Re: [PATCH] build: use gnulib fdatasync

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On Tue, Oct 25, 2011 at 09:32:13AM -0600, Eric Blake wrote:
> [adding bug-gnulib]
> 
> On 10/25/2011 03:44 AM, Jiri Denemark wrote:
> >On Mon, Oct 24, 2011 at 16:44:49 -0600, Eric Blake wrote:
> >>Commit 1726a73 hacked around MacOS' lack of fdatasync, since
> >>gnulib did not have it at the time.  But now that we use newer
> >>gnulib, we can avoid the hack.
> >>
> >>* bootstrap.conf (gnulib_modules): Add fdatasync.
> >>* configure.ac (AC_CHECK_FUNCS_ONCE): Drop our own check.
> >>---
> >>  bootstrap.conf |    1 +
> >>  configure.ac   |    5 +----
> >>  2 files changed, 2 insertions(+), 4 deletions(-)
> >
> >ACK
> >
> >BTW, are there any plans on enhancing gnulib fsync module to provide a
> >replacement for certain versions of OS X? Although they provide fsync, it
> >doesn't really sync anything and one needs to do some ioctl hackery to really
> >achieve what fsync should do.
> 
> Any quick pointers to example code using that ioctl?  Then again,
> I'll probably find them with a quick google search myself.

I learnt about the problem from

http://www.flamingspork.com/talks/2007/06/eat_my_data.odp

pages 100-119 are the "fun" part of the story


Daniel
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