seminix 0.1.56

seminix 内核标准库
Documentation 
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use core::sync::atomic::{self, Ordering};

use super::barrier;

#[inline(always)]
pub(crate) fn arch_set_my_processor_id(_: usize) {}

#[inline(always)]
pub(crate) fn arch_my_processor_id() -> usize {
    unreachable!()
}

#[inline(always)]
pub(crate) fn arch_cpu_relax() {
    unreachable!()
}

#[inline(always)]
pub(crate) fn arch_cpu_wfe() {
    unreachable!()
}

#[inline(always)]
pub(crate) fn arch_smp_mb_acquire() {
    barrier();
    atomic::fence(Ordering::Acquire);
}

#[inline(always)]
pub(crate) fn arch_smp_mb_release() {
    barrier();
    atomic::fence(Ordering::Release);
}

#[inline(always)]
pub(crate) fn arch_smp_mb() {
    barrier();
    atomic::fence(Ordering::SeqCst);
}

#[inline(always)]
pub(crate) fn arch_isb() {
    barrier();
}