Thread: Client not receiving FD_CLOSE notification message?

Hi
I have a client server application.
Server is an mfc dialog based application.
Client is an mfc sdi application.
Winsock2 is used for communication.

Both client & server are asynchronous in nature credits to WSAAsyncSelect().

The client & the server are connected to each other:
Now whenever i close the client socket, FD_CLOSE notification is send to the server but the vice versa is not happening.
The client donot gets the FD_CLOSE notification when the server socket is closed.

What cud be the possible problem?

waiting for suggestions

Regards

Hi Guys
I am waiting for some suggestions.
Can any one plz help!

Regards
dp_76

Once you've called closesocket you can no longer get notification messages for that socket because closesocket deletes the socket. FD_CLOSE is sent when a socket's connection is closed but the socket must still be valid.

Originally Posted by MSDN

To assure that all data is sent and received on a connected socket before it is closed, an application should use shutdown to close connection before calling closesocket. For example, to initiate a graceful disconnect:

Call WSAAsyncSelect to register for FD_CLOSE notification.
Call shutdown with how=SD_SEND.
When FD_CLOSE received, call recv until zero returned, or SOCKET_ERROR.
Call closesocket.