// 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. #ifndef V8_HEAP_CODE_OBJECT_REGISTRY_H_ #define V8_HEAP_CODE_OBJECT_REGISTRY_H_ #include <set> #include <vector> #include "src/base/macros.h" #include "src/common/globals.h" namespace v8 { namespace internal { // The CodeObjectRegistry holds all start addresses of code objects of a given // MemoryChunk. Each MemoryChunk owns a separate CodeObjectRegistry. The // CodeObjectRegistry allows fast lookup from an inner pointer of a code object // to the actual code object. class V8_EXPORT_PRIVATE CodeObjectRegistry { public: void RegisterNewlyAllocatedCodeObject(Address code); void RegisterAlreadyExistingCodeObject(Address code); void Clear(); void Finalize(); bool Contains(Address code) const; Address GetCodeObjectStartFromInnerAddress(Address address) const; private: // A vector of addresses, which may be sorted. This is set to 'mutable' so // that it can be lazily sorted during GetCodeObjectStartFromInnerAddress. mutable std::vector<Address> code_object_registry_; mutable bool is_sorted_ = true; }; } // namespace internal } // namespace v8 #endif // V8_HEAP_CODE_OBJECT_REGISTRY_H_