factor/vm/to_tenured_collector.cpp

53 lines
1.2 KiB
C++

#include "master.hpp"
namespace factor
{
to_tenured_collector::to_tenured_collector(factor_vm *parent_) :
collector<tenured_space,to_tenured_policy>(
parent_,
parent_->data->tenured,
to_tenured_policy(parent_)) {}
void to_tenured_collector::tenure_reachable_objects()
{
std::vector<cell> *mark_stack = &parent->mark_stack;
while(!mark_stack->empty())
{
cell ptr = mark_stack->back();
mark_stack->pop_back();
this->trace_object((object *)ptr);
}
}
void factor_vm::collect_to_tenured()
{
/* Copy live objects from aging space to tenured space. */
to_tenured_collector collector(this);
mark_stack.clear();
collector.trace_roots();
collector.trace_contexts();
gc_event *event = current_gc->event;
if(event) event->started_card_scan();
collector.trace_cards(data->tenured,
card_points_to_aging,
full_unmarker());
if(event) event->ended_card_scan(collector.cards_scanned,collector.decks_scanned);
if(event) event->started_code_scan();
collector.trace_code_heap_roots(&code->points_to_aging);
if(event) event->ended_code_scan(collector.code_blocks_scanned);
collector.tenure_reachable_objects();
data->reset_generation(&nursery);
data->reset_generation(data->aging);
code->clear_remembered_set();
}
}