On 10/25/2011 04:32 PM, 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.
Yes, gnulib should be taught to make fsync() more useful on OS X.
Hmm I thought fsync() on both GNU/Linux and OS X were similar. I.E. flush the OS buffers. The OS X provided F_FULLFSYNC _in addition_ asks the device to drain its buffers. cheers, Pádraig.