Date: Wed, 3 Jun 2009 15:32:08 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Vlad Galu <dudu@dudu.ro> Cc: freebsd-stable@freebsd.org Subject: Re: poll()-ing a pipe descriptor, watching for POLLHUP Message-ID: <20090603123208.GK1927@deviant.kiev.zoral.com.ua> In-Reply-To: <ad79ad6b0906030515k2e41f4b9t25f752af8ef3866c@mail.gmail.com> References: <ad79ad6b0906030515k2e41f4b9t25f752af8ef3866c@mail.gmail.com>
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[-- Attachment #1 --] On Wed, Jun 03, 2009 at 03:15:32PM +0300, Vlad Galu wrote: > Hello, > > Please take a look at the attached code. Shouldn't poll() get a > POLLHUP event when the child process exits, closing the write end of > the pipe? It seems that you code forgot to close the write end of the pipe in parent. Thus, pipe is referenced by another file descriptor from the parent process, and you do not get close event. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkombUgACgkQC3+MBN1Mb4iUXwCguGpFVwSoqdLGQTXPgREz6qQ9 dVIAn27VmRGfYLY7sU4d4th1rvWFhfD8 =c69w -----END PGP SIGNATURE-----
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