Botond Dénes a011a9ebf2 mutation_reader: multishard_combining_reader: support custom dismantler ...

Add a dismantler functor parameter. When the multishard reader is
destroyed this functor will be called for each shard reader, passing a
future to a `stopped_foreign_reader`. This future becomes available when
the shard reader is stopped, that is, when it finished all in-progress
read-aheads and/or pending next partition calls.

The intended use case for the dismantler functor is a client that needs
to be notified when readers are destroyed and/or has to have access to
any unconsumed fragments from the foreign readers wrapping the shard
readers.

2018-09-03 10:31:44 +03:00

54 KiB

Raw Blame History

View Raw