1 /* User Interface Events.
3 Copyright 1999, 2001, 2002 Free Software Foundation, Inc.
5 Contributed by Cygnus Solutions.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 /* Work in progress */
25 /* This file was created with the aid of ``gdb-events.sh''.
27 The bourn shell script ``gdb-events.sh'' creates the files
28 ``new-gdb-events.c'' and ``new-gdb-events.h and then compares
29 them against the existing ``gdb-events.[hc]''. Any differences
32 If editing this file, please also run gdb-events.sh and merge any
33 changes into that script. Conversely, when making sweeping changes
34 to this file, modifying gdb-events.sh and using its output may
39 #include "gdb-events.h"
43 static struct gdb_events null_event_hooks;
44 static struct gdb_events queue_event_hooks;
45 static struct gdb_events *current_event_hooks = &null_event_hooks;
53 breakpoint_create_event (int b)
56 fprintf_unfiltered (gdb_stdlog, "breakpoint_create_event\n");
57 if (!current_event_hooks->breakpoint_create)
59 current_event_hooks->breakpoint_create (b);
63 breakpoint_delete_event (int b)
66 fprintf_unfiltered (gdb_stdlog, "breakpoint_delete_event\n");
67 if (!current_event_hooks->breakpoint_delete)
69 current_event_hooks->breakpoint_delete (b);
73 breakpoint_modify_event (int b)
76 fprintf_unfiltered (gdb_stdlog, "breakpoint_modify_event\n");
77 if (!current_event_hooks->breakpoint_modify)
79 current_event_hooks->breakpoint_modify (b);
83 tracepoint_create_event (int number)
86 fprintf_unfiltered (gdb_stdlog, "tracepoint_create_event\n");
87 if (!current_event_hooks->tracepoint_create)
89 current_event_hooks->tracepoint_create (number);
93 tracepoint_delete_event (int number)
96 fprintf_unfiltered (gdb_stdlog, "tracepoint_delete_event\n");
97 if (!current_event_hooks->tracepoint_delete)
99 current_event_hooks->tracepoint_delete (number);
103 tracepoint_modify_event (int number)
105 if (gdb_events_debug)
106 fprintf_unfiltered (gdb_stdlog, "tracepoint_modify_event\n");
107 if (!current_event_hooks->tracepoint_modify)
109 current_event_hooks->tracepoint_modify (number);
113 architecture_changed_event (void)
115 if (gdb_events_debug)
116 fprintf_unfiltered (gdb_stdlog, "architecture_changed_event\n");
117 if (!current_event_hooks->architecture_changed)
119 current_event_hooks->architecture_changed ();
123 target_changed_event (void)
125 if (gdb_events_debug)
126 fprintf_unfiltered (gdb_stdlog, "target_changed_event\n");
127 if (!current_event_hooks->target_changed)
129 current_event_hooks->target_changed ();
133 selected_frame_level_changed_event (int level)
135 if (gdb_events_debug)
136 fprintf_unfiltered (gdb_stdlog, "selected_frame_level_changed_event\n");
137 if (!current_event_hooks->selected_frame_level_changed)
139 current_event_hooks->selected_frame_level_changed (level);
146 set_gdb_event_hooks (struct gdb_events *vector)
148 struct gdb_events *old_events = current_event_hooks;
150 current_event_hooks = &queue_event_hooks;
152 current_event_hooks = vector;
159 clear_gdb_event_hooks (void)
161 set_gdb_event_hooks (&null_event_hooks);
173 architecture_changed,
175 selected_frame_level_changed,
179 struct breakpoint_create
184 struct breakpoint_delete
189 struct breakpoint_modify
194 struct tracepoint_create
199 struct tracepoint_delete
204 struct tracepoint_modify
209 struct selected_frame_level_changed
220 struct breakpoint_create breakpoint_create;
221 struct breakpoint_delete breakpoint_delete;
222 struct breakpoint_modify breakpoint_modify;
223 struct tracepoint_create tracepoint_create;
224 struct tracepoint_delete tracepoint_delete;
225 struct tracepoint_modify tracepoint_modify;
226 struct selected_frame_level_changed selected_frame_level_changed;
230 struct event *pending_events;
231 struct event *delivering_events;
234 append (struct event *new_event)
236 struct event **event = &pending_events;
237 while ((*event) != NULL)
238 event = &((*event)->next);
239 (*event) = new_event;
240 (*event)->next = NULL;
244 queue_breakpoint_create (int b)
246 struct event *event = XMALLOC (struct event);
