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SocketHelper.cs
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324 lines (302 loc) · 10.4 KB
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/*
* 作用：通过 Socket 实现客户端/服务端通信。
* */
using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Threading;
namespace Helper.Core.Library
{
public class SocketServerHelper
{
#region 私有属性常量
private static object lockItem = new object();
private Socket socket;
private Dictionary<string, SocketThreadHelper> SocketDict = new Dictionary<string, SocketThreadHelper>();
private ISocketProcess process;
#endregion
#region 构造函数
/// <summary>
///
/// </summary>
/// <param name="ip">服务器 IP</param>
/// <param name="port">端口</param>
/// <param name="process">数据流处理接口</param>
/// <param name="maxClientCount">客户端最大连接数</param>
public SocketServerHelper(string ip, int port, ISocketProcess process, int maxClientCount = int.MaxValue)
{
try
{
this.process = process;
this.socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
this.socket.Bind(new IPEndPoint(IPAddress.Parse(ip), port));
this.socket.Listen(maxClientCount);
}
catch
{
SocketHelper.Close(this.socket);
throw;
}
}
#endregion
#region 对外公开方法
/// <summary>
/// 启动侦听
/// </summary>
public void Listen()
{
this.socket.BeginAccept((IAsyncResult asyncResult) =>
{
try
{
Socket clientSocket = this.socket.EndAccept(asyncResult);
IPEndPoint clientIPEndPoint = (IPEndPoint)clientSocket.RemoteEndPoint;
SocketThreadHelper threadHelper = new SocketThreadHelper(this, clientIPEndPoint.ToString(), clientSocket, this.process, (Socket socket) =>
{
this.RemoveSocket(socket);
});
SocketDict.Add(clientIPEndPoint.ToString(), threadHelper);
System.Threading.WaitCallback waitCallback = new WaitCallback(threadHelper.Receive);
ThreadPool.QueueUserWorkItem(waitCallback);
this.Listen();
}
catch
{
throw;
}
}, null);
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="key">客户端 IP 和 端口组合</param>
/// <param name="bytes">数据流</param>
/// <param name="callback">回调函数</param>
public void Send(string key, byte[] bytes, Action<bool> callback)
{
if (this.SocketDict == null || !this.SocketDict.ContainsKey(key)) return;
this.SocketDict[key].Send(bytes, callback);
}
/// <summary>
/// 广播数据
/// </summary>
/// <param name="bytes">数据流</param>
/// <param name="callback">发送回调，成功数，失败数</param>
public void Broadcast(byte[] bytes, Action<int, int> callback)
{
int success = 0;
int error = 0;
foreach (KeyValuePair<string, SocketThreadHelper> keyValueItem in SocketDict)
{
keyValueItem.Value.Send(bytes, (bool status) =>
{
if (status) success++;
if (!status) error++;
});
}
if (callback != null) callback(success, error);
}
/// <summary>
/// 删除 Socket
/// </summary>
/// <param name="key">客户端 IP 和 端口组合</param>
public void Remove(string key)
{
if (!SocketDict.ContainsKey(key)) return;
lock(lockItem)
{
if (SocketDict.ContainsKey(key))
{
SocketDict.Remove(key);
}
}
}
#endregion
#region 逻辑处理私有函数
private void RemoveSocket(Socket socket)
{
IPEndPoint clientIPEndPoint = (IPEndPoint)socket.RemoteEndPoint;
if (this.SocketDict.ContainsKey(clientIPEndPoint.ToString()))
{
this.SocketDict.Remove(clientIPEndPoint.ToString());
}
}
#endregion
}
public class SocketClientHelper
{
#region 私有属性常量
private Socket socket;
private SocketReceiveHelper helper;
#endregion
#region 对外公开方法
/// <summary>
/// 连接服务器
/// </summary>
/// <param name="ip">服务器 IP</param>
/// <param name="port">端口</param>
/// <param name="process">数据流处理接口</param>
public void Connect(string ip, int port, ISocketProcess process)
