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Change SearchSysCache coding conventions so that a reference count is

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maintained for each cache entry.  A cache entry will not be freed until
the matching ReleaseSysCache call has been executed.  This eliminates
worries about cache entries getting dropped while still in use.  See
my posting to pg-hackers of even date for more info.
This commit is contained in:
Tom Lane
2000-11-16 22:30:52 +00:00
parent cff23842a4
commit a933ee38bb
95 changed files with 2672 additions and 2314 deletions
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9
src/backend/utils/adt/arrayfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.65 2000/11/14 23:28:13 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.66 2000/11/16 22:30:31 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1590,9 +1590,9 @@ system_cache_lookup(Oid element_type,
HeapTuple typeTuple;
Form_pg_type typeStruct;
typeTuple = SearchSysCacheTuple(TYPEOID,
ObjectIdGetDatum(element_type),
0, 0, 0);
typeTuple = SearchSysCache(TYPEOID,
ObjectIdGetDatum(element_type),
0, 0, 0);
if (!HeapTupleIsValid(typeTuple))
elog(ERROR, "array_out: Cache lookup failed for type %u",
element_type);
@ -1607,6 +1607,7 @@ system_cache_lookup(Oid element_type,
*proc = typeStruct->typinput;
else
*proc = typeStruct->typoutput;
ReleaseSysCache(typeTuple);
}
/*