1 /* User Interface Events.
2 Copyright 1999, 2001 Free Software Foundation, Inc.
4 Contributed by Cygnus Solutions.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22 /* Work in progress */
24 /* This file was created with the aid of ``gdb-events.sh''.
26 The bourn shell script ``gdb-events.sh'' creates the files
27 ``new-gdb-events.c'' and ``new-gdb-events.h and then compares
28 them against the existing ``gdb-events.[hc]''. Any differences
31 If editing this file, please also run gdb-events.sh and merge any
32 changes into that script. Conversely, when making sweeping changes
33 to this file, modifying gdb-events.sh and using its output may
38 #include "gdb-events.h"
42 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
45 static struct gdb_events null_event_hooks
;
46 static struct gdb_events queue_event_hooks
;
47 static struct gdb_events
*current_event_hooks
= &null_event_hooks
;
55 breakpoint_create_event (int b
)
58 fprintf_unfiltered (gdb_stdlog
, "breakpoint_create_event\n");
59 if (!current_event_hooks
->breakpoint_create
)
61 current_event_hooks
->breakpoint_create (b
);
65 breakpoint_delete_event (int b
)
68 fprintf_unfiltered (gdb_stdlog
, "breakpoint_delete_event\n");
69 if (!current_event_hooks
->breakpoint_delete
)
71 current_event_hooks
->breakpoint_delete (b
);
75 breakpoint_modify_event (int b
)
78 fprintf_unfiltered (gdb_stdlog
, "breakpoint_modify_event\n");
79 if (!current_event_hooks
->breakpoint_modify
)
81 current_event_hooks
->breakpoint_modify (b
);
85 tracepoint_create_event (int number
)
88 fprintf_unfiltered (gdb_stdlog
, "tracepoint_create_event\n");
89 if (!current_event_hooks
->tracepoint_create
)
91 current_event_hooks
->tracepoint_create (number
);
95 tracepoint_delete_event (int number
)
98 fprintf_unfiltered (gdb_stdlog
, "tracepoint_delete_event\n");
99 if (!current_event_hooks
->tracepoint_delete
)
101 current_event_hooks
->tracepoint_delete (number
);
105 tracepoint_modify_event (int number
)
107 if (gdb_events_debug
)
108 fprintf_unfiltered (gdb_stdlog
, "tracepoint_modify_event\n");
109 if (!current_event_hooks
->tracepoint_modify
)
111 current_event_hooks
->tracepoint_modify (number
);
118 set_gdb_event_hooks (struct gdb_events
*vector
)
120 struct gdb_events
*old_events
= current_event_hooks
;
122 current_event_hooks
= &queue_event_hooks
;
124 current_event_hooks
= vector
;
140 struct breakpoint_create
145 struct breakpoint_delete
150 struct breakpoint_modify
155 struct tracepoint_create
160 struct tracepoint_delete
165 struct tracepoint_modify
176 struct breakpoint_create breakpoint_create
;
177 struct breakpoint_delete breakpoint_delete
;
178 struct breakpoint_modify breakpoint_modify
;
179 struct tracepoint_create tracepoint_create
;
180 struct tracepoint_delete tracepoint_delete
;
181 struct tracepoint_modify tracepoint_modify
;
185 struct event
*pending_events
;
186 struct event
*delivering_events
;
189 append (struct event
*new_event
)
191 struct event
**event
= &pending_events
;
192 while ((*event
) != NULL
)
193 event
= &((*event
)->next
);
194 (*event
) = new_event
;
195 (*event
)->next
= NULL
;
199 queue_breakpoint_create (int b
)
201 struct event
*event
= XMALLOC (struct event
);
202 event
->type
= breakpoint_create
;
203 event
->data
.breakpoint_create
.b
= b
;
208 queue_breakpoint_delete (int b
)
210 struct event
*event
= XMALLOC (struct event
);
211 event
->type
= breakpoint_delete
;
212 event
->data
.breakpoint_delete
.b
= b
;
217 queue_breakpoint_modify (int b
)
219 struct event
*event
= XMALLOC (struct event
);
220 event
->type
= breakpoint_modify
;
221 event
->data
.breakpoint_modify
.b
= b
;
226 queue_tracepoint_create (int number
)
228 struct event
*event
= XMALLOC (struct event
);
229 event
->type
= tracepoint_create
;
230 event
->data
.tracepoint_create
.number
= number
;
235 queue_tracepoint_delete (int number
)
237 struct event
*event
= XMALLOC (struct event
);
238 event
->type
= tracepoint_delete
;
239 event
->data
.tracepoint_delete
.number
= number
;
244 queue_tracepoint_modify (int number
)
246 struct event
*event
= XMALLOC (struct event
);
247 event
->type
= tracepoint_modify
;
248 event
->data
.tracepoint_modify
.number
= number
;
253 gdb_events_deliver (struct gdb_events
*vector
)
255 /* Just zap any events left around from last time. */
256 while (delivering_events
!= NULL
)
258 struct event
*event
= delivering_events
;
259 delivering_events
= event
->next
;
262 /* Process any pending events. Because one of the deliveries could
263 bail out we move everything off of the pending queue onto an
264 in-progress queue where it can, later, be cleaned up if
266 delivering_events
= pending_events
;
267 pending_events
= NULL
;
268 while (delivering_events
!= NULL
)
270 struct event
*event
= delivering_events
;
273 case breakpoint_create
:
274 vector
->breakpoint_create
275 (event
->data
.breakpoint_create
.b
);
277 case breakpoint_delete
:
278 vector
->breakpoint_delete
279 (event
->data
.breakpoint_delete
.b
);
281 case breakpoint_modify
:
282 vector
->breakpoint_modify
283 (event
->data
.breakpoint_modify
.b
);
285 case tracepoint_create
:
286 vector
->tracepoint_create
287 (event
->data
.tracepoint_create
.number
);
289 case tracepoint_delete
:
290 vector
->tracepoint_delete
291 (event
->data
.tracepoint_delete
.number
);
293 case tracepoint_modify
:
294 vector
->tracepoint_modify
295 (event
->data
.tracepoint_modify
.number
);
298 delivering_events
= event
->next
;
303 void _initialize_gdb_events (void);
305 _initialize_gdb_events (void)
307 struct cmd_list_element
*c
;
309 queue_event_hooks
.breakpoint_create
= queue_breakpoint_create
;
310 queue_event_hooks
.breakpoint_delete
= queue_breakpoint_delete
;
311 queue_event_hooks
.breakpoint_modify
= queue_breakpoint_modify
;
312 queue_event_hooks
.tracepoint_create
= queue_tracepoint_create
;
313 queue_event_hooks
.tracepoint_delete
= queue_tracepoint_delete
;
314 queue_event_hooks
.tracepoint_modify
= queue_tracepoint_modify
;
317 c
= add_set_cmd ("eventdebug", class_maintenance
, var_zinteger
,
318 (char *) (&gdb_events_debug
), "Set event debugging.\n\
319 When non-zero, event/notify debugging is enabled.", &setlist
);
320 deprecate_cmd (c
, "set debug event");
321 deprecate_cmd (add_show_from_set (c
, &showlist
), "show debug event");
323 add_show_from_set (add_set_cmd ("event",
326 (char *) (&gdb_events_debug
),
327 "Set event debugging.\n\
328 When non-zero, event/notify debugging is enabled.", &setdebuglist
),