Struct zng::update::WeakOnUpdateHandle

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pub struct WeakOnUpdateHandle(/* private fields */);
Expand description

Weak OnUpdateHandle.

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impl WeakOnUpdateHandle

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pub fn new() -> WeakOnUpdateHandle

New weak handle that does not upgrade.

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pub fn upgrade(&self) -> Option<OnUpdateHandle>

Gets the strong handle if it is still subscribed.

Trait Implementations§

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impl Clone for WeakOnUpdateHandle

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fn clone(&self) -> WeakOnUpdateHandle

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
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impl Debug for WeakOnUpdateHandle

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

Formats the value using the given formatter. Read more
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impl Default for WeakOnUpdateHandle

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fn default() -> WeakOnUpdateHandle

Returns the “default value” for a type. Read more
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impl Hash for WeakOnUpdateHandle

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for WeakOnUpdateHandle

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fn eq(&self, other: &WeakOnUpdateHandle) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for WeakOnUpdateHandle

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impl StructuralPartialEq for WeakOnUpdateHandle

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