monotonic.py 文件源码

def monotonic():
                """Monotonic clock, cannot go backward."""
                ts = timespec()
                if clock_gettime(CLOCK_MONOTONIC, ctypes.pointer(ts)):
                    errno = ctypes.get_errno()
                    raise OSError(errno, os.strerror(errno))
                return ts.tv_sec + ts.tv_nsec / 1.0e9

        # Perform a sanity-check.