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Joyee Cheung
d70aab663c
Move util::WeakReference to a separate header and implement
{de}serialization for it to be snapshotable.
PR-URL: https://github.com/nodejs/node/pull/44193
Refs: https://github.com/nodejs/node/issues/44014
Refs: https://github.com/nodejs/node/issues/37476
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
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#ifndef SRC_NODE_UTIL_H_
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#define SRC_NODE_UTIL_H_
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#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#include "base_object.h"
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#include "node_snapshotable.h"
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#include "v8.h"
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namespace node {
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namespace util {
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class WeakReference : public SnapshotableObject {
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public:
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SERIALIZABLE_OBJECT_METHODS();
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static constexpr FastStringKey type_name{"node::util::WeakReference"};
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static constexpr EmbedderObjectType type_int =
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EmbedderObjectType::k_util_weak_reference;
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WeakReference(Environment* env,
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v8::Local<v8::Object> object,
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v8::Local<v8::Object> target);
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static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
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static void Get(const v8::FunctionCallbackInfo<v8::Value>& args);
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static void IncRef(const v8::FunctionCallbackInfo<v8::Value>& args);
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static void DecRef(const v8::FunctionCallbackInfo<v8::Value>& args);
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SET_MEMORY_INFO_NAME(WeakReference)
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SET_SELF_SIZE(WeakReference)
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SET_NO_MEMORY_INFO()
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struct InternalFieldInfo : public node::InternalFieldInfoBase {
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SnapshotIndex target;
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uint64_t reference_count;
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};
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private:
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WeakReference(Environment* env,
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v8::Local<v8::Object> object,
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v8::Local<v8::Object> target,
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uint64_t reference_count);
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v8::Global<v8::Object> target_;
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uint64_t reference_count_ = 0;
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SnapshotIndex target_index_ = 0; // 0 means target_ is not snapshotted
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};
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} // namespace util
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} // namespace node
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#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#endif // SRC_NODE_UTIL_H_
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