linux_timebase.hpp

#include <time.h>
 
#include "timebase.hpp"
 
extern struct timespec libxr_linux_start_time_spec;
 
namespace LibXR
{
class LinuxTimebase : public Timebase
{
 public:
  MicrosecondTimestamp _get_microseconds()
  {
    return MicrosecondTimestamp(static_cast<uint64_t>(GetElapsedMicroseconds()));
  }
 
  MillisecondTimestamp _get_milliseconds()
  {
    return MillisecondTimestamp(static_cast<uint32_t>(GetElapsedMicroseconds() / 1000LL));
  }
 
 private:
  static int64_t GetElapsedMicroseconds()
  {
    struct timespec ts = {};
    clock_gettime(CLOCK_MONOTONIC, &ts);
    return static_cast<int64_t>(ts.tv_sec - libxr_linux_start_time_spec.tv_sec) * 1000000LL +
           static_cast<int64_t>(ts.tv_nsec - libxr_linux_start_time_spec.tv_nsec) / 1000LL;
  }
};
}  // namespace LibXR