void ConnectCallback(IAsyncResult ar)
{
try
{
_tcp.EndConnect(ar);
_stream = _tcp.GetStream();
Debug.Log($"NS CON: Socket connected to {_tcp.Client.RemoteEndPoint.ToString()}");
ThreadDispatcher.RunOnMainThread(() => {
Message(this, new StateChangedEventArgs(State.CONNECTED, "connected, checking version..."));
});
CheckVersion();
ThreadDispatcher.RunOnMainThread(() =>
{
Sync();
});
}
catch (Exception ex)
{
if (_tcp != null)
{
_tcp.Close();
_tcp = null;
}
Debug.LogError($"NS CON: {ex.Message}");
ThreadDispatcher.RunOnMainThread(() => {
Message(this, new StateChangedEventArgs(State.FAILED_TO_CONNECT, $"failed to connect: {ex.Message}"));
});
}
}
// internal methods
void CheckVersion()
{
if (!IsConnected)
{
return;
}
byte result = SndAndRcv("QMAC-");
if (result == 'F')
{
var message = "version cannot be checked";
ThreadDispatcher.RunOnMainThread(() =>
{
Message(this, new StateChangedEventArgs(State.FAILED_TO_CHECK_ECI_VERSION, message));
});
throw new Exception(message);
}
else if (result == 'I')
{
byte[] buffer = new byte[256];
_stream.Read(buffer, 0, 1);
var version = buffer[0];
if (version != 1 && version != '1')
{
var message = $"unknown version: {(char)version} (\\x{version})";
ThreadDispatcher.RunOnMainThread(() =>
{
Message(this, new StateChangedEventArgs(State.UNSUPPORTED_ECI_VERIONS, message));
});
throw new Exception(message);
}
}
}