vm/nursery_collector.cpp

   1 #include "master.hpp"
   2
   3 namespace factor
   4 {
   5
   6 nursery_collector::nursery_collector(factor_vm *parent_) :
   7         copying_collector<aging_space,nursery_policy>(
   8                 parent_,
   9                 parent_->data->aging,
  10                 nursery_policy(parent_)) {}
  11
  12 void factor_vm::collect_nursery()
  13 {
  14         /* Copy live objects from the nursery (as determined by the root set and
  15         marked cards in aging and tenured) to aging space. */
  16         nursery_collector collector(this);
  17
  18         collector.trace_roots();
  19         collector.trace_contexts();
  20
  21         current_gc->event->started_card_scan();
  22         collector.trace_cards(data->tenured,
  23                 card_points_to_nursery,
  24                 simple_unmarker(card_points_to_nursery));
  25         collector.trace_cards(data->aging,
  26                 card_points_to_nursery,
  27                 full_unmarker());
  28         current_gc->event->ended_card_scan(collector.cards_scanned,collector.decks_scanned);
  29
  30         current_gc->event->started_code_scan();
  31         collector.trace_code_heap_roots(&code->points_to_nursery);
  32         current_gc->event->ended_code_scan(collector.code_blocks_scanned);
  33
  34         collector.cheneys_algorithm();
  35
  36         current_gc->event->started_code_sweep();
  37         update_code_heap_for_minor_gc(&code->points_to_nursery);
  38         current_gc->event->ended_code_sweep();
  39
  40         data->reset_generation(&nursery);
  41         code->points_to_nursery.clear();
  42 }
  43
  44 }