Struct ResourceRegistry 

pub struct ResourceRegistry<T> { /* private fields */ }

Registry of named shared resources.

Used in GraphBuilder::build() to allocate resources and distribute capability handles to graph nodes.

Implementations

impl<T> ResourceRegistry<T>

pub fn new() -> Self

Create an empty registry.

pub fn register_tape(&mut self, name: impl Into<String>, tape: TapeLoop<T>)

Register a named tape loop, creating its writer/reader capability pair.

pub fn reader(&self, name: &str) -> Option<TapeReader<T>>

Acquire a read capability for the named tape (cloneable, many taps).

pub fn writer(&mut self, name: &str) -> Option<TapeWriter<T>>

Acquire the unique write capability for the named tape.

Returns Some only on the first call for a given name; subsequent calls return None. This enforces the single-writer invariant.

pub fn len(&self) -> usize

Number of registered resources.

pub fn is_empty(&self) -> bool

Whether no resources are registered.

Trait Implementations

impl<T> Default for ResourceRegistry<T>

fn default() -> Self

Returns the “default value” for a type.