEFUN ("getenv", Fgetenv, 1, 2, "sEnvironment variable: \np", /* | |
| 2339 Return the value of environment variable VAR, as a string. | |
| 2340 VAR is a string, the name of the variable. | |
| 2341 When invoked interactively, prints the value in the echo area. | |
| 2342 */ | |
| 2343 (var, interactivep)) | |
| 2344 { | |
| 4932 | 2345 Ibyte *value = NULL; |
| 814 | 2346 Bytecount valuelen; |
| 2347 Lisp_Object v = Qnil; | |
| 2348 struct gcpro gcpro1; | |
| 2349 | |
| 2350 CHECK_STRING (var); | |
| 2351 GCPRO1 (v); | |
| 2352 if (getenv_internal (XSTRING_DATA (var), XSTRING_LENGTH (var), | |
| 2353 &value, &valuelen)) | |
| 2354 v = make_string (value, valuelen); | |
| 2355 if (!NILP (interactivep)) | |
| 2356 { | |
| 2357 if (NILP (v)) | |
| 2358 message ("%s not defined in environment", XSTRING_DATA (var)); | |
| 2359 else | |
| 2360 /* #### Should use Fprin1_to_string or Fprin1 to handle string | |
| 2361 containing quotes correctly. */ | |
| 2362 message ("\"%s\"", value); | |
| 2363 } | |
| 2364 RETURN_UNGCPRO (v); | |
| 2365 } | |
| 2366 | |
| 2367 /* A version of getenv that consults Vprocess_environment, easily | |
| 2368 callable from C. | |
| 2369 | |
| 2370 (At init time, Vprocess_environment is initialized from the | |
| 2371 environment, stored in the global variable environ. [Note that | |
| 2372 at startup time, `environ' should be the same as the envp parameter | |
| 2373 passed to main(); however, later calls to putenv() may change | |
| 2374 `environ', making the envp parameter inaccurate.] Calls to getenv() | |
| 2375 and putenv() consult and modify `environ'. However, once | |
| 2376 Vprocess_environment is initted, XEmacs C code should *NEVER* call | |
| 2377 getenv() or putenv() directly, because (1) Lisp code that modifies | |
| 2378 the environment only modifies Vprocess_environment, not `environ'; | |
| 2379 and (2) Vprocess_environment is in internal format but `environ' | |
| 2380 is in some external format, and getenv()/putenv() are not Mule- | |
| 2381 encapsulated. | |
| 2382 | |
| 2383 WARNING: This value points into Lisp string data and thus will become | |
| 2384 invalid after a GC. */ | |
| 2385 | |
| 867 | 2386 Ibyte * |
| 2387 egetenv (const CIbyte *var) | |
| 814 | 2388 { |
| 2389 /* This cannot GC -- 7-28-00 ben */ | |
| 867 | 2390 Ibyte *value; |
| 814 | 2391 Bytecount valuelen; |
| 2392 | |
| 867 | 2393 if (getenv_internal ((const Ibyte *) var, strlen (var), &value, &valuelen)) |
| 814 | 2394 return value; |
| 2395 else | |
| 2396 return 0; | |
| 2397 } | |
| 2398 | |
| 2399 void | |
| 867 | 2400 eputenv (const CIbyte *var, const CIbyte *value) |
| 814 | 2401 { |
| 867 | 2402 putenv_internal ((Ibyte *) var, strlen (var), (Ibyte *) value, |
| 814 | 2403 strlen (value)); |
| 2404 } | |
| 2405 | |
| 2406 | |
| 2407 /* This is not named init_process in order to avoid a conflict with NS 3.3 */ | |
| 2408 void | |
| 2409 init_xemacs_process (void) | |
| 2410 { | |
| 2411 /* This function can GC */ | |
| 2412 | |
| 2413 MAYBE_PROCMETH (init_process, ()); | |
| 2414 | |
| 2415 Vprocess_list = Qnil; | |
| 2416 | |
| 2417 if (usid_to_process) | |
| 2418 clrhash (usid_to_process); | |
| 2419 else | |
| 2420 usid_to_process = make_hash_table (32); | |
