return ChunkedSource(url)
  }

  private fun newUnknownLengthSource(url: HttpUrl): Source {
    check(state == STATE_OPEN_RESPONSE_BODY) { "state: $state" }
    state = STATE_READING_RESPONSE_BODY
    carrier.noNewExchanges()
    return UnknownLengthSource(url)
  }

  /**
   * Sets the delegate of `timeout` to [Timeout.NONE] and resets its underlying timeout

          noNewExchangesEvent = !connection.noNewExchanges
          connection.noNewExchanges = true
          call.releaseConnectionNoEvents()
        }
      if (toClose != null) {
        toClose.closeQuietly()
        connectionListener.connectionClosed(connection)
      } else if (noNewExchangesEvent) {
        connectionListener.noNewExchanges(connection)
      }
    }
    return null
  }

    val toClose: Socket? =
      candidate.withLock {
        when {
          !healthy -> {
            noNewExchangesEvent = !candidate.noNewExchanges
            candidate.noNewExchanges = true
            call.releaseConnectionNoEvents()
          }

          candidate.noNewExchanges || !sameHostAndPort(candidate.route().address.url) -> {
            call.releaseConnectionNoEvents()
          }

          else -> {

          delegate = codec.socket.source,
          contentLength = -1L,
          isSocket = true,
        )
    }
  }

  fun noNewExchangesOnConnection() {
    codec.carrier.noNewExchanges()
  }

  fun cancel() {
    codec.cancel()
  }

  /**
   * Revoke this exchange's access to streams. This is necessary when a follow-up request is