1 /* User Interface Events.
3 Copyright (C) 1999, 2001, 2002, 2004, 2005 Free Software Foundation,
6 Contributed by Cygnus Solutions.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 Boston, MA 02110-1301, USA. */
25 /* Work in progress */
27 /* This file was created with the aid of ``gdb-events.sh''.
29 The bourn shell script ``gdb-events.sh'' creates the files
30 ``new-gdb-events.c'' and ``new-gdb-events.h and then compares
31 them against the existing ``gdb-events.[hc]''. Any differences
34 If editing this file, please also run gdb-events.sh and merge any
35 changes into that script. Conversely, when making sweeping changes
36 to this file, modifying gdb-events.sh and using its output may
41 #include "gdb-events.h"
44 static struct gdb_events null_event_hooks;
45 static struct gdb_events queue_event_hooks;
46 static struct gdb_events *current_event_hooks = &null_event_hooks;
50 show_gdb_events_debug (struct ui_file *file, int from_tty,
51 struct cmd_list_element *c, const char *value)
53 fprintf_filtered (file, _("Event debugging is %s.\n"), value);
58 breakpoint_create_event (int b)
61 fprintf_unfiltered (gdb_stdlog, "breakpoint_create_event\n");
62 if (!current_event_hooks->breakpoint_create)
64 current_event_hooks->breakpoint_create (b);
68 breakpoint_delete_event (int b)
71 fprintf_unfiltered (gdb_stdlog, "breakpoint_delete_event\n");
72 if (!current_event_hooks->breakpoint_delete)
74 current_event_hooks->breakpoint_delete (b);
78 breakpoint_modify_event (int b)
81 fprintf_unfiltered (gdb_stdlog, "breakpoint_modify_event\n");
82 if (!current_event_hooks->breakpoint_modify)
84 current_event_hooks->breakpoint_modify (b);
88 tracepoint_create_event (int number)
91 fprintf_unfiltered (gdb_stdlog, "tracepoint_create_event\n");
92 if (!current_event_hooks->tracepoint_create)
94 current_event_hooks->tracepoint_create (number);
98 tracepoint_delete_event (int number)
100 if (gdb_events_debug)
101 fprintf_unfiltered (gdb_stdlog, "tracepoint_delete_event\n");
102 if (!current_event_hooks->tracepoint_delete)
104 current_event_hooks->tracepoint_delete (number);
108 tracepoint_modify_event (int number)
110 if (gdb_events_debug)
111 fprintf_unfiltered (gdb_stdlog, "tracepoint_modify_event\n");
112 if (!current_event_hooks->tracepoint_modify)
114 current_event_hooks->tracepoint_modify (number);
118 architecture_changed_event (void)
120 if (gdb_events_debug)
121 fprintf_unfiltered (gdb_stdlog, "architecture_changed_event\n");
122 if (!current_event_hooks->architecture_changed)
124 current_event_hooks->architecture_changed ();
128 deprecated_set_gdb_event_hooks (struct gdb_events *vector)
130 struct gdb_events *old_events = current_event_hooks;
132 current_event_hooks = &queue_event_hooks;
134 current_event_hooks = vector;
139 clear_gdb_event_hooks (void)
141 deprecated_set_gdb_event_hooks (&null_event_hooks);
152 architecture_changed,
156 struct breakpoint_create
161 struct breakpoint_delete
166 struct breakpoint_modify
171 struct tracepoint_create
176 struct tracepoint_delete
181 struct tracepoint_modify
192 struct breakpoint_create breakpoint_create;
193 struct breakpoint_delete breakpoint_delete;
194 struct breakpoint_modify breakpoint_modify;
195 struct tracepoint_create tracepoint_create;
196 struct tracepoint_delete tracepoint_delete;
197 struct tracepoint_modify tracepoint_modify;
201 struct event *pending_events;
202 struct event *delivering_events;
205 append (struct event *new_event)
207 struct event **event = &pending_events;
208 while ((*event) != NULL)
209 event = &((*event)->next);
210 (*event) = new_event;
211 (*event)->next = NULL;
215 queue_breakpoint_create (int b)
217 struct event *event = XMALLOC (struct event);
218 event->type = breakpoint_create;
219 event->data.breakpoint_create.b = b;
224 queue_breakpoint_delete (int b)
226 struct event *event = XMALLOC (struct event);
227 event->type = breakpoint_delete;
228 event->data.breakpoint_delete.b = b;
233 queue_breakpoint_modify (int b)
235 struct event *event = XMALLOC (struct event);
236 event->type = breakpoint_modify;
237 event->data.breakpoint_modify.b = b;
242 queue_tracepoint_create (int number)
244 struct event *event = XMALLOC (struct event);
245 event->type = tracepoint_create;
246 event->data.tracepoint_create.number = number;
251 queue_tracepoint_delete (int number)
253 struct event *event = XMALLOC (struct event);
254 event->type = tracepoint_delete;
255 event->data.tracepoint_delete.number = number;
260 queue_tracepoint_modify (int number)
262 struct event *event = XMALLOC (struct event);
263 event->type = tracepoint_modify;
264 event->data.tracepoint_modify.number = number;
269 queue_architecture_changed (void)
271 struct event *event = XMALLOC (struct event);
272 event->type = architecture_changed;
277 gdb_events_deliver (struct gdb_events *vector)
279 /* Just zap any events left around from last time. */
280 while (delivering_events != NULL)
282 struct event *event = delivering_events;
283 delivering_events = event->next;
286 /* Process any pending events. Because one of the deliveries could
287 bail out we move everything off of the pending queue onto an
288 in-progress queue where it can, later, be cleaned up if
290 delivering_events = pending_events;
291 pending_events = NULL;
292 while (delivering_events != NULL)
294 struct event *event = delivering_events;
297 case breakpoint_create:
298 vector->breakpoint_create
299 (event->data.breakpoint_create.b);
301 case breakpoint_delete:
302 vector->breakpoint_delete
303 (event->data.breakpoint_delete.b);
305 case breakpoint_modify:
306 vector->breakpoint_modify
307 (event->data.breakpoint_modify.b);
309 case tracepoint_create:
310 vector->tracepoint_create
311 (event->data.tracepoint_create.number);
313 case tracepoint_delete:
314 vector->tracepoint_delete
315 (event->data.tracepoint_delete.number);
317 case tracepoint_modify:
318 vector->tracepoint_modify
319 (event->data.tracepoint_modify.number);
321 case architecture_changed:
322 vector->architecture_changed ();
325 delivering_events = event->next;
330 void _initialize_gdb_events (void);
332 _initialize_gdb_events (void)
334 struct cmd_list_element *c;
335 queue_event_hooks.breakpoint_create = queue_breakpoint_create;
336 queue_event_hooks.breakpoint_delete = queue_breakpoint_delete;
337 queue_event_hooks.breakpoint_modify = queue_breakpoint_modify;
338 queue_event_hooks.tracepoint_create = queue_tracepoint_create;
339 queue_event_hooks.tracepoint_delete = queue_tracepoint_delete;
340 queue_event_hooks.tracepoint_modify = queue_tracepoint_modify;
341 queue_event_hooks.architecture_changed = queue_architecture_changed;
343 add_setshow_zinteger_cmd ("event", class_maintenance,
344 &gdb_events_debug, _("\
345 Set event debugging."), _("\
346 Show event debugging."), _("\
347 When non-zero, event/notify debugging is enabled."),
349 show_gdb_events_debug,
350 &setdebuglist, &showdebuglist);