internal CRNode m_pRNode; // node information for UDT list used in rcv queue
#endregion
#region constructor and desctructor
CUDT(CUDT ancestor)
{
m_pSndBuffer = null;
m_pRcvBuffer = null;
m_pSndLossList = null;
m_pRcvLossList = null;
m_pACKWindow = null;
m_pSndTimeWindow = null;
m_pRcvTimeWindow = null;
m_pSndQueue = null;
m_pRcvQueue = null;
m_pPeerAddr = null;
m_pSNode = null;
m_pRNode = null;
// Initilize mutex and condition variables
initSynch();
// Default UDT configurations
m_iMSS = ancestor.m_iMSS;
m_bSynSending = ancestor.m_bSynSending;
m_bSynRecving = ancestor.m_bSynRecving;
m_iFlightFlagSize = ancestor.m_iFlightFlagSize;
m_iSndBufSize = ancestor.m_iSndBufSize;
m_iRcvBufSize = ancestor.m_iRcvBufSize;
m_Linger = ancestor.m_Linger;
m_iUDPSndBufSize = ancestor.m_iUDPSndBufSize;
m_iUDPRcvBufSize = ancestor.m_iUDPRcvBufSize;
m_iSockType = ancestor.m_iSockType;
m_iIPversion = ancestor.m_iIPversion;
m_bRendezvous = ancestor.m_bRendezvous;
m_iSndTimeOut = ancestor.m_iSndTimeOut;
m_iRcvTimeOut = ancestor.m_iRcvTimeOut;
m_bReuseAddr = true; // this must be true, because all accepted sockets shared the same port with the listener
m_llMaxBW = ancestor.m_llMaxBW;
m_pCCFactory = ancestor.m_pCCFactory.clone();
m_pCC = null;
m_pCache = ancestor.m_pCache;
// Initial status
m_bOpened = false;
m_bListening = false;
m_bConnected = false;
m_bClosing = false;
m_bShutdown = false;
m_bBroken = false;
}
internal CUDT()
{
// Initilize mutex and condition variables
initSynch();
// Default UDT configurations
m_iMSS = 1500;
m_bSynSending = true;
m_bSynRecving = true;
m_iFlightFlagSize = 25600;
m_iSndBufSize = 8192;
m_iRcvBufSize = 8192; //Rcv buffer MUST NOT be bigger than Flight Flag size
m_Linger = new LingerOption(1, 180);
//m_Linger.l_onoff = 1;
//m_Linger.l_linger = 180;
m_iUDPSndBufSize = 65536;
m_iUDPRcvBufSize = m_iRcvBufSize * m_iMSS;
m_iIPversion = AF_INET;
m_bRendezvous = false;
m_iSndTimeOut = -1;
m_iRcvTimeOut = -1;
m_bReuseAddr = true;
m_llMaxBW = -1;
m_pCCFactory = new CCCFactory<CUDTCC>();
m_pCC = null;
m_pCache = null;
// Initial status
m_bOpened = false;
m_bListening = false;
m_bConnected = false;
m_bClosing = false;
m_bShutdown = false;
m_bBroken = false;
}
// Functionality:
// Configure UDT options.
// Parameters:
// 0) [in] optName: The enum name of a UDT option.
// 1) [in] optval: The value to be set.
// 2) [in] optlen: size of "optval".
// Returned value:
// None.
void setOpt(UDTOpt optName, Object optval, int optlen)
{
CGuard cg = new CGuard(m_ConnectionLock);
CGuard sendguard = new CGuard(m_SendLock);
CGuard recvguard = new CGuard(m_RecvLock);
switch (optName)
{
case UDTOpt.UDT_MSS:
if (m_bOpened)
throw new CUDTException(5, 1, 0);
if ((int)optval < (int)(28 + sizeof(CHandShake)))
throw new CUDTException(5, 3, 0);
m_iMSS = (int)optval;
// Packet size cannot be greater than UDP buffer size
if (m_iMSS > m_iUDPSndBufSize)
m_iMSS = m_iUDPSndBufSize;
if (m_iMSS > m_iUDPRcvBufSize)
m_iMSS = m_iUDPRcvBufSize;
break;
case UDTOpt.UDT_SNDSYN:
m_bSynSending = (bool)optval;
break;
case UDTOpt.UDT_RCVSYN:
m_bSynRecving = (bool)optval;
break;
case UDTOpt.UDT_CC:
if (m_bConnected)
throw new CUDTException(5, 1, 0);
//if (null != m_pCCFactory)
// delete m_pCCFactory;
m_pCCFactory = ((CCCVirtualFactory )optval).clone();
break;
case UDTOpt.UDT_FC:
if (m_bConnected)
throw new CUDTException(5, 2, 0);
if (*(int*)optval < 1)
throw new CUDTException(5, 3);
// Mimimum recv flight flag size is 32 packets
if (*(int*)optval > 32)
m_iFlightFlagSize = *(int*)optval;
else
m_iFlightFlagSize = 32;
break;
case UDTOpt.UDT_SNDBUF:
if (m_bOpened)
throw new CUDTException(5, 1, 0);
if (*(int*)optval <= 0)
throw new CUDTException(5, 3, 0);
m_iSndBufSize = *(int*)optval / (m_iMSS - 28);
break;
case UDTOpt.UDT_RCVBUF:
if (m_bOpened)
throw new CUDTException(5, 1, 0);
if (*(int*)optval <= 0)
throw new CUDTException(5, 3, 0);
// Mimimum recv buffer size is 32 packets
if (*(int*)optval > (m_iMSS - 28) * 32)
m_iRcvBufSize = *(int*)optval / (m_iMSS - 28);
else
m_iRcvBufSize = 32;
// recv buffer MUST not be greater than FC size
if (m_iRcvBufSize > m_iFlightFlagSize)
m_iRcvBufSize = m_iFlightFlagSize;
break;
case UDTOpt.UDT_LINGER:
m_Linger = *(linger*)optval;
break;
case UDTOpt.UDP_SNDBUF:
if (m_bOpened)
throw new CUDTException(5, 1, 0);
m_iUDPSndBufSize = *(int*)optval;
if (m_iUDPSndBufSize < m_iMSS)
m_iUDPSndBufSize = m_iMSS;
break;
case UDTOpt.UDP_RCVBUF:
if (m_bOpened)
throw new CUDTException(5, 1, 0);
m_iUDPRcvBufSize = *(int*)optval;
if (m_iUDPRcvBufSize < m_iMSS)
m_iUDPRcvBufSize = m_iMSS;
break;
case UDTOpt.UDT_RENDEZVOUS:
if (m_bConnected)
throw new CUDTException(5, 1, 0);
m_bRendezvous = *(bool *)optval;
break;
case UDTOpt.UDT_SNDTIMEO:
m_iSndTimeOut = *(int*)optval;
break;
case UDTOpt.UDT_RCVTIMEO:
m_iRcvTimeOut = *(int*)optval;
break;
case UDTOpt.UDT_REUSEADDR:
if (m_bOpened)
throw new CUDTException(5, 1, 0);
m_bReuseAddr = *(bool*)optval;
break;
case UDTOpt.UDT_MAXBW:
if (m_bConnected)
throw new CUDTException(5, 1, 0);
m_llMaxBW = *(Int64*)optval;
break;
default:
throw new CUDTException(5, 0, 0);
}
}
