428
+ − 1 /* The console object.
+ − 2 Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
800
+ − 3 Copyright (C) 1996, 2002 Ben Wing.
428
+ − 4
+ − 5 This file is part of XEmacs.
+ − 6
+ − 7 XEmacs is free software; you can redistribute it and/or modify it
+ − 8 under the terms of the GNU General Public License as published by the
+ − 9 Free Software Foundation; either version 2, or (at your option) any
+ − 10 later version.
+ − 11
+ − 12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
+ − 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ − 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ − 15 for more details.
+ − 16
+ − 17 You should have received a copy of the GNU General Public License
+ − 18 along with XEmacs; see the file COPYING. If not, write to
+ − 19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ − 20 Boston, MA 02111-1307, USA. */
+ − 21
+ − 22 /* Synched up with: Not in FSF. */
+ − 23
853
+ − 24 /* Written by Ben Wing, late 1995?.
+ − 25 suspend-console, set-input-mode, and related stuff largely based on
+ − 26 existing code.
+ − 27 */
428
+ − 28
+ − 29 #include <config.h>
+ − 30 #include "lisp.h"
+ − 31
+ − 32 #include "buffer.h"
872
+ − 33 #include "console-impl.h"
+ − 34 #include "device-impl.h"
428
+ − 35 #include "events.h"
872
+ − 36 #include "frame-impl.h"
428
+ − 37 #include "redisplay.h"
+ − 38 #include "sysdep.h"
+ − 39 #include "window.h"
+ − 40
1204
+ − 41 #include "console-stream-impl.h"
872
+ − 42 #ifdef HAVE_TTY
+ − 43 #include "console-tty-impl.h"
+ − 44 #endif
800
+ − 45
428
+ − 46 Lisp_Object Vconsole_list, Vselected_console;
+ − 47
+ − 48 Lisp_Object Vcreate_console_hook, Vdelete_console_hook;
+ − 49
+ − 50 Lisp_Object Qconsolep, Qconsole_live_p;
+ − 51 Lisp_Object Qcreate_console_hook;
+ − 52 Lisp_Object Qdelete_console_hook;
+ − 53
+ − 54 Lisp_Object Qsuspend_hook;
+ − 55 Lisp_Object Qsuspend_resume_hook;
+ − 56
+ − 57 /* This structure holds the default values of the console-local
+ − 58 variables defined with DEFVAR_CONSOLE_LOCAL, that have special
+ − 59 slots in each console. The default value occupies the same slot
+ − 60 in this structure as an individual console's value occupies in
+ − 61 that console. Setting the default value also goes through the
+ − 62 list of consoles and stores into each console that does not say
+ − 63 it has a local value. */
+ − 64 Lisp_Object Vconsole_defaults;
+ − 65 static void *console_defaults_saved_slots;
+ − 66
+ − 67 /* This structure marks which slots in a console have corresponding
+ − 68 default values in console_defaults.
+ − 69 Each such slot has a nonzero value in this structure.
+ − 70 The value has only one nonzero bit.
+ − 71
+ − 72 When a console has its own local value for a slot,
+ − 73 the bit for that slot (found in the same slot in this structure)
+ − 74 is turned on in the console's local_var_flags slot.
+ − 75
+ − 76 If a slot in this structure is 0, then there is a DEFVAR_CONSOLE_LOCAL
+ − 77 for the slot, but there is no default value for it; the corresponding
+ − 78 slot in console_defaults is not used except to initialize newly-created
+ − 79 consoles.
+ − 80
+ − 81 If a slot is -1, then there is a DEFVAR_CONSOLE_LOCAL for it
+ − 82 as well as a default value which is used to initialize newly-created
+ − 83 consoles and as a reset-value when local-vars are killed.
+ − 84
+ − 85 If a slot is -2, there is no DEFVAR_CONSOLE_LOCAL for it.
+ − 86 (The slot is always local, but there's no lisp variable for it.)
+ − 87 The default value is only used to initialize newly-creation consoles.
+ − 88
+ − 89 If a slot is -3, then there is no DEFVAR_CONSOLE_LOCAL for it but
+ − 90 there is a default which is used to initialize newly-creation
+ − 91 consoles and as a reset-value when local-vars are killed.
+ − 92
+ − 93
+ − 94 */
+ − 95 struct console console_local_flags;
+ − 96
+ − 97 /* This structure holds the names of symbols whose values may be
+ − 98 console-local. It is indexed and accessed in the same way as the above. */
+ − 99 static Lisp_Object Vconsole_local_symbols;
+ − 100 static void *console_local_symbols_saved_slots;
+ − 101
+ − 102 DEFINE_CONSOLE_TYPE (dead);
+ − 103
+ − 104 Lisp_Object Vconsole_type_list;
+ − 105
+ − 106 console_type_entry_dynarr *the_console_type_entry_dynarr;
+ − 107
+ − 108
934
+ − 109
1204
+ − 110 static const struct memory_description console_data_description_1 []= {
+ − 111 #ifdef HAVE_TTY
+ − 112 { XD_STRUCT_PTR, tty_console, 1, &tty_console_data_description},
+ − 113 #endif
+ − 114 { XD_STRUCT_PTR, stream_console, 1, &stream_console_data_description},
934
+ − 115 { XD_END }
+ − 116 };
+ − 117
1204
+ − 118 static const struct sized_memory_description console_data_description = {
+ − 119 sizeof (void *), console_data_description_1
934
+ − 120 };
+ − 121
1204
+ − 122 static const struct memory_description console_description [] = {
934
+ − 123 { XD_INT, offsetof (struct console, contype) },
1204
+ − 124 #define MARKED_SLOT(x) { XD_LISP_OBJECT, offsetof (struct console, x) },
+ − 125 #include "conslots.h"
+ − 126 { XD_STRUCT_PTR, offsetof (struct console, conmeths), 1,
+ − 127 &console_methods_description },
934
+ − 128 { XD_UNION, offsetof (struct console, console_data),
1204
+ − 129 XD_INDIRECT (0, 0), &console_data_description },
934
+ − 130 { XD_END }
+ − 131 };
+ − 132
428
+ − 133 static Lisp_Object
+ − 134 mark_console (Lisp_Object obj)
+ − 135 {
+ − 136 struct console *con = XCONSOLE (obj);
+ − 137
1204
+ − 138 #define MARKED_SLOT(x) mark_object (con->x);
428
+ − 139 #include "conslots.h"
+ − 140
+ − 141 /* Can be zero for Vconsole_defaults, Vconsole_local_symbols */
+ − 142 if (con->conmeths)
+ − 143 {
+ − 144 mark_object (con->conmeths->symbol);
+ − 145 MAYBE_CONMETH (con, mark_console, (con));
+ − 146 }
+ − 147
+ − 148 return Qnil;
+ − 149 }
+ − 150
+ − 151 static void
+ − 152 print_console (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
+ − 153 {
+ − 154 struct console *con = XCONSOLE (obj);
+ − 155
+ − 156 if (print_readably)
563
+ − 157 printing_unreadable_object ("#<console %s 0x%x>",
+ − 158 XSTRING_DATA (con->name), con->header.uid);
428
+ − 159
800
+ − 160 write_fmt_string (printcharfun, "#<%s-console",
+ − 161 !CONSOLE_LIVE_P (con) ? "dead" : CONSOLE_TYPE_NAME (con));
440
+ − 162 if (CONSOLE_LIVE_P (con) && !NILP (CONSOLE_CONNECTION (con)))
800
+ − 163 write_fmt_string_lisp (printcharfun, " on %S", 1,
+ − 164 CONSOLE_CONNECTION (con));
+ − 165 write_fmt_string (printcharfun, " 0x%x>", con->header.uid);
428
+ − 166 }
+ − 167
934
+ − 168 DEFINE_LRECORD_IMPLEMENTATION ("console", console,
+ − 169 0, /*dumpable-flag*/
+ − 170 mark_console, print_console, 0, 0, 0,
+ − 171 console_description,
+ − 172 struct console);
428
+ − 173
1204
+ − 174
+ − 175 static void
+ − 176 set_quit_events (struct console *con, Lisp_Object key)
+ − 177 {
+ − 178 /* Make sure to run Fcharacter_to_event() *BEFORE* setting QUIT_CHAR,
+ − 179 so that nothing is changed when invalid values trigger an error! */
+ − 180 con->quit_event = Fcharacter_to_event (key, Qnil, wrap_console (con), Qnil);
+ − 181 con->quit_char = key;
+ − 182 con->critical_quit_event = Fcopy_event (con->quit_event, Qnil);
+ − 183 upshift_event (con->critical_quit_event);
+ − 184 }
+ − 185
428
+ − 186 static struct console *
1204
+ − 187 allocate_console (Lisp_Object type)
