Trait TagCounter

pub trait TagCounter: TagDrop + Sized {
    // Required method
    fn on_create(&self, inner: &HashAndFormat);

    // Provided methods
    fn as_weak(self: &Arc<Self>) -> Weak<dyn TagDrop> { ... }
    fn temp_tag(self: &Arc<Self>, inner: HashAndFormat) -> TempTag { ... }
}

A trait for things that can track liveness of blobs and collections.

This trait works together with TempTag to keep track of the liveness of a blob or collection.

It is important to include the format in the liveness tracking, since protecting a collection means protecting the blob and all its children, whereas protecting a raw blob only protects the blob itself.

Required Methods

fn on_create(&self, inner: &HashAndFormat)

Called on creation of a temp tag

Provided Methods

fn as_weak(self: &Arc<Self>) -> Weak<dyn TagDrop>

Get this as a weak reference for use in temp tags

fn temp_tag(self: &Arc<Self>, inner: HashAndFormat) -> TempTag

Create a new temp tag for the given hash and format

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl TagCounter for RwLock<TempCounterMap>

Available on crate feature fs-store only.

fn on_create(&self, content: &HashAndFormat)

Implementors