public void ReadCallback(IAsyncResult result)
{
String content = String.Empty;
// Retrieve the state object and the handler socket
// from the asynchronous state object.
StateObject state = (StateObject)result.AsyncState;
Socket handler = state.workSocket;
// Read data from the client socket.
int bytesRead = handler.EndReceive(result);
if (bytesRead > 0)
{
// There might be more data, so store the data received so far.
state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead));
content = state.sb.ToString();
if (content.IndexOf("<NEXT>") > -1)
{
Debug.Log("NEXT");
state.sb.Remove(0, state.sb.Length);
byte[] currentFrame = clientDataService.GetCurrentFrameAsByteArray();
Send(handler, currentFrame);
}
else if (content.IndexOf("<PLAY>") > -1)
{
Debug.Log("PLAY");
state.sb.Remove(0, state.sb.Length);
content = content.Substring(0, content.IndexOf("<PLAY>"));
string[] toSend = content.Split(new string[] { "<EOL>" }, StringSplitOptions.None);
Debug.Log(string.Format("drawing {0} lines from socket. \n", toSend.Length));
clientDataService.ClearLines();
foreach (string line in toSend)
{
if (!string.IsNullOrEmpty(line))
{
Debug.Log(string.Format("line: {0}", line));
clientDataService.DrawCompleteLineFromString(line);
}
}
clientDataService.Play();
handler.BeginReceive(
state.buffer,
0,
StateObject.BufferSize,
0,
new AsyncCallback(ReadCallback),
state
);
}
else if (content.IndexOf("<RESET>") > -1)
{
Debug.Log("RESET");
state.sb.Remove(0, state.sb.Length);
clientDataService.Stop();
clientDataService.Reset();
handler.BeginReceive(
state.buffer,
0,
StateObject.BufferSize,
0,
new AsyncCallback(ReadCallback),
state
);
}
else if (content.IndexOf("<QUIT>") > -1)
{
Debug.Log("QUIT");
state.sb.Remove(0, state.sb.Length);
// Closing connection
handler.Shutdown(SocketShutdown.Both);
handler.Close();
StopListening();
}
else
{
// Not all data received. Get more.
handler.BeginReceive(
state.buffer,
0,
StateObject.BufferSize,
0,
new AsyncCallback(ReadCallback),
state
);
}
}
}