428
+ − 188 {
+ − 189 Lisp_Object console;
+ − 190 struct console *con = alloc_lcrecord_type (struct console, &lrecord_console);
+ − 191 struct gcpro gcpro1;
+ − 192
+ − 193 copy_lcrecord (con, XCONSOLE (Vconsole_defaults));
+ − 194
793
+ − 195 console = wrap_console (con);
428
+ − 196 GCPRO1 (console);
+ − 197
1204
+ − 198 con->conmeths = decode_console_type (type, ERROR_ME);
+ − 199 con->contype = get_console_variant (type);
771
+ − 200 con->command_builder = allocate_command_builder (console, 1);
428
+ − 201 con->function_key_map = Fmake_sparse_keymap (Qnil);
1204
+ − 202 set_quit_events (con, make_char (7)); /* C-g */
428
+ − 203
+ − 204 UNGCPRO;
+ − 205 return con;
+ − 206 }
+ − 207
+ − 208 struct console *
+ − 209 decode_console (Lisp_Object console)
+ − 210 {
+ − 211 if (NILP (console))
+ − 212 console = Fselected_console ();
+ − 213 /* quietly accept devices and frames for the console arg */
+ − 214 if (DEVICEP (console) || FRAMEP (console))
+ − 215 console = DEVICE_CONSOLE (decode_device (console));
+ − 216 CHECK_LIVE_CONSOLE (console);
+ − 217 return XCONSOLE (console);
+ − 218 }
+ − 219
+ − 220
+ − 221 struct console_methods *
578
+ − 222 decode_console_type (Lisp_Object type, Error_Behavior errb)
428
+ − 223 {
+ − 224 int i;
+ − 225
+ − 226 for (i = 0; i < Dynarr_length (the_console_type_entry_dynarr); i++)
+ − 227 if (EQ (type, Dynarr_at (the_console_type_entry_dynarr, i).symbol))
+ − 228 return Dynarr_at (the_console_type_entry_dynarr, i).meths;
+ − 229
563
+ − 230 maybe_invalid_constant ("Invalid console type", type, Qconsole, errb);
428
+ − 231
+ − 232 return 0;
+ − 233 }
+ − 234
934
+ − 235 enum console_variant
+ − 236 get_console_variant (Lisp_Object type)
+ − 237 {
+ − 238 if (EQ (type, Qtty))
1204
+ − 239 return tty_console;
934
+ − 240
+ − 241 if (EQ (type, Qgtk))
1204
+ − 242 return gtk_console;
934
+ − 243
+ − 244 if (EQ (type, Qx))
1204
+ − 245 return x_console;
934
+ − 246
+ − 247 if (EQ (type, Qmswindows))
1204
+ − 248 return mswindows_console;
934
+ − 249
1346
+ − 250 if (EQ (type, Qmsprinter))
+ − 251 return msprinter_console;
+ − 252
934
+ − 253 if (EQ (type, Qstream))
1204
+ − 254 return stream_console;
934
+ − 255
+ − 256 abort (); /* should never happen */
+ − 257 return dead_console;
+ − 258 }
+ − 259
428
+ − 260 int
+ − 261 valid_console_type_p (Lisp_Object type)
+ − 262 {
+ − 263 return decode_console_type (type, ERROR_ME_NOT) != 0;
+ − 264 }
+ − 265
+ − 266 DEFUN ("valid-console-type-p", Fvalid_console_type_p, 1, 1, 0, /*
444
+ − 267 Return t if CONSOLE-TYPE is a valid console type.
1346
+ − 268 Valid types are 'x, 'tty, 'mswindows, 'msprinter, 'gtk, and 'stream.
428
+ − 269 */
+ − 270 (console_type))
+ − 271 {
+ − 272 return valid_console_type_p (console_type) ? Qt : Qnil;
+ − 273 }
+ − 274
+ − 275 DEFUN ("console-type-list", Fconsole_type_list, 0, 0, 0, /*
+ − 276 Return a list of valid console types.
+ − 277 */
+ − 278 ())
+ − 279 {
+ − 280 return Fcopy_sequence (Vconsole_type_list);
+ − 281 }
+ − 282
+ − 283 DEFUN ("cdfw-console", Fcdfw_console, 1, 1, 0, /*
+ − 284 Given a console, device, frame, or window, return the associated console.
+ − 285 Return nil otherwise.
+ − 286 */
444
+ − 287 (object))
428
+ − 288 {
444
+ − 289 return CDFW_CONSOLE (object);
428
+ − 290 }
+ − 291
872
+ − 292 int
+ − 293 console_live_p (struct console *c)
+ − 294 {
+ − 295 return CONSOLE_LIVE_P (c);
+ − 296 }
+ − 297
+ − 298 Lisp_Object
+ − 299 console_device_list (struct console *c)
+ − 300 {
+ − 301 return CONSOLE_DEVICE_LIST (c);
+ − 302 }
+ − 303
428
+ − 304
+ − 305 DEFUN ("selected-console", Fselected_console, 0, 0, 0, /*
+ − 306 Return the console which is currently active.
+ − 307 */
+ − 308 ())
+ − 309 {
+ − 310 return Vselected_console;
+ − 311 }
+ − 312
+ − 313 /* Called from selected_device_1(), called from selected_frame_1(),
+ − 314 called from Fselect_window() */
+ − 315 void
+ − 316 select_console_1 (Lisp_Object console)
+ − 317 {
+ − 318 /* perhaps this should do something more complicated */
+ − 319 Vselected_console = console;
+ − 320
+ − 321 /* #### Schedule this to be removed in 19.14 */
+ − 322 #ifdef HAVE_X_WINDOWS
+ − 323 if (CONSOLE_X_P (XCONSOLE (console)))
+ − 324 Vwindow_system = Qx;
+ − 325 else
+ − 326 #endif
462
+ − 327 #ifdef HAVE_GTK
+ − 328 if (CONSOLE_GTK_P (XCONSOLE (console)))
+ − 329 Vwindow_system = Qgtk;
+ − 330 else
+ − 331 #endif
428
+ − 332 #ifdef HAVE_MS_WINDOWS
+ − 333 if (CONSOLE_MSWINDOWS_P (XCONSOLE (console)))
+ − 334 Vwindow_system = Qmswindows;
+ − 335 else
+ − 336 #endif
+ − 337 Vwindow_system = Qnil;
+ − 338 }
+ − 339
+ − 340 DEFUN ("select-console", Fselect_console, 1, 1, 0, /*
+ − 341 Select the console CONSOLE.
+ − 342 Subsequent editing commands apply to its selected device, selected frame,
+ − 343 and selected window. The selection of CONSOLE lasts until the next time
+ − 344 the user does something to select a different console, or until the next
+ − 345 time this function is called.
+ − 346 */
+ − 347 (console))
+ − 348 {
+ − 349 Lisp_Object device;
+ − 350
+ − 351 CHECK_LIVE_CONSOLE (console);
+ − 352
+ − 353 device = CONSOLE_SELECTED_DEVICE (XCONSOLE (console));
+ − 354 if (!NILP (device))
+ − 355 {
+ − 356 struct device *d = XDEVICE (device);
+ − 357 Lisp_Object frame = DEVICE_SELECTED_FRAME (d);
+ − 358 if (!NILP (frame))
+ − 359 {
+ − 360 struct frame *f = XFRAME(frame);
+ − 361 Fselect_window (FRAME_SELECTED_WINDOW (f), Qnil);
+ − 362 }
+ − 363 else
563
+ − 364 invalid_operation ("Can't select console with no frames", Qunbound);
428
+ − 365 }
+ − 366 else
563
+ − 367 invalid_operation ("Can't select a console with no devices", Qunbound);
428
+ − 368 return Qnil;
+ − 369 }
+ − 370
+ − 371 void
+ − 372 set_console_last_nonminibuf_frame (struct console *con,
+ − 373 Lisp_Object frame)
+ − 374 {
+ − 375 con->last_nonminibuf_frame = frame;
+ − 376 }
+ − 377
+ − 378 DEFUN ("consolep", Fconsolep, 1, 1, 0, /*
+ − 379 Return non-nil if OBJECT is a console.
+ − 380 */
+ − 381 (object))
+ − 382 {
+ − 383 return CONSOLEP (object) ? Qt : Qnil;
+ − 384 }
+ − 385
+ − 386 DEFUN ("console-live-p", Fconsole_live_p, 1, 1, 0, /*
+ − 387 Return non-nil if OBJECT is a console that has not been deleted.
+ − 388 */
+ − 389 (object))
+ − 390 {
+ − 391 return CONSOLEP (object) && CONSOLE_LIVE_P (XCONSOLE (object)) ? Qt : Qnil;
+ − 392 }
+ − 393
+ − 394 DEFUN ("console-type", Fconsole_type, 0, 1, 0, /*
444
+ − 395 Return the console type (e.g. `x' or `tty') of CONSOLE.
1346
+ − 396 Value is
+ − 397 `tty' for a tty console (a character-only terminal),
428
+ − 398 `x' for a console that is an X display,
1346
+ − 399 `mswindows' for a console that is an MS Windows connection,
+ − 400 `msprinter' for a console that is an MS Windows printer connection,
+ − 401 `gtk' for a console that is a GTK connection,
428
+ − 402 `stream' for a stream console (which acts like a stdio stream), and
+ − 403 `dead' for a deleted console.
+ − 404 */
+ − 405 (console))
+ − 406 {
+ − 407 /* don't call decode_console() because we want to allow for dead
+ − 408 consoles. */
+ − 409 if (NILP (console))
+ − 410 console = Fselected_console ();
+ − 411 CHECK_CONSOLE (console);
+ − 412 return CONSOLE_TYPE (XCONSOLE (console));
+ − 413 }
+ − 414
+ − 415 DEFUN ("console-name", Fconsole_name, 0, 1, 0, /*
444
+ − 416 Return the name of CONSOLE.
