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01b71697 KP |
1 | /* Python interface to new object file loading events. |
2 | ||
32d0add0 | 3 | Copyright (C) 2011-2015 Free Software Foundation, Inc. |
01b71697 KP |
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 | ||
d071a26b | 20 | #include "defs.h" |
01b71697 KP |
21 | #include "py-event.h" |
22 | ||
62eec1a5 TT |
23 | static PyTypeObject new_objfile_event_object_type |
24 | CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object"); | |
4ffbba72 DE |
25 | static PyTypeObject clear_objfiles_event_object_type |
26 | CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object"); | |
01b71697 | 27 | |
49a8461d | 28 | static PyObject * |
01b71697 KP |
29 | create_new_objfile_event_object (struct objfile *objfile) |
30 | { | |
31 | PyObject *objfile_event; | |
f1070426 | 32 | PyObject *py_objfile; |
01b71697 KP |
33 | |
34 | objfile_event = create_event_object (&new_objfile_event_object_type); | |
35 | if (!objfile_event) | |
36 | goto fail; | |
37 | ||
f1070426 TT |
38 | /* Note that objfile_to_objfile_object returns a borrowed reference, |
39 | so we don't need a decref here. */ | |
01b71697 KP |
40 | py_objfile = objfile_to_objfile_object (objfile); |
41 | if (!py_objfile || evpy_add_attribute (objfile_event, | |
42 | "new_objfile", | |
43 | py_objfile) < 0) | |
44 | goto fail; | |
45 | ||
46 | return objfile_event; | |
47 | ||
48 | fail: | |
49 | Py_XDECREF (objfile_event); | |
50 | return NULL; | |
51 | } | |
52 | ||
53 | /* Callback function which notifies observers when a new objfile event occurs. | |
54 | This function will create a new Python new_objfile event object. | |
55 | Return -1 if emit fails. */ | |
56 | ||
57 | int | |
58 | emit_new_objfile_event (struct objfile *objfile) | |
59 | { | |
60 | PyObject *event; | |
61 | ||
62 | if (evregpy_no_listeners_p (gdb_py_events.new_objfile)) | |
63 | return 0; | |
64 | ||
65 | event = create_new_objfile_event_object (objfile); | |
66 | if (event) | |
67 | return evpy_emit_event (event, gdb_py_events.new_objfile); | |
68 | return -1; | |
69 | } | |
70 | ||
71 | GDBPY_NEW_EVENT_TYPE (new_objfile, | |
72 | "gdb.NewObjFileEvent", | |
73 | "NewObjFileEvent", | |
74 | "GDB new object file event object", | |
75 | event_object_type, | |
76 | static); | |
4ffbba72 DE |
77 | \f |
78 | /* Subroutine of emit_clear_objfiles_event to simplify it. */ | |
79 | ||
80 | static PyObject * | |
81 | create_clear_objfiles_event_object (void) | |
82 | { | |
83 | PyObject *objfile_event; | |
84 | PyObject *py_progspace; | |
85 | ||
86 | objfile_event = create_event_object (&clear_objfiles_event_object_type); | |
87 | if (!objfile_event) | |
88 | goto fail; | |
89 | ||
90 | /* Note that pspace_to_pspace_object returns a borrowed reference, | |
91 | so we don't need a decref here. */ | |
92 | py_progspace = pspace_to_pspace_object (current_program_space); | |
93 | if (!py_progspace || evpy_add_attribute (objfile_event, | |
94 | "progspace", | |
95 | py_progspace) < 0) | |
96 | goto fail; | |
97 | ||
98 | return objfile_event; | |
99 | ||
100 | fail: | |
101 | Py_XDECREF (objfile_event); | |
102 | return NULL; | |
103 | } | |
104 | ||
105 | /* Callback function which notifies observers when the "clear objfiles" | |
106 | event occurs. | |
107 | This function will create a new Python clear_objfiles event object. | |
108 | Return -1 if emit fails. */ | |
109 | ||
110 | int | |
111 | emit_clear_objfiles_event (void) | |
112 | { | |
113 | PyObject *event; | |
114 | ||
115 | if (evregpy_no_listeners_p (gdb_py_events.clear_objfiles)) | |
116 | return 0; | |
117 | ||
118 | event = create_clear_objfiles_event_object (); | |
119 | if (event) | |
120 | return evpy_emit_event (event, gdb_py_events.clear_objfiles); | |
121 | return -1; | |
122 | } | |
123 | ||
124 | GDBPY_NEW_EVENT_TYPE (clear_objfiles, | |
125 | "gdb.ClearObjFilesEvent", | |
126 | "ClearObjFilesEvent", | |
127 | "GDB clear object files event object", | |
128 | event_object_type, | |
129 | static); |