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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/heap/cppgc/marking-state.h"
#include <unordered_set>
#include "src/heap/cppgc/heap-base.h"
#include "src/heap/cppgc/stats-collector.h"
namespace cppgc {
namespace internal {
void MarkingStateBase::Publish() { marking_worklist_.Publish(); }
BasicMarkingState::BasicMarkingState(HeapBase& heap,
MarkingWorklists& marking_worklists,
CompactionWorklists* compaction_worklists)
: MarkingStateBase(heap, marking_worklists),
previously_not_fully_constructed_worklist_(
*marking_worklists.previously_not_fully_constructed_worklist()),
weak_container_callback_worklist_(
*marking_worklists.weak_container_callback_worklist()),
parallel_weak_callback_worklist_(
*marking_worklists.parallel_weak_callback_worklist()),
weak_custom_callback_worklist_(
*marking_worklists.weak_custom_callback_worklist()),
write_barrier_worklist_(*marking_worklists.write_barrier_worklist()),
concurrent_marking_bailout_worklist_(
*marking_worklists.concurrent_marking_bailout_worklist()),
discovered_ephemeron_pairs_worklist_(
*marking_worklists.discovered_ephemeron_pairs_worklist()),
ephemeron_pairs_for_processing_worklist_(
*marking_worklists.ephemeron_pairs_for_processing_worklist()),
weak_containers_worklist_(*marking_worklists.weak_containers_worklist()) {
if (compaction_worklists) {
movable_slots_worklist_ =
std::make_unique<CompactionWorklists::MovableReferencesWorklist::Local>(
*compaction_worklists->movable_slots_worklist());
}
}
void BasicMarkingState::Publish() {
MarkingStateBase::Publish();
previously_not_fully_constructed_worklist_.Publish();
weak_container_callback_worklist_.Publish();
parallel_weak_callback_worklist_.Publish();
weak_custom_callback_worklist_.Publish();
write_barrier_worklist_.Publish();
concurrent_marking_bailout_worklist_.Publish();
discovered_ephemeron_pairs_worklist_.Publish();
ephemeron_pairs_for_processing_worklist_.Publish();
if (movable_slots_worklist_) movable_slots_worklist_->Publish();
}
void MutatorMarkingState::FlushNotFullyConstructedObjects() {
std::unordered_set<HeapObjectHeader*> objects =
not_fully_constructed_worklist_.Extract<AccessMode::kAtomic>();
for (HeapObjectHeader* object : objects) {
if (MarkNoPush(*object))
previously_not_fully_constructed_worklist_.Push(object);
}
}
void MutatorMarkingState::FlushDiscoveredEphemeronPairs() {
StatsCollector::EnabledScope stats_scope(
heap_.stats_collector(), StatsCollector::kMarkFlushEphemerons);
discovered_ephemeron_pairs_worklist_.Publish();
if (!discovered_ephemeron_pairs_worklist_.IsGlobalEmpty()) {
ephemeron_pairs_for_processing_worklist_.Merge(
discovered_ephemeron_pairs_worklist_);
}
}
void MutatorMarkingState::Publish() {
BasicMarkingState::Publish();
retrace_marked_objects_worklist_.Publish();
}
} // namespace internal
} // namespace cppgc
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