wim.deprez+google

Hi Group,

for porting issues, I need to translate a fcntl(). In the original
*nix-code the following is used:

fcntl(sd, F_SETFL, O_NONBLOCK);

to make sd a non blocking socket. Now I was wondering if

// If iMode = 0, blocking is enabled;
// If iMode != 0, non-blocking mode is enabled.
int iMode = 1;
ioctlsocket(sd, FIONBIO, (u_long FAR*) &iMode)

contains the same behaviour for win32 systems.

Many kind greetings,

--wim

phil frisbie, jr.

I always use ioctl() on *nix, which has a direct correlation to ioctlsocket() on Windows.


If you declare iMode to be an unsigned long you will not need the cast...


--
Phil Frisbie, Jr.
Hawk Software
http://www.hawksoft.com

tejeswar_das

Yes, ioctlsocket() should do the trick.

u_long iMode = 1;
ioctlsocket(sd, FIONBIO, &iMode);

However, please make sure that you have not issued a
WSAAsyncSelect/WSAEventSelect on the socket. In that case, ioctlsocket
fails with WSAEINVAL.

Regards
Tejeswar Das

wim deprez

"Phil Frisbie, Jr." <phil@hawksoft.com> escribió en el mensaje
news:MivNc.4356$54.65719@typhoon.sonic.net...


ok, thanks for the tip, but I did not write the *nix-code

yeah, you're right :-) I just copied it blank from the MSDN-site (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/wi nsock/ioctlsocket_2.asp)

wim deprez

"Tejeswar Das" <tejeswar_das@hotmail.com> escribió en el mensaje
news:3d0ad12f.0407270909.27e3f03a@posting.google.c om...

ok, thanks :-)


yeah thanks, read it on msdn and no WSA*Select in the code, so I think this
ship can sail :-)

Many kind greetings and thanks everyone,

--wim