From: Eli Zaretskii <eliz@gnu.org>
To: Mark Kettenis <mark.kettenis@xs4all.nl>
Cc: msnyder@redhat.com, gdb-patches@sources.redhat.com, drow@false.org
Subject: Re: [RFA] Linux Checkpoints, take 3
Date: Tue, 27 Dec 2005 15:40:00 -0000 [thread overview]
Message-ID: <ud5jjznxb.fsf@gnu.org> (raw)
In-Reply-To: <200512261533.jBQFXCwt001363@elgar.sibelius.xs4all.nl> (message from Mark Kettenis on Mon, 26 Dec 2005 16:33:12 +0100 (CET))
> Date: Mon, 26 Dec 2005 16:33:12 +0100 (CET)
> From: Mark Kettenis <mark.kettenis@xs4all.nl>
> CC: gdb-patches@sources.redhat.com, drow@false.org
>
> > + /* Now save the 'state' (file position) of all open file descriptors.
> > + Unfortunately fork does not take care of that for us... */
>
> Hmm, fork(2) clones it file descroptors but both file descriptors
> refer to the same open file description. Nasty. Wonder whether it'd
> be possible to copy the open file descriptorions too.
`fork' does the equivalent of `dup', AFAIK, so it cannot copy the
system file table entry to which those descriptors point. If it did
copy the entries, redirection would stop working.
next prev parent reply other threads:[~2005-12-26 18:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-24 16:32 Michael Snyder
2005-12-24 17:02 ` Eli Zaretskii
2005-12-26 18:58 ` Daniel Jacobowitz
2005-12-26 19:27 ` Eli Zaretskii
2005-12-27 15:38 ` Mark Kettenis
2005-12-27 15:40 ` Eli Zaretskii [this message]
2006-01-03 23:54 ` Michael Snyder
2006-01-04 19:16 ` Mark Kettenis
2006-01-04 19:36 ` Michael Snyder
2006-01-04 1:49 ` Michael Snyder
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ud5jjznxb.fsf@gnu.org \
--to=eliz@gnu.org \
--cc=drow@false.org \
--cc=gdb-patches@sources.redhat.com \
--cc=mark.kettenis@xs4all.nl \
--cc=msnyder@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox