private void TryRead(IAsyncResult ar)
{
try
{
ReadCompleted?.Invoke(this, new TcpCompletedEventArgs(Socket.EndReceive(ar)));
}
catch (Exception ex) {
var eventArgs = new TcpCompletedEventArgs(ex);
eventArgs.Error = true;
ReadCompleted?.Invoke(this, eventArgs);
}
}
private void TryConnect(IAsyncResult ar)
{
try
{
Socket.EndConnect(ar);
ConnectCompleted?.Invoke(this, new TcpCompletedEventArgs(ar.AsyncState));
}
catch (Exception ex)
{
var eventArgs = new TcpCompletedEventArgs(ex);
eventArgs.Error = true;
ConnectCompleted?.Invoke(this, eventArgs);
}
}
private void TryShutdown(IAsyncResult ar)
{
try
{
Socket.EndDisconnect(ar);
ShutdownCompleted?.Invoke(this, new TcpCompletedEventArgs());
}
catch (Exception ex)
{
var eventArgs = new TcpCompletedEventArgs(ex);
eventArgs.Error = true;
ShutdownCompleted?.Invoke(this, eventArgs);
}
}
private void Socket_ShutdownCompleted(object sender, TcpCompletedEventArgs e)
{
ShutdownCompleted?.Invoke(sender, e);
}
private void Socket_ReadCompleted(object sender, TcpCompletedEventArgs e)
{
ReadCompleted?.Invoke(sender, e);
}
private void Socket__ConnectCompleted(object sender, TcpCompletedEventArgs e)
{
ConnectCompleted?.Invoke(sender, e);
}
private void Socket_ReadCompleted(object sender, TcpCompletedEventArgs e)
{
if (!e.Error)
{
bytesReceived += (int)e.Data;
if ((int)e.Data == 0)
{
PacketArrived?.Invoke(Socket, new TcpCompletedEventArgs());
return;
}
if (dataBuffer == null)
{
if (bytesReceived != sizeof(int))
{
ReadLoop();
}
else
{
int len = BitConverter.ToInt32(lenghtBuffer, 0);
if (len < 0)
{
PacketArrived?.Invoke(Socket,
new TcpCompletedEventArgs {
Data = new System.IO.InvalidDataException(
"Packet length less than zero (corrupted message)"),
Error = true
});
return;
}
// Keepalive packet
if (len == 0)
{
bytesReceived = 0;
ReadLoop();
}
else
{
dataBuffer = new byte[len];
bytesReceived = 0;
ReadLoop();
}
}
}
else
{
if (bytesReceived != dataBuffer.Length)
{
// Keep reading data
ReadLoop();
}
else
{
PacketArrived?.Invoke(Socket, new TcpCompletedEventArgs(dataBuffer));
dataBuffer = null;
bytesReceived = 0;
ReadLoop();
}
}
}
else
{
PacketArrived?.Invoke(Socket, e);
}
}
