RecentHashCache.h

Go to the documentation of this file.

 
#pragma once
#include "HashCheckOptions.h"
#include "catapult/chain/ChainFunctions.h"
#include "catapult/utils/Hashers.h"
#include "catapult/types.h"
#include <unordered_map>
 
namespace catapult { namespace consumers {
 
    class RecentHashCache {
    public:
        RecentHashCache(const chain::TimeSupplier& timeSupplier, const HashCheckOptions& options);
 
    public:
        size_t size() const;
 
    public:
        bool add(const Hash256& hash);
 
        bool contains(const Hash256& hash) const;
 
    private:
        bool checkAndUpdateExisting(const Hash256& hash, const Timestamp& time);
 
        void pruneCache(const Timestamp& time);
 
        void tryAddToCache(const Hash256& hash, const Timestamp& time);
 
    private:
        chain::TimeSupplier m_timeSupplier;
        HashCheckOptions m_options;
        Timestamp m_lastPruneTime;
        std::unordered_map<Hash256, Timestamp, utils::ArrayHasher<Hash256>> m_cache;
    };
}}