1 /* Python interface to new object file loading events.
2 
3    Copyright (C) 2011-2013 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 #include "defs.h"
21 #include "py-event.h"
22 
23 static PyTypeObject new_objfile_event_object_type;
24 
25 static PyObject *
26 create_new_objfile_event_object (struct objfile *objfile)
27 {
28   PyObject *objfile_event;
29   PyObject *py_objfile;
30 
31   objfile_event = create_event_object (&new_objfile_event_object_type);
32   if (!objfile_event)
33     goto fail;
34 
35   /* Note that objfile_to_objfile_object returns a borrowed reference,
36      so we don't need a decref here.  */
37   py_objfile = objfile_to_objfile_object (objfile);
38   if (!py_objfile || evpy_add_attribute (objfile_event,
39                                          "new_objfile",
40                                          py_objfile) < 0)
41     goto fail;
42 
43   return objfile_event;
44 
45  fail:
46   Py_XDECREF (objfile_event);
47   return NULL;
48 }
49 
50 /* Callback function which notifies observers when a new objfile event occurs.
51    This function will create a new Python new_objfile event object.
52    Return -1 if emit fails.  */
53 
54 int
55 emit_new_objfile_event (struct objfile *objfile)
56 {
57   PyObject *event;
58 
59   if (evregpy_no_listeners_p (gdb_py_events.new_objfile))
60     return 0;
61 
62   event = create_new_objfile_event_object (objfile);
63   if (event)
64     return evpy_emit_event (event, gdb_py_events.new_objfile);
65   return -1;
66 }
67 
68 GDBPY_NEW_EVENT_TYPE (new_objfile,
69                       "gdb.NewObjFileEvent",
70                       "NewObjFileEvent",
71                       "GDB new object file event object",
72                       event_object_type,
73                       static);
74