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From: Peter Pentchev <roam@ringlet.net>
To: tuhs@minnie.tuhs.org
Subject: Re: [TUHS] sockets (was Re: First appearance of named pipes)
Date: Mon, 23 Mar 2020 10:49:43 +0200
Message-ID: <20200323084943.GA341861@straylight.m.ringlet.net> (raw)
In-Reply-To: <5dbf2153-5993-242a-5ba9-54b49a38569e@spamtrap.tnetconsulting.net>

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On Mon, Mar 09, 2020 at 05:22:57PM -0600, Grant Taylor via TUHS wrote:
> On 3/8/20 9:13 AM, Derek Fawcus wrote:
> > Now what would have been useful is a way to have distinct fd's for the
> > local read and write end of (e.g.) a TCP socket - such that one
> > direction could be closed w/o closing the other.
> 
> I believe that this can be done, now.  At least I've read that it's possible
> for one end to close (FIN) a TCP connection without the other end also
> closing.  Thus you end up with the one-way data flow that is still ACKed the
> way that TCP does.

Yep, in the next sentence Derek mentioned "dispense with shutdown",
meaning the shutdown(2) syscall that does exactly that. What he meant
was, wouldn't it be nice to be able to do that with close(2) instead?

G'luck,
Peter

-- 
Peter Pentchev  roam@{ringlet.net,debian.org,FreeBSD.org} pp@storpool.com
PGP key:        http://people.FreeBSD.org/~roam/roam.key.asc
Key fingerprint 2EE7 A7A5 17FC 124C F115  C354 651E EFB0 2527 DF13

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  parent reply index

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-06 22:44 [TUHS] First appearance of named pipes Noel Chiappa
2020-03-07 12:17 ` Paul Ruizendaal
2020-03-07 13:29   ` Clem Cole
2020-03-07 16:39   ` Derek Fawcus
2020-03-08  2:36     ` Rob Pike
2020-03-08  2:47       ` Larry McVoy
2020-03-08 13:07         ` Ralph Corderoy
2020-03-08 13:25           ` arnold
2020-03-08  3:06       ` Dave Horsfall
2020-03-08  7:16       ` arnold
2020-03-08 15:13       ` [TUHS] sockets (was Re: First appearance of named pipes) Derek Fawcus
2020-03-09 23:22         ` Grant Taylor via TUHS
2020-03-09 23:44           ` Larry McVoy
2020-03-23  8:49           ` Peter Pentchev [this message]
2020-03-24  9:47             ` Derek Fawcus
2020-03-25 23:25               ` Grant Taylor via TUHS
2020-03-25 23:47                 ` Richard Salz
2020-03-26  0:11                   ` Grant Taylor via TUHS
2020-03-26  0:18                     ` Richard Salz
2020-03-26  1:08                       ` Grant Taylor via TUHS
2020-03-26  2:38                         ` Dave Horsfall
2020-03-26  3:08                           ` Rob Pike
2020-03-26  3:43                             ` George Michaelson
2020-03-26  4:11                           ` Grant Taylor via TUHS
2020-03-28 11:12                           ` Peter Pentchev
2020-03-28 11:14                             ` Peter Pentchev
2020-03-28 16:03                               ` Steffen Nurpmeso
2020-03-26  1:20                       ` Tony Finch
2020-03-27 10:51                   ` Derek Fawcus
2020-03-09 23:22 ` [TUHS] First appearance of named pipes Grant Taylor via TUHS
2020-03-10  7:29   ` arnold
2020-03-11  2:47     ` Grant Taylor via TUHS
2020-03-11  7:02       ` arnold
2020-03-10 13:49   ` Chet Ramey
2020-03-10 20:26     ` Dave Horsfall
2020-03-10 20:37       ` Chet Ramey
2020-03-11  2:51       ` Grant Taylor via TUHS
2020-03-08 23:09 [TUHS] sockets (was Re: First appearance of named pipes) Norman Wilson
2020-03-09 17:09 ` Tony Finch

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