428
+ − 417 */
+ − 418 (console))
+ − 419 {
+ − 420 return CONSOLE_NAME (decode_console (console));
+ − 421 }
+ − 422
+ − 423 DEFUN ("console-connection", Fconsole_connection, 0, 1, 0, /*
+ − 424 Return the connection of the specified console.
+ − 425 CONSOLE defaults to the selected console if omitted.
+ − 426 */
+ − 427 (console))
+ − 428 {
+ − 429 return CONSOLE_CONNECTION (decode_console (console));
+ − 430 }
+ − 431
+ − 432 static Lisp_Object
+ − 433 semi_canonicalize_console_connection (struct console_methods *meths,
578
+ − 434 Lisp_Object name, Error_Behavior errb)
428
+ − 435 {
440
+ − 436 if (HAS_CONTYPE_METH_P (meths, semi_canonicalize_console_connection))
+ − 437 return CONTYPE_METH (meths, semi_canonicalize_console_connection,
+ − 438 (name, errb));
+ − 439 else
+ − 440 return CONTYPE_METH_OR_GIVEN (meths, canonicalize_console_connection,
+ − 441 (name, errb), name);
428
+ − 442 }
+ − 443
+ − 444 static Lisp_Object
+ − 445 canonicalize_console_connection (struct console_methods *meths,
578
+ − 446 Lisp_Object name, Error_Behavior errb)
428
+ − 447 {
440
+ − 448 if (HAS_CONTYPE_METH_P (meths, canonicalize_console_connection))
+ − 449 return CONTYPE_METH (meths, canonicalize_console_connection,
+ − 450 (name, errb));
+ − 451 else
+ − 452 return CONTYPE_METH_OR_GIVEN (meths, semi_canonicalize_console_connection,
+ − 453 (name, errb), name);
428
+ − 454 }
+ − 455
+ − 456 static Lisp_Object
+ − 457 find_console_of_type (struct console_methods *meths, Lisp_Object canon)
+ − 458 {
+ − 459 Lisp_Object concons;
+ − 460
+ − 461 CONSOLE_LOOP (concons)
+ − 462 {
+ − 463 Lisp_Object console = XCAR (concons);
+ − 464
+ − 465 if (EQ (CONMETH_TYPE (meths), CONSOLE_TYPE (XCONSOLE (console)))
+ − 466 && internal_equal (CONSOLE_CANON_CONNECTION (XCONSOLE (console)),
+ − 467 canon, 0))
+ − 468 return console;
+ − 469 }
+ − 470
+ − 471 return Qnil;
+ − 472 }
+ − 473
+ − 474 DEFUN ("find-console", Ffind_console, 1, 2, 0, /*
+ − 475 Look for an existing console attached to connection CONNECTION.
+ − 476 Return the console if found; otherwise, return nil.
+ − 477
+ − 478 If TYPE is specified, only return consoles of that type; otherwise,
+ − 479 return consoles of any type. (It is possible, although unlikely,
+ − 480 that two consoles of different types could have the same connection
+ − 481 name; in such a case, the first console found is returned.)
+ − 482 */
+ − 483 (connection, type))
+ − 484 {
+ − 485 Lisp_Object canon = Qnil;
+ − 486 struct gcpro gcpro1;
+ − 487
+ − 488 GCPRO1 (canon);
+ − 489
+ − 490 if (!NILP (type))
+ − 491 {
+ − 492 struct console_methods *conmeths = decode_console_type (type, ERROR_ME);
+ − 493 canon = canonicalize_console_connection (conmeths, connection,
+ − 494 ERROR_ME_NOT);
+ − 495 if (UNBOUNDP (canon))
+ − 496 RETURN_UNGCPRO (Qnil);
+ − 497
+ − 498 RETURN_UNGCPRO (find_console_of_type (conmeths, canon));
+ − 499 }
+ − 500 else
+ − 501 {
+ − 502 int i;
+ − 503
+ − 504 for (i = 0; i < Dynarr_length (the_console_type_entry_dynarr); i++)
+ − 505 {
+ − 506 struct console_methods *conmeths =
+ − 507 Dynarr_at (the_console_type_entry_dynarr, i).meths;
+ − 508 canon = canonicalize_console_connection (conmeths, connection,
+ − 509 ERROR_ME_NOT);
+ − 510 if (!UNBOUNDP (canon))
+ − 511 {
+ − 512 Lisp_Object console = find_console_of_type (conmeths, canon);
+ − 513 if (!NILP (console))
+ − 514 RETURN_UNGCPRO (console);
+ − 515 }
+ − 516 }
+ − 517
+ − 518 RETURN_UNGCPRO (Qnil);
+ − 519 }
+ − 520 }
+ − 521
+ − 522 DEFUN ("get-console", Fget_console, 1, 2, 0, /*
+ − 523 Look for an existing console attached to connection CONNECTION.
+ − 524 Return the console if found; otherwise, signal an error.
+ − 525
+ − 526 If TYPE is specified, only return consoles of that type; otherwise,
+ − 527 return consoles of any type. (It is possible, although unlikely,
+ − 528 that two consoles of different types could have the same connection
+ − 529 name; in such a case, the first console found is returned.)
+ − 530 */
+ − 531 (connection, type))
+ − 532 {
+ − 533 Lisp_Object console = Ffind_console (connection, type);
+ − 534 if (NILP (console))
+ − 535 {
+ − 536 if (NILP (type))
563
+ − 537 invalid_argument ("No such console", connection);
428
+ − 538 else
563
+ − 539 invalid_argument_2 ("No such console", type, connection);
428
+ − 540 }
+ − 541 return console;
+ − 542 }
+ − 543
+ − 544 Lisp_Object
+ − 545 create_console (Lisp_Object name, Lisp_Object type, Lisp_Object connection,
+ − 546 Lisp_Object props)
+ − 547 {
+ − 548 /* This function can GC */
+ − 549 struct console *con;
+ − 550 Lisp_Object console;
+ − 551 struct gcpro gcpro1;
+ − 552
+ − 553 console = Ffind_console (connection, type);
+ − 554 if (!NILP (console))
+ − 555 return console;
+ − 556
1204
+ − 557 con = allocate_console (type);
793
+ − 558 console = wrap_console (con);
428
+ − 559
+ − 560 GCPRO1 (console);
+ − 561
+ − 562 CONSOLE_NAME (con) = name;
+ − 563 CONSOLE_CONNECTION (con) =
+ − 564 semi_canonicalize_console_connection (con->conmeths, connection,
+ − 565 ERROR_ME);
+ − 566 CONSOLE_CANON_CONNECTION (con) =
+ − 567 canonicalize_console_connection (con->conmeths, connection,
+ − 568 ERROR_ME);
+ − 569
+ − 570 MAYBE_CONMETH (con, init_console, (con, props));
+ − 571
+ − 572 /* Do it this way so that the console list is in order of creation */
+ − 573 Vconsole_list = nconc2 (Vconsole_list, Fcons (console, Qnil));
853
+ − 574 note_object_created (console);
428
+ − 575
440
+ − 576 if (CONMETH_OR_GIVEN (con, initially_selected_for_input, (con), 0))
428
+ − 577 event_stream_select_console (con);
+ − 578
+ − 579 UNGCPRO;
+ − 580 return console;
+ − 581 }
+ − 582
+ − 583 void
+ − 584 add_entry_to_console_type_list (Lisp_Object symbol,
+ − 585 struct console_methods *meths)
+ − 586 {
+ − 587 struct console_type_entry entry;
+ − 588
+ − 589 entry.symbol = symbol;
+ − 590 entry.meths = meths;
+ − 591 Dynarr_add (the_console_type_entry_dynarr, entry);
+ − 592 Vconsole_type_list = Fcons (symbol, Vconsole_type_list);
+ − 593 }
+ − 594
+ − 595 /* find a console other than the selected one. Prefer non-stream
+ − 596 consoles over stream consoles. */
+ − 597
+ − 598 static Lisp_Object
+ − 599 find_other_console (Lisp_Object console)
+ − 600 {
+ − 601 Lisp_Object concons;
+ − 602
+ − 603 /* look for a non-stream console */
+ − 604 CONSOLE_LOOP (concons)
+ − 605 {
+ − 606 Lisp_Object con = XCAR (concons);
+ − 607 if (!CONSOLE_STREAM_P (XCONSOLE (con))
+ − 608 && !EQ (con, console)
+ − 609 && !NILP (CONSOLE_SELECTED_DEVICE (XCONSOLE (con)))
+ − 610 && !NILP (DEVICE_SELECTED_FRAME
+ − 611 (XDEVICE (CONSOLE_SELECTED_DEVICE (XCONSOLE (con))))))
+ − 612 break;
+ − 613 }
+ − 614 if (!NILP (concons))
+ − 615 return XCAR (concons);
+ − 616
+ − 617 /* OK, now look for a stream console */
+ − 618 CONSOLE_LOOP (concons)
+ − 619 {
+ − 620 Lisp_Object con = XCAR (concons);
+ − 621 if (!EQ (con, console)
+ − 622 && !NILP (CONSOLE_SELECTED_DEVICE (XCONSOLE (con)))
+ − 623 && !NILP (DEVICE_SELECTED_FRAME
+ − 624 (XDEVICE (CONSOLE_SELECTED_DEVICE (XCONSOLE (con))))))
+ − 625 break;
+ − 626 }
+ − 627 if (!NILP (concons))
+ − 628 return XCAR (concons);
+ − 629
+ − 630 /* Sorry, there ain't none */
+ − 631 return Qnil;
+ − 632 }
+ − 633
+ − 634 static int
+ − 635 find_nonminibuffer_frame_not_on_console_predicate (Lisp_Object frame,
+ − 636 void *closure)
+ − 637 {
+ − 638 Lisp_Object console;
+ − 639
826
+ − 640 console = VOID_TO_LISP (closure);
428
+ − 641 if (FRAME_MINIBUF_ONLY_P (XFRAME (frame)))
+ − 642 return 0;
+ − 643 if (EQ (console, FRAME_CONSOLE (XFRAME (frame))))
+ − 644 return 0;
+ − 645 return 1;
+ − 646 }
+ − 647
+ − 648 static Lisp_Object
+ − 649 find_nonminibuffer_frame_not_on_console (Lisp_Object console)
+ − 650 {
+ − 651 return find_some_frame (find_nonminibuffer_frame_not_on_console_predicate,
+ − 652 LISP_TO_VOID (console));
+ − 653 }
+ − 654
617
+ − 655 static void
+ − 656 nuke_all_console_slots (struct console *con, Lisp_Object zap)
+ − 657 {
+ − 658 zero_lcrecord (con);
+ − 659
1204
+ − 660 #define MARKED_SLOT(x) con->x = zap;
617
+ − 661 #include "conslots.h"
+ − 662 }
+ − 663
428
+ − 664 /* Delete console CON.
