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ed8dad6b | 1 | /* Functions related to terminal devices. |
73b0cd50 | 2 | Copyright (C) 2005-2011 Free Software Foundation, Inc. |
ed8dad6b KL |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
9ec0b715 | 6 | GNU Emacs is free software: you can redistribute it and/or modify |
ed8dad6b | 7 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
8 | the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. | |
ed8dad6b KL |
10 | |
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
ed8dad6b KL |
18 | |
19 | #include <config.h> | |
60f5c938 | 20 | #include <stdio.h> |
d7306fe6 | 21 | #include <setjmp.h> |
ed8dad6b KL |
22 | |
23 | #include "lisp.h" | |
24 | #include "frame.h" | |
25 | #include "termchar.h" | |
26 | #include "termhooks.h" | |
27 | #include "charset.h" | |
28 | #include "coding.h" | |
29 | #include "keyboard.h" | |
30 | ||
6ed8eeff KL |
31 | /* Chain of all terminals currently in use. */ |
32 | struct terminal *terminal_list; | |
ed8dad6b | 33 | |
6ed8eeff KL |
34 | /* The first unallocated terminal id. */ |
35 | static int next_terminal_id; | |
ed8dad6b | 36 | |
6ed8eeff KL |
37 | /* The initial terminal device, created by initial_term_init. */ |
38 | struct terminal *initial_terminal; | |
ed8dad6b | 39 | |
f57e2426 | 40 | static void delete_initial_terminal (struct terminal *); |
ed8dad6b KL |
41 | |
42 | \f | |
43 | ||
44 | void | |
45 | ring_bell (struct frame *f) | |
46 | { | |
47 | if (!NILP (Vring_bell_function)) | |
48 | { | |
49 | Lisp_Object function; | |
50 | ||
51 | /* Temporarily set the global variable to nil | |
52 | so that if we get an error, it stays nil | |
53 | and we don't call it over and over. | |
54 | ||
55 | We don't specbind it, because that would carefully | |
56 | restore the bad value if there's an error | |
57 | and make the loop of errors happen anyway. */ | |
58 | ||
59 | function = Vring_bell_function; | |
60 | Vring_bell_function = Qnil; | |
61 | ||
62 | call0 (function); | |
63 | ||
64 | Vring_bell_function = function; | |
65 | } | |
6ed8eeff KL |
66 | else if (FRAME_TERMINAL (f)->ring_bell_hook) |
67 | (*FRAME_TERMINAL (f)->ring_bell_hook) (f); | |
ed8dad6b KL |
68 | } |
69 | ||
70 | void | |
71 | update_begin (struct frame *f) | |
72 | { | |
6ed8eeff KL |
73 | if (FRAME_TERMINAL (f)->update_begin_hook) |
74 | (*FRAME_TERMINAL (f)->update_begin_hook) (f); | |
ed8dad6b KL |
75 | } |
76 | ||
77 | void | |
78 | update_end (struct frame *f) | |
79 | { | |
6ed8eeff KL |
80 | if (FRAME_TERMINAL (f)->update_end_hook) |
81 | (*FRAME_TERMINAL (f)->update_end_hook) (f); | |
ed8dad6b KL |
82 | } |
83 | ||
84 | /* Specify how many text lines, from the top of the window, | |
85 | should be affected by insert-lines and delete-lines operations. | |
86 | This, and those operations, are used only within an update | |
87 | that is bounded by calls to update_begin and update_end. */ | |
88 | ||
89 | void | |
90 | set_terminal_window (struct frame *f, int size) | |
91 | { | |
6ed8eeff KL |
