Determine which peers to communicate with
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germsvel commented
We currently have part of the ethereum wire protocol (sub-protocol) v62 implemented in lib/ex_wire/sync.ex. Thus far, that module can send GetBlockHeaders, GetBlockBodies, and receives BlockHeaders and BlockBodies. But when we need to send out a message, we ask the supervisor of all the peers (ExWire.PeerSupervisor) to send the message to all peers.
I do know if that is the best way to handle requesting things like GetBlockHeaders, or if we should be targeting a particular peer (if we have received a message from it), or if we should be doing it round robin or something like that.