| 854 | 2421 |
| 814 | 2422 { |
| 2423 /* jwz: always initialize Vprocess_environment, so that egetenv() | |
| 2424 works in temacs. */ | |
| 2367 | 2425 Extbyte **envp; |
| 814 | 2426 Vprocess_environment = Qnil; |
| 2367 | 2427 #ifdef WIN32_NATIVE |
| 2428 _wgetenv (L""); /* force initialization of _wenviron */ | |
| 2429 for (envp = (Extbyte **) _wenviron; envp && *envp; envp++) | |
| 2430 Vprocess_environment = | |
|
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2431 Fcons (build_extstring (*envp, Qmswindows_unicode), |
| 2367 | 2432 Vprocess_environment); |
| 2433 #else | |
| 814 | 2434 for (envp = environ; envp && *envp; envp++) |
| 2435 Vprocess_environment = | |
|
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|
2436 Fcons (build_extstring (*envp, Qenvironment_variable_encoding), |
|
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|
2437 Vprocess_environment); |
| 2367 | 2438 #endif |
| 814 | 2439 /* This gets set back to 0 in disksave_object_finalization() */ |
| 2440 env_initted = 1; | |
| 2441 } | |
| 2442 | |
| 2443 { | |
| 2444 /* Initialize shell-file-name from environment variables or best guess. */ | |
| 2445 #ifdef WIN32_NATIVE | |
| 867 | 2446 const Ibyte *shell = egetenv ("SHELL"); |
| 814 | 2447 if (!shell) shell = egetenv ("COMSPEC"); |
| 2448 /* Should never happen! */ | |
| 2449 if (!shell) shell = | |
| 867 | 2450 (Ibyte *) (GetVersion () & 0x80000000 ? "command" : "cmd"); |
| 814 | 2451 #else /* not WIN32_NATIVE */ |
| 867 | 2452 const Ibyte *shell = egetenv ("SHELL"); |
| 2453 if (!shell) shell = (Ibyte *) "/bin/sh"; | |
| 814 | 2454 #endif |
| 2455 | |
| 2456 #if 0 /* defined (WIN32_NATIVE) */ | |
| 2457 /* BAD BAD BAD. We do not wanting to be passing an XEmacs-created | |
| 2458 SHELL var down to some inferior Cygwin process, which might get | |
| 2459 screwed up. | |
| 854 | 2460 |
| 814 | 2461 There are a few broken apps (eterm/term.el, eterm/tshell.el, |
| 2462 os-utils/terminal.el, texinfo/tex-mode.el) where this will | |
| 2463 cause problems. Those broken apps don't look at | |
| 2464 shell-file-name, instead just at explicit-shell-file-name, | |
| 2465 ESHELL and SHELL. They are apparently attempting to borrow | |
| 2466 what `M-x shell' uses, but that latter also looks at | |
| 2467 shell-file-name. What we want is for all of these apps to look | |
| 2468 at shell-file-name, so that the user can change the value of | |
| 2469 shell-file-name and everything will work out hunky-dorey. | |
| 2470 */ | |
| 854 | 2471 |
| 814 | 2472 if (!egetenv ("SHELL")) |
| 2473 { | |
| 2367 | 2474 Ibyte *faux_var = alloca_ibytes (7 + qxestrlen (shell)); |
| 814 | 2475 qxesprintf (faux_var, "SHELL=%s", shell); |
|
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2476 Vprocess_environment = Fcons (build_istring (faux_var), |
| 814 | 2477 Vprocess_environment); |
| 2478 } | |
| 2479 #endif /* 0 */ | |
| 2480 | |
|
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|
2481 Vshell_file_name = build_istring (shell); |
| 814 | 2482 } |
| 2483 } | |
| 2484 | |
| 428 | 2485 void |
| 2486 syms_of_process (void) | |
| 2487 { | |
|
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|
2488 INIT_LISP_OBJECT (process); |
| 442 | 2489 |
