database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-28 23:42:10 +03:00
Code Activity

Add support for wal_fsync_writethrough for Darwin, and restructure the

Browse Source 
code to better handle writethrough.

Chris Campbell
This commit is contained in:
Bruce Momjian
2005-05-20 14:53:26 +00:00
parent e9b33ed6cd
commit 6dc7760ac3
7 changed files with 80 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
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 1.115 2004/12/31 22:00:51 pgsql Exp $
* $PostgreSQL: pgsql/src/backend/storage/file/fd.c,v 1.116 2005/05/20 14:53:26 momjian Exp $
*
* NOTES:
*
@ -232,10 +232,26 @@ static void RemovePgTempFilesInDir(const char *tmpdirname);
/*
* pg_fsync --- same as fsync except does nothing if enableFsync is off
* pg_fsync --- do fsync with or without writethrough
*/
int
pg_fsync(int fd)
{
#ifndef HAVE_FSYNC_WRITETHROUGH_ONLY
if (sync_method != SYNC_METHOD_FSYNC_WRITETHROUGH)
return pg_fsync_no_writethrough(fd);
else
#endif
return pg_fsync_writethrough(fd);
}
/*
* pg_fsync_no_writethrough --- same as fsync except does nothing if
* enableFsync is off
*/
int
pg_fsync_no_writethrough(int fd)
{
if (enableFsync)
return fsync(fd);
@ -243,6 +259,24 @@ pg_fsync(int fd)
return 0;
}
/*
* pg_fsync_writethrough
*/
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;
#else
return -1;
#endif
else
return 0;
}
/*
* pg_fdatasync --- same as fdatasync except does nothing if enableFsync is off
*