alive_supervision.h

#ifndef ALIVE_SUPERVISION_H
#define ALIVE_SUPERVISION_H
 
#include <atomic>
#include <chrono>
#include <future>
#include "./elementary_supervision.h"
 
namespace ara
{
    namespace phm
    {
        namespace supervisors
        {
            class AliveSupervision : public ElementarySupervision
            {
            private:
                static const TypeOfSupervision cSupervisionType;
                
                const uint16_t mExpectedAliveIndicationsMin;
                const uint16_t mExpectedAliveIndicationsMax;
                const uint8_t mFailedReferenceCyclesTolerance;
 
                uint8_t mAliveCounter;
                std::atomic_bool mRunning;
                std::atomic_uint16_t mAliveIndications;
                std::future<void> mFuture;
 
                void supervise(std::chrono::milliseconds aliveReferenceCycle);
 
            public:
                AliveSupervision(
                    uint16_t expectedAliveIndications,
                    uint16_t minMargin,
                    uint16_t maxMargin,
                    std::chrono::milliseconds aliveReferenceCycle,
                    uint8_t failedReferenceCyclesTolerance);
 
                AliveSupervision() = delete;
                ~AliveSupervision();
 
                void ReportAliveness() noexcept;
            };
        }
    }
}
 
#endif