FreeTDS Development Group

["ZIGLIO, Frediano, VF-IT" <Frediano.Ziglio AT vodafone.com>]

> 
> > I don't have FreeBSD to test with. What I did is to search 
> on internet
> > an option similar to TCP_CORK. Some mails (4 year ago!!) 
> reported that
> > newer behavior of TCP_NO_PUSH was equal to TCP_CORK. Today 
> I tried to
> > search again and I found a patch that add support for 
> TCP_CORK even to
> > FreeBSD... I don't know if this patch has been committed.
> 
> > You tested that TCP_NOPUSH under FreeBSD 5.0 do not work 
> correctly so
> > would be so kind to try with
> 
> > /* Try to use TCP_CORK on *BSD */
> > #elif (defined(__FreeBSD__) || defined(__GNU_FreeBSD__) ||
> > defined(__OpenBSD__)) && defined(TCP_CORK)
> > #define USE_CORK 1
> 
> Hi Freddy,
> 
> That works fine on my FreeBSD 5.0 system.
> 
> FWIW here are the avaliable options from tcp.h
> 
> #define TCP_NODELAY     0x01    /* don't delay send to 
> coalesce packets */
> #if __BSD_VISIBLE
> #define TCP_MAXSEG      0x02    /* set maximum segment size */
> #define TCP_NOPUSH      0x04    /* don't push last block of write */
> #define TCP_NOOPT       0x08    /* don't use TCP options */
> #endif
> 

So I think is working using NODELAY option... do you know a way to
"emulate" linux CORK behavior, that is coalesce packets and flush them
when needed ??

freddy77