92 | if (FRAME_TERMINAL (f)->set_terminal_window_hook) |
93 | (*FRAME_TERMINAL (f)->set_terminal_window_hook) (f, size); | |
ed8dad6b KL |
94 | } |
95 | ||
96 | /* Move cursor to row/column position VPOS/HPOS. HPOS/VPOS are | |
97 | frame-relative coordinates. */ | |
98 | ||
99 | void | |
100 | cursor_to (struct frame *f, int vpos, int hpos) | |
101 | { | |
6ed8eeff KL |
102 | if (FRAME_TERMINAL (f)->cursor_to_hook) |
103 | (*FRAME_TERMINAL (f)->cursor_to_hook) (f, vpos, hpos); | |
ed8dad6b KL |
104 | } |
105 | ||
106 | /* Similar but don't take any account of the wasted characters. */ | |
107 | ||
108 | void | |
109 | raw_cursor_to (struct frame *f, int row, int col) | |
110 | { | |
6ed8eeff KL |
111 | if (FRAME_TERMINAL (f)->raw_cursor_to_hook) |
112 | (*FRAME_TERMINAL (f)->raw_cursor_to_hook) (f, row, col); | |
ed8dad6b KL |
113 | } |
114 | ||
115 | /* Erase operations */ | |
116 | ||
117 | /* Clear from cursor to end of frame. */ | |
118 | void | |
119 | clear_to_end (struct frame *f) | |
120 | { | |
6ed8eeff KL |
121 | if (FRAME_TERMINAL (f)->clear_to_end_hook) |
122 | (*FRAME_TERMINAL (f)->clear_to_end_hook) (f); | |
ed8dad6b KL |
123 | } |
124 | ||
125 | /* Clear entire frame */ | |
126 | ||
127 | void | |
128 | clear_frame (struct frame *f) | |
129 | { | |
6ed8eeff KL |
130 | if (FRAME_TERMINAL (f)->clear_frame_hook) |
131 | (*FRAME_TERMINAL (f)->clear_frame_hook) (f); | |
ed8dad6b KL |
132 | } |
133 | ||
134 | /* Clear from cursor to end of line. | |
135 | Assume that the line is already clear starting at column first_unused_hpos. | |
136 | ||
137 | Note that the cursor may be moved, on terminals lacking a `ce' string. */ | |
138 | ||
139 | void | |
140 | clear_end_of_line (struct frame *f, int first_unused_hpos) | |
141 | { | |
6ed8eeff KL |
142 | if (FRAME_TERMINAL (f)->clear_end_of_line_hook) |
143 | (*FRAME_TERMINAL (f)->clear_end_of_line_hook) (f, first_unused_hpos); | |
ed8dad6b KL |
144 | } |
145 | ||
146 | /* Output LEN glyphs starting at STRING at the nominal cursor position. | |
147 | Advance the nominal cursor over the text. */ | |
148 | ||
149 | void | |
150 | write_glyphs (struct frame *f, struct glyph *string, int len) | |
151 | { | |
6ed8eeff KL |
152 | if (FRAME_TERMINAL (f)->write_glyphs_hook) |
153 | (*FRAME_TERMINAL (f)->write_glyphs_hook) (f, string, len); | |
ed8dad6b KL |
154 | } |
155 | ||
156 | /* Insert LEN glyphs from START at the nominal cursor position. | |
157 | ||
158 | If start is zero, insert blanks instead of a string at start */ | |
159 | ||
160 | void | |
161 | insert_glyphs (struct frame *f, struct glyph *start, int len) | |
162 | { | |
163 | if (len <= 0) | |
164 | return; | |
165 | ||
6ed8eeff KL |
166 | if (FRAME_TERMINAL (f)->insert_glyphs_hook) |
167 | (*FRAME_TERMINAL (f)->insert_glyphs_hook) (f, start, len); | |
ed8dad6b KL |
168 | } |
169 | ||
170 | /* Delete N glyphs at the nominal cursor position. */ | |
171 | ||
172 | void | |
173 | delete_glyphs (struct frame *f, int n) | |
174 | { | |
6ed8eeff KL |
175 | if (FRAME_TERMINAL (f)->delete_glyphs_hook) |
