[Xapian-tickets] [Xapian] #288: Use F_FULLFSYNC ioctl where supported

[Xapian]

#288: Use F_FULLFSYNC ioctl where supported
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 Reporter:  richard        |       Owner:  olly    
     Type:  defect         |      Status:  new     
 Priority:  normal         |   Milestone:          
Component:  Backend-Chert  |     Version:  SVN HEAD
 Severity:  normal         |    Keywords:          
Blockedby:                 |    Platform:  All     
 Blocking:                 |  
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 I've recently noticed that, when performing an fsync, sqlite and mysql use
 a special ioctl on OS X which makes an effort to ensure that the disk's
 internal write buffers are flushed to the platters.  Perhaps we should be
 using this ioctl too.

 http://lists.apple.com/archives/darwin-dev/2005/Feb/msg00072.html
 has some details about why this is needed.

 http://www.sqlite.org/cvstrac/fileview?f=sqlite/src/os_unix.c&v=1.195
 contains the sqlite implementation; search for the "full_fsync" function.

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Ticket URL: <http://trac.xapian.org/ticket/288>
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