Commit | Line | Data |
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104c1213 | 1 | /* User Interface Events. |
349c5d5f | 2 | |
711cc5cd | 3 | Copyright 1999, 2001, 2002, 2004 Free Software Foundation, Inc. |
104c1213 JM |
4 | |
5 | Contributed by Cygnus Solutions. | |
6 | ||
afbfc876 | 7 | This file is part of GDB. |
104c1213 | 8 | |
afbfc876 AC |
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. | |
104c1213 | 13 | |
afbfc876 AC |
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. | |
104c1213 | 18 | |
afbfc876 AC |
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. */ | |
104c1213 JM |
22 | |
23 | /* Work in progress */ | |
24 | ||
25 | /* This file was created with the aid of ``gdb-events.sh''. | |
26 | ||
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 | |
30 | found being reported. | |
31 | ||
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 | |
35 | prove easier. */ | |
36 | ||
37 | ||
38 | #include "defs.h" | |
39 | #include "gdb-events.h" | |
40 | #include "gdbcmd.h" | |
41 | ||
104c1213 JM |
42 | static struct gdb_events null_event_hooks; |
43 | static struct gdb_events queue_event_hooks; | |
44 | static struct gdb_events *current_event_hooks = &null_event_hooks; | |
104c1213 JM |
45 | |
46 | int gdb_events_debug; | |
47 | ||
104c1213 JM |
48 | void |
49 | breakpoint_create_event (int b) | |
50 | { | |
51 | if (gdb_events_debug) | |
52 | fprintf_unfiltered (gdb_stdlog, "breakpoint_create_event\n"); | |
53 | if (!current_event_hooks->breakpoint_create) | |
54 | return; | |
55 | current_event_hooks->breakpoint_create (b); | |
56 | } | |
57 | ||
58 | void | |
59 | breakpoint_delete_event (int b) | |
60 | { | |
61 | if (gdb_events_debug) | |
62 | fprintf_unfiltered (gdb_stdlog, "breakpoint_delete_event\n"); | |
63 | if (!current_event_hooks->breakpoint_delete) | |
64 | return; | |
65 | current_event_hooks->breakpoint_delete (b); | |
66 | } | |
67 | ||
68 | void | |
69 | breakpoint_modify_event (int b) | |
70 | { | |
71 | if (gdb_events_debug) | |
72 | fprintf_unfiltered (gdb_stdlog, "breakpoint_modify_event\n"); | |
73 | if (!current_event_hooks->breakpoint_modify) | |
74 | return; | |
75 | current_event_hooks->breakpoint_modify (b); | |
76 | } | |
77 | ||
ba9fe036 KS |
78 | void |
79 | tracepoint_create_event (int number) | |
80 | { | |
81 | if (gdb_events_debug) | |
82 | fprintf_unfiltered (gdb_stdlog, "tracepoint_create_event\n"); | |
83 | if (!current_event_hooks->tracepoint_create) | |
84 | return; | |
85 | current_event_hooks->tracepoint_create (number); | |
86 | } | |
87 | ||
88 | void | |
89 | tracepoint_delete_event (int number) | |
90 | { | |
91 | if (gdb_events_debug) | |
92 | fprintf_unfiltered (gdb_stdlog, "tracepoint_delete_event\n"); | |
93 | if (!current_event_hooks->tracepoint_delete) | |
94 | return; | |
95 | current_event_hooks->tracepoint_delete (number); | |
96 | } | |
97 | ||
98 | void | |
99 | tracepoint_modify_event (int number) | |
100 | { | |
101 | if (gdb_events_debug) | |
102 | fprintf_unfiltered (gdb_stdlog, "tracepoint_modify_event\n"); | |
103 | if (!current_event_hooks->tracepoint_modify) | |
104 | return; | |
105 | current_event_hooks->tracepoint_modify (number); | |
106 | } | |
107 | ||
67c2c32c KS |
108 | void |
109 | architecture_changed_event (void) | |
110 | { | |
111 | if (gdb_events_debug) | |
112 | fprintf_unfiltered (gdb_stdlog, "architecture_changed_event\n"); | |
113 | if (!current_event_hooks->architecture_changed) | |
114 | return; | |
115 | current_event_hooks->architecture_changed (); | |
116 | } | |
117 | ||
e23792cc KS |
118 | void |
119 | target_changed_event (void) | |
