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Diffstat (limited to 'dep/src/zthread/macos/FastLock.h')
-rw-r--r-- | dep/src/zthread/macos/FastLock.h | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/dep/src/zthread/macos/FastLock.h b/dep/src/zthread/macos/FastLock.h deleted file mode 100644 index 012843f2e3e..00000000000 --- a/dep/src/zthread/macos/FastLock.h +++ /dev/null @@ -1,140 +0,0 @@ -/* - * Copyright (c) 2005, Eric Crahen - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is furnished - * to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - */ - -#ifndef __ZTFASTLOCK_H__ -#define __ZTFASTLOCK_H__ - -#include "zthread/NonCopyable.h" -#include "zthread/Exceptions.h" - -#include <assert.h> -#include <CoreServices/CoreServices.h> -//#include <Multiprocessing.h> - -namespace ZThread { - -/** - * @class FastLock - * - * @author Eric Crahen <http://www.code-foo.com> - * @date <2003-07-16T23:25:31-0400> - * @version 2.1.6 - * - */ -class FastLock : private NonCopyable { - - MPCriticalRegionID _mtx; - - public: - - /** - * Create a new FastLock. No safety or state checks are performed. - * - * @exception Initialization_Exception - not thrown - */ - inline FastLock() { - - // Apple TN1071 - static bool init = MPLibraryIsLoaded(); - - if(!init || MPCreateCriticalRegion(&_mtx) != noErr) { - assert(0); - throw Initialization_Exception(); - } - - } - - /** - * Destroy a FastLock. No safety or state checks are performed. - */ - inline ~FastLock() throw () { - - OSStatus status = MPDeleteCriticalRegion(_mtx); - if(status != noErr) - assert(false); - - } - - /** - * Acquire an exclusive lock. No safety or state checks are performed. - * - * @exception Synchronization_Exception - not thrown - */ - inline void acquire() { - - if(MPEnterCriticalRegion(_mtx, kDurationForever) != noErr) - throw Synchronization_Exception(); - - } - - /** - * Try to acquire an exclusive lock. No safety or state checks are performed. - * This function returns immediately regardless of the value of the timeout - * - * @param timeout Unused - * @return bool - * @exception Synchronization_Exception - not thrown - */ - inline bool tryAcquire(unsigned long timeout=0) { - - OSStatus status = - MPEnterCriticalRegion(_mtx, kDurationMillisecond * timeout); - - switch(status) { - case kMPTimeoutErr: - return false; - - case noErr: - return true; - - } - - assert(0); - throw Synchronization_Exception(); - - } - - /** - * Release an exclusive lock. No safety or state checks are performed. - * The caller should have already acquired the lock, and release it - * only once. - * - * @exception Synchronization_Exception - not thrown - */ - inline void release() { - - if(MPExitCriticalRegion(_mtx) != noErr) - throw Synchronization_Exception(); - - } - - -}; /* FastLock */ - - -}; - -#endif - - - - |