mirror of
https://github.com/TorqueGameEngines/Torque3D.git
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62 lines
2.4 KiB
C
62 lines
2.4 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (c) 2012 GarageGames, LLC
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//-----------------------------------------------------------------------------
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#ifndef _TORQUE_PLATFORM_PLATFORMINTRINSICS_VISUALC_H_
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#define _TORQUE_PLATFORM_PLATFORMINTRINSICS_VISUALC_H_
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/// @file
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/// Compiler intrinsics for Visual C++.
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#include <intrin.h>
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// Fetch-And-Add
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//
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// NOTE: These do not return the pre-add value because
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// not all platforms (damn you OSX) can do that.
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//
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inline void dFetchAndAdd( volatile U32& ref, U32 val )
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{
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_InterlockedExchangeAdd( ( volatile long* ) &ref, val );
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}
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inline void dFetchAndAdd( volatile S32& ref, S32 val )
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{
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_InterlockedExchangeAdd( ( volatile long* ) &ref, val );
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}
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// Compare-And-Swap
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inline bool dCompareAndSwap( volatile U32& ref, U32 oldVal, U32 newVal )
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{
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return ( _InterlockedCompareExchange( ( volatile long* ) &ref, newVal, oldVal ) == oldVal );
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}
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inline bool dCompareAndSwap( volatile U64& ref, U64 oldVal, U64 newVal )
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{
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return ( _InterlockedCompareExchange64( ( volatile __int64* ) &ref, newVal, oldVal ) == oldVal );
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}
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/// Performs an atomic read operation.
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inline U32 dAtomicRead( volatile U32 &ref )
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{
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return _InterlockedExchangeAdd( ( volatile long* )&ref, 0 );
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}
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#endif // _TORQUE_PLATFORM_PLATFORMINTRINSICS_VISUALC_H_
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