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_->gc_stats.nursery_stats,
  10                 parent_->data->aging,
  11                 nursery_policy(parent_)) {}
  12
  13 void factor_vm::collect_nursery()
  14 {
  15         /* Copy live objects from the nursery (as determined by the root set and
  16         marked cards in aging and tenured) to aging space. */
  17         nursery_collector collector(this);
  18
  19         collector.trace_roots();
  20         collector.trace_contexts();
  21         collector.trace_cards(data->tenured,
  22                 card_points_to_nursery,
  23                 simple_unmarker(card_points_to_nursery));
  24         collector.trace_cards(data->aging,
  25                 card_points_to_nursery,
  26                 simple_unmarker(card_mark_mask));
  27         collector.trace_code_heap_roots(&code->points_to_nursery);
  28         collector.cheneys_algorithm();
  29         update_code_heap_for_minor_gc(&code->points_to_nursery);
  30
  31         nursery.here = nursery.start;
  32         code->points_to_nursery.clear();
  33 }
  34
  35 }