| 563 | 2490 DEFSYMBOL (Qprocessp); |
| 2491 DEFSYMBOL (Qprocess_live_p); | |
| 2492 DEFSYMBOL (Qrun); | |
| 2493 DEFSYMBOL (Qstop); | |
| 2494 DEFSYMBOL (Qopen); | |
| 2495 DEFSYMBOL (Qclosed); | |
| 863 | 2496 #if 0 |
| 2497 /* see comment at Fprocess_readable_p */ | |
| 2498 DEFSYMBOL (&Qprocess_readable_p); | |
| 2499 #endif | |
| 563 | 2500 DEFSYMBOL (Qtcp); |
| 2501 DEFSYMBOL (Qudp); | |
| 428 | 2502 |
| 2503 #ifdef HAVE_MULTICAST | |
| 563 | 2504 DEFSYMBOL (Qmulticast); /* Used for occasional warnings */ |
| 428 | 2505 #endif |
| 2506 | |
| 563 | 2507 DEFERROR_STANDARD (Qprocess_error, Qio_error); |
| 2508 DEFERROR_STANDARD (Qnetwork_error, Qio_error); | |
| 2509 | |
| 428 | 2510 DEFSUBR (Fprocessp); |
| 440 | 2511 DEFSUBR (Fprocess_live_p); |
| 863 | 2512 #if 0 |
| 2513 /* see comment at Fprocess_readable_p */ | |
| 2514 DEFSUBR (Fprocess_readable_p); | |
| 2515 #endif | |
| 428 | 2516 DEFSUBR (Fget_process); |
| 2517 DEFSUBR (Fget_buffer_process); | |
| 2518 DEFSUBR (Fdelete_process); | |
| 2519 DEFSUBR (Fprocess_status); | |
| 2520 DEFSUBR (Fprocess_exit_status); | |
| 2521 DEFSUBR (Fprocess_id); | |
| 2522 DEFSUBR (Fprocess_name); | |
| 2523 DEFSUBR (Fprocess_tty_name); | |
| 2524 DEFSUBR (Fprocess_command); | |
| 859 | 2525 DEFSUBR (Fprocess_has_separate_stderr_p); |
| 428 | 2526 DEFSUBR (Fset_process_buffer); |
| 853 | 2527 DEFSUBR (Fset_process_stderr_buffer); |
| 428 | 2528 DEFSUBR (Fprocess_buffer); |
| 2529 DEFSUBR (Fprocess_mark); | |
| 853 | 2530 DEFSUBR (Fprocess_stderr_buffer); |
| 2531 DEFSUBR (Fprocess_stderr_mark); | |
| 428 | 2532 DEFSUBR (Fset_process_filter); |
| 2533 DEFSUBR (Fprocess_filter); | |
| 853 | 2534 DEFSUBR (Fset_process_stderr_filter); |
| 2535 DEFSUBR (Fprocess_stderr_filter); | |
| 428 | 2536 DEFSUBR (Fset_process_window_size); |
| 2537 DEFSUBR (Fset_process_sentinel); | |
| 2538 DEFSUBR (Fprocess_sentinel); | |
| 2539 DEFSUBR (Fprocess_kill_without_query); | |
| 2540 DEFSUBR (Fprocess_kill_without_query_p); | |
| 2541 DEFSUBR (Fprocess_list); | |
| 2542 DEFSUBR (Fstart_process_internal); | |
| 2543 #ifdef HAVE_SOCKETS | |
| 2544 DEFSUBR (Fopen_network_stream_internal); | |
| 2545 #ifdef HAVE_MULTICAST | |
| 2546 DEFSUBR (Fopen_multicast_group_internal); | |
| 2547 #endif /* HAVE_MULTICAST */ | |
| 2548 #endif /* HAVE_SOCKETS */ | |
| 2549 DEFSUBR (Fprocess_send_region); | |
| 2550 DEFSUBR (Fprocess_send_string); | |
| 442 | 2551 DEFSUBR (Fprocess_send_signal); |
| 428 | 2552 DEFSUBR (Finterrupt_process); |
| 2553 DEFSUBR (Fkill_process); | |
| 2554 DEFSUBR (Fquit_process); | |
| 2555 DEFSUBR (Fstop_process); | |
| 2556 DEFSUBR (Fcontinue_process); | |
| 2557 DEFSUBR (Fprocess_send_eof); | |
| 2558 DEFSUBR (Fsignal_process); | |
| 2559 /* DEFSUBR (Fprocess_connection); */ | |
| 2560 DEFSUBR (Fprocess_input_coding_system); | |
| 2561 DEFSUBR (Fprocess_output_coding_system); | |
| 2562 DEFSUBR (Fset_process_input_coding_system); | |
| 2563 DEFSUBR (Fset_process_output_coding_system); | |
| 2564 DEFSUBR (Fprocess_coding_system); | |
| 2565 DEFSUBR (Fset_process_coding_system); | |
| 814 | 2566 DEFSUBR (Fgetenv); |
| 428 | 2567 } |
| 2568 | |
| 2569 void | |
| 2570 vars_of_process (void) | |
| 2571 { | |
| 2572 Fprovide (intern ("subprocesses")); | |
