71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
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/*
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Bullet Continuous Collision Detection and Physics Library
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Copyright (c) 2003-2018 Erwin Coumans http://bulletphysics.com
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef BT_THREAD_SUPPORT_INTERFACE_H
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#define BT_THREAD_SUPPORT_INTERFACE_H
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class btCriticalSection
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{
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public:
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btCriticalSection() {}
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virtual ~btCriticalSection() {}
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virtual void lock() = 0;
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virtual void unlock() = 0;
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};
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class btThreadSupportInterface
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{
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public:
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virtual ~btThreadSupportInterface() {}
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virtual int getNumWorkerThreads() const = 0; // number of worker threads (total number of logical processors - 1)
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virtual int getCacheFriendlyNumThreads() const = 0; // the number of logical processors sharing a single L3 cache
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virtual int getLogicalToPhysicalCoreRatio() const = 0; // the number of logical processors per physical processor (usually 1 or 2)
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virtual void runTask( int threadIndex, void* userData ) = 0;
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virtual void waitForAllTasks() = 0;
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virtual btCriticalSection* createCriticalSection() = 0;
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virtual void deleteCriticalSection( btCriticalSection* criticalSection ) = 0;
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typedef void( *ThreadFunc )( void* userPtr );
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struct ConstructionInfo
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{
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ConstructionInfo( const char* uniqueName,
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ThreadFunc userThreadFunc,
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int threadStackSize = 65535
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)
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:m_uniqueName( uniqueName ),
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m_userThreadFunc( userThreadFunc ),
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m_threadStackSize( threadStackSize )
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{
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}
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const char* m_uniqueName;
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ThreadFunc m_userThreadFunc;
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int m_threadStackSize;
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};
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static btThreadSupportInterface* create( const ConstructionInfo& info );
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};
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#endif //BT_THREAD_SUPPORT_INTERFACE_H
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