Struct RepoLayerSource 

pub struct RepoLayerSource<ObjectID: FsVerityHashValue> {
    pub repo: Arc<Repository<ObjectID>>,
    pub layer_verity: ObjectID,
}

LayerSource implementation backed by a composefs Repository.

The objects directory is the single real diff-dir (chain index 0).

Fields

repo: Arc<Repository<ObjectID>>

The repository from which to serve the layer.

layer_verity: ObjectID

fs-verity hash of the layer splitstream to serve.

Trait Implementations

impl<ObjectID> Debug for RepoLayerSource<ObjectID>

where ObjectID: FsVerityHashValue + Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<ObjectID> LayerSource for RepoLayerSource<ObjectID>

where ObjectID: FsVerityHashValue,

fn open(&self) -> Result<(Vec<OwnedFd>, Box<dyn Send + 'static>)>

Open the real diff-directory file descriptors for this layer, in chain order, AND acquire any lifetime-bound resources (e.g. a shared layer-store lock).

fn produce( &self, dirfd_index_map: &[u32], out: Box<dyn Write + Send>, ) -> Result<()>

Write the layer content as a splitdirfdstream to out.