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 ();
126 set_gdb_event_hooks (struct gdb_events
*vector
)
128 struct gdb_events
*old_events
= current_event_hooks
;
130 current_event_hooks
= &queue_event_hooks
;
132 current_event_hooks
= vector
;
145 architecture_changed
,
149 struct breakpoint_create
154 struct breakpoint_delete
159 struct breakpoint_modify
164 struct tracepoint_create
169 struct tracepoint_delete
174 struct tracepoint_modify
185 struct breakpoint_create breakpoint_create
;
186 struct breakpoint_delete breakpoint_delete
;
187 struct breakpoint_modify breakpoint_modify
;
188 struct tracepoint_create tracepoint_create
;
189 struct tracepoint_delete tracepoint_delete
;
190 struct tracepoint_modify tracepoint_modify
;
194 struct event
*pending_events
;
195 struct event
*delivering_events
;
198 append (struct event
*new_event
)
200 struct event
**event
= &pending_events
;
201 while ((*event
) != NULL
)
202 event
= &((*event
)->next
);
203 (*event
) = new_event
;
204 (*event
)->next
= NULL
;
208 queue_breakpoint_create (int b
)
210 struct event
*event
= XMALLOC (struct event
);
211 event
->type
= breakpoint_create
;
212 event
->data
.breakpoint_create
.b
= b
;
217 queue_breakpoint_delete (int b
)
219 struct event
*event
= XMALLOC (struct event
);
220 event
->type
= breakpoint_delete
;
221 event
->data
.breakpoint_delete
.b
= b
;
226 queue_breakpoint_modify (int b
)
228 struct event
*event
= XMALLOC (struct event
);
229 event
->type
= breakpoint_modify
;
230 event
->data
.breakpoint_modify
.b
= b
;
235 queue_tracepoint_create (int number
)
237 struct event
*event
= XMALLOC (struct event
);
238 event
->type
= tracepoint_create
;
239 event
->data
.tracepoint_create
.number
= number
;
244 queue_tracepoint_delete (int number
)
246 struct event
*event
= XMALLOC (struct event
);
247 event
->type
= tracepoint_delete
;
248 event
->data
.tracepoint_delete
.number
= number
;
253 queue_tracepoint_modify (int number
)
255 struct event
*event
= XMALLOC (struct event
);
256 event
->type
= tracepoint_modify
;
257 event
->data
.tracepoint_modify
.number
= number
;
262 queue_architecture_changed (void)
264 struct event
*event
= XMALLOC (struct event
);
265 event
->type
= architecture_changed
;
270 gdb_events_deliver (struct gdb_events
*vector
)
272 /* Just zap any events left around from last time. */
273 while (delivering_events
!= NULL
)
275 struct event
*event
= delivering_events
;
276 delivering_events
= event
->next
;
279 /* Process any pending events. Because one of the deliveries could
280 bail out we move everything off of the pending queue onto an
281 in-progress queue where it can, later, be cleaned up if
283 delivering_events
= pending_events
;
284 pending_events
= NULL
;
285 while (delivering_events
!= NULL
)
287 struct event
*event
= delivering_events
;
290 case breakpoint_create
:
291 vector
->breakpoint_create
292 (event
->data
.breakpoint_create
.b
);
294 case breakpoint_delete
:
295 vector
->breakpoint_delete
296 (event
->data
.breakpoint_delete
.b
);
298 case breakpoint_modify
:
299 vector
->breakpoint_modify
300 (event
->data
.breakpoint_modify
.b
);
302 case tracepoint_create
:
303 vector
->tracepoint_create
304 (event
->data
.tracepoint_create
.number
);
306 case tracepoint_delete
:
307 vector
->tracepoint_delete
308 (event
->data
.tracepoint_delete
.number
);
310 case tracepoint_modify
:
311 vector
->tracepoint_modify
312 (event
->data
.tracepoint_modify
.number
);
314 case architecture_changed
:
315 vector
->architecture_changed ();
318 delivering_events
= event
->next
;
323 void _initialize_gdb_events (void);
325 _initialize_gdb_events (void)
327 struct cmd_list_element
*c
;
329 queue_event_hooks
.breakpoint_create
= queue_breakpoint_create
;
330 queue_event_hooks
.breakpoint_delete
= queue_breakpoint_delete
;
331 queue_event_hooks
.breakpoint_modify
= queue_breakpoint_modify
;
332 queue_event_hooks
.tracepoint_create
= queue_tracepoint_create
;
333 queue_event_hooks
.tracepoint_delete
= queue_tracepoint_delete
;
334 queue_event_hooks
.tracepoint_modify
= queue_tracepoint_modify
;
335 queue_event_hooks
.architecture_changed
= queue_architecture_changed
;
338 c
= add_set_cmd ("eventdebug", class_maintenance
, var_zinteger
,
339 (char *) (&gdb_events_debug
), "Set event debugging.\n\
340 When non-zero, event/notify debugging is enabled.", &setlist
);
341 deprecate_cmd (c
, "set debug event");
342 deprecate_cmd (add_show_from_set (c
, &showlist
), "show debug event");
344 add_show_from_set (add_set_cmd ("event",
347 (char *) (&gdb_events_debug
),
348 "Set event debugging.\n\
349 When non-zero, event/notify debugging is enabled.", &setdebuglist
),