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Viewing changes to src/port/open.c

Tags: upstream-8.4.0
Import upstream version 8.4.0

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src/port/open.c
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 *
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 * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
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 *
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 * $PostgreSQL: pgsql/src/port/open.c,v 1.27 2009/01/01 17:24:04 momjian Exp $
 
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 * $PostgreSQL: pgsql/src/port/open.c,v 1.28 2009/06/11 14:49:15 momjian Exp $
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 *
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 *-------------------------------------------------------------------------
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 */
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                                         ((fileFlags & O_WRONLY) ? GENERIC_WRITE : GENERIC_READ),
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        /* These flags allow concurrent rename/unlink */
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                                        (FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE),
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                                                &sa,
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                                                openFlagsToCreateFileFlags(fileFlags),
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                                                FILE_ATTRIBUTE_NORMAL |
 
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                                                   &sa,
 
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                                                   openFlagsToCreateFileFlags(fileFlags),
 
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                                                   FILE_ATTRIBUTE_NORMAL |
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                                         ((fileFlags & O_RANDOM) ? FILE_FLAG_RANDOM_ACCESS : 0) |
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                           ((fileFlags & O_SEQUENTIAL) ? FILE_FLAG_SEQUENTIAL_SCAN : 0) |
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                          ((fileFlags & _O_SHORT_LIVED) ? FILE_ATTRIBUTE_TEMPORARY : 0) |
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                                ((fileFlags & O_TEMPORARY) ? FILE_FLAG_DELETE_ON_CLOSE : 0) |
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                                          ((fileFlags & O_DIRECT) ? FILE_FLAG_NO_BUFFERING : 0) |
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                                                ((fileFlags & O_DSYNC) ? FILE_FLAG_WRITE_THROUGH : 0),
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                                                NULL)) == INVALID_HANDLE_VALUE)
 
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                                           ((fileFlags & O_DSYNC) ? FILE_FLAG_WRITE_THROUGH : 0),
 
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                                                   NULL)) == INVALID_HANDLE_VALUE)
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        {
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                /*
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                 * Sharing violation or locking error can indicate antivirus, backup
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                 * or similar software that's locking the file. Try again for 30 seconds
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                 * before giving up.
 
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                 * or similar software that's locking the file. Try again for 30
 
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                 * seconds before giving up.
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                 */
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                DWORD err = GetLastError();
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                if (err == ERROR_SHARING_VIOLATION || 
 
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                DWORD           err = GetLastError();
 
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                if (err == ERROR_SHARING_VIOLATION ||
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                        err == ERROR_LOCK_VIOLATION)
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                {
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                        pg_usleep(100000);
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#ifndef FRONTEND
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                        if (loops == 50)
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                                ereport(LOG,
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                                    (errmsg("could not open file \"%s\": %s", fileName, 
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                                          (err == ERROR_SHARING_VIOLATION)?_("sharing violation"):_("lock violation")),
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                                         errdetail("Continuing to retry for 30 seconds."),
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                                         errhint("You might have antivirus, backup, or similar software interfering with the database system.")));
 
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                                                (errmsg("could not open file \"%s\": %s", fileName,
 
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                                                                (err == ERROR_SHARING_VIOLATION) ? _("sharing violation") : _("lock violation")),
 
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                                                 errdetail("Continuing to retry for 30 seconds."),
 
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                                                 errhint("You might have antivirus, backup, or similar software interfering with the database system.")));
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#endif
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                        if (loops < 300)