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   copying_collector<aging_space, nursery_policy> collector(this,
   9                                                            this->data->aging,
  10                                                            nursery_policy(this));
  11
  12   collector.trace_roots();
  13   collector.trace_contexts();
  14
  15   gc_event* event = current_gc->event;
  16
  17   if (event)
  18     event->started_card_scan();
  19   collector.trace_cards(data->tenured, card_points_to_nursery,
  20                         simple_unmarker(card_points_to_nursery));
  21   if (data->aging->here != data->aging->start) {
  22     collector.trace_cards(data->aging, card_points_to_nursery, full_unmarker());
  23   }
  24   if (event)
  25     event->ended_card_scan(collector.cards_scanned, collector.decks_scanned);
  26
  27   if (event)
  28     event->started_code_scan();
  29   collector.trace_code_heap_roots(&code->points_to_nursery);
  30   if (event)
  31     event->ended_code_scan(collector.code_blocks_scanned);
  32
  33   collector.cheneys_algorithm();
  34
  35   data->reset_generation(&nursery);
  36   code->points_to_nursery.clear();
  37 }
  38
  39 }