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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>
namespace search { class AttributeVector; }
namespace search::attribute {
class AttributeHeader;
class Config;
}
namespace proton {
/**
* Class to calculate transient memory during load of attribute vector
* in the future based on current attribute vector and new config.
*/
class AttributeTransientMemoryCalculator
{
public:
AttributeTransientMemoryCalculator() = default;
~AttributeTransientMemoryCalculator() = default;
size_t operator()(const search::AttributeVector& attribute_vector,
const search::attribute::Config& new_config) const;
size_t operator()(const search::attribute::AttributeHeader& old_header,
const search::attribute::Config& new_config) const;
};
}
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