poll()-ing a pipe descriptor, watching for POLLHUP

Vlad Galu dudu at dudu.ro
Wed Jun 3 12:36:17 UTC 2009

On Wed, Jun 3, 2009 at 3:32 PM, Kostik Belousov <kostikbel at 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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