176 | (*FRAME_TERMINAL (f)->delete_glyphs_hook) (f, n); | |
ed8dad6b KL |
177 | } |
178 | ||
179 | /* Insert N lines at vpos VPOS. If N is negative, delete -N lines. */ | |
180 | ||
181 | void | |
182 | ins_del_lines (struct frame *f, int vpos, int n) | |
183 | { | |
6ed8eeff KL |
184 | if (FRAME_TERMINAL (f)->ins_del_lines_hook) |
185 | (*FRAME_TERMINAL (f)->ins_del_lines_hook) (f, vpos, n); | |
ed8dad6b KL |
186 | } |
187 | ||
188 | ||
189 | \f | |
190 | ||
e0c3684a CY |
191 | /* Return the terminal object specified by TERMINAL. TERMINAL may be |
192 | a terminal object, a frame, or nil for the terminal device of the | |
193 | current frame. If THROW is zero, return NULL for failure, | |
194 | otherwise throw an error. */ | |
ed8dad6b | 195 | |
6ed8eeff KL |
196 | struct terminal * |
197 | get_terminal (Lisp_Object terminal, int throw) | |
ed8dad6b | 198 | { |
6ed8eeff | 199 | struct terminal *result = NULL; |
ed8dad6b | 200 | |
6ed8eeff KL |
201 | if (NILP (terminal)) |
202 | terminal = selected_frame; | |
ed8dad6b | 203 | |
d30a25b3 SM |
204 | if (TERMINALP (terminal)) |
205 | result = XTERMINAL (terminal); | |
6ed8eeff | 206 | else if (FRAMEP (terminal)) |
e0c3684a | 207 | result = FRAME_TERMINAL (XFRAME (terminal)); |
ed8dad6b | 208 | |
d30a25b3 SM |
209 | if (result && !result->name) |
210 | result = NULL; | |
211 | ||
ed8dad6b | 212 | if (result == NULL && throw) |
6ed8eeff | 213 | wrong_type_argument (Qterminal_live_p, terminal); |
ed8dad6b KL |
214 | |
215 | return result; | |
216 | } | |
217 | ||
218 | \f | |
219 | ||
6ed8eeff | 220 | /* Create a new terminal object and add it to the terminal list. */ |
ed8dad6b | 221 | |
6ed8eeff KL |
222 | struct terminal * |
223 | create_terminal (void) | |
ed8dad6b | 224 | { |
d30a25b3 SM |
225 | struct terminal *terminal = allocate_terminal (); |
226 | ||
227 | terminal->name = NULL; | |
6ed8eeff KL |
228 | terminal->next_terminal = terminal_list; |
229 | terminal_list = terminal; | |
ed8dad6b | 230 | |
6ed8eeff | 231 | terminal->id = next_terminal_id++; |
ed8dad6b | 232 | |
6ed8eeff | 233 | terminal->keyboard_coding = |
ed8dad6b | 234 | (struct coding_system *) xmalloc (sizeof (struct coding_system)); |
6ed8eeff | 235 | terminal->terminal_coding = |
ed8dad6b KL |
236 | (struct coding_system *) xmalloc (sizeof (struct coding_system)); |
237 | ||
985773c9 MB |
238 | setup_coding_system (Qno_conversion, terminal->keyboard_coding); |
239 | setup_coding_system (Qundecided, terminal->terminal_coding); | |
ed8dad6b | 240 | |
6ed8eeff KL |
241 | terminal->param_alist = Qnil; |
242 | return terminal; | |
ed8dad6b KL |
243 | } |
244 | ||
ab797f65 KL |
245 | /* Low-level function to close all frames on a terminal, remove it |
246 | from the terminal list and free its memory. */ | |
ed8dad6b KL |
247 | |
248 | void | |
6ed8eeff | 249 | delete_terminal (struct terminal *terminal) |
ed8dad6b | 250 | { |
6ed8eeff | 251 | struct terminal **tp; |
ed8dad6b | 252 | Lisp_Object tail, frame; |
a98f1617 | 253 | |
