OSDN Git Service

Per Tom, do full reset on -x flag.
authorBruce Momjian <bruce@momjian.us>
Thu, 10 Jan 2002 18:08:29 +0000 (18:08 +0000)
committerBruce Momjian <bruce@momjian.us>
Thu, 10 Jan 2002 18:08:29 +0000 (18:08 +0000)
contrib/pg_resetxlog/pg_resetxlog.c

index 7889cdc..7957c95 100644 (file)
@@ -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 */
@@ -1012,20 +1010,6 @@ main(int argc, char **argv)
                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();