In-process async store. Mutations on a key serialize in admission order;
reads see the latest committed value without waiting for pending mutations.
Clear and cleanup form barriers across all keys. An updater must not await
another mutation on its own key, clear(), or cleanup(), because those
operations wait for the updater to finish. Reentrancy detection is not provided.
In-process async store. Mutations on a key serialize in admission order; reads see the latest committed value without waiting for pending mutations. Clear and cleanup form barriers across all keys. An updater must not await another mutation on its own key, clear(), or cleanup(), because those operations wait for the updater to finish. Reentrancy detection is not provided.