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Message-ID: <5485B98D.4010603@skarnet.org>
Date: Mon, 08 Dec 2014 15:45:33 +0100
From: Laurent Bercot <ska-dietlibc@...rnet.org>
To: musl@...ts.openwall.com
Subject: Re: [RFC] EINTR and PC loser-ing library design
On 08/12/2014 15:32, Rich Felker wrote:
> The system call restarts (or, formally, it's as if it were never
> interrupted; EINTR only applies to signal _handlers_).
Could you please provide a pointer to the specification that
guarantees this ? I've never been able to find a normative text that
ensures you will never get EINTR unless you explicitly install a
signal handler without SA_RESTART.
>> And that happens all the time in asynchronous event loops where you
>> handle signals with a self-pipe. ;)
>
> Only if you have installed interrupting signal handlers.
Which basically means any signal except SIGCHLD.
--
Laurent
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