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/** @file
*
* VirtualBox additions client application: thread class.
*/
/*
* Copyright (C) 2006-2011 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#include <VBox/log.h>
#include "thread.h"
/** Stop the thread using its stop method and get the exit value. */
int VBoxGuestThread::stop(RTMSINTERVAL cMillies, int *prc)
{
int rc = VINF_SUCCESS;
LogRelFlowFunc(("\n"));
if (NIL_RTTHREAD == mSelf) /* Assertion */
{
LogRelThisFunc(("Attempted to stop thread %s which is not running!\n", mName));
return VERR_INTERNAL_ERROR;
}
mExit = true;
mFunction->stop();
if (0 != (mFlags & RTTHREADFLAGS_WAITABLE))
{
rc = RTThreadWait(mSelf, cMillies, prc);
if (RT_SUCCESS(rc))
{
mSelf = NIL_RTTHREAD;
}
else
{
LogRelThisFunc(("Failed to stop thread %s!\n", mName));
}
}
LogRelFlowFunc(("returning %Rrc\n", rc));
return rc;
}
/** Destroy the class, stopping the thread if necessary. */
VBoxGuestThread::~VBoxGuestThread(void)
{
LogRelFlowFunc(("\n"));
if (NIL_RTTHREAD != mSelf)
{
LogRelThisFunc(("Warning! Stopping thread %s, as it is still running!\n", mName));
stop(2000, 0);
}
LogRelFlowFunc(("returning\n"));
}
/** Start the thread. */
int VBoxGuestThread::start(void)
{
int rc = VINF_SUCCESS;
LogRelFlowFunc(("returning\n"));
if (NIL_RTTHREAD != mSelf) /* Assertion */
{
LogRelThisFunc(("Attempted to start thread %s twice!\n", mName));
return VERR_INTERNAL_ERROR;
}
mExit = false;
rc = RTThreadCreate(&mSelf, threadFunction, reinterpret_cast<void *>(this),
mStack, mType, mFlags, mName);
LogRelFlowFunc(("returning %Rrc\n", rc));
return rc;
}
/** Yield the CPU */
bool VBoxGuestThread::yield(void)
{
return RTThreadYield();
}
/** The "real" thread function for the VBox runtime. */
int VBoxGuestThread::threadFunction(RTTHREAD self, void *pvUser)
{
int rc = VINF_SUCCESS;
LogRelFlowFunc(("\n"));
PSELF pSelf = reinterpret_cast<PSELF>(pvUser);
pSelf->mRunning = true;
rc = pSelf->mFunction->threadFunction(pSelf);
pSelf->mRunning = false;
LogRelFlowFunc(("returning %Rrc\n", rc));
return rc;
}
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