Mercurial > hg > xemacs-beta
annotate src/process.c @ 5341:fde0802ee3e0
Zap freebsd.h.
2011-01-18 Mike Sperber <mike@xemacs.org>
* s/freebsd.h: Zap. Not really needed anymore, and it has unclear
license status.
2011-01-15 Mike Sperber <mike@xemacs.org>
* fakemail.c: #include <osreldate.h> on FreeBSD, since we no
longer have freebsd.h.
| author | Mike Sperber <sperber@deinprogramm.de> |
|---|---|
| date | Tue, 18 Jan 2011 10:01:29 +0100 |
| parents | c096d8051f89 |
| children | 8d29f1c4bb98 |
| 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 } | |
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173 /* Process plists are directly accessible, so we need to protect against |
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174 invalid property list structure */ |
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175 |
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176 static Lisp_Object |
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177 process_getprop (Lisp_Object process, Lisp_Object property) |
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178 { |
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179 return external_plist_get (&XPROCESS (process)->plist, property, 0, |
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180 ERROR_ME); |
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181 } |
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182 |
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183 static int |
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184 process_putprop (Lisp_Object process, Lisp_Object property, Lisp_Object value) |
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185 { |
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186 external_plist_put (&XPROCESS (process)->plist, property, value, 0, |
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187 ERROR_ME); |
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188 return 1; |
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189 } |
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190 |
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191 static int |
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192 process_remprop (Lisp_Object process, Lisp_Object property) |
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193 { |
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194 return external_remprop (&XPROCESS (process)->plist, property, 0, ERROR_ME); |
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195 } |
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196 |
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197 static Lisp_Object |
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198 process_plist (Lisp_Object process) |
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199 { |
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200 return XPROCESS (process)->plist; |
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201 } |
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202 |
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203 static Lisp_Object |
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204 process_setplist (Lisp_Object process, Lisp_Object newplist) |
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205 { |
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206 XPROCESS (process)->plist = newplist; |
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207 return newplist; |
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208 } |
| 428 | 209 |
| 210 #ifdef HAVE_WINDOW_SYSTEM | |
| 440 | 211 extern void debug_process_finalization (Lisp_Process *p); |
| 428 | 212 #endif /* HAVE_WINDOW_SYSTEM */ |
| 213 | |
| 214 static void | |
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215 finalize_process (Lisp_Object obj) |
| 428 | 216 { |
| 217 /* #### this probably needs to be tied into the tty event loop */ | |
| 218 /* #### when there is one */ | |
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219 Lisp_Process *p = XPROCESS (obj); |
| 428 | 220 #ifdef HAVE_WINDOW_SYSTEM |
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221 debug_process_finalization (p); |
| 428 | 222 #endif /* HAVE_WINDOW_SYSTEM */ |
| 223 | |
| 224 if (p->process_data) | |
| 225 { | |
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226 MAYBE_PROCMETH (finalize_process_data, (p)); |
| 5125 | 227 xfree (p->process_data); |
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228 p->process_data = 0; |
| 428 | 229 } |
| 230 } | |
| 231 | |
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232 DEFINE_NODUMP_LISP_OBJECT ("process", process, |
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233 mark_process, print_process, finalize_process, |
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234 0, 0, process_description, Lisp_Process); |
| 428 | 235 |
| 236 /************************************************************************/ | |
| 237 /* basic process accessors */ | |
| 238 /************************************************************************/ | |
| 239 | |
| 771 | 240 /* This function returns low-level streams, connected directly to the child |
| 241 process, rather than en/decoding streams */ | |
| 428 | 242 void |
| 853 | 243 get_process_streams (Lisp_Process *p, Lisp_Object *instr, Lisp_Object *outstr, |
| 244 Lisp_Object *errstr) | |
| 428 | 245 { |
| 246 assert (p); | |
| 853 | 247 assert (NILP (p->pipe_instream) || LSTREAMP (p->pipe_instream)); |
| 248 assert (NILP (p->pipe_outstream) || LSTREAMP (p->pipe_outstream)); | |
| 249 assert (NILP (p->pipe_errstream) || LSTREAMP (p->pipe_errstream)); | |
| 428 | 250 *instr = p->pipe_instream; |
| 251 *outstr = p->pipe_outstream; | |
| 853 | 252 *errstr = p->pipe_errstream; |
| 428 | 253 } |
| 254 | |
| 853 | 255 /* Given a USID referring to either a process's instream or errstream, |
| 256 return the associated process. */ | |
| 440 | 257 Lisp_Process * |
| 428 | 258 get_process_from_usid (USID usid) |
| 259 { | |
| 442 | 260 const void *vval; |
| 428 | 261 |
| 262 assert (usid != USID_ERROR && usid != USID_DONTHASH); | |
| 263 | |
| 442 | 264 if (gethash ((const void*)usid, usid_to_process, &vval)) |
| 428 | 265 { |
| 444 | 266 Lisp_Object process; |
| 5013 | 267 process = GET_LISP_FROM_VOID (vval); |
| 444 | 268 return XPROCESS (process); |
| 428 | 269 } |
| 270 else | |
| 271 return 0; | |
| 272 } | |
| 273 | |
| 274 int | |
| 853 | 275 get_process_selected_p (Lisp_Process *p, int do_err) |
| 428 | 276 { |
| 853 | 277 return do_err ? p->err_selected : p->in_selected; |
| 428 | 278 } |
| 279 | |
| 280 void | |
| 853 | 281 set_process_selected_p (Lisp_Process *p, int in_selected, int err_selected) |
| 428 | 282 { |
| 853 | 283 p->in_selected = !!in_selected; |
| 284 p->err_selected = !!err_selected; | |
| 428 | 285 } |
| 286 | |
| 287 int | |
| 440 | 288 connected_via_filedesc_p (Lisp_Process *p) |
| 428 | 289 { |
| 290 return MAYBE_INT_PROCMETH (tooltalk_connection_p, (p)); | |
| 291 } | |
| 292 | |
| 293 #ifdef HAVE_SOCKETS | |
| 294 int | |
| 295 network_connection_p (Lisp_Object process) | |
| 296 { | |
| 297 return CONSP (XPROCESS (process)->pid); | |
| 298 } | |
| 299 #endif | |
| 300 | |
| 301 DEFUN ("processp", Fprocessp, 1, 1, 0, /* | |
| 302 Return t if OBJECT is a process. | |
| 303 */ | |
| 444 | 304 (object)) |
| 428 | 305 { |
| 444 | 306 return PROCESSP (object) ? Qt : Qnil; |
| 428 | 307 } |
| 308 | |
| 440 | 309 DEFUN ("process-live-p", Fprocess_live_p, 1, 1, 0, /* |
| 310 Return t if OBJECT is a process that is alive. | |
| 311 */ | |
| 444 | 312 (object)) |
| 440 | 313 { |
| 444 | 314 return PROCESSP (object) && PROCESS_LIVE_P (XPROCESS (object)) |
| 315 ? Qt : Qnil; | |
| 440 | 316 } |
| 317 | |
| 863 | 318 #if 0 |
| 319 /* This is a reasonable definition for this new primitive. Kyle sez: | |
| 320 | |
| 321 "The patch looks OK to me except for the creation and exporting of the | |
| 322 Fprocess_readable_p function. I don't think a new Lisp function | |
| 323 should be created until we know something actually needs it. If | |
| 324 we later want to give process-readable-p different semantics it | |
| 325 may be hard to do it and stay compatible with what we hastily | |
| 326 create today." | |
| 327 | |
| 328 He's right, not yet. Let's discuss the semantics on XEmacs Design | |
| 329 before enabling this. | |
| 330 */ | |
| 331 DEFUN ("process-readable-p", Fprocess_readable_p, 1, 1, 0, /* | |
| 332 Return t if OBJECT is a process from which input may be available. | |
| 333 */ | |
| 334 (object)) | |
| 335 { | |
| 336 return PROCESSP (object) && PROCESS_READABLE_P (XPROCESS (object)) | |
| 337 ? Qt : Qnil; | |
| 338 } | |
| 339 #endif | |
| 340 | |
| 428 | 341 DEFUN ("process-list", Fprocess_list, 0, 0, 0, /* |
| 342 Return a list of all processes. | |
| 343 */ | |
| 344 ()) | |
| 345 { | |
| 346 return Fcopy_sequence (Vprocess_list); | |
| 347 } | |
| 348 | |
| 349 DEFUN ("get-process", Fget_process, 1, 1, 0, /* | |
| 444 | 350 Return the process named PROCESS-NAME (a string), or nil if there is none. |
| 351 PROCESS-NAME may also be a process; if so, the value is that process. | |
| 428 | 352 */ |
| 444 | 353 (process_name)) |
| 428 | 354 { |
| 444 | 355 if (PROCESSP (process_name)) |
| 356 return process_name; | |
| 428 | 357 |
| 358 if (!gc_in_progress) | |
| 359 /* this only gets called during GC when emacs is going away as a result | |
| 360 of a signal or crash. */ | |
| 444 | 361 CHECK_STRING (process_name); |
| 428 | 362 |
| 444 | 363 { |
| 364 LIST_LOOP_2 (process, Vprocess_list) | |
| 365 if (internal_equal (process_name, XPROCESS (process)->name, 0)) | |
| 366 return process; | |
| 367 } | |
| 428 | 368 return Qnil; |
| 369 } | |
| 370 | |
| 371 DEFUN ("get-buffer-process", Fget_buffer_process, 1, 1, 0, /* | |
| 372 Return the (or, a) process associated with BUFFER. | |
| 373 BUFFER may be a buffer or the name of one. | |
| 374 */ | |
| 444 | 375 (buffer)) |
| 428 | 376 { |
| 444 | 377 if (NILP (buffer)) return Qnil; |
| 378 buffer = Fget_buffer (buffer); | |
| 379 if (NILP (buffer)) return Qnil; | |
| 428 | 380 |
| 444 | 381 { |
| 382 LIST_LOOP_2 (process, Vprocess_list) | |
| 383 if (EQ (XPROCESS (process)->buffer, buffer)) | |
| 384 return process; | |
| 385 } | |
| 428 | 386 return Qnil; |
| 387 } | |
| 388 | |
| 389 /* This is how commands for the user decode process arguments. It | |
| 390 accepts a process, a process name, a buffer, a buffer name, or nil. | |
| 391 Buffers denote the first process in the buffer, and nil denotes the | |
| 392 current buffer. */ | |
| 393 | |
| 394 static Lisp_Object | |
| 395 get_process (Lisp_Object name) | |
| 396 { | |
| 444 | 397 Lisp_Object buffer; |
| 428 | 398 |
| 399 #ifdef I18N3 | |
| 400 /* #### Look more closely into translating process names. */ | |
| 401 #endif | |
| 402 | |
| 403 /* This may be called during a GC from process_send_signal() from | |
| 2500 | 404 kill_buffer_processes() if emacs decides to ABORT(). */ |
| 428 | 405 if (PROCESSP (name)) |
| 406 return name; | |
| 444 | 407 else if (STRINGP (name)) |
| 428 | 408 { |
| 444 | 409 Lisp_Object object = Fget_process (name); |
| 410 if (PROCESSP (object)) | |
| 411 return object; | |
| 412 | |
| 413 buffer = Fget_buffer (name); | |
| 414 if (BUFFERP (buffer)) | |
| 415 goto have_buffer_object; | |
| 416 | |
| 563 | 417 invalid_argument ("Process does not exist", name); |
| 428 | 418 } |
| 419 else if (NILP (name)) | |
| 444 | 420 { |
| 421 buffer = Fcurrent_buffer (); | |
| 422 goto have_buffer_object; | |
| 423 } | |
| 424 else if (BUFFERP (name)) | |
| 425 { | |
| 426 Lisp_Object process; | |
| 427 buffer = name; | |
| 428 | 428 |
| 444 | 429 have_buffer_object: |
| 430 process = Fget_buffer_process (buffer); | |
| 431 if (PROCESSP (process)) | |
| 432 return process; | |
| 433 | |
| 563 | 434 invalid_argument ("Buffer has no process", buffer); |
| 428 | 435 } |
| 436 else | |
| 444 | 437 return get_process (Fsignal (Qwrong_type_argument, |
| 771 | 438 (list2 (build_msg_string ("process or buffer or nil"), |
| 444 | 439 name)))); |
| 428 | 440 } |
| 441 | |
| 442 DEFUN ("process-id", Fprocess_id, 1, 1, 0, /* | |
| 443 Return the process id of PROCESS. | |
| 444 This is the pid of the Unix process which PROCESS uses or talks to. | |
| 445 For a network connection, this value is a cons of | |
| 446 (foreign-network-port . foreign-host-name). | |
| 447 */ | |
| 444 | 448 (process)) |
| 428 | 449 { |
| 450 Lisp_Object pid; | |
| 444 | 451 CHECK_PROCESS (process); |
| 428 | 452 |
| 444 | 453 pid = XPROCESS (process)->pid; |
| 454 if (network_connection_p (process)) | |
| 428 | 455 /* return Qnil; */ |
| 456 return Fcons (Fcar (pid), Fcdr (pid)); | |
| 457 else | |
| 458 return pid; | |
| 459 } | |
| 460 | |
| 461 DEFUN ("process-name", Fprocess_name, 1, 1, 0, /* | |
| 462 Return the name of PROCESS, as a string. | |
| 463 This is the name of the program invoked in PROCESS, | |
| 464 possibly modified to make it unique among process names. | |
| 465 */ | |
| 444 | 466 (process)) |
| 428 | 467 { |
| 444 | 468 CHECK_PROCESS (process); |
| 469 return XPROCESS (process)->name; | |
| 428 | 470 } |
| 471 | |
| 472 DEFUN ("process-command", Fprocess_command, 1, 1, 0, /* | |
| 473 Return the command that was executed to start PROCESS. | |
| 474 This is a list of strings, the first string being the program executed | |
