// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
// Name : sem_microsleepwait_np.cpp
// Part of : PThread library
// sem_microsleepwait_np call is implemented.
// Version:
//
#include <e32def.h>
#include <errno.h>
#include "semaphore.h"
#include "semaphoretypes.h"
#include "pthread.h"
int sem_microsleepwait_np (sem_t* sem, const long aSleepTime)
{
if (!sem || !(*sem) )
{
errno = EINVAL;
return -1;
}
_sem_t* lsem = *sem;
if(lsem->iState != _sem_t::EInitialized)
{
errno = EINVAL;
return -1;
}
if(_cancelable_mutex_wait(lsem) != 0)
{
return -1;
}
int count = --(lsem->iCount);
lsem->iMutex.Signal();
int retval = 0;
if(count <0)
{
//push to cleanup
retval = lsem->iSemaphore.Wait(aSleepTime);
if(retval != KErrNone)
{
//timeout
//the semaphore count goes up
lsem->iMutex.Wait();
if(lsem->iState != _sem_t::EInitialized)
{
errno = EINVAL;
return -1;
}
++(lsem->iCount);
lsem->iMutex.Signal();
errno = ETIMEDOUT;
return -1;
}
//pop from cleanup
}
return 0;
}//sem_microsleepwait_np()
//End of File