Mercurial > hg > xemacs-beta
annotate src/process.c @ 5596:3b1d4fa716a4
Ignore lazy docstring info, #'built-in-symbol-file; nothing built-in uses it.
2011-11-13 Aidan Kehoe <kehoea@parhasard.net>
* doc.c (Fbuilt_in_symbol_file):
Don't attempt to take file information from lazy docstring
information in compiled functions; those functions are not
built-in, and as such it's appropriate to give nil.
Fix some indentation in passing.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sun, 13 Nov 2011 17:13:52 +0000 |
| parents | 2dbefd79b3d3 |
| children | 3192994c49ca |
| 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 | |
|
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9 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 10 under the terms of the GNU General Public License as published by the |
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11 Free Software Foundation, either version 3 of the License, or (at your |
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12 option) any later version. |
| 428 | 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 | |
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20 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 21 |
| 814 | 22 /* This file has been Mule-ized. */ |
| 428 | 23 |
| 24 /* This file has been split into process.c and process-unix.c by | |
| 25 Kirill M. Katsnelson <kkm@kis.ru>, so please bash him and not | |
| 814 | 26 the original author(s). |
| 27 | |
| 28 Non-synch-subprocess stuff (mostly process environment) moved from | |
| 853 | 29 callproc.c, 4-3-02, Ben Wing. |
| 30 | |
| 31 callproc.c deleted entirely 5-23-02, Ben Wing. Good riddance! | |
| 32 */ | |
| 428 | 33 |
| 34 #include <config.h> | |
| 35 | |
| 36 #include "lisp.h" | |
| 37 | |
| 38 #include "buffer.h" | |
| 39 #include "commands.h" | |
| 800 | 40 #include "device.h" |
| 428 | 41 #include "events.h" |
| 800 | 42 #include "file-coding.h" |
| 428 | 43 #include "frame.h" |
| 44 #include "hash.h" | |
| 45 #include "insdel.h" | |
| 46 #include "lstream.h" | |
| 47 #include "opaque.h" | |
| 48 #include "process.h" | |
| 49 #include "procimpl.h" | |
| 816 | 50 #include "sysdep.h" |
| 428 | 51 #include "window.h" |
| 52 | |
| 53 #include "sysfile.h" | |
| 54 #include "sysproc.h" | |
| 859 | 55 #include "syssignal.h" |
| 428 | 56 #include "systime.h" |
| 57 #include "systty.h" | |
| 58 #include "syswait.h" | |
| 59 | |
| 2367 | 60 #ifdef WIN32_NATIVE |
| 61 #include "syswindows.h" | |
| 62 #endif | |
| 63 | |
| 863 | 64 Lisp_Object Qprocessp, Qprocess_live_p, Qprocess_readable_p; |
| 428 | 65 |
| 66 /* Process methods */ | |
| 67 struct process_methods the_process_methods; | |
| 68 | |
| 69 /* a process object is a network connection when its pid field a cons | |
| 70 (name of name of port we are connected to . foreign host name) */ | |
| 71 | |
| 72 /* Valid values of process->status_symbol */ | |
| 73 Lisp_Object Qrun, Qstop; | |
| 74 /* Qrun => Qopen, Qexit => Qclosed for "network connection" processes */ | |
| 75 Lisp_Object Qopen, Qclosed; | |
| 76 /* Protocol families */ | |
| 77 Lisp_Object Qtcp, Qudp; | |
| 78 | |
| 79 #ifdef HAVE_MULTICAST | |
| 80 Lisp_Object Qmulticast; /* Will be used for occasional warnings */ | |
| 81 #endif | |
| 82 | |
| 83 /* t means use pty, nil means use a pipe, | |
| 84 maybe other values to come. */ | |
| 85 Lisp_Object Vprocess_connection_type; | |
| 86 | |
| 87 /* Read comments to DEFVAR of this */ | |
| 88 int windowed_process_io; | |
| 89 | |
| 90 #ifdef PROCESS_IO_BLOCKING | |
| 91 /* List of port numbers or port names to set a blocking I/O mode. | |
| 92 Nil means set a non-blocking I/O mode [default]. */ | |
| 93 Lisp_Object network_stream_blocking_port_list; | |
| 94 #endif /* PROCESS_IO_BLOCKING */ | |
| 95 | |
| 96 /* Number of events of change of status of a process. */ | |
| 97 volatile int process_tick; | |
| 98 | |
| 99 /* Number of events for which the user or sentinel has been notified. */ | |
| 100 static int update_tick; | |
| 101 | |
| 102 /* Nonzero means delete a process right away if it exits. */ | |
| 103 int delete_exited_processes; | |
| 104 | |
| 853 | 105 /* Hash table which maps USIDs as returned by create_io_streams_cb to |
| 428 | 106 process objects. Processes are not GC-protected through this! */ |
| 107 struct hash_table *usid_to_process; | |
| 108 | |
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109 /* Read-only to Lisp. See DEFUN Fprocess_list. */ |
| 428 | 110 Lisp_Object Vprocess_list; |
| 111 | |
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112 /* Lisp variables; see docstrings below. */ |
| 442 | 113 Lisp_Object Vnull_device; |
| 771 | 114 Lisp_Object Vdefault_process_coding_system; |
| 853 | 115 Lisp_Object Vdefault_network_coding_system; |
| 563 | 116 Lisp_Object Qprocess_error; |
| 117 Lisp_Object Qnetwork_error; | |
| 771 | 118 Fixnum debug_process_io; |
| 814 | 119 Lisp_Object Vshell_file_name; |
| 120 Lisp_Object Vprocess_environment; | |
| 121 | |
| 122 /* Make sure egetenv() not called too soon */ | |
| 123 int env_initted; | |
| 124 | |
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125 /* Internal Lisp variable. */ |
| 814 | 126 Lisp_Object Vlisp_EXEC_SUFFIXES; |
| 127 | |
| 428 | 128 |
| 129 | |
| 1204 | 130 static const struct memory_description process_description [] = { |
| 131 #define MARKED_SLOT(x) { XD_LISP_OBJECT, offsetof (Lisp_Process, x) }, | |
| 132 #include "process-slots.h" | |
| 934 | 133 { XD_END } |
| 134 }; | |
| 135 | |
| 428 | 136 static Lisp_Object |
| 444 | 137 mark_process (Lisp_Object object) |
| 428 | 138 { |
| 444 | 139 Lisp_Process *process = XPROCESS (object); |
| 1204 | 140 #define MARKED_SLOT(x) mark_object (process->x); |
| 141 #include "process-slots.h" | |
| 142 return Qnil; | |
| 428 | 143 } |
| 144 | |
| 145 static void | |
| 4846 | 146 print_process (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag) |
| 428 | 147 { |
| 4846 | 148 Lisp_Process *process = XPROCESS (obj); |
| 428 | 149 |
| 150 if (print_readably) | |
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151 printing_unreadable_lisp_object (obj, XSTRING_DATA (process->name)); |
| 428 | 152 |
| 153 if (!escapeflag) | |
| 154 { | |
| 444 | 155 print_internal (process->name, printcharfun, 0); |
| 428 | 156 } |
| 157 else | |
| 158 { | |
| 4846 | 159 int netp = network_connection_p (obj); |
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160 write_ascstring (printcharfun, |
| 826 | 161 netp ? GETTEXT ("#<network connection ") : |
| 162 GETTEXT ("#<process ")); | |
| 444 | 163 print_internal (process->name, printcharfun, 1); |
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164 write_ascstring (printcharfun, (netp ? " " : " pid ")); |
| 444 | 165 print_internal (process->pid, printcharfun, 1); |
| 800 | 166 write_fmt_string_lisp (printcharfun, " state:%S", 1, process->status_symbol); |
| 444 | 167 MAYBE_PROCMETH (print_process_data, (process, printcharfun)); |
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168 write_ascstring (printcharfun, ">"); |
| 428 | 169 } |
| 170 } | |
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171 /* Process plists are directly accessible, so we need to protect against |
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172 invalid property list structure */ |
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173 |
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174 static Lisp_Object |
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175 process_getprop (Lisp_Object process, Lisp_Object property) |
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176 { |
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177 return external_plist_get (&XPROCESS (process)->plist, property, 0, |
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178 ERROR_ME); |
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179 } |
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180 |
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181 static int |
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182 process_putprop (Lisp_Object process, Lisp_Object property, Lisp_Object value) |
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183 { |
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184 external_plist_put (&XPROCESS (process)->plist, property, value, 0, |
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185 ERROR_ME); |
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186 return 1; |
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187 } |
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188 |
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189 static int |
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190 process_remprop (Lisp_Object process, Lisp_Object property) |
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191 { |
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192 return external_remprop (&XPROCESS (process)->plist, property, 0, ERROR_ME); |
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193 } |
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194 |
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195 static Lisp_Object |
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196 process_plist (Lisp_Object process) |
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197 { |
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198 return XPROCESS (process)->plist; |
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199 } |
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200 |
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201 static Lisp_Object |
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202 process_setplist (Lisp_Object process, Lisp_Object newplist) |
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203 { |
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204 XPROCESS (process)->plist = newplist; |
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205 return newplist; |
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206 } |
| 428 | 207 |
| 208 #ifdef HAVE_WINDOW_SYSTEM | |
| 440 | 209 extern void debug_process_finalization (Lisp_Process *p); |
| 428 | 210 #endif /* HAVE_WINDOW_SYSTEM */ |
| 211 | |
| 212 static void | |
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213 finalize_process (Lisp_Object obj) |
| 428 | 214 { |
| 215 /* #### this probably needs to be tied into the tty event loop */ | |
| 216 /* #### when there is one */ | |
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217 Lisp_Process *p = XPROCESS (obj); |
| 428 | 218 #ifdef HAVE_WINDOW_SYSTEM |
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219 debug_process_finalization (p); |
| 428 | 220 #endif /* HAVE_WINDOW_SYSTEM */ |
| 221 | |
| 222 if (p->process_data) | |
| 223 { | |
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224 MAYBE_PROCMETH (finalize_process_data, (p)); |
| 5125 | 225 xfree (p->process_data); |
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226 p->process_data = 0; |
| 428 | 227 } |
| 228 } | |
| 229 | |
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230 DEFINE_NODUMP_LISP_OBJECT ("process", process, |
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231 mark_process, print_process, finalize_process, |
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232 0, 0, process_description, Lisp_Process); |
| 428 | 233 |
| 234 /************************************************************************/ | |
| 235 /* basic process accessors */ | |
| 236 /************************************************************************/ | |
| 237 | |
| 771 | 238 /* This function returns low-level streams, connected directly to the child |
| 239 process, rather than en/decoding streams */ | |
| 428 | 240 void |
| 853 | 241 get_process_streams (Lisp_Process *p, Lisp_Object *instr, Lisp_Object *outstr, |
| 242 Lisp_Object *errstr) | |
| 428 | 243 { |
| 244 assert (p); | |
| 853 | 245 assert (NILP (p->pipe_instream) || LSTREAMP (p->pipe_instream)); |
| 246 assert (NILP (p->pipe_outstream) || LSTREAMP (p->pipe_outstream)); | |
| 247 assert (NILP (p->pipe_errstream) || LSTREAMP (p->pipe_errstream)); | |
| 428 | 248 *instr = p->pipe_instream; |
| 249 *outstr = p->pipe_outstream; | |
| 853 | 250 *errstr = p->pipe_errstream; |
| 428 | 251 } |
| 252 | |
| 853 | 253 /* Given a USID referring to either a process's instream or errstream, |
| 254 return the associated process. */ | |
| 440 | 255 Lisp_Process * |
| 428 | 256 get_process_from_usid (USID usid) |
| 257 { | |
| 442 | 258 const void *vval; |
| 428 | 259 |
| 260 assert (usid != USID_ERROR && usid != USID_DONTHASH); | |
| 261 | |
| 442 | 262 if (gethash ((const void*)usid, usid_to_process, &vval)) |
| 428 | 263 { |
| 444 | 264 Lisp_Object process; |
| 5013 | 265 process = GET_LISP_FROM_VOID (vval); |
| 444 | 266 return XPROCESS (process); |
| 428 | 267 } |
| 268 else | |
| 269 return 0; | |
| 270 } | |
| 271 | |
| 272 int | |
| 853 | 273 get_process_selected_p (Lisp_Process *p, int do_err) |
| 428 | 274 { |
| 853 | 275 return do_err ? p->err_selected : p->in_selected; |
| 428 | 276 } |
| 277 | |
| 278 void | |
| 853 | 279 set_process_selected_p (Lisp_Process *p, int in_selected, int err_selected) |
| 428 | 280 { |
| 853 | 281 p->in_selected = !!in_selected; |
| 282 p->err_selected = !!err_selected; | |
| 428 | 283 } |
| 284 | |
| 285 int | |
| 440 | 286 connected_via_filedesc_p (Lisp_Process *p) |
| 428 | 287 { |
| 288 return MAYBE_INT_PROCMETH (tooltalk_connection_p, (p)); | |
| 289 } | |
| 290 | |
| 291 #ifdef HAVE_SOCKETS | |
| 292 int | |
| 293 network_connection_p (Lisp_Object process) | |
| 294 { | |
| 295 return CONSP (XPROCESS (process)->pid); | |
| 296 } | |
| 297 #endif | |
| 298 | |
| 299 DEFUN ("processp", Fprocessp, 1, 1, 0, /* | |
| 300 Return t if OBJECT is a process. | |
| 301 */ | |
| 444 | 302 (object)) |
| 428 | 303 { |
| 444 | 304 return PROCESSP (object) ? Qt : Qnil; |
| 428 | 305 } |
| 306 | |
| 440 | 307 DEFUN ("process-live-p", Fprocess_live_p, 1, 1, 0, /* |
| 308 Return t if OBJECT is a process that is alive. | |
| 309 */ | |
| 444 | 310 (object)) |
| 440 | 311 { |
| 444 | 312 return PROCESSP (object) && PROCESS_LIVE_P (XPROCESS (object)) |
| 313 ? Qt : Qnil; | |
| 440 | 314 } |
| 315 | |
| 863 | 316 #if 0 |
| 317 /* This is a reasonable definition for this new primitive. Kyle sez: | |
| 318 | |
| 319 "The patch looks OK to me except for the creation and exporting of the | |
| 320 Fprocess_readable_p function. I don't think a new Lisp function | |
