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RecoverableMutex

Struct RecoverableMutex 

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pub struct RecoverableMutex<T> {
    inner: Mutex<T>,
    holder: AtomicI16,
}

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§inner: Mutex<T>§holder: AtomicI16

保持中のコア ID(FREE = 未保持)。

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impl<T> RecoverableMutex<T>

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pub const fn new(value: T) -> Self

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pub fn lock(&self) -> RecGuard<'_, T>

ロックを取得する。spin::Mutex 同様 RAII ガードを返す(API 互換)。

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pub fn try_lock(&self) -> Option<RecGuard<'_, T>>

取得を試み、すでにロック中なら None を返す(デッドロックしない。検証/回復確認用)。

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pub unsafe fn force_release_if_core(&self, cid: i16)

パニック回復専用: コア cid が保持中ならロックを強制解放する。

§Safety

呼び出し元(パニックハンドラ)は、コア cid の現在の実行が直後に破棄される (scheduler::exit() で別プロセスへ切替わる)ことを保証すること。保持していた クリティカルセクションの不変条件は失われる前提で呼ぶ。

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impl<T> !Freeze for RecoverableMutex<T>

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impl<T> !RefUnwindSafe for RecoverableMutex<T>

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impl<T> Unpin for RecoverableMutex<T>
where T: Unpin,

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impl<T> UnsafeUnpin for RecoverableMutex<T>
where T: UnsafeUnpin,

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impl<T> UnwindSafe for RecoverableMutex<T>
where T: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.