/// <summary>
/// 处理过期的客户端
/// </summary>
/// <param name="expiredClientList"></param>
private void HandleExpiredClients(IList <ITcpClientProxy> expiredClientList)
{
if (expiredClientList != null)
{
for (int index = expiredClientList.Count - 1; index >= 0; index--)
{
var clientHandler = expiredClientList[index];
_logger.Error(string.Format("BusinessId为{0}的学生机心跳超时，将断开接连。", clientHandler.BusinessID));
// 通知外部事件
try
{
if (this.ClientDisconnected != null)
{
ClientStateEventArgs stateObject = new ClientStateEventArgs(clientHandler.ReceiveContext);
stateObject.ClientStatus = ClientStateEnums.Closed;
this.ClientDisconnected(this, stateObject);
}
}
catch (Exception ex)
{
// 外部未处理的异常，记录日志，不影响主流程。
_logger.Error(ex.StackTrace);
}
this.RecycleContext(clientHandler.ReceiveContext);
}
}
}
// 客户端断开
protected virtual void OnClientDisconnected(SocketAsyncEventArgs e)
{
if (this.ClientDisconnected != null)
{
ClientStateEventArgs stateObject = new ClientStateEventArgs(e);
this.ClientDisconnected(this, stateObject);
}
}
// 向客户端发送消息后
protected virtual void OnMessageSend(SocketAsyncEventArgs e)
{
if (this.MessageSend != null)
{
ClientStateEventArgs stateObject = new ClientStateEventArgs(e);
stateObject.ClientStatus = ClientStateEnums.Connected;
this.MessageSend(this, stateObject);
}
}
// 从客户端接收消息后
protected virtual void OnMessageReceived(SocketAsyncEventArgs e)
{
if (this.MessageReceived != null)
{
ClientStateEventArgs stateObject = new ClientStateEventArgs(e);
stateObject.ClientStatus = ClientStateEnums.Connected;
this.MessageReceived(this, stateObject);
// 保存服务器要返回给客户端的消息（临时）
stateObject.ClientProxy.ExchangedData = stateObject.ResponseMessage;
}
}
/// <summary>
/// 处理错误操作
/// </summary>
/// <param name="e"></param>
private void ProcessError(SocketAsyncEventArgs e)
{
ITcpClientProxy handler = e.UserToken as ITcpClientProxy;
if (!handler.IsDisposed)
{
lock (handler)
{
if (handler.IsDisposed)
{
return;
}
Console.WriteLine("{0} 出错了，回收之。{1} : {2}",
e.RemoteEndPoint,
e.LastOperation,
e.SocketError
);
_logger.Error(string.Format("回收了一个客户端{0}。{1} : {2}",
e.RemoteEndPoint,
e.LastOperation,
e.SocketError));
if (handler != null && handler.ClientStatus != (int)ClientStateEnums.Closed)
{
handler.ClientStatus = (int)ClientStateEnums.Closed;
// 通知外部事件
if (this.ClientDisconnected != null)
{
ClientStateEventArgs stateObject = new ClientStateEventArgs(e);
stateObject.ClientStatus = ClientStateEnums.Closed;
this.ClientDisconnected(this, stateObject);
}
this.RecycleContext(e);
}
handler.Dispose();
}
}
}
/// <summary>
/// 停止侦听服务.
/// </summary>
public void Stop()
{
_logger.Info("主动关闭TCP, 断开接连。");
// 先通知所有客户端断开
if (_clientMembers != null)
{
for (int index = _clientMembers.Count - 1; index >= 0; index--)
{
var clientHandler = _clientMembers[index];
try
{
if (this.ClientDisconnected != null)
{
ClientStateEventArgs stateObject = new ClientStateEventArgs(clientHandler.ReceiveContext);
stateObject.ClientStatus = ClientStateEnums.Closed;
this.ClientDisconnected(this, stateObject);
}
//_clientHandlers.Remove(clientHandler);
}
catch (Exception ex)
{
// 外部未处理的异常，记录日志，不影响主流程。
_logger.Error(ex.StackTrace);
}
//this.RecycleContext(clientHandler.ReceiveContext);
}
}
lock (_tcpLock)
{
// 1.pulse thread close
this.StopCheckingPulse();
// 清理缓存，事件
SocketAsyncEventArgs eventArgs;
while (this._poolOfAcceptEventArgs.Count > 0)
{
eventArgs = _poolOfAcceptEventArgs.Pop();
eventArgs.Completed -= SocketAsyncEventArgs_IOCompleted;
//_bufferManager.FreeBuffer(eventArgs);
eventArgs.Dispose();
}
while (this._poolOfReadWriteEventArgs.Count > 0)
{
eventArgs = _poolOfReadWriteEventArgs.Pop();
eventArgs.Completed -= SocketAsyncEventArgs_IOCompleted;
_bufferManager.FreeBuffer(eventArgs);
eventArgs.Dispose();
}
_bufferManager = null;
//GC.Collect();
try
{
//_socketListener.Disconnect(true);
//_socketListener.Shutdown(SocketShutdown.Both);
}
catch (Exception ex)
{
_logger.Error(ex.StackTrace);
}
finally
{
if (_socketListener != null)
{
_socketListener.Close();
_socketListener.Dispose();
_socketListener = null;
}
}
mutex.ReleaseMutex();
this._semaphoreAcceptedClients.Release();
// 清掉当前客户端
foreach (var client in _clientMembers)
{
Socket s = client.Connection;
try
{
s.Close();
//s.Shutdown(SocketShutdown.Receive);
//s.Disconnect(true);
}
catch (Exception)
{
}
finally
{
if (s.Connected)
{
s.Close();
s.Dispose();
}
s = null;
}
}
_clientMembers.Clear();
}
}