120 | { | |
121 | if (gdb_events_debug) | |
122 | fprintf_unfiltered (gdb_stdlog, "target_changed_event\n"); | |
123 | if (!current_event_hooks->target_changed) | |
124 | return; | |
125 | current_event_hooks->target_changed (); | |
126 | } | |
127 | ||
55970da6 KS |
128 | void |
129 | selected_frame_level_changed_event (int level) | |
130 | { | |
131 | if (gdb_events_debug) | |
132 | fprintf_unfiltered (gdb_stdlog, "selected_frame_level_changed_event\n"); | |
133 | if (!current_event_hooks->selected_frame_level_changed) | |
134 | return; | |
135 | current_event_hooks->selected_frame_level_changed (level); | |
136 | } | |
137 | ||
28ee05e9 KS |
138 | void |
139 | selected_thread_changed_event (int thread_num) | |
140 | { | |
141 | if (gdb_events_debug) | |
142 | fprintf_unfiltered (gdb_stdlog, "selected_thread_changed_event\n"); | |
143 | if (!current_event_hooks->selected_thread_changed) | |
144 | return; | |
145 | current_event_hooks->selected_thread_changed (thread_num); | |
146 | } | |
147 | ||
ed9a39eb | 148 | struct gdb_events * |
104c1213 JM |
149 | set_gdb_event_hooks (struct gdb_events *vector) |
150 | { | |
ed9a39eb | 151 | struct gdb_events *old_events = current_event_hooks; |
104c1213 JM |
152 | if (vector == NULL) |
153 | current_event_hooks = &queue_event_hooks; | |
154 | else | |
155 | current_event_hooks = vector; | |
ed9a39eb | 156 | return old_events; |
104c1213 | 157 | } |
104c1213 | 158 | |
63d022e0 KS |
159 | void |
160 | clear_gdb_event_hooks (void) | |
161 | { | |
162 | set_gdb_event_hooks (&null_event_hooks); | |
163 | } | |
63d022e0 | 164 | |
104c1213 | 165 | enum gdb_event |
afbfc876 AC |
166 | { |
167 | breakpoint_create, | |
168 | breakpoint_delete, | |
169 | breakpoint_modify, | |
ba9fe036 KS |
170 | tracepoint_create, |
171 | tracepoint_delete, | |
172 | tracepoint_modify, | |
67c2c32c | 173 | architecture_changed, |
e23792cc | 174 | target_changed, |
55970da6 | 175 | selected_frame_level_changed, |
28ee05e9 | 176 | selected_thread_changed, |
afbfc876 AC |
177 | nr_gdb_events |
178 | }; | |
104c1213 JM |
179 | |
180 | struct breakpoint_create | |
181 | { | |
182 | int b; | |
183 | }; | |
184 | ||
185 | struct breakpoint_delete | |
186 | { | |
187 | int b; | |
188 | }; | |
189 | ||
190 | struct breakpoint_modify | |
191 | { | |
192 | int b; | |
193 | }; | |
194 | ||
ba9fe036 KS |
195 | struct tracepoint_create |
196 | { | |
197 | int number; | |
198 | }; | |
199 | ||
200 | struct tracepoint_delete | |
201 | { | |
202 | int number; | |
203 | }; | |
204 | ||
205 | struct tracepoint_modify | |
206 | { | |
207 | int number; | |
208 | }; | |
209 | ||
55970da6 KS |
210 | struct selected_frame_level_changed |
211 | { | |
212 | int level; | |
213 | }; | |
214 | ||
28ee05e9 KS |
215 | struct selected_thread_changed |
216 | { | |
217 | int thread_num; | |
218 | }; | |
219 | ||
104c1213 JM |
220 | struct event |
221 | { | |
222 | enum gdb_event type; | |
223 | struct event *next; | |
224 | union | |
225 | { | |
afbfc876 AC |
226 | struct breakpoint_create breakpoint_create; |
227 | struct breakpoint_delete breakpoint_delete; | |
228 | struct breakpoint_modify breakpoint_modify; | |
ba9fe036 KS |
229 | struct tracepoint_create tracepoint_create; |
230 | struct tracepoint_delete tracepoint_delete; | |
231 | struct tracepoint_modify tracepoint_modify; | |
55970da6 | 232 | struct selected_frame_level_changed selected_frame_level_changed; |
28ee05e9 | 233 | struct selected_thread_changed selected_thread_changed; |
104c1213 JM |
234 | } |
235 | data; | |
236 | }; | |
237 | struct event *pending_events; | |