| 475 and the rest of the strings being the arguments given to it. | |
| 476 */ | |
| 444 | 477 (process)) |
| 428 | 478 { |
| 444 | 479 CHECK_PROCESS (process); |
| 480 return XPROCESS (process)->command; | |
| 428 | 481 } |
| 482 | |
| 483 | |
| 484 /************************************************************************/ | |
| 485 /* creating a process */ | |
| 486 /************************************************************************/ | |
| 487 | |
| 563 | 488 DOESNT_RETURN |
|
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489 report_process_error (const Ascbyte *reason, Lisp_Object data) |
| 563 | 490 { |
|
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491 report_error_with_errno (Qprocess_error, reason, data); |
| 563 | 492 } |
| 493 | |
| 494 DOESNT_RETURN | |
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495 report_network_error (const Ascbyte *reason, Lisp_Object data) |
| 563 | 496 { |
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497 report_error_with_errno (Qnetwork_error, reason, data); |
| 563 | 498 } |
| 499 | |
| 428 | 500 Lisp_Object |
| 501 make_process_internal (Lisp_Object name) | |
| 502 { | |
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503 Lisp_Object name1; |
| 428 | 504 int i; |
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505 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (process); |
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506 Lisp_Process *p = XPROCESS (obj); |
| 428 | 507 |
| 1204 | 508 #define MARKED_SLOT(x) p->x = Qnil; |
| 509 #include "process-slots.h" | |
| 510 | |
| 428 | 511 /* If name is already in use, modify it until it is unused. */ |
| 512 name1 = name; | |
| 513 for (i = 1; ; i++) | |
| 514 { | |
|
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515 Ascbyte suffix[10]; |
| 428 | 516 Lisp_Object tem = Fget_process (name1); |
| 517 if (NILP (tem)) | |
| 518 break; | |
| 519 sprintf (suffix, "<%d>", i); | |
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520 name1 = concat2 (name, build_ascstring (suffix)); |
| 428 | 521 } |
| 522 name = name1; | |
| 523 p->name = name; | |
| 524 | |
| 525 p->mark = Fmake_marker (); | |
| 853 | 526 p->stderr_mark = Fmake_marker (); |
| 428 | 527 p->status_symbol = Qrun; |
| 528 | |
| 529 MAYBE_PROCMETH (alloc_process_data, (p)); | |
| 530 | |
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531 Vprocess_list = Fcons (obj, Vprocess_list); |
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532 return obj; |
| 428 | 533 } |
| 534 | |
| 535 void | |
| 853 | 536 init_process_io_handles (Lisp_Process *p, void* in, void* out, void* err, |
| 537 int flags) | |
| 428 | 538 { |
| 853 | 539 USID in_usid, err_usid; |
| 771 | 540 Lisp_Object incode, outcode; |
| 541 | |
| 853 | 542 if (flags & STREAM_NETWORK_CONNECTION) |
| 543 { | |
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544 if (!LISTP (Vdefault_network_coding_system) || |
| 853 | 545 NILP (incode = (find_coding_system_for_text_file |
| 546 (Fcar (Vdefault_network_coding_system), 1))) || | |
| 547 NILP (outcode = (find_coding_system_for_text_file | |
| 548 (Fcdr (Vdefault_network_coding_system), 0)))) | |
| 549 signal_error (Qinvalid_state, | |
| 550 "Bogus value for `default-network-coding-system'", | |
| 551 Vdefault_network_coding_system); | |
| 552 } | |
| 553 else | |
| 554 { | |
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555 if (!LISTP (Vdefault_process_coding_system) || |
| 853 | 556 NILP (incode = (find_coding_system_for_text_file |
| 557 (Fcar (Vdefault_process_coding_system), 1))) || | |
| 558 NILP (outcode = (find_coding_system_for_text_file | |
| 559 (Fcdr (Vdefault_process_coding_system), 0)))) | |
| 560 signal_error (Qinvalid_state, | |
| 561 "Bogus value for `default-process-coding-system'", | |
| 562 Vdefault_process_coding_system); | |
| 563 } | |
| 771 | 564 |
| 784 | 565 if (!NILP (Vcoding_system_for_read) && |
| 566 NILP (incode = (find_coding_system_for_text_file | |
| 567 (Vcoding_system_for_read, 1)))) | |
| 568 signal_error (Qinvalid_state, | |
| 569 "Bogus value for `coding-system-for-read'", | |
| 570 Vcoding_system_for_read); | |
| 571 | |
| 572 if (!NILP (Vcoding_system_for_write) && | |
| 573 NILP (outcode = (find_coding_system_for_text_file | |
| 574 (Vcoding_system_for_write, 0)))) | |
| 575 signal_error (Qinvalid_state, | |
| 576 "Bogus value for `coding-system-for-write'", | |
| 577 Vcoding_system_for_write); | |
| 578 | |
| 853 | 579 event_stream_create_io_streams (in, out, err, |
| 580 &p->pipe_instream, | |
| 581 &p->pipe_outstream, | |
| 582 &p->pipe_errstream, | |
| 583 &in_usid, &err_usid, | |
| 584 flags); | |
| 428 | 585 |
| 853 | 586 if (in_usid == USID_ERROR || err_usid == USID_ERROR) |
| 563 | 587 signal_error (Qprocess_error, "Setting up communication with subprocess", |
| 853 | 588 wrap_process (p)); |
| 428 | 589 |
| 853 | 590 if (in_usid != USID_DONTHASH) |
| 428 | 591 { |
| 444 | 592 Lisp_Object process = Qnil; |
| 793 | 593 process = wrap_process (p); |
| 5013 | 594 puthash ((const void*) in_usid, STORE_LISP_IN_VOID (process), usid_to_process); |
| 428 | 595 } |
| 596 | |
| 853 | 597 if (err_usid != USID_DONTHASH) |
| 598 { | |
| 599 Lisp_Object process = Qnil; | |
| 600 process = wrap_process (p); | |
| 5013 | 601 puthash ((const void*) err_usid, STORE_LISP_IN_VOID (process), |
| 853 | 602 usid_to_process); |
| 603 } | |
| 604 | |
| 605 MAYBE_PROCMETH (init_process_io_handles, (p, in, out, err, flags)); | |
| 428 | 606 |
| 771 | 607 p->coding_instream = |
| 800 | 608 make_coding_input_stream (XLSTREAM (p->pipe_instream), incode, |
| 609 CODING_DECODE, 0); | |
| 853 | 610 if (!NILP (p->pipe_errstream)) |
| 611 p->coding_errstream = | |
| 612 make_coding_input_stream | |
| 613 (XLSTREAM (p->pipe_errstream), incode, CODING_DECODE, 0); | |
| 771 | 614 p->coding_outstream = |
| 800 | 615 make_coding_output_stream (XLSTREAM (p->pipe_outstream), outcode, |
| 616 CODING_ENCODE, 0); | |
| 428 | 617 } |
| 618 | |
| 619 static void | |
| 620 create_process (Lisp_Object process, Lisp_Object *argv, int nargv, | |
| 853 | 621 Lisp_Object program, Lisp_Object cur_dir, |
| 622 int separate_err) | |
| 428 | 623 { |
| 440 | 624 Lisp_Process *p = XPROCESS (process); |
| 428 | 625 int pid; |
| 626 | |
| 627 /* *_create_process may change status_symbol, if the process | |
| 628 is a kind of "fire-and-forget" (no I/O, unwaitable) */ | |
| 629 p->status_symbol = Qrun; | |
| 630 p->exit_code = 0; | |
| 631 | |
| 853 | 632 pid = PROCMETH (create_process, (p, argv, nargv, program, cur_dir, |
| 633 separate_err)); | |
| 428 | 634 |
| 635 p->pid = make_int (pid); | |
| 863 | 636 if (PROCESS_READABLE_P (p)) |
| 853 | 637 event_stream_select_process (p, 1, 1); |
| 428 | 638 } |
| 639 | |
| 640 /* This function is the unwind_protect form for Fstart_process_internal. If | |
| 444 | 641 PROCESS doesn't have its pid set, then we know someone has signalled |
| 428 | 642 an error and the process wasn't started successfully, so we should |
| 643 remove it from the process list. */ | |
| 444 | 644 static void remove_process (Lisp_Object process); |
| 428 | 645 static Lisp_Object |
| 444 | 646 start_process_unwind (Lisp_Object process) |
| 428 | 647 { |
| 444 | 648 /* Was PROCESS started successfully? */ |
| 649 if (EQ (XPROCESS (process)->pid, Qnil)) | |
| 650 remove_process (process); | |
| 428 | 651 return Qnil; |
| 652 } | |
| 653 | |
| 654 DEFUN ("start-process-internal", Fstart_process_internal, 3, MANY, 0, /* | |
| 853 | 655 Internal function to start a program in a subprocess. |
| 656 Lisp callers should use `start-process' instead. | |
| 657 | |
| 658 Returns the process object for it. | |
| 428 | 659 Args are NAME BUFFER PROGRAM &rest PROGRAM-ARGS |
| 660 NAME is name for process. It is modified if necessary to make it unique. | |
| 661 BUFFER is the buffer or (buffer-name) to associate with the process. | |
| 662 Process output goes at end of that buffer, unless you specify | |
| 663 an output stream or filter function to handle the output. | |
| 664 BUFFER may be also nil, meaning that this process is not associated | |
| 853 | 665 with any buffer. |
| 666 BUFFER can also have the form (REAL-BUFFER STDERR-BUFFER); in that case, | |
| 667 REAL-BUFFER says what to do with standard output, as above, | |
| 668 while STDERR-BUFFER says what to do with standard error in the child. | |
| 669 STDERR-BUFFER may be nil (discard standard error output, unless a stderr | |
| 670 filter is set). Note that if you do not use this form at process creation, | |
| 671 stdout and stderr will be mixed in the output buffer, and this cannot be | |
| 672 changed, even by setting a stderr filter. | |
| 428 | 673 Third arg is program file name. It is searched for as in the shell. |
| 674 Remaining arguments are strings to give program as arguments. | |
| 853 | 675 |
| 676 Read and write coding systems for the process are determined from | |
| 677 `coding-system-for-read' and `coding-system-for-write' (intended as | |
| 678 overriding coding systems to be *bound* by Lisp code, not set), or | |
| 679 from `default-process-coding-system' if either or both are nil. You can | |
| 680 change the coding systems later on using `set-process-coding-system', | |
| 681 `set-process-input-coding-system', or `set-process-output-coding-system'. | |
| 682 | |
| 683 See also `set-process-filter' and `set-process-stderr-filter'. | |
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684 |
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685 arguments: (NAME BUFFER PROGRAM &rest PROGRAM-ARGS) |
| 428 | 686 */ |
| 687 (int nargs, Lisp_Object *args)) | |
| 688 { | |
| 689 /* This function can call lisp */ | |
| 853 | 690 Lisp_Object buffer, stderr_buffer, name, program, process, current_dir; |
| 691 int separate_stderr; | |
| 428 | 692 Lisp_Object tem; |
| 910 | 693 int i; |
| 428 | 694 int speccount = specpdl_depth (); |
| 695 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 696 | |
| 697 name = args[0]; | |
| 698 buffer = args[1]; | |
| 699 program = args[2]; | |
| 700 current_dir = Qnil; | |
| 701 | |
| 702 /* Protect against various file handlers doing GCs below. */ | |
| 703 GCPRO3 (buffer, program, current_dir); | |
| 704 | |
| 853 | 705 if (CONSP (buffer)) |
| 706 { | |
| 707 if (!CONSP (XCDR (buffer))) | |
| 708 invalid_argument ("Invalid BUFFER argument to `start-process'", | |
| 709 buffer); | |
| 710 if (!NILP (XCDR (XCDR (buffer)))) | |
| 711 invalid_argument ("Invalid BUFFER argument to `start-process'", | |
| 712 buffer); | |
| 713 stderr_buffer = XCAR (XCDR (buffer)); | |
| 714 buffer = XCAR (buffer); | |
| 715 separate_stderr = 1; | |
| 716 } | |
| 717 else | |
| 718 { | |
| 719 stderr_buffer = Qnil; | |
| 720 separate_stderr = 0; | |
| 721 } | |
| 722 | |
| 428 | 723 if (!NILP (buffer)) |
| 724 buffer = Fget_buffer_create (buffer); | |
| 853 | 725 if (!NILP (stderr_buffer)) |
| 726 stderr_buffer = Fget_buffer_create (stderr_buffer); | |
| 428 | 727 |
| 728 CHECK_STRING (name); | |
| 729 CHECK_STRING (program); | |
| 910 | 730 for (i = 3; i < nargs; ++i) |
| 731 CHECK_STRING (args[i]); | |
| 428 | 732 |
| 733 /* Make sure that the child will be able to chdir to the current | |
| 502 | 734 buffer's current directory, or its unhandled equivalent. [[ We |
| 428 | 735 can't just have the child check for an error when it does the |
| 502 | 736 chdir, since it's in a vfork. ]] -- not any more, we don't use |
| 737 vfork. -ben | |
| 428 | 738 |
| 502 | 739 Note: These calls are spread out to insure that the return values |
| 740 of the calls (which may be newly-created strings) are properly | |
| 741 GC-protected. */ | |
| 428 | 742 current_dir = current_buffer->directory; |
| 502 | 743 /* If the current dir has no terminating slash, we'll get undesirable |
| 744 results, so put the slash back. */ | |
| 745 current_dir = Ffile_name_as_directory (current_dir); | |
| 428 | 746 current_dir = Funhandled_file_name_directory (current_dir); |
| 747 current_dir = expand_and_dir_to_file (current_dir, Qnil); | |
| 748 | |
| 749 #if 0 /* This loser breaks ange-ftp */ | |
| 750 /* dmoore - if you re-enable this code, you have to gcprotect | |
| 751 current_buffer through the above calls. */ | |
| 752 if (NILP (Ffile_accessible_directory_p (current_dir))) | |
| 563 | 753 signal_error (Qprocess_error, "Setting current directory", |
| 754 current_buffer->directory); | |
| 428 | 755 #endif /* 0 */ |
| 756 | |
| 757 /* If program file name is not absolute, search our path for it */ | |
| 826 | 758 if (!IS_DIRECTORY_SEP (string_byte (program, 0)) |
| 428 | 759 && !(XSTRING_LENGTH (program) > 1 |
| 826 | 760 && IS_DEVICE_SEP (string_byte (program, 1)))) |
| 428 | 761 { |
| 762 struct gcpro ngcpro1; | |
| 763 | |
| 764 tem = Qnil; | |
| 765 NGCPRO1 (tem); | |
| 766 locate_file (Vexec_path, program, Vlisp_EXEC_SUFFIXES, &tem, X_OK); | |
| 767 if (NILP (tem)) | |
| 563 | 768 signal_error (Qprocess_error, "Searching for program", program); |
| 428 | 769 program = Fexpand_file_name (tem, Qnil); |
| 770 NUNGCPRO; | |
| 771 } | |
| 772 else | |
| 773 { | |
| 442 | 774 /* we still need to canonicalize it and ensure it has the proper |
| 775 ending, e.g. .exe */ | |
| 776 struct gcpro ngcpro1; | |
| 777 | |
| 778 tem = Qnil; | |
| 779 NGCPRO1 (tem); | |
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780 locate_file (list1 (build_ascstring ("")), program, Vlisp_EXEC_SUFFIXES, |
