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Add O_DIRECT support on Windows.

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ITAGAKI Takahiro
This commit is contained in:
Magnus Hagander 2007-04-13 10:30:30 +00:00
parent 85bbf01e08
commit 15ebfeec2d
2 changed files with 6 additions and 5 deletions
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3
src/include/port.h
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@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/port.h,v 1.110 2007/02/07 00:28:55 petere Exp $
* $PostgreSQL: pgsql/src/include/port.h,v 1.111 2007/04/13 10:30:30 mha Exp $
*
*-------------------------------------------------------------------------
*/
@ -277,6 +277,7 @@ extern bool rmtree(char *path, bool rmtopdir);
/* open() and fopen() replacements to allow deletion of open files and
* passing of other special options.
*/
#define O_DIRECT 0x80000000
extern int pgwin32_open(const char *, int,...);
extern FILE *pgwin32_fopen(const char *, const char *);

8
src/port/open.c
View File

@ -6,7 +6,7 @@
*
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/port/open.c,v 1.19 2007/02/13 02:06:22 momjian Exp $
* $PostgreSQL: pgsql/src/port/open.c,v 1.20 2007/04/13 10:30:30 mha Exp $
*
*-------------------------------------------------------------------------
*/
@ -53,7 +53,6 @@ openFlagsToCreateFileFlags(int openFlags)
/*
* - file attribute setting, based on fileMode?
* - handle other flags? (eg FILE_FLAG_NO_BUFFERING/FILE_FLAG_WRITE_THROUGH)
*/
int
pgwin32_open(const char *fileName, int fileFlags,...)
@ -65,7 +64,7 @@ pgwin32_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_DSYNC |
_O_SHORT_LIVED | O_DSYNC | O_DIRECT |
(O_CREAT | O_TRUNC | O_EXCL) | (O_TEXT | O_BINARY))) == fileFlags);
sa.nLength = sizeof(sa);
@ -85,7 +84,8 @@ pgwin32_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_DSYNC) ? FILE_FLAG_WRITE_THROUGH : 0),
((fileFlags & O_DIRECT) ? FILE_FLAG_NO_BUFFERING : 0) |
((fileFlags & O_DSYNC) ? FILE_FLAG_WRITE_THROUGH : 0),
NULL)) == INVALID_HANDLE_VALUE)
{
switch (GetLastError())