Struct tokio::sync::SemaphorePermit

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pub struct SemaphorePermit<'a> { /* private fields */ }
Expand description

A permit from the semaphore.

This type is created by the acquire method.

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impl<'a> SemaphorePermit<'a>

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pub fn forget(self)

Forgets the permit without releasing it back to the semaphore. This can be used to reduce the amount of permits available from a semaphore.

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pub fn merge(&mut self, other: Self)

Merge two SemaphorePermit instances together, consuming other without releasing the permits it holds.

Permits held by both self and other are released when self drops.

Panics

This function panics if permits from different Semaphore instances are merged.

Trait Implementations§

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impl<'a> Debug for SemaphorePermit<'a>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Drop for SemaphorePermit<'_>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a> !RefUnwindSafe for SemaphorePermit<'a>

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impl<'a> Send for SemaphorePermit<'a>

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impl<'a> Sync for SemaphorePermit<'a>

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impl<'a> Unpin for SemaphorePermit<'a>

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impl<'a> !UnwindSafe for SemaphorePermit<'a>

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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, U> TryFrom<U> for Twhere 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 Twhere 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.