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The attached patch fixes a problem with InstallXLogFileSegment()'s use

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of link() under Cygwin:

    http://archives.postgresql.org/pgsql-cygwin/2002-04/msg00072.php

Note that it appears that BeOS and Netware also have the above or
similar problem.

I have only verified that PostgreSQL builds under Cygwin with this
patch.
Since I cannot reproduce the problem, I cannot verify that the proposed
patch solves it.  Nevertheless, both Barry Pederson and David P.
Caldwell
attest that this patch solves the problem.  See the following for
details:

    http://archives.postgresql.org/pgsql-cygwin/2002-05/msg00043.php
    http://archives.postgresql.org/pgsql-cygwin/2002-05/msg00040.php

Jason Tishler
This commit is contained in:
Bruce Momjian 2002-06-07 21:47:45 +00:00
parent 31d9184239
commit 2f297a2fcf
1 changed files with 2 additions and 2 deletions
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4
src/backend/access/transam/xlog.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $Header: /cvsroot/pgsql/src/backend/access/transam/xlog.c,v 1.95 2002/05/17 01:19:16 tgl Exp $ * $Header: /cvsroot/pgsql/src/backend/access/transam/xlog.c,v 1.96 2002/06/07 21:47:45 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -1503,7 +1503,7 @@ InstallXLogFileSegment(uint32 log, uint32 seg, char *tmppath,
* overwrite an existing logfile. However, there shouldn't be one, so * overwrite an existing logfile. However, there shouldn't be one, so
* rename() is an acceptable substitute except for the truly paranoid. * rename() is an acceptable substitute except for the truly paranoid.
*/ */
#if !defined(__BEOS__) && !defined(N_PLAT_NLM) #if !defined(__BEOS__) && !defined(N_PLAT_NLM) && !defined(__CYGWIN__)
if (link(tmppath, path) < 0) if (link(tmppath, path) < 0)
elog(PANIC, "link from %s to %s (initialization of log file %u, segment %u) failed: %m", elog(PANIC, "link from %s to %s (initialization of log file %u, segment %u) failed: %m",
tmppath, path, log, seg); tmppath, path, log, seg);