asterinas/book/src/kernel/linux-compatibility/syscall-flag-coverage/system-information-and-misc/clock_nanosleep.scml

// Sleep with a specified clock
clock_nanosleep(
    clockid = CLOCK_REALTIME | CLOCK_MONOTONIC | CLOCK_BOOTTIME | CLOCK_PROCESS_CPUTIME_ID,
    flags =
        // Optional flags:
        //
        // Sleep until an absolute time point
        TIMER_ABSTIME,
    t, remain
);