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Add functions pg_start_backup, pg_stop_backup to create backup label

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and history files as per recent discussion.  While at it, remove
pg_terminate_backend, since we have decided we do not have time during
this release cycle to address the reliability concerns it creates.
Split the 'Miscellaneous Functions' documentation section into
'System Information Functions' and 'System Administration Functions',
which hopefully will draw the eyes of those looking for such things.
This commit is contained in:
Tom Lane
2004-08-03 20:32:36 +00:00
parent a83c45c4c6
commit 58c41712d5
12 changed files with 1352 additions and 949 deletions
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17
src/include/access/xlog_internal.h
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@@ -11,12 +11,13 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/xlog_internal.h,v 1.1 2004/07/21 22:31:25 tgl Exp $
* $PostgreSQL: pgsql/src/include/access/xlog_internal.h,v 1.2 2004/08/03 20:32:34 tgl Exp $
*/
#ifndef XLOG_INTERNAL_H
#define XLOG_INTERNAL_H
#include "access/xlog.h"
#include "fmgr.h"
#include "storage/block.h"
#include "storage/relfilenode.h"
@@ -177,7 +178,7 @@ typedef XLogLongPageHeaderData *XLogLongPageHeader;
* These macros encapsulate knowledge about the exact layout of XLog file
* names, timeline history file names, and archive-status file names.
*/
#define MAXFNAMELEN 32
#define MAXFNAMELEN 64
#define XLogFileName(fname, tli, log, seg) \
snprintf(fname, MAXFNAMELEN, "%08X%08X%08X", tli, log, seg)
@@ -194,6 +195,12 @@ typedef XLogLongPageHeaderData *XLogLongPageHeader;
#define StatusFilePath(path, xlog, suffix) \
snprintf(path, MAXPGPATH, "%s/archive_status/%s%s", XLogDir, xlog, suffix)
#define BackupHistoryFileName(fname, tli, log, seg, offset) \
snprintf(fname, MAXFNAMELEN, "%08X%08X%08X.%08X.backup", tli, log, seg, offset)
#define BackupHistoryFilePath(path, tli, log, seg, offset) \
snprintf(path, MAXPGPATH, "%s/%08X%08X%08X.%08X.backup", XLogDir, tli, log, seg, offset)
extern char XLogDir[MAXPGPATH];
/*
@@ -221,4 +228,10 @@ typedef struct RmgrData
extern const RmgrData RmgrTable[];
/*
* These aren't in xlog.h because I'd rather not include fmgr.h there.
*/
extern Datum pg_start_backup(PG_FUNCTION_ARGS);
extern Datum pg_stop_backup(PG_FUNCTION_ARGS);
#endif /* XLOG_INTERNAL_H */