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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2018 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 PSFOUNDATION_PSATOMIC_H
#define PSFOUNDATION_PSATOMIC_H
#include "Ps.h"
namespace physx
{
namespace shdfnd
{
/* set *dest equal to val. Return the old value of *dest */
PX_FOUNDATION_API int32_t atomicExchange(volatile int32_t* dest, int32_t val);
/* if *dest == comp, replace with exch. Return original value of *dest */
PX_FOUNDATION_API int32_t atomicCompareExchange(volatile int32_t* dest, int32_t exch, int32_t comp);
/* if *dest == comp, replace with exch. Return original value of *dest */
PX_FOUNDATION_API void* atomicCompareExchangePointer(volatile void** dest, void* exch, void* comp);
/* increment the specified location. Return the incremented value */
PX_FOUNDATION_API int32_t atomicIncrement(volatile int32_t* val);
/* decrement the specified location. Return the decremented value */
PX_FOUNDATION_API int32_t atomicDecrement(volatile int32_t* val);
/* add delta to *val. Return the new value */
PX_FOUNDATION_API int32_t atomicAdd(volatile int32_t* val, int32_t delta);
/* compute the maximum of dest and val. Return the new value */
PX_FOUNDATION_API int32_t atomicMax(volatile int32_t* val, int32_t val2);
} // namespace shdfnd
} // namespace physx
#endif // #ifndef PSFOUNDATION_PSATOMIC_H
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