| 321 should be created until we know something actually needs it. If | |
| 322 we later want to give process-readable-p different semantics it | |
| 323 may be hard to do it and stay compatible with what we hastily | |
| 324 create today." | |
| 325 | |
| 326 He's right, not yet. Let's discuss the semantics on XEmacs Design | |
| 327 before enabling this. | |
| 328 */ | |
| 329 DEFUN ("process-readable-p", Fprocess_readable_p, 1, 1, 0, /* | |
| 330 Return t if OBJECT is a process from which input may be available. | |
| 331 */ | |
| 332 (object)) | |
| 333 { | |
| 334 return PROCESSP (object) && PROCESS_READABLE_P (XPROCESS (object)) | |
| 335 ? Qt : Qnil; | |
| 336 } | |
| 337 #endif | |
| 338 | |
| 428 | 339 DEFUN ("process-list", Fprocess_list, 0, 0, 0, /* |
| 340 Return a list of all processes. | |
| 341 */ | |
| 342 ()) | |
| 343 { | |
| 344 return Fcopy_sequence (Vprocess_list); | |
| 345 } | |
| 346 | |
| 347 DEFUN ("get-process", Fget_process, 1, 1, 0, /* | |
| 444 | 348 Return the process named PROCESS-NAME (a string), or nil if there is none. |
| 349 PROCESS-NAME may also be a process; if so, the value is that process. | |
| 428 | 350 */ |
| 444 | 351 (process_name)) |
| 428 | 352 { |
| 444 | 353 if (PROCESSP (process_name)) |
| 354 return process_name; | |
| 428 | 355 |
| 356 if (!gc_in_progress) | |
| 357 /* this only gets called during GC when emacs is going away as a result | |
| 358 of a signal or crash. */ | |
| 444 | 359 CHECK_STRING (process_name); |
| 428 | 360 |
| 444 | 361 { |
| 362 LIST_LOOP_2 (process, Vprocess_list) | |
| 363 if (internal_equal (process_name, XPROCESS (process)->name, 0)) | |
| 364 return process; | |
| 365 } | |
| 428 | 366 return Qnil; |
| 367 } | |
| 368 | |
| 369 DEFUN ("get-buffer-process", Fget_buffer_process, 1, 1, 0, /* | |
| 370 Return the (or, a) process associated with BUFFER. | |
| 371 BUFFER may be a buffer or the name of one. | |
| 372 */ | |
| 444 | 373 (buffer)) |
| 428 | 374 { |
| 444 | 375 if (NILP (buffer)) return Qnil; |
| 376 buffer = Fget_buffer (buffer); | |
| 377 if (NILP (buffer)) return Qnil; | |
| 428 | 378 |
| 444 | 379 { |
| 380 LIST_LOOP_2 (process, Vprocess_list) | |
| 381 if (EQ (XPROCESS (process)->buffer, buffer)) | |
| 382 return process; | |
| 383 } | |
| 428 | 384 return Qnil; |
| 385 } | |
| 386 | |
| 387 /* This is how commands for the user decode process arguments. It | |
| 388 accepts a process, a process name, a buffer, a buffer name, or nil. | |
| 389 Buffers denote the first process in the buffer, and nil denotes the | |
| 390 current buffer. */ | |
| 391 | |
| 392 static Lisp_Object | |
| 393 get_process (Lisp_Object name) | |
| 394 { | |
| 444 | 395 Lisp_Object buffer; |
| 428 | 396 |
| 397 #ifdef I18N3 | |
| 398 /* #### Look more closely into translating process names. */ | |
| 399 #endif | |
| 400 | |
| 401 /* This may be called during a GC from process_send_signal() from | |
| 2500 | 402 kill_buffer_processes() if emacs decides to ABORT(). */ |
| 428 | 403 if (PROCESSP (name)) |
| 404 return name; | |
| 444 | 405 else if (STRINGP (name)) |
| 428 | 406 { |
| 444 | 407 Lisp_Object object = Fget_process (name); |
| 408 if (PROCESSP (object)) | |
| 409 return object; | |
| 410 | |
| 411 buffer = Fget_buffer (name); | |
| 412 if (BUFFERP (buffer)) | |
| 413 goto have_buffer_object; | |
| 414 | |
| 563 | 415 invalid_argument ("Process does not exist", name); |
| 428 | 416 } |
| 417 else if (NILP (name)) | |
| 444 | 418 { |
| 419 buffer = Fcurrent_buffer (); | |
| 420 goto have_buffer_object; | |
| 421 } | |
| 422 else if (BUFFERP (name)) | |
| 423 { | |
| 424 Lisp_Object process; | |
| 425 buffer = name; | |
| 428 | 426 |
| 444 | 427 have_buffer_object: |
| 428 process = Fget_buffer_process (buffer); | |
| 429 if (PROCESSP (process)) | |
| 430 return process; | |
| 431 | |
| 563 | 432 invalid_argument ("Buffer has no process", buffer); |
| 428 | 433 } |
| 434 else | |
| 444 | 435 return get_process (Fsignal (Qwrong_type_argument, |
| 771 | 436 (list2 (build_msg_string ("process or buffer or nil"), |
| 444 | 437 name)))); |
| 428 | 438 } |
| 439 | |
| 440 DEFUN ("process-id", Fprocess_id, 1, 1, 0, /* | |
| 441 Return the process id of PROCESS. | |
| 442 This is the pid of the Unix process which PROCESS uses or talks to. | |
| 443 For a network connection, this value is a cons of | |
| 444 (foreign-network-port . foreign-host-name). | |
| 445 */ | |
| 444 | 446 (process)) |
| 428 | 447 { |
| 448 Lisp_Object pid; | |
| 444 | 449 CHECK_PROCESS (process); |
| 428 | 450 |
| 444 | 451 pid = XPROCESS (process)->pid; |
| 452 if (network_connection_p (process)) | |
| 428 | 453 /* return Qnil; */ |
| 454 return Fcons (Fcar (pid), Fcdr (pid)); | |
| 455 else | |
| 456 return pid; | |
| 457 } | |
| 458 | |
| 459 DEFUN ("process-name", Fprocess_name, 1, 1, 0, /* | |
| 460 Return the name of PROCESS, as a string. | |
| 461 This is the name of the program invoked in PROCESS, | |
| 462 possibly modified to make it unique among process names. | |
| 463 */ | |
| 444 | 464 (process)) |
| 428 | 465 { |
| 444 | 466 CHECK_PROCESS (process); |
| 467 return XPROCESS (process)->name; | |
| 428 | 468 } |
| 469 | |
| 470 DEFUN ("process-command", Fprocess_command, 1, 1, 0, /* | |
| 471 Return the command that was executed to start PROCESS. | |
| 472 This is a list of strings, the first string being the program executed | |
| 473 and the rest of the strings being the arguments given to it. | |
| 474 */ | |
| 444 | 475 (process)) |
| 428 | 476 { |
| 444 | 477 CHECK_PROCESS (process); |
| 478 return XPROCESS (process)->command; | |
| 428 | 479 } |
| 480 | |
| 481 | |
| 482 /************************************************************************/ | |
| 483 /* creating a process */ | |
| 484 /************************************************************************/ | |
| 485 | |
| 563 | 486 DOESNT_RETURN |
|
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487 report_process_error (const Ascbyte *reason, Lisp_Object data) |
| 563 | 488 { |
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489 report_error_with_errno (Qprocess_error, reason, data); |
| 563 | 490 } |
| 491 | |
| 492 DOESNT_RETURN | |
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493 report_network_error (const Ascbyte *reason, Lisp_Object data) |
| 563 | 494 { |
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495 report_error_with_errno (Qnetwork_error, reason, data); |
| 563 | 496 } |
| 497 | |
| 428 | 498 Lisp_Object |
| 499 make_process_internal (Lisp_Object name) | |
| 500 { | |
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501 Lisp_Object name1; |
| 428 | 502 int i; |
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503 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (process); |
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504 Lisp_Process *p = XPROCESS (obj); |
| 428 | 505 |
| 1204 | 506 #define MARKED_SLOT(x) p->x = Qnil; |
| 507 #include "process-slots.h" | |
| 508 | |
| 428 | 509 /* If name is already in use, modify it until it is unused. */ |
| 510 name1 = name; | |
| 511 for (i = 1; ; i++) | |
| 512 { | |
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513 Ascbyte suffix[10]; |
| 428 | 514 Lisp_Object tem = Fget_process (name1); |
| 515 if (NILP (tem)) | |
| 516 break; | |
| 517 sprintf (suffix, "<%d>", i); | |
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518 name1 = concat2 (name, build_ascstring (suffix)); |
| 428 | 519 } |
| 520 name = name1; | |
| 521 p->name = name; | |
| 522 | |
| 523 p->mark = Fmake_marker (); | |
| 853 | 524 p->stderr_mark = Fmake_marker (); |
| 428 | 525 p->status_symbol = Qrun; |
| 526 | |
| 527 MAYBE_PROCMETH (alloc_process_data, (p)); | |
| 528 | |
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529 Vprocess_list = Fcons (obj, Vprocess_list); |
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530 return obj; |
| 428 | 531 } |
| 532 | |
| 533 void | |
| 853 | 534 init_process_io_handles (Lisp_Process *p, void* in, void* out, void* err, |
| 535 int flags) | |
| 428 | 536 { |
| 853 | 537 USID in_usid, err_usid; |
| 771 | 538 Lisp_Object incode, outcode; |
| 539 | |
| 853 | 540 if (flags & STREAM_NETWORK_CONNECTION) |
| 541 { | |
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542 if (!LISTP (Vdefault_network_coding_system) || |
| 853 | 543 NILP (incode = (find_coding_system_for_text_file |
| 544 (Fcar (Vdefault_network_coding_system), 1))) || | |
| 545 NILP (outcode = (find_coding_system_for_text_file | |
| 546 (Fcdr (Vdefault_network_coding_system), 0)))) | |
| 547 signal_error (Qinvalid_state, | |
| 548 "Bogus value for `default-network-coding-system'", | |
| 549 Vdefault_network_coding_system); | |
| 550 } | |
| 551 else | |
| 552 { | |
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553 if (!LISTP (Vdefault_process_coding_system) || |
| 853 | 554 NILP (incode = (find_coding_system_for_text_file |
| 555 (Fcar (Vdefault_process_coding_system), 1))) || | |
| 556 NILP (outcode = (find_coding_system_for_text_file | |
| 557 (Fcdr (Vdefault_process_coding_system), 0)))) | |
| 558 signal_error (Qinvalid_state, | |
| 559 "Bogus value for `default-process-coding-system'", | |
| 560 Vdefault_process_coding_system); | |
| 561 } | |
| 771 | 562 |
| 784 | 563 if (!NILP (Vcoding_system_for_read) && |
| 564 NILP (incode = (find_coding_system_for_text_file | |
| 565 (Vcoding_system_for_read, 1)))) | |
| 566 signal_error (Qinvalid_state, | |
| 567 "Bogus value for `coding-system-for-read'", | |
| 568 Vcoding_system_for_read); | |
| 569 | |
| 570 if (!NILP (Vcoding_system_for_write) && | |
| 571 NILP (outcode = (find_coding_system_for_text_file | |
| 572 (Vcoding_system_for_write, 0)))) | |
| 573 signal_error (Qinvalid_state, | |
| 574 "Bogus value for `coding-system-for-write'", | |
| 575 Vcoding_system_for_write); | |
| 576 | |
| 853 | 577 event_stream_create_io_streams (in, out, err, |
| 578 &p->pipe_instream, | |
| 579 &p->pipe_outstream, | |
| 580 &p->pipe_errstream, | |
| 581 &in_usid, &err_usid, | |
| 582 flags); | |
| 428 | 583 |
| 853 | 584 if (in_usid == USID_ERROR || err_usid == USID_ERROR) |
| 563 | 585 signal_error (Qprocess_error, "Setting up communication with subprocess", |
| 853 | 586 wrap_process (p)); |
| 428 | 587 |
| 853 | 588 if (in_usid != USID_DONTHASH) |
| 428 | 589 { |
| 444 | 590 Lisp_Object process = Qnil; |
| 793 | 591 process = wrap_process (p); |
| 5013 | 592 puthash ((const void*) in_usid, STORE_LISP_IN_VOID (process), usid_to_process); |
| 428 | 593 } |
| 594 | |
| 853 | 595 if (err_usid != USID_DONTHASH) |
| 596 { | |
| 597 Lisp_Object process = Qnil; | |
| 598 process = wrap_process (p); | |
| 5013 | 599 puthash ((const void*) err_usid, STORE_LISP_IN_VOID (process), |
| 853 | 600 usid_to_process); |
| 601 } | |
| 602 | |
| 603 MAYBE_PROCMETH (init_process_io_handles, (p, in, out, err, flags)); | |
| 428 | 604 |
| 771 | 605 p->coding_instream = |
| 800 | 606 make_coding_input_stream (XLSTREAM (p->pipe_instream), incode, |
| 607 CODING_DECODE, 0); | |
| 853 | 608 if (!NILP (p->pipe_errstream)) |
| 609 p->coding_errstream = | |
| 610 make_coding_input_stream | |
| 611 (XLSTREAM (p->pipe_errstream), incode, CODING_DECODE, 0); | |
| 771 | 612 p->coding_outstream = |
| 800 | 613 make_coding_output_stream (XLSTREAM (p->pipe_outstream), outcode, |
| 614 CODING_ENCODE, 0); | |
| 428 | 615 } |
| 616 | |
| 617 static void | |
| 618 create_process (Lisp_Object process, Lisp_Object *argv, int nargv, | |
| 853 | 619 Lisp_Object program, Lisp_Object cur_dir, |
| 620 int separate_err) | |
| 428 | 621 { |
| 440 | 622 Lisp_Process *p = XPROCESS (process); |
| 428 | 623 int pid; |
| 624 | |
| 625 /* *_create_process may change status_symbol, if the process | |
| 626 is a kind of "fire-and-forget" (no I/O, unwaitable) */ | |
| 627 p->status_symbol = Qrun; | |
| 628 p->exit_code = 0; | |
| 629 | |
| 853 | 630 pid = PROCMETH (create_process, (p, argv, nargv, program, cur_dir, |
| 631 separate_err)); | |
| 428 | 632 |
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633 p->pid = make_fixnum (pid); |
| 863 | 634 if (PROCESS_READABLE_P (p)) |
| 853 | 635 event_stream_select_process (p, 1, 1); |
| 428 | 636 } |
| 637 | |
| 638 /* This function is the unwind_protect form for Fstart_process_internal. If | |
| 444 | 639 PROCESS doesn't have its pid set, then we know someone has signalled |
| 428 | 640 an error and the process wasn't started successfully, so we should |
| 641 remove it from the process list. */ | |
| 444 | 642 static void remove_process (Lisp_Object process); |
| 428 | 643 static Lisp_Object |
| 444 | 644 start_process_unwind (Lisp_Object process) |
| 428 | 645 { |
| 444 | 646 /* Was PROCESS started successfully? */ |
| 647 if (EQ (XPROCESS (process)->pid, Qnil)) | |
| 648 remove_process (process); | |
| 428 | 649 return Qnil; |
| 650 } | |
| 651 | |
| 652 DEFUN ("start-process-internal", Fstart_process_internal, 3, MANY, 0, /* | |
| 853 | 653 Internal function to start a program in a subprocess. |
| 654 Lisp callers should use `start-process' instead. | |
| 655 | |
| 656 Returns the process object for it. | |
| 428 | 657 Args are NAME BUFFER PROGRAM &rest PROGRAM-ARGS |
| 658 NAME is name for process. It is modified if necessary to make it unique. | |
| 659 BUFFER is the buffer or (buffer-name) to associate with the process. | |
| 660 Process output goes at end of that buffer, unless you specify | |
| 661 an output stream or filter function to handle the output. | |
| 662 BUFFER may be also nil, meaning that this process is not associated | |
| 853 | 663 with any buffer. |
| 664 BUFFER can also have the form (REAL-BUFFER STDERR-BUFFER); in that case, | |
| 665 REAL-BUFFER says what to do with standard output, as above, | |
| 666 while STDERR-BUFFER says what to do with standard error in the child. | |
| 667 STDERR-BUFFER may be nil (discard standard error output, unless a stderr | |
| 668 filter is set). Note that if you do not use this form at process creation, | |
| 669 stdout and stderr will be mixed in the output buffer, and this cannot be | |
| 670 changed, even by setting a stderr filter. | |
| 428 | 671 Third arg is program file name. It is searched for as in the shell. |
| 672 Remaining arguments are strings to give program as arguments. | |
| 853 | 673 |
| 674 Read and write coding systems for the process are determined from | |
| 675 `coding-system-for-read' and `coding-system-for-write' (intended as | |
| 676 overriding coding systems to be *bound* by Lisp code, not set), or | |
