Date: Wed, 19 Dec 2012 13:04:42 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Bruce Evans <brde@optusnet.com.au> Cc: Davide Italiano <davide@FreeBSD.org>, Ian Lepore <freebsd@damnhippie.dyndns.org>, Alexander Motin <mav@FreeBSD.org>, phk@onelab2.iet.unipi.it, freebsd-current <freebsd-current@FreeBSD.org>, "freebsd-arch@freebsd.org" <freebsd-arch@FreeBSD.org> Subject: Re: API explosion (Re: [RFC/RFT] calloutng) Message-ID: <16439.1355922282@critter.freebsd.dk> In-Reply-To: <20121219221518.E1082@besplex.bde.org> References: <50CF88B9.6040004@FreeBSD.org> <20121218173643.GA94266@onelab2.iet.unipi.it> <50D0B00D.8090002@FreeBSD.org> <50D0E42B.6030605@FreeBSD.org> <20121218225823.GA96962@onelab2.iet.unipi.it> <1355873265.1198.183.camel@revolution.hippie.lan> <14604.1355910848@critter.freebsd.dk> <CACYV=-Eg542iHm9KfujPvCzZrA4TqepEBVA8RzT1YOHnCgfJnA@mail.gmail.com> <15882.1355914308@critter.freebsd.dk> <20121219221518.E1082@besplex.bde.org>
next in thread | previous in thread | raw e-mail | index | archive | help
-------- In message <20121219221518.E1082@besplex.bde.org>, Bruce Evans writes: >> With this format you can specify callouts 68 years into the future >> with quarter nanosecond resolution, and you can trivially and >> efficiently compare dur_t's with >> if (d1 < d2) > >This would make a better general format than timevals, timespecs and >of course bintimes :-). Except that for absolute timescales, we're running out of the 32 bits integer part. Bintimes is a necessary superset of the 32.32 which tries to work around the necessary but missing int96_t or int128_t[1]. Poul-Henning [1] A good addition to C would be a general multi-word integer type where you could ask for any int%d_t or uint%d_t you cared for, and have the compiler DTRT. In difference from using a multiword-library, this would still give these types their natural integer behaviour. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?16439.1355922282>