Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sources.redhat.com/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Date:	Thu, 10 Oct 2002 10:36:00 +0400
From:	egor duda <deo AT logos-m DOT ru>
Reply-To:	egor duda <cygwin AT cygwin DOT com>
Organization:	deo
X-Priority:	3 (Normal)
Message-ID:	<46490158340.20021010103600@logos-m.ru>
To:	"Chris" <mtp500 AT excite DOT com>
CC:	cygwin AT cygwin DOT com
Subject:	Re: Named pipes problem
In-Reply-To:	<ao2e5f$77d$1@main.gmane.org>
References:	<ao2e5f$77d$1 AT main DOT gmane DOT org>
MIME-Version:	1.0

Hi!

Thursday, 10 October, 2002 Chris mtp500 AT excite DOT com wrote:

C> I have recently installed Cygwin (version 1.3.12-2) on Windows 2k (SP2) and
C> have been trying to evaluate by developing some small programs. One of these
C> uses named pipes. However none of the named pipes functions seem to work -
C> all return -1.

perror() is your friend.

C> Example:

C>  retcode = unlink ("aPipe");
    if (retcode) perror("unlink");
C>  retcode = mknod ("aPipe", S_IFIFO, 0);
    if (retcode) perror("mknod");
C>  retcode = chmod ("aPipe", 0660);
    if (retcode) perror("chmod");
C>  fd = open ("aPipe", O_RDONLY);
    if (fd < 0) perror("open");

C> return code for all functions is -1.

prints:

unlink: No such file or directory
mknod: Function not implemented
chmod: No such file or directory
open: No such file or directory

which should be sufficient to answer your question.

Egor.            mailto:deo AT logos-m DOT ru ICQ 5165414 FidoNet 2:5020/496.19


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -