/// <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)
{
AsyncUserToken token = (AsyncUserToken)e.UserToken;
Socket s = (Socket)token.Socket;
//TODO
token.ActiveDateTime = DateTime.Now;
}
else
{
CloseClientSocket(e);
}
}
/// <summary>
/// 监听Socket接受处理
/// </summary>
/// <param name="e">SocketAsyncEventArg associated with the completed accept operation.</param>
private void ProcessAccept(SocketAsyncEventArgs e)
{
if (e.SocketError == SocketError.Success)
{
Socket s = e.AcceptSocket;//和客户端关联的socket
if (s != null && s.Connected)
{
try
{
Interlocked.Increment(ref _clientCount);//原子操作加1
SocketAsyncEventArgs asyniar = _objectPool.Pop();
AsyncUserToken token = (AsyncUserToken)asyniar.UserToken;
//用户的token操作
token.Socket = s;
token.ID = System.Guid.NewGuid().ToString();
token.ConnectDateTime = DateTime.Now;
SocketUserTokenList.Add(asyniar); //添加到正在连接列表
s.Send(Encoding.UTF8.GetBytes("Your GUID:" + token.ID));
Log4Debug(String.Format("客户 {0} 连入, 共有 {1} 个连接。", s.RemoteEndPoint.ToString(), _clientCount));
if (!s.ReceiveAsync(asyniar))//投递接收请求
{
ProcessReceive(asyniar);
}
}
catch (SocketException ex)
{
Log4Debug(String.Format("接收客户 {0} 数据出错, 异常信息： {1} 。", s.RemoteEndPoint, ex.ToString()));
//TODO 异常处理
}
//投递下一个接受请求
StartAccept(e);
}
}
else
{
CloseClientSocket(e);;
}
}
public void DaemonThreadStart()
{
while (m_thread.IsAlive)
{
SocketAsyncEventArgs[] userTokenArray = null;
m_asyncSocketServer.SocketUserTokenList.CopyList(ref userTokenArray);
for (int i = 0; i < userTokenArray.Length; i++)
{
if (!m_thread.IsAlive)
{
break;
}
try
{
AsyncUserToken userToke = userTokenArray[i].UserToken as AsyncUserToken;
if ((DateTime.Now - userToke.ActiveDateTime).Milliseconds > m_asyncSocketServer.SocketTimeOutMS) //超时Socket断开
{
lock (userTokenArray[i])
{
m_asyncSocketServer.CloseClientSocket(userTokenArray[i]);
}
}
}
catch (Exception E)
{
Log4Debug(string.Format("Daemon thread check timeout socket error, message: {0}", E.Message));
Log4Debug(E.StackTrace);
}
}
for (int i = 0; i < 60 * 1000 / 10; i++) //每分钟检测一次
{
if (!m_thread.IsAlive)
{
break;
}
Thread.Sleep(10);
}
}
}
/// <summary>
/// 关闭socket连接
/// </summary>
/// <param name="e">SocketAsyncEventArg associated with the completed send/receive operation.</param>
public void CloseClientSocket(SocketAsyncEventArgs e)
{
AsyncUserToken token = e.UserToken as AsyncUserToken;
if (token == null)
{
e.AcceptSocket.Close();
_maxAcceptedClients.Release();//释放线程信号量
return;
}
if (e.SocketError == SocketError.OperationAborted || e.SocketError == SocketError.ConnectionAborted)
{
return;
}
Log4Debug(String.Format("客户 {0} 断开连接!", token.Socket.RemoteEndPoint.ToString()));
//删除已经连接的东西
//dt.socketlist.Remove(token);
Socket s = token.Socket as Socket;
CloseClientSocket(s, 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)
{
AsyncUserToken token = (AsyncUserToken)e.UserToken;
token.ActiveDateTime = DateTime.Now;
Socket s = (Socket)token.Socket;
//判断所有需接收的数据是否已经完成
if (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
string info = Encoding.Default.GetString(data);
Log4Debug(String.Format("收到 {0} 数据为 {1}", s.RemoteEndPoint.ToString(), info));
//TODO 处理数据 ,区分数据是否是转发 ,也可以处理成广播
//IPEndPoint iep1 = new IPEndPoint(IPAddress.Any, 12030);
//s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
//s.SendTo(data, iep1);
//if (info == "Listens_all")
//{
// try
// {
// //pc端的用户，存进全局列表
// dt.socketlist.Add(token);
// }
// catch { }
//}
//else
//{
// //遍历pc端登陆的客户端，并发送消息
// for (int i = 0; i < dt.socketlist.Count; i++)
// {
// try
// {
// Socket tmp = ((AsyncUserToken)dt.socketlist[i]).Socket;
// tmp.Send(data);
// }
// catch { }
// }
//}
//增加服务器接收的总字节数。
}
if (!s.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);
}
}
else
{
CloseClientSocket(e);
}
}
else
{
CloseClientSocket(e);
}
}
