Date: Wed, 06 Nov 1996 13:25:00 -0800 From: Amancio Hasty <hasty@rah.star-gate.com> To: Archie Cobbs <archie@whistle.com> Cc: jgreco@brasil.moneng.mei.com (Joe Greco), hannibal@cyberstation.net, hackers@freebsd.org Subject: Re: Limiting bandwidth on a socket? (SO_RCVBUF?) Message-ID: <199611062125.NAA11085@rah.star-gate.com> In-Reply-To: Your message of "Wed, 06 Nov 1996 12:46:15 PST." <199611062046.MAA08387@bubba.whistle.com>
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What about kernel modifications?
In a commercial environment it can be very beneficial to provide rate
control. QOS --- that ugly old OSI term or more recently reservation
bandwith services.
Amancio
>From The Desk Of Archie Cobbs :
>
> > > I'm trying to come up with some way to limit the amount of bandwidth on a
> > > socket, so I can have my mail and large files retrieve without slowing
> > > down a telnet session that much.
> > >
> > > [ ... ]
> > >
> > > Anyone know how to do this?
> >
> > int s, rval;
> >
> > s = socket(...);
> >
> > while ((rval = read(..., 1024)) > 0) {
> > sleep(1);
> > }
> >
> > if (rval < 0) {
> > perror(...);
> > }
>
> This also might be a good application for divert(4) sockets .. just
> stick in a daemon that throttles the I/O on whatever connections you
> want to throttle... basically, doing the same as above except your
> exiting applications don't have to be modified.
>
> -Archie
>
> ___________________________________________________________________________
> Archie Cobbs * Whistle Communications, Inc. * http://www.whistle.com
>
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