* avoid duplicate block
@ 2014-12-06 0:52 Eric Wong
0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2014-12-06 0:52 UTC (permalink / raw)
To: spew
---
--- a/gc.c
+++ b/gc.c
@@ -2360,6 +2360,21 @@ define_final0(VALUE obj, VALUE block)
if (st_lookup(finalizer_table, obj, &data)) {
table = (VALUE)data;
+
+ /* avoid duplicate block, table is usually small */
+ {
+ const VALUE *ptr = RARRAY_CONST_PTR(table);
+ long len = RARRAY_LEN(table);
+ long i;
+
+ for (i = 0; i < len; i++, ptr++) {
+ if (rb_funcall(*ptr, idEq, 1, block)) {
+ rb_gc_force_recycle(block);
+ return *ptr;
+ }
+ }
+ }
+
rb_ary_push(table, block);
}
else {
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