SensorManager.hpp

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#ifndef __blip_SensorManager_hpp
#define __blip_SensorManager_hpp

#include <deque>
#include <vector>

#include <blip/Blip.hpp>
#include <blip/Sensor.hpp>

struct ALooper;
struct ASensorEvent;
struct ASensorEventQueue;
struct ASensorManager;

namespace blip {

class SensorEvent;

class SensorManager
{
  friend class NativeActivity;

  public:

  ~SensorManager();

  int getSensorCount() const;

  Sensor* getSensor(int index);

  Sensor* getDefaultSensor(Sensor::Type type);

  bool enableSensor(Sensor* sensor);

  bool disableSensor(Sensor* sensor);

  bool setSensorEventRate(Sensor* sensor, timespan_us_t rate);

  private: // Called by NativeActivity

  SensorManager(ALooper* looper, int id);

  bool hasEvents();
  SensorEvent* nextEvent();
  void finishEvent(SensorEvent* event);

  private:

  void loadSensors();
  SensorEvent* buildEvent(ASensorEvent* event);

  static const int EVENT_BUF_SIZE;

  ASensorManager* _sensorMgr;
  std::vector<Sensor*> _sensors;
  ASensorEventQueue* _queue;
  ASensorEvent* _eventBuf;
  std::deque<SensorEvent*> _events;

  CCXX_COPY_DECLS(SensorManager);
};

} // namespace blip

#endif // __blip_SensorManager_hpp