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/** @file
*
* Guest client: seamless mode.
*/
/*
* 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.
*/
#ifndef __Additions_xclient_seamless_h
# define __Additions_xclient_seamless_h
#include <VBox/log.h>
#include "seamless-host.h"
#include "seamless-guest.h"
#include "seamless-glue.h"
/** Thread function class for VBoxGuestSeamlessGuest. */
class VBoxGuestSeamlessGuestThread: public VBoxGuestThreadFunction
{
private:
/** The guest class "owning" us. */
VBoxGuestSeamlessGuestImpl *mGuest;
/** The guest observer monitoring the guest. */
VBoxGuestSeamlessObserver *mObserver;
/** Should we exit the thread? */
bool mExit;
// Copying or assigning a thread object is not sensible
VBoxGuestSeamlessGuestThread(const VBoxGuestSeamlessGuestThread&);
VBoxGuestSeamlessGuestThread& operator=(const VBoxGuestSeamlessGuestThread&);
public:
VBoxGuestSeamlessGuestThread(VBoxGuestSeamlessGuestImpl *pGuest,
VBoxGuestSeamlessObserver *pObserver)
{ mGuest = pGuest; mObserver = pObserver; mExit = false; }
virtual ~VBoxGuestSeamlessGuestThread(void) {}
/**
* The actual thread function.
*
* @returns iprt status code as thread return value
* @param pParent the VBoxGuestThread running this thread function
*/
virtual int threadFunction(VBoxGuestThread *pThread)
{
int rc = VINF_SUCCESS;
LogRelFlowFunc(("\n"));
rc = mGuest->start();
if (RT_SUCCESS(rc))
{
while (!pThread->isStopping())
{
mGuest->nextEvent();
}
mGuest->stop();
}
LogRelFlowFunc(("returning %Rrc\n", rc));
return rc;
}
/**
* Send a signal to the thread function that it should exit
*/
virtual void stop(void) { mGuest->interruptEvent(); }
};
/** Observer for the host class - start and stop seamless reporting in the guest when the
host requests. */
class VBoxGuestSeamlessHostObserver : public VBoxGuestSeamlessObserver
{
private:
VBoxGuestSeamlessHost *mHost;
VBoxGuestThread *mGuestThread;
public:
VBoxGuestSeamlessHostObserver(VBoxGuestSeamlessHost *pHost,
VBoxGuestThread *pGuestThread)
{
mHost = pHost;
mGuestThread = pGuestThread;
}
virtual void notify(void)
{
switch (mHost->getState())
{
case VBoxGuestSeamlessHost::ENABLE:
mGuestThread->start();
break;
case VBoxGuestSeamlessHost::DISABLE:
mGuestThread->stop(RT_INDEFINITE_WAIT, 0);
break;
default:
break;
}
}
};
/** Observer for the guest class - send the host updated seamless rectangle information when
it becomes available. */
class VBoxGuestSeamlessGuestObserver : public VBoxGuestSeamlessObserver
{
private:
VBoxGuestSeamlessHost *mHost;
VBoxGuestSeamlessGuestImpl *mGuest;
public:
VBoxGuestSeamlessGuestObserver(VBoxGuestSeamlessHost *pHost,
VBoxGuestSeamlessGuestImpl *pGuest)
{
mHost = pHost;
mGuest = pGuest;
}
virtual void notify(void)
{
mHost->updateRects(mGuest->getRects(), mGuest->getRectCount());
}
};
class VBoxGuestSeamless
{
private:
VBoxGuestSeamlessHost mHost;
VBoxGuestSeamlessGuestImpl mGuest;
VBoxGuestSeamlessGuestThread mGuestFunction;
VBoxGuestThread mGuestThread;
VBoxGuestSeamlessHostObserver mHostObs;
VBoxGuestSeamlessGuestObserver mGuestObs;
bool isInitialised;
public:
int init(void)
{
int rc = VINF_SUCCESS;
LogRelFlowFunc(("\n"));
if (isInitialised) /* Assertion */
{
LogRelFunc(("error: called a second time! (VBoxClient)\n"));
rc = VERR_INTERNAL_ERROR;
}
if (RT_SUCCESS(rc))
{
rc = mHost.init(&mHostObs);
}
if (RT_SUCCESS(rc))
{
rc = mGuest.init(&mGuestObs);
}
if (RT_SUCCESS(rc))
{
rc = mHost.start();
}
if (RT_SUCCESS(rc))
{
isInitialised = true;
}
if (RT_FAILURE(rc))
{
LogRelFunc(("returning %Rrc (VBoxClient)\n", rc));
}
LogRelFlowFunc(("returning %Rrc\n", rc));
return rc;
}
void uninit(RTMSINTERVAL cMillies = RT_INDEFINITE_WAIT)
{
LogRelFlowFunc(("\n"));
if (isInitialised)
{
mHost.stop(cMillies);
mGuestThread.stop(cMillies, 0);
mGuest.uninit();
isInitialised = false;
}
LogRelFlowFunc(("returning\n"));
}
VBoxGuestSeamless() : mGuestFunction(&mGuest, &mGuestObs),
mGuestThread(&mGuestFunction, 0, RTTHREADTYPE_MSG_PUMP,
RTTHREADFLAGS_WAITABLE, "Guest events"),
mHostObs(&mHost, &mGuestThread), mGuestObs(&mHost, &mGuest)
{
isInitialised = false;
}
~VBoxGuestSeamless() { uninit(); }
};
#endif /* __Additions_xclient_seamless_h not defined */
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