Crate ruchei_callback

Callbacks used in ruchei stream adapters.

Placed in a separate crate to improve compatibility across ruchei versions, since the bigger crate is still at 0.0.X, at the time of writing, and there are no plans of changing that yet.

Traits

• OnClose
  Act when one of inner channels gets closed instead of closing the outer channel. Used with multicast.
• OnItem
  Used with ReadCallback.
• Start
  Start a timer Future. Used with TimeoutUnused.