/// <summary>
/// Method called when a <see cref="SocketAsyncEventArgs"/> completes an async operation.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
internal void OnSocketCompleted(object s, SocketAsyncEventArgs e)
{
try
{
switch (e.LastOperation)
{
case SocketAsyncOperation.Connect:
sender = new ClientSender(sendSocketArgs);
sender.Start();
OnConnected();
connector.ReleaseConnectorLock();
break;
case SocketAsyncOperation.Receive:
receiver.Receive(e);
break;
case SocketAsyncOperation.Send:
sender.SendOperationCompleted(e);
break;
default: throw new InvalidOperationException("Unexpected SocketAsyncOperation.");
}
}
catch (Exception exception)
{
OnError(exception);
}
}
/// <inheritdoc />
public void Connect()
{
if (IsRunning)
{
throw new InvalidOperationException("Client is already running.");
}
if (IsConnected)
{
throw new InvalidOperationException("Client is already connected to remote host.");
}
if (ClientConfiguration == null)
{
throw new ArgumentNullException(nameof(ClientConfiguration), "Undefined Client configuration.");
}
if (ClientConfiguration.Port <= 0)
{
throw new ArgumentException($"Invalid port number '{ClientConfiguration.Port}' in configuration.", nameof(ClientConfiguration.Port));
}
if (NetworkHelper.BuildIPAddress(ClientConfiguration.Host) == null)
{
throw new ArgumentException($"Invalid host address '{ClientConfiguration.Host}' in configuration", nameof(ClientConfiguration.Host));
}
SocketError error = connector.Connect(connectSocketArgs);
if (!IsConnected && error != SocketError.Success)
{
OnError(new InvalidOperationException("Could not connect to login server."));
return;
}
receiver = new ClientReceiver(this);
if (!Socket.ReceiveAsync(receiveSocketArgs))
{
receiver.Receive(receiveSocketArgs);
}
IsRunning = true;
}