/* * Copyright (c) 2002, 2006 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 __OBJC_SNYC_H_ #define __OBJC_SNYC_H_ #include <objc/objc.h> /** * Begin synchronizing on 'obj'. * Allocates recursive pthread_mutex associated with 'obj' if needed. * * @param obj The object to begin synchronizing on. * * @return OBJC_SYNC_SUCCESS once lock is acquired. */ OBJC_EXPORT int objc_sync_enter(id _Nonnull obj) OBJC_AVAILABLE(10.3, 2.0, 9.0, 1.0, 2.0); /** * End synchronizing on 'obj'. * * @param obj The object to end synchronizing on. * * @return OBJC_SYNC_SUCCESS or OBJC_SYNC_NOT_OWNING_THREAD_ERROR */ OBJC_EXPORT int objc_sync_exit(id _Nonnull obj) OBJC_AVAILABLE(10.3, 2.0, 9.0, 1.0, 2.0); enum { OBJC_SYNC_SUCCESS = 0, OBJC_SYNC_NOT_OWNING_THREAD_ERROR = -1 }; #endif // __OBJC_SYNC_H_