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From: Russ Cox <rsc@swtch.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] thread confusion
Date: Wed, 21 Sep 2005 11:42:42 -0400	[thread overview]
Message-ID: <ee9e417a0509210842637ec1e2@mail.gmail.com> (raw)
In-Reply-To: <200509211505.j8LF5FQ00275@zamenhof.cs.utwente.nl>

> My essential problem seems to be to 'shutdown' this pending library call -
> it will not time out by itself -- if indeed it does not react
> to me closing the pipe, it will stay there forever.
> But maybe I did something wrong there.

You have to install a note handler, as Nemo said.
But leave the proc alone and figure out the pipe close
bug instead.  The most likely problem is that you haven't
actually closed the other side of the pipe completely.
For example, maybe you have forked a child who inherited
a copy of that fd, and that child is holding the pipe up.

Programming with notes or signals is asking for trouble.
Always.  I'm sorry that threadint/threadkill are in the
library.

Russ


  reply	other threads:[~2005-09-21 15:42 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-09-21 14:44 Fco. J. Ballesteros
2005-09-21 15:05 ` Axel Belinfante
2005-09-21 15:42   ` Russ Cox [this message]
2005-09-21 20:25     ` Axel Belinfante
2005-09-21 20:32       ` Axel Belinfante
2005-09-21 20:37       ` Russ Cox
2005-09-21 22:34         ` Axel Belinfante
2005-09-21 22:44           ` Russ Cox
2005-09-26 18:40       ` rog
2005-09-26 18:52         ` Russ Cox
2005-09-26 19:20           ` rog
2005-09-27 10:12         ` Axel Belinfante
  -- strict thread matches above, loose matches on Subject: below --
2005-09-21 15:48 Fco. J. Ballesteros
2005-09-21 13:53 Fco. J. Ballesteros
2005-09-21 14:32 ` Axel Belinfante
2005-09-21 13:25 Axel Belinfante

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