| 442 | 781 &tem, X_OK); |
| 782 if (NILP (tem)) | |
| 563 | 783 signal_error (Qprocess_error, "Searching for program", program); |
| 442 | 784 program = tem; |
| 785 NUNGCPRO; | |
| 428 | 786 } |
| 787 | |
| 442 | 788 if (!NILP (Ffile_directory_p (program))) |
| 789 invalid_operation ("Specified program for new process is a directory", | |
| 790 program); | |
| 791 | |
| 444 | 792 process = make_process_internal (name); |
| 428 | 793 |
| 444 | 794 XPROCESS (process)->buffer = buffer; |
| 853 | 795 XPROCESS (process)->stderr_buffer = stderr_buffer; |
| 796 XPROCESS (process)->separate_stderr = separate_stderr; | |
| 814 | 797 XPROCESS (process)->command = Flist (nargs - 2, args + 2); |
| 428 | 798 |
| 799 /* Make the process marker point into the process buffer (if any). */ | |
| 800 if (!NILP (buffer)) | |
| 444 | 801 Fset_marker (XPROCESS (process)->mark, |
| 428 | 802 make_int (BUF_ZV (XBUFFER (buffer))), buffer); |
| 853 | 803 if (!NILP (stderr_buffer)) |
| 804 Fset_marker (XPROCESS (process)->stderr_mark, | |
| 805 make_int (BUF_ZV (XBUFFER (stderr_buffer))), stderr_buffer); | |
| 428 | 806 |
| 807 /* If an error occurs and we can't start the process, we want to | |
| 808 remove it from the process list. This means that each error | |
| 809 check in create_process doesn't need to call remove_process | |
| 810 itself; it's all taken care of here. */ | |
| 444 | 811 record_unwind_protect (start_process_unwind, process); |
| 428 | 812 |
| 853 | 813 create_process (process, args + 3, nargs - 3, program, current_dir, |
| 814 separate_stderr); | |
| 428 | 815 |
| 816 UNGCPRO; | |
| 771 | 817 return unbind_to_1 (speccount, process); |
| 428 | 818 } |
| 819 | |
| 820 | |
| 821 #ifdef HAVE_SOCKETS | |
| 822 | |
| 823 | |
| 824 /* #### The network support is fairly synthetical. What we actually | |
| 825 need is a single function, which supports all datagram, stream and | |
| 826 packet stream connections, arbitrary protocol families should they | |
| 827 be supported by the target system, multicast groups, in both data | |
| 828 and control rooted/nonrooted flavors, service quality etc whatever | |
| 829 is supported by the underlying network. | |
| 830 | |
| 831 It must accept a property list describing the connection. The current | |
| 832 functions must then go to lisp and provide a suitable list for the | |
| 833 generalized connection function. | |
| 834 | |
| 835 Both UNIX and Win32 support BSD sockets, and there are many extensions | |
| 836 available (Sockets 2 spec). | |
| 837 | |
| 838 A todo is define a consistent set of properties abstracting a | |
| 839 network connection. -kkm | |
| 840 */ | |
| 841 | |
| 842 | |
| 843 /* open a TCP network connection to a given HOST/SERVICE. Treated | |
| 844 exactly like a normal process when reading and writing. Only | |
| 845 differences are in status display and process deletion. A network | |
| 846 connection has no PID; you cannot signal it. All you can do is | |
| 847 deactivate and close it via delete-process */ | |
| 848 | |
| 442 | 849 DEFUN ("open-network-stream-internal", Fopen_network_stream_internal, 4, 5, |
| 850 0, /* | |
| 428 | 851 Open a TCP connection for a service to a host. |
| 444 | 852 Return a process object to represent the connection. |
| 428 | 853 Input and output work as for subprocesses; `delete-process' closes it. |
| 854 | |
| 855 NAME is name for process. It is modified if necessary to make it unique. | |
| 856 BUFFER is the buffer (or buffer-name) to associate with the process. | |
| 857 Process output goes at end of that buffer, unless you specify | |
| 858 an output stream or filter function to handle the output. | |
| 859 BUFFER may also be nil, meaning that this process is not associated | |
| 860 with any buffer. | |
| 444 | 861 Third arg HOST (a string) is the name of the host to connect to, |
| 862 or its IP address. | |
| 863 Fourth arg SERVICE is the name of the service desired (a string), | |
| 864 or an integer specifying a port number to connect to. | |
| 3025 | 865 Optional fifth arg PROTOCOL is a network protocol. Currently only `tcp' |
| 866 (Transmission Control Protocol) and `udp' (User Datagram Protocol) are | |
| 867 supported. When omitted, `tcp' is assumed. | |
| 428 | 868 |
| 442 | 869 Output via `process-send-string' and input via buffer or filter (see |
| 428 | 870 `set-process-filter') are stream-oriented. That means UDP datagrams are |
| 871 not guaranteed to be sent and received in discrete packets. (But small | |
| 872 datagrams around 500 bytes that are not truncated by `process-send-string' | |
| 444 | 873 are usually fine.) Note further that the UDP protocol does not guard |
| 874 against lost packets. | |
| 428 | 875 */ |
| 876 (name, buffer, host, service, protocol)) | |
| 877 { | |
| 878 /* This function can GC */ | |
| 444 | 879 Lisp_Object process = Qnil; |
| 428 | 880 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, ngcpro1; |
| 881 void *inch, *outch; | |
| 882 | |
| 883 GCPRO5 (name, buffer, host, service, protocol); | |
| 884 CHECK_STRING (name); | |
| 885 | |
| 771 | 886 if (NILP (protocol)) |
| 428 | 887 protocol = Qtcp; |
| 888 else | |
| 889 CHECK_SYMBOL (protocol); | |
| 890 | |
| 891 /* Since this code is inside HAVE_SOCKETS, existence of | |
| 892 open_network_stream is mandatory */ | |
| 893 PROCMETH (open_network_stream, (name, host, service, protocol, | |
| 894 &inch, &outch)); | |
| 895 | |
| 896 if (!NILP (buffer)) | |
| 897 buffer = Fget_buffer_create (buffer); | |
| 444 | 898 process = make_process_internal (name); |
| 899 NGCPRO1 (process); | |
| 428 | 900 |
| 444 | 901 XPROCESS (process)->pid = Fcons (service, host); |
| 902 XPROCESS (process)->buffer = buffer; | |
| 771 | 903 init_process_io_handles (XPROCESS (process), (void *) inch, (void *) outch, |
| 853 | 904 (void *) -1, |
| 428 | 905 STREAM_NETWORK_CONNECTION); |
| 906 | |
| 853 | 907 event_stream_select_process (XPROCESS (process), 1, 1); |
| 428 | 908 |
| 1204 | 909 NUNGCPRO; |
| 428 | 910 UNGCPRO; |
| 444 | 911 return process; |
| 428 | 912 } |
| 913 | |
| 914 #ifdef HAVE_MULTICAST | |
| 915 | |
| 916 DEFUN ("open-multicast-group-internal", Fopen_multicast_group_internal, 5, 5, 0, /* | |
| 917 Open a multicast connection on the specified dest/port/ttl. | |
| 444 | 918 Return a process object to represent the connection. |
| 428 | 919 Input and output work as for subprocesses; `delete-process' closes it. |
| 920 | |
| 921 NAME is name for process. It is modified if necessary to make it unique. | |
| 922 BUFFER is the buffer (or buffer-name) to associate with the process. | |
| 923 Process output goes at end of that buffer, unless you specify | |
| 924 an output stream or filter function to handle the output. | |
| 925 BUFFER may also be nil, meaning that this process is not associated | |
| 926 with any buffer. | |
| 927 Third, fourth and fifth args are the multicast destination group, port and ttl. | |
| 928 dest must be an internet address between 224.0.0.0 and 239.255.255.255 | |
| 929 port is a communication port like in traditional unicast | |
| 930 ttl is the time-to-live (15 for site, 63 for region and 127 for world) | |
| 931 */ | |
| 932 (name, buffer, dest, port, ttl)) | |
| 933 { | |
| 934 /* This function can GC */ | |
| 444 | 935 Lisp_Object process = Qnil; |
| 428 | 936 struct gcpro gcpro1; |
| 937 void *inch, *outch; | |
| 938 | |
| 939 CHECK_STRING (name); | |
| 940 | |
| 941 /* Since this code is inside HAVE_MULTICAST, existence of | |
| 771 | 942 open_multicast_group is mandatory */ |
| 428 | 943 PROCMETH (open_multicast_group, (name, dest, port, ttl, |
| 944 &inch, &outch)); | |
| 945 | |
| 946 if (!NILP (buffer)) | |
| 947 buffer = Fget_buffer_create (buffer); | |
| 948 | |
| 444 | 949 process = make_process_internal (name); |
| 950 GCPRO1 (process); | |
| 428 | 951 |
| 444 | 952 XPROCESS (process)->pid = Fcons (port, dest); |
| 953 XPROCESS (process)->buffer = buffer; | |
| 853 | 954 init_process_io_handles (XPROCESS (process), (void *) inch, (void *) outch, |
| 955 (void *) -1, | |
| 428 | 956 STREAM_NETWORK_CONNECTION); |
| 957 | |
| 853 | 958 event_stream_select_process (XPROCESS (process), 1, 1); |
| 428 | 959 |
| 960 UNGCPRO; | |
| 444 | 961 return process; |
| 428 | 962 } |
| 963 #endif /* HAVE_MULTICAST */ | |
| 964 | |
| 965 #endif /* HAVE_SOCKETS */ | |
| 966 | |
| 967 Lisp_Object | |
| 968 canonicalize_host_name (Lisp_Object host) | |
| 969 { | |
| 970 return PROCMETH_OR_GIVEN (canonicalize_host_name, (host), host); | |
| 971 } | |
| 972 | |
| 973 | |
| 974 DEFUN ("set-process-window-size", Fset_process_window_size, 3, 3, 0, /* | |
| 975 Tell PROCESS that it has logical window size HEIGHT and WIDTH. | |
| 976 */ | |
| 444 | 977 (process, height, width)) |
| 428 | 978 { |
| 444 | 979 CHECK_PROCESS (process); |
|
5307
c096d8051f89
Have NATNUMP give t for positive bignums; check limits appropriately.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5255
diff
changeset
|
980 check_integer_range (height, Qzero, make_integer (EMACS_INT_MAX)); |
|
c096d8051f89
Have NATNUMP give t for positive bignums; check limits appropriately.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5255
diff
changeset
|
981 check_integer_range (width, Qzero, make_integer (EMACS_INT_MAX)); |
| 428 | 982 return |
| 444 | 983 MAYBE_INT_PROCMETH (set_window_size, |
| 984 (XPROCESS (process), XINT (height), XINT (width))) <= 0 | |
| 428 | 985 ? Qnil : Qt; |
| 986 } | |
| 987 | |
| 988 | |
| 989 /************************************************************************/ | |
| 990 /* Process I/O */ | |
| 991 /************************************************************************/ | |
| 992 | |
| 844 | 993 /* Set up PROCESS's buffer for insertion of process data at PROCESS's |
| 994 mark. | |
| 995 | |
| 996 Sets the current buffer to PROCESS's buffer, inhibits read only, | |
| 997 remembers current point, sets point to PROCESS'S mark, widens if | |
| 998 necessary. | |
| 999 */ | |
| 1000 static int | |
| 853 | 1001 process_setup_for_insertion (Lisp_Object process, int read_stderr) |
| 844 | 1002 { |
| 1003 Lisp_Process *p = XPROCESS (process); | |
| 1004 int spec = specpdl_depth (); | |
| 853 | 1005 Lisp_Object buffer = read_stderr ? p->stderr_buffer : p->buffer; |
| 1006 Lisp_Object mark = read_stderr ? p->stderr_mark : p->mark; | |
| 1007 struct buffer *buf = XBUFFER (buffer); | |
| 844 | 1008 Charbpos output_pt; |
| 1009 | |
| 1010 if (buf != current_buffer) | |
| 1011 { | |
| 1012 record_unwind_protect (save_current_buffer_restore, | |
| 1013 Fcurrent_buffer ()); | |
| 1014 set_buffer_internal (buf); | |
| 1015 } | |
| 1016 | |
| 1017 record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
| 1018 specbind (Qinhibit_read_only, Qt); | |
| 854 | 1019 |
| 844 | 1020 /* Insert new output into buffer |
| 1021 at the current end-of-output marker, | |
| 1022 thus preserving logical ordering of input and output. */ | |
| 853 | 1023 if (XMARKER (mark)->buffer) |
| 1024 output_pt = marker_position (mark); | |
| 844 | 1025 else |
| 1026 output_pt = BUF_ZV (buf); | |
| 1027 | |
| 1028 /* If the output marker is outside of the visible region, save | |
| 1029 the restriction and widen. */ | |
| 1030 if (! (BUF_BEGV (buf) <= output_pt && output_pt <= BUF_ZV (buf))) | |
| 1031 { | |
| 1032 record_unwind_protect (save_restriction_restore, | |
| 1033 save_restriction_save (buf)); | |
| 1034 Fwiden (wrap_buffer (buf)); | |
| 1035 } | |
| 1036 | |
| 1037 BUF_SET_PT (buf, output_pt); | |
| 1038 return spec; | |
| 1039 } | |
| 1040 | |
| 428 | 1041 /* Read pending output from the process channel, |
| 1042 starting with our buffered-ahead character if we have one. | |
| 1043 Yield number of characters read. | |
| 1044 | |
| 1045 This function reads at most 1024 bytes. | |
| 1046 If you want to read all available subprocess output, | |
| 1047 you must call it repeatedly until it returns zero. */ | |
| 1048 | |
| 1049 Charcount | |
| 853 | 1050 read_process_output (Lisp_Object process, int read_stderr) |
| 428 | 1051 { |
| 1052 /* This function can GC */ | |
| 1053 Bytecount nbytes, nchars; | |
| 867 | 1054 Ibyte chars[1025]; |
| 428 | 1055 Lisp_Object outstream; |
| 444 | 1056 Lisp_Process *p = XPROCESS (process); |
| 853 | 1057 Lisp_Object filter = read_stderr ? p->stderr_filter : p->filter; |
| 1058 Lisp_Object buffer = read_stderr ? p->stderr_buffer : p->buffer; | |
| 1059 Lisp_Object mark = read_stderr ? p->stderr_mark : p->mark; | |
| 428 | 1060 |
| 1061 /* If there is a lot of output from the subprocess, the loop in | |
| 1062 execute_internal_event() might call read_process_output() more | |
| 1063 than once. If the filter that was executed from one of these | |
| 1064 calls set the filter to t, we have to stop now. Return -1 rather | |
| 1065 than 0 so execute_internal_event() doesn't close the process. | |
| 1066 Really, the loop in execute_internal_event() should check itself | |
| 1067 for a process-filter change, like in status_notify(); but the | |
| 1068 struct Lisp_Process is not exported outside of this file. */ | |
| 863 | 1069 if (!PROCESS_READABLE_P (p)) |
| 853 | 1070 { |
| 1071 errno = 0; | |
| 1072 return -1; /* already closed */ | |
| 1073 } | |
| 428 | 1074 |
| 853 | 1075 if (!NILP (filter) && (p->filter_does_read)) |
| 428 | 1076 { |
| 1077 Lisp_Object filter_result; | |
| 1078 | |
| 1079 /* Some weird FSFmacs crap here with | |
