from posix.time cimport clock_gettime, timespec, CLOCK_BOOTTIME, CLOCK_MONOTONIC_RAW

cdef double readclock(int clock_id):
  cdef timespec ts
  cdef double current

  clock_gettime(clock_id, &ts)
  current = ts.tv_sec + (ts.tv_nsec / 1000000000.)
  return current


def monotonic_time():
  return readclock(CLOCK_MONOTONIC_RAW)

def sec_since_boot():
  return readclock(CLOCK_BOOTTIME)