Enum http::header::map::Danger

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enum Danger {
    Green,
    Yellow,
    Red(RandomState),
}
Expand description

Tracks the header map danger level! This relates to the adaptive hashing algorithm. A HeaderMap starts in the “green” state, when a large number of collisions are detected, it transitions to the yellow state. At this point, the header map will either grow and switch back to the green state OR it will transition to the red state.

When in the red state, a safe hashing algorithm is used and all values in the header map have to be rehashed.

Variants§

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Green

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Yellow

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Red(RandomState)

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impl Danger

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fn is_red(&self) -> bool

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fn to_red(&mut self)

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fn is_yellow(&self) -> bool

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fn to_yellow(&mut self)

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fn to_green(&mut self)

Trait Implementations§

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impl Clone for Danger

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fn clone(&self) -> Danger

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl Freeze for Danger

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impl RefUnwindSafe for Danger

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impl Send for Danger

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impl Sync for Danger

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impl Unpin for Danger

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impl UnwindSafe for Danger

Blanket Implementations§

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.