linux-kernel - Re: [patch 2/5] signalfd v2

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Message-ID: <Pine.LNX.4.64.0703081138120.7515@alien.or.mcafeemobile.com>
Date:	Thu, 8 Mar 2007 11:40:10 -0800 (PST)
From:	Davide Libenzi <davidel@...ilserver.org>
To:	Avi Kivity <avi@...o.co.il>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"David M. Lloyd" <dmlloyd@...rg.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [patch 2/5] signalfd v2 - signalfd core ...

On Thu, 8 Mar 2007, Avi Kivity wrote:

> Davide Libenzi wrote:
> > So, to cut it short, I can do the pseudo-siginfo read(2), but I don't like
> > it too much (little, actually). The siginfo, as bad as it is, is a standard
> > used in many POSIX APIs (hence even in kernel), and IMO if we want to send
> > that back, a struct siginfo should be.
> >   
> 
> You can send the data in the 32/64 neutral format, and have glibc convert it
> to a siginfo, and everybody's happy.

Except Uli :)
The problem with the siginfo is that it is a brain-dead structure with 
unions and data dependent on types (and pointers). Pretty fugly.



- Davide


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