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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSim Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Net;
using System.Net.Sockets;
namespace OpenSim.Region.ScriptEngine.Common.TRPC
{
public class TCPServer: TCPCommon.ServerInterface
{
public readonly int LocalPort;
public TCPServer(int localPort)
{
LocalPort = localPort;
}
private Socket server;
/// <summary>
/// Starts listening for new connections
/// </summary>
public void StartListen()
{
server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ipe = new IPEndPoint(IPAddress.Any, LocalPort);
server.Bind(ipe);
server.Listen(10);
server.BeginAccept(new AsyncCallback(AsyncAcceptConnections), server);
}
/// <summary>
/// Stops listening for new connections
/// </summary>
public void StopListen()
{
server.Close();
server = null;
}
private readonly Dictionary<int, TCPSocket> Clients = new Dictionary<int, TCPSocket>();
private int ClientCount = 0;
public event TCPCommon.ClientConnectedDelegate ClientConnected;
public event TCPCommon.DataReceivedDelegate DataReceived;
public event TCPCommon.DataSentDelegate DataSent;
public event TCPCommon.CloseDelegate Close;
/// <summary>
/// Async callback for new connections
/// </summary>
/// <param name="ar"></param>
private void AsyncAcceptConnections(IAsyncResult ar)
{
int id = ClientCount++;
Socket oldserver = (Socket)ar.AsyncState;
Socket client = oldserver.EndAccept(ar);
TCPSocket S = new TCPSocket(id, client);
// Add to dictionary
Clients.Add(id, S);
// Add event handlers
S.Close += new TCPSocket.CloseDelegate(S_Close);
S.DataReceived += new TCPSocket.DataReceivedDelegate(S_DataReceived);
S.DataSent += new TCPSocket.DataSentDelegate(S_DataSent);
// Start it
S.Start();
Debug.WriteLine("Connection received: " + client.RemoteEndPoint.ToString());
// Fire Connected-event
if (ClientConnected != null)
ClientConnected(id, client.RemoteEndPoint);
}
void S_DataSent(int ID, int length)
{
if (DataSent != null)
DataSent(ID, length);
}
void S_DataReceived(int ID, byte[] data, int offset, int length)
{
if (DataReceived != null)
DataReceived(ID, data, offset, length);
}
void S_Close(int ID)
{
if (Close != null)
Close(ID);
Clients.Remove(ID);
}
public void Send(int clientID, byte[] data, int offset, int len)
{
Clients[clientID].Send(clientID, data, offset, len);
}
}
}
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