PeriodicTimer.hpp

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#ifndef PERIODIC_TIMER_HPP
#define PERIODIC_TIMER_HPP

#include <atomic>
#include <chrono>
#include <functional>
#include <memory>
#include <mutex>
#include <thread>

namespace msp {

class PeriodicTimer {
public:
    PeriodicTimer(const std::function<void()> funct,
                  const double period_seconds);

    ~PeriodicTimer() { stop(); }

    bool start();

    bool stop();

    double getPeriod() const { return period_us.count() / 1.e6; }

    void setPeriod(const double& period_seconds);

private:
    std::shared_ptr<std::thread> thread_ptr;
    std::function<void()> funct;
    std::chrono::duration<size_t, std::micro> period_us;
    std::timed_mutex mutex_timer;
    std::chrono::steady_clock::time_point tstart;

    std::atomic_flag running_ = ATOMIC_FLAG_INIT;
};

}  // namespace msp

#endif