+ − 665
+ − 666 If FORCE is non-zero, allow deletion of the only frame.
+ − 667
+ − 668 If CALLED_FROM_KILL_EMACS is non-zero, then, if
+ − 669 deleting the last console, just delete it,
+ − 670 instead of calling `save-buffers-kill-emacs'.
+ − 671
+ − 672 If FROM_IO_ERROR is non-zero, then the console is gone due
+ − 673 to an I/O error. This affects what happens if we exit
+ − 674 (we do an emergency exit instead of `save-buffers-kill-emacs'.)
+ − 675 */
+ − 676
+ − 677 void
+ − 678 delete_console_internal (struct console *con, int force,
+ − 679 int called_from_kill_emacs, int from_io_error)
+ − 680 {
+ − 681 /* This function can GC */
+ − 682 Lisp_Object console;
+ − 683 struct gcpro gcpro1;
+ − 684
+ − 685 /* OK to delete an already-deleted console. */
+ − 686 if (!CONSOLE_LIVE_P (con))
+ − 687 return;
+ − 688
793
+ − 689 console = wrap_console (con);
853
+ − 690
+ − 691 if (!force)
+ − 692 check_allowed_operation (OPERATION_DELETE_OBJECT, console, Qnil);
+ − 693
428
+ − 694 GCPRO1 (console);
+ − 695
+ − 696 if (!called_from_kill_emacs)
+ − 697 {
+ − 698 int down_we_go = 0;
+ − 699
+ − 700 if ((XINT (Flength (Vconsole_list)) == 1)
+ − 701 /* if we just created the console, it might not be listed,
+ − 702 or something ... */
+ − 703 && !NILP (memq_no_quit (console, Vconsole_list)))
+ − 704 down_we_go = 1;
+ − 705 /* If there aren't any nonminibuffer frames that would
+ − 706 be left, then exit. */
+ − 707 else if (NILP (find_nonminibuffer_frame_not_on_console (console)))
+ − 708 down_we_go = 1;
+ − 709
+ − 710 if (down_we_go)
+ − 711 {
+ − 712 if (!force)
563
+ − 713 invalid_operation ("Attempt to delete the only frame", Qunbound);
428
+ − 714 else if (from_io_error)
+ − 715 {
+ − 716 /* Mayday mayday! We're going down! */
+ − 717 stderr_out (" Autosaving and exiting...\n");
+ − 718 Vwindow_system = Qnil; /* let it lie! */
+ − 719 preparing_for_armageddon = 1;
+ − 720 Fkill_emacs (make_int (70));
+ − 721 }
+ − 722 else
+ − 723 {
+ − 724 call0 (Qsave_buffers_kill_emacs);
+ − 725 UNGCPRO;
+ − 726 /* If we get here, the user said they didn't want
+ − 727 to exit, so don't. */
+ − 728 return;
+ − 729 }
+ − 730 }
+ − 731 }
+ − 732
+ − 733 /* Breathe a sigh of relief. We're still alive. */
+ − 734
+ − 735 {
+ − 736 Lisp_Object frmcons, devcons;
+ − 737
+ − 738 /* First delete all frames without their own minibuffers,
+ − 739 to avoid errors coming from attempting to delete a frame
+ − 740 that is a surrogate for another frame.
+ − 741
+ − 742 We don't set "called_from_delete_console" because we want the
+ − 743 device to go ahead and get deleted if we delete the last frame
+ − 744 on a device. We won't run into trouble here because for any
+ − 745 frame without a minibuffer, there has to be another one on
+ − 746 the same console with a minibuffer, and we're not deleting that,
+ − 747 so delete_console_internal() won't get recursively called.
+ − 748
+ − 749 WRONG! With surrogate minibuffers this isn't true. Frames
+ − 750 with only a minibuffer are not enough to prevent
+ − 751 delete_frame_internal from triggering a device deletion. */
+ − 752 CONSOLE_FRAME_LOOP_NO_BREAK (frmcons, devcons, con)
+ − 753 {
+ − 754 struct frame *f = XFRAME (XCAR (frmcons));
+ − 755 /* delete_frame_internal() might do anything such as run hooks,
+ − 756 so be defensive. */
+ − 757 if (FRAME_LIVE_P (f) && !FRAME_HAS_MINIBUF_P (f))
+ − 758 delete_frame_internal (f, 1, 1, from_io_error);
+ − 759
+ − 760 if (!CONSOLE_LIVE_P (con)) /* make sure the delete-*-hook didn't
+ − 761 go ahead and delete anything */
+ − 762 {
+ − 763 UNGCPRO;
+ − 764 return;
+ − 765 }
+ − 766 }
+ − 767
+ − 768 CONSOLE_DEVICE_LOOP (devcons, con)
+ − 769 {
+ − 770 struct device *d = XDEVICE (XCAR (devcons));
+ − 771 /* delete_device_internal() might do anything such as run hooks,
+ − 772 so be defensive. */
+ − 773 if (DEVICE_LIVE_P (d))
+ − 774 delete_device_internal (d, 1, 1, from_io_error);
+ − 775 if (!CONSOLE_LIVE_P (con)) /* make sure the delete-*-hook didn't
+ − 776 go ahead and delete anything */
+ − 777 {
+ − 778 UNGCPRO;
+ − 779 return;
+ − 780 }
+ − 781 }
+ − 782 }
+ − 783
+ − 784 CONSOLE_SELECTED_DEVICE (con) = Qnil;
+ − 785
+ − 786 /* try to select another console */
+ − 787
+ − 788 if (EQ (console, Fselected_console ()))
+ − 789 {
+ − 790 Lisp_Object other_dev = find_other_console (console);
+ − 791 if (!NILP (other_dev))
+ − 792 Fselect_console (other_dev);
+ − 793 else
+ − 794 {
+ − 795 /* necessary? */
+ − 796 Vselected_console = Qnil;
+ − 797 Vwindow_system = Qnil;
+ − 798 }
+ − 799 }
+ − 800
+ − 801 if (con->input_enabled)
+ − 802 event_stream_unselect_console (con);
+ − 803
+ − 804 MAYBE_CONMETH (con, delete_console, (con));
+ − 805
+ − 806 Vconsole_list = delq_no_quit (console, Vconsole_list);
617
+ − 807
428
+ − 808 RESET_CHANGED_SET_FLAGS;
617
+ − 809
+ − 810 /* Nobody should be accessing anything in this object any more, and
+ − 811 making all Lisp_Objects Qnil allows for better GC'ing in case a
+ − 812 pointer to the dead console continues to hang around. Zero all
+ − 813 other structs in case someone tries to access something through
+ − 814 them. */
+ − 815 nuke_all_console_slots (con, Qnil);
428
+ − 816 con->conmeths = dead_console_methods;
1204
+ − 817 con->contype = dead_console;
853
+ − 818 note_object_deleted (console);
428
+ − 819
+ − 820 UNGCPRO;
+ − 821 }
+ − 822
+ − 823 void
+ − 824 io_error_delete_console (Lisp_Object console)
+ − 825 {
+ − 826 delete_console_internal (XCONSOLE (console), 1, 0, 1);
+ − 827 }
+ − 828
+ − 829 DEFUN ("delete-console", Fdelete_console, 1, 2, 0, /*
+ − 830 Delete CONSOLE, permanently eliminating it from use.
+ − 831 Normally, you cannot delete the last non-minibuffer-only frame (you must
+ − 832 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional
+ − 833 second argument FORCE is non-nil, you can delete the last frame. (This
+ − 834 will automatically call `save-buffers-kill-emacs'.)
+ − 835 */
+ − 836 (console, force))
+ − 837 {
+ − 838 CHECK_CONSOLE (console);
+ − 839 delete_console_internal (XCONSOLE (console), !NILP (force), 0, 0);
+ − 840 return Qnil;
+ − 841 }
+ − 842
+ − 843 DEFUN ("console-list", Fconsole_list, 0, 0, 0, /*
+ − 844 Return a list of all consoles.
