79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
/***
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Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: LSSemaphore.NT.cpp
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Date: 2021-10-1
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Author: Reece
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***/
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#include <Source/RuntimeInternal.hpp>
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#include "LSSemaphore.hpp"
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namespace Aurora::IO::Loop
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{
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LSSemaphore::LSSemaphore()
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{}
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LSSemaphore::LSSemaphore(HANDLE handle) : LSHandle(AuReinterpretCast<AuUInt>(handle))
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{}
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LSSemaphore::~LSSemaphore()
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{
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auto handle = AuReinterpretCast<HANDLE>(this->handle);
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AuWin32CloseHandle(handle);
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this->handle = kInvalidHandle;
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}
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bool LSSemaphore::AddOne()
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{
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LONG atomicOld;
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return ::ReleaseSemaphore(AuReinterpretCast<HANDLE>(handle), 1, &atomicOld);
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}
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bool LSSemaphore::AddMany(AuUInt32 uCount)
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{
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LONG atomicOld;
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return ::ReleaseSemaphore(AuReinterpretCast<HANDLE>(handle), uCount, &atomicOld);
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}
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bool LSSemaphore::IsSignaled()
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{
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return LSHandle::IsSignaled();
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}
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bool LSSemaphore::WaitOn(AuUInt32 timeout)
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{
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return LSHandle::WaitOn(timeout);
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}
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ELoopSource LSSemaphore::GetType()
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{
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return ELoopSource::eSourceSemaphore;
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}
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bool LSSemaphore::TryInit(AuUInt32 initialCount)
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{
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auto semaphore = ::CreateSemaphoreA(NULL, initialCount, /*AuNumericLimits<LONG>::max()*/ LONG_MAX, NULL);
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if (!semaphore)
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{
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SysPushErrorGen("Out of OS resources?");
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return {};
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}
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this->handle = (AuUInt)semaphore;
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return true;
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}
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AUKN_SYM AuSPtr<ILSSemaphore> NewLSSemaphoreSlow(AuUInt32 initialCount)
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{
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AuSPtr<LSSemaphore> ret;
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auto semaphore = ::CreateSemaphoreA(NULL, initialCount, /*AuNumericLimits<LONG>::max()*/ LONG_MAX, NULL);
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if (!semaphore)
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{
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SysPushErrorGen("Out of OS resources?");
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return {};
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}
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return AuMakeShared<LSSemaphore>(semaphore);
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}
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} |