AccountCounters.h

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#pragma once
#include "catapult/utils/Hashers.h"
#include "catapult/types.h"
#include <unordered_map>
 
namespace catapult { namespace cache {
 
    class AccountCounters {
    public:
        AccountCounters();
 
    public:
        size_t size() const;
 
        size_t deepSize() const;
 
        size_t count(const Key& key) const;
 
    public:
        void increment(const Key& key);
 
        void decrement(const Key& key);
 
        void reset();
 
    private:
        std::unordered_map<Key, size_t, utils::ArrayHasher<Key>> m_accountCounters;
        size_t m_totalUseCount;
    };
}}