Enum NodeStore 

pub enum NodeStore {
    Mem(MemoryStore),
    Fs(FsStore),
}

The blob + root storage service a crate::node::TransactorNode runs over, chosen by StoreSpec. Dispatch is an enum rather than a trait object so every existing impl BlobStore + RootStore / &dyn RootStore call site keeps working unchanged.

Variants

Mem(MemoryStore)

In-memory backend.

Fs(FsStore)

Filesystem backend.

Implementations

impl NodeStore

pub async fn open(spec: &StoreSpec, data_dir: &Path) -> Result<Self, StoreError>

Opens the storage service for spec, relative to data_dir for the filesystem backend.

Errors

Returns an error when the backing store cannot be opened.

Trait Implementations

impl BlobStore for NodeStore

fn put<'life0, 'life1, 'async_trait>( &'life0 self, bytes: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<BlobId, StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Stores bytes and returns their content id.

fn get<'life0, 'life1, 'async_trait>( &'life0 self, id: &'life1 BlobId, ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Loads bytes by id, returning None when missing.

fn contains<'life0, 'life1, 'async_trait>( &'life0 self, id: &'life1 BlobId, ) -> Pin<Box<dyn Future<Output = Result<bool, StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Reports whether a blob is present.

fn delete<'life0, 'life1, 'async_trait>( &'life0 self, id: &'life1 BlobId, ) -> Pin<Box<dyn Future<Output = Result<(), StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Deletes a blob during garbage collection. Missing blobs are ignored.

fn list<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<BlobIdStream, StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Lists all blob identifiers known to this backend.

fn modified_at<'life0, 'life1, 'async_trait>( &'life0 self, id: &'life1 BlobId, ) -> Pin<Box<dyn Future<Output = Result<Option<SystemTime>, StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Returns the blob’s creation/last-modification time when available. Backends without timestamps return None, which conservatively keeps the blob whenever a non-zero retention window is active.

impl RootStore for NodeStore

fn get_root<'life0, 'life1, 'async_trait>( &'life0 self, name: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Reads a root pointer.

fn cas_root<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, name: &'life1 str, expected: Option<&'life2 [u8]>, new: &'life3 [u8], ) -> Pin<Box<dyn Future<Output = Result<(), StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Publishes a root only if the stored pointer equals expected.

fn delete_root<'life0, 'life1, 'async_trait>( &'life0 self, name: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<(), StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Removes a root pointer. Missing roots are ignored.

fn list_roots<'life0, 'life1, 'async_trait>( &'life0 self, prefix: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Vec<String>, StoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Lists root names beginning with prefix, in sorted order.