MillisMicrosTimer.hpp

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#pragma once
 
#include <AH/Settings/Warnings.hpp>
AH_DIAGNOSTIC_WERROR() // Enable errors on warnings
 
AH_DIAGNOSTIC_EXTERNAL_HEADER()
#include <AH/Arduino-Wrapper.h> // millis, micros
AH_DIAGNOSTIC_POP()
 
#include <AH/Settings/NamespaceSettings.hpp>
 
BEGIN_AH_NAMESPACE
 
using timefunction = unsigned long (*)();
 
 
template <timefunction time = micros>
class Timer {
  public:
    Timer(unsigned long interval) : interval(interval) {
#ifdef ARDUINO
        begin();
#endif
    }
    void begin() { previous = time() - interval; }
    void beginNextPeriod() { previous = time(); }
    explicit operator bool() {
        auto now = time();
        if (now - previous >= interval) {
            previous += interval;
            return true;
        }
        return false;
    }
 
    unsigned long getInterval() const { return interval; }
    void setInterval(unsigned long interval) { this->interval = interval; }
 
  private:
    unsigned long interval;
    unsigned long previous = 0;
};
 
 
END_AH_NAMESPACE
 
AH_DIAGNOSTIC_POP()