/// <summary>
/// 发送完成时处理函数
/// </summary>
/// <param name="e">与发送完成操作相关联的SocketAsyncEventArg对象</param>
private void ProcessSend(SocketAsyncEventArgs e)
{
if (e.SocketError == SocketError.Success)
{
//Socket s = (Socket)e.UserToken;
AsyncUserToken token = (AsyncUserToken)e.UserToken;
//TODO
if (!token.Socket.ReceiveAsync(e))//为接收下一段数据，投递接收请求，这个函数有可能同步完成，这时返回false，并且不会引发SocketAsyncEventArgs.Completed事件
{
//同步接收时处理接收完成事件
//ProcessReceive(e);
ProcessSend(e);
}
}
else
{
CloseClientSocket(e);
}
}
/// <summary>
///接收完成时处理函数
/// </summary>
/// <param name="e">与接收完成操作相关联的SocketAsyncEventArg对象</param>
private void ProcessReceive(SocketAsyncEventArgs e)
{
if (e.SocketError == SocketError.Success)//if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{
// 检查远程主机是否关闭连接
if (e.BytesTransferred > 0)
{
//Socket s = (Socket)e.UserToken;
AsyncUserToken token = (AsyncUserToken)e.UserToken;
if (token.Socket == null)
{
return;
}
//判断所有需接收的数据是否已经完成
//if (token.Socket.Poll(-1, SelectMode.SelectRead))//(s.Available == 0)
{
//从侦听者获取接收到的消息。
//String received = Encoding.ASCII.GetString(e.Buffer, e.Offset, e.BytesTransferred);
//echo the data received back to the client
//e.SetBuffer(e.Offset, e.BytesTransferred);
byte[] data = new byte[e.BytesTransferred];
Array.Copy(e.Buffer, e.Offset, data, 0, data.Length);//从e.Buffer块中复制数据出来，保证它可重用
lock (token.Buffer)
{
token.Buffer.AddRange(data);
}
//Console.WriteLine(_serverSock.LocalEndPoint.ToString());
string info = Encoding.Default.GetString(data);
Log4Debug(String.Format("收到 {0} 数据为 {1}", token.Remote.ToString(), info));
//TODO 处理数据
//sf.ReceiveData(info, token.Socket);
mf.TCPReceiveData = info;
if (mf.PJLink_Pro)
{
mf.Invoke(new MethodInvoker(delegate()
{
mf.richTextBox2.AppendText("Receive:" + info);
}));
}
//e.SetBuffer(e.Offset, e.BytesTransferred);
//Send(s, data,0,data.Length,10);
//m_sendSAEA = new SocketAsyncEventArgs();
//Send(m_sendSAEA, data);
//增加服务器接收的总字节数。
}
if (!token.Socket.ReceiveAsync(e))//为接收下一段数据，投递接收请求，这个函数有可能同步完成，这时返回false，并且不会引发SocketAsyncEventArgs.Completed事件
{
//同步接收时处理接收完成事件
ProcessReceive(e);
//ProcessSend(e);
}
}
else
{
//Log4Debug(String.Format("断开连接==="));
CloseClientSocket(e);
}
}
else
{
CloseClientSocket(e);
}
}
