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[/] [or1k/] [trunk/] [gdb-5.3/] [gdb/] [gdb-events.c] - Rev 1773
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/* User Interface Events. Copyright 1999, 2001, 2002 Free Software Foundation, Inc. Contributed by Cygnus Solutions. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Work in progress */ /* This file was created with the aid of ``gdb-events.sh''. The bourn shell script ``gdb-events.sh'' creates the files ``new-gdb-events.c'' and ``new-gdb-events.h and then compares them against the existing ``gdb-events.[hc]''. Any differences found being reported. If editing this file, please also run gdb-events.sh and merge any changes into that script. Conversely, when making sweeping changes to this file, modifying gdb-events.sh and using its output may prove easier. */ #include "defs.h" #include "gdb-events.h" #include "gdbcmd.h" #if WITH_GDB_EVENTS static struct gdb_events null_event_hooks; static struct gdb_events queue_event_hooks; static struct gdb_events *current_event_hooks = &null_event_hooks; #endif int gdb_events_debug; #if WITH_GDB_EVENTS void breakpoint_create_event (int b) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "breakpoint_create_event\n"); if (!current_event_hooks->breakpoint_create) return; current_event_hooks->breakpoint_create (b); } void breakpoint_delete_event (int b) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "breakpoint_delete_event\n"); if (!current_event_hooks->breakpoint_delete) return; current_event_hooks->breakpoint_delete (b); } void breakpoint_modify_event (int b) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "breakpoint_modify_event\n"); if (!current_event_hooks->breakpoint_modify) return; current_event_hooks->breakpoint_modify (b); } void tracepoint_create_event (int number) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "tracepoint_create_event\n"); if (!current_event_hooks->tracepoint_create) return; current_event_hooks->tracepoint_create (number); } void tracepoint_delete_event (int number) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "tracepoint_delete_event\n"); if (!current_event_hooks->tracepoint_delete) return; current_event_hooks->tracepoint_delete (number); } void tracepoint_modify_event (int number) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "tracepoint_modify_event\n"); if (!current_event_hooks->tracepoint_modify) return; current_event_hooks->tracepoint_modify (number); } void architecture_changed_event (void) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "architecture_changed_event\n"); if (!current_event_hooks->architecture_changed) return; current_event_hooks->architecture_changed (); } void target_changed_event (void) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "target_changed_event\n"); if (!current_event_hooks->target_changed) return; current_event_hooks->target_changed (); } void selected_frame_level_changed_event (int level) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "selected_frame_level_changed_event\n"); if (!current_event_hooks->selected_frame_level_changed) return; current_event_hooks->selected_frame_level_changed (level); } #endif #if WITH_GDB_EVENTS struct gdb_events * set_gdb_event_hooks (struct gdb_events *vector) { struct gdb_events *old_events = current_event_hooks; if (vector == NULL) current_event_hooks = &queue_event_hooks; else current_event_hooks = vector; return old_events; } #endif #if WITH_GDB_EVENTS void clear_gdb_event_hooks (void) { set_gdb_event_hooks (&null_event_hooks); } #endif enum gdb_event { breakpoint_create, breakpoint_delete, breakpoint_modify, tracepoint_create, tracepoint_delete, tracepoint_modify, architecture_changed, target_changed, selected_frame_level_changed, nr_gdb_events }; struct breakpoint_create { int b; }; struct breakpoint_delete { int b; }; struct breakpoint_modify { int b; }; struct tracepoint_create { int number; }; struct tracepoint_delete { int number; }; struct tracepoint_modify { int number; }; struct selected_frame_level_changed { int level; }; struct event { enum gdb_event type; struct event *next; union { struct breakpoint_create breakpoint_create; struct breakpoint_delete breakpoint_delete; struct breakpoint_modify breakpoint_modify; struct tracepoint_create tracepoint_create; struct tracepoint_delete tracepoint_delete; struct tracepoint_modify tracepoint_modify; struct selected_frame_level_changed selected_frame_level_changed; } data; }; struct event *pending_events; struct event *delivering_events; static void append (struct event *new_event) { struct event **event = &pending_events; while ((*event) != NULL) event = &((*event)->next); (*event) = new_event; (*event)->next = NULL; } static void queue_breakpoint_create (int b) { struct event *event = XMALLOC (struct event); event->type = breakpoint_create; event->data.breakpoint_create.b = b; append (event); } static void queue_breakpoint_delete (int b) { struct event *event = XMALLOC (struct event); event->type = breakpoint_delete; event->data.breakpoint_delete.b = b; append (event); } static void queue_breakpoint_modify (int b) { struct event *event = XMALLOC (struct event); event->type = breakpoint_modify; event->data.breakpoint_modify.b = b; append (event); } static void queue_tracepoint_create (int number) { struct event *event = XMALLOC (struct event); event->type = tracepoint_create; event->data.tracepoint_create.number = number; append (event); } static void queue_tracepoint_delete (int number) { struct event *event = XMALLOC (struct event); event->type = tracepoint_delete; event->data.tracepoint_delete.number = number; append (event); } static void queue_tracepoint_modify (int number) { struct event *event = XMALLOC (struct event); event->type = tracepoint_modify; event->data.tracepoint_modify.number = number; append (event); } static void queue_architecture_changed (void) { struct event *event = XMALLOC (struct event); event->type = architecture_changed; append (event); } static void queue_target_changed (void) { struct event *event = XMALLOC (struct event); event->type = target_changed; append (event); } static void queue_selected_frame_level_changed (int level) { struct event *event = XMALLOC (struct event); event->type = selected_frame_level_changed; event->data.selected_frame_level_changed.level = level; append (event); } void gdb_events_deliver (struct gdb_events *vector) { /* Just zap any events left around from last time. */ while (delivering_events != NULL) { struct event *event = delivering_events; delivering_events = event->next; xfree (event); } /* Process any pending events. Because one of the deliveries could bail out we move everything off of the pending queue onto an in-progress queue where it can, later, be cleaned up if necessary. */ delivering_events = pending_events; pending_events = NULL; while (delivering_events != NULL) { struct event *event = delivering_events; switch (event->type) { case breakpoint_create: vector->breakpoint_create (event->data.breakpoint_create.b); break; case breakpoint_delete: vector->breakpoint_delete (event->data.breakpoint_delete.b); break; case breakpoint_modify: vector->breakpoint_modify (event->data.breakpoint_modify.b); break; case tracepoint_create: vector->tracepoint_create (event->data.tracepoint_create.number); break; case tracepoint_delete: vector->tracepoint_delete (event->data.tracepoint_delete.number); break; case tracepoint_modify: vector->tracepoint_modify (event->data.tracepoint_modify.number); break; case architecture_changed: vector->architecture_changed (); break; case target_changed: vector->target_changed (); break; case selected_frame_level_changed: vector->selected_frame_level_changed (event->data.selected_frame_level_changed.level); break; } delivering_events = event->next; xfree (event); } } void _initialize_gdb_events (void); void _initialize_gdb_events (void) { struct cmd_list_element *c; #if WITH_GDB_EVENTS queue_event_hooks.breakpoint_create = queue_breakpoint_create; queue_event_hooks.breakpoint_delete = queue_breakpoint_delete; queue_event_hooks.breakpoint_modify = queue_breakpoint_modify; queue_event_hooks.tracepoint_create = queue_tracepoint_create; queue_event_hooks.tracepoint_delete = queue_tracepoint_delete; queue_event_hooks.tracepoint_modify = queue_tracepoint_modify; queue_event_hooks.architecture_changed = queue_architecture_changed; queue_event_hooks.target_changed = queue_target_changed; queue_event_hooks.selected_frame_level_changed = queue_selected_frame_level_changed; #endif c = add_set_cmd ("eventdebug", class_maintenance, var_zinteger, (char *) (&gdb_events_debug), "Set event debugging.\n\ When non-zero, event/notify debugging is enabled.", &setlist); deprecate_cmd (c, "set debug event"); deprecate_cmd (add_show_from_set (c, &showlist), "show debug event"); add_show_from_set (add_set_cmd ("event", class_maintenance, var_zinteger, (char *) (&gdb_events_debug), "Set event debugging.\n\ When non-zero, event/notify debugging is enabled.", &setdebuglist), &showdebuglist); }
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