rama::graceful

Struct WeakShutdownGuard

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

A weak guard, linked to a Shutdown struct, is similar to a ShutdownGuard but does not prevent the Shutdown::shutdown future from completing.

Implementations§

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impl WeakShutdownGuard

pub async fn cancelled(&self)

Returns a Future that gets fulfilled when cancellation (shutdown) is requested and the delay (buffer) duration has been awaited on.

Use Self::shutdown_signal_triggered in case you want to get a future which is triggered immediately when the shutdown signal is received, without waiting for the delay duration first.

The future will complete immediately if the token is already cancelled when this method is called.

§Cancel safety

This method is cancel safe.

§Panics

This method panics if the iternal mutex is poisoned while being used.

pub async fn shutdown_signal_triggered(&self)

Returns a Future that gets fulfilled when cancellation (shutdown) is requested without awaiting the delay duration first, if one is set.

In case no delay has been configured for the parent Shutdown, this function will be equal in behaviour to Self::cancelled.

Use Self::cancelled in case you want to get a future which is triggered when the shutdown signal is received and thethe delay duration is awaited.

The future will complete immediately if the token is already cancelled when this method is called.

§Cancel safety

This method is cancel safe.

§Panics

This method panics if the iternal mutex is poisoned while being used.

pub async fn into_cancelled(self)

Returns a Future that gets fulfilled when cancellation (shutdown) is requested.

In contrast to ShutdownGuard::cancelled this method consumes the guard, ensuring the guard is dropped once the future is fulfilled.

The future will complete immediately if the token is already cancelled when this method is called.

§Cancel safety

This method is cancel safe.

§Panics

This method panics if the iternal mutex is poisoned while being used.

pub fn upgrade(self) -> ShutdownGuard

Upgrades the weak guard to a ShutdownGuard, ensuring that the guard has to be dropped prior to being able to complete the Shutdown::shutdown future.

Trait Implementations§

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impl Clone for WeakShutdownGuard

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fn clone(&self) -> WeakShutdownGuard

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 WeakShutdownGuard

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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 From<WeakShutdownGuard> for ShutdownGuard

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fn from(weak_guard: WeakShutdownGuard) -> ShutdownGuard

Converts to this type from the input type.

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