Channel usage

[jrhea]

What is the best way to utilize channels for event/message passing in imp?

• one complication is that mothra is dependent on an older version of tokio bc of libp2p.
  Options:
  • https://docs.rs/tokio-compat/0.1.5/tokio_compat/
  • callbacks between mothra and P2P service

Once a solution is settled on it should probably be pushed to mothra to abstract away the issue

• another issue is the design of two way communication between services.
  • Do I create a separate tx/rx pair for each communication dir?
  • would broadcast channels help?

https://docs.rs/tokio/0.2.18/tokio/sync/broadcast/index.html

• consider just using the watch channel for shutdown command

• combining mpsc and oneshot might be a hand way to setup a req/resp style pattern

• should I design an event bus abstraction to simplify usage?