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https://gitee.com/openharmony/arkcompiler_ets_runtime
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bb3f6c4b4f
Issue: https://gitee.com/openharmony/arkcompiler_ets_runtime/issues/I7G3LO Signed-off-by: Gymee <yumeijie@huawei.com> Change-Id: I6f0a50afae40cd5dfd0f7d03044e4388f62d1f80
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/*
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* Copyright (c) 2021 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_JSNATIVEPOINTER_H
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#define ECMASCRIPT_JSNATIVEPOINTER_H
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#include "ecmascript/ecma_macros.h"
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#include "ecmascript/mem/tagged_object.h"
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namespace panda::ecmascript {
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using DeleteEntryPoint = void (*)(void *, void *);
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// Used for the requirement of ACE that wants to associated a registered C++ resource with a JSObject.
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class JSNativePointer : public TaggedObject {
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public:
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static JSNativePointer *Cast(TaggedObject *object)
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{
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ASSERT(JSTaggedValue(object).IsJSNativePointer());
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return reinterpret_cast<JSNativePointer *>(object);
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}
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inline void ResetExternalPointer(void *externalPointer)
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{
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DeleteExternalPointer();
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SetExternalPointer(externalPointer);
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}
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inline void Destroy()
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{
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DeleteExternalPointer();
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SetExternalPointer(nullptr);
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SetDeleter(nullptr);
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SetData(nullptr);
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}
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inline void Detach()
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{
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// Keep other fields accessible after detached
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SetDeleter(nullptr);
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}
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static constexpr size_t POINTER_OFFSET = TaggedObjectSize();
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ACCESSORS_NATIVE_FIELD(ExternalPointer, void, POINTER_OFFSET, DELETER_OFFSET);
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ACCESSORS_PRIMITIVE_FIELD(Deleter, DeleteEntryPoint, DELETER_OFFSET, DATA_OFFSET)
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ACCESSORS_NATIVE_FIELD(Data, void, DATA_OFFSET, DATA_SIZE_OFFSET);
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ACCESSORS_PRIMITIVE_FIELD(BindingSize, uint64_t, DATA_SIZE_OFFSET, LAST_OFFSET)
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DEFINE_ALIGN_SIZE(LAST_OFFSET);
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DECL_VISIT_NATIVE_FIELD(POINTER_OFFSET, DATA_SIZE_OFFSET)
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private:
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inline void DeleteExternalPointer()
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{
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void *externalPointer = GetExternalPointer();
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DeleteEntryPoint deleter = GetDeleter();
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if (deleter != nullptr) {
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deleter(externalPointer, GetData());
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}
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}
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};
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_JSNATIVEPOINTER_H
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