pex_reactor.go
func (r *PEXReactor) ReachedMaxMsgCountForPeer(addr string) bool {
	return r.msgCountByPeer.Get(addr).(uint16) >= r.maxMsgCountByPeer
}
func (r *PEXReactor) ReachedMaxMsgCountForPeer(addr string) bool {
	return r.msgCountByPeer.Get(addr).(uint16) >= r.maxMsgCountByPeer
}
// ReachedMaxMsgCountForPeer returns true if we received too many
// messages from peer with address `addr`.
// NOTE: assumes the value in the CMap is non-nil