X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/5dd5f9ec28f304ca377c42fd7f711d6cf12b90e1..5c19dc3ae3bd8e40a9c028b0deddd50ff337692c:/OSX/utilities/src/SecDispatchRelease.h

diff --git a/OSX/utilities/src/SecDispatchRelease.h b/OSX/utilities/src/SecDispatchRelease.h
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+/*
+ * Copyright (c) 2012-2014 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+
+
+#ifndef _SECDISPATCHRELEASE_H_
+#define _SECDISPATCHRELEASE_H_
+
+#include <dispatch/dispatch.h>
+#include <xpc/xpc.h>
+
+#define dispatch_retain_safe(DO) {  \
+    __typeof__(DO) _do = (DO);      \
+    if (_do)                        \
+        dispatch_retain(_do);       \
+}
+
+#define dispatch_release_safe(DO) { \
+    __typeof__(DO) _do = (DO);      \
+    if (_do)                        \
+        dispatch_release(_do);      \
+}
+
+#define dispatch_release_null(DO) { \
+    __typeof__(DO) _do = (DO);      \
+    if (_do) {                      \
+        (DO) = NULL;                \
+        dispatch_release(_do);      \
+    }                               \
+}
+
+
+#define xpc_retain_safe(XO) {  \
+    __typeof__(XO) _xo = (XO); \
+    if (_xo)                   \
+        xpc_retain(_xo);       \
+}
+
+#define xpc_release_safe(XO) { \
+    __typeof__(XO) _xo = (XO); \
+    if (_xo)                   \
+        xpc_release(_xo);      \
+}
+
+#define xpc_release_null(XO) {  \
+    __typeof__(XO) _xo = (XO); \
+    if (_xo) {                  \
+        (XO) = NULL;            \
+        xpc_release(_xo);       \
+    }                           \
+}
+
+#endif
+