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Use LocalIrqDisable in Subject

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This commit is contained in:
Ruihan Li
2024-10-03 23:10:27 +08:00
committed by Tate, Hongliang Tian
parent 2ddcd2d9a7
commit 96efd62007
1 changed files with 2 additions and 1 deletions
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3
kernel/src/events/subject.rs
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@ -3,6 +3,7 @@
use core::sync::atomic::{AtomicUsize, Ordering}; use core::sync::atomic::{AtomicUsize, Ordering};
use keyable_arc::KeyableWeak; use keyable_arc::KeyableWeak;
use ostd::sync::LocalIrqDisabled;
use super::{Events, EventsFilter, Observer}; use super::{Events, EventsFilter, Observer};
use crate::prelude::*; use crate::prelude::*;
@ -10,7 +11,7 @@ use crate::prelude::*;
/// A Subject notifies interesting events to registered observers. /// A Subject notifies interesting events to registered observers.
pub struct Subject<E: Events, F: EventsFilter<E> = ()> { pub struct Subject<E: Events, F: EventsFilter<E> = ()> {
// A table that maintains all interesting observers. // A table that maintains all interesting observers.
observers: SpinLock<BTreeMap<KeyableWeak<dyn Observer<E>>, F>>, observers: SpinLock<BTreeMap<KeyableWeak<dyn Observer<E>>, F>, LocalIrqDisabled>,
// To reduce lock contentions, we maintain a counter for the size of the table // To reduce lock contentions, we maintain a counter for the size of the table
num_observers: AtomicUsize, num_observers: AtomicUsize,
} }