238 | struct event *delivering_events; | |
239 | ||
240 | static void | |
241 | append (struct event *new_event) | |
242 | { | |
243 | struct event **event = &pending_events; | |
244 | while ((*event) != NULL) | |
245 | event = &((*event)->next); | |
246 | (*event) = new_event; | |
247 | (*event)->next = NULL; | |
248 | } | |
249 | ||
250 | static void | |
251 | queue_breakpoint_create (int b) | |
252 | { | |
253 | struct event *event = XMALLOC (struct event); | |
254 | event->type = breakpoint_create; | |
255 | event->data.breakpoint_create.b = b; | |
256 | append (event); | |
257 | } | |
258 | ||
259 | static void | |
260 | queue_breakpoint_delete (int b) | |
261 | { | |
262 | struct event *event = XMALLOC (struct event); | |
263 | event->type = breakpoint_delete; | |
264 | event->data.breakpoint_delete.b = b; | |
265 | append (event); | |
266 | } | |
267 | ||
268 | static void | |
269 | queue_breakpoint_modify (int b) | |
270 | { | |
271 | struct event *event = XMALLOC (struct event); | |
272 | event->type = breakpoint_modify; | |
273 | event->data.breakpoint_modify.b = b; | |
274 | append (event); | |
275 | } | |
276 | ||
ba9fe036 KS |
277 | static void |
278 | queue_tracepoint_create (int number) | |
279 | { | |
280 | struct event *event = XMALLOC (struct event); | |
281 | event->type = tracepoint_create; | |
282 | event->data.tracepoint_create.number = number; | |
283 | append (event); | |
284 | } | |
285 | ||
286 | static void | |
287 | queue_tracepoint_delete (int number) | |
288 | { | |
289 | struct event *event = XMALLOC (struct event); | |
290 | event->type = tracepoint_delete; | |
291 | event->data.tracepoint_delete.number = number; | |
292 | append (event); | |
293 | } | |
294 | ||
295 | static void | |
296 | queue_tracepoint_modify (int number) | |
297 | { | |
298 | struct event *event = XMALLOC (struct event); | |
299 | event->type = tracepoint_modify; | |
300 | event->data.tracepoint_modify.number = number; | |
301 | append (event); | |
302 | } | |
303 | ||
67c2c32c KS |
304 | static void |
305 | queue_architecture_changed (void) | |
306 | { | |
307 | struct event *event = XMALLOC (struct event); | |
308 | event->type = architecture_changed; | |
309 | append (event); | |
310 | } | |
311 | ||
e23792cc KS |
312 | static void |
313 | queue_target_changed (void) | |
314 | { | |
315 | struct event *event = XMALLOC (struct event); | |
316 | event->type = target_changed; | |
317 | append (event); | |
318 | } | |
319 | ||
55970da6 KS |
320 | static void |
321 | queue_selected_frame_level_changed (int level) | |
322 | { | |
323 | struct event *event = XMALLOC (struct event); | |
324 | event->type = selected_frame_level_changed; | |
325 | event->data.selected_frame_level_changed.level = level; | |
326 | append (event); | |
327 | } | |
328 | ||
28ee05e9 KS |
329 | static void |
330 | queue_selected_thread_changed (int thread_num) | |
331 | { | |
332 | struct event *event = XMALLOC (struct event); | |
333 | event->type = selected_thread_changed; | |
334 | event->data.selected_thread_changed.thread_num = thread_num; | |
335 | append (event); | |
336 | } | |
337 | ||
104c1213 JM |
338 | void |
339 | gdb_events_deliver (struct gdb_events *vector) | |
340 | { | |
341 | /* Just zap any events left around from last time. */ | |
342 | while (delivering_events != NULL) | |
343 | { | |
344 | struct event *event = delivering_events; | |
345 | delivering_events = event->next; | |
b8c9b27d | 346 | xfree (event); |
104c1213 JM |
347 | } |
348 | /* Process any pending events. Because one of the deliveries could | |
349 | bail out we move everything off of the pending queue onto an | |
