/// <summary>
/// Initiates the connection to the app
/// </summary>
/// <returns>An async Task</returns>
/// <exception cref="Exception">Thrown if the connection is refused</exception>
public async Task Connect()
{
if (SocketId != null)
{
return;
}
ConnectCompletionSource = new TaskCompletionSource <bool>();
uint nonce = Packet.WatchNonce(async pk =>
{
await Task.Run(() =>
{
TcpCSSocketControl control = new TcpCSSocketControl(pk);
SocketId = control.SocketId;
EP.Connections.Add(IdToString(control.SocketId), this);
Requestor = true;
Stream = new NRStream(this);
if (control.CheckFlag(TcpCSSocketControl.Close))
{
ConnectCompletionSource.SetResult(false);
}
});
});
EP.TransmitRaw(new TcpCOpenSocket(InstanceId, nonce));
bool success = await ConnectCompletionSource.Task;
if (!success)
{
await Close(false);
throw new Exception("Connect to distant end was refused.");
}
}
/// <summary>
/// Closes the connection
/// </summary>
/// <param name="sendPack">Whether to send the payload. Usually this is true.</param>
public async Task Close(bool sendPack = true)
{
await Task.Run(() =>
{
if (!Open)
{
return;
}
Open = false;
if (sendPack)
{
TcpCSSocketControl control = new TcpCSSocketControl(SocketId, TcpCSSocketControl.Close);
EP.TransmitRaw(control);
}
if (Stream != null && Stream.IsOpen)
{
Stream.Close();
}
EP.Connections.Remove(IdToString(SocketId));
});
}
internal async Task SendRaw(byte[] bytes)
{
var pa = new TcpCSSocketData(SocketId, bytes);
await Task.Run(() => EP.TransmitRaw(pa));
}
