5 void factor_vm::collect_aging() {
6 /* Promote objects referenced from tenured space to tenured space, copy
7 everything else to the aging semi-space, and reset the nursery pointer. */
9 /* Change the op so that if we fail here, an assertion will be
11 current_gc->op = collect_to_tenured_op;
13 collector<tenured_space, to_tenured_policy> collector(this,
15 to_tenured_policy(this));
16 gc_event* event = current_gc->event;
19 event->started_card_scan();
20 collector.trace_cards(data->tenured, card_points_to_aging, 0xff);
22 event->ended_card_scan(collector.cards_scanned, collector.decks_scanned);
25 event->started_code_scan();
26 collector.trace_code_heap_roots(&code->points_to_aging);
28 event->ended_code_scan(collector.code_blocks_scanned);
30 collector.visitor.visit_mark_stack(&mark_stack);
33 /* If collection fails here, do a to_tenured collection. */
34 current_gc->op = collect_aging_op;
36 std::swap(data->aging, data->aging_semispace);
39 copying_collector<aging_space, aging_policy> collector(this,
43 collector.visitor.visit_all_roots();
44 collector.cheneys_algorithm();
46 data->reset_nursery();
47 code->clear_remembered_set();