local_version_holder.h

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/**
 * @file    local_version_holder.h
 *
 * @date Mar 19, 2014
 * @author Andrey Belomutskiy, (c) 2012-2020
 */
 
#pragma once
 
#include "stdbool.h"
 
/**
 * this
 */
class LocalVersionHolder {
public:
    /**
     * Calling this method changes the internal state of the class - each consumer interested in tracking
     * changes should have it's own instance of this class
     *
     * @return true if 'globalVersion' has changed since last time we've invoked this method
     */
    bool isOld(int globalVersion);
    int getVersion() const;
 
private:
    /**
     * we want local version to be 'old' on instantiation
     */
    int localVersion = -1;
 
};