vm/nursery_collector.cpp

   1 #include "master.hpp"
   2
   3 namespace factor {
   4
   5 void factor_vm::collect_nursery() {
   6   /* Copy live objects from the nursery (as determined by the root set and
   7      marked cards in aging and tenured) to aging space. */
   8   collector<aging_space, nursery_policy> collector(this,
   9                                                    this->data->aging,
  10                                                    nursery_policy(this));
  11
  12   collector.visitor.visit_all_roots();
  13   gc_event* event = current_gc->event;
  14
  15   if (event)
  16     event->started_card_scan();
  17   collector.trace_cards(data->tenured, card_points_to_nursery,
  18                         card_points_to_nursery);
  19   collector.trace_cards(data->aging, card_points_to_nursery, 0xff);
  20
  21   if (event)
  22     event->ended_card_scan(collector.cards_scanned, collector.decks_scanned);
  23
  24   if (event)
  25     event->started_code_scan();
  26   collector.trace_code_heap_roots(&code->points_to_nursery);
  27   if (event)
  28     event->ended_code_scan(collector.code_blocks_scanned);
  29
  30   collector.cheneys_algorithm();
  31
  32   data->reset_nursery();
  33   code->points_to_nursery.clear();
  34 }
  35
  36 }