os::sync::semaphore

Struct Semaphore

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pub struct Semaphore {
    pub inner: UPSafeCell<SemaphoreInner>,
}

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§inner: UPSafeCell<SemaphoreInner>

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impl Semaphore

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pub fn new(res_count: usize) -> Self

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pub fn up(&self)

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pub fn down(&self)

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

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