protected void receiveCallback(IAsyncResult ar)
{
var socket = (Socket)ar.AsyncState;
Int32 receivedBytes = 0;
try
{
receivedBytes = helper.EndReceive(ar, socket);
}
catch (SocketException)
{
OnDisconnected(instanceNodeId);
return;
}
catch (ObjectDisposedException)
{
return;
}
if (receivedBytes == 0)
{
return;
}
OnReceivedData(this, buffer);
// throttle the connection cycle
System.Threading.Thread.Sleep(500);
Byte[] outgoing = null;
lock (sendQueueLock)
{
outgoing = sendQueue.ToArray();
sendQueue.Clear();
}
// send a response
try
{
helper.BeginSend(outgoing, new AsyncCallback(sendCallback), socket);
}
catch (SocketException)
{
// socket has become diconnected.
OnDisconnected(instanceNodeId);
}
catch (ObjectDisposedException)
{
// socket/thread is being shut down. (no need to log this)
}
}
protected void receiveCallback(IAsyncResult ar)
{
var socket = (Socket)ar.AsyncState;
Int32 receivedBytes = 0;
try
{
receivedBytes = helper.EndReceive(ar, socket);
}
catch (SocketException)
{
// socket has become diconnected.
OnDisconnected(instanceNodeId);
}
catch (ObjectDisposedException)
{
// socket/thread is being shut down.
return;
}
// if nothing was received, the socket either closed, or some other problem, so return.
if (receivedBytes == 0)
{
return;
}
OnReceivedData(this, buffer);
// lock the send queue, build a byte array of the data and clear the queue.
Byte[] outgoing = null;
lock (sendQueueLock)
{
outgoing = sendQueue.ToArray();
sendQueue.Clear();
}
// send a response
try
{
helper.BeginSend(outgoing, new AsyncCallback(sendCallback), socket);
}
catch (SocketException)
{
// socket has become diconnected.
OnDisconnected(instanceNodeId);
}
catch (ObjectDisposedException)
{
// socket/thread is being shut down. (no need to log this)
}
}