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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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42
src/backend/access/nbtree/nbtxlog.c
View File

@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/nbtree/nbtxlog.c,v 1.26 2006/03/05 15:58:21 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/nbtree/nbtxlog.c,v 1.27 2006/03/24 04:32:12 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -650,16 +650,16 @@ btree_redo(XLogRecPtr lsn, XLogRecord *record)
}
static void
out_target(char *buf, xl_btreetid *target)
out_target(StringInfo buf, xl_btreetid *target)
{
sprintf(buf + strlen(buf), "rel %u/%u/%u; tid %u/%u",
appendStringInfo(buf, "rel %u/%u/%u; tid %u/%u",
target->node.spcNode, target->node.dbNode, target->node.relNode,
ItemPointerGetBlockNumber(&(target->tid)),
ItemPointerGetOffsetNumber(&(target->tid)));
}
void
btree_desc(char *buf, uint8 xl_info, char *rec)
btree_desc(StringInfo buf, uint8 xl_info, char *rec)
{
uint8 info = xl_info & ~XLR_INFO_MASK;
@ -669,7 +669,7 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_insert *xlrec = (xl_btree_insert *) rec;
strcat(buf, "insert: ");
appendStringInfo(buf, "insert: ");
out_target(buf, &(xlrec->target));
break;
}
@ -677,7 +677,7 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_insert *xlrec = (xl_btree_insert *) rec;
strcat(buf, "insert_upper: ");
appendStringInfo(buf, "insert_upper: ");
out_target(buf, &(xlrec->target));
break;
}
@ -685,7 +685,7 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_insert *xlrec = (xl_btree_insert *) rec;
strcat(buf, "insert_meta: ");
appendStringInfo(buf, "insert_meta: ");
out_target(buf, &(xlrec->target));
break;
}
@ -693,9 +693,9 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_split *xlrec = (xl_btree_split *) rec;
strcat(buf, "split_l: ");
appendStringInfo(buf, "split_l: ");
out_target(buf, &(xlrec->target));
sprintf(buf + strlen(buf), "; oth %u; rgh %u",
appendStringInfo(buf, "; oth %u; rgh %u",
xlrec->otherblk, xlrec->rightblk);
break;
}
@ -703,9 +703,9 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_split *xlrec = (xl_btree_split *) rec;
strcat(buf, "split_r: ");
appendStringInfo(buf, "split_r: ");
out_target(buf, &(xlrec->target));
sprintf(buf + strlen(buf), "; oth %u; rgh %u",
appendStringInfo(buf, "; oth %u; rgh %u",
xlrec->otherblk, xlrec->rightblk);
break;
}
@ -713,9 +713,9 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_split *xlrec = (xl_btree_split *) rec;
strcat(buf, "split_l_root: ");
appendStringInfo(buf, "split_l_root: ");
out_target(buf, &(xlrec->target));
sprintf(buf + strlen(buf), "; oth %u; rgh %u",
appendStringInfo(buf, "; oth %u; rgh %u",
xlrec->otherblk, xlrec->rightblk);
break;
}
@ -723,9 +723,9 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_split *xlrec = (xl_btree_split *) rec;
strcat(buf, "split_r_root: ");
appendStringInfo(buf, "split_r_root: ");
out_target(buf, &(xlrec->target));
sprintf(buf + strlen(buf), "; oth %u; rgh %u",
appendStringInfo(buf, "; oth %u; rgh %u",
xlrec->otherblk, xlrec->rightblk);
break;
}
@ -733,7 +733,7 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_delete *xlrec = (xl_btree_delete *) rec;
sprintf(buf + strlen(buf), "delete: rel %u/%u/%u; blk %u",
appendStringInfo(buf, "delete: rel %u/%u/%u; blk %u",
xlrec->node.spcNode, xlrec->node.dbNode,
xlrec->node.relNode, xlrec->block);
break;
@ -743,9 +743,9 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_delete_page *xlrec = (xl_btree_delete_page *) rec;
strcat(buf, "delete_page: ");
appendStringInfo(buf, "delete_page: ");
out_target(buf, &(xlrec->target));
sprintf(buf + strlen(buf), "; dead %u; left %u; right %u",
appendStringInfo(buf, "; dead %u; left %u; right %u",
xlrec->deadblk, xlrec->leftblk, xlrec->rightblk);
break;
}
@ -753,7 +753,7 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_newroot *xlrec = (xl_btree_newroot *) rec;
sprintf(buf + strlen(buf), "newroot: rel %u/%u/%u; root %u lev %u",
appendStringInfo(buf, "newroot: rel %u/%u/%u; root %u lev %u",
xlrec->node.spcNode, xlrec->node.dbNode,
xlrec->node.relNode,
xlrec->rootblk, xlrec->level);
@ -763,7 +763,7 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
{
xl_btree_newmeta *xlrec = (xl_btree_newmeta *) rec;
sprintf(buf + strlen(buf), "newmeta: rel %u/%u/%u; root %u lev %u fast %u lev %u",
appendStringInfo(buf, "newmeta: rel %u/%u/%u; root %u lev %u fast %u lev %u",
xlrec->node.spcNode, xlrec->node.dbNode,
xlrec->node.relNode,
xlrec->meta.root, xlrec->meta.level,
@ -771,7 +771,7 @@ btree_desc(char *buf, uint8 xl_info, char *rec)
break;
}
default:
strcat(buf, "UNKNOWN");
appendStringInfo(buf, "UNKNOWN");
break;
}
}