| 853 | 1080 Vdeactivate_mark and current_buffer->keymap. |
| 1081 Some FSF junk with running_asynch_code, to preserve the match | |
| 1082 data. Not necessary because we don't call process filters | |
| 1083 asynchronously (i.e. from within QUIT). */ | |
| 1084 /* Don't catch errors here; we're not in any critical code. */ | |
| 1085 filter_result = call2 (filter, process, Qnil); | |
| 428 | 1086 CHECK_INT (filter_result); |
| 1087 return XINT (filter_result); | |
| 1088 } | |
| 1089 | |
| 853 | 1090 nbytes = Lstream_read (read_stderr ? XLSTREAM (DATA_ERRSTREAM (p)) : |
| 1091 XLSTREAM (DATA_INSTREAM (p)), chars, | |
| 771 | 1092 sizeof (chars) - 1); |
| 428 | 1093 if (nbytes <= 0) return nbytes; |
| 1094 | |
| 771 | 1095 if (debug_process_io) |
| 1096 { | |
| 1097 chars[nbytes] = '\0'; | |
| 1098 stderr_out ("Read: %s\n", chars); | |
| 1099 } | |
| 1100 | |
| 1101 /* !!#### if the coding system changed as a result of reading, we | |
| 1102 need to change the output coding system accordingly. */ | |
| 428 | 1103 nchars = bytecount_to_charcount (chars, nbytes); |
| 853 | 1104 outstream = filter; |
| 428 | 1105 if (!NILP (outstream)) |
| 1106 { | |
| 853 | 1107 /* Some FSF junk with running_asynch_code, to preserve the match |
| 1108 data. Not necessary because we don't call process filters | |
| 1109 asynchronously (i.e. from within QUIT). */ | |
| 1110 /* Don't catch errors here; we're not in any critical code. */ | |
| 1111 call2 (outstream, process, make_string (chars, nbytes)); | |
| 428 | 1112 return nchars; |
| 1113 } | |
| 1114 | |
| 1115 /* If no filter, write into buffer if it isn't dead. */ | |
| 853 | 1116 if (!NILP (buffer) && BUFFER_LIVE_P (XBUFFER (buffer))) |
| 428 | 1117 { |
| 844 | 1118 struct gcpro gcpro1; |
| 853 | 1119 struct buffer *buf = XBUFFER (buffer); |
| 1120 int spec = process_setup_for_insertion (process, read_stderr); | |
| 428 | 1121 |
| 844 | 1122 GCPRO1 (process); |
| 428 | 1123 |
| 1124 #if 0 | |
| 1125 /* This screws up initial display of the window. jla */ | |
| 1126 | |
| 1127 /* Insert before markers in case we are inserting where | |
| 1128 the buffer's mark is, and the user's next command is Meta-y. */ | |
| 1129 buffer_insert_raw_string_1 (buf, -1, chars, | |
| 1130 nbytes, INSDEL_BEFORE_MARKERS); | |
| 1131 #else | |
| 1132 buffer_insert_raw_string (buf, chars, nbytes); | |
| 1133 #endif | |
| 1134 | |
| 853 | 1135 Fset_marker (mark, make_int (BUF_PT (buf)), buffer); |
| 1136 | |
| 428 | 1137 MARK_MODELINE_CHANGED; |
| 844 | 1138 unbind_to (spec); |
| 428 | 1139 UNGCPRO; |
| 1140 } | |
| 1141 return nchars; | |
| 1142 } | |
| 853 | 1143 |
| 1144 int | |
| 1145 process_has_separate_stderr (Lisp_Object process) | |
| 1146 { | |
| 1147 return XPROCESS (process)->separate_stderr; | |
| 1148 } | |
| 1149 | |
| 859 | 1150 DEFUN ("process-has-separate-stderr-p", Fprocess_has_separate_stderr_p, 1, 1, |
| 1151 0, /* | |
| 1152 Return non-nil if process has stderr separate from stdout. | |
| 1153 */ | |
| 1154 (process)) | |
| 1155 { | |
| 1156 CHECK_PROCESS (process); | |
| 1157 return process_has_separate_stderr (process) ? Qt : Qnil; | |
| 1158 } | |
| 1159 | |
| 428 | 1160 |
| 1161 /* Sending data to subprocess */ | |
| 1162 | |
| 444 | 1163 /* send some data to process PROCESS. If NONRELOCATABLE is non-NULL, it |
| 428 | 1164 specifies the address of the data. Otherwise, the data comes from the |
| 1165 object RELOCATABLE (either a string or a buffer). START and LEN | |
| 1166 specify the offset and length of the data to send. | |
| 1167 | |
| 665 | 1168 Note that START and LEN are in Charbpos's if RELOCATABLE is a buffer, |
| 428 | 1169 and in Bytecounts otherwise. */ |
| 1170 | |
| 1171 void | |
| 444 | 1172 send_process (Lisp_Object process, |
| 867 | 1173 Lisp_Object relocatable, const Ibyte *nonrelocatable, |
| 428 | 1174 int start, int len) |
| 1175 { | |
| 1176 /* This function can GC */ | |
| 1177 struct gcpro gcpro1, gcpro2; | |
| 1178 Lisp_Object lstream = Qnil; | |
| 1179 | |
| 444 | 1180 GCPRO2 (process, lstream); |
| 428 | 1181 |
| 444 | 1182 if (NILP (DATA_OUTSTREAM (XPROCESS (process)))) |
| 563 | 1183 invalid_operation ("Process not open for writing", process); |
| 428 | 1184 |
| 1185 if (nonrelocatable) | |
| 1186 lstream = | |
| 1187 make_fixed_buffer_input_stream (nonrelocatable + start, len); | |
| 1188 else if (BUFFERP (relocatable)) | |
| 1189 lstream = make_lisp_buffer_input_stream (XBUFFER (relocatable), | |
| 1190 start, start + len, 0); | |
| 1191 else | |
| 1192 lstream = make_lisp_string_input_stream (relocatable, start, len); | |
| 1193 | |
| 771 | 1194 if (debug_process_io) |
| 1195 { | |
| 1196 if (nonrelocatable) | |
| 1197 stderr_out ("Writing: %s\n", nonrelocatable); | |
| 1198 else | |
| 1199 { | |
| 1200 stderr_out ("Writing: "); | |
| 1201 print_internal (relocatable, Qexternal_debugging_output, 0); | |
| 1202 } | |
| 1203 } | |
| 1204 | |
| 444 | 1205 PROCMETH (send_process, (process, XLSTREAM (lstream))); |
| 428 | 1206 |
| 1207 UNGCPRO; | |
| 1208 Lstream_delete (XLSTREAM (lstream)); | |
| 1209 } | |
| 1210 | |
| 1211 DEFUN ("process-tty-name", Fprocess_tty_name, 1, 1, 0, /* | |
| 1212 Return the name of the terminal PROCESS uses, or nil if none. | |
| 1213 This is the terminal that the process itself reads and writes on, | |
| 1214 not the name of the pty that Emacs uses to talk with that terminal. | |
| 1215 */ | |
| 444 | 1216 (process)) |
| 428 | 1217 { |
| 444 | 1218 CHECK_PROCESS (process); |
| 1204 | 1219 return XPROCESS (process)->tty_name; |
| 428 | 1220 } |
| 1221 | |
| 1222 DEFUN ("set-process-buffer", Fset_process_buffer, 2, 2, 0, /* | |
| 1223 Set buffer associated with PROCESS to BUFFER (a buffer, or nil). | |
| 2297 | 1224 Output from PROCESS is inserted in this buffer unless PROCESS has a filter. |
| 428 | 1225 */ |
| 444 | 1226 (process, buffer)) |
| 428 | 1227 { |
| 444 | 1228 CHECK_PROCESS (process); |
| 428 | 1229 if (!NILP (buffer)) |
| 1230 CHECK_BUFFER (buffer); | |
| 444 | 1231 XPROCESS (process)->buffer = buffer; |
| 428 | 1232 return buffer; |
| 1233 } | |
| 1234 | |
| 1235 DEFUN ("process-buffer", Fprocess_buffer, 1, 1, 0, /* | |
| 1236 Return the buffer PROCESS is associated with. | |
| 2297 | 1237 Output from PROCESS is inserted in this buffer unless PROCESS has a filter. |
| 1238 Set the buffer with `set-process-buffer'. | |
| 428 | 1239 */ |
| 444 | 1240 (process)) |
| 428 | 1241 { |
| 444 | 1242 CHECK_PROCESS (process); |
| 1243 return XPROCESS (process)->buffer; | |
| 428 | 1244 } |
| 1245 | |
| 853 | 1246 DEFUN ("set-process-stderr-buffer", Fset_process_stderr_buffer, 2, 2, 0, /* |
| 2297 | 1247 Output from the stderr of PROCESS is inserted in this buffer unless |
| 1248 PROCESS has a stderr filter. | |
| 853 | 1249 Set stderr buffer associated with PROCESS to BUFFER (a buffer, or nil). |
| 1250 */ | |
| 1251 (process, buffer)) | |
| 1252 { | |
| 1253 CHECK_PROCESS (process); | |
| 1254 if (!XPROCESS (process)->separate_stderr) | |
| 1255 invalid_change ("stdout and stderr not separate", process); | |
| 1256 if (!NILP (buffer)) | |
| 1257 CHECK_BUFFER (buffer); | |
| 1258 XPROCESS (process)->stderr_buffer = buffer; | |
| 1259 return buffer; | |
| 1260 } | |
| 1261 | |
| 1262 DEFUN ("process-stderr-buffer", Fprocess_stderr_buffer, 1, 1, 0, /* | |
| 1263 Return the stderr buffer PROCESS is associated with. | |
| 2297 | 1264 Output from the stderr of PROCESS is inserted in this buffer unless PROCESS |
| 1265 has a stderr filter. Set the buffer with `set-process-stderr-buffer'. | |
| 853 | 1266 */ |
| 1267 (process)) | |
| 1268 { | |
| 1269 CHECK_PROCESS (process); | |
| 1270 if (!XPROCESS (process)->separate_stderr) | |
| 1271 invalid_change ("stdout and stderr not separate", process); | |
| 1272 return XPROCESS (process)->stderr_buffer; | |
| 1273 } | |
| 1274 | |
| 428 | 1275 DEFUN ("process-mark", Fprocess_mark, 1, 1, 0, /* |
| 1276 Return the marker for the end of the last output from PROCESS. | |
| 1277 */ | |
| 444 | 1278 (process)) |
| 428 | 1279 { |
| 444 | 1280 CHECK_PROCESS (process); |
| 1281 return XPROCESS (process)->mark; | |
| 428 | 1282 } |
| 1283 | |
| 853 | 1284 DEFUN ("process-stderr-mark", Fprocess_stderr_mark, 1, 1, 0, /* |
| 1285 Return the marker for the end of the last stderr output from PROCESS. | |
| 1286 */ | |
| 1287 (process)) | |
| 1288 { | |
| 1289 CHECK_PROCESS (process); | |
| 1290 if (!XPROCESS (process)->separate_stderr) | |
| 1291 invalid_operation ("stdout and stderr not separate", process); | |
| 1292 return XPROCESS (process)->stderr_mark; | |
| 1293 } | |
| 1294 | |
| 428 | 1295 void |
| 853 | 1296 set_process_filter (Lisp_Object process, Lisp_Object filter, |
| 1297 int filter_does_read, int set_stderr) | |
| 428 | 1298 { |
| 444 | 1299 CHECK_PROCESS (process); |
| 853 | 1300 if (set_stderr && !XPROCESS (process)->separate_stderr) |
| 1301 invalid_change ("stdout and stderr not separate", process); | |
| 863 | 1302 if (PROCESS_READABLE_P (XPROCESS (process))) |
| 853 | 1303 { |
| 1304 if (EQ (filter, Qt)) | |
| 1305 event_stream_unselect_process (XPROCESS (process), !set_stderr, | |
| 1306 set_stderr); | |
| 1307 else | |
| 1308 event_stream_select_process (XPROCESS (process), !set_stderr, | |
| 1309 set_stderr); | |
| 1310 } | |
| 428 | 1311 |
| 853 | 1312 if (set_stderr) |
| 1313 XPROCESS (process)->stderr_filter = filter; | |
| 1314 else | |
| 1315 XPROCESS (process)->filter = filter; | |
| 444 | 1316 XPROCESS (process)->filter_does_read = filter_does_read; |
| 428 | 1317 } |
| 1318 | |
| 1319 DEFUN ("set-process-filter", Fset_process_filter, 2, 2, 0, /* | |
| 1320 Give PROCESS the filter function FILTER; nil means no filter. | |
| 853 | 1321 t means stop accepting output from the process. (If process was created |
| 854 | 1322 with |
| 853 | 1323 When a process has a filter, each time it does output |
| 1324 the entire string of output is passed to the filter. | |
| 1325 The filter gets two arguments: the process and the string of output. | |
| 1326 If the process has a filter, its buffer is not used for output. | |
| 1327 */ | |
| 1328 (process, filter)) | |
| 1329 { | |
| 1330 set_process_filter (process, filter, 0, 0); | |
| 1331 return filter; | |
| 1332 } | |
| 1333 | |
| 1334 DEFUN ("set-process-stderr-filter", Fset_process_stderr_filter, 2, 2, 0, /* | |
| 1335 Give PROCESS the stderr filter function FILTER; nil means no filter. | |
| 428 | 1336 t means stop accepting output from the process. |
| 1337 When a process has a filter, each time it does output | |
| 1338 the entire string of output is passed to the filter. | |
| 1339 The filter gets two arguments: the process and the string of output. | |
| 1340 If the process has a filter, its buffer is not used for output. | |
| 1341 */ | |
| 444 | 1342 (process, filter)) |
| 428 | 1343 { |
| 853 | 1344 set_process_filter (process, filter, 0, 1); |
| 428 | 1345 return filter; |
| 1346 } | |
| 1347 | |
| 1348 DEFUN ("process-filter", Fprocess_filter, 1, 1, 0, /* | |
| 1349 Return the filter function of PROCESS; nil if none. | |
| 1350 See `set-process-filter' for more info on filter functions. | |
| 1351 */ | |
| 444 | 1352 (process)) |
| 428 | 1353 { |
| 444 | 1354 CHECK_PROCESS (process); |
| 1355 return XPROCESS (process)->filter; | |
| 428 | 1356 } |
| 1357 | |
| 853 | 1358 DEFUN ("process-stderr-filter", Fprocess_stderr_filter, 1, 1, 0, /* |
| 1359 Return the filter function of PROCESS; nil if none. | |
| 1360 See `set-process-stderr-filter' for more info on filter functions. | |
| 1361 */ | |
| 1362 (process)) | |
| 1363 { | |
| 1364 CHECK_PROCESS (process); | |
| 1365 if (!XPROCESS (process)->separate_stderr) | |
| 1366 invalid_operation ("stdout and stderr not separate", process); | |
| 1367 return XPROCESS (process)->stderr_filter; | |
| 1368 } | |
| 1369 | |
| 442 | 1370 DEFUN ("process-send-region", Fprocess_send_region, 3, 4, 0, /* |
| 1371 Send current contents of the region between START and END as input to PROCESS. | |
| 444 | 1372 PROCESS may be a process or the name of a process, or a buffer or the |
| 1373 name of a buffer, in which case the buffer's process is used. If it | |
| 1374 is nil, the current buffer's process is used. | |
| 442 | 1375 BUFFER specifies the buffer to look in; if nil, the current buffer is used. |
| 853 | 1376 If the region is more than 100 or so characters long, it may be sent in |
| 1377 several chunks. This may happen even for shorter regions. Output | |
| 444 | 1378 from processes can arrive in between chunks. |
| 428 | 1379 */ |
| 442 | 1380 (process, start, end, buffer)) |
| 428 | 1381 { |
| 1382 /* This function can GC */ | |
| 665 | 1383 Charbpos bstart, bend; |
| 442 | 1384 struct buffer *buf = decode_buffer (buffer, 0); |
| 428 | 1385 |
| 793 | 1386 buffer = wrap_buffer (buf); |
| 444 | 1387 process = get_process (process); |
| 1388 get_buffer_range_char (buf, start, end, &bstart, &bend, 0); | |
| 442 | 1389 |
| 444 | 1390 send_process (process, buffer, 0, bstart, bend - bstart); |
| 428 | 1391 return Qnil; |
| 1392 } | |
| 1393 | |
| 1394 DEFUN ("process-send-string", Fprocess_send_string, 2, 4, 0, /* | |
| 1395 Send PROCESS the contents of STRING as input. | |
| 444 | 1396 PROCESS may be a process or the name of a process, or a buffer or the |
| 1397 name of a buffer, in which case the buffer's process is used. If it | |
| 1398 is nil, the current buffer's process is used. | |
