62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
#include "master.hpp"
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namespace factor
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{
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aging_collector::aging_collector(factor_vm *parent_) :
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copying_collector<aging_space,aging_policy>(
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parent_,
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parent_->data->aging,
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aging_policy(parent_)) {}
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void factor_vm::collect_aging()
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{
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/* Promote objects referenced from tenured space to tenured space, copy
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everything else to the aging semi-space, and reset the nursery pointer. */
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{
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/* Change the op so that if we fail here, we proceed to a full
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tenured collection. We are collecting to tenured space, and
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cards were unmarked, so we can't proceed with a to_tenured
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collection. */
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current_gc->op = collect_to_tenured_op;
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to_tenured_collector collector(this);
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current_gc->event->started_code_scan();
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collector.trace_cards(data->tenured,
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card_points_to_aging,
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full_unmarker());
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current_gc->event->ended_card_scan(collector.cards_scanned,collector.decks_scanned);
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current_gc->event->started_code_scan();
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collector.trace_code_heap_roots(&code->points_to_aging);
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current_gc->event->ended_code_scan(collector.code_blocks_scanned);
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collector.tenure_reachable_objects();
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current_gc->event->started_code_sweep();
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update_code_heap_for_minor_gc(&code->points_to_aging);
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current_gc->event->ended_code_sweep();
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}
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{
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/* If collection fails here, do a to_tenured collection. */
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current_gc->op = collect_aging_op;
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std::swap(data->aging,data->aging_semispace);
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data->reset_generation(data->aging);
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aging_collector collector(this);
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collector.trace_roots();
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collector.trace_contexts();
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collector.cheneys_algorithm();
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data->reset_generation(&nursery);
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code->points_to_nursery.clear();
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code->points_to_aging.clear();
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}
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}
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}
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