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Per Tom, do full reset on -x flag.

This commit is contained in:
Bruce Momjian 2002-01-10 18:08:29 +00:00
parent f6e603cffa
commit 872aad61ff
1 changed files with 26 additions and 42 deletions
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68
contrib/pg_resetxlog/pg_resetxlog.c
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@ -23,7 +23,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Header: /cvsroot/pgsql/contrib/pg_resetxlog/Attic/pg_resetxlog.c,v 1.11 2002/01/10 17:51:52 momjian Exp $
* $Header: /cvsroot/pgsql/contrib/pg_resetxlog/Attic/pg_resetxlog.c,v 1.12 2002/01/10 18:08:29 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -714,32 +714,30 @@ RewriteControlFile(TransactionId set_xid)
int fd;
char buffer[BLCKSZ]; /* need not be aligned */
if (set_xid == 0)
{
/*
* Adjust fields as needed to force an empty XLOG starting at the next
* available segment.
*/
newXlogId = ControlFile.logId;
newXlogSeg = ControlFile.logSeg;
/* be sure we wrap around correctly at end of a logfile */
NextLogSeg(newXlogId, newXlogSeg);
ControlFile.checkPointCopy.redo.xlogid = newXlogId;
ControlFile.checkPointCopy.redo.xrecoff =
newXlogSeg * XLogSegSize + SizeOfXLogPHD;
ControlFile.checkPointCopy.undo = ControlFile.checkPointCopy.redo;
ControlFile.checkPointCopy.time = time(NULL);
ControlFile.state = DB_SHUTDOWNED;
ControlFile.time = time(NULL);
ControlFile.logId = newXlogId;
ControlFile.logSeg = newXlogSeg + 1;
ControlFile.checkPoint = ControlFile.checkPointCopy.redo;
ControlFile.prevCheckPoint.xlogid = 0;
ControlFile.prevCheckPoint.xrecoff = 0;
}
else
/*
* Adjust fields as needed to force an empty XLOG starting at the next
* available segment.
*/
newXlogId = ControlFile.logId;
newXlogSeg = ControlFile.logSeg;
/* be sure we wrap around correctly at end of a logfile */
NextLogSeg(newXlogId, newXlogSeg);
ControlFile.checkPointCopy.redo.xlogid = newXlogId;
ControlFile.checkPointCopy.redo.xrecoff =
newXlogSeg * XLogSegSize + SizeOfXLogPHD;
ControlFile.checkPointCopy.undo = ControlFile.checkPointCopy.redo;
ControlFile.checkPointCopy.time = time(NULL);
ControlFile.state = DB_SHUTDOWNED;
ControlFile.time = time(NULL);
ControlFile.logId = newXlogId;
ControlFile.logSeg = newXlogSeg + 1;
ControlFile.checkPoint = ControlFile.checkPointCopy.redo;
ControlFile.prevCheckPoint.xlogid = 0;
ControlFile.prevCheckPoint.xrecoff = 0;
if (set_xid != 0)
ControlFile.checkPointCopy.nextXid = set_xid;
/* Contents are protected with a CRC */
@ -1011,20 +1009,6 @@ main(int argc, char **argv)
if (!ReadControlFile())
GuessControlValues();
/*
* Set XID in pg_control and exit
*/
if (set_xid)
{
if (guessed)
{
printf("\npg_control appears corrupt. Can not update XID.\n");
exit(1);
}
RewriteControlFile(set_xid);
exit(0);
}
/*
* If we had to guess anything, and -f was not given, just print the
* guessed values and exit. Also print if -n is given.
@ -1051,7 +1035,7 @@ main(int argc, char **argv)
/*
* Else, do the dirty deed.
*/
RewriteControlFile(0);
RewriteControlFile(set_xid);
KillExistingXLOG();
WriteEmptyXLOG();