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Overview
Comment:Make use of the fdatasync() interface if the HAVE_FDATASYNC macro is true.
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SHA1: 694228e4632c2999efa47ecb49f679c177db02e5
User & Date: drh 2015-01-10 18:02:45
Context
2015-01-10
18:22
Add detection of the isnan() library function to the configure script. Make the code responsive to the HAVE_ISNAN configuration option. check-in: 46f3aba2 user: drh tags: trunk
18:02
Make use of the fdatasync() interface if the HAVE_FDATASYNC macro is true. check-in: 694228e4 user: drh tags: trunk
16:49
Improvements to compile-time-option hygiene. Use "#if OPTION" instead of "#ifdef OPTION" in cases where that makes sense, so that -DOPTION=0 will work. Add the "Have-Not" configuration in releasetest.tcl which disables all of the "HAVE_component" compile-time options. check-in: 9e92a5ed user: drh tags: trunk
Changes
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Changes to src/os_unix.c.

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int sqlite3_fullsync_count = 0;
#endif

/*
** We do not trust systems to provide a working fdatasync().  Some do.
** Others do no.  To be safe, we will stick with the (slightly slower)
** fsync(). If you know that your system does support fdatasync() correctly,
** then simply compile with -Dfdatasync=fdatasync
*/
#if !defined(fdatasync)
# define fdatasync fsync
#endif

/*
** Define HAVE_FULLFSYNC to 0 or 1 depending on whether or not
** the F_FULLFSYNC macro is defined.  F_FULLFSYNC is currently
** only available on Mac OS X.  But that could change.







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int sqlite3_fullsync_count = 0;
#endif

/*
** We do not trust systems to provide a working fdatasync().  Some do.
** Others do no.  To be safe, we will stick with the (slightly slower)
** fsync(). If you know that your system does support fdatasync() correctly,
** then simply compile with -Dfdatasync=fdatasync or -DHAVE_FDATASYNC
*/
#if !defined(fdatasync) && !HAVE_FDATASYNC
# define fdatasync fsync
#endif

/*
** Define HAVE_FULLFSYNC to 0 or 1 depending on whether or not
** the F_FULLFSYNC macro is defined.  F_FULLFSYNC is currently
** only available on Mac OS X.  But that could change.