bool WiimotePipeServerWrapper::sendWiimoteData(WiimoteData *wiimoteData1,WiimoteData *wiimoteData2,int sequenceNumber,DWORD current_time)
{
if(m_CommandPipeServer->isWiimoteLoggingOn())
{
//If is false it indicates that logging was currently off. In that scenario when m_CommandPipeServer->isWiimoteLoggingOn() changes to true
//it indicates logging request just came in. So need to initialize
//For this case return right away and do not send packet as this packet is not initialized by the client.
//The clietnt did not know before sending this message that recording was restarted
if(!m_WiimoteLoggingOn)
{
startLogging(wiimoteData1,wiimoteData2);
return true;
}
else
sendDataPacket(wiimoteData1,wiimoteData2,sequenceNumber,current_time,false);
}
else
{
if(m_WiimoteLoggingOn)
{
stopLogging();
return WIIMOTE_LOGGING_STOPPED;
}
}
logWiimoteData(wiimoteData1,wiimoteData2,sequenceNumber,current_time);
return false;
}
void WiimotePipeServerWrapper::stopLogging()
{
m_WiimoteLoggingOn = false;
sendDataPacket(NULL,NULL,NULL,NULL,true);
closeLoggingFile();
}
/******************************************************************************
* retransmit
*
* Operation:
* To perform retransmition of missing packet
*
* Input:
* cwnd->size and cwnd->ssthresh
*
* Return:
* no return
******************************************************************************/
void retransmit(TCPSession *session, Packet *packet){
uint32_t newFlightSize;
sessionCWND->flightSize = session->offset - sessionCWND->offset;
newFlightSize = roundOffValue(sessionCWND->flightSize);
sessionCWND->ssthresh = max(newFlightSize/2, 2*SMSS);
sessionCWND->lostPacket = sessionCWND->lostPacket+SMSS;
sendDataPacket(packet,&sessionState->ptrBlock,sessionCWND->lostPacket);
sessionCWND->size = sessionCWND->ssthresh + 3*SMSS;
sessionCWND->recover = sessionCWND->size+sessionCWND->offset;
}
/******************************************************************************
* send Packet
*
* Operation:
* To perform send Packet
*
* Input:
* TCPSession,Packet and availableSize
*
* Return:
* no return
******************************************************************************/
void sendPacket(TCPSession *session, Packet *packet, uint32_t availableSize){
availableSize = session->offset + availableSize;
sendDataPacket(packet,&sessionState->ptrBlock,availableSize);
session->offset = session->offset + SMSS;
}
