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Fix fsync code to test whether F_FULLFSYNC is available, instead of

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assuming it always is on Darwin.  Per report from Neil Brandt.
This commit is contained in:
Tom Lane
2006-01-17 23:52:31 +00:00
parent f3dda5be89
commit 558bc2584d
5 changed files with 90 additions and 4 deletions
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8
src/backend/storage/file/fd.c
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/file/fd.c,v 1.124 2005/12/08 15:38:29 tgl Exp $
* $PostgreSQL: pgsql/src/backend/storage/file/fd.c,v 1.125 2006/01/17 23:52:31 tgl Exp $
*
* NOTES:
*
@ -265,13 +265,15 @@ int
pg_fsync_writethrough(int fd)
{
if (enableFsync)
{
#ifdef WIN32
return _commit(fd);
#elif defined(__darwin__)
return (fcntl(fd, F_FULLFSYNC, 0) == -1) ? -1 : 0;
#elif defined(F_FULLFSYNC)
return (fcntl(fd, F_FULLFSYNC, 0) == -1) ? -1 : 0;
#else
return -1;
#endif
}
else
return 0;
}

4
src/include/pg_config.h.in
View File

@ -72,6 +72,10 @@
don't. */
#undef HAVE_DECL_FDATASYNC
/* Define to 1 if you have the declaration of `F_FULLFSYNC', and to 0 if you
don't. */
#undef HAVE_DECL_F_FULLFSYNC
/* Define to 1 if you have the declaration of `snprintf', and to 0 if you
don't. */
#undef HAVE_DECL_SNPRINTF

2
src/include/port/darwin.h
View File

@ -1,3 +1,5 @@
#define __darwin__ 1
#if HAVE_DECL_F_FULLFSYNC /* not present before OS X 10.3 */
#define HAVE_FSYNC_WRITETHROUGH
#endif