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Make it simpler to add events to Python

Browse source 
The first patch in this series went through several iterations as I'd
forgotten how many places had to be touched to add a new event and a
new event type.

This patch simplifies the process using two new ".def" files.  Now, a
new event type can be added by adding a line to "py-event-types.def",
and a new event registry can be added by adding a line to
"py-all-events.def".

ChangeLog
2017-09-11  Tom Tromey  <tom@tromey.com>

	* python/python.c (do_start_initialization): Use
	py-event-types.def to initialize types.
	Define all object type structures.
	* python/python-internal.h: Don't declare event initialization
	functions.
	* python/py-threadevent.c (thread_event_object_type): Don't
	define.
	* python/py-stopevent.c (stop_event_object_type): Don't define.
	* python/py-signalevent.c (signal_event_object_type): Don't
	declare or define.
	* python/py-newobjfileevent.c (new_objfile_event_object_type)
	(clear_objfiles_event_object_type): Don't declare or define.
	* python/py-infevents.c (inferior_call_pre_event_object_type)
	(inferior_call_post_event_object_type)
	(register_changed_event_object_type)
	(memory_changed_event_object_type): Don't declare or define.
	* python/py-inferior.c (new_thread_event_object_type)
	(new_inferior_event_object_type)
	(inferior_deleted_event_object_type): Don't declare or define.
	* python/py-exitedevent.c (exited_event_object_type): Don't
	declare or define.
	* python/py-evts.c (gdbpy_initialize_py_events): Use
	py-all-events.def.
	* python/py-events.h (thread_event_object_type): Don't declare.
	(events_object): Use py-all-events.def.
	* python/py-event.h (GDBPY_NEW_EVENT_TYPE): Remove.  Use
	py-event-types.def.
	* python/py-event-types.def: New file.
	* python/py-continueevent.c (create_continue_event_object): Don't
	declare or define.
	* python/py-bpevent.c (breakpoint_event_object_type): Don't
	declare or define.
	* python/py-all-events.def: New file.
This commit is contained in:
Tom Tromey 2017-09-08 15:38:12 -06:00
parent 35c61a1dd5
commit 7d221d749c
17 changed files with 250 additions and 303 deletions
Download patch file Download diff file Expand all files Collapse all files

74
gdb/python/py-event.h
View file

@ -26,74 +26,12 @@
#include "inferior.h"
#include "py-ref.h"
/* This macro creates the following functions:
gdbpy_initialize_{NAME}_event
Used to add the newly created event type to the gdb module.
and the python type data structure for the event:
struct PyTypeObject {NAME}_event_object_type
NAME is the name of the event.
PY_PATH is a string representing the module and python name of
the event.
PY_NAME a string representing what the event should be called in
python.
DOC Python documentation for the new event type
BASE the base event for this event usually just event_object_type.
*/
#define GDBPY_NEW_EVENT_TYPE(name, py_path, py_name, doc, base) \
\
PyTypeObject name##_event_object_type \
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object") \
= { \
PyVarObject_HEAD_INIT (NULL, 0) \
py_path, /* tp_name */ \
sizeof (event_object), /* tp_basicsize */ \
0, /* tp_itemsize */ \
evpy_dealloc, /* tp_dealloc */ \
0, /* tp_print */ \
0, /* tp_getattr */ \
0, /* tp_setattr */ \
0, /* tp_compare */ \
0, /* tp_repr */ \
0, /* tp_as_number */ \
0, /* tp_as_sequence */ \
0, /* tp_as_mapping */ \
0, /* tp_hash */ \
0, /* tp_call */ \
0, /* tp_str */ \
0, /* tp_getattro */ \
0, /* tp_setattro */ \
0, /* tp_as_buffer */ \
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ \
doc, /* tp_doc */ \
0, /* tp_traverse */ \
0, /* tp_clear */ \
0, /* tp_richcompare */ \
0, /* tp_weaklistoffset */ \
0, /* tp_iter */ \
0, /* tp_iternext */ \
0, /* tp_methods */ \
0, /* tp_members */ \
0, /* tp_getset */ \
&base, /* tp_base */ \
0, /* tp_dict */ \
0, /* tp_descr_get */ \
0, /* tp_descr_set */ \
0, /* tp_dictoffset */ \
0, /* tp_init */ \
0 /* tp_alloc */ \
}; \
\
int \
gdbpy_initialize_##name##_event (void) \
{ \
return gdbpy_initialize_event_generic (&name##_event_object_type, \
py_name); \
}
/* Declare all event types. */
#define GDB_PY_DEFINE_EVENT_TYPE(name, py_name, doc, base) \
extern PyTypeObject name##_event_object_type \
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
#include "py-event-types.def"
#undef GDB_PY_DEFINE_EVENT_TYPE
typedef struct
{