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Change Win32 O_SYNC method to O_DSYNC because that is what the method

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currently does.  This is now the default Win32 wal sync method because
we perfer o_datasync to fsync.

Also, change Win32 fsync to a new wal sync method called
fsync_writethrough because that is the behavior of _commit, which is
what is used for fsync on Win32.

Backpatch to 8.0.X.
This commit is contained in:
Bruce Momjian
2005-03-24 04:36:20 +00:00
parent 0275b3f783
commit b1f57d88f5
5 changed files with 26 additions and 9 deletions
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6
src/port/open.c
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@ -6,7 +6,7 @@
*
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/port/open.c,v 1.8 2005/02/27 00:53:29 momjian Exp $
* $PostgreSQL: pgsql/src/port/open.c,v 1.9 2005/03/24 04:36:20 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -63,7 +63,7 @@ win32_open(const char *fileName, int fileFlags,...)
/* Check that we can handle the request */
assert((fileFlags & ((O_RDONLY | O_WRONLY | O_RDWR) | O_APPEND |
(O_RANDOM | O_SEQUENTIAL | O_TEMPORARY) |
_O_SHORT_LIVED | O_SYNC |
_O_SHORT_LIVED | O_DSYNC |
(O_CREAT | O_TRUNC | O_EXCL) | (O_TEXT | O_BINARY))) == fileFlags);
sa.nLength = sizeof(sa);
@ -83,7 +83,7 @@ win32_open(const char *fileName, int fileFlags,...)
((fileFlags & O_SEQUENTIAL) ? FILE_FLAG_SEQUENTIAL_SCAN : 0) |
((fileFlags & _O_SHORT_LIVED) ? FILE_ATTRIBUTE_TEMPORARY : 0) |
((fileFlags & O_TEMPORARY) ? FILE_FLAG_DELETE_ON_CLOSE : 0)|
((fileFlags & O_SYNC) ? FILE_FLAG_WRITE_THROUGH : 0),
((fileFlags & O_DSYNC) ? FILE_FLAG_WRITE_THROUGH : 0),
NULL)) == INVALID_HANDLE_VALUE)
{
switch (GetLastError())