Function clock_getres

src/backend/linux_raw/time/syscalls.rs:25–42

(id: ClockId)

#[inline]
#[must_use]
pub(crate) fn clock_getres(id: ClockId) -> Timespec {
    #[cfg(target_pointer_width = "32")]
    unsafe {
        let mut result = MaybeUninit::<Timespec>::uninit();
        if let Err(err) = ret(syscall!(__NR_clock_getres_time64, id, &mut result)) {
            // See the comments in `clock_gettime_via_syscall` about emulation.
            debug_assert_eq!(err, io::Errno::NOSYS);
            clock_getres_old(id, &mut result);
        }
        result.assume_init()
    }
    #[cfg(target_pointer_width = "64")]
    unsafe {
        let mut result = MaybeUninit::<Timespec>::uninit();
        ret_infallible(syscall!(__NR_clock_getres, id, &mut result));
        result.assume_init()
    }
}

#[cfg(target_pointer_width = "32")]
unsafe fn clock_getres_old(id: ClockId, result: &mut MaybeUninit<Timespec>) {