summaryrefslogtreecommitdiff
path: root/thirdparty/bullet/src/LinearMath/btThreads.h
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/bullet/src/LinearMath/btThreads.h')
-rw-r--r--thirdparty/bullet/src/LinearMath/btThreads.h155
1 files changed, 0 insertions, 155 deletions
diff --git a/thirdparty/bullet/src/LinearMath/btThreads.h b/thirdparty/bullet/src/LinearMath/btThreads.h
deleted file mode 100644
index 05fd15ec82..0000000000
--- a/thirdparty/bullet/src/LinearMath/btThreads.h
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
-Copyright (c) 2003-2014 Erwin Coumans http://bullet.googlecode.com
-
-This software is provided 'as-is', without any express or implied warranty.
-In no event will the authors be held liable for any damages arising from the use of this software.
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it freely,
-subject to the following restrictions:
-
-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.
-2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
-3. This notice may not be removed or altered from any source distribution.
-*/
-
-
-
-#ifndef BT_THREADS_H
-#define BT_THREADS_H
-
-#include "btScalar.h" // has definitions like SIMD_FORCE_INLINE
-
-#if defined (_MSC_VER) && _MSC_VER >= 1600
-// give us a compile error if any signatures of overriden methods is changed
-#define BT_OVERRIDE override
-#endif
-
-#ifndef BT_OVERRIDE
-#define BT_OVERRIDE
-#endif
-
-const unsigned int BT_MAX_THREAD_COUNT = 64; // only if BT_THREADSAFE is 1
-
-// for internal use only
-bool btIsMainThread();
-bool btThreadsAreRunning();
-unsigned int btGetCurrentThreadIndex();
-void btResetThreadIndexCounter(); // notify that all worker threads have been destroyed
-
-///
-/// btSpinMutex -- lightweight spin-mutex implemented with atomic ops, never puts
-/// a thread to sleep because it is designed to be used with a task scheduler
-/// which has one thread per core and the threads don't sleep until they
-/// run out of tasks. Not good for general purpose use.
-///
-class btSpinMutex
-{
- int mLock;
-
-public:
- btSpinMutex()
- {
- mLock = 0;
- }
- void lock();
- void unlock();
- bool tryLock();
-};
-
-
-//
-// NOTE: btMutex* is for internal Bullet use only
-//
-// If BT_THREADSAFE is undefined or 0, should optimize away to nothing.
-// This is good because for the single-threaded build of Bullet, any calls
-// to these functions will be optimized out.
-//
-// However, for users of the multi-threaded build of Bullet this is kind
-// of bad because if you call any of these functions from external code
-// (where BT_THREADSAFE is undefined) you will get unexpected race conditions.
-//
-SIMD_FORCE_INLINE void btMutexLock( btSpinMutex* mutex )
-{
-#if BT_THREADSAFE
- mutex->lock();
-#endif // #if BT_THREADSAFE
-}
-
-SIMD_FORCE_INLINE void btMutexUnlock( btSpinMutex* mutex )
-{
-#if BT_THREADSAFE
- mutex->unlock();
-#endif // #if BT_THREADSAFE
-}
-
-SIMD_FORCE_INLINE bool btMutexTryLock( btSpinMutex* mutex )
-{
-#if BT_THREADSAFE
- return mutex->tryLock();
-#else
- return true;
-#endif // #if BT_THREADSAFE
-}
-
-
-//
-// btIParallelForBody -- subclass this to express work that can be done in parallel
-//
-class btIParallelForBody
-{
-public:
- virtual ~btIParallelForBody() {}
- virtual void forLoop( int iBegin, int iEnd ) const = 0;
-};
-
-//
-// btITaskScheduler -- subclass this to implement a task scheduler that can dispatch work to
-// worker threads
-//
-class btITaskScheduler
-{
-public:
- btITaskScheduler( const char* name );
- virtual ~btITaskScheduler() {}
- const char* getName() const { return m_name; }
-
- virtual int getMaxNumThreads() const = 0;
- virtual int getNumThreads() const = 0;
- virtual void setNumThreads( int numThreads ) = 0;
- virtual void parallelFor( int iBegin, int iEnd, int grainSize, const btIParallelForBody& body ) = 0;
-
- // internal use only
- virtual void activate();
- virtual void deactivate();
-
-protected:
- const char* m_name;
- unsigned int m_savedThreadCounter;
- bool m_isActive;
-};
-
-// set the task scheduler to use for all calls to btParallelFor()
-// NOTE: you must set this prior to using any of the multi-threaded "Mt" classes
-void btSetTaskScheduler( btITaskScheduler* ts );
-
-// get the current task scheduler
-btITaskScheduler* btGetTaskScheduler();
-
-// get non-threaded task scheduler (always available)
-btITaskScheduler* btGetSequentialTaskScheduler();
-
-// get OpenMP task scheduler (if available, otherwise returns null)
-btITaskScheduler* btGetOpenMPTaskScheduler();
-
-// get Intel TBB task scheduler (if available, otherwise returns null)
-btITaskScheduler* btGetTBBTaskScheduler();
-
-// get PPL task scheduler (if available, otherwise returns null)
-btITaskScheduler* btGetPPLTaskScheduler();
-
-// btParallelFor -- call this to dispatch work like a for-loop
-// (iterations may be done out of order, so no dependencies are allowed)
-void btParallelFor( int iBegin, int iEnd, int grainSize, const btIParallelForBody& body );
-
-
-#endif