Date: Mon, 10 Mar 2014 14:16:33 +0100 From: Baptiste Daroussin <bapt@FreeBSD.org> To: hackers@FreeBSD.org Cc: desrt@desrt.ca Subject: [CFR] Kevent timer improvements Message-ID: <20140310131632.GI6900@ithaqua.etoilebsd.net>
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--uJWb33pM2TcUAXIl Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi all, A glib developer pointed me to some of the improvements Apple has done on kqueue(2), some of those improvements are used or will be used by glib in the near futur, plus add new one. I decided to implement part of it and here is the first patch about it: http://people.freebsd.org/~bapt/kevent.diff I will update the manpages accordingly as well: Basically this patch added the following to the EVFILT_TIMER: NOTE_SECONDS data is in seconds NOTE_USECONDS data is in microseconds NOTE_NSECONDS data is in nanoseconds It also added a NOTE_MONOTONIC which consider the data as an absolute time since the boot. (It is different from NOTE_ABSOLUTE extension from apple, so I decided to use NOTE_MONOTONIC to avoid collision). Note that NOTE_MONOTONIC is right only valid as EV_ONESHOT as the is the behaviour that make sense to me concerning this kind of event, should it be different? in that case what behaviour would be expected here? I do plan to add kevent64 support compatible with apple implementation later, as using NOTE_MONOTONIC without 64bit support is not useful very long :) Please keep Ryan in CC I don't think he is subcribed to that least and he is the one from glib project asking for those improvements. regards, Bapt --uJWb33pM2TcUAXIl Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEUEARECAAYFAlMduzAACgkQ8kTtMUmk6EyAxACXdvQo8c5rOzznirJL+qGuu7In vACgmnQ/db4THqo/GFtzDHGThnR6gUE= =cBNm -----END PGP SIGNATURE----- --uJWb33pM2TcUAXIl--
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