From: sean finney <seanius@seanius.net>
To: Ulrich Drepper <drepper@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: problem opening multiple pipes with pipe(2) in 2.4.1[78]
Date: Tue, 22 Oct 2002 00:39:25 -0400 [thread overview]
Message-ID: <20021022003925.A15745@sccs.swarthmore.edu> (raw)
In-Reply-To: <3DB4B517.1070906@redhat.com>; from drepper@redhat.com on Mon, Oct 21, 2002 at 07:16:55PM -0700
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On Mon, Oct 21, 2002 at 07:16:55PM -0700, Ulrich Drepper wrote:
> The fault is entirely yours. You're not allowed to look at errno unless
> a function, which is defined to modify error on failure, is reporting it
> failed. Both pipe() calls work just fine and errno has some random
> value which happens to be ESPIPE for you. Read the standard.
right. the perror() giving nonsensical results wasn't the cause of my
problem of course, i was just trying to use it to find out why the pipe
didn't seem to work. turns out that i missed the forest for the trees;
the pipe was being opened for writing from the wrong end...
(as a side note, the code in question was written on a solaris box, and
it seems to Just Work in the wrong direction there, go fig.)
thanks
--sean
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next prev parent reply other threads:[~2002-10-22 4:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-22 1:32 sean finney
2002-10-22 2:16 ` Ulrich Drepper
2002-10-22 4:39 ` sean finney [this message]
2002-10-22 12:43 ` Doug McNaught
2002-10-22 13:23 ` Alan Cox
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