1.1.6 Release.1.1.6

1 files changed, 170 insertions, 0 deletions

diff --git a/NvCloth/src/ps/unix/PsUnixMutex.cpp b/NvCloth/src/ps/unix/PsUnixMutex.cpp
new file mode 100644
index 0000000..23b6549
--- /dev/null
+++ b/NvCloth/src/ps/unix/PsUnixMutex.cpp
@@ -0,0 +1,170 @@
+// 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) 2008-2017 NVIDIA Corporation. All rights reserved.
+// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
+
+#include "foundation/PxAssert.h"
+#include "foundation/PxErrorCallback.h"
+
+#include "Ps.h"
+#include "PsFoundation.h"
+#include "PsUserAllocated.h"
+#include "PsMutex.h"
+#include "PsAtomic.h"
+#include "PsThread.h"
+
+#include <pthread.h>
+
+namespace physx
+{
+namespace shdfnd
+{
+
+namespace
+{
+struct MutexUnixImpl
+{
+	pthread_mutex_t lock;
+	Thread::Id owner;
+};
+
+MutexUnixImpl* getMutex(MutexImpl* impl)
+{
+	return reinterpret_cast<MutexUnixImpl*>(impl);
+}
+}
+
+MutexImpl::MutexImpl()
+{
+	pthread_mutexattr_t attr;
+	pthread_mutexattr_init(&attr);
+	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+#if !PX_ANDROID
+	// mimic default windows behavior where applicable
+	pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
+#endif
+	pthread_mutex_init(&getMutex(this)->lock, &attr);
+	pthread_mutexattr_destroy(&attr);
+}
+
+MutexImpl::~MutexImpl()
+{
+	pthread_mutex_destroy(&getMutex(this)->lock);
+}
+
+void MutexImpl::lock()
+{
+	int err = pthread_mutex_lock(&getMutex(this)->lock);
+	PX_ASSERT(!err);
+	PX_UNUSED(err);
+
+#if PX_DEBUG
+	getMutex(this)->owner = Thread::getId();
+#endif
+}
+
+bool MutexImpl::trylock()
+{
+	bool success = !pthread_mutex_trylock(&getMutex(this)->lock);
+#if PX_DEBUG
+	if(success)
+		getMutex(this)->owner = Thread::getId();
+#endif
+	return success;
+}
+
+void MutexImpl::unlock()
+{
+#if PX_DEBUG
+	if(getMutex(this)->owner != Thread::getId())
+	{
+		shdfnd::getFoundation().error(PxErrorCode::eINVALID_OPERATION, __FILE__, __LINE__,
+		                              "Mutex must be unlocked only by thread that has already acquired lock");
+		return;
+	}
+#endif
+
+	int err = pthread_mutex_unlock(&getMutex(this)->lock);
+	PX_ASSERT(!err);
+	PX_UNUSED(err);
+}
+
+uint32_t MutexImpl::getSize()
+{
+	return sizeof(MutexUnixImpl);
+}
+
+class ReadWriteLockImpl
+{
+  public:
+	Mutex mutex;
+	volatile int readerCounter;
+};
+
+ReadWriteLock::ReadWriteLock()
+{
+	mImpl = reinterpret_cast<ReadWriteLockImpl*>(PX_ALLOC(sizeof(ReadWriteLockImpl), "ReadWriteLockImpl"));
+	PX_PLACEMENT_NEW(mImpl, ReadWriteLockImpl);
+
+	mImpl->readerCounter = 0;
+}
+
+ReadWriteLock::~ReadWriteLock()
+{
+	mImpl->~ReadWriteLockImpl();
+	PX_FREE(mImpl);
+}
+
+void ReadWriteLock::lockReader()
+{
+	mImpl->mutex.lock();
+
+	atomicIncrement(&mImpl->readerCounter);
+
+	mImpl->mutex.unlock();
+}
+
+void ReadWriteLock::lockWriter()
+{
+	mImpl->mutex.lock();
+
+	while(mImpl->readerCounter != 0)
+		;
+}
+
+void ReadWriteLock::unlockReader()
+{
+	atomicDecrement(&mImpl->readerCounter);
+}
+
+void ReadWriteLock::unlockWriter()
+{
+	mImpl->mutex.unlock();
+}
+
+} // namespace shdfnd
+} // namespace physx