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