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