hkSemaphoreBusyWait.h
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- /*
- *
- * Confidential Information of Telekinesys Research Limited (t/a Havok). Not for disclosure or distribution without Havok's
- * prior written consent. This software contains code, techniques and know-how which is confidential and proprietary to Havok.
- * Level 2 and Level 3 source code contains trade secrets of Havok. Havok Software (C) Copyright 1999-2009 Telekinesys Research Limited t/a Havok. All Rights Reserved. Use of this software is subject to the terms of an end user license agreement.
- *
- */
- #ifndef HKBASE_HK_SEMAPHORE_BUSY_WAIT__H
- #define HKBASE_HK_SEMAPHORE_BUSY_WAIT__H
- #include <Common/Base/Config/hkConfigThread.h>
- #if ( defined(HK_PLATFORM_PS3_PPU) || defined(HK_PLATFORM_PS3_SPU)) && (HK_CONFIG_THREAD == HK_CONFIG_MULTI_THREADED)
- /// A wrapper class for a semaphore that can work on both SPU and PPU
- class hkSemaphoreBusyWait
- {
- public:
- HK_DECLARE_NONVIRTUAL_CLASS_ALLOCATOR(HK_MEMORY_CLASS_BASE, hkSemaphoreBusyWait);
- /// Create a semaphore with an initial count and a maximum count. Max count currently ignored.
- hkSemaphoreBusyWait( int initialCount, int maxCount );
- hkSemaphoreBusyWait( hkFinishLoadedObjectFlag f) {}
- /// Destruct the Semaphore
- ~hkSemaphoreBusyWait();
- /// This call will block until the semaphore is released.
- void acquire();
-
- /// Release the semaphore. Releases a thread blocked by acquire().
- void release(int count = 1);
- // These static functions work on both spu and ppu.
- static void HK_CALL acquire(hkSemaphoreBusyWait* semaphoreOnPpu);
- static void HK_CALL release(hkSemaphoreBusyWait* semaphoreOnPpu, int count = 1);
- public:
- static HK_ALIGN( hkUint32 m_cacheLine[128/4], 128 );
- protected:
- hkUint32 m_semphoreValue; // for PPU and SPU
- HK_CPU_PTR(hkUint32*) m_semaphore; // for SPU, points to shared int above
- hkUint32 m_ppuEventPort; // for sleeping PPU threads
- hkUint32 m_eventQueue;
- };
- #else
- #include <Common/Base/Thread/Semaphore/hkSemaphore.h>
- // fallback for non Cell platforms, or non threaded Cell builds
- typedef hkSemaphore hkSemaphoreBusyWait;
- #endif
- #endif // HKBASE_HK_SEMAPHORE_BUSY_WAIT__H
- /*
- * Havok SDK - NO SOURCE PC DOWNLOAD, BUILD(#20090216)
- *
- * Confidential Information of Havok. (C) Copyright 1999-2009
- * Telekinesys Research Limited t/a Havok. All Rights Reserved. The Havok
- * Logo, and the Havok buzzsaw logo are trademarks of Havok. Title, ownership
- * rights, and intellectual property rights in the Havok software remain in
- * Havok and/or its suppliers.
- *
- * Use of this software for evaluation purposes is subject to and indicates
- * acceptance of the End User licence Agreement for this product. A copy of
- * the license is included with this software and is also available at www.havok.com/tryhavok.
- *
- */