Artifact 98f14fbc8c11c0104dfb21f8ba39a9e2c3b56aa6979751879a276ff8c68a9151:
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src/OFMutex.m
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2016-01-03 00:41:26
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/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 * Jonathan Schleifer <js@heap.zone> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #include "config.h" #import "OFMutex.h" #import "OFString.h" #import "OFInitializationFailedException.h" #import "OFLockFailedException.h" #import "OFStillLockedException.h" #import "OFUnlockFailedException.h" @implementation OFMutex @synthesize name = _name; + (instancetype)mutex { return [[[self alloc] init] autorelease]; } - init { self = [super init]; if (!of_mutex_new(&_mutex)) { Class c = [self class]; [self release]; @throw [OFInitializationFailedException exceptionWithClass: c]; } _initialized = true; return self; } - (void)dealloc { if (_initialized) if (!of_mutex_free(&_mutex)) @throw [OFStillLockedException exceptionWithLock: self]; [_name release]; [super dealloc]; } - (void)lock { if (!of_mutex_lock(&_mutex)) @throw [OFLockFailedException exceptionWithLock: self]; } - (bool)tryLock { return of_mutex_trylock(&_mutex); } - (void)unlock { if (!of_mutex_unlock(&_mutex)) @throw [OFUnlockFailedException exceptionWithLock: self]; } - (OFString*)description { if (_name == nil) return [super description]; return [OFString stringWithFormat: @"<%@: %@>", [self className], _name]; } @end