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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <cstddef>
#include <cstdint>
#include <vector>
namespace vespalib::datastore {
/*
* This class provides mapping between type ids and array sizes needed for
* storing a value with size smaller than or equal to the array size.
*
* The array sizes vector is a monotonic strictly increasing sequence that might end
* with exponential growth.
*/
class ArrayStoreTypeMapper
{
protected:
std::vector<uint32_t> _array_sizes;
public:
ArrayStoreTypeMapper();
~ArrayStoreTypeMapper();
uint32_t get_type_id(size_t array_size) const;
size_t get_array_size(uint32_t type_id) const;
uint32_t get_max_type_id(uint32_t max_type_id) const noexcept;
};
}
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