| 677 from `default-process-coding-system' if either or both are nil. You can | |
| 678 change the coding systems later on using `set-process-coding-system', | |
| 679 `set-process-input-coding-system', or `set-process-output-coding-system'. | |
| 680 | |
| 681 See also `set-process-filter' and `set-process-stderr-filter'. | |
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683 arguments: (NAME BUFFER PROGRAM &rest PROGRAM-ARGS) |
| 428 | 684 */ |
| 685 (int nargs, Lisp_Object *args)) | |
| 686 { | |
| 687 /* This function can call lisp */ | |
| 853 | 688 Lisp_Object buffer, stderr_buffer, name, program, process, current_dir; |
| 689 int separate_stderr; | |
| 428 | 690 Lisp_Object tem; |
| 910 | 691 int i; |
| 428 | 692 int speccount = specpdl_depth (); |
| 693 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 694 | |
| 695 name = args[0]; | |
| 696 buffer = args[1]; | |
| 697 program = args[2]; | |
| 698 current_dir = Qnil; | |
| 699 | |
| 700 /* Protect against various file handlers doing GCs below. */ | |
| 701 GCPRO3 (buffer, program, current_dir); | |
| 702 | |
| 853 | 703 if (CONSP (buffer)) |
| 704 { | |
| 705 if (!CONSP (XCDR (buffer))) | |
| 706 invalid_argument ("Invalid BUFFER argument to `start-process'", | |
| 707 buffer); | |
| 708 if (!NILP (XCDR (XCDR (buffer)))) | |
| 709 invalid_argument ("Invalid BUFFER argument to `start-process'", | |
| 710 buffer); | |
| 711 stderr_buffer = XCAR (XCDR (buffer)); | |
| 712 buffer = XCAR (buffer); | |
| 713 separate_stderr = 1; | |
| 714 } | |
| 715 else | |
| 716 { | |
| 717 stderr_buffer = Qnil; | |
| 718 separate_stderr = 0; | |
| 719 } | |
| 720 | |
| 428 | 721 if (!NILP (buffer)) |
| 722 buffer = Fget_buffer_create (buffer); | |
| 853 | 723 if (!NILP (stderr_buffer)) |
| 724 stderr_buffer = Fget_buffer_create (stderr_buffer); | |
| 428 | 725 |
| 726 CHECK_STRING (name); | |
| 727 CHECK_STRING (program); | |
| 910 | 728 for (i = 3; i < nargs; ++i) |
| 729 CHECK_STRING (args[i]); | |
| 428 | 730 |
| 731 /* Make sure that the child will be able to chdir to the current | |
| 502 | 732 buffer's current directory, or its unhandled equivalent. [[ We |
| 428 | 733 can't just have the child check for an error when it does the |
| 502 | 734 chdir, since it's in a vfork. ]] -- not any more, we don't use |
| 735 vfork. -ben | |
| 428 | 736 |
| 502 | 737 Note: These calls are spread out to insure that the return values |
| 738 of the calls (which may be newly-created strings) are properly | |
| 739 GC-protected. */ | |
| 428 | 740 current_dir = current_buffer->directory; |
| 502 | 741 /* If the current dir has no terminating slash, we'll get undesirable |
| 742 results, so put the slash back. */ | |
| 743 current_dir = Ffile_name_as_directory (current_dir); | |
| 428 | 744 current_dir = Funhandled_file_name_directory (current_dir); |
| 745 current_dir = expand_and_dir_to_file (current_dir, Qnil); | |
| 746 | |
| 747 #if 0 /* This loser breaks ange-ftp */ | |
| 748 /* dmoore - if you re-enable this code, you have to gcprotect | |
| 749 current_buffer through the above calls. */ | |
| 750 if (NILP (Ffile_accessible_directory_p (current_dir))) | |
| 563 | 751 signal_error (Qprocess_error, "Setting current directory", |
| 752 current_buffer->directory); | |
| 428 | 753 #endif /* 0 */ |
| 754 | |
| 755 /* If program file name is not absolute, search our path for it */ | |
| 826 | 756 if (!IS_DIRECTORY_SEP (string_byte (program, 0)) |
| 428 | 757 && !(XSTRING_LENGTH (program) > 1 |
| 826 | 758 && IS_DEVICE_SEP (string_byte (program, 1)))) |
| 428 | 759 { |
| 760 struct gcpro ngcpro1; | |
| 761 | |
| 762 tem = Qnil; | |
| 763 NGCPRO1 (tem); | |
| 764 locate_file (Vexec_path, program, Vlisp_EXEC_SUFFIXES, &tem, X_OK); | |
| 765 if (NILP (tem)) | |
| 563 | 766 signal_error (Qprocess_error, "Searching for program", program); |
| 428 | 767 program = Fexpand_file_name (tem, Qnil); |
| 768 NUNGCPRO; | |
| 769 } | |
| 770 else | |
| 771 { | |
| 442 | 772 /* we still need to canonicalize it and ensure it has the proper |
| 773 ending, e.g. .exe */ | |
| 774 struct gcpro ngcpro1; | |
| 775 | |
| 776 tem = Qnil; | |
| 777 NGCPRO1 (tem); | |
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778 locate_file (list1 (build_ascstring ("")), program, Vlisp_EXEC_SUFFIXES, |
| 442 | 779 &tem, X_OK); |
| 780 if (NILP (tem)) | |
| 563 | 781 signal_error (Qprocess_error, "Searching for program", program); |
| 442 | 782 program = tem; |
| 783 NUNGCPRO; | |
| 428 | 784 } |
| 785 | |
| 442 | 786 if (!NILP (Ffile_directory_p (program))) |
| 787 invalid_operation ("Specified program for new process is a directory", | |
| 788 program); | |
| 789 | |
| 444 | 790 process = make_process_internal (name); |
| 428 | 791 |
| 444 | 792 XPROCESS (process)->buffer = buffer; |
| 853 | 793 XPROCESS (process)->stderr_buffer = stderr_buffer; |
| 794 XPROCESS (process)->separate_stderr = separate_stderr; | |
| 814 | 795 XPROCESS (process)->command = Flist (nargs - 2, args + 2); |
| 428 | 796 |
| 797 /* Make the process marker point into the process buffer (if any). */ | |
| 798 if (!NILP (buffer)) | |
| 444 | 799 Fset_marker (XPROCESS (process)->mark, |
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800 make_fixnum (BUF_ZV (XBUFFER (buffer))), buffer); |
| 853 | 801 if (!NILP (stderr_buffer)) |
| 802 Fset_marker (XPROCESS (process)->stderr_mark, | |
|
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803 make_fixnum (BUF_ZV (XBUFFER (stderr_buffer))), stderr_buffer); |
| 428 | 804 |
| 805 /* If an error occurs and we can't start the process, we want to | |
| 806 remove it from the process list. This means that each error | |
| 807 check in create_process doesn't need to call remove_process | |
| 808 itself; it's all taken care of here. */ | |
| 444 | 809 record_unwind_protect (start_process_unwind, process); |
| 428 | 810 |
| 853 | 811 create_process (process, args + 3, nargs - 3, program, current_dir, |
| 812 separate_stderr); | |
| 428 | 813 |
| 814 UNGCPRO; | |
| 771 | 815 return unbind_to_1 (speccount, process); |
| 428 | 816 } |
| 817 | |
| 818 | |
| 819 #ifdef HAVE_SOCKETS | |
| 820 | |
| 821 | |
| 822 /* #### The network support is fairly synthetical. What we actually | |
| 823 need is a single function, which supports all datagram, stream and | |
| 824 packet stream connections, arbitrary protocol families should they | |
| 825 be supported by the target system, multicast groups, in both data | |
| 826 and control rooted/nonrooted flavors, service quality etc whatever | |
| 827 is supported by the underlying network. | |
| 828 | |
| 829 It must accept a property list describing the connection. The current | |
| 830 functions must then go to lisp and provide a suitable list for the | |
| 831 generalized connection function. | |
| 832 | |
| 833 Both UNIX and Win32 support BSD sockets, and there are many extensions | |
| 834 available (Sockets 2 spec). | |
| 835 | |
| 836 A todo is define a consistent set of properties abstracting a | |
| 837 network connection. -kkm | |
| 838 */ | |
| 839 | |
| 840 | |
| 841 /* open a TCP network connection to a given HOST/SERVICE. Treated | |
| 842 exactly like a normal process when reading and writing. Only | |
| 843 differences are in status display and process deletion. A network | |
| 844 connection has no PID; you cannot signal it. All you can do is | |
| 845 deactivate and close it via delete-process */ | |
| 846 | |
| 442 | 847 DEFUN ("open-network-stream-internal", Fopen_network_stream_internal, 4, 5, |
| 848 0, /* | |
| 428 | 849 Open a TCP connection for a service to a host. |
| 444 | 850 Return a process object to represent the connection. |
| 428 | 851 Input and output work as for subprocesses; `delete-process' closes it. |
| 852 | |
| 853 NAME is name for process. It is modified if necessary to make it unique. | |
| 854 BUFFER is the buffer (or buffer-name) to associate with the process. | |
| 855 Process output goes at end of that buffer, unless you specify | |
| 856 an output stream or filter function to handle the output. | |
| 857 BUFFER may also be nil, meaning that this process is not associated | |
| 858 with any buffer. | |
| 444 | 859 Third arg HOST (a string) is the name of the host to connect to, |
| 860 or its IP address. | |
| 861 Fourth arg SERVICE is the name of the service desired (a string), | |
| 862 or an integer specifying a port number to connect to. | |
| 3025 | 863 Optional fifth arg PROTOCOL is a network protocol. Currently only `tcp' |
| 864 (Transmission Control Protocol) and `udp' (User Datagram Protocol) are | |
| 865 supported. When omitted, `tcp' is assumed. | |
| 428 | 866 |
| 442 | 867 Output via `process-send-string' and input via buffer or filter (see |
| 428 | 868 `set-process-filter') are stream-oriented. That means UDP datagrams are |
| 869 not guaranteed to be sent and received in discrete packets. (But small | |
| 870 datagrams around 500 bytes that are not truncated by `process-send-string' | |
| 444 | 871 are usually fine.) Note further that the UDP protocol does not guard |
| 872 against lost packets. | |
| 428 | 873 */ |
| 874 (name, buffer, host, service, protocol)) | |
| 875 { | |
| 876 /* This function can GC */ | |
| 444 | 877 Lisp_Object process = Qnil; |
| 428 | 878 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, ngcpro1; |
| 879 void *inch, *outch; | |
| 880 | |
| 881 GCPRO5 (name, buffer, host, service, protocol); | |
| 882 CHECK_STRING (name); | |
| 883 | |
| 771 | 884 if (NILP (protocol)) |
| 428 | 885 protocol = Qtcp; |
| 886 else | |
| 887 CHECK_SYMBOL (protocol); | |
| 888 | |
| 889 /* Since this code is inside HAVE_SOCKETS, existence of | |
| 890 open_network_stream is mandatory */ | |
| 891 PROCMETH (open_network_stream, (name, host, service, protocol, | |
| 892 &inch, &outch)); | |
| 893 | |
| 894 if (!NILP (buffer)) | |
| 895 buffer = Fget_buffer_create (buffer); | |
| 444 | 896 process = make_process_internal (name); |
| 897 NGCPRO1 (process); | |
| 428 | 898 |
| 444 | 899 XPROCESS (process)->pid = Fcons (service, host); |
| 900 XPROCESS (process)->buffer = buffer; | |
| 771 | 901 init_process_io_handles (XPROCESS (process), (void *) inch, (void *) outch, |
| 853 | 902 (void *) -1, |
| 428 | 903 STREAM_NETWORK_CONNECTION); |
| 904 | |
| 853 | 905 event_stream_select_process (XPROCESS (process), 1, 1); |
| 428 | 906 |
| 1204 | 907 NUNGCPRO; |
| 428 | 908 UNGCPRO; |
| 444 | 909 return process; |
| 428 | 910 } |
| 911 | |
| 912 #ifdef HAVE_MULTICAST | |
| 913 | |
| 914 DEFUN ("open-multicast-group-internal", Fopen_multicast_group_internal, 5, 5, 0, /* | |
| 915 Open a multicast connection on the specified dest/port/ttl. | |
| 444 | 916 Return a process object to represent the connection. |
| 428 | 917 Input and output work as for subprocesses; `delete-process' closes it. |
| 918 | |
| 919 NAME is name for process. It is modified if necessary to make it unique. | |
| 920 BUFFER is the buffer (or buffer-name) to associate with the process. | |
| 921 Process output goes at end of that buffer, unless you specify | |
| 922 an output stream or filter function to handle the output. | |
| 923 BUFFER may also be nil, meaning that this process is not associated | |
| 924 with any buffer. | |
| 925 Third, fourth and fifth args are the multicast destination group, port and ttl. | |
| 926 dest must be an internet address between 224.0.0.0 and 239.255.255.255 | |
| 927 port is a communication port like in traditional unicast | |
| 928 ttl is the time-to-live (15 for site, 63 for region and 127 for world) | |
| 929 */ | |
| 930 (name, buffer, dest, port, ttl)) | |
| 931 { | |
| 932 /* This function can GC */ | |
| 444 | 933 Lisp_Object process = Qnil; |
| 428 | 934 struct gcpro gcpro1; |
| 935 void *inch, *outch; | |
| 936 | |
| 937 CHECK_STRING (name); | |
| 938 | |
| 939 /* Since this code is inside HAVE_MULTICAST, existence of | |
| 771 | 940 open_multicast_group is mandatory */ |
| 428 | 941 PROCMETH (open_multicast_group, (name, dest, port, ttl, |
| 942 &inch, &outch)); | |
| 943 | |
| 944 if (!NILP (buffer)) | |
| 945 buffer = Fget_buffer_create (buffer); | |
| 946 | |
| 444 | 947 process = make_process_internal (name); |
| 948 GCPRO1 (process); | |
| 428 | 949 |
| 444 | 950 XPROCESS (process)->pid = Fcons (port, dest); |
| 951 XPROCESS (process)->buffer = buffer; | |
| 853 | 952 init_process_io_handles (XPROCESS (process), (void *) inch, (void *) outch, |
| 953 (void *) -1, | |
| 428 | 954 STREAM_NETWORK_CONNECTION); |
| 955 | |
| 853 | 956 event_stream_select_process (XPROCESS (process), 1, 1); |
| 428 | 957 |
| 958 UNGCPRO; | |
| 444 | 959 return process; |
| 428 | 960 } |
| 961 #endif /* HAVE_MULTICAST */ | |
| 962 | |
| 963 #endif /* HAVE_SOCKETS */ | |
| 964 | |
| 965 Lisp_Object | |
| 966 canonicalize_host_name (Lisp_Object host) | |
| 967 { | |
| 968 return PROCMETH_OR_GIVEN (canonicalize_host_name, (host), host); | |
| 969 } | |
| 970 | |
| 971 | |
| 972 DEFUN ("set-process-window-size", Fset_process_window_size, 3, 3, 0, /* | |
| 973 Tell PROCESS that it has logical window size HEIGHT and WIDTH. | |
| 974 */ | |
| 444 | 975 (process, height, width)) |
| 428 | 976 { |
| 444 | 977 CHECK_PROCESS (process); |
|
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978 check_integer_range (height, Qzero, make_integer (MOST_POSITIVE_FIXNUM)); |
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979 check_integer_range (width, Qzero, make_integer (MOST_POSITIVE_FIXNUM)); |
| 428 | 980 return |
| 444 | 981 MAYBE_INT_PROCMETH (set_window_size, |
|
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982 (XPROCESS (process), XFIXNUM (height), XFIXNUM (width))) <= 0 |
| 428 | 983 ? Qnil : Qt; |
| 984 } | |
| 985 | |
| 986 | |
| 987 /************************************************************************/ | |
| 988 /* Process I/O */ | |
| 989 /************************************************************************/ | |
| 990 | |
| 844 | 991 /* Set up PROCESS's buffer for insertion of process data at PROCESS's |
| 992 mark. | |
| 993 | |
| 994 Sets the current buffer to PROCESS's buffer, inhibits read only, | |
| 995 remembers current point, sets point to PROCESS'S mark, widens if | |
| 996 necessary. | |
| 997 */ | |
| 998 static int | |
| 853 | 999 process_setup_for_insertion (Lisp_Object process, int read_stderr) |
| 844 | 1000 { |
| 1001 Lisp_Process *p = XPROCESS (process); | |
| 1002 int spec = specpdl_depth (); | |
| 853 | 1003 Lisp_Object buffer = read_stderr ? p->stderr_buffer : p->buffer; |
