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#ifndef _TIMESTAMP_H___
#define _TIMESTAMP_H___
#include <time.h>
#include <linux/can/bcm.h>
namespace amb {
double currentTime();
/*!
* \brief The Timestamp class provides system time and monotonic time helper functions
* Timestamp is meant to be a singleton class. Access through instance().
* \code
* double currentMonotonicTime = amb::Timestamp::instance()->currentTime();
* double epocTimeForMonotonicTime = amb::Timestamp::instance()->epochTime(currentMonotonicTime);
* \endcode
*/
class Timestamp {
protected:
Timestamp();
public:
/*!
* \brief currentTime
* \return current monotonic (steady) time in seconds.
*/
double currentTime();
double currentTime(double time);
/*!
* \brief epochTime
* \param time monotonic time usually from currentTime()
* \return number of seconds.milliseconds since unix epoch
*/
double epochTime(double time);
/*!
* \brief epochTime
* \return current system time in seconds since unix epoch
*/
double epochTime();
static double fromTimeval(const struct ::timeval& tv);
static struct ::timeval toTimeval(const double time);
static struct ::bcm_timeval toBcmTimeval(const double time);
public:
/*!
* \brief instance
* \return instance of Timestamp;
*/
static Timestamp *instance();
private:
double startTimeEpoch;
static Timestamp* mInstance;
};
}
#endif
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