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Arrange to emit a description of the current XLOG record as error context

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when an error occurs during xlog replay.  Also, replace the former risky
'write into a fixed-size buffer with no overflow detection' API for XLOG
record description routines; use an expansible StringInfo instead.  (The
latter accounts for most of the patch bulk.)

Qingqing Zhou
This commit is contained in:
Tom Lane
2006-03-24 04:32:13 +00:00
parent 4fb92718be
commit 0a20207060
25 changed files with 198 additions and 160 deletions
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10
src/backend/access/transam/clog.c
View File

@ -24,7 +24,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/access/transam/clog.c,v 1.37 2006/03/05 15:58:21 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/clog.c,v 1.38 2006/03/24 04:32:12 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -412,17 +412,17 @@ clog_redo(XLogRecPtr lsn, XLogRecord *record)
}
void
clog_desc(char *buf, uint8 xl_info, char *rec)
clog_desc(StringInfo buf, uint8 xl_info, char *rec)
{
uint8 info = xl_info & ~XLR_INFO_MASK;
uint8 info = xl_info & ~XLR_INFO_MASK;
if (info == CLOG_ZEROPAGE)
{
int pageno;
memcpy(&pageno, rec, sizeof(int));
sprintf(buf + strlen(buf), "zeropage: %d", pageno);
appendStringInfo(buf, "zeropage: %d", pageno);
}
else
strcat(buf, "UNKNOWN");
appendStringInfo(buf, "UNKNOWN");
}