56f2de10 | 254 | /* Protect against recursive calls. delete_frame calls the |
ab797f65 | 255 | delete_terminal_hook when we delete our last frame. */ |
d30a25b3 | 256 | if (!terminal->name) |
a98f1617 | 257 | return; |
d30a25b3 SM |
258 | xfree (terminal->name); |
259 | terminal->name = NULL; | |
a98f1617 | 260 | |
ab797f65 | 261 | /* Check for live frames that are still on this terminal. */ |
ed8dad6b KL |
262 | FOR_EACH_FRAME (tail, frame) |
263 | { | |
264 | struct frame *f = XFRAME (frame); | |
6ed8eeff | 265 | if (FRAME_LIVE_P (f) && f->terminal == terminal) |
ed8dad6b | 266 | { |
56f2de10 MR |
267 | /* Pass Qnoelisp rather than Qt. */ |
268 | delete_frame (frame, Qnoelisp); | |
ed8dad6b KL |
269 | } |
270 | } | |
271 | ||
6ed8eeff KL |
272 | for (tp = &terminal_list; *tp != terminal; tp = &(*tp)->next_terminal) |
273 | if (! *tp) | |
ed8dad6b | 274 | abort (); |
6ed8eeff KL |
275 | *tp = terminal->next_terminal; |
276 | ||
d30a25b3 SM |
277 | xfree (terminal->keyboard_coding); |
278 | terminal->keyboard_coding = NULL; | |
279 | xfree (terminal->terminal_coding); | |
280 | terminal->terminal_coding = NULL; | |
56f2de10 | 281 | |
6ed8eeff | 282 | if (terminal->kboard && --terminal->kboard->reference_count == 0) |
d30a25b3 SM |
283 | { |
284 | delete_kboard (terminal->kboard); | |
285 | terminal->kboard = NULL; | |
286 | } | |
ed8dad6b KL |
287 | } |
288 | ||
58555d81 SM |
289 | Lisp_Object Qrun_hook_with_args; |
290 | static Lisp_Object Qdelete_terminal_functions; | |
6ed8eeff KL |
291 | DEFUN ("delete-terminal", Fdelete_terminal, Sdelete_terminal, 0, 2, 0, |
292 | doc: /* Delete TERMINAL by deleting all frames on it and closing the terminal. | |
e173bbce CY |
293 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
294 | selected frame's terminal). | |
ed8dad6b KL |
295 | |
296 | Normally, you may not delete a display if all other displays are suspended, | |
297 | but if the second argument FORCE is non-nil, you may do so. */) | |
5842a27b | 298 | (Lisp_Object terminal, Lisp_Object force) |
ed8dad6b | 299 | { |
5b8de9c5 | 300 | struct terminal *t = get_terminal (terminal, 0); |
ed8dad6b | 301 | |
6ed8eeff | 302 | if (!t) |
ed8dad6b KL |
303 | return Qnil; |
304 | ||
5b8de9c5 SM |
305 | if (NILP (force)) |
306 | { | |
307 | struct terminal *p = terminal_list; | |
308 | while (p && (p == t || !TERMINAL_ACTIVE_P (p))) | |
309 | p = p->next_terminal; | |
56f2de10 | 310 | |
5b8de9c5 SM |
311 | if (!p) |
312 | error ("Attempt to delete the sole active display terminal"); | |
313 | } | |
ed8dad6b | 314 | |
58555d81 SM |
315 | if (NILP (Vrun_hooks)) |
316 | ; | |
317 | else if (EQ (force, Qnoelisp)) | |
318 | pending_funcalls | |
319 | = Fcons (list3 (Qrun_hook_with_args, | |
320 | Qdelete_terminal_functions, terminal), | |
321 | pending_funcalls); | |
322 | else | |
323 | safe_call2 (Qrun_hook_with_args, Qdelete_terminal_functions, terminal); | |
324 | ||
6ed8eeff KL |
325 | if (t->delete_terminal_hook) |
326 | (*t->delete_terminal_hook) (t); | |
ed8dad6b | 327 | else |
6ed8eeff | 328 | delete_terminal (t); |
