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include/AK/Tools/Win32/AkLock.h

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00001 
00002 //
00003 // AkLock.h
00004 //
00005 // AudioKinetic Lock class
00006 //
00007 // Copyright (c) 2006 Audiokinetic Inc. / All Rights Reserved
00008 //
00010 
00011 #ifndef _AKLOCK_H_
00012 #define _AKLOCK_H_
00013 
00014 #include <AK/SoundEngine/Common/AkTypes.h>
00015 #include <windows.h>    //For CRITICAL_SECTION
00016 
00017 //-----------------------------------------------------------------------------
00018 // CAkLock class
00019 //-----------------------------------------------------------------------------
00020 class CAkLock
00021 {
00022 public:
00024     CAkLock() 
00025     {
00026 #ifdef AK_USE_METRO_API
00027         ::InitializeCriticalSectionEx( &m_csLock, 0, 0 );
00028 #else
00029         ::InitializeCriticalSection( &m_csLock );
00030 #endif
00031     }
00032 
00034     ~CAkLock()
00035     {
00036         ::DeleteCriticalSection( &m_csLock );
00037     }
00038 
00040     inline AKRESULT Lock( void )
00041     {
00042         ::EnterCriticalSection( &m_csLock );
00043         return AK_Success;
00044     }
00045 
00047     inline AKRESULT Unlock( void )
00048     {
00049         ::LeaveCriticalSection( &m_csLock );
00050         return AK_Success;
00051     }
00052 
00053 /*  // Returns AK_Success if lock aquired, AK_Fail otherwise.
00054     inline AKRESULT Trylock( void )
00055     {
00056         if ( ::TryEnterCriticalSection( &m_csLock ) )
00057             return AK_Success;
00058         return AK_Fail;
00059     } */
00060 
00061 private:
00062     CRITICAL_SECTION  m_csLock; 
00063 };
00064 
00065 #endif // _AKLOCK_H_

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