+ − 845 */
+ − 846 ())
+ − 847 {
+ − 848 return Fcopy_sequence (Vconsole_list);
+ − 849 }
+ − 850
+ − 851 DEFUN ("console-device-list", Fconsole_device_list, 0, 1, 0, /*
+ − 852 Return a list of all devices on CONSOLE.
444
+ − 853 If CONSOLE is nil, the selected console is used.
428
+ − 854 */
+ − 855 (console))
+ − 856 {
+ − 857 return Fcopy_sequence (CONSOLE_DEVICE_LIST (decode_console (console)));
+ − 858 }
+ − 859
+ − 860 DEFUN ("console-enable-input", Fconsole_enable_input, 1, 1, 0, /*
+ − 861 Enable input on console CONSOLE.
+ − 862 */
+ − 863 (console))
+ − 864 {
+ − 865 struct console *con = decode_console (console);
+ − 866 if (!con->input_enabled)
+ − 867 event_stream_select_console (con);
+ − 868 return Qnil;
+ − 869 }
+ − 870
+ − 871 DEFUN ("console-disable-input", Fconsole_disable_input, 1, 1, 0, /*
+ − 872 Disable input on console CONSOLE.
+ − 873 */
+ − 874 (console))
+ − 875 {
+ − 876 struct console *con = decode_console (console);
+ − 877 if (con->input_enabled)
+ − 878 event_stream_unselect_console (con);
+ − 879 return Qnil;
+ − 880 }
+ − 881
+ − 882 DEFUN ("console-on-window-system-p", Fconsole_on_window_system_p, 0, 1, 0, /*
444
+ − 883 Return t if CONSOLE is on a window system.
+ − 884 If CONSOLE is nil, the selected console is used.
428
+ − 885 This generally means that there is support for the mouse, the menubar,
+ − 886 the toolbar, glyphs, etc.
+ − 887 */
+ − 888 (console))
+ − 889 {
+ − 890 Lisp_Object type = CONSOLE_TYPE (decode_console (console));
+ − 891
+ − 892 return !EQ (type, Qtty) && !EQ (type, Qstream) ? Qt : Qnil;
+ − 893 }
+ − 894
+ − 895
+ − 896
+ − 897 /**********************************************************************/
+ − 898 /* Miscellaneous low-level functions */
+ − 899 /**********************************************************************/
+ − 900
+ − 901 static Lisp_Object
+ − 902 unwind_init_sys_modes (Lisp_Object console)
+ − 903 {
+ − 904 reinit_initial_console ();
+ − 905
+ − 906 if (!no_redraw_on_reenter &&
+ − 907 CONSOLEP (console) &&
+ − 908 CONSOLE_LIVE_P (XCONSOLE (console)))
+ − 909 {
+ − 910 struct frame *f =
+ − 911 XFRAME (DEVICE_SELECTED_FRAME
+ − 912 (XDEVICE (CONSOLE_SELECTED_DEVICE (XCONSOLE (console)))));
+ − 913 MARK_FRAME_CHANGED (f);
+ − 914 }
+ − 915 return Qnil;
+ − 916 }
+ − 917
+ − 918 DEFUN ("suspend-emacs", Fsuspend_emacs, 0, 1, "", /*
+ − 919 Stop Emacs and return to superior process. You can resume later.
+ − 920 On systems that don't have job control, run a subshell instead.
+ − 921
+ − 922 If optional arg STUFFSTRING is non-nil, its characters are stuffed
+ − 923 to be read as terminal input by Emacs's superior shell.
+ − 924
+ − 925 Before suspending, run the normal hook `suspend-hook'.
+ − 926 After resumption run the normal hook `suspend-resume-hook'.
+ − 927
+ − 928 Some operating systems cannot stop the Emacs process and resume it later.
+ − 929 On such systems, Emacs will start a subshell and wait for it to exit.
+ − 930 */
+ − 931 (stuffstring))
+ − 932 {
+ − 933 int speccount = specpdl_depth ();
+ − 934 struct gcpro gcpro1;
+ − 935
+ − 936 if (!NILP (stuffstring))
+ − 937 CHECK_STRING (stuffstring);
+ − 938 GCPRO1 (stuffstring);
+ − 939
+ − 940 /* There used to be a check that the initial console is TTY.
+ − 941 This is bogus. Even checking to see whether any console
+ − 942 is a controlling terminal is not correct -- maybe
+ − 943 the user used the -t option or something. If we want to
+ − 944 suspend, then we suspend. Period. */
+ − 945
+ − 946 /* Call value of suspend-hook. */
+ − 947 run_hook (Qsuspend_hook);
+ − 948
+ − 949 reset_initial_console ();
+ − 950 /* sys_suspend can get an error if it tries to fork a subshell
+ − 951 and the system resources aren't available for that. */
+ − 952 record_unwind_protect (unwind_init_sys_modes, Vcontrolling_terminal);
+ − 953 stuff_buffered_input (stuffstring);
+ − 954 sys_suspend ();
+ − 955 /* the console is un-reset inside of the unwind-protect. */
771
+ − 956 unbind_to (speccount);
428
+ − 957
+ − 958 #ifdef SIGWINCH
+ − 959 /* It is possible that a size change occurred while we were
+ − 960 suspended. Assume one did just to be safe. It won't hurt
+ − 961 anything if one didn't. */
+ − 962 asynch_device_change_pending++;
+ − 963 #endif
+ − 964
+ − 965 /* Call value of suspend-resume-hook
+ − 966 if it is bound and value is non-nil. */
+ − 967 run_hook (Qsuspend_resume_hook);
+ − 968
+ − 969 UNGCPRO;
+ − 970 return Qnil;
+ − 971 }
+ − 972
+ − 973 /* If STUFFSTRING is a string, stuff its contents as pending terminal input.
+ − 974 Then in any case stuff anything Emacs has read ahead and not used. */
+ − 975
+ − 976 void
+ − 977 stuff_buffered_input (Lisp_Object stuffstring)
+ − 978 {
+ − 979 /* stuff_char works only in BSD, versions 4.2 and up. */
+ − 980 #if defined (BSD)
+ − 981 if (!CONSOLEP (Vcontrolling_terminal) ||
+ − 982 !CONSOLE_LIVE_P (XCONSOLE (Vcontrolling_terminal)))
+ − 983 return;
+ − 984
+ − 985 if (STRINGP (stuffstring))
+ − 986 {
665
+ − 987 Bytecount count;
428
+ − 988 Extbyte *p;
+ − 989
440
+ − 990 TO_EXTERNAL_FORMAT (LISP_STRING, stuffstring,
+ − 991 ALLOCA, (p, count),
+ − 992 Qkeyboard);
428
+ − 993 while (count-- > 0)
+ − 994 stuff_char (XCONSOLE (Vcontrolling_terminal), *p++);
+ − 995 stuff_char (XCONSOLE (Vcontrolling_terminal), '\n');
+ − 996 }
+ − 997 /* Anything we have read ahead, put back for the shell to read. */
+ − 998 # if 0 /* oh, who cares about this silliness */
+ − 999 while (kbd_fetch_ptr != kbd_store_ptr)
+ − 1000 {
+ − 1001 if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE)
+ − 1002 kbd_fetch_ptr = kbd_buffer;
+ − 1003 stuff_char (XCONSOLE (Vcontrolling_terminal), *kbd_fetch_ptr++);
+ − 1004 }
+ − 1005 # endif
+ − 1006 #endif /* BSD */
+ − 1007 }
+ − 1008
+ − 1009 DEFUN ("suspend-console", Fsuspend_console, 0, 1, "", /*
+ − 1010 Suspend a console. For tty consoles, it sends a signal to suspend
+ − 1011 the process in charge of the tty, and removes the devices and
+ − 1012 frames of that console from the display.
+ − 1013
+ − 1014 If optional arg CONSOLE is non-nil, it is the console to be suspended.
+ − 1015 Otherwise it is assumed to be the selected console.
+ − 1016
+ − 1017 Some operating systems cannot stop processes and resume them later.
+ − 1018 On such systems, who knows what will happen.
+ − 1019 */
+ − 1020 (console))
+ − 1021 {
+ − 1022 #ifdef HAVE_TTY
+ − 1023 struct console *con = decode_console (console);
+ − 1024
+ − 1025 if (CONSOLE_TTY_P (con))
+ − 1026 {
+ − 1027 /*
+ − 1028 * hide all the unhidden frames so the display code won't update
+ − 1029 * them while the console is suspended.
+ − 1030 */
+ − 1031 Lisp_Object device = CONSOLE_SELECTED_DEVICE (con);
+ − 1032 if (!NILP (device))
+ − 1033 {
+ − 1034 struct device *d = XDEVICE (device);
+ − 1035 Lisp_Object frame_list = DEVICE_FRAME_LIST (d);
+ − 1036 while (CONSP (frame_list))
+ − 1037 {
+ − 1038 struct frame *f = XFRAME (XCAR (frame_list));
+ − 1039 if (FRAME_REPAINT_P (f))
+ − 1040 f->visible = -1;
+ − 1041 frame_list = XCDR (frame_list);
+ − 1042 }
+ − 1043 }
+ − 1044 reset_one_console (con);
+ − 1045 event_stream_unselect_console (con);
+ − 1046 sys_suspend_process (XINT (Fconsole_tty_controlling_process (console)));
+ − 1047 }
+ − 1048 #endif /* HAVE_TTY */
+ − 1049
+ − 1050 return Qnil;
+ − 1051 }
+ − 1052
+ − 1053 DEFUN ("resume-console", Fresume_console, 1, 1, "", /*
+ − 1054 Re-initialize a previously suspended console.
