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/* libs/graphics/ports/SkThread_none.cpp
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <windows.h>
#include "SkThread.h"
int32_t sk_atomic_inc(int32_t* addr)
{
// InterlockedIncrement returns the new value, we want to return the old.
return InterlockedIncrement(reinterpret_cast<LONG*>(addr)) - 1;
}
int32_t sk_atomic_dec(int32_t* addr)
{
return InterlockedDecrement(reinterpret_cast<LONG*>(addr)) + 1;
}
SkMutex::SkMutex(bool /* isGlobal */)
{
SK_COMPILE_ASSERT(sizeof(fStorage) > sizeof(CRITICAL_SECTION),
NotEnoughSizeForCriticalSection);
InitializeCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage));
}
SkMutex::~SkMutex()
{
DeleteCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage));
}
void SkMutex::acquire()
{
EnterCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage));
}
void SkMutex::release()
{
LeaveCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage));
}
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