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Date:      Wed, 17 Sep 2008 09:34:10 -0600
From:      John Hein <jhein@timing.com>
To:        "Poul-Henning Kamp" <phk@phk.freebsd.dk>
Cc:        arch@freebsd.org, Brooks Davis <brooks@freebsd.org>
Subject:   Re: 64 bit time_t 
Message-ID:  <18641.9074.499346.988999@gromit.timing.com>
In-Reply-To: <75968.1221600374@critter.freebsd.dk>
References:  <20080916211646.GA35778@lor.one-eyed-alien.net> <75968.1221600374@critter.freebsd.dk>

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Poul-Henning Kamp wrote at 21:26 +0000 on Sep 16, 2008:
 > In message <20080916211646.GA35778@lor.one-eyed-alien.net>, Brooks Davis writes
 > :
 > >
 > >--PEIAKu/WMn1b1Hv9
 > >Content-Type: text/plain; charset=us-ascii
 > >Content-Disposition: inline
 > >
 > >On Tue, Sep 16, 2008 at 02:17:16PM -0600, John Hein wrote:
 > >> Other than recompiling for -current users (and not being an MFC-able
 > >> change and possibly breaking a gazillion unfortunately written ports),
 > >> are their any other issues with switching to 64 bit time_t for i386?
 > >> I suppose compat libs are a bit dicey.
 > >
 > >Off hand: every syscall that takes a time_t or a structure containing
 > >a time_t would have to be reimplemented and a compatability version[...]
 > 
 > This is a pretty nasty piece of work because it also involves the
 > timespec and timeval structures which appear in ioctls, socket
 > options, socket messages and so on.

Okay.  Sounds "fun".

So for systems where we don't care about compatibility (where a
product is built from scratch and we don't have to worry about 3rd
party binary libs/programs), the problems mentioned by brooks & phk
disappear.

No one wants to play the performance or atomic access card?



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