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authorTom Lane <tgl@sss.pgh.pa.us>2009-11-29 21:02:22 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2009-11-29 21:02:22 +0000
commit1962ec68296271350346acc6bc1ce5e88bba8a64 (patch)
treebc47061e37b353ef61ec2edb99c06d738f31e7c6
parent2164a24686bf7d6b10a9f9a9952954c76bc4bfa1 (diff)
downloadpostgresql-1962ec68296271350346acc6bc1ce5e88bba8a64.tar.gz
Fix session-lifespan memory leak when a plperl function is redefined:
we have to tell Perl it can release its compiled copy of the function text. Noted by Alexey Klyukin. Back-patch to 8.2 --- the problem exists further back, but this patch won't work without modification, and it's probably not worth the trouble.
-rw-r--r--src/pl/plperl/plperl.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/pl/plperl/plperl.c b/src/pl/plperl/plperl.c
index d2ea5b5883..b807fcc3c0 100644
--- a/src/pl/plperl/plperl.c
+++ b/src/pl/plperl/plperl.c
@@ -1,7 +1,7 @@
/**********************************************************************
* plperl.c - perl as a procedural language for PostgreSQL
*
- * $PostgreSQL: pgsql/src/pl/plperl/plperl.c,v 1.150.2.2 2009/10/31 18:12:05 tgl Exp $
+ * $PostgreSQL: pgsql/src/pl/plperl/plperl.c,v 1.150.2.3 2009/11/29 21:02:22 tgl Exp $
*
**********************************************************************/
@@ -1528,11 +1528,13 @@ compile_plperl_function(Oid fn_oid, bool is_trigger)
if (!uptodate)
{
+ hash_search(plperl_proc_hash, internal_proname,
+ HASH_REMOVE, NULL);
+ if (prodesc->reference)
+ SvREFCNT_dec(prodesc->reference);
free(prodesc->proname);
free(prodesc);
prodesc = NULL;
- hash_search(plperl_proc_hash, internal_proname,
- HASH_REMOVE, NULL);
}
}