public IObservable<ConnectionToken> BuildConnectionToken(string host, int port, IScheduler scheduler)
{
return Observable.Create<ConnectionToken>(observer =>
{
var disposable = new CompositeDisposable();
var socket = socketFactory();
var socketEvent = socketEventsFactory();
socketEvent.RemoteEndPoint = new DnsEndPoint(host, port);
socketEvent.SocketClientAccessPolicyProtocol = System.Net.Sockets.SocketClientAccessPolicyProtocol.Tcp;
var connectionToken = new ConnectionToken(socket, socketEvent);
var disposableEventSubscription = socketEvent.Completed.Subscribe(_ =>
{
SendNotificationToObserver(observer, socketEvent, connectionToken);
});
var disposableActions = scheduler.Schedule(() =>
{
if (!socket.ConnectAsync(socketEvent))
{
SendNotificationToObserver(observer, socketEvent, connectionToken);
}
});
disposable.Add(disposableEventSubscription);
disposable.Add(disposableActions);
return disposable;
});
}
public RedisTransmitter(ConnectionToken connectionToken)
{
if (connectionToken == null)
throw new ArgumentNullException("connectionToken");
this.connectionToken = connectionToken;
}
private void SendNotificationToObserver(IObserver<ConnectionToken> observer, ISocketAsyncEventArgs socketEvent, ConnectionToken connectionToken)
{
if (socketEvent.SocketError == SocketError.Success)
{
observer.OnNext(connectionToken);
observer.OnCompleted();
}
else
{
observer.OnError(new RedisException(socketEvent.SocketError));
}
}