| 1004 Lisp_Object mark = read_stderr ? p->stderr_mark : p->mark; | |
| 1005 struct buffer *buf = XBUFFER (buffer); | |
| 844 | 1006 Charbpos output_pt; |
| 1007 | |
| 1008 if (buf != current_buffer) | |
| 1009 { | |
| 1010 record_unwind_protect (save_current_buffer_restore, | |
| 1011 Fcurrent_buffer ()); | |
| 1012 set_buffer_internal (buf); | |
| 1013 } | |
| 1014 | |
| 1015 record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
| 1016 specbind (Qinhibit_read_only, Qt); | |
| 854 | 1017 |
| 844 | 1018 /* Insert new output into buffer |
| 1019 at the current end-of-output marker, | |
| 1020 thus preserving logical ordering of input and output. */ | |
| 853 | 1021 if (XMARKER (mark)->buffer) |
| 1022 output_pt = marker_position (mark); | |
| 844 | 1023 else |
| 1024 output_pt = BUF_ZV (buf); | |
| 1025 | |
| 1026 /* If the output marker is outside of the visible region, save | |
| 1027 the restriction and widen. */ | |
| 1028 if (! (BUF_BEGV (buf) <= output_pt && output_pt <= BUF_ZV (buf))) | |
| 1029 { | |
| 1030 record_unwind_protect (save_restriction_restore, | |
| 1031 save_restriction_save (buf)); | |
| 1032 Fwiden (wrap_buffer (buf)); | |
| 1033 } | |
| 1034 | |
| 1035 BUF_SET_PT (buf, output_pt); | |
| 1036 return spec; | |
| 1037 } | |
| 1038 | |
| 428 | 1039 /* Read pending output from the process channel, |
| 1040 starting with our buffered-ahead character if we have one. | |
| 1041 Yield number of characters read. | |
| 1042 | |
| 1043 This function reads at most 1024 bytes. | |
| 1044 If you want to read all available subprocess output, | |
| 1045 you must call it repeatedly until it returns zero. */ | |
| 1046 | |
| 1047 Charcount | |
| 853 | 1048 read_process_output (Lisp_Object process, int read_stderr) |
| 428 | 1049 { |
| 1050 /* This function can GC */ | |
| 1051 Bytecount nbytes, nchars; | |
| 867 | 1052 Ibyte chars[1025]; |
| 428 | 1053 Lisp_Object outstream; |
| 444 | 1054 Lisp_Process *p = XPROCESS (process); |
| 853 | 1055 Lisp_Object filter = read_stderr ? p->stderr_filter : p->filter; |
| 1056 Lisp_Object buffer = read_stderr ? p->stderr_buffer : p->buffer; | |
| 1057 Lisp_Object mark = read_stderr ? p->stderr_mark : p->mark; | |
| 428 | 1058 |
| 1059 /* If there is a lot of output from the subprocess, the loop in | |
| 1060 execute_internal_event() might call read_process_output() more | |
| 1061 than once. If the filter that was executed from one of these | |
| 1062 calls set the filter to t, we have to stop now. Return -1 rather | |
| 1063 than 0 so execute_internal_event() doesn't close the process. | |
| 1064 Really, the loop in execute_internal_event() should check itself | |
| 1065 for a process-filter change, like in status_notify(); but the | |
| 1066 struct Lisp_Process is not exported outside of this file. */ | |
| 863 | 1067 if (!PROCESS_READABLE_P (p)) |
| 853 | 1068 { |
| 1069 errno = 0; | |
| 1070 return -1; /* already closed */ | |
| 1071 } | |
| 428 | 1072 |
| 853 | 1073 if (!NILP (filter) && (p->filter_does_read)) |
| 428 | 1074 { |
| 1075 Lisp_Object filter_result; | |
| 1076 | |
| 1077 /* Some weird FSFmacs crap here with | |
| 853 | 1078 Vdeactivate_mark and current_buffer->keymap. |
| 1079 Some FSF junk with running_asynch_code, to preserve the match | |
| 1080 data. Not necessary because we don't call process filters | |
| 1081 asynchronously (i.e. from within QUIT). */ | |
| 1082 /* Don't catch errors here; we're not in any critical code. */ | |
| 1083 filter_result = call2 (filter, process, Qnil); | |
|
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1084 CHECK_FIXNUM (filter_result); |
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1085 return XFIXNUM (filter_result); |
| 428 | 1086 } |
| 1087 | |
| 853 | 1088 nbytes = Lstream_read (read_stderr ? XLSTREAM (DATA_ERRSTREAM (p)) : |
| 1089 XLSTREAM (DATA_INSTREAM (p)), chars, | |
| 771 | 1090 sizeof (chars) - 1); |
| 428 | 1091 if (nbytes <= 0) return nbytes; |
| 1092 | |
| 771 | 1093 if (debug_process_io) |
| 1094 { | |
| 1095 chars[nbytes] = '\0'; | |
| 1096 stderr_out ("Read: %s\n", chars); | |
| 1097 } | |
| 1098 | |
| 1099 /* !!#### if the coding system changed as a result of reading, we | |
| 1100 need to change the output coding system accordingly. */ | |
| 428 | 1101 nchars = bytecount_to_charcount (chars, nbytes); |
| 853 | 1102 outstream = filter; |
| 428 | 1103 if (!NILP (outstream)) |
| 1104 { | |
| 853 | 1105 /* Some FSF junk with running_asynch_code, to preserve the match |
| 1106 data. Not necessary because we don't call process filters | |
| 1107 asynchronously (i.e. from within QUIT). */ | |
| 1108 /* Don't catch errors here; we're not in any critical code. */ | |
| 1109 call2 (outstream, process, make_string (chars, nbytes)); | |
| 428 | 1110 return nchars; |
| 1111 } | |
| 1112 | |
| 1113 /* If no filter, write into buffer if it isn't dead. */ | |
| 853 | 1114 if (!NILP (buffer) && BUFFER_LIVE_P (XBUFFER (buffer))) |
| 428 | 1115 { |
| 844 | 1116 struct gcpro gcpro1; |
| 853 | 1117 struct buffer *buf = XBUFFER (buffer); |
| 1118 int spec = process_setup_for_insertion (process, read_stderr); | |
| 428 | 1119 |
| 844 | 1120 GCPRO1 (process); |
| 428 | 1121 |
| 1122 #if 0 | |
| 1123 /* This screws up initial display of the window. jla */ | |
| 1124 | |
| 1125 /* Insert before markers in case we are inserting where | |
| 1126 the buffer's mark is, and the user's next command is Meta-y. */ | |
| 1127 buffer_insert_raw_string_1 (buf, -1, chars, | |
| 1128 nbytes, INSDEL_BEFORE_MARKERS); | |
| 1129 #else | |
| 1130 buffer_insert_raw_string (buf, chars, nbytes); | |
| 1131 #endif | |
| 1132 | |
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1133 Fset_marker (mark, make_fixnum (BUF_PT (buf)), buffer); |
| 853 | 1134 |
| 428 | 1135 MARK_MODELINE_CHANGED; |
| 844 | 1136 unbind_to (spec); |
| 428 | 1137 UNGCPRO; |
| 1138 } | |
| 1139 return nchars; | |
| 1140 } | |
| 853 | 1141 |
| 1142 int | |
| 1143 process_has_separate_stderr (Lisp_Object process) | |
| 1144 { | |
| 1145 return XPROCESS (process)->separate_stderr; | |
| 1146 } | |
| 1147 | |
| 859 | 1148 DEFUN ("process-has-separate-stderr-p", Fprocess_has_separate_stderr_p, 1, 1, |
| 1149 0, /* | |
| 1150 Return non-nil if process has stderr separate from stdout. | |
| 1151 */ | |
| 1152 (process)) | |
| 1153 { | |
| 1154 CHECK_PROCESS (process); | |
| 1155 return process_has_separate_stderr (process) ? Qt : Qnil; | |
| 1156 } | |
| 1157 | |
| 428 | 1158 |
| 1159 /* Sending data to subprocess */ | |
| 1160 | |
| 444 | 1161 /* send some data to process PROCESS. If NONRELOCATABLE is non-NULL, it |
| 428 | 1162 specifies the address of the data. Otherwise, the data comes from the |
| 1163 object RELOCATABLE (either a string or a buffer). START and LEN | |
| 1164 specify the offset and length of the data to send. | |
| 1165 | |
| 665 | 1166 Note that START and LEN are in Charbpos's if RELOCATABLE is a buffer, |
| 428 | 1167 and in Bytecounts otherwise. */ |
| 1168 | |
| 1169 void | |
| 444 | 1170 send_process (Lisp_Object process, |
| 867 | 1171 Lisp_Object relocatable, const Ibyte *nonrelocatable, |
| 428 | 1172 int start, int len) |
| 1173 { | |
| 1174 /* This function can GC */ | |
| 1175 struct gcpro gcpro1, gcpro2; | |
| 1176 Lisp_Object lstream = Qnil; | |
| 1177 | |
| 444 | 1178 GCPRO2 (process, lstream); |
| 428 | 1179 |
| 444 | 1180 if (NILP (DATA_OUTSTREAM (XPROCESS (process)))) |
| 563 | 1181 invalid_operation ("Process not open for writing", process); |
| 428 | 1182 |
| 1183 if (nonrelocatable) | |
| 1184 lstream = | |
| 1185 make_fixed_buffer_input_stream (nonrelocatable + start, len); | |
| 1186 else if (BUFFERP (relocatable)) | |
| 1187 lstream = make_lisp_buffer_input_stream (XBUFFER (relocatable), | |
| 1188 start, start + len, 0); | |
| 1189 else | |
| 1190 lstream = make_lisp_string_input_stream (relocatable, start, len); | |
| 1191 | |
| 771 | 1192 if (debug_process_io) |
| 1193 { | |
| 1194 if (nonrelocatable) | |
| 1195 stderr_out ("Writing: %s\n", nonrelocatable); | |
| 1196 else | |
| 1197 { | |
| 1198 stderr_out ("Writing: "); | |
| 1199 print_internal (relocatable, Qexternal_debugging_output, 0); | |
| 1200 } | |
| 1201 } | |
| 1202 | |
| 444 | 1203 PROCMETH (send_process, (process, XLSTREAM (lstream))); |
| 428 | 1204 |
| 1205 UNGCPRO; | |
| 1206 Lstream_delete (XLSTREAM (lstream)); | |
| 1207 } | |
| 1208 | |
| 1209 DEFUN ("process-tty-name", Fprocess_tty_name, 1, 1, 0, /* | |
| 1210 Return the name of the terminal PROCESS uses, or nil if none. | |
| 1211 This is the terminal that the process itself reads and writes on, | |
| 1212 not the name of the pty that Emacs uses to talk with that terminal. | |
| 1213 */ | |
| 444 | 1214 (process)) |
| 428 | 1215 { |
| 444 | 1216 CHECK_PROCESS (process); |
| 1204 | 1217 return XPROCESS (process)->tty_name; |
| 428 | 1218 } |
| 1219 | |
| 1220 DEFUN ("set-process-buffer", Fset_process_buffer, 2, 2, 0, /* | |
| 1221 Set buffer associated with PROCESS to BUFFER (a buffer, or nil). | |
| 2297 | 1222 Output from PROCESS is inserted in this buffer unless PROCESS has a filter. |
| 428 | 1223 */ |
| 444 | 1224 (process, buffer)) |
| 428 | 1225 { |
| 444 | 1226 CHECK_PROCESS (process); |
| 428 | 1227 if (!NILP (buffer)) |
| 1228 CHECK_BUFFER (buffer); | |
| 444 | 1229 XPROCESS (process)->buffer = buffer; |
| 428 | 1230 return buffer; |
| 1231 } | |
| 1232 | |
| 1233 DEFUN ("process-buffer", Fprocess_buffer, 1, 1, 0, /* | |
| 1234 Return the buffer PROCESS is associated with. | |
| 2297 | 1235 Output from PROCESS is inserted in this buffer unless PROCESS has a filter. |
| 1236 Set the buffer with `set-process-buffer'. | |
| 428 | 1237 */ |
| 444 | 1238 (process)) |
| 428 | 1239 { |
| 444 | 1240 CHECK_PROCESS (process); |
| 1241 return XPROCESS (process)->buffer; | |
| 428 | 1242 } |
| 1243 | |
| 853 | 1244 DEFUN ("set-process-stderr-buffer", Fset_process_stderr_buffer, 2, 2, 0, /* |
| 2297 | 1245 Output from the stderr of PROCESS is inserted in this buffer unless |
| 1246 PROCESS has a stderr filter. | |
| 853 | 1247 Set stderr buffer associated with PROCESS to BUFFER (a buffer, or nil). |
| 1248 */ | |
| 1249 (process, buffer)) | |
| 1250 { | |
| 1251 CHECK_PROCESS (process); | |
| 1252 if (!XPROCESS (process)->separate_stderr) | |
| 1253 invalid_change ("stdout and stderr not separate", process); | |
| 1254 if (!NILP (buffer)) | |
| 1255 CHECK_BUFFER (buffer); | |
| 1256 XPROCESS (process)->stderr_buffer = buffer; | |
| 1257 return buffer; | |
| 1258 } | |
| 1259 | |
| 1260 DEFUN ("process-stderr-buffer", Fprocess_stderr_buffer, 1, 1, 0, /* | |
| 1261 Return the stderr buffer PROCESS is associated with. | |
| 2297 | 1262 Output from the stderr of PROCESS is inserted in this buffer unless PROCESS |
| 1263 has a stderr filter. Set the buffer with `set-process-stderr-buffer'. | |
| 853 | 1264 */ |
| 1265 (process)) | |
| 1266 { | |
| 1267 CHECK_PROCESS (process); | |
| 1268 if (!XPROCESS (process)->separate_stderr) | |
| 1269 invalid_change ("stdout and stderr not separate", process); | |
| 1270 return XPROCESS (process)->stderr_buffer; | |
| 1271 } | |
| 1272 | |
| 428 | 1273 DEFUN ("process-mark", Fprocess_mark, 1, 1, 0, /* |
| 1274 Return the marker for the end of the last output from PROCESS. | |
| 1275 */ | |
| 444 | 1276 (process)) |
| 428 | 1277 { |
| 444 | 1278 CHECK_PROCESS (process); |
| 1279 return XPROCESS (process)->mark; | |
| 428 | 1280 } |
| 1281 | |
| 853 | 1282 DEFUN ("process-stderr-mark", Fprocess_stderr_mark, 1, 1, 0, /* |
| 1283 Return the marker for the end of the last stderr output from PROCESS. | |
| 1284 */ | |
| 1285 (process)) | |
| 1286 { | |
| 1287 CHECK_PROCESS (process); | |
| 1288 if (!XPROCESS (process)->separate_stderr) | |
| 1289 invalid_operation ("stdout and stderr not separate", process); | |
| 1290 return XPROCESS (process)->stderr_mark; | |
| 1291 } | |
| 1292 | |
| 428 | 1293 void |
| 853 | 1294 set_process_filter (Lisp_Object process, Lisp_Object filter, |
| 1295 int filter_does_read, int set_stderr) | |
| 428 | 1296 { |
| 444 | 1297 CHECK_PROCESS (process); |
| 853 | 1298 if (set_stderr && !XPROCESS (process)->separate_stderr) |
| 1299 invalid_change ("stdout and stderr not separate", process); | |
| 863 | 1300 if (PROCESS_READABLE_P (XPROCESS (process))) |
| 853 | 1301 { |
| 1302 if (EQ (filter, Qt)) | |
| 1303 event_stream_unselect_process (XPROCESS (process), !set_stderr, | |
| 1304 set_stderr); | |
| 1305 else | |
| 1306 event_stream_select_process (XPROCESS (process), !set_stderr, | |
| 1307 set_stderr); | |
| 1308 } | |
| 428 | 1309 |
| 853 | 1310 if (set_stderr) |
| 1311 XPROCESS (process)->stderr_filter = filter; | |
| 1312 else | |
| 1313 XPROCESS (process)->filter = filter; | |
| 444 | 1314 XPROCESS (process)->filter_does_read = filter_does_read; |
| 428 | 1315 } |
| 1316 | |
| 1317 DEFUN ("set-process-filter", Fset_process_filter, 2, 2, 0, /* | |
| 1318 Give PROCESS the filter function FILTER; nil means no filter. | |
| 853 | 1319 t means stop accepting output from the process. (If process was created |
| 854 | 1320 with |
| 853 | 1321 When a process has a filter, each time it does output |
| 1322 the entire string of output is passed to the filter. | |
| 1323 The filter gets two arguments: the process and the string of output. | |
| 1324 If the process has a filter, its buffer is not used for output. | |
| 1325 */ | |
| 1326 (process, filter)) | |
| 1327 { | |
| 1328 set_process_filter (process, filter, 0, 0); | |
| 1329 return filter; | |
| 1330 } | |
| 1331 | |
| 1332 DEFUN ("set-process-stderr-filter", Fset_process_stderr_filter, 2, 2, 0, /* | |
| 1333 Give PROCESS the stderr filter function FILTER; nil means no filter. | |
| 428 | 1334 t means stop accepting output from the process. |
| 1335 When a process has a filter, each time it does output | |
| 1336 the entire string of output is passed to the filter. | |
| 1337 The filter gets two arguments: the process and the string of output. | |
| 1338 If the process has a filter, its buffer is not used for output. | |
| 1339 */ | |
| 444 | 1340 (process, filter)) |
| 428 | 1341 { |
| 853 | 1342 set_process_filter (process, filter, 0, 1); |
| 428 | 1343 return filter; |
| 1344 } | |
| 1345 | |
| 1346 DEFUN ("process-filter", Fprocess_filter, 1, 1, 0, /* | |
| 1347 Return the filter function of PROCESS; nil if none. | |
| 1348 See `set-process-filter' for more info on filter functions. | |
| 1349 */ | |
| 444 | 1350 (process)) |
| 428 | 1351 { |
| 444 | 1352 CHECK_PROCESS (process); |
| 1353 return XPROCESS (process)->filter; | |
