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// 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_
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