T result = operation.get();
                long responseTime = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startTime);
                onSuccess(responseTime);
                return result;
            } catch (Exception e) {
                long responseTime = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startTime);
                onFailure(e, responseTime);
                if (e instanceof CIFSException) {

    }
  }

  internal fun incrementSuccessCount() {
    withLock {
      successCount++
    }
  }

  @Throws(IOException::class)
  fun start() {
    idleAtNs = System.nanoTime()
    if (protocol == Protocol.HTTP_2 || protocol == Protocol.H2_PRIOR_KNOWLEDGE) {
      startHttp2()
    }
  }

  @Throws(IOException::class)
  private fun startHttp2() {

        if (routePlanner.isCanceled()) throw IOException("Canceled")

        // Launch a new connection if we're ready to.
        val now = taskRunner.backend.nanoTime()
        var awaitTimeoutNanos = nextTcpConnectAtNanos - now
        var connectResult: ConnectResult? = null
        if (tcpConnectsInFlight.isEmpty() || awaitTimeoutNanos <= 0) {
          connectResult = launchTcpConnect()

        .url("http://" + TestUtil.UNREACHABLE_ADDRESS_IPV4)
        .build()
    val call = client.newCall(request1)
    val startNanos = System.nanoTime()
    assertFailsWith<SocketTimeoutException> {
      call.execute()
    }
    val elapsedNanos = System.nanoTime() - startNanos
    org.junit.jupiter.api.Assertions.assertTrue(
      elapsedNanos < TimeUnit.SECONDS.toNanos(5),

      this.unit = unit;
    }

    @Override
    public void run() {
      startTime = System.nanoTime();
      try {
        future.get(timeout, unit);
      } catch (Exception e) {
        // nothing
        exception = e;
      } finally {
        timeSpentBlocked = System.nanoTime() - startTime;
      }
    }

 * deadline if one exists already.
 */
@Throws(IOException::class)
internal fun Source.skipAll(
  duration: Int,
  timeUnit: TimeUnit,
): Boolean {
  val nowNs = System.nanoTime()
  val originalDurationNs =
    if (timeout().hasDeadline()) {
      timeout().deadlineNanoTime() - nowNs
    } else {
      Long.MAX_VALUE
    }

      this.unit = unit;
    }

    @Override
    public void run() {
      startTime = System.nanoTime();
      try {
        future.get(timeout, unit);
      } catch (Exception e) {
        // nothing
        exception = e;
      } finally {
        timeSpentBlocked = System.nanoTime() - startTime;
      }
    }

  private val cleanupQueue: TaskQueue = taskRunner.newQueue()
  private val cleanupTask =
    object : Task("$okHttpName ConnectionPool connection closer") {
      override fun runOnce(): Long = closeConnections(System.nanoTime())
    }

  private fun AddressState.scheduleOpener() {
    queue.schedule(
      object : Task("$okHttpName ConnectionPool connection opener") {

    val index = calls.indexOfFirst { it.get() == this@RealCall }
    check(index != -1)

    calls.removeAt(index)
    this.connection = null

    if (calls.isEmpty()) {
      connection.idleAtNs = System.nanoTime()
      if (connectionPool.connectionBecameIdle(connection)) {
        return connection.socket()
      }
    }

    return null
  }

  private fun timeoutExit(cause: IOException?): IOException? {

      // the extra memory consumption and indirection are more
      // expensive than the extra volatile reads.
      long nanos = expirationNanos;
      long now = System.nanoTime();
      if (nanos == 0 || now - nanos >= 0) {
        synchronized (lock) {
          if (nanos == expirationNanos) { // recheck for lost race
            T t = delegate.get();
            value = t;