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ChangeWaiter

rama::utils::reactive

Struct ChangeWaiter 

pub struct ChangeWaiter { /* private fields */ }
Available on crate feature std only.
Expand description

A ChangeListener that one task awaits: see Self::wait.

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impl ChangeWaiter

pub fn new() -> Arc<ChangeWaiter> ⓘ

Available on crate features grpc and http only.

Create a waiter to subscribe before checking the state it waits for.

pub fn listener(self: &Arc<ChangeWaiter>) -> Weak<dyn ChangeListener>

Available on crate features grpc and http only.

The waiter as a listener to subscribe.

pub async fn wait(&self)

Available on crate features grpc and http only.

Wait for a change since this waiter subscribed, or since the last wait.

Trait Implementations§

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impl ChangeListener for ChangeWaiter

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fn changed(&self, _: Change)

The source changed.
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impl Debug for ChangeWaiter

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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 ChangeWaiter

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fn default() -> ChangeWaiter

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

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