Module spacetimedb_table::blob_store

Provides the interface BlobStore that tables use to talk to a blob store engine for large var-len objects.

These blob objects are referred to by their BlobHash, which is currently defined through BLAKE3 on the bytes of the blob object.

Two simple implementations are provided, primarily for tests and benchmarking.

• NullBlobStore, a blob store that always panics. Used when ensuring that the blob store is unreachable in a scenario.
• HashMapBlobStore, a blob store backed by a HashMap that refcounts blob objects. It is not optimize and is mainly intended for testing purposes.

Structs

• BlobHash
  The content address of a blob-stored object.
• HashMapBlobStore
  A blob store that is backed by a hash map with a reference counted value. Used for tests when you need an actual blob store.
• NoSuchBlobError
  An error that signifies that a BlobHash wasn’t associated with a large blob object.
• NullBlobStore
  A blob store that panics on all operations. Used for tests when you want to ensure that the blob store isn’t used.

Traits

• BlobStore
  The interface that tables use to talk to the blob store engine for large var-len objects.