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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	node_blob.h	Lines:	9	20	45.0 %
Date:	2022-09-19 04:21:54	Branches:	0	0	- %


#ifndef SRC_NODE_BLOB_H_
#define SRC_NODE_BLOB_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "async_wrap.h"
#include "base_object.h"
#include "env.h"
#include "memory_tracker.h"
#include "node_internals.h"
#include "node_snapshotable.h"
#include "node_worker.h"
#include "v8.h"

#include <string>
#include <unordered_map>
#include <vector>

namespace node {

struct BlobEntry {
  std::shared_ptr<v8::BackingStore> store;
  size_t length;
  size_t offset;
};

class Blob : public BaseObject {
 public:
  static void RegisterExternalReferences(
      ExternalReferenceRegistry* registry);

  static void Initialize(
      v8::Local<v8::Object> target,
      v8::Local<v8::Value> unused,
      v8::Local<v8::Context> context,
      void* priv);

  static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void ToArrayBuffer(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void ToSlice(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void StoreDataObject(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void GetDataObject(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void RevokeDataObject(const v8::FunctionCallbackInfo<v8::Value>& args);

  static v8::Local<v8::FunctionTemplate> GetConstructorTemplate(
      Environment* env);

  static BaseObjectPtr<Blob> Create(Environment* env,
                                    const std::vector<BlobEntry>& store,
                                    size_t length);

  static bool HasInstance(Environment* env, v8::Local<v8::Value> object);

  const std::vector<BlobEntry>& entries() const { return store_; }

  void MemoryInfo(MemoryTracker* tracker) const override;
  SET_MEMORY_INFO_NAME(Blob)
  SET_SELF_SIZE(Blob)

  // Copies the contents of the Blob into an ArrayBuffer.
  v8::MaybeLocal<v8::Value> GetArrayBuffer(Environment* env);

  BaseObjectPtr<Blob> Slice(Environment* env, size_t start, size_t end);

  inline size_t length() const { return length_; }

  class BlobTransferData : public worker::TransferData {
   public:
    explicit BlobTransferData(
        const std::vector<BlobEntry>& store,
      size_t length)
        : store_(store),
          length_(length) {}

    BaseObjectPtr<BaseObject> Deserialize(
        Environment* env,
        v8::Local<v8::Context> context,
        std::unique_ptr<worker::TransferData> self) override;

    SET_MEMORY_INFO_NAME(BlobTransferData)
    SET_SELF_SIZE(BlobTransferData)
    SET_NO_MEMORY_INFO()

   private:
    std::vector<BlobEntry> store_;
    size_t length_ = 0;
  };

  BaseObject::TransferMode GetTransferMode() const override;
  std::unique_ptr<worker::TransferData> CloneForMessaging() const override;

  Blob(
      Environment* env,
      v8::Local<v8::Object> obj,
      const std::vector<BlobEntry>& store,
      size_t length);

 private:
  std::vector<BlobEntry> store_;
  size_t length_ = 0;
};

class FixedSizeBlobCopyJob : public AsyncWrap, public ThreadPoolWork {
 public:
  enum class Mode {
    SYNC,
    ASYNC
  };

  static void RegisterExternalReferences(
      ExternalReferenceRegistry* registry);
  static void Initialize(Environment* env, v8::Local<v8::Object> target);
  static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void Run(const v8::FunctionCallbackInfo<v8::Value>& args);

  bool IsNotIndicativeOfMemoryLeakAtExit() const override {
    return true;
  }

  void DoThreadPoolWork() override;
  void AfterThreadPoolWork(int status) override;

  Mode mode() const { return mode_; }

  void MemoryInfo(MemoryTracker* tracker) const override;
  SET_MEMORY_INFO_NAME(FixedSizeBlobCopyJob)
  SET_SELF_SIZE(FixedSizeBlobCopyJob)

 private:
  FixedSizeBlobCopyJob(
    Environment* env,
    v8::Local<v8::Object> object,
    Blob* blob,
    Mode mode = Mode::ASYNC);

