binutils-gdb/gdb/python/py-events.h
Nick Bull 162078c893 New python events: inferior call, register/memory changed.
gdb/ChangeLog:

	* NEWS: Mention new Python events.
	* Makefile.in (SUBDIR_PYTHON_OBS): Add py-infevents.o.
	(SUBDIR_PYTHON_SRCS): Add py-infevents.c.
	(py-infevents.o): New rule.
	* doc/observer.texi (inferior_call_pre, inferior_call_post)
	(memory_changed, register_changed): New observers.
	* infcall.c (call_function_by_hand): Notify observer before and
	after inferior call.
	* python/py-event.h (inferior_call_kind): New enum.
	(emit_inferior_call_event): New prototype.
	(emit_register_changed_event): New prototype.
	(emit_memory_changed_event): New prototype.
	* python/py-events.h (events_object): New registries
	inferior_call, memory_changed and register_changed.
	* python/py-evts.c (gdbpy_initialize_py_events): Add the
	inferior_call, memory_changed and register_changed registries.
	* python/py-infevents.c: New.
	* python/py-inferior.c (python_on_inferior_call_pre)
	(python_on_inferior_call_post, python_on_register_change)
	(python_on_memory_change): New functions.
	(gdbpy_initialize_inferior): Attach python handler to new
	observers.
	* python/py-infthread.c(gdbpy_create_ptid_object): New.
	(thpy_get_ptid) Use gdbpy_create_ptid_object.
	* python/python-internal.h:
	(gdbpy_create_ptid_object)
	(gdbpy_initialize_inferior_call_pre_event)
	(gdbpy_initialize_inferior_call_post_event)
	(gdbpy_initialize_register_changed_event)
	(gdbpy_initialize_memory_changed_event): New prototypes.
	* python/python.c (_initialize_python): Initialize new events.
	* valops.c (value_assign): Notify register_changed observer.

gdb/doc/ChangeLog:

	* python.texi (Events In Python): Document new events
	InferiorCallPreEvent, InferiorCallPostEvent, MemoryChangedEvent
	and RegisterChangedEvent.

gdb/testsuite/ChangeLog:

	* gdb.python/py-events.py (inferior_call_handler): New.
	(register_changed_handler, memory_changed_handler): New.
	(test_events.invoke): Register new handlers.
	* gdb.python/py-events.exp: Add tests for inferior call,
	memory_changed and register_changed events.
2014-12-02 11:15:29 -08:00

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C

/* Python interface to inferior events.
Copyright (C) 2009-2014 Free Software Foundation, Inc.
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 3 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, see <http://www.gnu.org/licenses/>. */
#ifndef GDB_PY_EVENTS_H
#define GDB_PY_EVENTS_H
#include "command.h"
#include "python-internal.h"
#include "inferior.h"
extern PyTypeObject thread_event_object_type
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
/* Stores a list of objects to be notified when the event for which this
registry tracks occurs. */
typedef struct
{
PyObject_HEAD
PyObject *callbacks;
} eventregistry_object;
/* Struct holding references to event registries both in python and c.
This is meant to be a singleton. */
typedef struct
{
eventregistry_object *stop;
eventregistry_object *cont;
eventregistry_object *exited;
eventregistry_object *new_objfile;
eventregistry_object *clear_objfiles;
eventregistry_object *inferior_call;
eventregistry_object *memory_changed;
eventregistry_object *register_changed;
PyObject *module;
} events_object;
/* Python events singleton. */
extern events_object gdb_py_events;
extern eventregistry_object *create_eventregistry_object (void);
extern int evregpy_no_listeners_p (eventregistry_object *registry);
#endif /* GDB_PY_EVENTS_H */