98 lines
3.1 KiB
C#
98 lines
3.1 KiB
C#
|
|
using SharedClientServer;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Diagnostics;
|
|
using System.Net;
|
|
using System.Net.Sockets;
|
|
using System.Text;
|
|
|
|
namespace Server.Models
|
|
{
|
|
class ServerCommunication : ObservableObject
|
|
{
|
|
private TcpListener listener;
|
|
private List<ServerClient> serverClients;
|
|
public bool Started = false;
|
|
|
|
/// <summary>
|
|
/// use a padlock object to make sure the singleton is thread-safe
|
|
/// </summary>
|
|
private static readonly object padlock = new object();
|
|
|
|
private static ServerCommunication instance = null;
|
|
public int port = 5555;
|
|
|
|
private ServerCommunication()
|
|
{
|
|
listener = new TcpListener(IPAddress.Any, port);
|
|
serverClients = new List<ServerClient>();
|
|
}
|
|
|
|
/// <summary>
|
|
/// returns the singleton serverCommunication instance
|
|
/// </summary>
|
|
public static ServerCommunication INSTANCE
|
|
{
|
|
get
|
|
{
|
|
lock (padlock)
|
|
{
|
|
if (instance == null) {
|
|
instance = new ServerCommunication();
|
|
}
|
|
|
|
}
|
|
return instance;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// start the server and start listening on port 5555 and begin acceptinc tcp clients
|
|
/// </summary>
|
|
public void Start()
|
|
{
|
|
listener.Start();
|
|
Debug.WriteLine($"================================================\nStarted Accepting clients at {DateTime.Now}\n================================================");
|
|
Started = true;
|
|
// when we have accepted a tcp client, call the onclientconnected callback method
|
|
listener.BeginAcceptTcpClient(new AsyncCallback(OnClientConnected), null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// callback method that gets called when a client is accepted
|
|
/// </summary>
|
|
/// <param name="ar">the result of the asynchronous connect call</param>
|
|
private void OnClientConnected(IAsyncResult ar)
|
|
{
|
|
// stop the acceptation
|
|
TcpClient tcpClient = listener.EndAcceptTcpClient(ar);
|
|
Console.WriteLine($"Got connection from {tcpClient.Client.RemoteEndPoint}");
|
|
// create a new serverclient object and add it to the list
|
|
serverClients.Add(new ServerClient(tcpClient));
|
|
//start listening for new tcp clients
|
|
listener.BeginAcceptTcpClient(new AsyncCallback(OnClientConnected), null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// send a message to all tcp clients in the list
|
|
/// </summary>
|
|
/// <param name="message">the message to send</param>
|
|
public void sendToAll(byte[] message)
|
|
{
|
|
foreach (ServerClient sc in serverClients)
|
|
{
|
|
sc.sendMessage(message);
|
|
}
|
|
}
|
|
|
|
public void sendToAllExcept(string username, byte[] message)
|
|
{
|
|
foreach (ServerClient sc in serverClients)
|
|
{
|
|
if (sc.Username != username) sc.sendMessage(message);
|
|
}
|
|
}
|
|
}
|
|
}
|