| 428 | 1354 } |
| 1355 | |
| 853 | 1356 DEFUN ("process-stderr-filter", Fprocess_stderr_filter, 1, 1, 0, /* |
| 1357 Return the filter function of PROCESS; nil if none. | |
| 1358 See `set-process-stderr-filter' for more info on filter functions. | |
| 1359 */ | |
| 1360 (process)) | |
| 1361 { | |
| 1362 CHECK_PROCESS (process); | |
| 1363 if (!XPROCESS (process)->separate_stderr) | |
| 1364 invalid_operation ("stdout and stderr not separate", process); | |
| 1365 return XPROCESS (process)->stderr_filter; | |
| 1366 } | |
| 1367 | |
| 442 | 1368 DEFUN ("process-send-region", Fprocess_send_region, 3, 4, 0, /* |
| 1369 Send current contents of the region between START and END as input to PROCESS. | |
| 444 | 1370 PROCESS may be a process or the name of a process, or a buffer or the |
| 1371 name of a buffer, in which case the buffer's process is used. If it | |
| 1372 is nil, the current buffer's process is used. | |
| 442 | 1373 BUFFER specifies the buffer to look in; if nil, the current buffer is used. |
| 853 | 1374 If the region is more than 100 or so characters long, it may be sent in |
| 1375 several chunks. This may happen even for shorter regions. Output | |
| 444 | 1376 from processes can arrive in between chunks. |
| 428 | 1377 */ |
| 442 | 1378 (process, start, end, buffer)) |
| 428 | 1379 { |
| 1380 /* This function can GC */ | |
| 665 | 1381 Charbpos bstart, bend; |
| 442 | 1382 struct buffer *buf = decode_buffer (buffer, 0); |
| 428 | 1383 |
| 793 | 1384 buffer = wrap_buffer (buf); |
| 444 | 1385 process = get_process (process); |
| 1386 get_buffer_range_char (buf, start, end, &bstart, &bend, 0); | |
| 442 | 1387 |
| 444 | 1388 send_process (process, buffer, 0, bstart, bend - bstart); |
| 428 | 1389 return Qnil; |
| 1390 } | |
| 1391 | |
| 1392 DEFUN ("process-send-string", Fprocess_send_string, 2, 4, 0, /* | |
| 1393 Send PROCESS the contents of STRING as input. | |
| 444 | 1394 PROCESS may be a process or the name of a process, or a buffer or the |
| 1395 name of a buffer, in which case the buffer's process is used. If it | |
| 1396 is nil, the current buffer's process is used. | |
| 1397 Optional arguments START and END specify part of STRING; see `substring'. | |
| 1398 If STRING is more than 100 or so characters long, it may be sent in | |
| 1399 several chunks. This may happen even for shorter strings. Output | |
| 1400 from processes can arrive in between chunks. | |
| 428 | 1401 */ |
| 444 | 1402 (process, string, start, end)) |
| 428 | 1403 { |
| 1404 /* This function can GC */ | |
| 444 | 1405 Bytecount bstart, bend; |
| 428 | 1406 |
| 444 | 1407 process = get_process (process); |
| 428 | 1408 CHECK_STRING (string); |
| 444 | 1409 get_string_range_byte (string, start, end, &bstart, &bend, |
| 428 | 1410 GB_HISTORICAL_STRING_BEHAVIOR); |
| 1411 | |
| 444 | 1412 send_process (process, string, 0, bstart, bend - bstart); |
| 428 | 1413 return Qnil; |
| 1414 } | |
| 1415 | |
| 1416 | |
| 1417 DEFUN ("process-input-coding-system", Fprocess_input_coding_system, 1, 1, 0, /* | |
| 1418 Return PROCESS's input coding system. | |
| 1419 */ | |
| 1420 (process)) | |
| 1421 { | |
| 1422 process = get_process (process); | |
| 863 | 1423 CHECK_READABLE_PROCESS (process); |
| 771 | 1424 return (coding_stream_detected_coding_system |
| 1425 (XLSTREAM (XPROCESS (process)->coding_instream))); | |
| 428 | 1426 } |
| 1427 | |
| 1428 DEFUN ("process-output-coding-system", Fprocess_output_coding_system, 1, 1, 0, /* | |
| 1429 Return PROCESS's output coding system. | |
| 1430 */ | |
| 1431 (process)) | |
| 1432 { | |
| 1433 process = get_process (process); | |
| 440 | 1434 CHECK_LIVE_PROCESS (process); |
| 771 | 1435 return (coding_stream_coding_system |
| 1436 (XLSTREAM (XPROCESS (process)->coding_outstream))); | |
| 428 | 1437 } |
| 1438 | |
| 1439 DEFUN ("process-coding-system", Fprocess_coding_system, 1, 1, 0, /* | |
| 1440 Return a pair of coding-system for decoding and encoding of PROCESS. | |
| 1441 */ | |
| 1442 (process)) | |
| 1443 { | |
| 1444 process = get_process (process); | |
| 863 | 1445 CHECK_READABLE_PROCESS (process); |
| 771 | 1446 return Fcons (coding_stream_detected_coding_system |
| 428 | 1447 (XLSTREAM (XPROCESS (process)->coding_instream)), |
| 771 | 1448 coding_stream_coding_system |
| 428 | 1449 (XLSTREAM (XPROCESS (process)->coding_outstream))); |
| 1450 } | |
| 1451 | |
| 1452 DEFUN ("set-process-input-coding-system", Fset_process_input_coding_system, | |
| 1453 2, 2, 0, /* | |
| 1454 Set PROCESS's input coding system to CODESYS. | |
| 771 | 1455 This is used for reading data from PROCESS. |
| 428 | 1456 */ |
| 1457 (process, codesys)) | |
| 1458 { | |
| 771 | 1459 codesys = get_coding_system_for_text_file (codesys, 1); |
| 428 | 1460 process = get_process (process); |
| 863 | 1461 CHECK_READABLE_PROCESS (process); |
| 440 | 1462 |
| 771 | 1463 set_coding_stream_coding_system |
| 428 | 1464 (XLSTREAM (XPROCESS (process)->coding_instream), codesys); |
| 1465 return Qnil; | |
| 1466 } | |
| 1467 | |
| 1468 DEFUN ("set-process-output-coding-system", Fset_process_output_coding_system, | |
| 1469 2, 2, 0, /* | |
| 1470 Set PROCESS's output coding system to CODESYS. | |
| 771 | 1471 This is used for writing data to PROCESS. |
| 428 | 1472 */ |
| 1473 (process, codesys)) | |
| 1474 { | |
| 771 | 1475 codesys = get_coding_system_for_text_file (codesys, 0); |
| 428 | 1476 process = get_process (process); |
| 440 | 1477 CHECK_LIVE_PROCESS (process); |
| 1478 | |
| 771 | 1479 set_coding_stream_coding_system |
| 428 | 1480 (XLSTREAM (XPROCESS (process)->coding_outstream), codesys); |
| 1481 return Qnil; | |
| 1482 } | |
| 1483 | |
| 1484 DEFUN ("set-process-coding-system", Fset_process_coding_system, | |
| 1485 1, 3, 0, /* | |
| 1486 Set coding-systems of PROCESS to DECODING and ENCODING. | |
| 440 | 1487 DECODING will be used to decode subprocess output and ENCODING to |
| 1488 encode subprocess input. | |
| 428 | 1489 */ |
| 1490 (process, decoding, encoding)) | |
| 1491 { | |
| 1492 if (!NILP (decoding)) | |
| 1493 Fset_process_input_coding_system (process, decoding); | |
| 1494 | |
| 1495 if (!NILP (encoding)) | |
| 1496 Fset_process_output_coding_system (process, encoding); | |
| 1497 | |
| 1498 return Qnil; | |
| 1499 } | |
| 1500 | |
| 1501 | |
| 1502 /************************************************************************/ | |
| 1503 /* process status */ | |
| 1504 /************************************************************************/ | |
| 1505 | |
| 1506 static Lisp_Object | |
| 1507 exec_sentinel_unwind (Lisp_Object datum) | |
| 1508 { | |
| 853 | 1509 XPROCESS (XCAR (datum))->sentinel = XCDR (datum); |
| 1510 free_cons (datum); | |
| 428 | 1511 return Qnil; |
| 1512 } | |
| 1513 | |
| 1514 static void | |
| 444 | 1515 exec_sentinel (Lisp_Object process, Lisp_Object reason) |
| 428 | 1516 { |
| 1517 /* This function can GC */ | |
| 1518 int speccount = specpdl_depth (); | |
| 444 | 1519 Lisp_Process *p = XPROCESS (process); |
| 428 | 1520 Lisp_Object sentinel = p->sentinel; |
| 1521 | |
| 1522 if (NILP (sentinel)) | |
| 1523 return; | |
| 1524 | |
| 1525 /* Some weird FSFmacs crap here with | |
| 1526 Vdeactivate_mark and current_buffer->keymap */ | |
| 1527 | |
| 853 | 1528 /* Some FSF junk with running_asynch_code, to preserve the match |
| 1529 data. Not necessary because we don't call process filters | |
| 1530 asynchronously (i.e. from within QUIT). */ | |
| 1531 | |
| 428 | 1532 /* Zilch the sentinel while it's running, to avoid recursive invocations; |
| 853 | 1533 assure that it gets restored no matter how the sentinel exits. |
| 1534 | |
| 1535 (#### Why is this necessary? Probably another relic of asynchronous | |
| 1536 calling of process filters/sentinels.) */ | |
| 428 | 1537 p->sentinel = Qnil; |
| 853 | 1538 record_unwind_protect (exec_sentinel_unwind, |
| 1539 noseeum_cons (process, sentinel)); | |
| 1540 /* Don't catch errors here; we're not in any critical code. */ | |
| 1541 call2 (sentinel, process, reason); | |
| 771 | 1542 unbind_to (speccount); |
| 428 | 1543 } |
| 1544 | |
| 1545 DEFUN ("set-process-sentinel", Fset_process_sentinel, 2, 2, 0, /* | |
| 1546 Give PROCESS the sentinel SENTINEL; nil for none. | |
| 1547 The sentinel is called as a function when the process changes state. | |
| 1548 It gets two arguments: the process, and a string describing the change. | |
| 1549 */ | |
| 444 | 1550 (process, sentinel)) |
| 428 | 1551 { |
| 444 | 1552 CHECK_PROCESS (process); |
| 1553 XPROCESS (process)->sentinel = sentinel; | |
| 428 | 1554 return sentinel; |
| 1555 } | |
| 1556 | |
| 1557 DEFUN ("process-sentinel", Fprocess_sentinel, 1, 1, 0, /* | |
| 1558 Return the sentinel of PROCESS; nil if none. | |
| 1559 See `set-process-sentinel' for more info on sentinels. | |
| 1560 */ | |
| 444 | 1561 (process)) |
| 428 | 1562 { |
| 444 | 1563 CHECK_PROCESS (process); |
| 1564 return XPROCESS (process)->sentinel; | |
| 428 | 1565 } |
| 1566 | |
| 1567 | |
| 442 | 1568 const char * |
| 428 | 1569 signal_name (int signum) |
| 1570 { | |
| 1571 if (signum >= 0 && signum < NSIG) | |
| 442 | 1572 return (const char *) sys_siglist[signum]; |
| 428 | 1573 |
| 442 | 1574 return (const char *) GETTEXT ("unknown signal"); |
| 428 | 1575 } |
| 1576 | |
| 1577 void | |
| 1578 update_process_status (Lisp_Object p, | |
| 1579 Lisp_Object status_symbol, | |
| 1580 int exit_code, | |
| 1581 int core_dumped) | |
| 1582 { | |
| 1583 XPROCESS (p)->tick++; | |
| 1584 process_tick++; | |
| 1585 XPROCESS (p)->status_symbol = status_symbol; | |
| 1586 XPROCESS (p)->exit_code = exit_code; | |
| 1587 XPROCESS (p)->core_dumped = core_dumped; | |
| 1588 } | |
| 1589 | |
| 1590 /* Return a string describing a process status list. */ | |
| 1591 | |
| 1592 static Lisp_Object | |
| 440 | 1593 status_message (Lisp_Process *p) |
| 428 | 1594 { |
| 1595 Lisp_Object symbol = p->status_symbol; | |
| 1596 int code = p->exit_code; | |
| 1597 int coredump = p->core_dumped; | |
| 1598 Lisp_Object string, string2; | |
| 1599 | |
| 1600 if (EQ (symbol, Qsignal) || EQ (symbol, Qstop)) | |
| 1601 { | |
|
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1602 string = build_cistring (signal_name (code)); |
| 428 | 1603 if (coredump) |
| 771 | 1604 string2 = build_msg_string (" (core dumped)\n"); |
| 428 | 1605 else |
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1606 string2 = build_ascstring ("\n"); |
| 793 | 1607 set_string_char (string, 0, |
| 867 | 1608 DOWNCASE (0, string_ichar (string, 0))); |
| 428 | 1609 return concat2 (string, string2); |
| 1610 } | |
| 1611 else if (EQ (symbol, Qexit)) | |
| 1612 { | |
| 1613 if (code == 0) | |
| 771 | 1614 return build_msg_string ("finished\n"); |
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1615 string = Fnumber_to_string (make_fixnum (code)); |
| 428 | 1616 if (coredump) |
| 771 | 1617 string2 = build_msg_string (" (core dumped)\n"); |
| 428 | 1618 else |
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1619 string2 = build_ascstring ("\n"); |
| 771 | 1620 return concat2 (build_msg_string ("exited abnormally with code "), |
| 428 | 1621 concat2 (string, string2)); |
| 1622 } | |
| 1623 else | |
| 1624 return Fcopy_sequence (Fsymbol_name (symbol)); | |
| 1625 } | |
| 1626 | |
| 1627 /* Tell status_notify() to check for terminated processes. We do this | |
| 1628 because on some systems we sometimes miss SIGCHLD calls. (Not sure | |
| 853 | 1629 why.) This is also used under Mswin. */ |
| 428 | 1630 |
| 1631 void | |
| 1632 kick_status_notify (void) | |
| 1633 { | |
| 1634 process_tick++; | |
| 1635 } | |
| 1636 | |
| 1637 | |
| 1638 /* Report all recent events of a change in process status | |
| 1639 (either run the sentinel or output a message). | |
| 1640 This is done while Emacs is waiting for keyboard input. */ | |
| 1641 | |
| 1642 void | |
| 1643 status_notify (void) | |
| 1644 { | |
| 1645 /* This function can GC */ | |
| 1646 Lisp_Object tail = Qnil; | |
| 1647 Lisp_Object symbol = Qnil; | |
| 1648 Lisp_Object msg = Qnil; | |
| 1649 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 1650 /* process_tick is volatile, so we have to remember it now. | |
| 444 | 1651 Otherwise, we get a race condition if SIGCHLD happens during |
| 428 | 1652 this function. |
| 1653 | |
| 1654 (Actually, this is not the case anymore. The code to | |
| 1655 update the process structures has been moved out of the | |
| 1656 SIGCHLD handler. But for the moment I'm leaving this | |
| 1657 stuff in -- it can't hurt.) */ | |
| 1658 int temp_process_tick; | |
| 1659 | |
| 1660 MAYBE_PROCMETH (reap_exited_processes, ()); | |
| 1661 | |
| 1662 temp_process_tick = process_tick; | |
| 1663 | |
| 1664 if (update_tick == temp_process_tick) | |
| 1665 return; | |
| 1666 | |
| 1667 /* We need to gcpro tail; if read_process_output calls a filter | |
| 1668 which deletes a process and removes the cons to which tail points | |
| 1669 from Vprocess_alist, and then causes a GC, tail is an unprotected | |
| 1670 reference. */ | |
| 1671 GCPRO3 (tail, symbol, msg); | |
| 1672 | |
| 1673 for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail)) | |
| 1674 { | |
| 444 | 1675 Lisp_Object process = XCAR (tail); |
| 1676 Lisp_Process *p = XPROCESS (process); | |
| 428 | 1677 /* p->tick is also volatile. Same thing as above applies. */ |
| 1678 int this_process_tick; | |
| 1679 | |
| 1680 /* #### extra check for terminated processes, in case a SIGCHLD | |
| 1681 got missed (this seems to happen sometimes, I'm not sure why). | |
| 1682 */ | |
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1683 if (FIXNUMP (p->pid)) |
| 428 | 1684 MAYBE_PROCMETH (update_status_if_terminated, (p)); |
| 1685 | |
| 1686 this_process_tick = p->tick; | |
| 1687 if (this_process_tick != p->update_tick) | |
| 1688 { | |
| 1689 p->update_tick = this_process_tick; | |
| 1690 | |
| 1691 /* If process is still active, read any output that remains. */ | |
| 1692 while (!EQ (p->filter, Qt) | |
| 853 | 1693 && read_process_output (process, 0) > 0) |
| 1694 ; | |
| 1695 while (p->separate_stderr && !EQ (p->stderr_filter, Qt) | |
| 1696 && read_process_output (process, 1) > 0) | |
| 428 | 1697 ; |
| 1698 | |
| 1699 /* Get the text to use for the message. */ | |
| 1700 msg = status_message (p); | |
| 1701 | |
| 1702 /* If process is terminated, deactivate it or delete it. */ | |
| 1703 symbol = p->status_symbol; | |
| 1704 | |
| 1705 if (EQ (symbol, Qsignal) | |
| 1706 || EQ (symbol, Qexit)) | |
| 1707 { | |
| 1708 if (delete_exited_processes) | |
