Struct HandlerRegistry 

pub(crate) struct HandlerRegistry<H: ?Sized> {
    handlers: RwLock<Vec<Arc<H>>>,
}

A thread-safe, ordered collection of handlers.

Supports registration via interior mutability and snapshot-based iteration. The type parameter H is typically a dyn Trait for trait object storage.

Example

let registry = HandlerRegistry::<dyn MyHandler>::new();
registry.register(Arc::new(MyHandlerImpl));

for handler in &registry.handlers() {
    handler.handle();
}

Fields

handlers: RwLock<Vec<Arc<H>>>

Implementations

impl<H: ?Sized> HandlerRegistry<H>

pub fn new() -> Self

Create a new empty handler registry.

pub fn register(&self, handler: Arc<H>)

Register a new handler.

Handlers are stored in registration order.

pub fn handlers(&self) -> Vec<Arc<H>>

Get a snapshot of all registered handlers.

Returns a cloned Vec so that iteration does not hold the lock.

Trait Implementations

impl<H: ?Sized> Default for HandlerRegistry<H>

fn default() -> Self

Returns the “default value” for a type.