New creates a new MessageQueue.

MessageQueue implements queue of want messages to send to peers.

DontHaveTimeoutManager pings a peer to estimate latency so it can set a reasonable upper bound on when to consider a DONT_HAVE request as timed out (when connected to a peer that doesn't support DONT_HAVE messages).

MessageNetwork is any network that can connect peers and generate a message sender.

PeerConnection is a connection to a peer that can be pinged, and the average latency measured.

Fires when a timeout occurs waiting for a response from a peer running an older version of Bitswap that doesn't support DONT_HAVE messages.