if (socketSourceDone) socketSourceOpen = false
        allStreamsDone = !requestBodyOpen &&
          !responseBodyOpen &&
          !socketSinkOpen &&
          !socketSourceOpen
        callDone = allStreamsDone && !expectMoreExchanges
      }
    }

    if (allStreamsDone) {
      this.exchange = null
      this.connection?.incrementSuccessCount()
    }