Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 143 insertions, 0 deletions

diff --git a/PhysX_3.4/Source/Common/src/CmTaskPool.h b/PhysX_3.4/Source/Common/src/CmTaskPool.h
new file mode 100644
index 00000000..34e6f086
--- /dev/null
+++ b/PhysX_3.4/Source/Common/src/CmTaskPool.h
@@ -0,0 +1,143 @@
+// This code contains NVIDIA Confidential Information and is disclosed to you
+// under a form of NVIDIA software license agreement provided separately to you.
+//
+// Notice
+// NVIDIA Corporation and its licensors retain all intellectual property and
+// proprietary rights in and to this software and related documentation and
+// any modifications thereto. Any use, reproduction, disclosure, or
+// distribution of this software and related documentation without an express
+// license agreement from NVIDIA Corporation is strictly prohibited.
+//
+// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
+// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
+// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
+// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// Information and code furnished is believed to be accurate and reliable.
+// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
+// information or for any infringement of patents or other rights of third parties that may
+// result from its use. No license is granted by implication or otherwise under any patent
+// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
+// This code supersedes and replaces all information previously supplied.
+// NVIDIA Corporation products are not authorized for use as critical
+// components in life support devices or systems without express written approval of
+// NVIDIA Corporation.
+//
+// Copyright (c) 2008-2016 NVIDIA Corporation. All rights reserved.
+// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  
+
+
+#ifndef PX_PHYSICS_COMMON_TASKPOOL
+#define PX_PHYSICS_COMMON_TASKPOOL
+
+#include "foundation/Px.h"
+#include "PsMutex.h"
+#include "PsSList.h"
+#include "PsAllocator.h"
+#include "PsArray.h"
+
+class PxTask;
+
+/*
+Implimentation of a thread safe task pool. (PxTask derived classes).
+
+T is the actual type of the task(currently NphaseTask or GroupSolveTask).
+*/
+
+namespace Cm
+{
+	template<class T> class TaskPool : public Ps::AlignedAllocator<16>
+	{
+		const static PxU32 TaskPoolSlabSize=64;
+
+	public:
+
+		typedef Ps::SListEntry TaskPoolItem;
+
+		PX_INLINE TaskPool() : slabArray(PX_DEBUG_EXP("taskPoolSlabArray"))
+		{
+			//we have to ensure that the list header is 16byte aligned for win64.
+			freeTasks = (Ps::SList*)allocate(sizeof(Ps::SList), __FILE__, __LINE__);
+			PX_PLACEMENT_NEW(freeTasks, Ps::SList)();
+
+			slabArray.reserve(16);
+		}
+
+		~TaskPool()
+		{
+			Ps::Mutex::ScopedLock lock(slabAllocMutex);
+
+			freeTasks->flush();
+
+			for(PxU32 i=0;i<slabArray.size();i++)
+			{
+				// call destructors
+				for(PxU32 j=0; j<TaskPoolSlabSize; j++)
+					slabArray[i][j].~T();
+
+				deallocate(slabArray[i]);
+			}
+
+			slabArray.clear();
+
+			if(freeTasks!=NULL)
+			{
+				freeTasks->~SList();
+				deallocate(freeTasks);
+				freeTasks = NULL;
+			}
+		}
+
+		T *allocTask()
+		{
+			T *rv = static_cast<T *>(freeTasks->pop());
+			if(rv == NULL)
+				return static_cast<T *>(allocateSlab());
+			else
+				return rv;
+		}
+		void freeTask(T *task)
+		{
+			freeTasks->push(*task);
+		}
+
+	private:
+
+		T *allocateSlab()
+		{
+			//ack, convoluted memory macros.
+
+			//T *newSlab=new T[TaskPoolSlabSize];
+
+			// we must align this memory.
+			T *newSlab=(T *)allocate(sizeof(T)*TaskPoolSlabSize, __FILE__, __LINE__);
+
+			new (newSlab) T();
+
+			//we keep one for the caller
+			// and build a list of tasks and insert in the free list
+			for(PxU32 i=1;i<TaskPoolSlabSize;i++)
+			{
+				new (&(newSlab[i])) T();
+				freeTasks->push(newSlab[i]);
+			}
+
+			Ps::Mutex::ScopedLock lock(slabAllocMutex);
+			slabArray.pushBack(newSlab);
+
+			return newSlab;
+		}
+
+		Ps::Mutex slabAllocMutex;
+		Ps::Array<T *> slabArray;
+
+		Ps::SList *freeTasks;
+
+	};
+
+
+} // namespace Cm
+
+
+#endif