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178 lines
3.3 KiB
178 lines
3.3 KiB
/*****************************************************************************/
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// Copyright 2006-2008 Adobe Systems Incorporated
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// All Rights Reserved.
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//
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// NOTICE: Adobe permits you to use, modify, and distribute this file in
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// accordance with the terms of the Adobe license agreement accompanying it.
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/*****************************************************************************/
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/* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_mutex.h#2 $ */
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/* $DateTime: 2012/09/05 12:31:51 $ */
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/* $Change: 847652 $ */
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/* $Author: tknoll $ */
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/******************************************************************************/
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#ifndef __dng_mutex__
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#define __dng_mutex__
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/******************************************************************************/
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#include "dng_flags.h"
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/******************************************************************************/
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#include "dng_types.h"
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#if qDNGThreadSafe
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#include "dng_pthread.h"
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#endif
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/******************************************************************************/
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class dng_mutex
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{
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public:
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enum
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{
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kDNGMutexLevelLeaf = 0x70000000u
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};
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dng_mutex (const char *mutexName,
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uint32 mutexLevel = kDNGMutexLevelLeaf);
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virtual ~dng_mutex ();
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void Lock ();
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void Unlock ();
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const char *MutexName () const;
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protected:
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#if qDNGThreadSafe
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pthread_mutex_t fPthreadMutex;
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const uint32 fMutexLevel;
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uint32 fRecursiveLockCount;
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dng_mutex *fPrevHeldMutex;
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const char * const fMutexName;
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friend class dng_condition;
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#endif
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private:
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// Hidden copy constructor and assignment operator.
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dng_mutex (const dng_mutex &mutex);
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dng_mutex & operator= (const dng_mutex &mutex);
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};
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/*****************************************************************************/
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class dng_lock_mutex
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{
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private:
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dng_mutex *fMutex;
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public:
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dng_lock_mutex (dng_mutex *mutex);
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~dng_lock_mutex ();
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private:
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// Hidden copy constructor and assignment operator.
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dng_lock_mutex (const dng_lock_mutex &lock);
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dng_lock_mutex & operator= (const dng_lock_mutex &lock);
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};
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/*****************************************************************************/
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class dng_unlock_mutex
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{
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private:
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dng_mutex *fMutex;
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public:
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dng_unlock_mutex (dng_mutex *mutex);
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~dng_unlock_mutex ();
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private:
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// Hidden copy constructor and assignment operator.
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dng_unlock_mutex (const dng_unlock_mutex &unlock);
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dng_unlock_mutex & operator= (const dng_unlock_mutex &unlock);
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};
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/*****************************************************************************/
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#if qDNGThreadSafe
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/*****************************************************************************/
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class dng_condition
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{
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public:
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dng_condition ();
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~dng_condition ();
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bool Wait (dng_mutex &mutex, double timeoutSecs = -1.0);
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void Signal ();
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void Broadcast ();
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protected:
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pthread_cond_t fPthreadCondition;
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private:
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// Hidden copy constructor and assignment operator.
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dng_condition (const dng_condition &condition);
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dng_condition & operator= (const dng_condition &condition);
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};
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/*****************************************************************************/
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#endif // qDNGThreadSafe
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/*****************************************************************************/
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#endif
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/*****************************************************************************/
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