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Fix things so that fopen's, not only open's, pass FILE_SHARE_DELETE

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and other special flags on Windows.  May fix intermittent 'Permission
denied' errors.  Magnus Hagander
This commit is contained in:
Tom Lane 2006-08-30 18:06:27 +00:00
parent f6d7ef08a7
commit 3a6e2ff08a
2 changed files with 35 additions and 5 deletions
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9
src/include/port.h
View File

@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/port.h,v 1.96 2006/08/18 15:47:08 momjian Exp $
* $PostgreSQL: pgsql/src/include/port.h,v 1.97 2006/08/30 18:06:27 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -264,12 +264,15 @@ extern bool rmtree(char *path, bool rmtopdir);
#if defined(WIN32) && !defined(__CYGWIN__)
/* open() replacement to allow delete of held files and passing
* of special options. */
/* open() and fopen() replacements to allow deletion of open files and
* passing of other special options.
*/
extern int pgwin32_open(const char *, int,...);
extern FILE *pgwin32_fopen(const char *, const char *);
#ifndef FRONTEND
#define open(a,b,c) pgwin32_open(a,b,c)
#define fopen(a,b) pgwin32_fopen(a,b)
#endif
#define popen(a,b) _popen(a,b)

31
src/port/open.c
View File

@ -6,7 +6,7 @@
*
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/port/open.c,v 1.13 2006/06/25 00:18:24 momjian Exp $
* $PostgreSQL: pgsql/src/port/open.c,v 1.14 2006/08/30 18:06:27 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -19,7 +19,6 @@
#include <fcntl.h>
#include <assert.h>
int pgwin32_open(const char *fileName, int fileFlags,...);
static int
openFlagsToCreateFileFlags(int openFlags)
@ -112,4 +111,32 @@ pgwin32_open(const char *fileName, int fileFlags,...)
return fd;
}
FILE *
pgwin32_fopen(const char *fileName, const char *mode)
{
int openmode = 0;
int fd;
if (strstr(mode, "r+"))
openmode |= O_RDWR;
else if (strchr(mode, 'r'))
openmode |= O_RDONLY;
if (strstr(mode, "w+"))
openmode |= O_RDWR | O_CREAT | O_TRUNC;
else if (strchr(mode, 'w'))
openmode |= O_WRONLY | O_CREAT | O_TRUNC;
if (strchr(mode, 'a'))
openmode |= O_WRONLY | O_APPEND;
if (strchr(mode, 'b'))
openmode |= O_BINARY;
if (strchr(mode, 't'))
openmode |= O_TEXT;
fd = pgwin32_open(fileName, openmode);
if (fd == -1)
return NULL;
return _fdopen(fd, mode);
}
#endif