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
),