LifecycleService

smoldot_light::lifecycle_service

Struct LifecycleService 

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pub struct LifecycleService { /* private fields */ }
Expand description

Holder of the LifecycleState of one chain.

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impl LifecycleService

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pub fn new() -> Arc<Self>

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pub fn wait_for_subscriber(&self) -> Option<EventListener>

If no Subscription exists, returns a listener that resolves once one is created or the service is dropped. Returns None if a subscription already exists and there is nothing to wait for.

Lets the tasks that maintain the state stay idle while nobody is watching.

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pub async fn current(&self) -> LifecycleState

Returns the current state.

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pub async fn update(&self, f: impl FnOnce(&mut LifecycleState))

Modifies the state in place. Subscribers are woken up only if the state actually changed.

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pub fn subscribe(self: &Arc<Self>) -> Subscription

Subscribes to state changes. The subscription holds only a weak reference, so it never keeps the chain alive.

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impl Drop for LifecycleService

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fn drop(&mut self)

Executes the destructor for this type. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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