| 1399 Optional arguments START and END specify part of STRING; see `substring'. | |
| 1400 If STRING is more than 100 or so characters long, it may be sent in | |
| 1401 several chunks. This may happen even for shorter strings. Output | |
| 1402 from processes can arrive in between chunks. | |
| 428 | 1403 */ |
| 444 | 1404 (process, string, start, end)) |
| 428 | 1405 { |
| 1406 /* This function can GC */ | |
| 444 | 1407 Bytecount bstart, bend; |
| 428 | 1408 |
| 444 | 1409 process = get_process (process); |
| 428 | 1410 CHECK_STRING (string); |
| 444 | 1411 get_string_range_byte (string, start, end, &bstart, &bend, |
| 428 | 1412 GB_HISTORICAL_STRING_BEHAVIOR); |
| 1413 | |
| 444 | 1414 send_process (process, string, 0, bstart, bend - bstart); |
| 428 | 1415 return Qnil; |
| 1416 } | |
| 1417 | |
| 1418 | |
| 1419 DEFUN ("process-input-coding-system", Fprocess_input_coding_system, 1, 1, 0, /* | |
| 1420 Return PROCESS's input coding system. | |
| 1421 */ | |
| 1422 (process)) | |
| 1423 { | |
| 1424 process = get_process (process); | |
| 863 | 1425 CHECK_READABLE_PROCESS (process); |
| 771 | 1426 return (coding_stream_detected_coding_system |
| 1427 (XLSTREAM (XPROCESS (process)->coding_instream))); | |
| 428 | 1428 } |
| 1429 | |
| 1430 DEFUN ("process-output-coding-system", Fprocess_output_coding_system, 1, 1, 0, /* | |
| 1431 Return PROCESS's output coding system. | |
| 1432 */ | |
| 1433 (process)) | |
| 1434 { | |
| 1435 process = get_process (process); | |
| 440 | 1436 CHECK_LIVE_PROCESS (process); |
| 771 | 1437 return (coding_stream_coding_system |
| 1438 (XLSTREAM (XPROCESS (process)->coding_outstream))); | |
| 428 | 1439 } |
| 1440 | |
| 1441 DEFUN ("process-coding-system", Fprocess_coding_system, 1, 1, 0, /* | |
| 1442 Return a pair of coding-system for decoding and encoding of PROCESS. | |
| 1443 */ | |
| 1444 (process)) | |
| 1445 { | |
| 1446 process = get_process (process); | |
| 863 | 1447 CHECK_READABLE_PROCESS (process); |
| 771 | 1448 return Fcons (coding_stream_detected_coding_system |
| 428 | 1449 (XLSTREAM (XPROCESS (process)->coding_instream)), |
| 771 | 1450 coding_stream_coding_system |
| 428 | 1451 (XLSTREAM (XPROCESS (process)->coding_outstream))); |
| 1452 } | |
| 1453 | |
| 1454 DEFUN ("set-process-input-coding-system", Fset_process_input_coding_system, | |
| 1455 2, 2, 0, /* | |
| 1456 Set PROCESS's input coding system to CODESYS. | |
| 771 | 1457 This is used for reading data from PROCESS. |
| 428 | 1458 */ |
| 1459 (process, codesys)) | |
| 1460 { | |
| 771 | 1461 codesys = get_coding_system_for_text_file (codesys, 1); |
| 428 | 1462 process = get_process (process); |
| 863 | 1463 CHECK_READABLE_PROCESS (process); |
| 440 | 1464 |
| 771 | 1465 set_coding_stream_coding_system |
| 428 | 1466 (XLSTREAM (XPROCESS (process)->coding_instream), codesys); |
| 1467 return Qnil; | |
| 1468 } | |
| 1469 | |
| 1470 DEFUN ("set-process-output-coding-system", Fset_process_output_coding_system, | |
| 1471 2, 2, 0, /* | |
| 1472 Set PROCESS's output coding system to CODESYS. | |
| 771 | 1473 This is used for writing data to PROCESS. |
| 428 | 1474 */ |
| 1475 (process, codesys)) | |
| 1476 { | |
| 771 | 1477 codesys = get_coding_system_for_text_file (codesys, 0); |
| 428 | 1478 process = get_process (process); |
| 440 | 1479 CHECK_LIVE_PROCESS (process); |
| 1480 | |
| 771 | 1481 set_coding_stream_coding_system |
| 428 | 1482 (XLSTREAM (XPROCESS (process)->coding_outstream), codesys); |
| 1483 return Qnil; | |
| 1484 } | |
| 1485 | |
| 1486 DEFUN ("set-process-coding-system", Fset_process_coding_system, | |
| 1487 1, 3, 0, /* | |
| 1488 Set coding-systems of PROCESS to DECODING and ENCODING. | |
| 440 | 1489 DECODING will be used to decode subprocess output and ENCODING to |
| 1490 encode subprocess input. | |
| 428 | 1491 */ |
| 1492 (process, decoding, encoding)) | |
| 1493 { | |
| 1494 if (!NILP (decoding)) | |
| 1495 Fset_process_input_coding_system (process, decoding); | |
| 1496 | |
| 1497 if (!NILP (encoding)) | |
| 1498 Fset_process_output_coding_system (process, encoding); | |
| 1499 | |
| 1500 return Qnil; | |
| 1501 } | |
| 1502 | |
| 1503 | |
| 1504 /************************************************************************/ | |
| 1505 /* process status */ | |
| 1506 /************************************************************************/ | |
| 1507 | |
| 1508 static Lisp_Object | |
| 1509 exec_sentinel_unwind (Lisp_Object datum) | |
| 1510 { | |
| 853 | 1511 XPROCESS (XCAR (datum))->sentinel = XCDR (datum); |
| 1512 free_cons (datum); | |
| 428 | 1513 return Qnil; |
| 1514 } | |
| 1515 | |
| 1516 static void | |
| 444 | 1517 exec_sentinel (Lisp_Object process, Lisp_Object reason) |
| 428 | 1518 { |
| 1519 /* This function can GC */ | |
| 1520 int speccount = specpdl_depth (); | |
| 444 | 1521 Lisp_Process *p = XPROCESS (process); |
| 428 | 1522 Lisp_Object sentinel = p->sentinel; |
| 1523 | |
| 1524 if (NILP (sentinel)) | |
| 1525 return; | |
| 1526 | |
| 1527 /* Some weird FSFmacs crap here with | |
| 1528 Vdeactivate_mark and current_buffer->keymap */ | |
| 1529 | |
| 853 | 1530 /* Some FSF junk with running_asynch_code, to preserve the match |
| 1531 data. Not necessary because we don't call process filters | |
| 1532 asynchronously (i.e. from within QUIT). */ | |
| 1533 | |
| 428 | 1534 /* Zilch the sentinel while it's running, to avoid recursive invocations; |
| 853 | 1535 assure that it gets restored no matter how the sentinel exits. |
| 1536 | |
| 1537 (#### Why is this necessary? Probably another relic of asynchronous | |
| 1538 calling of process filters/sentinels.) */ | |
| 428 | 1539 p->sentinel = Qnil; |
| 853 | 1540 record_unwind_protect (exec_sentinel_unwind, |
| 1541 noseeum_cons (process, sentinel)); | |
| 1542 /* Don't catch errors here; we're not in any critical code. */ | |
| 1543 call2 (sentinel, process, reason); | |
| 771 | 1544 unbind_to (speccount); |
| 428 | 1545 } |
| 1546 | |
| 1547 DEFUN ("set-process-sentinel", Fset_process_sentinel, 2, 2, 0, /* | |
| 1548 Give PROCESS the sentinel SENTINEL; nil for none. | |
| 1549 The sentinel is called as a function when the process changes state. | |
| 1550 It gets two arguments: the process, and a string describing the change. | |
| 1551 */ | |
| 444 | 1552 (process, sentinel)) |
| 428 | 1553 { |
| 444 | 1554 CHECK_PROCESS (process); |
| 1555 XPROCESS (process)->sentinel = sentinel; | |
| 428 | 1556 return sentinel; |
| 1557 } | |
| 1558 | |
| 1559 DEFUN ("process-sentinel", Fprocess_sentinel, 1, 1, 0, /* | |
| 1560 Return the sentinel of PROCESS; nil if none. | |
| 1561 See `set-process-sentinel' for more info on sentinels. | |
| 1562 */ | |
| 444 | 1563 (process)) |
| 428 | 1564 { |
| 444 | 1565 CHECK_PROCESS (process); |
| 1566 return XPROCESS (process)->sentinel; | |
| 428 | 1567 } |
| 1568 | |
| 1569 | |
| 442 | 1570 const char * |
| 428 | 1571 signal_name (int signum) |
| 1572 { | |
| 1573 if (signum >= 0 && signum < NSIG) | |
| 442 | 1574 return (const char *) sys_siglist[signum]; |
| 428 | 1575 |
| 442 | 1576 return (const char *) GETTEXT ("unknown signal"); |
| 428 | 1577 } |
| 1578 | |
| 1579 void | |
| 1580 update_process_status (Lisp_Object p, | |
| 1581 Lisp_Object status_symbol, | |
| 1582 int exit_code, | |
| 1583 int core_dumped) | |
| 1584 { | |
| 1585 XPROCESS (p)->tick++; | |
| 1586 process_tick++; | |
| 1587 XPROCESS (p)->status_symbol = status_symbol; | |
| 1588 XPROCESS (p)->exit_code = exit_code; | |
| 1589 XPROCESS (p)->core_dumped = core_dumped; | |
| 1590 } | |
| 1591 | |
| 1592 /* Return a string describing a process status list. */ | |
| 1593 | |
| 1594 static Lisp_Object | |
| 440 | 1595 status_message (Lisp_Process *p) |
| 428 | 1596 { |
| 1597 Lisp_Object symbol = p->status_symbol; | |
| 1598 int code = p->exit_code; | |
| 1599 int coredump = p->core_dumped; | |
| 1600 Lisp_Object string, string2; | |
| 1601 | |
| 1602 if (EQ (symbol, Qsignal) || EQ (symbol, Qstop)) | |
| 1603 { | |
|
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1604 string = build_cistring (signal_name (code)); |
| 428 | 1605 if (coredump) |
| 771 | 1606 string2 = build_msg_string (" (core dumped)\n"); |
| 428 | 1607 else |
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1608 string2 = build_ascstring ("\n"); |
| 793 | 1609 set_string_char (string, 0, |
| 867 | 1610 DOWNCASE (0, string_ichar (string, 0))); |
| 428 | 1611 return concat2 (string, string2); |
| 1612 } | |
| 1613 else if (EQ (symbol, Qexit)) | |
| 1614 { | |
| 1615 if (code == 0) | |
| 771 | 1616 return build_msg_string ("finished\n"); |
| 428 | 1617 string = Fnumber_to_string (make_int (code)); |
| 1618 if (coredump) | |
| 771 | 1619 string2 = build_msg_string (" (core dumped)\n"); |
| 428 | 1620 else |
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1621 string2 = build_ascstring ("\n"); |
| 771 | 1622 return concat2 (build_msg_string ("exited abnormally with code "), |
| 428 | 1623 concat2 (string, string2)); |
| 1624 } | |
| 1625 else | |
| 1626 return Fcopy_sequence (Fsymbol_name (symbol)); | |
| 1627 } | |
| 1628 | |
| 1629 /* Tell status_notify() to check for terminated processes. We do this | |
| 1630 because on some systems we sometimes miss SIGCHLD calls. (Not sure | |
| 853 | 1631 why.) This is also used under Mswin. */ |
| 428 | 1632 |
| 1633 void | |
| 1634 kick_status_notify (void) | |
| 1635 { | |
| 1636 process_tick++; | |
| 1637 } | |
| 1638 | |
| 1639 | |
| 1640 /* Report all recent events of a change in process status | |
| 1641 (either run the sentinel or output a message). | |
| 1642 This is done while Emacs is waiting for keyboard input. */ | |
| 1643 | |
| 1644 void | |
| 1645 status_notify (void) | |
| 1646 { | |
| 1647 /* This function can GC */ | |
| 1648 Lisp_Object tail = Qnil; | |
| 1649 Lisp_Object symbol = Qnil; | |
| 1650 Lisp_Object msg = Qnil; | |
| 1651 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 1652 /* process_tick is volatile, so we have to remember it now. | |
| 444 | 1653 Otherwise, we get a race condition if SIGCHLD happens during |
| 428 | 1654 this function. |
| 1655 | |
| 1656 (Actually, this is not the case anymore. The code to | |
| 1657 update the process structures has been moved out of the | |
| 1658 SIGCHLD handler. But for the moment I'm leaving this | |
| 1659 stuff in -- it can't hurt.) */ | |
| 1660 int temp_process_tick; | |
| 1661 | |
| 1662 MAYBE_PROCMETH (reap_exited_processes, ()); | |
| 1663 | |
| 1664 temp_process_tick = process_tick; | |
| 1665 | |
| 1666 if (update_tick == temp_process_tick) | |
| 1667 return; | |
| 1668 | |
| 1669 /* We need to gcpro tail; if read_process_output calls a filter | |
| 1670 which deletes a process and removes the cons to which tail points | |
| 1671 from Vprocess_alist, and then causes a GC, tail is an unprotected | |
| 1672 reference. */ | |
| 1673 GCPRO3 (tail, symbol, msg); | |
| 1674 | |
| 1675 for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail)) | |
| 1676 { | |
| 444 | 1677 Lisp_Object process = XCAR (tail); |
| 1678 Lisp_Process *p = XPROCESS (process); | |
| 428 | 1679 /* p->tick is also volatile. Same thing as above applies. */ |
| 1680 int this_process_tick; | |
| 1681 | |
| 1682 /* #### extra check for terminated processes, in case a SIGCHLD | |
| 1683 got missed (this seems to happen sometimes, I'm not sure why). | |
| 1684 */ | |
| 1685 if (INTP (p->pid)) | |
| 1686 MAYBE_PROCMETH (update_status_if_terminated, (p)); | |
| 1687 | |
| 1688 this_process_tick = p->tick; | |
| 1689 if (this_process_tick != p->update_tick) | |
| 1690 { | |
| 1691 p->update_tick = this_process_tick; | |
| 1692 | |
| 1693 /* If process is still active, read any output that remains. */ | |
| 1694 while (!EQ (p->filter, Qt) | |
| 853 | 1695 && read_process_output (process, 0) > 0) |
| 1696 ; | |
| 1697 while (p->separate_stderr && !EQ (p->stderr_filter, Qt) | |
| 1698 && read_process_output (process, 1) > 0) | |
| 428 | 1699 ; |
| 1700 | |
| 1701 /* Get the text to use for the message. */ | |
| 1702 msg = status_message (p); | |
| 1703 | |
| 1704 /* If process is terminated, deactivate it or delete it. */ | |
| 1705 symbol = p->status_symbol; | |
| 1706 | |
| 1707 if (EQ (symbol, Qsignal) | |
| 1708 || EQ (symbol, Qexit)) | |
| 1709 { | |
| 1710 if (delete_exited_processes) | |
| 444 | 1711 remove_process (process); |
| 428 | 1712 else |
| 444 | 1713 deactivate_process (process); |
| 428 | 1714 } |
| 1715 | |
| 1716 /* Now output the message suitably. */ | |
| 1717 if (!NILP (p->sentinel)) | |
| 444 | 1718 exec_sentinel (process, msg); |
| 428 | 1719 /* Don't bother with a message in the buffer |
| 1720 when a process becomes runnable. */ | |
| 844 | 1721 else if (!EQ (symbol, Qrun) && !NILP (p->buffer) && |
| 1722 /* Avoid error if buffer is deleted | |
| 1723 (probably that's why the process is dead, too) */ | |
| 1724 BUFFER_LIVE_P (XBUFFER (p->buffer))) | |
| 428 | 1725 { |
| 844 | 1726 struct gcpro ngcpro1; |
| 853 | 1727 int spec = process_setup_for_insertion (process, 0); |
| 428 | 1728 |
| 844 | 1729 NGCPRO1 (process); |
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1730 buffer_insert_ascstring (current_buffer, "\nProcess "); |
| 428 | 1731 Finsert (1, &p->name); |
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1732 buffer_insert_ascstring (current_buffer, " "); |
| 428 | 1733 Finsert (1, &msg); |
| 1734 Fset_marker (p->mark, make_int (BUF_PT (current_buffer)), | |
| 1735 p->buffer); | |
