Enum ShutdownHook 

pub enum ShutdownHook {
    Sync(Box<dyn FnOnce() + Send>),
    AsyncFactory(Box<dyn FnOnce() -> Pin<Box<dyn Future<Output = ()> + Send>> + Send>),
}

A shutdown hook to run during cleanup.

Variants

Sync(Box<dyn FnOnce() + Send>)

Synchronous cleanup function.

AsyncFactory(Box<dyn FnOnce() -> Pin<Box<dyn Future<Output = ()> + Send>> + Send>)

Factory for async cleanup future.

Implementations

impl ShutdownHook

pub fn run(self) -> Option<Pin<Box<dyn Future<Output = ()> + Send>>>

Run the hook synchronously.

For async hooks, this returns the future to await.