ed8dad6b KL |
329 | |
330 | return Qnil; | |
331 | } | |
332 | ||
6ed8eeff KL |
333 | \f |
334 | DEFUN ("frame-terminal", Fframe_terminal, Sframe_terminal, 0, 1, 0, | |
335 | doc: /* Return the terminal that FRAME is displayed on. | |
336 | If FRAME is nil, the selected frame is used. | |
337 | ||
338 | The terminal device is represented by its integer identifier. */) | |
5842a27b | 339 | (Lisp_Object frame) |
6ed8eeff KL |
340 | { |
341 | struct terminal *t; | |
342 | ||
343 | if (NILP (frame)) | |
344 | frame = selected_frame; | |
345 | ||
346 | CHECK_LIVE_FRAME (frame); | |
347 | ||
d30a25b3 | 348 | t = FRAME_TERMINAL (XFRAME (frame)); |
6ed8eeff KL |
349 | |
350 | if (!t) | |
351 | return Qnil; | |
352 | else | |
d30a25b3 SM |
353 | { |
354 | Lisp_Object terminal; | |
355 | XSETTERMINAL (terminal, t); | |
356 | return terminal; | |
357 | } | |
6ed8eeff KL |
358 | } |
359 | ||
360 | DEFUN ("terminal-live-p", Fterminal_live_p, Sterminal_live_p, 1, 1, 0, | |
361 | doc: /* Return non-nil if OBJECT is a terminal which has not been deleted. | |
362 | Value is nil if OBJECT is not a live display terminal. | |
363 | If object is a live display terminal, the return value indicates what | |
364 | sort of output terminal it uses. See the documentation of `framep' for | |
d30a25b3 | 365 | possible return values. */) |
5842a27b | 366 | (Lisp_Object object) |
ed8dad6b | 367 | { |
6ed8eeff | 368 | struct terminal *t; |
56f2de10 | 369 | |
6ed8eeff | 370 | t = get_terminal (object, 0); |
ed8dad6b | 371 | |
6ed8eeff | 372 | if (!t) |
ed8dad6b KL |
373 | return Qnil; |
374 | ||
6ed8eeff | 375 | switch (t->type) |
ed8dad6b KL |
376 | { |
377 | case output_initial: /* The initial frame is like a termcap frame. */ | |
378 | case output_termcap: | |
379 | return Qt; | |
380 | case output_x_window: | |
381 | return Qx; | |
382 | case output_w32: | |
383 | return Qw32; | |
384 | case output_msdos_raw: | |
385 | return Qpc; | |
386 | case output_mac: | |
387 | return Qmac; | |
edfda783 AR |
388 | case output_ns: |
389 | return Qns; | |
ed8dad6b KL |
390 | default: |
391 | abort (); | |
392 | } | |
393 | } | |
394 | ||
6ed8eeff | 395 | DEFUN ("terminal-list", Fterminal_list, Sterminal_list, 0, 0, 0, |
d30a25b3 | 396 | doc: /* Return a list of all terminal devices. */) |
5842a27b | 397 | (void) |
ed8dad6b | 398 | { |
d30a25b3 | 399 | Lisp_Object terminal, terminals = Qnil; |
6ed8eeff | 400 | struct terminal *t; |
ed8dad6b | 401 | |
6ed8eeff | 402 | for (t = terminal_list; t; t = t->next_terminal) |
d30a25b3 SM |
403 | { |
404 | XSETTERMINAL (terminal, t); | |
405 | terminals = Fcons (terminal, terminals); | |
406 | } | |
ed8dad6b | 407 | |
6ed8eeff | 408 | return terminals; |
ed8dad6b KL |
409 | } |
410 | ||
6ed8eeff KL |
411 | DEFUN ("terminal-name", Fterminal_name, Sterminal_name, 0, 1, 0, |
412 | doc: /* Return the name of the terminal device TERMINAL. | |
ed8dad6b KL |
413 | It is not guaranteed that the returned value is unique among opened devices. |
414 | ||
