mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-01-20 20:54:46 +00:00
76 lines
2.5 KiB
C++
76 lines
2.5 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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#include "platformWin32/platformWin32.h"
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#include "platform/threads/semaphore.h"
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class PlatformSemaphore
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{
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public:
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HANDLE *semaphore;
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PlatformSemaphore(S32 initialCount)
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{
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semaphore = new HANDLE;
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*semaphore = CreateSemaphore(0, initialCount, S32_MAX, 0);
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}
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~PlatformSemaphore()
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{
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CloseHandle(*(HANDLE*)(semaphore));
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delete semaphore;
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semaphore = NULL;
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}
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};
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Semaphore::Semaphore(S32 initialCount)
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{
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mData = new PlatformSemaphore(initialCount);
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}
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Semaphore::~Semaphore()
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{
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AssertFatal(mData && mData->semaphore, "Semaphore::destroySemaphore: invalid semaphore");
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delete mData;
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}
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bool Semaphore::acquire(bool block, S32 timeoutMS)
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{
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AssertFatal(mData && mData->semaphore, "Semaphore::acquireSemaphore: invalid semaphore");
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if(block)
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{
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WaitForSingleObject(*(HANDLE*)(mData->semaphore), timeoutMS != -1 ? timeoutMS : INFINITE );
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return(true);
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}
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else
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{
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DWORD result = WaitForSingleObject(*(HANDLE*)(mData->semaphore), 0);
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return(result == WAIT_OBJECT_0);
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}
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}
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void Semaphore::release()
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{
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AssertFatal(mData && mData->semaphore, "Semaphore::releaseSemaphore: invalid semaphore");
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ReleaseSemaphore(*(HANDLE*)(mData->semaphore), 1, 0);
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}
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