| 1736 | |
| 844 | 1737 unbind_to (spec); |
| 428 | 1738 NUNGCPRO; |
| 1739 } | |
| 1740 } | |
| 1741 } /* end for */ | |
| 1742 | |
| 1743 /* in case buffers use %s in modeline-format */ | |
| 1744 MARK_MODELINE_CHANGED; | |
| 1745 redisplay (); | |
| 1746 | |
| 1747 update_tick = temp_process_tick; | |
| 1748 | |
| 1749 UNGCPRO; | |
| 1750 } | |
| 1751 | |
| 1752 DEFUN ("process-status", Fprocess_status, 1, 1, 0, /* | |
| 1753 Return the status of PROCESS. | |
| 1754 This is a symbol, one of these: | |
| 1755 | |
| 1756 run -- for a process that is running. | |
| 1757 stop -- for a process stopped but continuable. | |
| 1758 exit -- for a process that has exited. | |
| 1759 signal -- for a process that has got a fatal signal. | |
| 1760 open -- for a network stream connection that is open. | |
| 1761 closed -- for a network stream connection that is closed. | |
| 1762 nil -- if arg is a process name and no such process exists. | |
| 1763 | |
| 1764 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 1765 nil, indicating the current buffer's process. | |
| 1766 */ | |
| 444 | 1767 (process)) |
| 428 | 1768 { |
| 1769 Lisp_Object status_symbol; | |
| 1770 | |
| 444 | 1771 if (STRINGP (process)) |
| 1772 process = Fget_process (process); | |
| 428 | 1773 else |
| 444 | 1774 process = get_process (process); |
| 428 | 1775 |
| 444 | 1776 if (NILP (process)) |
| 428 | 1777 return Qnil; |
| 1778 | |
| 444 | 1779 status_symbol = XPROCESS (process)->status_symbol; |
| 1780 if (network_connection_p (process)) | |
| 428 | 1781 { |
| 1782 if (EQ (status_symbol, Qrun)) | |
| 1783 status_symbol = Qopen; | |
| 1784 else if (EQ (status_symbol, Qexit)) | |
| 1785 status_symbol = Qclosed; | |
| 1786 } | |
| 1787 return status_symbol; | |
| 1788 } | |
| 1789 | |
| 1790 DEFUN ("process-exit-status", Fprocess_exit_status, 1, 1, 0, /* | |
| 1791 Return the exit status of PROCESS or the signal number that killed it. | |
| 1792 If PROCESS has not yet exited or died, return 0. | |
| 1793 */ | |
| 444 | 1794 (process)) |
| 428 | 1795 { |
| 444 | 1796 CHECK_PROCESS (process); |
| 1797 return make_int (XPROCESS (process)->exit_code); | |
| 428 | 1798 } |
| 1799 | |
| 1800 | |
| 1801 | |
| 442 | 1802 static int |
| 1803 decode_signal (Lisp_Object signal_) | |
| 428 | 1804 { |
| 442 | 1805 if (INTP (signal_)) |
| 1806 return XINT (signal_); | |
| 428 | 1807 else |
| 1808 { | |
| 867 | 1809 Ibyte *name; |
| 428 | 1810 |
| 442 | 1811 CHECK_SYMBOL (signal_); |
| 793 | 1812 name = XSTRING_DATA (XSYMBOL (signal_)->name); |
| 428 | 1813 |
| 793 | 1814 #define handle_signal(sym) do { \ |
| 2367 | 1815 if (!qxestrcmp_ascii ( name, #sym)) \ |
| 793 | 1816 return sym; \ |
| 442 | 1817 } while (0) |
| 428 | 1818 |
| 1819 handle_signal (SIGINT); /* ANSI */ | |
| 1820 handle_signal (SIGILL); /* ANSI */ | |
| 1821 handle_signal (SIGABRT); /* ANSI */ | |
| 1822 handle_signal (SIGFPE); /* ANSI */ | |
| 1823 handle_signal (SIGSEGV); /* ANSI */ | |
| 1824 handle_signal (SIGTERM); /* ANSI */ | |
| 1825 | |
| 1826 #ifdef SIGHUP | |
| 1827 handle_signal (SIGHUP); /* POSIX */ | |
| 1828 #endif | |
| 1829 #ifdef SIGQUIT | |
| 1830 handle_signal (SIGQUIT); /* POSIX */ | |
| 1831 #endif | |
| 1832 #ifdef SIGTRAP | |
| 1833 handle_signal (SIGTRAP); /* POSIX */ | |
| 1834 #endif | |
| 1835 #ifdef SIGKILL | |
| 1836 handle_signal (SIGKILL); /* POSIX */ | |
| 1837 #endif | |
| 1838 #ifdef SIGUSR1 | |
| 1839 handle_signal (SIGUSR1); /* POSIX */ | |
| 1840 #endif | |
| 1841 #ifdef SIGUSR2 | |
| 1842 handle_signal (SIGUSR2); /* POSIX */ | |
| 1843 #endif | |
| 1844 #ifdef SIGPIPE | |
| 1845 handle_signal (SIGPIPE); /* POSIX */ | |
| 1846 #endif | |
| 1847 #ifdef SIGALRM | |
| 1848 handle_signal (SIGALRM); /* POSIX */ | |
| 1849 #endif | |
| 1850 #ifdef SIGCHLD | |
| 1851 handle_signal (SIGCHLD); /* POSIX */ | |
| 1852 #endif | |
| 1853 #ifdef SIGCONT | |
| 1854 handle_signal (SIGCONT); /* POSIX */ | |
| 1855 #endif | |
| 1856 #ifdef SIGSTOP | |
| 1857 handle_signal (SIGSTOP); /* POSIX */ | |
| 1858 #endif | |
| 1859 #ifdef SIGTSTP | |
| 1860 handle_signal (SIGTSTP); /* POSIX */ | |
| 1861 #endif | |
| 1862 #ifdef SIGTTIN | |
| 1863 handle_signal (SIGTTIN); /* POSIX */ | |
| 1864 #endif | |
| 1865 #ifdef SIGTTOU | |
| 1866 handle_signal (SIGTTOU); /* POSIX */ | |
| 1867 #endif | |
| 1868 | |
| 1869 #ifdef SIGBUS | |
| 1870 handle_signal (SIGBUS); /* XPG5 */ | |
| 1871 #endif | |
| 1872 #ifdef SIGPOLL | |
| 1873 handle_signal (SIGPOLL); /* XPG5 */ | |
| 1874 #endif | |
| 1875 #ifdef SIGPROF | |
| 1876 handle_signal (SIGPROF); /* XPG5 */ | |
| 1877 #endif | |
| 1878 #ifdef SIGSYS | |
| 1879 handle_signal (SIGSYS); /* XPG5 */ | |
| 1880 #endif | |
| 1881 #ifdef SIGURG | |
| 1882 handle_signal (SIGURG); /* XPG5 */ | |
| 1883 #endif | |
| 1884 #ifdef SIGXCPU | |
| 1885 handle_signal (SIGXCPU); /* XPG5 */ | |
| 1886 #endif | |
| 1887 #ifdef SIGXFSZ | |
| 1888 handle_signal (SIGXFSZ); /* XPG5 */ | |
| 1889 #endif | |
| 1890 #ifdef SIGVTALRM | |
| 1891 handle_signal (SIGVTALRM); /* XPG5 */ | |
| 1892 #endif | |
| 1893 | |
| 1894 #ifdef SIGIO | |
| 1895 handle_signal (SIGIO); /* BSD 4.2 */ | |
| 1896 #endif | |
| 1897 #ifdef SIGWINCH | |
| 1898 handle_signal (SIGWINCH); /* BSD 4.3 */ | |
| 1899 #endif | |
| 1900 | |
| 1901 #ifdef SIGEMT | |
| 1902 handle_signal (SIGEMT); | |
| 1903 #endif | |
| 1904 #ifdef SIGINFO | |
| 1905 handle_signal (SIGINFO); | |
| 1906 #endif | |
| 1907 #ifdef SIGHWE | |
| 1908 handle_signal (SIGHWE); | |
| 1909 #endif | |
| 1910 #ifdef SIGPRE | |
| 1911 handle_signal (SIGPRE); | |
| 1912 #endif | |
| 1913 #ifdef SIGUME | |
| 1914 handle_signal (SIGUME); | |
| 1915 #endif | |
| 1916 #ifdef SIGDLK | |
| 1917 handle_signal (SIGDLK); | |
| 1918 #endif | |
| 1919 #ifdef SIGCPULIM | |
| 1920 handle_signal (SIGCPULIM); | |
| 1921 #endif | |
| 1922 #ifdef SIGIOT | |
| 1923 handle_signal (SIGIOT); | |
| 1924 #endif | |
| 1925 #ifdef SIGLOST | |
| 1926 handle_signal (SIGLOST); | |
| 1927 #endif | |
| 1928 #ifdef SIGSTKFLT | |
| 1929 handle_signal (SIGSTKFLT); | |
| 1930 #endif | |
| 1931 #ifdef SIGUNUSED | |
| 1932 handle_signal (SIGUNUSED); | |
| 1933 #endif | |
| 1934 #ifdef SIGDANGER | |
| 1935 handle_signal (SIGDANGER); /* AIX */ | |
| 1936 #endif | |
| 1937 #ifdef SIGMSG | |
| 1938 handle_signal (SIGMSG); | |
| 1939 #endif | |
| 1940 #ifdef SIGSOUND | |
| 1941 handle_signal (SIGSOUND); | |
| 1942 #endif | |
| 1943 #ifdef SIGRETRACT | |
| 1944 handle_signal (SIGRETRACT); | |
| 1945 #endif | |
| 1946 #ifdef SIGGRANT | |
| 1947 handle_signal (SIGGRANT); | |
| 1948 #endif | |
| 1949 #ifdef SIGPWR | |
| 1950 handle_signal (SIGPWR); | |
| 1951 #endif | |
| 1952 | |
| 1953 #undef handle_signal | |
| 1954 | |
| 563 | 1955 invalid_constant ("Undefined signal name", signal_); |
| 1204 | 1956 RETURN_NOT_REACHED (0); |
| 442 | 1957 } |
| 1958 } | |
| 1959 | |
| 1960 /* Send signal number SIGNO to PROCESS. | |
| 1961 CURRENT-GROUP non-nil means send signal to the current | |
| 1962 foreground process group of the process's controlling terminal rather | |
| 1963 than to the process's own process group. | |
| 1964 This is used for various commands in shell mode. | |
| 1965 If NOMSG is zero, insert signal-announcements into process's buffers | |
| 1966 right away. | |
| 1967 | |
| 1968 If we can, we try to signal PROCESS by sending control characters | |
| 1969 down the pty. This allows us to signal inferiors who have changed | |
| 1970 their uid, for which kill() would return an EPERM error, or to | |
| 1971 processes running on another computer through a remote login. */ | |
| 1972 | |
| 1973 static void | |
| 1974 process_send_signal (Lisp_Object process, int signo, | |
| 1975 int current_group, int nomsg) | |
| 1976 { | |
| 1977 /* This function can GC */ | |
| 444 | 1978 process = get_process (process); |
| 442 | 1979 |
| 444 | 1980 if (network_connection_p (process)) |
| 563 | 1981 invalid_operation ("Network connection is not a subprocess", process); |
| 444 | 1982 CHECK_LIVE_PROCESS (process); |
| 442 | 1983 |
| 444 | 1984 MAYBE_PROCMETH (kill_child_process, (process, signo, current_group, nomsg)); |
| 442 | 1985 } |
| 1986 | |
| 1987 DEFUN ("process-send-signal", Fprocess_send_signal, 1, 3, 0, /* | |
| 1988 Send signal SIGNAL to process PROCESS. | |
| 1989 SIGNAL may be an integer, or a symbol naming a signal, like `SIGSEGV'. | |
| 1990 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 1991 nil, indicating the current buffer's process. | |
| 1992 Third arg CURRENT-GROUP non-nil means send signal to the current | |
| 1993 foreground process group of the process's controlling terminal rather | |
| 1994 than to the process's own process group. | |
| 1995 If the process is a shell that supports job control, this means | |
| 1996 send the signal to the current subjob rather than the shell. | |
| 1997 */ | |
| 1998 (signal_, process, current_group)) | |
| 1999 { | |
| 2000 /* This function can GC */ | |
| 2001 process_send_signal (process, decode_signal (signal_), | |
| 2002 !NILP (current_group), 0); | |
| 2003 return process; | |
| 2004 } | |
| 2005 | |
| 2006 DEFUN ("interrupt-process", Finterrupt_process, 0, 2, 0, /* | |
| 2007 Interrupt process PROCESS. | |
| 2008 See function `process-send-signal' for more details on usage. | |
| 2009 */ | |
| 2010 (process, current_group)) | |
| 2011 { | |
| 2012 /* This function can GC */ | |
| 2013 process_send_signal (process, SIGINT, !NILP (current_group), 0); | |
| 2014 return process; | |
| 2015 } | |
| 2016 | |
| 2017 DEFUN ("kill-process", Fkill_process, 0, 2, 0, /* | |
| 2018 Kill process PROCESS. | |
| 2019 See function `process-send-signal' for more details on usage. | |
| 2020 */ | |
| 2021 (process, current_group)) | |
| 2022 { | |
| 2023 /* This function can GC */ | |
| 2024 #ifdef SIGKILL | |
| 2025 process_send_signal (process, SIGKILL, !NILP (current_group), 0); | |
| 2026 #else | |
| 563 | 2027 signal_error (Qunimplemented, |
| 2028 "kill-process: Not supported on this system", | |
| 2029 Qunbound); | |
| 442 | 2030 #endif |
| 2031 return process; | |
| 2032 } | |
| 2033 | |
| 2034 DEFUN ("quit-process", Fquit_process, 0, 2, 0, /* | |
| 2035 Send QUIT signal to process PROCESS. | |
| 2036 See function `process-send-signal' for more details on usage. | |
| 2037 */ | |
| 2038 (process, current_group)) | |
| 2039 { | |
| 2040 /* This function can GC */ | |
| 2041 #ifdef SIGQUIT | |
| 2042 process_send_signal (process, SIGQUIT, !NILP (current_group), 0); | |
| 2043 #else | |
| 563 | 2044 signal_error (Qunimplemented, |
| 2045 "quit-process: Not supported on this system", | |
| 2046 Qunbound); | |
| 442 | 2047 #endif |
| 2048 return process; | |
| 2049 } | |
| 2050 | |
| 2051 DEFUN ("stop-process", Fstop_process, 0, 2, 0, /* | |
| 2052 Stop process PROCESS. | |
| 2053 See function `process-send-signal' for more details on usage. | |
| 2054 */ | |
| 2055 (process, current_group)) | |
| 2056 { | |
| 2057 /* This function can GC */ | |
| 2058 #ifdef SIGTSTP | |
| 2059 process_send_signal (process, SIGTSTP, !NILP (current_group), 0); | |
| 2060 #else | |
| 563 | 2061 signal_error (Qunimplemented, |
| 2062 "stop-process: Not supported on this system", | |
| 2063 Qunbound); | |
| 442 | 2064 #endif |
| 2065 return process; | |
| 2066 } | |
| 2067 | |
| 2068 DEFUN ("continue-process", Fcontinue_process, 0, 2, 0, /* | |
| 2069 Continue process PROCESS. | |
| 2070 See function `process-send-signal' for more details on usage. | |
| 2071 */ | |
| 2072 (process, current_group)) | |
| 2073 { | |
| 2074 /* This function can GC */ | |
| 2075 #ifdef SIGCONT | |
| 2076 process_send_signal (process, SIGCONT, !NILP (current_group), 0); | |
| 2077 #else | |
| 563 | 2078 signal_error (Qunimplemented, |
| 2079 "continue-process: Not supported on this system", | |
| 2080 Qunbound); | |
| 442 | 2081 #endif |
| 2082 return process; | |
| 2083 } | |
| 2084 | |
| 2085 DEFUN ("signal-process", Fsignal_process, 2, 2, | |
| 2086 "nProcess number: \nnSignal code: ", /* | |
| 2087 Send the process with process id PID the signal with code SIGNAL. | |
| 2088 PID must be an integer. The process need not be a child of this Emacs. | |
| 2089 SIGNAL may be an integer, or a symbol naming a signal, like `SIGSEGV'. | |
| 2090 */ | |
| 2091 (pid, signal_)) | |
| 2092 { | |
| 2093 CHECK_INT (pid); | |
| 2094 | |
| 428 | 2095 return make_int (PROCMETH_OR_GIVEN (kill_process_by_pid, |
| 442 | 2096 (XINT (pid), decode_signal (signal_)), |
| 2097 -1)); | |
| 428 | 2098 } |
| 2099 | |
| 2100 DEFUN ("process-send-eof", Fprocess_send_eof, 0, 1, 0, /* | |
| 2101 Make PROCESS see end-of-file in its input. | |
| 2102 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 2103 nil, indicating the current buffer's process. | |
| 2104 If PROCESS is a network connection, or is a process communicating | |
| 2105 through a pipe (as opposed to a pty), then you cannot send any more | |
| 2106 text to PROCESS after you call this function. | |
| 2107 */ | |
| 2108 (process)) | |
| 2109 { | |
| 2110 /* This function can GC */ | |
| 444 | 2111 process = get_process (process); |
| 428 | 2112 |
| 2113 /* Make sure the process is really alive. */ | |
| 444 | 2114 if (! EQ (XPROCESS (process)->status_symbol, Qrun)) |
| 563 | 2115 invalid_operation ("Process not running", process); |
| 428 | 2116 |
| 444 | 2117 if (!MAYBE_INT_PROCMETH (process_send_eof, (process))) |
| 428 | 2118 { |