e173bbce | 415 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 416 | selected frame's terminal). */) |
5842a27b | 417 | (Lisp_Object terminal) |
ed8dad6b | 418 | { |
c5911e55 SM |
419 | struct terminal *t |
420 | = TERMINALP (terminal) ? XTERMINAL (terminal) : get_terminal (terminal, 1); | |
ed8dad6b | 421 | |
c5911e55 | 422 | return t->name ? build_string (t->name) : Qnil; |
ed8dad6b KL |
423 | } |
424 | ||
425 | ||
426 | \f | |
6ed8eeff | 427 | /* Set the value of terminal parameter PARAMETER in terminal D to VALUE. |
ed8dad6b KL |
428 | Return the previous value. */ |
429 | ||
430 | Lisp_Object | |
971de7fb | 431 | store_terminal_param (struct terminal *t, Lisp_Object parameter, Lisp_Object value) |
ed8dad6b | 432 | { |
6ed8eeff | 433 | Lisp_Object old_alist_elt = Fassq (parameter, t->param_alist); |
ed8dad6b KL |
434 | if (EQ (old_alist_elt, Qnil)) |
435 | { | |
6ed8eeff | 436 | t->param_alist = Fcons (Fcons (parameter, value), t->param_alist); |
ed8dad6b KL |
437 | return Qnil; |
438 | } | |
439 | else | |
440 | { | |
441 | Lisp_Object result = Fcdr (old_alist_elt); | |
442 | Fsetcdr (old_alist_elt, value); | |
443 | return result; | |
444 | } | |
445 | } | |
446 | ||
447 | ||
448 | DEFUN ("terminal-parameters", Fterminal_parameters, Sterminal_parameters, 0, 1, 0, | |
449 | doc: /* Return the parameter-alist of terminal TERMINAL. | |
450 | The value is a list of elements of the form (PARM . VALUE), where PARM | |
451 | is a symbol. | |
452 | ||
e173bbce CY |
453 | TERMINAL can be a terminal object, a frame, or nil (meaning the |
454 | selected frame's terminal). */) | |
5842a27b | 455 | (Lisp_Object terminal) |
ed8dad6b | 456 | { |
c5911e55 SM |
457 | struct terminal *t |
458 | = TERMINALP (terminal) ? XTERMINAL (terminal) : get_terminal (terminal, 1); | |
6ed8eeff | 459 | return Fcopy_alist (t->param_alist); |
ed8dad6b KL |
460 | } |
461 | ||
462 | DEFUN ("terminal-parameter", Fterminal_parameter, Sterminal_parameter, 2, 2, 0, | |
463 | doc: /* Return TERMINAL's value for parameter PARAMETER. | |
e173bbce CY |
464 | TERMINAL can be a terminal object, a frame, or nil (meaning the |
465 | selected frame's terminal). */) | |
5842a27b | 466 | (Lisp_Object terminal, Lisp_Object parameter) |
ed8dad6b KL |
467 | { |
468 | Lisp_Object value; | |
c5911e55 SM |
469 | struct terminal *t |
470 | = TERMINALP (terminal) ? XTERMINAL (terminal) : get_terminal (terminal, 1); | |
ed8dad6b | 471 | CHECK_SYMBOL (parameter); |
6ed8eeff | 472 | value = Fcdr (Fassq (parameter, t->param_alist)); |
ed8dad6b KL |
473 | return value; |
474 | } | |
475 | ||
ed8dad6b KL |
476 | DEFUN ("set-terminal-parameter", Fset_terminal_parameter, |
477 | Sset_terminal_parameter, 3, 3, 0, | |
478 | doc: /* Set TERMINAL's value for parameter PARAMETER to VALUE. | |
479 | Return the previous value of PARAMETER. | |
480 | ||
e173bbce CY |
481 | TERMINAL can be a terminal object, a frame or nil (meaning the |
482 | selected frame's terminal). */) | |
5842a27b | 483 | (Lisp_Object terminal, Lisp_Object parameter, Lisp_Object value) |
ed8dad6b | 484 | { |
