five.py 文件源码

def _monotonic():  # noqa
            t = timespec()
            if clock_gettime(CLOCK_MONOTONIC, ctypes.pointer(t)) != 0:
                errno_ = ctypes.get_errno()
                raise OSError(errno_, os.strerror(errno_))
            return t.tv_sec + t.tv_nsec * 1e-9