Macro alignment cleanup.
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@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
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* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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*
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* $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.208 2005/07/08 04:07:26 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.209 2005/07/23 15:29:47 momjian Exp $
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*
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*
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*-------------------------------------------------------------------------
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*-------------------------------------------------------------------------
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*/
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*/
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@ -47,6 +47,15 @@
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#include "utils/relcache.h"
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#include "utils/relcache.h"
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/*
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* Becauase O_DIRECT bypasses the kernel buffers, and because we never
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* read those buffers except during crash recovery, it seems like
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* a win to use it in all cases.
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*/
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#ifdef O_DIRECT
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#define PG_O_DIRECT O_DIR(enableFsync ? (open_sync_bit | O_DIRECT) : 0)
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#else
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/*
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/*
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* This chunk of hackery attempts to determine which file sync methods
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* This chunk of hackery attempts to determine which file sync methods
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* are available on the current platform, and to choose an appropriate
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* are available on the current platform, and to choose an appropriate
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@ -54,40 +63,40 @@
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* configure determined whether fdatasync() is.
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* configure determined whether fdatasync() is.
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*/
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*/
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#if defined(O_SYNC)
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#if defined(O_SYNC)
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#define OPEN_SYNC_FLAG O_SYNC
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#define OPEN_SYNC_FLAG O_SYNC
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#else
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#else
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#if defined(O_FSYNC)
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#if defined(O_FSYNC)
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#define OPEN_SYNC_FLAG O_FSYNC
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#define OPEN_SYNC_FLAG O_FSYNC
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#endif
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#endif
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#endif
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#endif
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#if defined(O_DSYNC)
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#if defined(O_DSYNC)
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#if defined(OPEN_SYNC_FLAG)
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#if defined(OPEN_SYNC_FLAG)
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#if O_DSYNC != OPEN_SYNC_FLAG
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#if O_DSYNC != OPEN_SYNC_FLAG
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#define OPEN_DATASYNC_FLAG O_DSYNC
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#define OPEN_DATASYNC_FLAG O_DSYNC
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#endif
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#endif
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#else /* !defined(OPEN_SYNC_FLAG) */
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#else /* !defined(OPEN_SYNC_FLAG) */
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/* Win32 only has O_DSYNC */
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/* Win32 only has O_DSYNC */
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#define OPEN_DATASYNC_FLAG O_DSYNC
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#define OPEN_DATASYNC_FLAG O_DSYNC
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#endif
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#endif
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#endif
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#endif
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#if defined(OPEN_DATASYNC_FLAG)
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#if defined(OPEN_DATASYNC_FLAG)
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#define DEFAULT_SYNC_METHOD_STR "open_datasync"
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#define DEFAULT_SYNC_METHOD_STR "open_datasync"
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#define DEFAULT_SYNC_METHOD SYNC_METHOD_OPEN
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#define DEFAULT_SYNC_METHOD SYNC_METHOD_OPEN
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#define DEFAULT_SYNC_FLAGBIT OPEN_DATASYNC_FLAG
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#define DEFAULT_SYNC_FLAGBIT OPEN_DATASYNC_FLAG
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#elif defined(HAVE_FDATASYNC)
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#elif defined(HAVE_FDATASYNC)
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#define DEFAULT_SYNC_METHOD_STR "fdatasync"
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#define DEFAULT_SYNC_METHOD_STR "fdatasync"
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#define DEFAULT_SYNC_METHOD SYNC_METHOD_FDATASYNC
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#define DEFAULT_SYNC_METHOD SYNC_METHOD_FDATASYNC
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#define DEFAULT_SYNC_FLAGBIT 0
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#define DEFAULT_SYNC_FLAGBIT 0
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#elif !defined(HAVE_FSYNC_WRITETHROUGH_ONLY)
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#elif !defined(HAVE_FSYNC_WRITETHROUGH_ONLY)
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#define DEFAULT_SYNC_METHOD_STR "fsync"
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#define DEFAULT_SYNC_METHOD_STR "fsync"
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#define DEFAULT_SYNC_METHOD SYNC_METHOD_FSYNC
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#define DEFAULT_SYNC_METHOD SYNC_METHOD_FSYNC
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#define DEFAULT_SYNC_FLAGBIT 0
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#define DEFAULT_SYNC_FLAGBIT 0
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#else
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#else
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#define DEFAULT_SYNC_METHOD_STR "fsync_writethrough"
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#define DEFAULT_SYNC_METHOD_STR "fsync_writethrough"
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#define DEFAULT_SYNC_METHOD SYNC_METHOD_FSYNC_WRITETHROUGH
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#define DEFAULT_SYNC_METHOD SYNC_METHOD_FSYNC_WRITETHROUGH
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#define DEFAULT_SYNC_FLAGBIT 0
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#define DEFAULT_SYNC_FLAGBIT 0
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#endif
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#endif
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