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Change event code to use gdbpy_ref

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This changes the event code in the Python layer to use
gdbpy_ref, simplifying the logic in many places.

It also changes evpy_emit_event not to steal a reference to its
argument.  This is simpler to do now that gdbpy_ref is in use;
it's also a reasonable cleanup in its own right.  While doing this I
realized that evpy_emit_event should not be calling gdbpy_print_stack
(all the outermost callers do this if needed), so I removed this as
well.

2017-01-10  Tom Tromey  <tom@tromey.com>

	* python/py-threadevent.c (create_thread_event_object): Use
	gdbpy_ref.
	* python/py-stopevent.c (create_stop_event_object): Simplify.
	(emit_stop_event): Use gdbpy_ref.
	* python/py-signalevent.c (create_signal_event_object): Use
	gdbpy_ref.
	* python/py-newobjfileevent.c (create_new_objfile_event_object)
	(emit_new_objfile_event, create_clear_objfiles_event_object)
	(emit_clear_objfiles_event): Use gdbpy_ref.
	* python/py-infevents.c (create_inferior_call_event_object)
	(create_register_changed_event_object)
	(create_memory_changed_event_object, emit_inferior_call_event)
	(emit_memory_changed_event, emit_register_changed_event): Use
	gdbpy_ref.
	* python/py-exitedevent.c (create_exited_event_object)
	(emit_exited_event): Use gdbpy_ref.
	* python/py-event.h (evpy_emit_event): Remove
	CPYCHECKER_STEALS_REFERENCE_TO_ARG annotation.
	* python/py-event.c (evpy_emit_event): Use gdbpy_ref.
	* python/py-continueevent.c (emit_continue_event): Use
	gdbpy_ref.
	* python/py-breakpoint.c (gdbpy_breakpoint_created)
	(gdbpy_breakpoint_deleted, gdbpy_breakpoint_modified): Use
	gdbpy_ref.
	* python/py-bpevent.c (create_breakpoint_event_object): Use
	gdbpy_ref.
This commit is contained in:
Tom Tromey
2016-11-06 20:42:32 -07:00
parent a68ff33e0d
commit abf5651e47
12 changed files with 167 additions and 272 deletions
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9
gdb/python/py-continueevent.c
View File

@ -19,6 +19,7 @@
#include "defs.h"
#include "py-event.h"
#include "py-ref.h"
extern PyTypeObject continue_event_object_type
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
@ -36,14 +37,12 @@ create_continue_event_object (void)
int
emit_continue_event (ptid_t ptid)
{
PyObject *event;
if (evregpy_no_listeners_p (gdb_py_events.cont))
return 0;
event = create_continue_event_object ();
if (event)
return evpy_emit_event (event, gdb_py_events.cont);
gdbpy_ref event (create_continue_event_object ());
if (event != NULL)
return evpy_emit_event (event.get (), gdb_py_events.cont);
return -1;
}