LocalNodeChainScore.h

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#pragma once
#include "catapult/model/ChainScore.h"
#include "catapult/utils/SpinReaderWriterLock.h"
 
namespace catapult { namespace extensions {
 
    class LocalNodeChainScore {
    public:
        LocalNodeChainScore() = default;
 
        explicit LocalNodeChainScore(const model::ChainScore& score) : m_score (score)
        {}
 
    public:
        model::ChainScore get() const {
            auto readLock = m_lock.acquireReader();
            return m_score;
        }
 
        void set(const model::ChainScore& chainScore) {
            auto readLock = m_lock.acquireReader();
            auto writeLock = readLock.promoteToWriter();
            m_score = chainScore;
        }
 
    public:
        LocalNodeChainScore& operator+=(const model::ChainScore& rhs) {
            auto readLock = m_lock.acquireReader();
            auto writeLock = readLock.promoteToWriter();
            m_score += rhs;
            return *this;
        }
 
    private:
        model::ChainScore m_score;
        mutable utils::SpinReaderWriterLock m_lock;
    };
}}