247 event->type = breakpoint_create;
248 event->data.breakpoint_create.b = b;
253 queue_breakpoint_delete (int b)
255 struct event *event = XMALLOC (struct event);
256 event->type = breakpoint_delete;
257 event->data.breakpoint_delete.b = b;
262 queue_breakpoint_modify (int b)
264 struct event *event = XMALLOC (struct event);
265 event->type = breakpoint_modify;
266 event->data.breakpoint_modify.b = b;
271 queue_tracepoint_create (int number)
273 struct event *event = XMALLOC (struct event);
274 event->type = tracepoint_create;
275 event->data.tracepoint_create.number = number;
280 queue_tracepoint_delete (int number)
282 struct event *event = XMALLOC (struct event);
283 event->type = tracepoint_delete;
284 event->data.tracepoint_delete.number = number;
289 queue_tracepoint_modify (int number)
291 struct event *event = XMALLOC (struct event);
292 event->type = tracepoint_modify;
293 event->data.tracepoint_modify.number = number;
298 queue_architecture_changed (void)
300 struct event *event = XMALLOC (struct event);
301 event->type = architecture_changed;
306 queue_target_changed (void)
308 struct event *event = XMALLOC (struct event);
309 event->type = target_changed;
314 queue_selected_frame_level_changed (int level)
316 struct event *event = XMALLOC (struct event);
317 event->type = selected_frame_level_changed;
318 event->data.selected_frame_level_changed.level = level;
323 gdb_events_deliver (struct gdb_events *vector)
325 /* Just zap any events left around from last time. */
326 while (delivering_events != NULL)
328 struct event *event = delivering_events;
329 delivering_events = event->next;
332 /* Process any pending events. Because one of the deliveries could
333 bail out we move everything off of the pending queue onto an
334 in-progress queue where it can, later, be cleaned up if
336 delivering_events = pending_events;
337 pending_events = NULL;
338 while (delivering_events != NULL)
340 struct event *event = delivering_events;
343 case breakpoint_create:
344 vector->breakpoint_create
345 (event->data.breakpoint_create.b);
347 case breakpoint_delete:
348 vector->breakpoint_delete
349 (event->data.breakpoint_delete.b);
351 case breakpoint_modify:
352 vector->breakpoint_modify
353 (event->data.breakpoint_modify.b);
355 case tracepoint_create:
356 vector->tracepoint_create
357 (event->data.tracepoint_create.number);
359 case tracepoint_delete:
360 vector->tracepoint_delete
361 (event->data.tracepoint_delete.number);
363 case tracepoint_modify:
364 vector->tracepoint_modify
365 (event->data.tracepoint_modify.number);
367 case architecture_changed:
368 vector->architecture_changed ();
371 vector->target_changed ();
373 case selected_frame_level_changed:
374 vector->selected_frame_level_changed
375 (event->data.selected_frame_level_changed.level);
378 delivering_events = event->next;
383 void _initialize_gdb_events (void);
385 _initialize_gdb_events (void)
387 struct cmd_list_element *c;
389 queue_event_hooks.breakpoint_create = queue_breakpoint_create;
390 queue_event_hooks.breakpoint_delete = queue_breakpoint_delete;
391 queue_event_hooks.breakpoint_modify = queue_breakpoint_modify;
392 queue_event_hooks.tracepoint_create = queue_tracepoint_create;
393 queue_event_hooks.tracepoint_delete = queue_tracepoint_delete;
394 queue_event_hooks.tracepoint_modify = queue_tracepoint_modify;
395 queue_event_hooks.architecture_changed = queue_architecture_changed;
396 queue_event_hooks.target_changed = queue_target_changed;
397 queue_event_hooks.selected_frame_level_changed = queue_selected_frame_level_changed;
400 c = add_set_cmd ("eventdebug", class_maintenance, var_zinteger,
401 (char *) (&gdb_events_debug), "Set event debugging.\n\
402 When non-zero, event/notify debugging is enabled.", &setlist);
403 deprecate_cmd (c, "set debug event");
404 deprecate_cmd (add_show_from_set (c, &showlist), "show debug event");
406 add_show_from_set (add_set_cmd ("event",
409 (char *) (&gdb_events_debug),
410 "Set event debugging.\n\
411 When non-zero, event/notify debugging is enabled.", &setdebuglist),