/// <summary>
/// trigger for the registered {@code MSRPSessionListener} callback.
/// </summary>
/// <param name="session"></param>
/// <param name="outgoingMessage"></param>
public void TriggerUpdateSendStatus(Session session, OutgoingMessage outgoingMessage)
{
_logger.Debug("Called the triggerUpdateSendStatus hook");
_myListener.UpdateSendStatus(session, outgoingMessage, outgoingMessage.SentBytes);
}
/// <summary>
/// Method used by the connection object to retrieve a byte array of data
/// to be sent by the connection.
///
/// 3 mechanisms are active here:
/// - 1 piggyback multiple transactions to send into the byte array.
/// - 2 split large data over multiple byte-array blocks
/// - 3 interrupt transactions that contain endline-data in the content
/// (and split into multiple transactions, using the validator).
///
/// It is also at this level that the sending of bytes is accounted for
/// purposes of triggering the sendUpdateStatus and the prioritiser
/// </summary>
/// <param name="outData">the byte array to fill with data to be sent</param>
/// <returns>the number of bytes filled on outData</returns>
public int GetDataToSend(byte[] outData)
{
int byteCounter = 0;
//Variable that accounts the number of bytes per transaction sent
int bytesToAccount = 0;
lock (_transactionsToSendLock)
{
while (byteCounter < outData.Length && HasDataToSend)
{
Transaction t = _transactionsToSend[0];
_outgoingDataValidator.Init(t.TransactionId);
bool stopTransmission = false;
while (byteCounter < outData.Length && !stopTransmission)
{
if (t.HasData)
{
// if we are still transmitting data
int result = t.GetData(outData, byteCounter);
byteCounter += result;
bytesToAccount += result;
}
else
{
// Let's check to see if we should transmit the end of line
if (t.HasEndLine)
{
/*
* the first time we get here we should check if the
* end-line was found, and if it was we should rewind,
* interrupt the transaction and set the bytesToAccount
* back the appropriate positions and also the index i
* we can also do the reset of the outgoingDataValidator
* because we have for certain that the end-line won't
* appear again on the content before the transaction
* finishes
*/
_outgoingDataValidator.Parse(outData, byteCounter);
_outgoingDataValidator.Reset();
if (_outgoingDataValidator.DataHasEndLine)
{
int rewindAmount = _outgoingDataValidator.Amount2Rewind();
t.Rewind(rewindAmount);
t.Interrupt();
byteCounter -= rewindAmount;
bytesToAccount -= rewindAmount;
continue;
}
int nrBytes = t.GetEndLine(outData, byteCounter);
byteCounter += nrBytes;
bytesToAccount += nrBytes;
}
else
{
// Removing the given transaction from the queue of
// transactions to send
RemoveTransactionToSend(t);
// we should also reset the outgoingDataValidator, so
// that future calls to the parser won't misjudge the
//correct end-line as an end-line on the body content.
_outgoingDataValidator.Reset();
stopTransmission = true; // let's get the next transaction if any
}
}
}// end of transaction while
stopTransmission = false;
/*
* the buffer is full and or the transaction has been removed from
* the list of transactions to send and if that was the case the
* outgoingValidator won't make a false positive because it has been
* reset
*/
_outgoingDataValidator.Parse(outData, byteCounter);
if (_outgoingDataValidator.DataHasEndLine)
{
int rewindAmount = _outgoingDataValidator.Amount2Rewind();
t.Rewind(rewindAmount);
t.Interrupt();
byteCounter -= rewindAmount;
bytesToAccount -= rewindAmount;
int nrBytes = t.GetEndLine(outData, byteCounter);
byteCounter += nrBytes;
bytesToAccount += nrBytes;
RemoveTransactionToSend(t);
_outgoingDataValidator.Reset();
}
// account for the bytes sent from this transaction if they should
// be accounted for
if (!t.IsIncomingResponse && t.TransactionType == TransactionType.SEND && !t.HasResponse)
{
// reporting the sent update status seen that this is an
// outgoing send request
OutgoingMessage transactionMessage = (OutgoingMessage)t.Message;
if (transactionMessage != null)
{
transactionMessage.ReportMechanism.CountSentBodyBytes(transactionMessage, bytesToAccount);
bytesToAccount = 0;
}
}
}// end of main while, the one that goes across transactions
}
return(byteCounter);
}
