Re: OnAccept getting socket handle

From:
Stephen Myers <""StephenMyers\"@discussions@microsoft.com">
Newsgroups:
microsoft.public.vc.mfc
Date:
Thu, 03 Jun 2010 09:34:35 -0500
Message-ID:
<OkV4knyALHA.3840@TK2MSFTNGP02.phx.gbl>
bernd wrote:

Hi,

how is it possible to get the CAsyncSocket-Handle in the OnAccept-
method? I don`t want to install one thread for each connection - I`ve
one thread for all http-connections.

void ConnSoc::OnAccept(int nErrorCode)
{
  //doing some error stuff

 // New connection is being established
 CAsyncSocket soc; //using threads / detach / attach

  if(!Accept(soc)) //error-handling

  CAsyncSocket::OnAccept(nErrorCode);
}

If you install a thread for each connection, a new socket is installed
with detach / attach handling. But what`s a suitable solution using
only one thread?

class ConnSoc : public CAsyncSocket
class SocketThread : public CWinThread

At the moment I`ve installed a protected function within SocketThread
virtual ConnSoc * GetSocket() {ASSERT(FALSE); return NULL; }

best regards
Bernd


Please note that in your example, soc will go out of scope at the end of
OnAccept at which time it will detach and disappear.

How about something like the following. (Please note I've extracted it
from working code and may have removed something important.)

You create a new instance of the client socket class. It can be a
separate class or just a new instance of ConnSoc. I've called it
CClientSocket.

Once you've got the pointer to the new instance you can PostMessage it
to a window, store it in a list, ignore it. The new instance can then
handle OnConnect and OnSend in order to start sending stuff to the
connected socket. Handle OnReceive to retrieve data from the opened socket.

void ConnSoc::OnAccept(int nErrorCode)
{
// check nErrorCode
    CClientSocket *pSocket = new CClientSocket();

    if(!Accept(*pSocket)){
    // Error handling
    }

    CAsyncSocket::OnAccept(nErrorCode);
}

HTH
Steve

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