GDB (xrefs)

py-threadevent.c
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1 /* Copyright (C) 2009-2018 Free Software Foundation, Inc.
2
3 This file is part of GDB.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18 #include "defs.h"
19 #include "py-event.h"
20 #include "infrun.h"
21
22 /* thread events can either be thread specific or process wide. If gdb is
23 running in non-stop mode then the event is thread specific, otherwise
24 it is process wide.
25 This function returns the currently stopped thread in non-stop mode and
26 Py_None otherwise. In each case it returns a borrowed reference. */
27
28 static PyObject *get_event_thread (void)
29 CPYCHECKER_RETURNS_BORROWED_REF;
30
31 static PyObject *
32 get_event_thread (void)
33 {
34 PyObject *thread = NULL;
35
36 if (non_stop)
37 thread = (PyObject *) find_thread_object (inferior_ptid);
38 else
39 thread = Py_None;
40
41 if (!thread)
42 {
43 PyErr_SetString (PyExc_RuntimeError, "Could not find event thread");
44 return NULL;
45 }
46
47 return thread;
48 }
49
50 gdbpy_ref<>
51 create_thread_event_object (PyTypeObject *py_type, PyObject *thread)
52 {
53 gdbpy_ref<> thread_event_obj (create_event_object (py_type));
54 if (thread_event_obj == NULL)
55 return NULL;
56
57 if (thread == NULL)
58 {
59 thread = get_event_thread ();
60 if (!thread)
61 return NULL;
62 }
63
64 if (evpy_add_attribute (thread_event_obj.get (),
65 "inferior_thread",
66 thread) < 0)
67 return NULL;
68
69 return thread_event_obj;
70 }
CPYCHECKER_RETURNS_BORROWED_REF
#define CPYCHECKER_RETURNS_BORROWED_REF
Definition: python-internal.h:36
defs.h
evpy_add_attribute
int evpy_add_attribute(PyObject *event, const char *name, PyObject *attr)
Definition: py-event.c:50
gdb::ref_ptr< T, gdbpy_ref_policy< T > >
find_thread_object
thread_object * find_thread_object(ptid_t ptid)
Definition: py-inferior.c:307
infrun.h
create_thread_event_object
gdbpy_ref create_thread_event_object(PyTypeObject *py_type, PyObject *thread)
Definition: py-threadevent.c:51
non_stop
int non_stop
Definition: infrun.c:204
py-event.h
inferior_ptid
ptid_t inferior_ptid
Definition: infcmd.c:94
gdb::ref_ptr::get
T * get() const
Definition: gdb_ref_ptr.h:130
create_event_object
gdbpy_ref create_event_object(PyTypeObject *py_type)
Definition: py-event.c:31
get_event_thread
static PyObject * get_event_thread(void)
Definition: py-threadevent.c:28