diff options
Diffstat (limited to 'gpr/source/lib/dng_sdk/dng_mutex.h')
| -rw-r--r-- | gpr/source/lib/dng_sdk/dng_mutex.h | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/gpr/source/lib/dng_sdk/dng_mutex.h b/gpr/source/lib/dng_sdk/dng_mutex.h new file mode 100644 index 0000000..b067728 --- /dev/null +++ b/gpr/source/lib/dng_sdk/dng_mutex.h @@ -0,0 +1,177 @@ +/*****************************************************************************/
+// 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
+
+/*****************************************************************************/
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