vm/to_tenured_collector.cpp

   1 #include "master.hpp"
   2
   3 namespace factor
   4 {
   5
   6 to_tenured_collector::to_tenured_collector(factor_vm *parent_) :
   7         collector<tenured_space,to_tenured_policy>(
   8                 parent_,
   9                 parent_->data->tenured,
  10                 to_tenured_policy(parent_)) {}
  11
  12 void to_tenured_collector::tenure_reachable_objects()
  13 {
  14         std::vector<cell> *mark_stack = &parent->mark_stack;
  15         while(!mark_stack->empty())
  16         {
  17                 cell ptr = mark_stack->back();
  18                 mark_stack->pop_back();
  19                 this->trace_object((object *)ptr);
  20         }
  21 }
  22
  23 void factor_vm::collect_to_tenured()
  24 {
  25         /* Copy live objects from aging space to tenured space. */
  26         to_tenured_collector collector(this);
  27
  28         mark_stack.clear();
  29
  30         collector.trace_roots();
  31         collector.trace_contexts();
  32
  33         current_gc->event->started_card_scan();
  34         collector.trace_cards(data->tenured,
  35                 card_points_to_aging,
  36                 full_unmarker());
  37         current_gc->event->ended_card_scan(collector.cards_scanned,collector.decks_scanned);
  38
  39         current_gc->event->started_code_scan();
  40         collector.trace_code_heap_roots(&code->points_to_aging);
  41         current_gc->event->ended_code_scan(collector.code_blocks_scanned);
  42
  43         collector.tenure_reachable_objects();
  44
  45         data->reset_generation(&nursery);
  46         data->reset_generation(data->aging);
  47         code->clear_remembered_set();
  48 }
  49
  50 }