| 444 | 2119 if (!NILP (DATA_OUTSTREAM (XPROCESS (process)))) |
| 428 | 2120 { |
| 853 | 2121 USID humpty, dumpty; |
| 444 | 2122 Lstream_close (XLSTREAM (DATA_OUTSTREAM (XPROCESS (process)))); |
| 853 | 2123 event_stream_delete_io_streams (Qnil, |
| 2124 XPROCESS (process)->pipe_outstream, | |
| 2125 Qnil, &humpty, &dumpty); | |
| 444 | 2126 XPROCESS (process)->pipe_outstream = Qnil; |
| 2127 XPROCESS (process)->coding_outstream = Qnil; | |
| 428 | 2128 } |
| 2129 } | |
| 2130 | |
| 2131 return process; | |
| 2132 } | |
| 2133 | |
| 2134 | |
| 2135 /************************************************************************/ | |
| 2136 /* deleting a process */ | |
| 2137 /************************************************************************/ | |
| 2138 | |
| 2139 void | |
| 444 | 2140 deactivate_process (Lisp_Object process) |
| 428 | 2141 { |
| 444 | 2142 Lisp_Process *p = XPROCESS (process); |
| 853 | 2143 USID in_usid, err_usid; |
| 428 | 2144 |
| 2145 /* It's possible that we got as far in the process-creation | |
| 2146 process as creating the descriptors but didn't get so | |
| 2147 far as selecting the process for input. In this | |
| 2148 case, p->pid is nil: p->pid is set at the same time that | |
| 2149 the process is selected for input. */ | |
| 2150 /* #### The comment does not look correct. event_stream_unselect_process | |
| 853 | 2151 is guarded by process->*_selected, so this is not a problem. - kkm*/ |
| 428 | 2152 /* Must call this before setting the streams to nil */ |
| 853 | 2153 event_stream_unselect_process (p, 1, 1); |
| 428 | 2154 |
| 2155 if (!NILP (DATA_OUTSTREAM (p))) | |
| 2156 Lstream_close (XLSTREAM (DATA_OUTSTREAM (p))); | |
| 2157 if (!NILP (DATA_INSTREAM (p))) | |
| 2158 Lstream_close (XLSTREAM (DATA_INSTREAM (p))); | |
| 853 | 2159 if (!NILP (DATA_ERRSTREAM (p))) |
| 2160 Lstream_close (XLSTREAM (DATA_ERRSTREAM (p))); | |
| 428 | 2161 |
| 2162 /* Provide minimal implementation for deactivate_process | |
| 2163 if there's no process-specific one */ | |
| 2164 if (HAS_PROCMETH_P (deactivate_process)) | |
| 853 | 2165 PROCMETH (deactivate_process, (p, &in_usid, &err_usid)); |
| 428 | 2166 else |
| 853 | 2167 event_stream_delete_io_streams (p->pipe_instream, |
| 2168 p->pipe_outstream, | |
| 2169 p->pipe_errstream, | |
| 2170 &in_usid, &err_usid); | |
| 428 | 2171 |
| 853 | 2172 if (in_usid != USID_DONTHASH) |
| 2367 | 2173 remhash ((const void *) in_usid, usid_to_process); |
| 853 | 2174 if (err_usid != USID_DONTHASH) |
| 2367 | 2175 remhash ((const void *) err_usid, usid_to_process); |
| 428 | 2176 |
| 2177 p->pipe_instream = Qnil; | |
| 2178 p->pipe_outstream = Qnil; | |
| 853 | 2179 p->pipe_errstream = Qnil; |
| 428 | 2180 p->coding_instream = Qnil; |
| 2181 p->coding_outstream = Qnil; | |
| 853 | 2182 p->coding_errstream = Qnil; |
| 428 | 2183 } |
| 2184 | |
| 2185 static void | |
| 444 | 2186 remove_process (Lisp_Object process) |
| 428 | 2187 { |
| 444 | 2188 Vprocess_list = delq_no_quit (process, Vprocess_list); |
| 428 | 2189 |
| 444 | 2190 deactivate_process (process); |
| 428 | 2191 } |
| 2192 | |
| 2193 DEFUN ("delete-process", Fdelete_process, 1, 1, 0, /* | |
| 2194 Delete PROCESS: kill it and forget about it immediately. | |
| 2195 PROCESS may be a process or the name of one, or a buffer name. | |
| 2196 */ | |
| 444 | 2197 (process)) |
| 428 | 2198 { |
| 2199 /* This function can GC */ | |
| 440 | 2200 Lisp_Process *p; |
| 444 | 2201 process = get_process (process); |
| 2202 p = XPROCESS (process); | |
| 2203 if (network_connection_p (process)) | |
| 428 | 2204 { |
| 2205 p->status_symbol = Qexit; | |
| 2206 p->exit_code = 0; | |
| 2207 p->core_dumped = 0; | |
| 2208 p->tick++; | |
| 2209 process_tick++; | |
| 2210 } | |
| 440 | 2211 else if (PROCESS_LIVE_P (p)) |
| 428 | 2212 { |
| 444 | 2213 Fkill_process (process, Qnil); |
| 428 | 2214 /* Do this now, since remove_process will make sigchld_handler do nothing. */ |
| 2215 p->status_symbol = Qsignal; | |
| 2216 p->exit_code = SIGKILL; | |
| 2217 p->core_dumped = 0; | |
| 2218 p->tick++; | |
| 2219 process_tick++; | |
| 2220 status_notify (); | |
| 2221 } | |
| 444 | 2222 remove_process (process); |
| 428 | 2223 return Qnil; |
| 2224 } | |
| 2225 | |
| 2226 /* Kill all processes associated with `buffer'. | |
| 2227 If `buffer' is nil, kill all processes */ | |
| 2228 | |
| 2229 void | |
| 2230 kill_buffer_processes (Lisp_Object buffer) | |
| 2231 { | |
| 444 | 2232 LIST_LOOP_2 (process, Vprocess_list) |
| 2233 if ((NILP (buffer) || EQ (XPROCESS (process)->buffer, buffer))) | |
| 2234 { | |
| 2235 if (network_connection_p (process)) | |
| 2236 Fdelete_process (process); | |
| 2237 else if (PROCESS_LIVE_P (XPROCESS (process))) | |
| 2238 process_send_signal (process, SIGHUP, 0, 1); | |
| 2239 } | |
| 428 | 2240 } |
| 2241 | |
| 2242 DEFUN ("process-kill-without-query", Fprocess_kill_without_query, 1, 2, 0, /* | |
| 2243 Say no query needed if PROCESS is running when Emacs is exited. | |
| 2244 Optional second argument if non-nil says to require a query. | |
| 2245 Value is t if a query was formerly required. | |
| 2246 */ | |
| 444 | 2247 (process, require_query_p)) |
| 428 | 2248 { |
| 2249 int tem; | |
| 2250 | |
| 444 | 2251 CHECK_PROCESS (process); |
| 2252 tem = XPROCESS (process)->kill_without_query; | |
| 2253 XPROCESS (process)->kill_without_query = NILP (require_query_p); | |
| 428 | 2254 |
| 2255 return tem ? Qnil : Qt; | |
| 2256 } | |
| 2257 | |
| 2258 DEFUN ("process-kill-without-query-p", Fprocess_kill_without_query_p, 1, 1, 0, /* | |
| 444 | 2259 Return t if PROCESS will be killed without query when emacs is exited. |
| 428 | 2260 */ |
| 444 | 2261 (process)) |
| 428 | 2262 { |
| 444 | 2263 CHECK_PROCESS (process); |
| 2264 return XPROCESS (process)->kill_without_query ? Qt : Qnil; | |
| 428 | 2265 } |
| 2266 | |
| 2267 | |
| 2268 #if 0 | |
| 2269 | |
| 826 | 2270 DEFUN ("process-connection", Fprocess_connection, 0, 1, 0, /* |
| 428 | 2271 Return the connection type of `PROCESS'. This can be nil (pipe), |
| 2272 t or pty (pty) or stream (socket connection). | |
| 2273 */ | |
| 2274 (process)) | |
| 2275 { | |
| 2276 return XPROCESS (process)->type; | |
| 2277 } | |
| 2278 | |
| 2279 #endif /* 0 */ | |
| 2280 | |
| 814 | 2281 |
| 2282 static int | |
| 867 | 2283 getenv_internal (const Ibyte *var, |
| 814 | 2284 Bytecount varlen, |
| 867 | 2285 Ibyte **value, |
| 814 | 2286 Bytecount *valuelen) |
| 2287 { | |
| 2288 Lisp_Object scan; | |
| 2289 | |
| 2290 assert (env_initted); | |
| 2291 | |
| 2292 for (scan = Vprocess_environment; CONSP (scan); scan = XCDR (scan)) | |
| 2293 { | |
| 2294 Lisp_Object entry = XCAR (scan); | |
| 2295 | |
| 2296 if (STRINGP (entry) | |
| 2297 && XSTRING_LENGTH (entry) > varlen | |
| 826 | 2298 && string_byte (entry, varlen) == '=' |
| 814 | 2299 #ifdef WIN32_NATIVE |
| 2300 /* NT environment variables are case insensitive. */ | |
| 2301 && ! memicmp (XSTRING_DATA (entry), var, varlen) | |
| 2302 #else /* not WIN32_NATIVE */ | |
| 2303 && ! memcmp (XSTRING_DATA (entry), var, varlen) | |
| 2304 #endif /* not WIN32_NATIVE */ | |
| 2305 ) | |
| 2306 { | |
| 2307 *value = XSTRING_DATA (entry) + (varlen + 1); | |
| 2308 *valuelen = XSTRING_LENGTH (entry) - (varlen + 1); | |
| 2309 return 1; | |
| 2310 } | |
| 2311 } | |
| 2312 | |
| 2313 return 0; | |
| 2314 } | |
| 2315 | |
| 2316 static void | |
| 867 | 2317 putenv_internal (const Ibyte *var, |
| 814 | 2318 Bytecount varlen, |
| 867 | 2319 const Ibyte *value, |
| 814 | 2320 Bytecount valuelen) |
| 2321 { | |
| 2322 Lisp_Object scan; | |
| 2323 | |
| 2324 assert (env_initted); | |
| 2325 | |
| 2326 for (scan = Vprocess_environment; CONSP (scan); scan = XCDR (scan)) | |
| 2327 { | |
| 2328 Lisp_Object entry = XCAR (scan); | |
| 2329 | |
| 2330 if (STRINGP (entry) | |
| 2331 && XSTRING_LENGTH (entry) > varlen | |
| 826 | 2332 && string_byte (entry, varlen) == '=' |
| 814 | 2333 #ifdef WIN32_NATIVE |
| 2334 /* NT environment variables are case insensitive. */ | |
| 2335 && ! memicmp (XSTRING_DATA (entry), var, varlen) | |
| 2336 #else /* not WIN32_NATIVE */ | |
| 2337 && ! memcmp (XSTRING_DATA (entry), var, varlen) | |
| 2338 #endif /* not WIN32_NATIVE */ | |
| 2339 ) | |
| 2340 { | |
| 2341 XCAR (scan) = concat3 (make_string (var, varlen), | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4932
diff
changeset
|
2342 build_ascstring ("="), |
| 814 | 2343 make_string (value, valuelen)); |
| 2344 return; | |
| 2345 } | |
| 2346 } | |
| 2347 | |
| 2348 Vprocess_environment = Fcons (concat3 (make_string (var, varlen), | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4932
diff
changeset
|
2349 build_ascstring ("="), |
| 814 | 2350 make_string (value, valuelen)), |
| 2351 Vprocess_environment); | |
| 2352 } | |
| 2353 | |
| 2354 /* NOTE: | |
| 2355 | |
| 2356 FSF has this as a Lisp function, as follows. Generally moving things | |
| 2357 out of C and into Lisp is a good idea, but in this case the Lisp | |
| 2358 function is used so early in the startup sequence that it would be ugly | |
| 2359 to rearrange the early dumped code to accommodate this. | |
| 854 | 2360 |
| 814 | 2361 (defun getenv (variable) |
| 2362 "Get the value of environment variable VARIABLE. | |
| 2363 VARIABLE should be a string. Value is nil if VARIABLE is undefined in | |
| 2364 the environment. Otherwise, value is a string. | |
| 2365 | |
| 2366 This function consults the variable `process-environment' | |
| 2367 for its value." | |
| 2368 (interactive (list (read-envvar-name "Get environment variable: " t))) | |
| 2369 (let ((value (getenv-internal variable))) | |
| 2370 (when (interactive-p) | |
| 2371 (message "%s" (if value value "Not set"))) | |
| 2372 value)) | |
| 2373 */ | |
| 2374 | |
| 2375 DEFUN ("getenv", Fgetenv, 1, 2, "sEnvironment variable: \np", /* | |
| 2376 Return the value of environment variable VAR, as a string. | |
| 2377 VAR is a string, the name of the variable. | |
| 2378 When invoked interactively, prints the value in the echo area. | |
| 2379 */ | |
| 2380 (var, interactivep)) | |
| 2381 { | |
| 4932 | 2382 Ibyte *value = NULL; |
| 814 | 2383 Bytecount valuelen; |
| 2384 Lisp_Object v = Qnil; | |
| 2385 struct gcpro gcpro1; | |
| 2386 | |
| 2387 CHECK_STRING (var); | |
| 2388 GCPRO1 (v); | |
| 2389 if (getenv_internal (XSTRING_DATA (var), XSTRING_LENGTH (var), | |
| 2390 &value, &valuelen)) | |
| 2391 v = make_string (value, valuelen); | |
| 2392 if (!NILP (interactivep)) | |
| 2393 { | |
| 2394 if (NILP (v)) | |
| 2395 message ("%s not defined in environment", XSTRING_DATA (var)); | |
| 2396 else | |
| 2397 /* #### Should use Fprin1_to_string or Fprin1 to handle string | |
| 2398 containing quotes correctly. */ | |
| 2399 message ("\"%s\"", value); | |
| 2400 } | |
| 2401 RETURN_UNGCPRO (v); | |
| 2402 } | |
| 2403 | |
| 2404 /* A version of getenv that consults Vprocess_environment, easily | |
| 2405 callable from C. | |
| 2406 | |
| 2407 (At init time, Vprocess_environment is initialized from the | |
| 2408 environment, stored in the global variable environ. [Note that | |
| 2409 at startup time, `environ' should be the same as the envp parameter | |
| 2410 passed to main(); however, later calls to putenv() may change | |
| 2411 `environ', making the envp parameter inaccurate.] Calls to getenv() | |
| 2412 and putenv() consult and modify `environ'. However, once | |
| 2413 Vprocess_environment is initted, XEmacs C code should *NEVER* call | |
| 2414 getenv() or putenv() directly, because (1) Lisp code that modifies | |
| 2415 the environment only modifies Vprocess_environment, not `environ'; | |
| 2416 and (2) Vprocess_environment is in internal format but `environ' | |
| 2417 is in some external format, and getenv()/putenv() are not Mule- | |
| 2418 encapsulated. | |
| 2419 | |
| 2420 WARNING: This value points into Lisp string data and thus will become | |
| 2421 invalid after a GC. */ | |
| 2422 | |
| 867 | 2423 Ibyte * |
| 2424 egetenv (const CIbyte *var) | |
| 814 | 2425 { |
| 2426 /* This cannot GC -- 7-28-00 ben */ | |
| 867 | 2427 Ibyte *value; |
| 814 | 2428 Bytecount valuelen; |
| 2429 | |
| 867 | 2430 if (getenv_internal ((const Ibyte *) var, strlen (var), &value, &valuelen)) |
| 814 | 2431 return value; |
| 2432 else | |
| 2433 return 0; | |
| 2434 } | |
| 2435 | |
| 2436 void | |
| 867 | 2437 eputenv (const CIbyte *var, const CIbyte *value) |
| 814 | 2438 { |
| 867 | 2439 putenv_internal ((Ibyte *) var, strlen (var), (Ibyte *) value, |
| 814 | 2440 strlen (value)); |
| 2441 } | |
| 2442 | |
| 2443 | |
|
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2444 void |
|
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2445 reinit_process_early (void) |
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|
2446 { |
|
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|
2447 OBJECT_HAS_METHOD (process, getprop); |
|
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2448 OBJECT_HAS_METHOD (process, putprop); |
|
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2449 OBJECT_HAS_METHOD (process, remprop); |
|
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2450 OBJECT_HAS_METHOD (process, plist); |
|
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2451 OBJECT_HAS_METHOD (process, setplist); |
|
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2452 } |
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2453 |
