public BridgeConnection()
{
writeTasks = new Queue <Task>();
currentReadMessege = null;
currentWritingMessege = null;
//These "macros" are to pick and choose what code to compile depending on the compiler flags.
//This prevents external .NET 4.0 specific code from getting into the internal mod
#if EXTERNAL_SCRIPT
communicationBuffer = new ExternalCommunicationBuffer();
#else
communicationBuffer = new InternalCommunicationBuffer();
#endif
}
/**
* This performs 2 operations and MUST be called often.
*
* READ:
* - Read off the bytes in the read section and see if there is anything to be done. If there is, just DO IT
*
* Write
* - If there is something to be written to the buffer, and the write section is free, then write the packet
*/
public void update()
{
BufferReadSection readSection = communicationBuffer.read();
if (readSection != null)
{
if (currentReadMessege == null)
{
currentReadMessege = new Messege(readSection.opcode, readSection.messegeLength);
}
// Accumalate the bytes into the messege
currentReadMessege.recv(readSection.packetData);
// When the messsege is all recieved, hand it off to the task
if (currentReadMessege.isMessegeComplete())
{
Type taskType = Opcodes.getType(currentReadMessege.opcode);
//Creat an instance of the task with the empty constructor
Task t = (Task)Activator.CreateInstance(taskType);
#if INTERNAL_SCRIPT
StyledNotification.Show(new StyledNotification.Format("Object type: " + t.GetType().Name + ", opcode: " + currentReadMessege.opcode + ", messegeL: " + currentReadMessege.messegeLength + ", OP Name: " + taskType.Name, StyledNotification.NotificationStyle.kSystemMessage));
#endif
//Depending on what side this connection is on, cast the task to the corresponding interface to read the data
#if INTERNAL_SCRIPT
((ISendToInternal)t).onRead(currentReadMessege.data);
#else
((ISendToExternal)t).onRead(currentReadMessege.data);
#endif
currentReadMessege = null;
}
}
if (currentWritingMessege == null && writeTasks.Count > 0)
{
Task t = writeTasks.Dequeue();
byte[] data;
//Cast the task to the correct interface and generate the data to be sent
#if INTERNAL_SCRIPT
data = ((ISendToExternal)t).generateData();
#else
data = ((ISendToInternal)t).generateData();
#endif
currentWritingMessege = new Messege(Opcodes.getOpcode(t.GetType()), data);
}
if (communicationBuffer.canWrite() && currentWritingMessege != null)
{
int startIndex = currentWritingMessege.getByteProgress();
byte[] data = currentWritingMessege.nextPacketData();
communicationBuffer.write(currentWritingMessege.opcode, currentWritingMessege.messegeLength, startIndex, data);
if (currentWritingMessege.isMessegeComplete())
{
currentWritingMessege = null;
}
}
}
