hondacrx
148 lines
4.2 KiB
C#
148 lines
4.2 KiB
C#
/*
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* Copyright (C) 2012-2020 CypherCore <http://github.com/CypherCore>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Net;
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using System.Net.Sockets;
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namespace Framework.Networking
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{
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public interface ISocket
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{
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void Accept();
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bool Update();
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bool IsOpen();
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void CloseSocket();
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}
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public abstract class SocketBase : ISocket, IDisposable
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{
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Socket _socket;
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IPEndPoint _remoteIPEndPoint;
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SocketAsyncEventArgs receiveSocketAsyncEventArgsWithCallback;
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SocketAsyncEventArgs receiveSocketAsyncEventArgs;
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public delegate void SocketReadCallback(SocketAsyncEventArgs args);
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protected SocketBase(Socket socket)
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{
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_socket = socket;
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_remoteIPEndPoint = (IPEndPoint)_socket.RemoteEndPoint;
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receiveSocketAsyncEventArgsWithCallback = new SocketAsyncEventArgs();
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receiveSocketAsyncEventArgsWithCallback.SetBuffer(new byte[0x4000], 0, 0x4000);
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receiveSocketAsyncEventArgs = new SocketAsyncEventArgs();
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receiveSocketAsyncEventArgs.SetBuffer(new byte[0x4000], 0, 0x4000);
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receiveSocketAsyncEventArgs.Completed += (sender, args) => ProcessReadAsync(args);
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}
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public virtual void Dispose()
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{
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_socket.Dispose();
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}
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public abstract void Accept();
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public virtual bool Update()
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{
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return IsOpen();
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}
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public IPEndPoint GetRemoteIpAddress()
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{
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return _remoteIPEndPoint;
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}
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public void AsyncReadWithCallback(SocketReadCallback callback)
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{
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if (!IsOpen())
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return;
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receiveSocketAsyncEventArgsWithCallback.Completed += (sender, args) => callback(args);
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receiveSocketAsyncEventArgsWithCallback.SetBuffer(0, 0x4000);
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if (!_socket.ReceiveAsync(receiveSocketAsyncEventArgsWithCallback))
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callback(receiveSocketAsyncEventArgsWithCallback);
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}
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public void AsyncRead()
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{
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if (!IsOpen())
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return;
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receiveSocketAsyncEventArgs.SetBuffer(0, 0x4000);
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if (!_socket.ReceiveAsync(receiveSocketAsyncEventArgs))
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ProcessReadAsync(receiveSocketAsyncEventArgs);
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}
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void ProcessReadAsync(SocketAsyncEventArgs args)
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{
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if (args.SocketError != SocketError.Success)
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{
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CloseSocket();
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return;
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}
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if (args.BytesTransferred == 0)
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{
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CloseSocket();
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return;
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}
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ReadHandler(args);
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}
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public abstract void ReadHandler(SocketAsyncEventArgs args);
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public void AsyncWrite(byte[] data)
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{
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if (!IsOpen())
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return;
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_socket.Send(data);
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}
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public void CloseSocket()
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{
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if (_socket == null || !_socket.Connected)
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return;
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try
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{
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_socket.Shutdown(SocketShutdown.Both);
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_socket.Close();
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}
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catch (Exception ex)
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{
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Log.outDebug(LogFilter.Network, $"WorldSocket.CloseSocket: {GetRemoteIpAddress()} errored when shutting down socket: {ex.Message}");
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}
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OnClose();
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}
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public virtual void OnClose() { Dispose(); }
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public bool IsOpen() { return _socket.Connected; }
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public void SetNoDelay(bool enable)
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{
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_socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, enable);
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}
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}
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}
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