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33 lines
715 B
C++
33 lines
715 B
C++
/*
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* Copyright 2018-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.1
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*/
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#pragma once
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#include <stdint.h>
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namespace ser {
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template <typename T>
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class serializer;
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};
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class cache_temperature {
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float hit_rate;
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explicit cache_temperature(uint8_t hr) : hit_rate(hr/255.0f) {}
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public:
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uint8_t get_serialized_temperature() const {
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return hit_rate * 255;
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}
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cache_temperature() : hit_rate(0) {}
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explicit cache_temperature(float hr) : hit_rate(hr) {}
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explicit operator float() const { return hit_rate; }
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static cache_temperature invalid() { return cache_temperature(-1.0f); }
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friend struct ser::serializer<cache_temperature>;
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};
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