Struct SharedKvBlobStore 

pub struct SharedKvBlobStore<'a, S, const KB: usize> { /* private fields */ }

Combines a (store-only) raw KvBlobStore with a scratch buffer to present a full KvBlobStoreAccess.

This is the concrete type returned by Matter::kv, where the buffer is owned by Matter. It owns the user’s raw store (behind a blocking mutex for interior mutability) and borrows the buffer. The buffer lock is always taken first, then the store lock, so the two-lock order is consistent across all persistence paths (and single-threaded executors never actually block on either).

It can also be constructed directly (e.g. in tests, or to exercise a persistence-consuming API without a real store) by pairing a DummyKvBlobStore with a caller-owned buffer.

Implementations

impl<'a, S, const KB: usize> SharedKvBlobStore<'a, S, KB>

pub const fn new( store: S, buf: &'a Mutex<RefCell<[u8; KB]>>, ) -> SharedKvBlobStore<'a, S, KB>

Create a new access object owning store and borrowing buf.

Trait Implementations

impl<S, const KB: usize> KvBlobStoreAccess for SharedKvBlobStore<'_, S, KB>

where S: KvBlobStore,

fn access<F, R>(&self, f: F) -> R

where F: FnOnce(&mut dyn KvBlobStore, &mut [u8]) -> R,

Get the KvBlobStore instance and buffer provided by this access.