1/*
2 * Copyright (c) 2012-2014 Apple Inc. All Rights Reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24
25
26#ifndef _SECDISPATCHRELEASE_H_
27#define _SECDISPATCHRELEASE_H_
28
29#include <dispatch/dispatch.h>
30#include <xpc/xpc.h>
31
32#define dispatch_retain_safe(DO) {  \
33    __typeof__(DO) _do = (DO);      \
34    if (_do)                        \
35        dispatch_retain(_do);       \
36}
37
38#define dispatch_release_safe(DO) { \
39    __typeof__(DO) _do = (DO);      \
40    if (_do)                        \
41        dispatch_release(_do);      \
42}
43
44#define dispatch_release_null(DO) { \
45    __typeof__(DO) _do = (DO);      \
46    if (_do) {                      \
47        (DO) = NULL;                \
48        dispatch_release(_do);      \
49    }                               \
50}
51
52
53#define xpc_retain_safe(XO) {  \
54    __typeof__(XO) _xo = (XO); \
55    if (_xo)                   \
56        xpc_retain(_xo);       \
57}
58
59#define xpc_release_safe(XO) { \
60    __typeof__(XO) _xo = (XO); \
61    if (_xo)                   \
62        xpc_release(_xo);      \
63}
64
65#define xpc_release_null(XO) {  \
66    __typeof__(XO) _xo = (XO); \
67    if (_xo) {                  \
68        (XO) = NULL;            \
69        xpc_release(_xo);       \
70    }                           \
71}
72
73#endif
74
75