  Mode mode_;
  std::vector<BlobEntry> source_;
  std::shared_ptr<v8::BackingStore> destination_;
  size_t length_ = 0;
};

class BlobBindingData : public SnapshotableObject {
 public:
  explicit BlobBindingData(Environment* env, v8::Local<v8::Object> wrap);

  using InternalFieldInfo = InternalFieldInfoBase;

  SERIALIZABLE_OBJECT_METHODS()

  static constexpr FastStringKey type_name{"node::BlobBindingData"};
  static constexpr EmbedderObjectType type_int =
      EmbedderObjectType::k_blob_binding_data;

  void MemoryInfo(MemoryTracker* tracker) const override;
  SET_SELF_SIZE(BlobBindingData)
  SET_MEMORY_INFO_NAME(BlobBindingData)

  struct StoredDataObject : public MemoryRetainer {
    BaseObjectPtr<Blob> blob;
    size_t length;
    std::string type;

    StoredDataObject() = default;

    StoredDataObject(
        const BaseObjectPtr<Blob>& blob_,
        size_t length_,
        const std::string& type_);

    void MemoryInfo(MemoryTracker* tracker) const override;
    SET_SELF_SIZE(StoredDataObject)
    SET_MEMORY_INFO_NAME(StoredDataObject)
  };

  void store_data_object(
      const std::string& uuid,
      const StoredDataObject& object);

  void revoke_data_object(const std::string& uuid);

  StoredDataObject get_data_object(const std::string& uuid);

 private:
  std::unordered_map<std::string, StoredDataObject> data_objects_;
};

