Commit 51cae387 authored by unknown's avatar unknown
Browse files

os0file.c: 

  Use the fcntl() file flush method on OS X; Apple disabled fsync() for internal disk drives, which caused corruption in power outages; the patch was recommended by an Apple engineer


innobase/os/os0file.c:
  Use the fcntl() file flush method on OS X; Apple disabled fsync() for internal disk drives, which caused corruption in power outages; the patch was recommended by an Apple engineer
parent 6f2f0d5c

innobase/os/os0file.c

+15 −1
Original line number Diff line number Diff line
@@ -1763,7 +1763,21 @@ os_file_flush( 
#else

	int	ret;



#ifdef HAVE_FDATASYNC

#ifdef HAVE_DARWIN_THREADS

	/* Apple has disabled fsync() for internal disk drives in OS X. That

	caused corruption for a user when he tested a power outage. Let us in

	OS X use a nonstandard flush method recommended by an Apple

	engineer. */



	ret = fcntl(file, F_FULLFSYNC, NULL);



	if (ret) {

		/* If we are not on a file system that supports this, then

		fall back to a plain fsync. */ 



		ret = fsync(file);

	}

#elif HAVE_FDATASYNC

	ret = fdatasync(file);

#else

/*	fprintf(stderr, "Flushing to file %p\n", file); */