Re: CAsyncSocket::OnClose
On 3 Okt., 21:30, Joseph M. Newcomer <newco...@flounder.com> wrote:
Some thoughts...
Because this is happening at the socket level, and HTTP is a higher-level=
protocol, I
suspect that this is the result of a keep-alive not actually doing anythi=
ng, and the
higher-level protocol has chosen to close the socket on the other side. =
So my suspicion is that by the time you get to OnClose, it is far too lat=
e; the socket has
already been closed.
joe
Is there another method in the CAsyncsocket class which could be able
to enable the "keep-alive mechanism"? Have you ever recognized this
behaviour and tried to find a solution to solve it? Or was it in your
programms not yet necessary?
best regards
Hans
On Sun, 3 Oct 2010 12:24:04 -0700 (PDT), mfc <mfcp...@googlemail.com> wro=
te:
Hi,
I`ve one question regarding the OnClose() method of the CAsyncsocket
(CAsyncSocket::OnClose).
void CMyAppAsyncSocket::OnClose(int nErrorCode)
{
CAsyncSocket::OnClose(nErrorCode);
}
It seems to me that this method is always called when a successfull
(e.g.) http request was made. It seems to me that the MFC application
treated the OnClose() callback as a graceful shutdown event after all
packets are received. And the http connection header - keep-alive -
won`t be considered here in any way. So that I could not use the
entire HTTP1.1 protocol :-(
Is is possible to modify the OnClose() method (if the http keep-alive
header is available), so that it is only called if the keep-alive
timeout occurred?
best regards
Hans
Joseph M. Newcomer [MVP]
email: newco...@flounder.com
Web:http://www.flounder.com
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