}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif  // SRC_NODE_BLOB_H_


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#ifndef SRC_NODE_BLOB_H_
2			#define SRC_NODE_BLOB_H_
3
4			#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
5
6			#include "async_wrap.h"
7			#include "base_object.h"
8			#include "env.h"
9			#include "memory_tracker.h"
10			#include "node_internals.h"
11			#include "node_snapshotable.h"
12			#include "node_worker.h"
13			#include "v8.h"
14
15			#include <string>
16			#include <unordered_map>
17			#include <vector>
18
19			namespace node {
20
21			struct BlobEntry {
22			std::shared_ptr<v8::BackingStore> store;
23			size_t length;
24			size_t offset;
25			};
26
27			class Blob : public BaseObject {
28			public:
29			static void RegisterExternalReferences(
30			ExternalReferenceRegistry* registry);
31
32			static void Initialize(
33			v8::Local<v8::Object> target,
34			v8::Local<v8::Value> unused,
35			v8::Local<v8::Context> context,
36			void* priv);
37
38			static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
39			static void ToArrayBuffer(const v8::FunctionCallbackInfo<v8::Value>& args);
40			static void ToSlice(const v8::FunctionCallbackInfo<v8::Value>& args);
41			static void StoreDataObject(const v8::FunctionCallbackInfo<v8::Value>& args);
42			static void GetDataObject(const v8::FunctionCallbackInfo<v8::Value>& args);
43			static void RevokeDataObject(const v8::FunctionCallbackInfo<v8::Value>& args);
44
45			static v8::Local<v8::FunctionTemplate> GetConstructorTemplate(
46			Environment* env);
47
48			static BaseObjectPtr<Blob> Create(Environment* env,
49			const std::vector<BlobEntry>& store,
50			size_t length);
51
52			static bool HasInstance(Environment* env, v8::Local<v8::Value> object);
53
54		112	const std::vector<BlobEntry>& entries() const { return store_; }
55
56			void MemoryInfo(MemoryTracker* tracker) const override;
57			SET_MEMORY_INFO_NAME(Blob)
58			SET_SELF_SIZE(Blob)
59
60			// Copies the contents of the Blob into an ArrayBuffer.
61			v8::MaybeLocal<v8::Value> GetArrayBuffer(Environment* env);
62
63			BaseObjectPtr<Blob> Slice(Environment* env, size_t start, size_t end);
64
65		130	inline size_t length() const { return length_; }
66
67			class BlobTransferData : public worker::TransferData {
68			public:
69		1	explicit BlobTransferData(
70			const std::vector<BlobEntry>& store,
71			size_t length)
72		1	: store_(store),
73		1	length_(length) {}
74
75			BaseObjectPtr<BaseObject> Deserialize(
76			Environment* env,
77			v8::Local<v8::Context> context,
78			std::unique_ptr<worker::TransferData> self) override;
79
80			SET_MEMORY_INFO_NAME(BlobTransferData)
81			SET_SELF_SIZE(BlobTransferData)
82			SET_NO_MEMORY_INFO()
83
84			private:
85			std::vector<BlobEntry> store_;
86			size_t length_ = 0;
87			};
88
89			BaseObject::TransferMode GetTransferMode() const override;
90			std::unique_ptr<worker::TransferData> CloneForMessaging() const override;
91
92			Blob(
93			Environment* env,
94			v8::Local<v8::Object> obj,
95			const std::vector<BlobEntry>& store,
96			size_t length);
97
98			private:
99			std::vector<BlobEntry> store_;
100			size_t length_ = 0;
101			};
102
103			class FixedSizeBlobCopyJob : public AsyncWrap, public ThreadPoolWork {
104			public:
105			enum class Mode {
106			SYNC,
107			ASYNC
108			};
109
110			static void RegisterExternalReferences(
111			ExternalReferenceRegistry* registry);
112			static void Initialize(Environment* env, v8::Local<v8::Object> target);
113			static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
114			static void Run(const v8::FunctionCallbackInfo<v8::Value>& args);
115
116			bool IsNotIndicativeOfMemoryLeakAtExit() const override {
117			return true;
118			}
119
120			void DoThreadPoolWork() override;
121			void AfterThreadPoolWork(int status) override;
122
123		50	Mode mode() const { return mode_; }
124
125			void MemoryInfo(MemoryTracker* tracker) const override;
126			SET_MEMORY_INFO_NAME(FixedSizeBlobCopyJob)
127			SET_SELF_SIZE(FixedSizeBlobCopyJob)
128
129			private:
130			FixedSizeBlobCopyJob(
131			Environment* env,
132			v8::Local<v8::Object> object,
133			Blob* blob,
134			Mode mode = Mode::ASYNC);
135
136			Mode mode_;
137			std::vector<BlobEntry> source_;
138			std::shared_ptr<v8::BackingStore> destination_;
139			size_t length_ = 0;
140			};
141
142			class BlobBindingData : public SnapshotableObject {
143			public:
144			explicit BlobBindingData(Environment* env, v8::Local<v8::Object> wrap);
145
146			using InternalFieldInfo = InternalFieldInfoBase;
147
148			SERIALIZABLE_OBJECT_METHODS()
149
150			static constexpr FastStringKey type_name{"node::BlobBindingData"};
151			static constexpr EmbedderObjectType type_int =
152			EmbedderObjectType::k_blob_binding_data;
153
154			void MemoryInfo(MemoryTracker* tracker) const override;
155		25	SET_SELF_SIZE(BlobBindingData)
156		25	SET_MEMORY_INFO_NAME(BlobBindingData)
157
158			struct StoredDataObject : public MemoryRetainer {
159			BaseObjectPtr<Blob> blob;
160			size_t length;
161			std::string type;
162
163		3	StoredDataObject() = default;
164
165			StoredDataObject(
166			const BaseObjectPtr<Blob>& blob_,
167			size_t length_,
168			const std::string& type_);
169
170			void MemoryInfo(MemoryTracker* tracker) const override;
171			SET_SELF_SIZE(StoredDataObject)
172			SET_MEMORY_INFO_NAME(StoredDataObject)
173			};
174
175			void store_data_object(
176			const std::string& uuid,
177			const StoredDataObject& object);
178
179			void revoke_data_object(const std::string& uuid);
180
181			StoredDataObject get_data_object(const std::string& uuid);
182
183			private:
184			std::unordered_map<std::string, StoredDataObject> data_objects_;
185			};
186
187			} // namespace node
188
189			#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
190			#endif // SRC_NODE_BLOB_H_