+ − 1055 For tty consoles, do stuff to the tty to make it sane again.
+ − 1056 */
+ − 1057 (console))
+ − 1058 {
+ − 1059 #ifdef HAVE_TTY
+ − 1060 struct console *con = decode_console (console);
+ − 1061
+ − 1062 if (CONSOLE_TTY_P (con))
+ − 1063 {
+ − 1064 /* raise the selected frame */
+ − 1065 Lisp_Object device = CONSOLE_SELECTED_DEVICE (con);
+ − 1066 if (!NILP (device))
+ − 1067 {
+ − 1068 struct device *d = XDEVICE (device);
+ − 1069 Lisp_Object frame = DEVICE_SELECTED_FRAME (d);
+ − 1070 if (!NILP (frame))
+ − 1071 {
+ − 1072 /* force the frame to be cleared */
+ − 1073 SET_FRAME_CLEAR (XFRAME (frame));
+ − 1074 Fraise_frame (frame);
+ − 1075 }
+ − 1076 }
+ − 1077 init_one_console (con);
+ − 1078 event_stream_select_console (con);
+ − 1079 #ifdef SIGWINCH
+ − 1080 /* The same as in Fsuspend_emacs: it is possible that a size
+ − 1081 change occurred while we were suspended. Assume one did just
+ − 1082 to be safe. It won't hurt anything if one didn't. */
+ − 1083 asynch_device_change_pending++;
+ − 1084 #endif
+ − 1085 }
+ − 1086 #endif /* HAVE_TTY */
+ − 1087
+ − 1088 return Qnil;
+ − 1089 }
+ − 1090
+ − 1091 DEFUN ("set-input-mode", Fset_input_mode, 3, 5, 0, /*
+ − 1092 Set mode of reading keyboard input.
1204
+ − 1093 First arg (formerly INTERRUPT-INPUT) is ignored, for backward compatibility.
428
+ − 1094 Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal
+ − 1095 (no effect except in CBREAK mode).
+ − 1096 Third arg META t means accept 8-bit input (for a Meta key).
+ − 1097 META nil means ignore the top bit, on the assumption it is parity.
+ − 1098 Otherwise, accept 8-bit input and don't use the top bit for Meta.
+ − 1099 First three arguments only apply to TTY consoles.
+ − 1100 Optional fourth arg QUIT if non-nil specifies character to use for quitting.
+ − 1101 Optional fifth arg CONSOLE specifies console to make changes to; nil means
+ − 1102 the selected console.
+ − 1103 See also `current-input-mode'.
+ − 1104 */
+ − 1105 (ignored, flow, meta, quit, console))
+ − 1106 {
+ − 1107 struct console *con = decode_console (console);
+ − 1108 int meta_key = (!CONSOLE_TTY_P (con) ? 1 :
+ − 1109 EQ (meta, Qnil) ? 0 :
+ − 1110 EQ (meta, Qt) ? 1 :
+ − 1111 2);
+ − 1112
+ − 1113 if (!NILP (quit))
+ − 1114 {
1204
+ − 1115 if (CHAR_OR_CHAR_INTP (quit) && !meta_key)
+ − 1116 set_quit_events (con, make_char (XCHAR_OR_CHAR_INT (quit) & 0177));
+ − 1117 else
+ − 1118 set_quit_events (con, quit);
428
+ − 1119 }
+ − 1120
+ − 1121 #ifdef HAVE_TTY
+ − 1122 if (CONSOLE_TTY_P (con))
+ − 1123 {
+ − 1124 reset_one_console (con);
+ − 1125 TTY_FLAGS (con).flow_control = !NILP (flow);
+ − 1126 TTY_FLAGS (con).meta_key = meta_key;
+ − 1127 init_one_console (con);
444
+ − 1128 MARK_FRAME_CHANGED (XFRAME (CONSOLE_SELECTED_FRAME (con)));
428
+ − 1129 }
+ − 1130 #endif
+ − 1131
+ − 1132 return Qnil;
+ − 1133 }
+ − 1134
+ − 1135 DEFUN ("current-input-mode", Fcurrent_input_mode, 0, 1, 0, /*
+ − 1136 Return information about the way Emacs currently reads keyboard input.
+ − 1137 Optional arg CONSOLE specifies console to return information about; nil means
+ − 1138 the selected console.
+ − 1139 The value is a list of the form (nil FLOW META QUIT), where
+ − 1140 FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the
+ − 1141 terminal; this does not apply if Emacs uses interrupt-driven input.
+ − 1142 META is t if accepting 8-bit input with 8th bit as Meta flag.
+ − 1143 META nil means ignoring the top bit, on the assumption it is parity.
+ − 1144 META is neither t nor nil if accepting 8-bit input and using
+ − 1145 all 8 bits as the character code.
+ − 1146 QUIT is the character Emacs currently uses to quit.
+ − 1147 FLOW, and META are only meaningful for TTY consoles.
+ − 1148 The elements of this list correspond to the arguments of
+ − 1149 `set-input-mode'.
+ − 1150 */
+ − 1151 (console))
+ − 1152 {
+ − 1153 struct console *con = decode_console (console);
1204
+ − 1154 Lisp_Object flow, meta;
428
+ − 1155
+ − 1156 #ifdef HAVE_TTY
+ − 1157 flow = CONSOLE_TTY_P (con) && TTY_FLAGS (con).flow_control ? Qt : Qnil;
+ − 1158 meta = (!CONSOLE_TTY_P (con) ? Qt :
+ − 1159 TTY_FLAGS (con).meta_key == 1 ? Qt :
+ − 1160 TTY_FLAGS (con).meta_key == 2 ? Qzero :
+ − 1161 Qnil);
+ − 1162 #else
+ − 1163 flow = Qnil;
+ − 1164 meta = Qt;
+ − 1165 #endif
+ − 1166
1204
+ − 1167 return list4 (Qnil, flow, meta, CONSOLE_QUIT_CHAR (con));
428
+ − 1168 }
+ − 1169
+ − 1170
+ − 1171 /************************************************************************/
+ − 1172 /* initialization */
+ − 1173 /************************************************************************/
+ − 1174
+ − 1175 void
+ − 1176 syms_of_console (void)
+ − 1177 {
442
+ − 1178 INIT_LRECORD_IMPLEMENTATION (console);
+ − 1179
428
+ − 1180 DEFSUBR (Fvalid_console_type_p);
+ − 1181 DEFSUBR (Fconsole_type_list);
+ − 1182 DEFSUBR (Fcdfw_console);
+ − 1183 DEFSUBR (Fselected_console);
+ − 1184 DEFSUBR (Fselect_console);
+ − 1185 DEFSUBR (Fconsolep);
+ − 1186 DEFSUBR (Fconsole_live_p);
+ − 1187 DEFSUBR (Fconsole_type);
+ − 1188 DEFSUBR (Fconsole_name);
+ − 1189 DEFSUBR (Fconsole_connection);
+ − 1190 DEFSUBR (Ffind_console);
+ − 1191 DEFSUBR (Fget_console);
+ − 1192 DEFSUBR (Fdelete_console);
+ − 1193 DEFSUBR (Fconsole_list);
+ − 1194 DEFSUBR (Fconsole_device_list);
+ − 1195 DEFSUBR (Fconsole_enable_input);
+ − 1196 DEFSUBR (Fconsole_disable_input);
+ − 1197 DEFSUBR (Fconsole_on_window_system_p);
+ − 1198 DEFSUBR (Fsuspend_console);
+ − 1199 DEFSUBR (Fresume_console);
+ − 1200
+ − 1201 DEFSUBR (Fsuspend_emacs);
+ − 1202 DEFSUBR (Fset_input_mode);
+ − 1203 DEFSUBR (Fcurrent_input_mode);
+ − 1204
563
+ − 1205 DEFSYMBOL (Qconsolep);
+ − 1206 DEFSYMBOL (Qconsole_live_p);
428
+ − 1207
563
+ − 1208 DEFSYMBOL (Qcreate_console_hook);
+ − 1209 DEFSYMBOL (Qdelete_console_hook);
428
+ − 1210
563
+ − 1211 DEFSYMBOL (Qsuspend_hook);
+ − 1212 DEFSYMBOL (Qsuspend_resume_hook);
428
+ − 1213 }
+ − 1214
1204
+ − 1215 static const struct memory_description cte_description_1[] = {
440
+ − 1216 { XD_LISP_OBJECT, offsetof (console_type_entry, symbol) },
+ − 1217 { XD_STRUCT_PTR, offsetof (console_type_entry, meths), 1, &console_methods_description },
428
+ − 1218 { XD_END }
+ − 1219 };
+ − 1220
1204
+ − 1221 static const struct sized_memory_description cte_description = {
440
+ − 1222 sizeof (console_type_entry),
428
+ − 1223 cte_description_1
+ − 1224 };
+ − 1225
1204
+ − 1226 static const struct memory_description cted_description_1[] = {
440
+ − 1227 XD_DYNARR_DESC (console_type_entry_dynarr, &cte_description),
428
+ − 1228 { XD_END }
+ − 1229 };
+ − 1230
1204
+ − 1231 const struct sized_memory_description cted_description = {
440
+ − 1232 sizeof (console_type_entry_dynarr),
428
+ − 1233 cted_description_1
+ − 1234 };
+ − 1235
1204
+ − 1236 static const struct memory_description console_methods_description_1[] = {
440
+ − 1237 { XD_LISP_OBJECT, offsetof (struct console_methods, symbol) },
+ − 1238 { XD_LISP_OBJECT, offsetof (struct console_methods, predicate_symbol) },
+ − 1239 { XD_LISP_OBJECT, offsetof (struct console_methods, image_conversion_list) },
428
+ − 1240 { XD_END }
+ − 1241 };
+ − 1242
1204
+ − 1243 const struct sized_memory_description console_methods_description = {
440
+ − 1244 sizeof (struct console_methods),
428
+ − 1245 console_methods_description_1
+ − 1246 };
+ − 1247
+ − 1248
+ − 1249 void
+ − 1250 console_type_create (void)
+ − 1251 {
+ − 1252 the_console_type_entry_dynarr = Dynarr_new (console_type_entry);
452
+ − 1253 dump_add_root_struct_ptr (&the_console_type_entry_dynarr, &cted_description);
428
+ − 1254
+ − 1255 Vconsole_type_list = Qnil;
+ − 1256 staticpro (&Vconsole_type_list);
+ − 1257
+ − 1258 /* Initialize the dead console type */
+ − 1259 INITIALIZE_CONSOLE_TYPE (dead, "dead", "console-dead-p");
+ − 1260
+ − 1261 /* then reset the console-type lists, because `dead' is not really
+ − 1262 a valid console type */
+ − 1263 Dynarr_reset (the_console_type_entry_dynarr);
+ − 1264 Vconsole_type_list = Qnil;
+ − 1265 }
+ − 1266
+ − 1267 void
+ − 1268 reinit_vars_of_console (void)
+ − 1269 {
+ − 1270 staticpro_nodump (&Vconsole_list);
+ − 1271 Vconsole_list = Qnil;
+ − 1272 staticpro_nodump (&Vselected_console);
+ − 1273 Vselected_console = Qnil;
+ − 1274 }
+ − 1275
+ − 1276 void
+ − 1277 vars_of_console (void)
+ − 1278 {
+ − 1279 reinit_vars_of_console ();
+ − 1280
+ − 1281 DEFVAR_LISP ("create-console-hook", &Vcreate_console_hook /*
+ − 1282 Function or functions to call when a console is created.
