1 /* User Interface Events.
2 Copyright 1999 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);
88 set_gdb_event_hooks (struct gdb_events *vector)
91 current_event_hooks = &queue_event_hooks;
93 current_event_hooks = vector;
105 struct breakpoint_create
110 struct breakpoint_delete
115 struct breakpoint_modify
126 struct breakpoint_create breakpoint_create;
127 struct breakpoint_delete breakpoint_delete;
128 struct breakpoint_modify breakpoint_modify;
132 struct event *pending_events;
133 struct event *delivering_events;
136 append (struct event *new_event)
138 struct event **event = &pending_events;
139 while ((*event) != NULL)
140 event = &((*event)->next);
141 (*event) = new_event;
142 (*event)->next = NULL;
146 queue_breakpoint_create (int b)
148 struct event *event = XMALLOC (struct event);
149 event->type = breakpoint_create;
150 event->data.breakpoint_create.b = b;
155 queue_breakpoint_delete (int b)
157 struct event *event = XMALLOC (struct event);
158 event->type = breakpoint_delete;
159 event->data.breakpoint_delete.b = b;
164 queue_breakpoint_modify (int b)
166 struct event *event = XMALLOC (struct event);
167 event->type = breakpoint_modify;
168 event->data.breakpoint_modify.b = b;
173 gdb_events_deliver (struct gdb_events *vector)
175 /* Just zap any events left around from last time. */
176 while (delivering_events != NULL)
178 struct event *event = delivering_events;
179 delivering_events = event->next;
182 /* Process any pending events. Because one of the deliveries could
183 bail out we move everything off of the pending queue onto an
184 in-progress queue where it can, later, be cleaned up if
186 delivering_events = pending_events;
187 pending_events = NULL;
188 while (delivering_events != NULL)
190 struct event *event = delivering_events;
193 case breakpoint_create:
194 vector->breakpoint_create
195 (event->data.breakpoint_create.b);
197 case breakpoint_delete:
198 vector->breakpoint_delete
199 (event->data.breakpoint_delete.b);
201 case breakpoint_modify:
202 vector->breakpoint_modify
203 (event->data.breakpoint_modify.b);
206 delivering_events = event->next;
211 void _initialize_gdb_events (void);
213 _initialize_gdb_events (void)
216 queue_event_hooks.breakpoint_create = queue_breakpoint_create;
217 queue_event_hooks.breakpoint_delete = queue_breakpoint_delete;
218 queue_event_hooks.breakpoint_modify = queue_breakpoint_modify;
220 add_show_from_set (add_set_cmd ("eventdebug",
223 (char *)&gdb_events_debug,
224 "Set event debugging.\n\
225 When non-zero, event/notify debugging is enabled.", &setlist),