{
try
{
this.socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
this.socket.BeginConnect(new IPEndPoint(IPAddress.Parse(ip), port), (IAsyncResult asyncResult) =>
{
try
{
this.socket.EndConnect(asyncResult);
}
catch
{
throw;
}
}, null);
this.helper = new SocketReceiveHelper(null, this, this.socket, null, process, () =>
{
SocketHelper.Close(this.socket);
});
this.helper.Receive();
}
catch
{
SocketHelper.Close(this.socket);
throw;
}
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="bytes">数据流</param>
/// <param name="callback">回调函数</param>
public void Send(byte[] bytes, Action<bool> callback)
{
new SocketSendHelper(this.socket).Send(bytes, callback);
}
#endregion
}
#region 逻辑处理辅助类
internal class SocketHelper
{
public static void Close(Socket socket)
{
if (socket != null)
{
socket.Disconnect(false);
socket.Close();
socket.Dispose();
}
}
}
internal class SocketThreadHelper
{
private Socket socket;
private SocketReceiveHelper helper;
public SocketThreadHelper(SocketServerHelper helper, string key, Socket socket, ISocketProcess process, Action<Socket> closeCallback)
{
this.socket = socket;
this.helper = new SocketReceiveHelper(helper, null, socket, key, process, () =>
{
if (closeCallback != null) closeCallback(socket);
});
}
public void Receive(object obj)
{
this.helper.Receive();
}
public void Send(byte[] bytes, Action<bool> callback)
{
new SocketSendHelper(this.socket).Send(bytes, callback);
}
}
internal class SocketReceiveHelper
{
private Socket socket;
private ISocketProcess process;
private Action closeCallback;
private SocketServerHelper serverHelper;
private SocketClientHelper clientHelper;
private string key;
public SocketReceiveHelper(SocketServerHelper serverHelper, SocketClientHelper clientHelper, Socket socket, string key, ISocketProcess process, Action closeCallback)
{
this.serverHelper = serverHelper;
this.clientHelper = clientHelper;
this.socket = socket;
this.process = process;
this.key = key;
this.closeCallback = closeCallback;
}
public void Receive()
{
byte[] buffers = new byte[1024 * 1024];
this.socket.BeginReceive(buffers, 0, buffers.Length, SocketFlags.None, (IAsyncResult asyncResult) =>
{
try
{
int length = this.socket.EndReceive(asyncResult);
if (length > 0)
{
byte[] bytes = new byte[length];
Array.Copy(buffers, 0, bytes, 0, length);
// 消息交给外部处理
if (process != null) process.NewItem().Process(this.serverHelper, this.clientHelper, this.key, bytes);
this.Receive();
}
else
{
if (this.closeCallback != null) this.closeCallback();
}
}
catch
{
throw;
}
}, null);
}
}
internal class SocketSendHelper
{
private Socket socket;
public SocketSendHelper(Socket socket)
{
this.socket = socket;
}
public void Send(byte[] bytes, Action<bool> callback)
{
if (!socket.Connected) return;
this.socket.BeginSend(bytes, 0, bytes.Length, SocketFlags.None, (IAsyncResult asyncResult) =>
{
try
{
int length = this.socket.EndSend(asyncResult);
if (callback != null) callback(length == bytes.Length);
}
catch
{
if (callback != null) callback(false);
throw;
}
}, null);
}
}
#endregion
#region 逻辑处理辅助接口
public interface ISocketProcess
{
/// <summary>
/// 数据流处理
/// </summary>
/// <param name="server">SocketServerHelper</param>
/// <param name="client">SocketClientHelper</param>
/// <param name="key">IP 和 端口组合标识</param>
/// <param name="bytes">数据流</param>
void Process(SocketServerHelper server, SocketClientHelper client, string key, byte[] bytes);
/// <summary>
/// 对象克隆
/// </summary>
/// <returns></returns>
ISocketProcess NewItem();
}
#endregion
}