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