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objc-sync.h
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objc-sync.h
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/*
* 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.
// Returns OBJC_SYNC_SUCCESS once lock is acquired.
OBJC_EXPORT int objc_sync_enter(id obj);
// End synchronizing on 'obj'.
// Returns OBJC_SYNC_SUCCESS or OBJC_SYNC_NOT_OWNING_THREAD_ERROR
OBJC_EXPORT int objc_sync_exit(id obj);
OBJC_EXPORT int objc_sync_wait(id obj, long long milliSecondsMaxWait) DEPRECATED_ATTRIBUTE;
OBJC_EXPORT int objc_sync_notify(id obj) DEPRECATED_ATTRIBUTE;
OBJC_EXPORT int objc_sync_notifyAll(id obj) DEPRECATED_ATTRIBUTE;
enum {
OBJC_SYNC_SUCCESS = 0,
OBJC_SYNC_NOT_OWNING_THREAD_ERROR = -1,
OBJC_SYNC_TIMED_OUT = -2,
OBJC_SYNC_NOT_INITIALIZED = -3
};
#endif // __OBJC_SNYC_H_