| 444 | 1709 remove_process (process); |
| 428 | 1710 else |
| 444 | 1711 deactivate_process (process); |
| 428 | 1712 } |
| 1713 | |
| 1714 /* Now output the message suitably. */ | |
| 1715 if (!NILP (p->sentinel)) | |
| 444 | 1716 exec_sentinel (process, msg); |
| 428 | 1717 /* Don't bother with a message in the buffer |
| 1718 when a process becomes runnable. */ | |
| 844 | 1719 else if (!EQ (symbol, Qrun) && !NILP (p->buffer) && |
| 1720 /* Avoid error if buffer is deleted | |
| 1721 (probably that's why the process is dead, too) */ | |
| 1722 BUFFER_LIVE_P (XBUFFER (p->buffer))) | |
| 428 | 1723 { |
| 844 | 1724 struct gcpro ngcpro1; |
| 853 | 1725 int spec = process_setup_for_insertion (process, 0); |
| 428 | 1726 |
| 844 | 1727 NGCPRO1 (process); |
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1728 buffer_insert_ascstring (current_buffer, "\nProcess "); |
| 428 | 1729 Finsert (1, &p->name); |
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1730 buffer_insert_ascstring (current_buffer, " "); |
| 428 | 1731 Finsert (1, &msg); |
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1732 Fset_marker (p->mark, make_fixnum (BUF_PT (current_buffer)), |
| 428 | 1733 p->buffer); |
| 1734 | |
| 844 | 1735 unbind_to (spec); |
| 428 | 1736 NUNGCPRO; |
| 1737 } | |
| 1738 } | |
| 1739 } /* end for */ | |
| 1740 | |
| 1741 /* in case buffers use %s in modeline-format */ | |
| 1742 MARK_MODELINE_CHANGED; | |
| 1743 redisplay (); | |
| 1744 | |
| 1745 update_tick = temp_process_tick; | |
| 1746 | |
| 1747 UNGCPRO; | |
| 1748 } | |
| 1749 | |
| 1750 DEFUN ("process-status", Fprocess_status, 1, 1, 0, /* | |
| 1751 Return the status of PROCESS. | |
| 1752 This is a symbol, one of these: | |
| 1753 | |
| 1754 run -- for a process that is running. | |
| 1755 stop -- for a process stopped but continuable. | |
| 1756 exit -- for a process that has exited. | |
| 1757 signal -- for a process that has got a fatal signal. | |
| 1758 open -- for a network stream connection that is open. | |
| 1759 closed -- for a network stream connection that is closed. | |
| 1760 nil -- if arg is a process name and no such process exists. | |
| 1761 | |
| 1762 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 1763 nil, indicating the current buffer's process. | |
| 1764 */ | |
| 444 | 1765 (process)) |
| 428 | 1766 { |
| 1767 Lisp_Object status_symbol; | |
| 1768 | |
| 444 | 1769 if (STRINGP (process)) |
| 1770 process = Fget_process (process); | |
| 428 | 1771 else |
| 444 | 1772 process = get_process (process); |
| 428 | 1773 |
| 444 | 1774 if (NILP (process)) |
| 428 | 1775 return Qnil; |
| 1776 | |
| 444 | 1777 status_symbol = XPROCESS (process)->status_symbol; |
| 1778 if (network_connection_p (process)) | |
| 428 | 1779 { |
| 1780 if (EQ (status_symbol, Qrun)) | |
| 1781 status_symbol = Qopen; | |
| 1782 else if (EQ (status_symbol, Qexit)) | |
| 1783 status_symbol = Qclosed; | |
| 1784 } | |
| 1785 return status_symbol; | |
| 1786 } | |
| 1787 | |
| 1788 DEFUN ("process-exit-status", Fprocess_exit_status, 1, 1, 0, /* | |
| 1789 Return the exit status of PROCESS or the signal number that killed it. | |
| 1790 If PROCESS has not yet exited or died, return 0. | |
| 1791 */ | |
| 444 | 1792 (process)) |
| 428 | 1793 { |
| 444 | 1794 CHECK_PROCESS (process); |
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1795 return make_fixnum (XPROCESS (process)->exit_code); |
| 428 | 1796 } |
| 1797 | |
| 1798 | |
| 1799 | |
| 442 | 1800 static int |
| 1801 decode_signal (Lisp_Object signal_) | |
| 428 | 1802 { |
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1803 if (FIXNUMP (signal_)) |
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1804 return XFIXNUM (signal_); |
| 428 | 1805 else |
| 1806 { | |
| 867 | 1807 Ibyte *name; |
| 428 | 1808 |
| 442 | 1809 CHECK_SYMBOL (signal_); |
| 793 | 1810 name = XSTRING_DATA (XSYMBOL (signal_)->name); |
| 428 | 1811 |
| 793 | 1812 #define handle_signal(sym) do { \ |
| 2367 | 1813 if (!qxestrcmp_ascii ( name, #sym)) \ |
| 793 | 1814 return sym; \ |
| 442 | 1815 } while (0) |
| 428 | 1816 |
| 1817 handle_signal (SIGINT); /* ANSI */ | |
| 1818 handle_signal (SIGILL); /* ANSI */ | |
| 1819 handle_signal (SIGABRT); /* ANSI */ | |
| 1820 handle_signal (SIGFPE); /* ANSI */ | |
| 1821 handle_signal (SIGSEGV); /* ANSI */ | |
| 1822 handle_signal (SIGTERM); /* ANSI */ | |
| 1823 | |
| 1824 #ifdef SIGHUP | |
| 1825 handle_signal (SIGHUP); /* POSIX */ | |
| 1826 #endif | |
| 1827 #ifdef SIGQUIT | |
| 1828 handle_signal (SIGQUIT); /* POSIX */ | |
| 1829 #endif | |
| 1830 #ifdef SIGTRAP | |
| 1831 handle_signal (SIGTRAP); /* POSIX */ | |
| 1832 #endif | |
| 1833 #ifdef SIGKILL | |
| 1834 handle_signal (SIGKILL); /* POSIX */ | |
| 1835 #endif | |
| 1836 #ifdef SIGUSR1 | |
| 1837 handle_signal (SIGUSR1); /* POSIX */ | |
| 1838 #endif | |
| 1839 #ifdef SIGUSR2 | |
| 1840 handle_signal (SIGUSR2); /* POSIX */ | |
| 1841 #endif | |
| 1842 #ifdef SIGPIPE | |
| 1843 handle_signal (SIGPIPE); /* POSIX */ | |
| 1844 #endif | |
| 1845 #ifdef SIGALRM | |
| 1846 handle_signal (SIGALRM); /* POSIX */ | |
| 1847 #endif | |
| 1848 #ifdef SIGCHLD | |
| 1849 handle_signal (SIGCHLD); /* POSIX */ | |
| 1850 #endif | |
| 1851 #ifdef SIGCONT | |
| 1852 handle_signal (SIGCONT); /* POSIX */ | |
| 1853 #endif | |
| 1854 #ifdef SIGSTOP | |
| 1855 handle_signal (SIGSTOP); /* POSIX */ | |
| 1856 #endif | |
| 1857 #ifdef SIGTSTP | |
| 1858 handle_signal (SIGTSTP); /* POSIX */ | |
| 1859 #endif | |
| 1860 #ifdef SIGTTIN | |
| 1861 handle_signal (SIGTTIN); /* POSIX */ | |
| 1862 #endif | |
| 1863 #ifdef SIGTTOU | |
| 1864 handle_signal (SIGTTOU); /* POSIX */ | |
| 1865 #endif | |
| 1866 | |
| 1867 #ifdef SIGBUS | |
| 1868 handle_signal (SIGBUS); /* XPG5 */ | |
| 1869 #endif | |
| 1870 #ifdef SIGPOLL | |
| 1871 handle_signal (SIGPOLL); /* XPG5 */ | |
| 1872 #endif | |
| 1873 #ifdef SIGPROF | |
| 1874 handle_signal (SIGPROF); /* XPG5 */ | |
| 1875 #endif | |
| 1876 #ifdef SIGSYS | |
| 1877 handle_signal (SIGSYS); /* XPG5 */ | |
| 1878 #endif | |
| 1879 #ifdef SIGURG | |
| 1880 handle_signal (SIGURG); /* XPG5 */ | |
| 1881 #endif | |
| 1882 #ifdef SIGXCPU | |
| 1883 handle_signal (SIGXCPU); /* XPG5 */ | |
| 1884 #endif | |
| 1885 #ifdef SIGXFSZ | |
| 1886 handle_signal (SIGXFSZ); /* XPG5 */ | |
| 1887 #endif | |
| 1888 #ifdef SIGVTALRM | |
| 1889 handle_signal (SIGVTALRM); /* XPG5 */ | |
| 1890 #endif | |
| 1891 | |
| 1892 #ifdef SIGIO | |
| 1893 handle_signal (SIGIO); /* BSD 4.2 */ | |
| 1894 #endif | |
| 1895 #ifdef SIGWINCH | |
| 1896 handle_signal (SIGWINCH); /* BSD 4.3 */ | |
| 1897 #endif | |
| 1898 | |
| 1899 #ifdef SIGEMT | |
| 1900 handle_signal (SIGEMT); | |
| 1901 #endif | |
| 1902 #ifdef SIGINFO | |
| 1903 handle_signal (SIGINFO); | |
| 1904 #endif | |
| 1905 #ifdef SIGHWE | |
| 1906 handle_signal (SIGHWE); | |
| 1907 #endif | |
| 1908 #ifdef SIGPRE | |
| 1909 handle_signal (SIGPRE); | |
| 1910 #endif | |
| 1911 #ifdef SIGUME | |
| 1912 handle_signal (SIGUME); | |
| 1913 #endif | |
| 1914 #ifdef SIGDLK | |
| 1915 handle_signal (SIGDLK); | |
| 1916 #endif | |
| 1917 #ifdef SIGCPULIM | |
| 1918 handle_signal (SIGCPULIM); | |
| 1919 #endif | |
| 1920 #ifdef SIGIOT | |
| 1921 handle_signal (SIGIOT); | |
| 1922 #endif | |
| 1923 #ifdef SIGLOST | |
| 1924 handle_signal (SIGLOST); | |
| 1925 #endif | |
| 1926 #ifdef SIGSTKFLT | |
| 1927 handle_signal (SIGSTKFLT); | |
| 1928 #endif | |
| 1929 #ifdef SIGUNUSED | |
| 1930 handle_signal (SIGUNUSED); | |
| 1931 #endif | |
| 1932 #ifdef SIGDANGER | |
| 1933 handle_signal (SIGDANGER); /* AIX */ | |
| 1934 #endif | |
| 1935 #ifdef SIGMSG | |
| 1936 handle_signal (SIGMSG); | |
| 1937 #endif | |
| 1938 #ifdef SIGSOUND | |
| 1939 handle_signal (SIGSOUND); | |
| 1940 #endif | |
| 1941 #ifdef SIGRETRACT | |
| 1942 handle_signal (SIGRETRACT); | |
| 1943 #endif | |
| 1944 #ifdef SIGGRANT | |
| 1945 handle_signal (SIGGRANT); | |
| 1946 #endif | |
| 1947 #ifdef SIGPWR | |
| 1948 handle_signal (SIGPWR); | |
| 1949 #endif | |
| 1950 | |
| 1951 #undef handle_signal | |
| 1952 | |
| 563 | 1953 invalid_constant ("Undefined signal name", signal_); |
| 1204 | 1954 RETURN_NOT_REACHED (0); |
| 442 | 1955 } |
| 1956 } | |
| 1957 | |
| 1958 /* Send signal number SIGNO to PROCESS. | |
| 1959 CURRENT-GROUP non-nil means send signal to the current | |
| 1960 foreground process group of the process's controlling terminal rather | |
| 1961 than to the process's own process group. | |
| 1962 This is used for various commands in shell mode. | |
| 1963 If NOMSG is zero, insert signal-announcements into process's buffers | |
| 1964 right away. | |
| 1965 | |
| 1966 If we can, we try to signal PROCESS by sending control characters | |
| 1967 down the pty. This allows us to signal inferiors who have changed | |
| 1968 their uid, for which kill() would return an EPERM error, or to | |
| 1969 processes running on another computer through a remote login. */ | |
| 1970 | |
| 1971 static void | |
| 1972 process_send_signal (Lisp_Object process, int signo, | |
| 1973 int current_group, int nomsg) | |
| 1974 { | |
| 1975 /* This function can GC */ | |
| 444 | 1976 process = get_process (process); |
| 442 | 1977 |
| 444 | 1978 if (network_connection_p (process)) |
| 563 | 1979 invalid_operation ("Network connection is not a subprocess", process); |
| 444 | 1980 CHECK_LIVE_PROCESS (process); |
| 442 | 1981 |
| 444 | 1982 MAYBE_PROCMETH (kill_child_process, (process, signo, current_group, nomsg)); |
| 442 | 1983 } |
| 1984 | |
| 1985 DEFUN ("process-send-signal", Fprocess_send_signal, 1, 3, 0, /* | |
| 1986 Send signal SIGNAL to process PROCESS. | |
| 1987 SIGNAL may be an integer, or a symbol naming a signal, like `SIGSEGV'. | |
| 1988 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 1989 nil, indicating the current buffer's process. | |
| 1990 Third arg CURRENT-GROUP non-nil means send signal to the current | |
| 1991 foreground process group of the process's controlling terminal rather | |
| 1992 than to the process's own process group. | |
| 1993 If the process is a shell that supports job control, this means | |
| 1994 send the signal to the current subjob rather than the shell. | |
| 1995 */ | |
| 1996 (signal_, process, current_group)) | |
| 1997 { | |
| 1998 /* This function can GC */ | |
| 1999 process_send_signal (process, decode_signal (signal_), | |
| 2000 !NILP (current_group), 0); | |
| 2001 return process; | |
| 2002 } | |
| 2003 | |
| 2004 DEFUN ("interrupt-process", Finterrupt_process, 0, 2, 0, /* | |
| 2005 Interrupt process PROCESS. | |
| 2006 See function `process-send-signal' for more details on usage. | |
| 2007 */ | |
| 2008 (process, current_group)) | |
| 2009 { | |
| 2010 /* This function can GC */ | |
| 2011 process_send_signal (process, SIGINT, !NILP (current_group), 0); | |
| 2012 return process; | |
| 2013 } | |
| 2014 | |
| 2015 DEFUN ("kill-process", Fkill_process, 0, 2, 0, /* | |
| 2016 Kill process PROCESS. | |
| 2017 See function `process-send-signal' for more details on usage. | |
| 2018 */ | |
| 2019 (process, current_group)) | |
| 2020 { | |
| 2021 /* This function can GC */ | |
| 2022 #ifdef SIGKILL | |
| 2023 process_send_signal (process, SIGKILL, !NILP (current_group), 0); | |
| 2024 #else | |
| 563 | 2025 signal_error (Qunimplemented, |
| 2026 "kill-process: Not supported on this system", | |
| 2027 Qunbound); | |
| 442 | 2028 #endif |
| 2029 return process; | |
| 2030 } | |
| 2031 | |
| 2032 DEFUN ("quit-process", Fquit_process, 0, 2, 0, /* | |
| 2033 Send QUIT signal to process PROCESS. | |
| 2034 See function `process-send-signal' for more details on usage. | |
| 2035 */ | |
| 2036 (process, current_group)) | |
| 2037 { | |
| 2038 /* This function can GC */ | |
| 2039 #ifdef SIGQUIT | |
| 2040 process_send_signal (process, SIGQUIT, !NILP (current_group), 0); | |
| 2041 #else | |
| 563 | 2042 signal_error (Qunimplemented, |
| 2043 "quit-process: Not supported on this system", | |
| 2044 Qunbound); | |
| 442 | 2045 #endif |
| 2046 return process; | |
| 2047 } | |
| 2048 | |
| 2049 DEFUN ("stop-process", Fstop_process, 0, 2, 0, /* | |
| 2050 Stop process PROCESS. | |
| 2051 See function `process-send-signal' for more details on usage. | |
| 2052 */ | |
| 2053 (process, current_group)) | |
| 2054 { | |
| 2055 /* This function can GC */ | |
| 2056 #ifdef SIGTSTP | |
| 2057 process_send_signal (process, SIGTSTP, !NILP (current_group), 0); | |
| 2058 #else | |
| 563 | 2059 signal_error (Qunimplemented, |
| 2060 "stop-process: Not supported on this system", | |
| 2061 Qunbound); | |
| 442 | 2062 #endif |
| 2063 return process; | |
| 2064 } | |
| 2065 | |
| 2066 DEFUN ("continue-process", Fcontinue_process, 0, 2, 0, /* | |
| 2067 Continue process PROCESS. | |
| 2068 See function `process-send-signal' for more details on usage. | |
| 2069 */ | |
| 2070 (process, current_group)) | |
| 2071 { | |
| 2072 /* This function can GC */ | |
| 2073 #ifdef SIGCONT | |
| 2074 process_send_signal (process, SIGCONT, !NILP (current_group), 0); | |
| 2075 #else | |
| 563 | 2076 signal_error (Qunimplemented, |
| 2077 "continue-process: Not supported on this system", | |
| 2078 Qunbound); | |
| 442 | 2079 #endif |
| 2080 return process; | |
| 2081 } | |
| 2082 | |
| 2083 DEFUN ("signal-process", Fsignal_process, 2, 2, | |
| 2084 "nProcess number: \nnSignal code: ", /* | |
| 2085 Send the process with process id PID the signal with code SIGNAL. | |
| 2086 PID must be an integer. The process need not be a child of this Emacs. | |
| 2087 SIGNAL may be an integer, or a symbol naming a signal, like `SIGSEGV'. | |
| 2088 */ | |
| 2089 (pid, signal_)) | |
| 2090 { | |
|
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2091 CHECK_FIXNUM (pid); |
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2092 |
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2093 return make_fixnum (PROCMETH_OR_GIVEN (kill_process_by_pid, |
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2094 (XFIXNUM (pid), decode_signal (signal_)), |
| 442 | 2095 -1)); |
| 428 | 2096 } |
| 2097 | |
| 2098 DEFUN ("process-send-eof", Fprocess_send_eof, 0, 1, 0, /* | |
| 2099 Make PROCESS see end-of-file in its input. | |
| 2100 PROCESS may be a process, a buffer, the name of a process or buffer, or | |
| 2101 nil, indicating the current buffer's process. | |
| 2102 If PROCESS is a network connection, or is a process communicating | |
| 2103 through a pipe (as opposed to a pty), then you cannot send any more | |
| 2104 text to PROCESS after you call this function. | |
