From 1bb86d6f154da45464eb8b009c298dccd1cb3dab Mon Sep 17 00:00:00 2001
From: Pieter Wuille <sipa@ulyssis.org>
Date: Tue, 20 Aug 2013 15:11:55 +0200
Subject: [PATCH] Squashed 'src/leveldb/' changes from a02ddf9..be1b0ff

be1b0ff On Mac OS X fsync does not guarantee write to disk. Use fcntl F_FULLFSYNC instead.

git-subtree-dir: src/leveldb
git-subtree-split: be1b0ff1fcd6ad820a7fd111ac671fb51cc68001
---
 port/port_posix.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/port/port_posix.h b/port/port_posix.h
index f2b89bffb..21c845e21 100644
--- a/port/port_posix.h
+++ b/port/port_posix.h
@@ -62,12 +62,16 @@
 #define fflush_unlocked fflush
 #endif
 
-#if defined(OS_MACOSX) || defined(OS_FREEBSD) ||\
+#if defined(OS_FREEBSD) ||\
     defined(OS_OPENBSD) || defined(OS_DRAGONFLYBSD)
 // Use fsync() on platforms without fdatasync()
 #define fdatasync fsync
 #endif
 
+#if defined(OS_MACOSX)
+#define fdatasync(fd) fcntl(fd, F_FULLFSYNC, 0)
+#endif
+
 #if defined(OS_ANDROID) && __ANDROID_API__ < 9
 // fdatasync() was only introduced in API level 9 on Android. Use fsync()
 // when targetting older platforms.