// Called when BeginReceive completes
private static void ReceiveCallback(IAsyncResult ar)
{
TCPLineClient client = (TCPLineClient)ar.AsyncState;
try
{
// Retrieve the state object and the client socket
// from the asynchronous state object.
Socket socket = client.socket;
// Read data from the remote device.
int bytesRead = socket.EndReceive(ar);
if (bytesRead > 0)
{
// There might be more data, so store the data received so far.
client.inData.Append(Encoding.ASCII.GetString(client.recvBuffer, 0, bytesRead));
// Signal that all bytes have been received.
client.receiveInProgress = false;
client.newData = true;
}
else
{
client.Close();
}
}
catch (Exception e)
{
client.Close();
}
}
// Called when send completes
private static void SendCallback(IAsyncResult ar)
{
TCPLineClient client = (TCPLineClient)ar.AsyncState;
try
{
// Retrieve the socket from the state object.
Socket socket = client.socket;
// Complete sending the data to the remote device.
int bytesSent = socket.EndSend(ar);
}
catch (Exception e)
{
client.Close();
}
}
// Called when connect completes
private static void ConnectCallback(IAsyncResult ar)
{
TCPLineClient client = (TCPLineClient)ar.AsyncState;
try
{
// Retrieve the socket from the state object.
Socket socket = client.socket;
// Complete the connection.
socket.EndConnect(ar);
// Signal that the connection has been made.
client.socketConnected = true;
}
catch (Exception e)
{
client.Close();
}
}