| 2105 */ | |
| 2106 (process)) | |
| 2107 { | |
| 2108 /* This function can GC */ | |
| 444 | 2109 process = get_process (process); |
| 428 | 2110 |
| 2111 /* Make sure the process is really alive. */ | |
| 444 | 2112 if (! EQ (XPROCESS (process)->status_symbol, Qrun)) |
| 563 | 2113 invalid_operation ("Process not running", process); |
| 428 | 2114 |
| 444 | 2115 if (!MAYBE_INT_PROCMETH (process_send_eof, (process))) |
| 428 | 2116 { |
| 444 | 2117 if (!NILP (DATA_OUTSTREAM (XPROCESS (process)))) |
| 428 | 2118 { |
| 853 | 2119 USID humpty, dumpty; |
| 444 | 2120 Lstream_close (XLSTREAM (DATA_OUTSTREAM (XPROCESS (process)))); |
| 853 | 2121 event_stream_delete_io_streams (Qnil, |
| 2122 XPROCESS (process)->pipe_outstream, | |
| 2123 Qnil, &humpty, &dumpty); | |
| 444 | 2124 XPROCESS (process)->pipe_outstream = Qnil; |
| 2125 XPROCESS (process)->coding_outstream = Qnil; | |
| 428 | 2126 } |
| 2127 } | |
| 2128 | |
| 2129 return process; | |
| 2130 } | |
| 2131 | |
| 2132 | |
| 2133 /************************************************************************/ | |
| 2134 /* deleting a process */ | |
| 2135 /************************************************************************/ | |
| 2136 | |
| 2137 void | |
| 444 | 2138 deactivate_process (Lisp_Object process) |
| 428 | 2139 { |
| 444 | 2140 Lisp_Process *p = XPROCESS (process); |
| 853 | 2141 USID in_usid, err_usid; |
| 428 | 2142 |
| 2143 /* It's possible that we got as far in the process-creation | |
| 2144 process as creating the descriptors but didn't get so | |
| 2145 far as selecting the process for input. In this | |
| 2146 case, p->pid is nil: p->pid is set at the same time that | |
| 2147 the process is selected for input. */ | |
| 2148 /* #### The comment does not look correct. event_stream_unselect_process | |
| 853 | 2149 is guarded by process->*_selected, so this is not a problem. - kkm*/ |
| 428 | 2150 /* Must call this before setting the streams to nil */ |
| 853 | 2151 event_stream_unselect_process (p, 1, 1); |
| 428 | 2152 |
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2153 /* We can get here in case of a crash in the external process, and then |
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2154 the Lstream_close on output will cause a SIGPIPE, which we're not ready |
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2155 for here. It looks to me like all cases where this function is called |
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2156 we know the process has exited (but I'm not 100% sure for the call in |
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2157 execute_internal_event (event-stream.c)), so it should be OK to use |
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2158 Lstream_close_noflush. |
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2159 |
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2160 #### The layering here needs a rethink. We should just be able |
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2161 to call Lstream_close, and let the Lstream's implementation decide |
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2162 if it can flush safely or not. The immediate problem is that the |
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2163 Lstream needs to know the process's status, but I don't think it has |
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2164 a handle to the process. */ |
| 428 | 2165 if (!NILP (DATA_OUTSTREAM (p))) |
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2166 Lstream_close_noflush (XLSTREAM (DATA_OUTSTREAM (p))); |
| 428 | 2167 if (!NILP (DATA_INSTREAM (p))) |
| 2168 Lstream_close (XLSTREAM (DATA_INSTREAM (p))); | |
| 853 | 2169 if (!NILP (DATA_ERRSTREAM (p))) |
| 2170 Lstream_close (XLSTREAM (DATA_ERRSTREAM (p))); | |
| 428 | 2171 |
| 2172 /* Provide minimal implementation for deactivate_process | |
| 2173 if there's no process-specific one */ | |
| 2174 if (HAS_PROCMETH_P (deactivate_process)) | |
| 853 | 2175 PROCMETH (deactivate_process, (p, &in_usid, &err_usid)); |
| 428 | 2176 else |
| 853 | 2177 event_stream_delete_io_streams (p->pipe_instream, |
| 2178 p->pipe_outstream, | |
| 2179 p->pipe_errstream, | |
| 2180 &in_usid, &err_usid); | |
| 428 | 2181 |
| 853 | 2182 if (in_usid != USID_DONTHASH) |
| 2367 | 2183 remhash ((const void *) in_usid, usid_to_process); |
| 853 | 2184 if (err_usid != USID_DONTHASH) |
| 2367 | 2185 remhash ((const void *) err_usid, usid_to_process); |
| 428 | 2186 |
| 2187 p->pipe_instream = Qnil; | |
| 2188 p->pipe_outstream = Qnil; | |
| 853 | 2189 p->pipe_errstream = Qnil; |
| 428 | 2190 p->coding_instream = Qnil; |
| 2191 p->coding_outstream = Qnil; | |
| 853 | 2192 p->coding_errstream = Qnil; |
| 428 | 2193 } |
| 2194 | |
| 2195 static void | |
| 444 | 2196 remove_process (Lisp_Object process) |
| 428 | 2197 { |
| 444 | 2198 Vprocess_list = delq_no_quit (process, Vprocess_list); |
| 428 | 2199 |
| 444 | 2200 deactivate_process (process); |
| 428 | 2201 } |
| 2202 | |
| 2203 DEFUN ("delete-process", Fdelete_process, 1, 1, 0, /* | |
| 2204 Delete PROCESS: kill it and forget about it immediately. | |
| 2205 PROCESS may be a process or the name of one, or a buffer name. | |
| 2206 */ | |
| 444 | 2207 (process)) |
| 428 | 2208 { |
| 2209 /* This function can GC */ | |
| 440 | 2210 Lisp_Process *p; |
| 444 | 2211 process = get_process (process); |
| 2212 p = XPROCESS (process); | |
| 2213 if (network_connection_p (process)) | |
| 428 | 2214 { |
| 2215 p->status_symbol = Qexit; | |
| 2216 p->exit_code = 0; | |
| 2217 p->core_dumped = 0; | |
| 2218 p->tick++; | |
| 2219 process_tick++; | |
| 2220 } | |
| 440 | 2221 else if (PROCESS_LIVE_P (p)) |
| 428 | 2222 { |
| 444 | 2223 Fkill_process (process, Qnil); |
| 428 | 2224 /* Do this now, since remove_process will make sigchld_handler do nothing. */ |
| 2225 p->status_symbol = Qsignal; | |
| 2226 p->exit_code = SIGKILL; | |
| 2227 p->core_dumped = 0; | |
| 2228 p->tick++; | |
| 2229 process_tick++; | |
| 2230 status_notify (); | |
| 2231 } | |
| 444 | 2232 remove_process (process); |
| 428 | 2233 return Qnil; |
| 2234 } | |
| 2235 | |
| 2236 /* Kill all processes associated with `buffer'. | |
| 2237 If `buffer' is nil, kill all processes */ | |
| 2238 | |
| 2239 void | |
| 2240 kill_buffer_processes (Lisp_Object buffer) | |
| 2241 { | |
| 444 | 2242 LIST_LOOP_2 (process, Vprocess_list) |
| 2243 if ((NILP (buffer) || EQ (XPROCESS (process)->buffer, buffer))) | |
| 2244 { | |
| 2245 if (network_connection_p (process)) | |
| 2246 Fdelete_process (process); | |
| 2247 else if (PROCESS_LIVE_P (XPROCESS (process))) | |
| 2248 process_send_signal (process, SIGHUP, 0, 1); | |
| 2249 } | |
| 428 | 2250 } |
| 2251 | |
| 2252 DEFUN ("process-kill-without-query", Fprocess_kill_without_query, 1, 2, 0, /* | |
| 2253 Say no query needed if PROCESS is running when Emacs is exited. | |
| 2254 Optional second argument if non-nil says to require a query. | |
| 2255 Value is t if a query was formerly required. | |
| 2256 */ | |
| 444 | 2257 (process, require_query_p)) |
| 428 | 2258 { |
| 2259 int tem; | |
| 2260 | |
| 444 | 2261 CHECK_PROCESS (process); |
| 2262 tem = XPROCESS (process)->kill_without_query; | |
| 2263 XPROCESS (process)->kill_without_query = NILP (require_query_p); | |
| 428 | 2264 |
| 2265 return tem ? Qnil : Qt; | |
| 2266 } | |
| 2267 | |
| 2268 DEFUN ("process-kill-without-query-p", Fprocess_kill_without_query_p, 1, 1, 0, /* | |
| 444 | 2269 Return t if PROCESS will be killed without query when emacs is exited. |
| 428 | 2270 */ |
| 444 | 2271 (process)) |
| 428 | 2272 { |
| 444 | 2273 CHECK_PROCESS (process); |
| 2274 return XPROCESS (process)->kill_without_query ? Qt : Qnil; | |
| 428 | 2275 } |
| 2276 | |
| 2277 | |
| 2278 #if 0 | |
| 2279 | |
| 826 | 2280 DEFUN ("process-connection", Fprocess_connection, 0, 1, 0, /* |
| 428 | 2281 Return the connection type of `PROCESS'. This can be nil (pipe), |
| 2282 t or pty (pty) or stream (socket connection). | |
| 2283 */ | |
| 2284 (process)) | |
| 2285 { | |
| 2286 return XPROCESS (process)->type; | |
| 2287 } | |
| 2288 | |
| 2289 #endif /* 0 */ | |
| 2290 | |
| 814 | 2291 |
| 2292 static int | |
| 867 | 2293 getenv_internal (const Ibyte *var, |
| 814 | 2294 Bytecount varlen, |
| 867 | 2295 Ibyte **value, |
| 814 | 2296 Bytecount *valuelen) |
| 2297 { | |
| 2298 Lisp_Object scan; | |
| 2299 | |
| 2300 assert (env_initted); | |
| 2301 | |
| 2302 for (scan = Vprocess_environment; CONSP (scan); scan = XCDR (scan)) | |
| 2303 { | |
| 2304 Lisp_Object entry = XCAR (scan); | |
| 2305 | |
| 2306 if (STRINGP (entry) | |
| 2307 && XSTRING_LENGTH (entry) > varlen | |
| 826 | 2308 && string_byte (entry, varlen) == '=' |
| 814 | 2309 #ifdef WIN32_NATIVE |
| 2310 /* NT environment variables are case insensitive. */ | |
| 2311 && ! memicmp (XSTRING_DATA (entry), var, varlen) | |
| 2312 #else /* not WIN32_NATIVE */ | |
| 2313 && ! memcmp (XSTRING_DATA (entry), var, varlen) | |
| 2314 #endif /* not WIN32_NATIVE */ | |
| 2315 ) | |
| 2316 { | |
| 2317 *value = XSTRING_DATA (entry) + (varlen + 1); | |
| 2318 *valuelen = XSTRING_LENGTH (entry) - (varlen + 1); | |
| 2319 return 1; | |
| 2320 } | |
| 2321 } | |
| 2322 | |
| 2323 return 0; | |
| 2324 } | |
| 2325 | |
| 2326 static void | |
| 867 | 2327 putenv_internal (const Ibyte *var, |
| 814 | 2328 Bytecount varlen, |
| 867 | 2329 const Ibyte *value, |
| 814 | 2330 Bytecount valuelen) |
| 2331 { | |
| 2332 Lisp_Object scan; | |
| 2333 | |
| 2334 assert (env_initted); | |
| 2335 | |
| 2336 for (scan = Vprocess_environment; CONSP (scan); scan = XCDR (scan)) | |
| 2337 { | |
| 2338 Lisp_Object entry = XCAR (scan); | |
| 2339 | |
| 2340 if (STRINGP (entry) | |
| 2341 && XSTRING_LENGTH (entry) > varlen | |
| 826 | 2342 && string_byte (entry, varlen) == '=' |
| 814 | 2343 #ifdef WIN32_NATIVE |
| 2344 /* NT environment variables are case insensitive. */ | |
| 2345 && ! memicmp (XSTRING_DATA (entry), var, varlen) | |
| 2346 #else /* not WIN32_NATIVE */ | |
| 2347 && ! memcmp (XSTRING_DATA (entry), var, varlen) | |
| 2348 #endif /* not WIN32_NATIVE */ | |
| 2349 ) | |
| 2350 { | |
| 2351 XCAR (scan) = concat3 (make_string (var, varlen), | |
|
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|
2352 build_ascstring ("="), |
| 814 | 2353 make_string (value, valuelen)); |
| 2354 return; | |
| 2355 } | |
| 2356 } | |
| 2357 | |
| 2358 Vprocess_environment = Fcons (concat3 (make_string (var, varlen), | |
|
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|
2359 build_ascstring ("="), |
| 814 | 2360 make_string (value, valuelen)), |
| 2361 Vprocess_environment); | |
| 2362 } | |
| 2363 | |
| 2364 /* NOTE: | |
| 2365 | |
| 2366 FSF has this as a Lisp function, as follows. Generally moving things | |
| 2367 out of C and into Lisp is a good idea, but in this case the Lisp | |
| 2368 function is used so early in the startup sequence that it would be ugly | |
| 2369 to rearrange the early dumped code to accommodate this. | |
| 854 | 2370 |
| 814 | 2371 (defun getenv (variable) |
| 2372 "Get the value of environment variable VARIABLE. | |
| 2373 VARIABLE should be a string. Value is nil if VARIABLE is undefined in | |
| 2374 the environment. Otherwise, value is a string. | |
| 2375 | |
| 2376 This function consults the variable `process-environment' | |
| 2377 for its value." | |
| 2378 (interactive (list (read-envvar-name "Get environment variable: " t))) | |
| 2379 (let ((value (getenv-internal variable))) | |
| 2380 (when (interactive-p) | |
| 2381 (message "%s" (if value value "Not set"))) | |
| 2382 value)) | |
| 2383 */ | |
| 2384 | |
| 2385 DEFUN ("getenv", Fgetenv, 1, 2, "sEnvironment variable: \np", /* | |
| 2386 Return the value of environment variable VAR, as a string. | |
| 2387 VAR is a string, the name of the variable. | |
| 2388 When invoked interactively, prints the value in the echo area. | |
| 2389 */ | |
| 2390 (var, interactivep)) | |
| 2391 { | |
| 4932 | 2392 Ibyte *value = NULL; |
| 814 | 2393 Bytecount valuelen; |
| 2394 Lisp_Object v = Qnil; | |
| 2395 struct gcpro gcpro1; | |
| 2396 | |
| 2397 CHECK_STRING (var); | |
| 2398 GCPRO1 (v); | |
| 2399 if (getenv_internal (XSTRING_DATA (var), XSTRING_LENGTH (var), | |
| 2400 &value, &valuelen)) | |
| 2401 v = make_string (value, valuelen); | |
| 2402 if (!NILP (interactivep)) | |
| 2403 { | |
| 2404 if (NILP (v)) | |
| 2405 message ("%s not defined in environment", XSTRING_DATA (var)); | |
| 2406 else | |
| 2407 /* #### Should use Fprin1_to_string or Fprin1 to handle string | |
| 2408 containing quotes correctly. */ | |
| 2409 message ("\"%s\"", value); | |
| 2410 } | |
| 2411 RETURN_UNGCPRO (v); | |
| 2412 } | |
| 2413 | |
| 2414 /* A version of getenv that consults Vprocess_environment, easily | |
| 2415 callable from C. | |
| 2416 | |
| 2417 (At init time, Vprocess_environment is initialized from the | |
| 2418 environment, stored in the global variable environ. [Note that | |
| 2419 at startup time, `environ' should be the same as the envp parameter | |
| 2420 passed to main(); however, later calls to putenv() may change | |
| 2421 `environ', making the envp parameter inaccurate.] Calls to getenv() | |
| 2422 and putenv() consult and modify `environ'. However, once | |
| 2423 Vprocess_environment is initted, XEmacs C code should *NEVER* call | |
| 2424 getenv() or putenv() directly, because (1) Lisp code that modifies | |
| 2425 the environment only modifies Vprocess_environment, not `environ'; | |
| 2426 and (2) Vprocess_environment is in internal format but `environ' | |
| 2427 is in some external format, and getenv()/putenv() are not Mule- | |
| 2428 encapsulated. | |
| 2429 | |
| 2430 WARNING: This value points into Lisp string data and thus will become | |
| 2431 invalid after a GC. */ | |
| 2432 | |
| 867 | 2433 Ibyte * |
| 2434 egetenv (const CIbyte *var) | |
| 814 | 2435 { |
| 2436 /* This cannot GC -- 7-28-00 ben */ | |
| 867 | 2437 Ibyte *value; |
| 814 | 2438 Bytecount valuelen; |
| 2439 | |
| 867 | 2440 if (getenv_internal ((const Ibyte *) var, strlen (var), &value, &valuelen)) |
| 814 | 2441 return value; |
| 2442 else | |
| 2443 return 0; | |
| 2444 } | |
| 2445 | |
| 2446 void | |
| 867 | 2447 eputenv (const CIbyte *var, const CIbyte *value) |
| 814 | 2448 { |
| 867 | 2449 putenv_internal ((Ibyte *) var, strlen (var), (Ibyte *) value, |
| 814 | 2450 strlen (value)); |
| 2451 } | |
| 2452 | |
| 2453 | |
|
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2454 void |
|
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|
