Revision control
++ // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
++ // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
++ // SPDX-FileCopyrightText: Copyright (c) 2008-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
++ // SPDX-License-Identifier: Apache-2.0
++
++ #include "foundation/windows/PxWindowsInclude.h"
++ #include "foundation/PxAtomic.h"
++
++ namespace physx
++ {
++
++ PxI32 PxAtomicExchange(volatile PxI32* val, PxI32 val2)
++ {
++ return (PxI32)InterlockedExchange((volatile LONG*)val, (LONG)val2);
++ }
++
++ PxI64 PxAtomicExchange(volatile PxI64* val, PxI64 val2)
++ {
++ return (PxI64)InterlockedExchange64((volatile LONG64*)val, (LONG64)val2);
++ }
++
++ PxI32 PxAtomicCompareExchange(volatile PxI32* dest, PxI32 exch, PxI32 comp)
++ {
++ return (PxI32)InterlockedCompareExchange((volatile LONG*)dest, exch, comp);
++ }
++
++ PxI64 PxAtomicCompareExchange(volatile PxI64* dest, PxI64 exch, PxI64 comp)
++ {
++ return (PxI64)InterlockedCompareExchange64((volatile LONG64*)dest, exch, comp);
++ }
++
++ void* PxAtomicCompareExchangePointer(volatile void** dest, void* exch, void* comp)
++ {
++ return InterlockedCompareExchangePointer((volatile PVOID*)dest, exch, comp);
++ }
++
++ PxI32 PxAtomicIncrement(volatile PxI32* val)
++ {
++ return (PxI32)InterlockedIncrement((volatile LONG*)val);
++ }
++
++ PxI64 PxAtomicIncrement(volatile PxI64* val)
++ {
++ return (PxI64)InterlockedIncrement64((volatile LONG64*)val);
++ }
++
++ PxI32 PxAtomicDecrement(volatile PxI32* val)
++ {
++ return (PxI32)InterlockedDecrement((volatile LONG*)val);
++ }
++
++ PxI64 PxAtomicDecrement(volatile PxI64* val)
++ {
++ return (PxI64)InterlockedDecrement64((volatile LONG64*)val);
++ }
++
++ PxI32 PxAtomicAdd(volatile PxI32* val, PxI32 delta)
++ {
++ if(1)
++ {
++ return (PxI32)InterlockedAdd((volatile LONG*)val, delta);
++ }
++ else
++ {
++ LONG newValue, oldValue;
++ do
++ {
++ oldValue = *val;
++ newValue = oldValue + delta;
++ } while(InterlockedCompareExchange((volatile LONG*)val, newValue, oldValue) != oldValue);
++
++ return newValue;
++ }
++ }
++
++ PxI64 PxAtomicAdd(volatile PxI64* val, PxI64 delta)
++ {
++ if(1)
++ {
++ return (PxI64)InterlockedAdd64((volatile LONG64*)val, delta);
++ }
++ else
++ {
++ LONG64 newValue, oldValue;
++ do
++ {
++ oldValue = *val;
++ newValue = oldValue + delta;
++ } while(InterlockedCompareExchange64((volatile LONG64*)val, newValue, oldValue) != oldValue);
++
++ return newValue;
++ }
++ }
++
++ PxI32 PxAtomicMax(volatile PxI32* val, PxI32 val2)
++ {
++ // Could do this more efficiently in asm...
++
++ LONG newValue, oldValue;
++
++ do
++ {
++ oldValue = *val;
++
++ newValue = val2 > oldValue ? val2 : oldValue;
++
++ } while(InterlockedCompareExchange((volatile LONG*)val, newValue, oldValue) != oldValue);
++
++ return newValue;
++ }
++
++ PxI64 PxAtomicMax(volatile PxI64* val, PxI64 val2)
++ {
++ // Could do this more efficiently in asm...
++
++ LONG64 newValue, oldValue;
++
++ do
++ {
++ oldValue = *val;
++
++ newValue = val2 > oldValue ? val2 : oldValue;
++
++ } while(InterlockedCompareExchange64((volatile LONG64*)val, newValue, oldValue) != oldValue);
++
++ return newValue;
++ }
++
++ PxI32 PxAtomicOr(volatile PxI32* val, PxI32 mask)
++ {
++ return (PxI32)InterlockedOr((volatile LONG*)val, mask);
++ }
++
++ PxI64 PxAtomicOr(volatile PxI64* val, PxI64 mask)
++ {
++ return (PxI64)InterlockedOr64((volatile LONG64*)val, mask);
++ }
++
++ PxI32 PxAtomicAnd(volatile PxI32* val, PxI32 mask)
++ {
++ return (PxI32)InterlockedAnd((volatile LONG*)val, mask);
++ }
++
++ PxI64 PxAtomicAnd(volatile PxI64* val, PxI64 mask)
++ {
++ return (PxI64)InterlockedAnd64((volatile LONG64*)val, mask);
++ }
++
++ } // namespace physx