thermometer.h

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#pragma once
 
#include "roo_logging.h"
#include "roo_quantity.h"
#include "roo_quantity/temperature.h"
 
namespace roo_control {
 
/// An abstraction of a thermometer, i.e., a device that reports temperature.
class Thermometer {
 public:
  /// Captures a temperature measured at a specific time.
  struct Reading {
    /// Measured temperature value.
    roo_quantity::Temperature value;
    /// Timestamp of the reading.
    roo_time::Uptime time;
  };
 
  virtual ~Thermometer() = default;
 
  /// Returns the latest available temperature reading.
  virtual Reading readTemperature() const = 0;
};
 
/// Streams a human-readable reading.
roo_logging::Stream &operator<<(roo_logging::Stream &os,
                                const Thermometer::Reading &r);
 
}  // namespace roo_control