Date: Wed, 3 Jun 2009 15:35:54 +0300 From: Vlad Galu <dudu@dudu.ro> To: Kostik Belousov <kostikbel@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: poll()-ing a pipe descriptor, watching for POLLHUP Message-ID: <ad79ad6b0906030535o4b1a959ev6bc2b34af4e7304e@mail.gmail.com> In-Reply-To: <20090603123208.GK1927@deviant.kiev.zoral.com.ua> References: <ad79ad6b0906030515k2e41f4b9t25f752af8ef3866c@mail.gmail.com> <20090603123208.GK1927@deviant.kiev.zoral.com.ua>
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On Wed, Jun 3, 2009 at 3:32 PM, Kostik Belousov <kostikbel@gmail.com> wrote: > 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. > Aaarhg! You're right! Sorry for the noise!
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