source: trunk/synergy/lib/server/CClientProxy1_3.cpp

/*
 * synergy -- mouse and keyboard sharing utility
 * Copyright (C) 2006 Chris Schoeneman
 * 
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file COPYING that should have accompanied this file.
 * 
 * This package is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include "CClientProxy1_3.h"
#include "CProtocolUtil.h"
#include "CLog.h"
#include "IEventQueue.h"
#include "TMethodEventJob.h"

//
// CClientProxy1_3
//

CClientProxy1_3::CClientProxy1_3(const CString& name, IStream* stream) :
        CClientProxy1_2(name, stream),
        m_keepAliveRate(kKeepAliveRate),
        m_keepAliveTimer(NULL)
{
        setHeartbeatRate(kKeepAliveRate, kKeepAliveRate * kKeepAlivesUntilDeath);
}

CClientProxy1_3::~CClientProxy1_3()
{
        // cannot do this in superclass or our override wouldn't get called
        removeHeartbeatTimer();
}

void
CClientProxy1_3::mouseWheel(SInt32 xDelta, SInt32 yDelta)
{
        LOG((CLOG_DEBUG2 "send mouse wheel to \"%s\" %+d,%+d", getName().c_str(), xDelta, yDelta));
        CProtocolUtil::writef(getStream(), kMsgDMouseWheel, xDelta, yDelta);
}

bool
CClientProxy1_3::parseMessage(const UInt8* code)
{
        // process message
        if (memcmp(code, kMsgCKeepAlive, 4) == 0) {
                // reset alarm
                resetHeartbeatTimer();
                return true;
        }
        else {
                return CClientProxy1_2::parseMessage(code);
        }
}

void
CClientProxy1_3::resetHeartbeatRate()
{
        setHeartbeatRate(kKeepAliveRate, kKeepAliveRate * kKeepAlivesUntilDeath);
}

void
CClientProxy1_3::setHeartbeatRate(double rate, double)
{
        m_keepAliveRate = rate;
        CClientProxy1_2::setHeartbeatRate(rate, rate * kKeepAlivesUntilDeath);
}

void
CClientProxy1_3::resetHeartbeatTimer()
{
        // reset the alarm but not the keep alive timer
        CClientProxy1_2::removeHeartbeatTimer();
        CClientProxy1_2::addHeartbeatTimer();
}

void
CClientProxy1_3::addHeartbeatTimer()
{
        // create and install a timer to periodically send keep alives
        if (m_keepAliveRate > 0.0) {
                m_keepAliveTimer = EVENTQUEUE->newTimer(m_keepAliveRate, NULL);
                EVENTQUEUE->adoptHandler(CEvent::kTimer, m_keepAliveTimer,
                                                        new TMethodEventJob<CClientProxy1_3>(this,
                                                                &CClientProxy1_3::handleKeepAlive, NULL));
        }

        // superclass does the alarm
        CClientProxy1_2::addHeartbeatTimer();
}

void
CClientProxy1_3::removeHeartbeatTimer()
{
        // remove the timer that sends keep alives periodically
        if (m_keepAliveTimer != NULL) {
                EVENTQUEUE->removeHandler(CEvent::kTimer, m_keepAliveTimer);
                EVENTQUEUE->deleteTimer(m_keepAliveTimer);
                m_keepAliveTimer = NULL;
        }

        // superclass does the alarm
        CClientProxy1_2::removeHeartbeatTimer();
}

void
CClientProxy1_3::handleKeepAlive(const CEvent&, void*)
{
        CProtocolUtil::writef(getStream(), kMsgCKeepAlive);
}