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 Message-ID: <Pine.GSO.4.10.10203060727580.16928-100000@orbit> In-Reply-To: <20020306093611.03B1E37B400@hub.freebsd.org>
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FreeBSD does not support queued signals (part of RT Posix) which is required for this. -Kip ========================================================================= For RAIDANT status see: http://cranford.eng.netapp.com:8080/cgi-bin/ant4/index.cgi To submit RAIDANT test descriptions go to: http://web.netapp.com/engineering/projects/raidv2/testing/ Ontap on the web: http://web.netapp.com/engineering/projects/raidv2/testing/global/ 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 > > with "unsubscribe freebsd-hackers" in the body of the message > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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