| 814 | 2454 /* This is not named init_process in order to avoid a conflict with NS 3.3 */ |
| 2455 void | |
| 2456 init_xemacs_process (void) | |
| 2457 { | |
| 2458 /* This function can GC */ | |
| 2459 | |
| 2460 MAYBE_PROCMETH (init_process, ()); | |
| 2461 | |
| 2462 Vprocess_list = Qnil; | |
| 2463 | |
| 2464 if (usid_to_process) | |
| 2465 clrhash (usid_to_process); | |
| 2466 else | |
| 2467 usid_to_process = make_hash_table (32); | |
| 854 | 2468 |
| 814 | 2469 { |
| 2470 /* jwz: always initialize Vprocess_environment, so that egetenv() | |
| 2471 works in temacs. */ | |
| 2367 | 2472 Extbyte **envp; |
| 814 | 2473 Vprocess_environment = Qnil; |
| 2367 | 2474 #ifdef WIN32_NATIVE |
| 2475 _wgetenv (L""); /* force initialization of _wenviron */ | |
| 2476 for (envp = (Extbyte **) _wenviron; envp && *envp; envp++) | |
| 2477 Vprocess_environment = | |
|
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2478 Fcons (build_extstring (*envp, Qmswindows_unicode), |
| 2367 | 2479 Vprocess_environment); |
| 2480 #else | |
| 814 | 2481 for (envp = environ; envp && *envp; envp++) |
| 2482 Vprocess_environment = | |
|
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2483 Fcons (build_extstring (*envp, Qenvironment_variable_encoding), |
|
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|
2484 Vprocess_environment); |
| 2367 | 2485 #endif |
| 814 | 2486 /* This gets set back to 0 in disksave_object_finalization() */ |
| 2487 env_initted = 1; | |
| 2488 } | |
| 2489 | |
| 2490 { | |
| 2491 /* Initialize shell-file-name from environment variables or best guess. */ | |
| 2492 #ifdef WIN32_NATIVE | |
| 867 | 2493 const Ibyte *shell = egetenv ("SHELL"); |
| 814 | 2494 if (!shell) shell = egetenv ("COMSPEC"); |
| 2495 /* Should never happen! */ | |
| 2496 if (!shell) shell = | |
| 867 | 2497 (Ibyte *) (GetVersion () & 0x80000000 ? "command" : "cmd"); |
| 814 | 2498 #else /* not WIN32_NATIVE */ |
| 867 | 2499 const Ibyte *shell = egetenv ("SHELL"); |
| 2500 if (!shell) shell = (Ibyte *) "/bin/sh"; | |
| 814 | 2501 #endif |
| 2502 | |
| 2503 #if 0 /* defined (WIN32_NATIVE) */ | |
| 2504 /* BAD BAD BAD. We do not wanting to be passing an XEmacs-created | |
| 2505 SHELL var down to some inferior Cygwin process, which might get | |
| 2506 screwed up. | |
| 854 | 2507 |
| 814 | 2508 There are a few broken apps (eterm/term.el, eterm/tshell.el, |
| 2509 os-utils/terminal.el, texinfo/tex-mode.el) where this will | |
| 2510 cause problems. Those broken apps don't look at | |
| 2511 shell-file-name, instead just at explicit-shell-file-name, | |
| 2512 ESHELL and SHELL. They are apparently attempting to borrow | |
| 2513 what `M-x shell' uses, but that latter also looks at | |
| 2514 shell-file-name. What we want is for all of these apps to look | |
| 2515 at shell-file-name, so that the user can change the value of | |
| 2516 shell-file-name and everything will work out hunky-dorey. | |
| 2517 */ | |
| 854 | 2518 |
| 814 | 2519 if (!egetenv ("SHELL")) |
| 2520 { | |
| 2367 | 2521 Ibyte *faux_var = alloca_ibytes (7 + qxestrlen (shell)); |
| 814 | 2522 qxesprintf (faux_var, "SHELL=%s", shell); |
|
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|
2523 Vprocess_environment = Fcons (build_istring (faux_var), |
| 814 | 2524 Vprocess_environment); |
| 2525 } | |
| 2526 #endif /* 0 */ | |
| 2527 | |
|
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2528 Vshell_file_name = build_istring (shell); |
| 814 | 2529 } |
|
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2530 |
|
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|
2531 reinit_process_early (); |
| 814 | 2532 } |
| 2533 | |
| 428 | 2534 void |
| 2535 syms_of_process (void) | |
| 2536 { | |
|
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|
2537 INIT_LISP_OBJECT (process); |
| 442 | 2538 |
| 563 | 2539 DEFSYMBOL (Qprocessp); |
| 2540 DEFSYMBOL (Qprocess_live_p); | |
| 2541 DEFSYMBOL (Qrun); | |
| 2542 DEFSYMBOL (Qstop); | |
| 2543 DEFSYMBOL (Qopen); | |
| 2544 DEFSYMBOL (Qclosed); | |
| 863 | 2545 #if 0 |
| 2546 /* see comment at Fprocess_readable_p */ | |
| 2547 DEFSYMBOL (&Qprocess_readable_p); | |
| 2548 #endif | |
| 563 | 2549 DEFSYMBOL (Qtcp); |
| 2550 DEFSYMBOL (Qudp); | |
| 428 | 2551 |
| 2552 #ifdef HAVE_MULTICAST | |
| 563 | 2553 DEFSYMBOL (Qmulticast); /* Used for occasional warnings */ |
| 428 | 2554 #endif |
| 2555 | |
| 563 | 2556 DEFERROR_STANDARD (Qprocess_error, Qio_error); |
| 2557 DEFERROR_STANDARD (Qnetwork_error, Qio_error); | |
| 2558 | |
| 428 | 2559 DEFSUBR (Fprocessp); |
| 440 | 2560 DEFSUBR (Fprocess_live_p); |
| 863 | 2561 #if 0 |
| 2562 /* see comment at Fprocess_readable_p */ | |
| 2563 DEFSUBR (Fprocess_readable_p); | |
| 2564 #endif | |
| 428 | 2565 DEFSUBR (Fget_process); |
| 2566 DEFSUBR (Fget_buffer_process); | |
| 2567 DEFSUBR (Fdelete_process); | |
| 2568 DEFSUBR (Fprocess_status); | |
| 2569 DEFSUBR (Fprocess_exit_status); | |
| 2570 DEFSUBR (Fprocess_id); | |
| 2571 DEFSUBR (Fprocess_name); | |
| 2572 DEFSUBR (Fprocess_tty_name); | |
| 2573 DEFSUBR (Fprocess_command); | |
| 859 | 2574 DEFSUBR (Fprocess_has_separate_stderr_p); |
| 428 | 2575 DEFSUBR (Fset_process_buffer); |
| 853 | 2576 DEFSUBR (Fset_process_stderr_buffer); |
| 428 | 2577 DEFSUBR (Fprocess_buffer); |
| 2578 DEFSUBR (Fprocess_mark); | |
| 853 | 2579 DEFSUBR (Fprocess_stderr_buffer); |
| 2580 DEFSUBR (Fprocess_stderr_mark); | |
| 428 | 2581 DEFSUBR (Fset_process_filter); |
| 2582 DEFSUBR (Fprocess_filter); | |
| 853 | 2583 DEFSUBR (Fset_process_stderr_filter); |
| 2584 DEFSUBR (Fprocess_stderr_filter); | |
| 428 | 2585 DEFSUBR (Fset_process_window_size); |
| 2586 DEFSUBR (Fset_process_sentinel); | |
| 2587 DEFSUBR (Fprocess_sentinel); | |
| 2588 DEFSUBR (Fprocess_kill_without_query); | |
| 2589 DEFSUBR (Fprocess_kill_without_query_p); | |
| 2590 DEFSUBR (Fprocess_list); | |
| 2591 DEFSUBR (Fstart_process_internal); | |
| 2592 #ifdef HAVE_SOCKETS | |
| 2593 DEFSUBR (Fopen_network_stream_internal); | |
| 2594 #ifdef HAVE_MULTICAST | |
| 2595 DEFSUBR (Fopen_multicast_group_internal); | |
| 2596 #endif /* HAVE_MULTICAST */ | |
| 2597 #endif /* HAVE_SOCKETS */ | |
| 2598 DEFSUBR (Fprocess_send_region); | |
| 2599 DEFSUBR (Fprocess_send_string); | |
| 442 | 2600 DEFSUBR (Fprocess_send_signal); |
| 428 | 2601 DEFSUBR (Finterrupt_process); |
| 2602 DEFSUBR (Fkill_process); | |
| 2603 DEFSUBR (Fquit_process); | |
| 2604 DEFSUBR (Fstop_process); | |
| 2605 DEFSUBR (Fcontinue_process); | |
| 2606 DEFSUBR (Fprocess_send_eof); | |
| 2607 DEFSUBR (Fsignal_process); | |
| 2608 /* DEFSUBR (Fprocess_connection); */ | |
| 2609 DEFSUBR (Fprocess_input_coding_system); | |
| 2610 DEFSUBR (Fprocess_output_coding_system); | |
| 2611 DEFSUBR (Fset_process_input_coding_system); | |
| 2612 DEFSUBR (Fset_process_output_coding_system); | |
| 2613 DEFSUBR (Fprocess_coding_system); | |
| 2614 DEFSUBR (Fset_process_coding_system); | |
| 814 | 2615 DEFSUBR (Fgetenv); |
| 428 | 2616 } |
| 2617 | |
| 2618 void | |
| 2619 vars_of_process (void) | |
| 2620 { | |
| 2621 Fprovide (intern ("subprocesses")); | |
| 2622 #ifdef HAVE_SOCKETS | |
| 2623 Fprovide (intern ("network-streams")); | |
| 2624 #ifdef HAVE_MULTICAST | |
| 2625 Fprovide (intern ("multicast")); | |
| 2626 #endif /* HAVE_MULTICAST */ | |
| 2627 #endif /* HAVE_SOCKETS */ | |
| 2628 staticpro (&Vprocess_list); | |
| 2629 | |
| 2630 DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes /* | |
| 2631 *Non-nil means delete processes immediately when they exit. | |
| 2632 nil means don't delete them until `list-processes' is run. | |
| 2633 */ ); | |
| 2634 | |
| 2635 delete_exited_processes = 1; | |
| 2636 | |
| 442 | 2637 DEFVAR_CONST_LISP ("null-device", &Vnull_device /* |
| 2638 Name of the null device, which differs from system to system. | |
| 2639 The null device is a filename that acts as a sink for arbitrary amounts of | |
| 2640 data, which is discarded, or as a source for a zero-length file. | |
| 2641 It is available on all the systems that we currently support, but with | |
| 2642 different names (typically either `/dev/null' or `nul'). | |
| 2643 | |
| 2644 Note that there is also a /dev/zero on most modern Unix versions (including | |
| 2645 Cygwin), which acts like /dev/null when used as a sink, but as a source | |
| 2646 it sends a non-ending stream of zero bytes. It's used most often along | |
| 2647 with memory-mapping. We don't provide a Lisp variable for this because | |
| 2648 the operations needing this are lower level than what ELisp programs | |
| 2649 typically do, and in any case no equivalent exists under native MS Windows. | |
| 2650 */ ); | |
|
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|
2651 Vnull_device = build_ascstring (NULL_DEVICE); |
| 442 | 2652 |
| 428 | 2653 DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type /* |
| 2654 Control type of device used to communicate with subprocesses. | |
| 2655 Values are nil to use a pipe, or t or `pty' to use a pty. | |
| 2656 The value has no effect if the system has no ptys or if all ptys are busy: | |
| 2657 then a pipe is used in any case. | |
| 2658 The value takes effect when `start-process' is called. | |
| 2659 */ ); | |
| 2660 Vprocess_connection_type = Qt; | |
| 2661 | |
| 2662 DEFVAR_BOOL ("windowed-process-io", &windowed_process_io /* | |
| 2663 Enables input/output on standard handles of a windowed process. | |
| 2664 When this variable is nil (the default), XEmacs does not attempt to read | |
| 2665 standard output handle of a windowed process. Instead, the process is | |
| 2666 immediately marked as exited immediately upon successful launching. This is | |
| 2667 done because normal windowed processes do not use standard I/O, as they are | |
| 2668 not connected to any console. | |
| 2669 | |
| 2670 When launching a specially crafted windowed process, which expects to be | |
| 2671 launched by XEmacs, or by other program which pipes its standard input and | |
| 2672 output, this variable must be set to non-nil, in which case XEmacs will | |
| 2673 treat this process just like a console process. | |
| 2674 | |
| 2675 NOTE: You should never set this variable, only bind it. | |
| 2676 | |
| 2677 Only Windows processes can be "windowed" or "console". This variable has no | |
| 2678 effect on UNIX processes, because all UNIX processes are "console". | |
| 2679 */ ); | |
| 2680 windowed_process_io = 0; | |
| 2681 | |
| 771 | 2682 DEFVAR_INT ("debug-process-io", &debug_process_io /* |
| 2683 If non-zero, display data sent to or received from a process. | |
| 2684 */ ); | |
| 2685 debug_process_io = 0; | |
| 2686 | |
| 2687 DEFVAR_LISP ("default-process-coding-system", | |
| 2688 &Vdefault_process_coding_system /* | |
| 2689 Cons of coding systems used for process I/O by default. | |
|
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2690 May also be nil, interpreted as (nil . nil). |
| 771 | 2691 The car part is used for reading (decoding) data from a process, and |
| 2692 the cdr part is used for writing (encoding) data to a process. | |
| 2693 */ ); | |
|
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|
2694 /* Better, system-dependent defaults are set in code-init.el. */ |
| 771 | 2695 Vdefault_process_coding_system = Fcons (Qundecided, Qnil); |
| 2696 | |
| 853 | 2697 DEFVAR_LISP ("default-network-coding-system", |
| 2698 &Vdefault_network_coding_system /* | |
| 2699 Cons of coding systems used for network I/O by default. | |
|
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|
2700 May also be nil, interpreted as (nil . nil). |
| 853 | 2701 The car part is used for reading (decoding) data from a process, and |
| 2702 the cdr part is used for writing (encoding) data to a process. | |
| 2703 */ ); | |
| 2704 Vdefault_network_coding_system = Fcons (Qundecided, Qnil); | |
| 2705 | |
| 428 | 2706 #ifdef PROCESS_IO_BLOCKING |
| 2707 DEFVAR_LISP ("network-stream-blocking-port-list", &network_stream_blocking_port_list /* | |
| 2708 List of port numbers or port names to set a blocking I/O mode with connection. | |
| 862 | 2709 Nil value means to set a default (non-blocking) I/O mode. |
| 428 | 2710 The value takes effect when `open-network-stream-internal' is called. |
| 2711 */ ); | |
| 2712 network_stream_blocking_port_list = Qnil; | |
| 2713 #endif /* PROCESS_IO_BLOCKING */ | |
| 814 | 2714 |
| 2715 /* This function can GC */ | |
| 2716 DEFVAR_LISP ("shell-file-name", &Vshell_file_name /* | |
| 2717 *File name to load inferior shells from. | |
| 2718 Initialized from the SHELL environment variable. | |
| 2719 */ ); | |
| 428 | 2720 |
|
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|
2721 /* ben? thinks the format of this variable is "semi-bogus". |
|
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|
2722 sjt doesn't agree, since it captures a restriction that is |
|
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|
2723 present in POSIX shells, after all. */ |
| 814 | 2724 DEFVAR_LISP ("process-environment", &Vprocess_environment /* |
| 2725 List of environment variables for subprocesses to inherit. | |
| 2726 Each element should be a string of the form ENVVARNAME=VALUE. | |
| 2727 The environment which Emacs inherits is placed in this variable | |
| 2728 when Emacs starts. | |
| 2729 */ ); | |
| 2730 | |
|
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2731 Vlisp_EXEC_SUFFIXES = build_ascstring (EXEC_SUFFIXES); |
| 814 | 2732 staticpro (&Vlisp_EXEC_SUFFIXES); |
| 2733 } |