350 | in-progress queue where it can, later, be cleaned up if | |
351 | necessary. */ | |
352 | delivering_events = pending_events; | |
353 | pending_events = NULL; | |
354 | while (delivering_events != NULL) | |
355 | { | |
356 | struct event *event = delivering_events; | |
357 | switch (event->type) | |
afbfc876 AC |
358 | { |
359 | case breakpoint_create: | |
360 | vector->breakpoint_create | |
361 | (event->data.breakpoint_create.b); | |
362 | break; | |
363 | case breakpoint_delete: | |
364 | vector->breakpoint_delete | |
365 | (event->data.breakpoint_delete.b); | |
366 | break; | |
367 | case breakpoint_modify: | |
368 | vector->breakpoint_modify | |
369 | (event->data.breakpoint_modify.b); | |
370 | break; | |
ba9fe036 KS |
371 | case tracepoint_create: |
372 | vector->tracepoint_create | |
373 | (event->data.tracepoint_create.number); | |
374 | break; | |
375 | case tracepoint_delete: | |
376 | vector->tracepoint_delete | |
377 | (event->data.tracepoint_delete.number); | |
378 | break; | |
379 | case tracepoint_modify: | |
380 | vector->tracepoint_modify | |
381 | (event->data.tracepoint_modify.number); | |
382 | break; | |
67c2c32c KS |
383 | case architecture_changed: |
384 | vector->architecture_changed (); | |
385 | break; | |
e23792cc KS |
386 | case target_changed: |
387 | vector->target_changed (); | |
388 | break; | |
55970da6 KS |
389 | case selected_frame_level_changed: |
390 | vector->selected_frame_level_changed | |
391 | (event->data.selected_frame_level_changed.level); | |
392 | break; | |
28ee05e9 KS |
393 | case selected_thread_changed: |
394 | vector->selected_thread_changed | |
395 | (event->data.selected_thread_changed.thread_num); | |
396 | break; | |
afbfc876 | 397 | } |
104c1213 | 398 | delivering_events = event->next; |
b8c9b27d | 399 | xfree (event); |
104c1213 JM |
400 | } |
401 | } | |
402 | ||
403 | void _initialize_gdb_events (void); | |
404 | void | |
405 | _initialize_gdb_events (void) | |
406 | { | |
5d161b24 | 407 | struct cmd_list_element *c; |
104c1213 JM |
408 | queue_event_hooks.breakpoint_create = queue_breakpoint_create; |
409 | queue_event_hooks.breakpoint_delete = queue_breakpoint_delete; | |
410 | queue_event_hooks.breakpoint_modify = queue_breakpoint_modify; | |
ba9fe036 KS |
411 | queue_event_hooks.tracepoint_create = queue_tracepoint_create; |
412 | queue_event_hooks.tracepoint_delete = queue_tracepoint_delete; | |
413 | queue_event_hooks.tracepoint_modify = queue_tracepoint_modify; | |
67c2c32c | 414 | queue_event_hooks.architecture_changed = queue_architecture_changed; |
e23792cc | 415 | queue_event_hooks.target_changed = queue_target_changed; |
55970da6 | 416 | queue_event_hooks.selected_frame_level_changed = queue_selected_frame_level_changed; |
28ee05e9 | 417 | queue_event_hooks.selected_thread_changed = queue_selected_thread_changed; |
5d161b24 | 418 | |
afbfc876 AC |
419 | c = add_set_cmd ("eventdebug", class_maintenance, var_zinteger, |
420 | (char *) (&gdb_events_debug), "Set event debugging.\n\ | |
5d161b24 | 421 | When non-zero, event/notify debugging is enabled.", &setlist); |
afbfc876 AC |
422 | deprecate_cmd (c, "set debug event"); |
423 | deprecate_cmd (add_show_from_set (c, &showlist), "show debug event"); | |
5d161b24 DB |
424 | |
425 | add_show_from_set (add_set_cmd ("event", | |
afbfc876 AC |
426 | class_maintenance, |
427 | var_zinteger, | |
428 | (char *) (&gdb_events_debug), | |
429 | "Set event debugging.\n\ | |
5d161b24 | 430 | When non-zero, event/notify debugging is enabled.", &setdebuglist), |
afbfc876 | 431 | &showdebuglist); |
104c1213 | 432 | } |