1/* Python interface to inferior events.
2
3   Copyright (C) 2009-2020 Free Software Foundation, Inc.
4
5   This file is part of GDB.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
20#ifndef PYTHON_PY_EVENT_H
21#define PYTHON_PY_EVENT_H
22
23#include "py-events.h"
24#include "command.h"
25#include "python-internal.h"
26#include "inferior.h"
27
28/* Declare all event types.  */
29#define GDB_PY_DEFINE_EVENT_TYPE(name, py_name, doc, base) \
30  extern PyTypeObject name##_event_object_type		    \
31        CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
32#include "py-event-types.def"
33#undef GDB_PY_DEFINE_EVENT_TYPE
34
35typedef struct
36{
37  PyObject_HEAD
38
39  PyObject *dict;
40} event_object;
41
42extern int emit_continue_event (ptid_t ptid);
43extern int emit_exited_event (const LONGEST *exit_code, struct inferior *inf);
44
45/* For inferior function call events, discriminate whether event is
46   before or after the call. */
47
48typedef enum
49{
50  /* Before the call */
51  INFERIOR_CALL_PRE,
52  /* after the call */
53  INFERIOR_CALL_POST,
54} inferior_call_kind;
55
56extern int emit_inferior_call_event (inferior_call_kind kind,
57				     ptid_t thread, CORE_ADDR addr);
58extern int emit_register_changed_event (struct frame_info *frame,
59				        int regnum);
60extern int emit_memory_changed_event (CORE_ADDR addr, ssize_t len);
61extern int evpy_emit_event (PyObject *event,
62                            eventregistry_object *registry);
63
64extern gdbpy_ref<> create_event_object (PyTypeObject *py_type);
65
66/* thread events can either be thread specific or process wide.  If gdb is
67   running in non-stop mode then the event is thread specific, otherwise
68   it is process wide.
69   This function returns the currently stopped thread in non-stop mode and
70   Py_None otherwise.  */
71extern gdbpy_ref<> py_get_event_thread (ptid_t ptid);
72
73extern gdbpy_ref<> create_thread_event_object (PyTypeObject *py_type,
74					       PyObject *thread);
75
76extern int emit_new_objfile_event (struct objfile *objfile);
77extern int emit_clear_objfiles_event (void);
78
79extern void evpy_dealloc (PyObject *self);
80extern int evpy_add_attribute (PyObject *event,
81                               const char *name, PyObject *attr)
82  CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
83int gdbpy_initialize_event_generic (PyTypeObject *type, const char *name)
84  CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
85
86#endif /* PYTHON_PY_EVENT_H */
87