| 2573 #ifdef HAVE_SOCKETS | |
| 2574 Fprovide (intern ("network-streams")); | |
| 2575 #ifdef HAVE_MULTICAST | |
| 2576 Fprovide (intern ("multicast")); | |
| 2577 #endif /* HAVE_MULTICAST */ | |
| 2578 #endif /* HAVE_SOCKETS */ | |
| 2579 staticpro (&Vprocess_list); | |
| 2580 | |
| 2581 DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes /* | |
| 2582 *Non-nil means delete processes immediately when they exit. | |
| 2583 nil means don't delete them until `list-processes' is run. | |
| 2584 */ ); | |
| 2585 | |
| 2586 delete_exited_processes = 1; | |
| 2587 | |
| 442 | 2588 DEFVAR_CONST_LISP ("null-device", &Vnull_device /* |
| 2589 Name of the null device, which differs from system to system. | |
| 2590 The null device is a filename that acts as a sink for arbitrary amounts of | |
| 2591 data, which is discarded, or as a source for a zero-length file. | |
| 2592 It is available on all the systems that we currently support, but with | |
| 2593 different names (typically either `/dev/null' or `nul'). | |
| 2594 | |
| 2595 Note that there is also a /dev/zero on most modern Unix versions (including | |
| 2596 Cygwin), which acts like /dev/null when used as a sink, but as a source | |
| 2597 it sends a non-ending stream of zero bytes. It's used most often along | |
| 2598 with memory-mapping. We don't provide a Lisp variable for this because | |
| 2599 the operations needing this are lower level than what ELisp programs | |
| 2600 typically do, and in any case no equivalent exists under native MS Windows. | |
| 2601 */ ); | |
|
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2602 Vnull_device = build_ascstring (NULL_DEVICE); |
| 442 | 2603 |
| 428 | 2604 DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type /* |
| 2605 Control type of device used to communicate with subprocesses. | |
| 2606 Values are nil to use a pipe, or t or `pty' to use a pty. | |
| 2607 The value has no effect if the system has no ptys or if all ptys are busy: | |
| 2608 then a pipe is used in any case. | |
| 2609 The value takes effect when `start-process' is called. | |
| 2610 */ ); | |
| 2611 Vprocess_connection_type = Qt; | |
| 2612 | |
| 2613 DEFVAR_BOOL ("windowed-process-io", &windowed_process_io /* | |
| 2614 Enables input/output on standard handles of a windowed process. | |
| 2615 When this variable is nil (the default), XEmacs does not attempt to read | |
| 2616 standard output handle of a windowed process. Instead, the process is | |
| 2617 immediately marked as exited immediately upon successful launching. This is | |
| 2618 done because normal windowed processes do not use standard I/O, as they are | |
| 2619 not connected to any console. | |
| 2620 | |
| 2621 When launching a specially crafted windowed process, which expects to be | |
| 2622 launched by XEmacs, or by other program which pipes its standard input and | |
| 2623 output, this variable must be set to non-nil, in which case XEmacs will | |
| 2624 treat this process just like a console process. | |
| 2625 | |
| 2626 NOTE: You should never set this variable, only bind it. | |
| 2627 | |
| 2628 Only Windows processes can be "windowed" or "console". This variable has no | |
| 2629 effect on UNIX processes, because all UNIX processes are "console". | |
