accepting a socket connection request

[hamham]

in my main dialog.cpp//dialog-based app

if (serversock.create(8000,SOCK_STREAM,myIP) && serversock.listen())
display OK;

if (serversock.Accept(receivesock,0,0))
display OK;

Is this the method to wait for a connection request?

or should I do it in the OnAccept() of the socket class?
What is the usual method of waiting for connection request and where to accept the request?

[SzadQ]

I thing you should use OnAccept() function. If you use Accept() and there will not be any waiting connections this will block your app.

[Richard.J]

Actually, this is depending on your socket. If it is a blocking socket, calling Accept() will then wait until there is an incoming connection. If it is nonblocking, Accept will return immediately and any incoming connections will be signalled in OnAccept.

[MikeAThon]

Originally posted by Richard.J
Actually, this is depending on your socket. If it is a blocking socket, calling Accept() will then wait until there is an incoming connection. If it is nonblocking, Accept will return immediately and any incoming connections will be signalled in OnAccept.

I think I agree on blocking, but don't entirely agree on non-blocking.

For non-blocking, set the socket up to signal your program that there's a request that needs accepting, with a call to WSAAsyncSelect(...FD_ACCEPT...). Then, in your OnAccept() handler, call accept() and test the result against WSAEWOULDBLOCK. If there was not a block, then everthing is fine and the program can continue with communication on the newly-accepted socket. But if there's a block, then the program needs to sit back and wait for OnAccept to be called again.

-Mike