mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-01-20 20:54:46 +00:00
69 lines
2.5 KiB
C++
69 lines
2.5 KiB
C++
//-----------------------------------------------------------------------------
|
|
// Copyright (c) 2012 GarageGames, LLC
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to
|
|
// deal in the Software without restriction, including without limitation the
|
|
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
// sell copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
// IN THE SOFTWARE.
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include <CoreServices/CoreServices.h>
|
|
#include "platform/platform.h"
|
|
#include "platform/threads/semaphore.h"
|
|
|
|
class PlatformSemaphore
|
|
{
|
|
public:
|
|
MPSemaphoreID mSemaphore;
|
|
|
|
PlatformSemaphore(S32 initialCount)
|
|
{
|
|
OSStatus err = MPCreateSemaphore(S32_MAX - 1, initialCount, &mSemaphore);
|
|
AssertFatal(err == noErr, "Failed to allocate semaphore!");
|
|
}
|
|
|
|
~PlatformSemaphore()
|
|
{
|
|
OSStatus err = MPDeleteSemaphore(mSemaphore);
|
|
AssertFatal(err == noErr, "Failed to destroy semaphore!");
|
|
}
|
|
};
|
|
|
|
Semaphore::Semaphore(S32 initialCount)
|
|
{
|
|
mData = new PlatformSemaphore(initialCount);
|
|
}
|
|
|
|
Semaphore::~Semaphore()
|
|
{
|
|
AssertFatal(mData && mData->mSemaphore, "Semaphore::destroySemaphore: invalid semaphore");
|
|
delete mData;
|
|
}
|
|
|
|
bool Semaphore::acquire( bool block, S32 timeoutMS )
|
|
{
|
|
AssertFatal(mData && mData->mSemaphore, "Semaphore::acquireSemaphore: invalid semaphore");
|
|
OSStatus err = MPWaitOnSemaphore(mData->mSemaphore, block ? ( timeoutMS == -1 ? kDurationForever : timeoutMS ) : kDurationImmediate);
|
|
return(err == noErr);
|
|
}
|
|
|
|
void Semaphore::release()
|
|
{
|
|
AssertFatal(mData && mData->mSemaphore, "Semaphore::releaseSemaphore: invalid semaphore");
|
|
OSStatus err = MPSignalSemaphore(mData->mSemaphore);
|
|
AssertFatal(err == noErr, "Failed to release semaphore!");
|
|
}
|