2455 reinit_process_early (void) |
|
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|
2456 { |
|
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|
2457 OBJECT_HAS_METHOD (process, getprop); |
|
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|
2458 OBJECT_HAS_METHOD (process, putprop); |
|
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|
2459 OBJECT_HAS_METHOD (process, remprop); |
|
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|
2460 OBJECT_HAS_METHOD (process, plist); |
|
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|
2461 OBJECT_HAS_METHOD (process, setplist); |
|
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|
2462 } |
|
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|
2463 |
| 814 | 2464 /* This is not named init_process in order to avoid a conflict with NS 3.3 */ |
| 2465 void | |
| 2466 init_xemacs_process (void) | |
| 2467 { | |
| 2468 /* This function can GC */ | |
| 2469 | |
| 2470 MAYBE_PROCMETH (init_process, ()); | |
| 2471 | |
| 2472 Vprocess_list = Qnil; | |
| 2473 | |
| 2474 if (usid_to_process) | |
| 2475 clrhash (usid_to_process); | |
| 2476 else | |
| 2477 usid_to_process = make_hash_table (32); | |
| 854 | 2478 |
| 814 | 2479 { |
| 2480 /* jwz: always initialize Vprocess_environment, so that egetenv() | |
| 2481 works in temacs. */ | |
| 2367 | 2482 Extbyte **envp; |
| 814 | 2483 Vprocess_environment = Qnil; |
| 2367 | 2484 #ifdef WIN32_NATIVE |
| 2485 _wgetenv (L""); /* force initialization of _wenviron */ | |
| 2486 for (envp = (Extbyte **) _wenviron; envp && *envp; envp++) | |
| 2487 Vprocess_environment = | |
|
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|
2488 Fcons (build_extstring (*envp, Qmswindows_unicode), |
| 2367 | 2489 Vprocess_environment); |
| 2490 #else | |
| 814 | 2491 for (envp = environ; envp && *envp; envp++) |
| 2492 Vprocess_environment = | |
|
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|
2493 Fcons (build_extstring (*envp, Qenvironment_variable_encoding), |
|
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Ben Wing <ben@xemacs.org>
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diff
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|
2494 Vprocess_environment); |
| 2367 | 2495 #endif |
| 814 | 2496 /* This gets set back to 0 in disksave_object_finalization() */ |
| 2497 env_initted = 1; | |
| 2498 } | |
| 2499 | |
| 2500 { | |
| 2501 /* Initialize shell-file-name from environment variables or best guess. */ | |
| 2502 #ifdef WIN32_NATIVE | |
| 867 | 2503 const Ibyte *shell = egetenv ("SHELL"); |
| 814 | 2504 if (!shell) shell = egetenv ("COMSPEC"); |
| 2505 /* Should never happen! */ | |
| 2506 if (!shell) shell = | |
| 867 | 2507 (Ibyte *) (GetVersion () & 0x80000000 ? "command" : "cmd"); |
| 814 | 2508 #else /* not WIN32_NATIVE */ |
| 867 | 2509 const Ibyte *shell = egetenv ("SHELL"); |
| 2510 if (!shell) shell = (Ibyte *) "/bin/sh"; | |
| 814 | 2511 #endif |
| 2512 | |
| 2513 #if 0 /* defined (WIN32_NATIVE) */ | |
| 2514 /* BAD BAD BAD. We do not wanting to be passing an XEmacs-created | |
| 2515 SHELL var down to some inferior Cygwin process, which might get | |
| 2516 screwed up. | |
| 854 | 2517 |
| 814 | 2518 There are a few broken apps (eterm/term.el, eterm/tshell.el, |
| 2519 os-utils/terminal.el, texinfo/tex-mode.el) where this will | |
| 2520 cause problems. Those broken apps don't look at | |
| 2521 shell-file-name, instead just at explicit-shell-file-name, | |
| 2522 ESHELL and SHELL. They are apparently attempting to borrow | |
| 2523 what `M-x shell' uses, but that latter also looks at | |
| 2524 shell-file-name. What we want is for all of these apps to look | |
| 2525 at shell-file-name, so that the user can change the value of | |
| 2526 shell-file-name and everything will work out hunky-dorey. | |
| 2527 */ | |
| 854 | 2528 |
| 814 | 2529 if (!egetenv ("SHELL")) |
| 2530 { | |
| 2367 | 2531 Ibyte *faux_var = alloca_ibytes (7 + qxestrlen (shell)); |
| 814 | 2532 qxesprintf (faux_var, "SHELL=%s", shell); |
|
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diff
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|
2533 Vprocess_environment = Fcons (build_istring (faux_var), |
| 814 | 2534 Vprocess_environment); |
| 2535 } | |
| 2536 #endif /* 0 */ | |
| 2537 | |
|
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|
2538 Vshell_file_name = build_istring (shell); |
| 814 | 2539 } |
|
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|
2540 |
|
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|
2541 reinit_process_early (); |
| 814 | 2542 } |
| 2543 | |
| 428 | 2544 void |
| 2545 syms_of_process (void) | |
| 2546 { | |
|
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changeset
|
2547 INIT_LISP_OBJECT (process); |
| 442 | 2548 |
| 563 | 2549 DEFSYMBOL (Qprocessp); |
| 2550 DEFSYMBOL (Qprocess_live_p); | |
| 2551 DEFSYMBOL (Qrun); | |
| 2552 DEFSYMBOL (Qstop); | |
| 2553 DEFSYMBOL (Qopen); | |
| 2554 DEFSYMBOL (Qclosed); | |
| 863 | 2555 #if 0 |
| 2556 /* see comment at Fprocess_readable_p */ | |
| 2557 DEFSYMBOL (&Qprocess_readable_p); | |
| 2558 #endif | |
| 563 | 2559 DEFSYMBOL (Qtcp); |
| 2560 DEFSYMBOL (Qudp); | |
| 428 | 2561 |
| 2562 #ifdef HAVE_MULTICAST | |
| 563 | 2563 DEFSYMBOL (Qmulticast); /* Used for occasional warnings */ |
| 428 | 2564 #endif |
| 2565 | |
| 563 | 2566 DEFERROR_STANDARD (Qprocess_error, Qio_error); |
| 2567 DEFERROR_STANDARD (Qnetwork_error, Qio_error); | |
| 2568 | |
| 428 | 2569 DEFSUBR (Fprocessp); |
| 440 | 2570 DEFSUBR (Fprocess_live_p); |
| 863 | 2571 #if 0 |
| 2572 /* see comment at Fprocess_readable_p */ | |
| 2573 DEFSUBR (Fprocess_readable_p); | |
| 2574 #endif | |
| 428 | 2575 DEFSUBR (Fget_process); |
| 2576 DEFSUBR (Fget_buffer_process); | |
| 2577 DEFSUBR (Fdelete_process); | |
| 2578 DEFSUBR (Fprocess_status); | |
| 2579 DEFSUBR (Fprocess_exit_status); | |
| 2580 DEFSUBR (Fprocess_id); | |
| 2581 DEFSUBR (Fprocess_name); | |
| 2582 DEFSUBR (Fprocess_tty_name); | |
| 2583 DEFSUBR (Fprocess_command); | |
| 859 | 2584 DEFSUBR (Fprocess_has_separate_stderr_p); |
| 428 | 2585 DEFSUBR (Fset_process_buffer); |
| 853 | 2586 DEFSUBR (Fset_process_stderr_buffer); |
| 428 | 2587 DEFSUBR (Fprocess_buffer); |
| 2588 DEFSUBR (Fprocess_mark); | |
| 853 | 2589 DEFSUBR (Fprocess_stderr_buffer); |
| 2590 DEFSUBR (Fprocess_stderr_mark); | |
| 428 | 2591 DEFSUBR (Fset_process_filter); |
| 2592 DEFSUBR (Fprocess_filter); | |
| 853 | 2593 DEFSUBR (Fset_process_stderr_filter); |
| 2594 DEFSUBR (Fprocess_stderr_filter); | |
| 428 | 2595 DEFSUBR (Fset_process_window_size); |
| 2596 DEFSUBR (Fset_process_sentinel); | |
| 2597 DEFSUBR (Fprocess_sentinel); | |
| 2598 DEFSUBR (Fprocess_kill_without_query); | |
| 2599 DEFSUBR (Fprocess_kill_without_query_p); | |
| 2600 DEFSUBR (Fprocess_list); | |
| 2601 DEFSUBR (Fstart_process_internal); | |
| 2602 #ifdef HAVE_SOCKETS | |
| 2603 DEFSUBR (Fopen_network_stream_internal); | |
| 2604 #ifdef HAVE_MULTICAST | |
| 2605 DEFSUBR (Fopen_multicast_group_internal); | |
| 2606 #endif /* HAVE_MULTICAST */ | |
| 2607 #endif /* HAVE_SOCKETS */ | |
| 2608 DEFSUBR (Fprocess_send_region); | |
| 2609 DEFSUBR (Fprocess_send_string); | |
| 442 | 2610 DEFSUBR (Fprocess_send_signal); |
| 428 | 2611 DEFSUBR (Finterrupt_process); |
| 2612 DEFSUBR (Fkill_process); | |
| 2613 DEFSUBR (Fquit_process); | |
| 2614 DEFSUBR (Fstop_process); | |
| 2615 DEFSUBR (Fcontinue_process); | |
| 2616 DEFSUBR (Fprocess_send_eof); | |
| 2617 DEFSUBR (Fsignal_process); | |
| 2618 /* DEFSUBR (Fprocess_connection); */ | |
| 2619 DEFSUBR (Fprocess_input_coding_system); | |
| 2620 DEFSUBR (Fprocess_output_coding_system); | |
| 2621 DEFSUBR (Fset_process_input_coding_system); | |
| 2622 DEFSUBR (Fset_process_output_coding_system); | |
| 2623 DEFSUBR (Fprocess_coding_system); | |
| 2624 DEFSUBR (Fset_process_coding_system); | |
| 814 | 2625 DEFSUBR (Fgetenv); |
| 428 | 2626 } |
| 2627 | |
| 2628 void | |
| 2629 vars_of_process (void) | |
| 2630 { | |
| 2631 Fprovide (intern ("subprocesses")); | |
| 2632 #ifdef HAVE_SOCKETS | |
| 2633 Fprovide (intern ("network-streams")); | |
| 2634 #ifdef HAVE_MULTICAST | |
| 2635 Fprovide (intern ("multicast")); | |
| 2636 #endif /* HAVE_MULTICAST */ | |
| 2637 #endif /* HAVE_SOCKETS */ | |
| 2638 staticpro (&Vprocess_list); | |
| 2639 | |
| 2640 DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes /* | |
| 2641 *Non-nil means delete processes immediately when they exit. | |
| 2642 nil means don't delete them until `list-processes' is run. | |
| 2643 */ ); | |
| 2644 | |
| 2645 delete_exited_processes = 1; | |
| 2646 | |
| 442 | 2647 DEFVAR_CONST_LISP ("null-device", &Vnull_device /* |
| 2648 Name of the null device, which differs from system to system. | |
| 2649 The null device is a filename that acts as a sink for arbitrary amounts of | |
| 2650 data, which is discarded, or as a source for a zero-length file. | |
| 2651 It is available on all the systems that we currently support, but with | |
| 2652 different names (typically either `/dev/null' or `nul'). | |
| 2653 | |
| 2654 Note that there is also a /dev/zero on most modern Unix versions (including | |
| 2655 Cygwin), which acts like /dev/null when used as a sink, but as a source | |
| 2656 it sends a non-ending stream of zero bytes. It's used most often along | |
| 2657 with memory-mapping. We don't provide a Lisp variable for this because | |
| 2658 the operations needing this are lower level than what ELisp programs | |
| 2659 typically do, and in any case no equivalent exists under native MS Windows. | |
| 2660 */ ); | |
|
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|
2661 Vnull_device = build_ascstring (NULL_DEVICE); |
| 442 | 2662 |
| 428 | 2663 DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type /* |
| 2664 Control type of device used to communicate with subprocesses. | |
| 2665 Values are nil to use a pipe, or t or `pty' to use a pty. | |
| 2666 The value has no effect if the system has no ptys or if all ptys are busy: | |
| 2667 then a pipe is used in any case. | |
| 2668 The value takes effect when `start-process' is called. | |
| 2669 */ ); | |
| 2670 Vprocess_connection_type = Qt; | |
| 2671 | |
| 2672 DEFVAR_BOOL ("windowed-process-io", &windowed_process_io /* | |
| 2673 Enables input/output on standard handles of a windowed process. | |
| 2674 When this variable is nil (the default), XEmacs does not attempt to read | |
| 2675 standard output handle of a windowed process. Instead, the process is | |
| 2676 immediately marked as exited immediately upon successful launching. This is | |
| 2677 done because normal windowed processes do not use standard I/O, as they are | |
| 2678 not connected to any console. | |
| 2679 | |
| 2680 When launching a specially crafted windowed process, which expects to be | |
| 2681 launched by XEmacs, or by other program which pipes its standard input and | |
| 2682 output, this variable must be set to non-nil, in which case XEmacs will | |
| 2683 treat this process just like a console process. | |
| 2684 | |
| 2685 NOTE: You should never set this variable, only bind it. | |
| 2686 | |
| 2687 Only Windows processes can be "windowed" or "console". This variable has no | |
| 2688 effect on UNIX processes, because all UNIX processes are "console". | |
| 2689 */ ); | |
| 2690 windowed_process_io = 0; | |
| 2691 | |
| 771 | 2692 DEFVAR_INT ("debug-process-io", &debug_process_io /* |
| 2693 If non-zero, display data sent to or received from a process. | |
| 2694 */ ); | |
| 2695 debug_process_io = 0; | |
| 2696 | |
| 2697 DEFVAR_LISP ("default-process-coding-system", | |
| 2698 &Vdefault_process_coding_system /* | |
| 2699 Cons of coding systems used for process I/O by default. | |
|
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Stephen J. Turnbull <stephen@xemacs.org>
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4693
diff
changeset
|
2700 May also be nil, interpreted as (nil . nil). |
| 771 | 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 */ ); | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2704 /* Better, system-dependent defaults are set in code-init.el. */ |
| 771 | 2705 Vdefault_process_coding_system = Fcons (Qundecided, Qnil); |
| 2706 | |
| 853 | 2707 DEFVAR_LISP ("default-network-coding-system", |
| 2708 &Vdefault_network_coding_system /* | |
| 2709 Cons of coding systems used for network I/O by default. | |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2710 May also be nil, interpreted as (nil . nil). |
| 853 | 2711 The car part is used for reading (decoding) data from a process, and |
| 2712 the cdr part is used for writing (encoding) data to a process. | |
| 2713 */ ); | |
| 2714 Vdefault_network_coding_system = Fcons (Qundecided, Qnil); | |
| 2715 | |
| 428 | 2716 #ifdef PROCESS_IO_BLOCKING |
| 2717 DEFVAR_LISP ("network-stream-blocking-port-list", &network_stream_blocking_port_list /* | |
| 2718 List of port numbers or port names to set a blocking I/O mode with connection. | |
| 862 | 2719 Nil value means to set a default (non-blocking) I/O mode. |
| 428 | 2720 The value takes effect when `open-network-stream-internal' is called. |
| 2721 */ ); | |
| 2722 network_stream_blocking_port_list = Qnil; | |
| 2723 #endif /* PROCESS_IO_BLOCKING */ | |
| 814 | 2724 |
| 2725 /* This function can GC */ | |
| 2726 DEFVAR_LISP ("shell-file-name", &Vshell_file_name /* | |
| 2727 *File name to load inferior shells from. | |
| 2728 Initialized from the SHELL environment variable. | |
| 2729 */ ); | |
| 428 | 2730 |
|
4729
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2731 /* ben? thinks the format of this variable is "semi-bogus". |
|
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2732 sjt doesn't agree, since it captures a restriction that is |
|
428d7c571110
Fix issue145: accept nil in default-process-coding-system.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4693
diff
changeset
|
2733 present in POSIX shells, after all. */ |
| 814 | 2734 DEFVAR_LISP ("process-environment", &Vprocess_environment /* |
| 2735 List of environment variables for subprocesses to inherit. | |
| 2736 Each element should be a string of the form ENVVARNAME=VALUE. | |
| 2737 The environment which Emacs inherits is placed in this variable | |
| 2738 when Emacs starts. | |
| 2739 */ ); | |
| 2740 | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4932
diff
changeset
|
2741 Vlisp_EXEC_SUFFIXES = build_ascstring (EXEC_SUFFIXES); |
| 814 | 2742 staticpro (&Vlisp_EXEC_SUFFIXES); |
| 2743 } |