private void CloseClientSocket(SocketAsyncEventArgs e)
{
AsyncUserToken token = e.UserToken as AsyncUserToken;
// close the socket associated with the client
try
{
token.Socket.Shutdown(SocketShutdown.Send);
}
// throws if client process has already closed
catch (Exception) { }
token.Socket.Close();
// decrement the counter keeping track of the total number of clients connected to the server
Interlocked.Decrement(ref m_numConnectedSockets);
m_socketManager.Clean(e);
// Free the SocketAsyncEventArg so they can be reused by another client
m_readWritePool.Push(e);
m_maxNumberAcceptedClients.Release();
Console.WriteLine("A client has been disconnected from the server. There are {0} clients connected to the server", m_numConnectedSockets);
}
// This method is invoked when an asynchronous send operation completes.
// The method issues another receive on the socket to read any additional
// data sent from the client
//
// <param name="e"></param>
private void ProcessSend(SocketAsyncEventArgs e)
{
if (e.SocketError == SocketError.Success)
{
/**如果数据过大，需要多次发送，这里判断还有没有需要发送的数据
*/
// done echoing data back to the client
AsyncUserToken token = (AsyncUserToken)e.UserToken;
if (m_socketManager.Write(e))
{
Send(e);
}
else
{
//设置buffer
// read the next block of data send from the client
Receive(e);
}
}
else
{
CloseClientSocket(e);
}
}
