54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
#include "master.hpp"
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namespace factor {
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struct nursery_policy {
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bump_allocator* nursery;
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explicit nursery_policy(bump_allocator* nursery) : nursery(nursery) {}
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bool should_copy_p(object* obj) {
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return nursery->contains_p(obj);
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}
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void promoted_object(object* obj) {}
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void visited_object(object* obj) {}
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};
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void factor_vm::collect_nursery() {
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/* Copy live objects from the nursery (as determined by the root set and
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marked cards in aging and tenured) to aging space. */
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gc_workhorse<aging_space, nursery_policy>
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workhorse(this, data->aging, nursery_policy(data->nursery));
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slot_visitor<gc_workhorse<aging_space, nursery_policy>>
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visitor(this, workhorse);
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cell scan = data->aging->start + data->aging->occupied_space();
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visitor.visit_all_roots();
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gc_event* event = current_gc->event;
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if (event)
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event->reset_timer();
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visitor.visit_cards(data->tenured, card_points_to_nursery,
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card_points_to_nursery);
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visitor.visit_cards(data->aging, card_points_to_nursery, 0xff);
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if (event)
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event->ended_card_scan(visitor.cards_scanned, visitor.decks_scanned);
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if (event)
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event->reset_timer();
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visitor.visit_code_heap_roots(&code->points_to_nursery);
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if (event)
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event->ended_code_scan(code->points_to_nursery.size());
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visitor.cheneys_algorithm(data->aging, scan);
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data->reset_nursery();
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code->points_to_nursery.clear();
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}
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}
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