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Re: [bug-grep] [patch] getting '--devices=skip' to work

From: Paul Jarc
Subject: Re: [bug-grep] [patch] getting '--devices=skip' to work
Date: Fri, 19 Nov 2004 13:28:48 -0500
User-agent: Gnus/5.110003 (No Gnus v0.3) Emacs/21.3 (gnu/linux)

Tim Waugh <address@hidden> wrote:
> I *think* it was that read() would set errno to EAGAIN unless the
> requested data was actually in memory: i.e. it wouldn't necessarily
> take steps to read from disk.

Ok, so changing the descriptor back to blocking mode after opening
would probably work.

> I believe it was still within POSIX, the idea being to actually
> support O_NONBLOCK properly for regular files.

That sounds potentially useful.  Programs will just have to make sure
they ask for what they really want.


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