code: func (r *Rx) Init(tx, rx []byte, sharedEventFDState *uint32) {
  	r.sharedEventFDState = sharedEventFDState
  	r.tx.Init(tx)
  	r.rx.Init(rx)
  }
docs: // Init initializes the receive queue with the given pipes, and shared state
  // pointer -- the latter is used to enable/disable eventfd notifications.