+ − 1283 One argument, the newly-created console.
+ − 1284 This is called after the first frame has been created, but before
+ − 1285 calling the `create-device-hook' or `create-frame-hook'.
+ − 1286 Note that in general the console will not be selected.
+ − 1287 */ );
+ − 1288 Vcreate_console_hook = Qnil;
+ − 1289
+ − 1290 DEFVAR_LISP ("delete-console-hook", &Vdelete_console_hook /*
+ − 1291 Function or functions to call when a console is deleted.
+ − 1292 One argument, the to-be-deleted console.
+ − 1293 */ );
+ − 1294 Vdelete_console_hook = Qnil;
+ − 1295
+ − 1296 #ifdef HAVE_WINDOW_SYSTEM
+ − 1297 Fprovide (intern ("window-system"));
+ − 1298 #endif
+ − 1299 }
+ − 1300
643
+ − 1301 /* The docstrings for DEFVAR_* are recorded externally by make-docfile. */
617
+ − 1302 #define DEFVAR_CONSOLE_LOCAL_1(lname, field_name, forward_type, magicfun) \
+ − 1303 do { \
+ − 1304 static const struct symbol_value_forward I_hate_C = \
+ − 1305 { /* struct symbol_value_forward */ \
+ − 1306 { /* struct symbol_value_magic */ \
+ − 1307 { /* struct lcrecord_header */ \
+ − 1308 { /* struct lrecord_header */ \
+ − 1309 lrecord_type_symbol_value_forward, /* lrecord_type_index */ \
+ − 1310 1, /* mark bit */ \
+ − 1311 1, /* c_readonly bit */ \
+ − 1312 1 /* lisp_readonly bit */ \
+ − 1313 }, \
+ − 1314 0, /* next */ \
+ − 1315 0, /* uid */ \
+ − 1316 0 /* free */ \
+ − 1317 }, \
+ − 1318 &(console_local_flags.field_name), \
+ − 1319 forward_type \
+ − 1320 }, \
+ − 1321 magicfun \
+ − 1322 }; \
+ − 1323 \
+ − 1324 { \
+ − 1325 int offset = ((char *)symbol_value_forward_forward (&I_hate_C) \
+ − 1326 - (char *)&console_local_flags); \
+ − 1327 \
+ − 1328 defvar_magic (lname, &I_hate_C); \
+ − 1329 \
+ − 1330 *((Lisp_Object *)(offset + (char *)XCONSOLE (Vconsole_local_symbols))) \
+ − 1331 = intern (lname); \
+ − 1332 } \
428
+ − 1333 } while (0)
+ − 1334
+ − 1335 #define DEFVAR_CONSOLE_LOCAL_MAGIC(lname, field_name, magicfun) \
+ − 1336 DEFVAR_CONSOLE_LOCAL_1 (lname, field_name, \
+ − 1337 SYMVAL_SELECTED_CONSOLE_FORWARD, magicfun)
+ − 1338 #define DEFVAR_CONSOLE_LOCAL(lname, field_name) \
+ − 1339 DEFVAR_CONSOLE_LOCAL_MAGIC (lname, field_name, 0)
+ − 1340 #define DEFVAR_CONST_CONSOLE_LOCAL_MAGIC(lname, field_name, magicfun) \
+ − 1341 DEFVAR_CONSOLE_LOCAL_1 (lname, field_name, \
+ − 1342 SYMVAL_CONST_SELECTED_CONSOLE_FORWARD, magicfun)
+ − 1343 #define DEFVAR_CONST_CONSOLE_LOCAL(lname, field_name) \
+ − 1344 DEFVAR_CONST_CONSOLE_LOCAL_MAGIC (lname, field_name, 0)
+ − 1345
+ − 1346 #define DEFVAR_CONSOLE_DEFAULTS_MAGIC(lname, field_name, magicfun) \
+ − 1347 DEFVAR_SYMVAL_FWD(lname, &(console_local_flags.field_name), \
+ − 1348 SYMVAL_DEFAULT_CONSOLE_FORWARD, magicfun)
+ − 1349 #define DEFVAR_CONSOLE_DEFAULTS(lname, field_name) \
+ − 1350 DEFVAR_CONSOLE_DEFAULTS_MAGIC (lname, field_name, 0)
+ − 1351
+ − 1352 static void
+ − 1353 common_init_complex_vars_of_console (void)
+ − 1354 {
+ − 1355 /* Make sure all markable slots in console_defaults
+ − 1356 are initialized reasonably, so mark_console won't choke.
+ − 1357 */
+ − 1358 struct console *defs = alloc_lcrecord_type (struct console, &lrecord_console);
+ − 1359 struct console *syms = alloc_lcrecord_type (struct console, &lrecord_console);
+ − 1360
+ − 1361 staticpro_nodump (&Vconsole_defaults);
+ − 1362 staticpro_nodump (&Vconsole_local_symbols);
793
+ − 1363 Vconsole_defaults = wrap_console (defs);
+ − 1364 Vconsole_local_symbols = wrap_console (syms);
428
+ − 1365
+ − 1366 nuke_all_console_slots (syms, Qnil);
+ − 1367 nuke_all_console_slots (defs, Qnil);
+ − 1368
+ − 1369 /* Set up the non-nil default values of various console slots.
+ − 1370 Must do these before making the first console.
+ − 1371 */
1204
+ − 1372
+ − 1373 /* ... Nothing here for the moment.
+ − 1374 #### Console-local variables should probably be eliminated.*/
428
+ − 1375
+ − 1376 {
+ − 1377 /* 0 means var is always local. Default used only at creation.
+ − 1378 * -1 means var is always local. Default used only at reset and
+ − 1379 * creation.
+ − 1380 * -2 means there's no lisp variable corresponding to this slot
+ − 1381 * and the default is only used at creation.
+ − 1382 * -3 means no Lisp variable. Default used only at reset and creation.
+ − 1383 * >0 is mask. Var is local if ((console->local_var_flags & mask) != 0)
+ − 1384 * Otherwise default is used.
+ − 1385 *
+ − 1386 * #### We don't currently ever reset console variables, so there
+ − 1387 * is no current distinction between 0 and -1, and between -2 and -3.
+ − 1388 */
+ − 1389 Lisp_Object always_local_resettable = make_int (-1);
+ − 1390
+ − 1391 #if 0 /* not used */
+ − 1392 Lisp_Object always_local_no_default = make_int (0);
+ − 1393 Lisp_Object resettable = make_int (-3);
+ − 1394 #endif
+ − 1395
+ − 1396 /* Assign the local-flags to the slots that have default values.
+ − 1397 The local flag is a bit that is used in the console
+ − 1398 to say that it has its own local value for the slot.
