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Make critical sections (elog->crash) and interrupt holdoff sections

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into distinct concepts, per recent discussion on pghackers.
This commit is contained in:
Tom Lane
2001-01-19 22:08:47 +00:00
parent 75815c3100
commit 6ce0ed2813
9 changed files with 104 additions and 72 deletions
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15
src/backend/commands/vacuum.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.183 2001/01/14 05:08:15 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.184 2001/01/19 22:08:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1425,9 +1425,6 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
ToPage = BufferGetPage(cur_buffer);
Cpage = BufferGetPage(Cbuf);
/* NO ELOG(ERROR) TILL CHANGES ARE LOGGED */
START_CRIT_SECTION();
Citemid = PageGetItemId(Cpage,
ItemPointerGetOffsetNumber(&(tuple.t_self)));
tuple.t_datamcxt = NULL;
@@ -1442,6 +1439,9 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
RelationInvalidateHeapTuple(onerel, &tuple);
/* NO ELOG(ERROR) TILL CHANGES ARE LOGGED */
START_CRIT_SECTION();
TransactionIdStore(myXID, (TransactionId *) &(tuple.t_data->t_cmin));
tuple.t_data->t_infomask &=
~(HEAP_XMIN_COMMITTED | HEAP_XMIN_INVALID | HEAP_MOVED_IN);
@@ -1626,6 +1626,9 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
RelationInvalidateHeapTuple(onerel, &tuple);
/* NO ELOG(ERROR) TILL CHANGES ARE LOGGED */
START_CRIT_SECTION();
/*
* Mark new tuple as moved_in by vacuum and store vacuum XID
* in t_cmin !!!
@@ -1635,9 +1638,6 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
~(HEAP_XMIN_COMMITTED | HEAP_XMIN_INVALID | HEAP_MOVED_OFF);
newtup.t_data->t_infomask |= HEAP_MOVED_IN;
/* NO ELOG(ERROR) TILL CHANGES ARE LOGGED */
START_CRIT_SECTION();
/* add tuple to the page */
newoff = PageAddItem(ToPage, (Item) newtup.t_data, tuple_len,
InvalidOffsetNumber, LP_USED);
@@ -2070,7 +2070,6 @@ vacuum_page(Relation onerel, Buffer buffer, VacPage vacpage)
PageSetSUI(page, ThisStartUpID);
}
END_CRIT_SECTION();
}
/*