94 lines
3.0 KiB
C++
94 lines
3.0 KiB
C++
/****************************************************************************
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Copyright (c) 2010, Radon Labs GmbH
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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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 deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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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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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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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 FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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#include "core/types.h"
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//------------------------------------------------------------------------------
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namespace OSX
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{
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class OSXInterlocked
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{
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public:
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/// interlocked increment
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static int Increment(int volatile& var);
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/// interlocked decrement
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static int Decrement(int volatile& var);
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/// interlocked add
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static void Add(int volatile& var, int add);
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/// interlocked exchange
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static int Exchange(int volatile* dest, int value);
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/// interlocked compare-exchange
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static int CompareExchange(int volatile* dest, int exchange, int comparand);
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};
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//------------------------------------------------------------------------------
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/**
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*/
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inline int
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OSXInterlocked::Increment(int volatile& var)
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{
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return __sync_add_and_fetch(&var, 1);
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline int
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OSXInterlocked::Decrement(int volatile& var)
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{
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return __sync_sub_and_fetch(&var, 1);
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline void
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OSXInterlocked::Add(int volatile& var, int add)
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{
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__sync_add_and_fetch(&var, add);
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline int
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OSXInterlocked::Exchange(int volatile* dest, int value)
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{
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return __sync_lock_test_and_set(dest, value);
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline int
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OSXInterlocked::CompareExchange(int volatile* dest, int exchange, int comparand)
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{
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return __sync_val_compare_and_swap(dest, comparand, exchange);
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}
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} // namespace OSX
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//------------------------------------------------------------------------------
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