c#中异步基于消息通信的完成端口的TCP/IP协议的组件实现(客户端-源代码)

using System;
using System.IO;
using System.ComponentModel;
using System.Collections;
using System.Diagnostics;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace MyKJ
{
/**//// <summary>
/// MyTcpIpClient 提供在Net TCP_IP 协议上基于消息的客户端
/// </summary>
public class MyTcpIpClient : System.ComponentModel.Component
{
private int bufferSize=2048;
private string tcpIpServerIP="127.0.0.1";
private int tcpIpServerPort=11000;
private Socket ClientSocket=null;
private ManualResetEvent connectDone = new ManualResetEvent(false);
private ManualResetEvent sendDone = new ManualResetEvent(false);

private void ConnectCallback(IAsyncResult ar)
{
try
{
Socket client = (Socket) ar.AsyncState;
client.EndConnect(ar);

}
catch (Exception e)
{
OnErrorEvent(new ErrorEventArgs(e));
}
finally
{
connectDone.Set();
}
}
private void SendCallback(IAsyncResult ar)
{
try
{
Socket client = (Socket) ar.AsyncState;
int bytesSent = client.EndSend(ar);
//Console.WriteLine(bytesSent);
}
catch (Exception e)
{
OnErrorEvent(new ErrorEventArgs(e));
}
finally
{
sendDone.Set();
}
}
private void ReceiveCallback(IAsyncResult ar)
{
Socket handler=null;
try
{
lock(ar)
{
StateObject state = (StateObject) ar.AsyncState;
handler = state.workSocket;

int bytesRead = handler.EndReceive(ar);

if (bytesRead > 0)
{
int ReadPiont=0;
while(ReadPiont<bytesRead)
{
if(state.Cortrol==0 && ReadPiont<bytesRead)
{
long bi1=state.buffer[ReadPiont];
bi1=(bi1<<24)&0xff000000;
state.packSize=bi1;
ReadPiont++;
state.Cortrol=1;
}

if(state.Cortrol==1 && ReadPiont<bytesRead)
{
long bi1=state.buffer[ReadPiont];
bi1=(bi1<<16)&0x00ff0000;
state.packSize=state.packSize+bi1;
ReadPiont++;
state.Cortrol=2;
}

if(state.Cortrol==2 && ReadPiont<bytesRead)
{
long bi1=state.buffer[ReadPiont];
bi1=(bi1<<8)&0x0000ff00;
state.packSize=state.packSize+bi1;
ReadPiont++;
state.Cortrol=3;
}

if(state.Cortrol==3 && ReadPiont<bytesRead)
{
long bi1=state.buffer[ReadPiont];
bi1=bi1&0xff;
state.packSize=state.packSize+bi1-4;
ReadPiont++;
state.Cortrol=4;
}

if(state.Cortrol==4 && ReadPiont<bytesRead)
{
long bi1=state.buffer[ReadPiont];
bi1=(bi1<<24)&0xff000000;
state.residualSize=bi1;
ReadPiont++;
state.Cortrol=5;
state.packSize-=1;
}

if(state.Cortrol==5 && ReadPiont<bytesRead)
{
long bi1=state.buffer[ReadPiont];
bi1=(bi1<<16)&0x00ff0000;
state.residualSize=state.residualSize+bi1;
ReadPiont++;
state.Cortrol=6;
state.packSize-=1;
}

if(state.Cortrol==6 && ReadPiont<bytesRead)
{
long bi1=state.buffer[ReadPiont];
bi1=(bi1<<8)&0x0000ff00;
state.residualSize=state.residualSize+bi1;
ReadPiont++;
state.Cortrol=7;
state.packSize-=1;
}
if(state.Cortrol==7 && ReadPiont<bytesRead)
{
long bi1=state.buffer[ReadPiont];
bi1=bi1&0xff;
state.residualSize=state.residualSize+bi1;
state.Datastream.SetLength(0);
state.Datastream.Position=0;

ReadPiont++;
state.Cortrol=8;
state.packSize-=1;
}

if(state.Cortrol==8 && ReadPiont<bytesRead)
{
int bi1=bytesRead-ReadPiont;
int bi2=(int)(state.residualSize-state.Datastream.Length);
if(bi1>=bi2)
{
state.Datastream.Write(state.buffer,ReadPiont,bi2);
ReadPiont+=bi2;
OnInceptEvent(new InceptEventArgs(state.Datastream,handler));
state.Cortrol=9;
state.packSize-=bi2;
}
else
{
state.Datastream.Write(state.buffer,ReadPiont,bi1);
ReadPiont+=bi1;
state.packSize-=bi1;
}
}
if(state.Cortrol==9 && ReadPiont<bytesRead)
{
int bi1=bytesRead-ReadPiont;
if(bi1<state.packSize)
{
state.packSize=state.packSize-bi1;
ReadPiont+=bi1;
}
else
{
state.Cortrol=0;
ReadPiont+=(int)state.packSize;
}
}
}
}
else
{
throw(new Exception("读入的数据小于1bit"));
}
if(handler.Connected==true)
{
handler.BeginReceive(state.buffer,0,bufferSize,0,
new AsyncCallback(ReceiveCallback), state);
}
}
}
catch (Exception e)
{
OnErrorEvent(new ErrorEventArgs(e));

}
}

/**//// <summary>
/// 连接服务器
/// </summary>
public void Conn()
{
try
{
ClientSocket=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
IPAddress ipAddress = IPAddress.Parse(tcpIpServerIP);
IPEndPoint remoteEP = new IPEndPoint(ipAddress, tcpIpServerPort);
connectDone.Reset();
ClientSocket.BeginConnect(remoteEP,new AsyncCallback(ConnectCallback),ClientSocket);
connectDone.WaitOne();
StateObject state = new StateObject(bufferSize,ClientSocket);
ClientSocket.BeginReceive(state.buffer,0,bufferSize,0,
new AsyncCallback(ReceiveCallback), state);
}
catch(Exception e)
{
OnErrorEvent(new ErrorEventArgs(e));
}

