factor/vm/nursery_collector.cpp

43 lines
1.3 KiB
C++

#include "master.hpp"
namespace factor {
nursery_collector::nursery_collector(factor_vm* parent)
: copying_collector<aging_space, nursery_policy>(parent,
parent->data->aging,
nursery_policy(parent)) {}
void factor_vm::collect_nursery() {
/* Copy live objects from the nursery (as determined by the root set and
marked cards in aging and tenured) to aging space. */
nursery_collector collector(this);
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_nursery,
simple_unmarker(card_points_to_nursery));
if (data->aging->here != data->aging->start) {
collector.trace_cards(data->aging, card_points_to_nursery, 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_nursery);
if (event)
event->ended_code_scan(collector.code_blocks_scanned);
collector.cheneys_algorithm();
data->reset_generation(&nursery);
code->points_to_nursery.clear();
}
}