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https://gitee.com/openharmony/arkcompiler_ets_runtime
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100 lines
3.8 KiB
C++
100 lines
3.8 KiB
C++
/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ECMASCRIPT_JS_FINALIZATION_REGISTRY_H
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#define ECMASCRIPT_JS_FINALIZATION_REGISTRY_H
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#include "ecmascript/js_object.h"
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#include "ecmascript/record.h"
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#include "ecmascript/weak_vector.h"
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namespace panda::ecmascript {
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class CheckAndCallScope {
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public:
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explicit CheckAndCallScope(JSThread *thread) : thread_(thread)
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{
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thread_->SetCheckAndCallEnterState(true);
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}
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~CheckAndCallScope()
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{
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thread_->SetCheckAndCallEnterState(false);
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}
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private:
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JSThread *thread_;
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};
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class CellRecord final : public Record {
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public:
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CAST_CHECK(CellRecord, IsCellRecord);
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void SetToWeakRefTarget(JSThread *thread, JSTaggedValue value)
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{
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JSTaggedValue weakObj = JSTaggedValue(value.CreateAndGetWeakRef());
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ASSERT(weakObj.IsWeak());
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SetWeakRefTarget(thread, weakObj);
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}
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JSTaggedValue GetFromWeakRefTarget() const
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{
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JSTaggedValue weakObj = GetWeakRefTarget();
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if (!weakObj.IsUndefined()) {
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return JSTaggedValue(weakObj.GetWeakReferent());
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}
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return weakObj;
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}
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static constexpr size_t WEAKREF_TARGET_OFFSET = Record::SIZE;
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ACCESSORS(WeakRefTarget, WEAKREF_TARGET_OFFSET, HELD_VALUE_OFFSET)
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ACCESSORS(HeldValue, HELD_VALUE_OFFSET, SIZE)
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DECL_VISIT_OBJECT(WEAKREF_TARGET_OFFSET, SIZE)
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DECL_DUMP()
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};
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class CellRecordVector : public WeakVector {
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public:
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static CellRecordVector *Cast(TaggedObject *object)
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{
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return static_cast<CellRecordVector *>(object);
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}
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static constexpr uint32_t DEFAULT_GROW_SIZE = 5; // If the capacity is not enough, we Expansion five each time
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static JSHandle<CellRecordVector> Append(const JSThread *thread, const JSHandle<CellRecordVector> &array,
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const JSHandle<JSTaggedValue> &value);
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bool IsEmpty();
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private:
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static uint32_t CheckHole(const JSHandle<CellRecordVector> &array);
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};
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class JSFinalizationRegistry : public JSObject {
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public:
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CAST_CHECK(JSFinalizationRegistry, IsJSFinalizationRegistry);
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static void Register(JSThread *thread, JSHandle<JSTaggedValue> target, JSHandle<JSTaggedValue> heldValue,
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JSHandle<JSTaggedValue> unregisterToken, JSHandle<JSFinalizationRegistry> obj);
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static bool Unregister(JSThread *thread, JSHandle<JSTaggedValue> UnregisterToken,
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JSHandle<JSFinalizationRegistry> obj);
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static void CheckAndCall(JSThread *thread);
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static bool CleanupFinalizationRegistry(JSThread *thread, JSHandle<JSFinalizationRegistry> obj);
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static void AddFinRegLists(JSThread *thread, JSHandle<JSFinalizationRegistry> next);
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static void CleanFinRegLists(JSThread *thread, JSHandle<JSFinalizationRegistry> obj);
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static constexpr size_t CLEANUP_CALLBACK_OFFSET = JSObject::SIZE;
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ACCESSORS(CleanupCallback, CLEANUP_CALLBACK_OFFSET, NO_UNREGISTER_OFFSET)
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ACCESSORS(NoUnregister, NO_UNREGISTER_OFFSET, MAYBE_UNREGISTER_OFFSET)
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ACCESSORS(MaybeUnregister, MAYBE_UNREGISTER_OFFSET, NEXT_OFFSET)
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ACCESSORS(Next, NEXT_OFFSET, PREV_OFFSET)
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ACCESSORS(Prev, PREV_OFFSET, SIZE)
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DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, CLEANUP_CALLBACK_OFFSET, SIZE)
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DECL_DUMP()
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};
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} // namespace
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#endif // ECMASCRIPT_JS_FINALIZATION_REGISTRY_H
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