/// <summary>
/// Updates the state of the server and waits for a command to become available.
/// The first command that is available will be passed into a handler.
/// </summary>
/// <param name="handler">The <see cref="IPokeCommandHandler"/> to handle the command with.</param>
public bool ReceiveCommand(IPokeCommandHandler handler)
{
// Duplicate our clients list for use with Socket.Select()
List <Socket> readyClients;
List <Socket> failedClients = new List <Socket>();
lock (_clients)
{
readyClients = new List <Socket>(_clients);
}
// The listener socket is "readable" when a client is ready to be accepted
readyClients.Add(_listener);
// Wait for either a command to become available in a client,
// or a client to be ready to connect
Socket.Select(readyClients, null, null, -1);
foreach (var socket in readyClients)
{
if (socket != _listener)
{
try
{
// Command available
using (var stream = new NetworkStream(socket, false))
{
var command = CommandSerialization.DeserializeCommand(stream);
if (command != null)
{
SendCommandToAll(command);
command.Handle(handler);
}
}
}
catch (IOException)
{
failedClients.Add(socket);
}
break; // Only process one command at a time
}
else
{
// Client ready to connect
var client = _listener.Accept();
ConnectClient(client);
}
}
foreach (var socket in failedClients)
{
RemoveClient(socket);
_clients.Remove(socket);
socket.Close();
}
return(true);
}
public void ReceiveCommand(IPokeCommandHandler handler)
{
using (var stream = new NetworkStream(_socket, false))
{
var command = CommandSerialization.DeserializeCommand(stream);
if (command != null)
{
command.Handle(handler);
}
else
{
Close();
}
}
}