c5911e55 SM |
485 | struct terminal *t |
486 | = TERMINALP (terminal) ? XTERMINAL (terminal) : get_terminal (terminal, 1); | |
6ed8eeff | 487 | return store_terminal_param (t, parameter, value); |
ed8dad6b KL |
488 | } |
489 | ||
490 | \f | |
491 | ||
6ed8eeff KL |
492 | /* Create the bootstrap display terminal for the initial frame. |
493 | Returns a terminal of type output_initial. */ | |
ed8dad6b | 494 | |
6ed8eeff KL |
495 | struct terminal * |
496 | init_initial_terminal (void) | |
ed8dad6b | 497 | { |
6ed8eeff | 498 | if (initialized || terminal_list || tty_list) |
ed8dad6b KL |
499 | abort (); |
500 | ||
6ed8eeff KL |
501 | initial_terminal = create_terminal (); |
502 | initial_terminal->type = output_initial; | |
503 | initial_terminal->name = xstrdup ("initial_terminal"); | |
504 | initial_terminal->kboard = initial_kboard; | |
6ed8eeff | 505 | initial_terminal->delete_terminal_hook = &delete_initial_terminal; |
ed8dad6b KL |
506 | /* All other hooks are NULL. */ |
507 | ||
6ed8eeff | 508 | return initial_terminal; |
ed8dad6b KL |
509 | } |
510 | ||
6ed8eeff KL |
511 | /* Deletes the bootstrap terminal device. |
512 | Called through delete_terminal_hook. */ | |
ed8dad6b | 513 | |
6ed8eeff KL |
514 | static void |
515 | delete_initial_terminal (struct terminal *terminal) | |
ed8dad6b | 516 | { |
6ed8eeff | 517 | if (terminal != initial_terminal) |
ed8dad6b KL |
518 | abort (); |
519 | ||
6ed8eeff KL |
520 | delete_terminal (terminal); |
521 | initial_terminal = NULL; | |
ed8dad6b KL |
522 | } |
523 | ||
524 | void | |
971de7fb | 525 | syms_of_terminal (void) |
ed8dad6b KL |
526 | { |
527 | ||
29208e82 | 528 | DEFVAR_LISP ("ring-bell-function", Vring_bell_function, |
ed8dad6b KL |
529 | doc: /* Non-nil means call this function to ring the bell. |
530 | The function should accept no arguments. */); | |
531 | Vring_bell_function = Qnil; | |
532 | ||
29208e82 | 533 | DEFVAR_LISP ("delete-terminal-functions", Vdelete_terminal_functions, |
58555d81 SM |
534 | doc: /* Special hook run when a terminal is deleted. |
535 | Each function is called with argument, the terminal. | |
536 | This may be called just before actually deleting the terminal, | |
537 | or some time later. */); | |
538 | Vdelete_terminal_functions = Qnil; | |
d67b4f80 | 539 | Qdelete_terminal_functions = intern_c_string ("delete-terminal-functions"); |
58555d81 | 540 | staticpro (&Qdelete_terminal_functions); |
d67b4f80 | 541 | Qrun_hook_with_args = intern_c_string ("run-hook-with-args"); |
58555d81 SM |
542 | staticpro (&Qrun_hook_with_args); |
543 | ||
6ed8eeff KL |
544 | defsubr (&Sdelete_terminal); |
545 | defsubr (&Sframe_terminal); | |
546 | defsubr (&Sterminal_live_p); | |
547 | defsubr (&Sterminal_list); | |
548 | defsubr (&Sterminal_name); | |
ed8dad6b KL |
549 | defsubr (&Sterminal_parameters); |
550 | defsubr (&Sterminal_parameter); | |
ed8dad6b KL |
551 | defsubr (&Sset_terminal_parameter); |
552 | ||
d67b4f80 | 553 | Fprovide (intern_c_string ("multi-tty"), Qnil); |
ed8dad6b KL |
554 | } |
555 |