}
/**//// <summary>
/// 断开连接
/// </summary>
public void Close()
{
try
{
if(ClientSocket.Connected==true)
{
ClientSocket.Shutdown(SocketShutdown.Both);
ClientSocket.Close();
}
}
catch(Exception e)
{
OnErrorEvent(new ErrorEventArgs(e));
}

}
/**//// <summary>
/// 发送一个流数据
/// </summary>
/// <param name="Astream">数据流</param>
public void Send(Stream Astream)
{
try
{
if(ClientSocket.Connected==false)
{
throw(new Exception("没有连接服务器不可以发送信息!"));
}
Astream.Position=0;
byte[] byteData=new byte[bufferSize];
int bi1=(int)((Astream.Length+8)/bufferSize);
int bi2=(int)Astream.Length;
if(((Astream.Length+8)%bufferSize)>0)
{
bi1=bi1+1;
}
bi1=bi1*bufferSize;

byteData[0]=System.Convert.ToByte(bi1>>24);
byteData[1]=System.Convert.ToByte((bi1&0x00ff0000)>>16);
byteData[2]=System.Convert.ToByte((bi1&0x0000ff00)>>8);
byteData[3]=System.Convert.ToByte((bi1&0x000000ff));

byteData[4]=System.Convert.ToByte(bi2>>24);
byteData[5]=System.Convert.ToByte((bi2&0x00ff0000)>>16);
byteData[6]=System.Convert.ToByte((bi2&0x0000ff00)>>8);
byteData[7]=System.Convert.ToByte((bi2&0x000000ff));

int n = Astream.Read(byteData, 8, byteData.Length-8);

while (n>0)
{
ClientSocket.BeginSend(byteData, 0, byteData.Length, 0,    new AsyncCallback(SendCallback), ClientSocket);
sendDone.WaitOne();
byteData=new byte[bufferSize];
n = Astream.Read(byteData,0,byteData.Length);
}
}
catch (Exception e)
{
OnErrorEvent(new ErrorEventArgs(e));
}
}

/**//// <summary>
/// 构造
/// </summary>
/// <param name="container">父控件</param>
public MyTcpIpClient(System.ComponentModel.IContainer container)
{
container.Add(this);
InitializeComponent();

//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/**//// <summary>
/// 构造
/// </summary>
public MyTcpIpClient()
{
InitializeComponent();

//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}

Component Designer generated code#region Component Designer generated code
/**//// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{

}
#endregion

/**//// <summary>
/// 要连接的服务器IP地址
/// </summary>
public string TcpIpServerIP
{
get
{
return tcpIpServerIP;
}
set
{
tcpIpServerIP=value;
}
}

/**//// <summary>
/// 要连接的服务器所使用的端口
/// </summary>
public int TcpIpServerPort
{
get
{
return tcpIpServerPort;
}
set
{
tcpIpServerPort=value;
}
}

/**//// <summary>
/// 缓冲器大小
/// </summary>
public int BufferSize
{
get
{
return bufferSize;
}
set
{
bufferSize=value;
}
}

/**//// <summary>
/// 连接的活动状态
/// </summary>
public bool Activ
{
get
{
if(ClientSocket==null)
{
return false;
}
return ClientSocket.Connected;
}
}
/**//// <summary>
/// 接收到数据引发的事件
/// </summary>
public event InceptEvent Incept;
/**//// <summary>
/// 引发接收数据事件
/// </summary>
/// <param name="e">接收数据</param>
protected virtual void OnInceptEvent(InceptEventArgs e)
{
if (Incept != null)
{
Incept(this, e);
}
}
/**//// <summary>
/// 发生错误引发的事件
/// </summary>
public event ErrorEvent Error;
/**//// <summary>
/// 引发错误事件
/// </summary>
/// <param name="e">错误数据</param>
protected virtual void OnErrorEvent(ErrorEventArgs e)
{
if (Error != null)
{
Error(this, e);
}
}

}

/**//// <summary>
/// 接收数据事件
/// </summary>
public class InceptEventArgs : EventArgs
{
private readonly Stream datastream;
private readonly Socket clientSocket;
/**//// <summary>
/// 构造
/// </summary>
/// <param name="Astream">接收到的数据</param>
/// <param name="ClientSocket">接收的插座</param>
public InceptEventArgs(Stream Astream,Socket ClientSocket)
{
datastream=Astream;
clientSocket=ClientSocket;
}
/**//// <summary>
/// 接受的数据流
/// </summary>
public Stream Astream
{
get { return datastream;}
}
/**//// <summary>
/// 接收的插座
/// </summary>
public Socket ClientSocket
{
get { return clientSocket;}
}
}
/**//// <summary>
/// 定义接收委托
/// </summary>
public delegate void InceptEvent(object sender, InceptEventArgs e);
/**//// <summary>
/// 错处事件
/// </summary>
public class ErrorEventArgs : EventArgs
{
private readonly Exception error;
/**//// <summary>
/// 构造
/// </summary>
/// <param name="Error">错误信息对象</param>
public ErrorEventArgs(Exception Error)
{
error=Error;
}
/**//// <summary>
/// 错误信息对象
/// </summary>
public Exception Error
{
get { return error;}
}
}
/**//// <summary>
/// 错误委托
/// </summary>
public delegate void ErrorEvent(object sender, ErrorEventArgs e);

}