| 2630 */ ); | |
| 2631 windowed_process_io = 0; | |
| 2632 | |
| 771 | 2633 DEFVAR_INT ("debug-process-io", &debug_process_io /* |
| 2634 If non-zero, display data sent to or received from a process. | |
| 2635 */ ); | |
| 2636 debug_process_io = 0; | |
| 2637 | |
| 2638 DEFVAR_LISP ("default-process-coding-system", | |
| 2639 &Vdefault_process_coding_system /* | |
| 2640 Cons of coding systems used for process I/O by default. | |
|
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2641 May also be nil, interpreted as (nil . nil). |
| 771 | 2642 The car part is used for reading (decoding) data from a process, and |
| 2643 the cdr part is used for writing (encoding) data to a process. | |
| 2644 */ ); | |
|
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2645 /* Better, system-dependent defaults are set in code-init.el. */ |
| 771 | 2646 Vdefault_process_coding_system = Fcons (Qundecided, Qnil); |
| 2647 | |
| 853 | 2648 DEFVAR_LISP ("default-network-coding-system", |
| 2649 &Vdefault_network_coding_system /* | |
| 2650 Cons of coding systems used for network I/O by default. | |
|
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2651 May also be nil, interpreted as (nil . nil). |
| 853 | 2652 The car part is used for reading (decoding) data from a process, and |
| 2653 the cdr part is used for writing (encoding) data to a process. | |
| 2654 */ ); | |
| 2655 Vdefault_network_coding_system = Fcons (Qundecided, Qnil); | |
| 2656 | |
| 428 | 2657 #ifdef PROCESS_IO_BLOCKING |
| 2658 DEFVAR_LISP ("network-stream-blocking-port-list", &network_stream_blocking_port_list /* | |
| 2659 List of port numbers or port names to set a blocking I/O mode with connection. | |
| 862 | 2660 Nil value means to set a default (non-blocking) I/O mode. |
| 428 | 2661 The value takes effect when `open-network-stream-internal' is called. |
| 2662 */ ); | |
| 2663 network_stream_blocking_port_list = Qnil; | |
| 2664 #endif /* PROCESS_IO_BLOCKING */ | |
| 814 | 2665 |
| 2666 /* This function can GC */ | |
| 2667 DEFVAR_LISP ("shell-file-name", &Vshell_file_name /* | |
| 2668 *File name to load inferior shells from. | |
| 2669 Initialized from the SHELL environment variable. | |
| 2670 */ ); | |
| 428 | 2671 |
|
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2672 /* ben? thinks the format of this variable is "semi-bogus". |
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diff
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|
2673 sjt doesn't agree, since it captures a restriction that is |
|
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diff
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|
2674 present in POSIX shells, after all. */ |
| 814 | 2675 DEFVAR_LISP ("process-environment", &Vprocess_environment /* |
| 2676 List of environment variables for subprocesses to inherit. | |
| 2677 Each element should be a string of the form ENVVARNAME=VALUE. | |
| 2678 The environment which Emacs inherits is placed in this variable | |
| 2679 when Emacs starts. | |
| 2680 */ ); | |
| 2681 | |
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2682 Vlisp_EXEC_SUFFIXES = build_ascstring (EXEC_SUFFIXES); |
| 814 | 2683 staticpro (&Vlisp_EXEC_SUFFIXES); |
| 2684 } |