From owner-freebsd-hackers  Wed Mar  6  7:29:48 2002
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Date: Wed, 6 Mar 2002 07:28:47 -0800 (PST)
From: Kip Macy <kmacy@netapp.com>
To: "Peter J. Blok" <Peter.Blok@inter.NL.net>
Cc: Tony Arcieri <tarcieri@atmos.colostate.edu>,
	freebsd-hackers@FreeBSD.ORG
Subject: Re: aio_read() oddness
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FreeBSD does not support queued signals (part of RT Posix) which is required for
this.

				-Kip

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On Wed, 6 Mar 2002, Peter J. Blok wrote:

> On Wednesday 06 March 2002 07:03, Tony Arcieri wrote:
> > I'm not currently subscribed to this list, so please cc replies to me.
> >
> > I was playing around with aio_read() and ran into some seemingly aberrant
> > behavior, although not with aio_read() itself, but the resulting signal.
> > Within struct aiocb I was setting:
> >
> > aio_sigevent.sigev_notify = SIGEV_SIGNAL;
> > aio_sigevent.sigev_value.sigval_int = 42;
> > iocb.aio_sigevent.sigev_signo = SIGUSR1;
> >
> > Then in the sigaction structure:
> > sa_flags = SA_SIGINFO;
> >
> > Upon completion of the requested read, a signal is sent.  Within the
> > siginfo structure, si_signo is set properly.
> >
> > However, si_value.sigval_int is zero.  Is this just not implemented
> > completely yet or am I missing something?
> I have a set of aio test tools and it indeed seems it is not implemenented. I 
> am getting a zero value too.
> >
> > Tony Arcieri
> >
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
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> 
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