114 lines
3.8 KiB
C#
114 lines
3.8 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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using System;
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using System.Net.Sockets;
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namespace OpenSim.Region.ScriptEngine.Common.TRPC
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{
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public class TCPSocket
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{
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public readonly Socket Client;
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public readonly int ID;
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public delegate void DataReceivedDelegate(int ID, byte[] data, int offset, int length);
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public delegate void DataSentDelegate(int ID, int length);
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public delegate void CloseDelegate(int ID);
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public event DataReceivedDelegate DataReceived;
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public event DataSentDelegate DataSent;
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public event CloseDelegate Close;
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private byte[] RecvQueue = new byte[4096];
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private int RecvQueueSize = 4096;
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public TCPSocket(int id, Socket client)
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{
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ID = id;
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Client = client;
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}
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public void Start()
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{
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// Start listening
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BeginReceive();
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}
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private void BeginReceive()
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{
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Client.BeginReceive(RecvQueue, 0, RecvQueueSize, SocketFlags.None, new AsyncCallback(asyncDataReceived), Client);
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}
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/// <summary>
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/// Callback for successful receive (or connection close)
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/// </summary>
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/// <param name="ar"></param>
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private void asyncDataReceived(IAsyncResult ar)
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{
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Socket client = (Socket)ar.AsyncState;
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int recv = client.EndReceive(ar);
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// Is connection closed?
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if (recv == 0)
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{
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client.Close();
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Close(ID);
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return;
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}
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// Call receive event
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DataReceived(ID, RecvQueue, 0, recv);
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// Start new receive
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BeginReceive();
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}
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public void Send(int clientID, byte[] data, int offset, int len)
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{
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Client.BeginSend(data, offset, len, SocketFlags.None, new AsyncCallback(asyncDataSent), Client);
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}
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/// <summary>
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/// Callback for successful send
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/// </summary>
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/// <param name="ar"></param>
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void asyncDataSent(IAsyncResult ar)
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{
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Socket client = (Socket)ar.AsyncState;
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int sent = client.EndSend(ar);
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DataSent(ID, sent);
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}
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public void Disconnect()
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{
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Client.Close();
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Close(ID);
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}
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}
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} |