+ − 1399 The local flag bits are in the local_var_flags slot of the
+ − 1400 console. */
+ − 1401
+ − 1402 nuke_all_console_slots (&console_local_flags, make_int (-2));
+ − 1403 console_local_flags.defining_kbd_macro = always_local_resettable;
+ − 1404 console_local_flags.last_kbd_macro = always_local_resettable;
+ − 1405 console_local_flags.prefix_arg = always_local_resettable;
+ − 1406 console_local_flags.default_minibuffer_frame = always_local_resettable;
+ − 1407 console_local_flags.overriding_terminal_local_map =
+ − 1408 always_local_resettable;
+ − 1409 #ifdef HAVE_TTY
+ − 1410 console_local_flags.tty_erase_char = always_local_resettable;
+ − 1411 #endif
+ − 1412
+ − 1413 console_local_flags.function_key_map = make_int (1);
+ − 1414
+ − 1415 /* #### Warning, 0x4000000 (that's six zeroes) is the largest number
+ − 1416 currently allowable due to the XINT() handling of this value.
+ − 1417 With some rearrangement you can get 4 more bits. */
+ − 1418 }
+ − 1419 }
+ − 1420
+ − 1421
+ − 1422 #define CONSOLE_SLOTS_SIZE (offsetof (struct console, CONSOLE_SLOTS_LAST_NAME) - offsetof (struct console, CONSOLE_SLOTS_FIRST_NAME) + sizeof (Lisp_Object))
+ − 1423 #define CONSOLE_SLOTS_COUNT (CONSOLE_SLOTS_SIZE / sizeof (Lisp_Object))
+ − 1424
+ − 1425 void
771
+ − 1426 reinit_complex_vars_of_console_runtime_only (void)
428
+ − 1427 {
+ − 1428 struct console *defs, *syms;
+ − 1429
+ − 1430 common_init_complex_vars_of_console ();
+ − 1431
+ − 1432 defs = XCONSOLE (Vconsole_defaults);
+ − 1433 syms = XCONSOLE (Vconsole_local_symbols);
+ − 1434 memcpy (&defs->CONSOLE_SLOTS_FIRST_NAME,
+ − 1435 console_defaults_saved_slots,
+ − 1436 CONSOLE_SLOTS_SIZE);
+ − 1437 memcpy (&syms->CONSOLE_SLOTS_FIRST_NAME,
+ − 1438 console_local_symbols_saved_slots,
+ − 1439 CONSOLE_SLOTS_SIZE);
+ − 1440 }
+ − 1441
+ − 1442
1204
+ − 1443 static const struct memory_description console_slots_description_1[] = {
440
+ − 1444 { XD_LISP_OBJECT_ARRAY, 0, CONSOLE_SLOTS_COUNT },
428
+ − 1445 { XD_END }
+ − 1446 };
+ − 1447
1204
+ − 1448 static const struct sized_memory_description console_slots_description = {
428
+ − 1449 CONSOLE_SLOTS_SIZE,
+ − 1450 console_slots_description_1
+ − 1451 };
+ − 1452
+ − 1453 void
+ − 1454 complex_vars_of_console (void)
+ − 1455 {
+ − 1456 struct console *defs, *syms;
+ − 1457
+ − 1458 common_init_complex_vars_of_console ();
+ − 1459
+ − 1460 defs = XCONSOLE (Vconsole_defaults);
+ − 1461 syms = XCONSOLE (Vconsole_local_symbols);
+ − 1462 console_defaults_saved_slots = &defs->CONSOLE_SLOTS_FIRST_NAME;
+ − 1463 console_local_symbols_saved_slots = &syms->CONSOLE_SLOTS_FIRST_NAME;
452
+ − 1464 dump_add_root_struct_ptr (&console_defaults_saved_slots, &console_slots_description);
+ − 1465 dump_add_root_struct_ptr (&console_local_symbols_saved_slots, &console_slots_description);
428
+ − 1466
+ − 1467 DEFVAR_CONSOLE_DEFAULTS ("default-function-key-map", function_key_map /*
+ − 1468 Default value of `function-key-map' for consoles that don't override it.
+ − 1469 This is the same as (default-value 'function-key-map).
+ − 1470 */ );
+ − 1471
+ − 1472 DEFVAR_CONSOLE_LOCAL ("function-key-map", function_key_map /*
+ − 1473 Keymap mapping ASCII function key sequences onto their preferred forms.
+ − 1474 This allows Emacs to recognize function keys sent from ASCII
+ − 1475 terminals at any point in a key sequence.
+ − 1476
+ − 1477 The `read-key-sequence' function replaces any subsequence bound by
+ − 1478 `function-key-map' with its binding. More precisely, when the active
+ − 1479 keymaps have no binding for the current key sequence but
+ − 1480 `function-key-map' binds a suffix of the sequence to a vector or string,
+ − 1481 `read-key-sequence' replaces the matching suffix with its binding, and
2027
+ − 1482 continues with the new sequence. See `key-binding'.
428
+ − 1483
+ − 1484 The events that come from bindings in `function-key-map' are not
+ − 1485 themselves looked up in `function-key-map'.
+ − 1486
+ − 1487 For example, suppose `function-key-map' binds `ESC O P' to [f1].
+ − 1488 Typing `ESC O P' to `read-key-sequence' would return
+ − 1489 \[#<keypress-event f1>]. Typing `C-x ESC O P' would return
+ − 1490 \[#<keypress-event control-X> #<keypress-event f1>]. If [f1]
+ − 1491 were a prefix key, typing `ESC O P x' would return
+ − 1492 \[#<keypress-event f1> #<keypress-event x>].
+ − 1493 */ );
+ − 1494
+ − 1495 #ifdef HAVE_TTY
440
+ − 1496 /* #### Should this somehow go to TTY data? How do we make it
428
+ − 1497 accessible from Lisp, then? */
+ − 1498 DEFVAR_CONSOLE_LOCAL ("tty-erase-char", tty_erase_char /*
+ − 1499 The ERASE character as set by the user with stty.
+ − 1500 When this value cannot be determined or would be meaningless (on non-TTY
+ − 1501 consoles, for example), it is set to nil.
+ − 1502 */ );
+ − 1503 #endif
+ − 1504
442
+ − 1505 /* While this should be const it can't be because some things
428
+ − 1506 (i.e. edebug) do manipulate it. */
+ − 1507 DEFVAR_CONSOLE_LOCAL ("defining-kbd-macro", defining_kbd_macro /*
442
+ − 1508 Non-nil while a keyboard macro is being defined. Don't set this!
428
+ − 1509 */ );
+ − 1510
+ − 1511 DEFVAR_CONSOLE_LOCAL ("last-kbd-macro", last_kbd_macro /*
442
+ − 1512 Last keyboard macro defined, as a vector of events; nil if none defined.
428
+ − 1513 */ );
+ − 1514
+ − 1515 DEFVAR_CONSOLE_LOCAL ("prefix-arg", prefix_arg /*
+ − 1516 The value of the prefix argument for the next editing command.
+ − 1517 It may be a number, or the symbol `-' for just a minus sign as arg,
+ − 1518 or a list whose car is a number for just one or more C-U's
+ − 1519 or nil if no argument has been specified.
+ − 1520
+ − 1521 You cannot examine this variable to find the argument for this command
+ − 1522 since it has been set to nil by the time you can look.
+ − 1523 Instead, you should use the variable `current-prefix-arg', although
+ − 1524 normally commands can get this prefix argument with (interactive "P").
+ − 1525 */ );
+ − 1526
+ − 1527 DEFVAR_CONSOLE_LOCAL ("default-minibuffer-frame",
+ − 1528 default_minibuffer_frame /*
+ − 1529 Minibufferless frames use this frame's minibuffer.
+ − 1530
+ − 1531 Emacs cannot create minibufferless frames unless this is set to an
+ − 1532 appropriate surrogate.
+ − 1533
+ − 1534 XEmacs consults this variable only when creating minibufferless
+ − 1535 frames; once the frame is created, it sticks with its assigned
+ − 1536 minibuffer, no matter what this variable is set to. This means that
+ − 1537 this variable doesn't necessarily say anything meaningful about the
+ − 1538 current set of frames, or where the minibuffer is currently being
+ − 1539 displayed.
+ − 1540 */ );
+ − 1541
+ − 1542 DEFVAR_CONSOLE_LOCAL ("overriding-terminal-local-map",
+ − 1543 overriding_terminal_local_map /*
+ − 1544 Keymap that overrides all other local keymaps, for the selected console only.
+ − 1545 If this variable is non-nil, it is used as a keymap instead of the
+ − 1546 buffer's local map, and the minor mode keymaps and text property keymaps.
+ − 1547 */ );
+ − 1548
+ − 1549 /* Check for DEFVAR_CONSOLE_LOCAL without initializing the corresponding
+ − 1550 slot of console_local_flags and vice-versa. Must be done after all
+ − 1551 DEFVAR_CONSOLE_LOCAL() calls. */
+ − 1552 #define MARKED_SLOT(slot) \
+ − 1553 if ((XINT (console_local_flags.slot) != -2 && \
+ − 1554 XINT (console_local_flags.slot) != -3) \
+ − 1555 != !(NILP (XCONSOLE (Vconsole_local_symbols)->slot))) \
1204
+ − 1556 abort ();
428
+ − 1557 #include "conslots.h"
+ − 1558 }
