/*
* ReceiveHandling
* This method is responssible to devide the data received to packets and call
* the ReceiveHandling method of the process
* Note that there no connection from the way the data is sent to the way it is
* Received. That meens that a several packets can be received in one Receive and
* There is no garentee that the last packet in the data will end.
* The packets (messages) are send with '#' termination flag
* The received data is collected in state.buffer
* Then it is copied to state.sb . The role of this variable is to hold all the
* data that was not processed
* Then it converted to string
* Then it is devided to packets
* Then each packet except the last packet is handled
* Then the last packet is checked :
* If the data received ends with '#' - do nothing because that meens that the last
* packet is empty
* else clear the state.data and fill it with the unterminated last packet to be joined
* by the next receive data
* The following is the handling of a complete packet
* 1. Generate a message object from the message data
* 2. If the MessageType attribute of the message is "Terminate" set the termnateFlag and return
* 3. wait untill the ReceiveHandling method of the process is not locked by another
* AsynchronousReader object
* 4. Activate the ReceiveHandling method of the process with the data.
*/
/**********************************************************************************************//**
* Receive handling.
*
* \author Ilan Hindy
* \date 29/09/2016
*
* \param bytesReceived The bytes received.
*
**************************************************************************************************/
public void ReceiveHandling(int bytesReceived)
{
String content = String.Empty;
// There might be more data, so store the data received so far.
state.sb.Append(Encoding.ASCII.GetString(
state.buffer, 0, bytesReceived));
//Convert the data to string
content = state.sb.ToString();
// Get the process
BaseProcess process = state.process;
//If any end of packets was received
if (content.IndexOf("#") > -1)
{
//Devide the data to packets
string[] packets = Regex.Split(content, "#");
//Packet handling
for (int idx = 0; idx < packets.Length - 1; idx++)
{
//Create message from the packet
//BaseMessage message = new BaseMessage(packets[idx]);
string processName = "Process_" + process.ea[ne.eak.Id].ToString();
Logger.Log(Logger.LogMode.MainLogAndProcessLog, processName, "Receive", "Received message - packets[idx]", packets[idx], "ProcessReceive");
BaseMessage message = BaseMessage.CreateMessage(process.Network, packets[idx]);
if (TypesUtility.CompareDynamics(message.GetHeaderField(bm.pak.MessageType), bm.MessageTypes.Terminate))
{
terminateFlag = true;
}
process.MessageQHandling(ref message, MessageQOperation.AddMessage);
MessageRouter.ReportMessageReceive(process, new object[] { message });
//Logger.Log(Logger.LogMode.MainLogAndProcessLog, process.ToString(), "Receive", "Received message", message);
}
//If there is a unfinished packet
if (content[content.Length - 1] != '#')
{
//This is the last packet received and it is fregmented with the next package
state.sb.Clear();
state.sb.Append(packets[packets.Length - 1]);
}
else
{
state.sb.Clear();
}
}
}
