logWithTime("callEnd")
  }

  override fun callFailed(
    call: Call,
    ioe: IOException,
  ) {
    logWithTime("callFailed: $ioe")
  }

  override fun canceled(call: Call) {
    logWithTime("canceled")
  }

  override fun satisfactionFailure(
    call: Call,
    response: Response,
  ) {
    logWithTime("satisfactionFailure: $response")
  }

  override fun cacheHit(

  @Throws(IOException::class)
  fun peekTrailers(): Headers?

  /**
   * Cancel this stream. Resources held by this stream will be cleaned up, though not synchronously.
   * That may happen later by the connection pool thread.
   */
  fun cancel()

  /**
   * Carries an exchange. This is usually a connection, but it could also be a connect plan for

					_ = syscall.SetsockoptString(int(fdPtr), syscall.SOL_SOCKET, syscall.SO_BINDTODEVICE, opts.Interface)
				}
			})
			return nil
		},
	}

	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
	defer cancel()

	l, err := lc.Listen(ctx, "tcp", net.JoinHostPort(host, port))
	if err != nil {
		return err
	}

	// As we are able to listen on this network, the port is not in use.

  }

  public void testListenerCalledOnCancelFromRunning() throws Exception {
    exec.execute(task);
    runLatch.await();

    // Task has started up, cancel it while it's running.
    task.cancel(true);
    assertTrue(task.isDone());
    assertTrue(task.isCancelled());
    assertEquals(1, taskLatch.getCount());

    // Wait for the listeners to be called.

  object : BufferedSocket {
    private val delegate = this@asBufferedSocket
    override val source = delegate.source.buffer()
    override val sink = delegate.sink.buffer()

    override fun cancel() {
      delegate.cancel()
    }

Calls can be canceled from any thread. This will fail the call if it hasn’t yet completed! Code that is writing the request body or reading the response body will suffer an `IOException` when its call is canceled.

## Dispatch

    val server = serverListener.assertOpen()

    // Initiate a close on the client, which will schedule a hard cancel in 500 ms.
    val closeAtNanos = System.nanoTime()
    webSocket.close(1000, "goodbye", 500L)
    serverListener.assertClosing(1000, "goodbye")

    // Confirm that the hard cancel occurred after 500 ms.
    clientListener.assertFailure()
    val elapsedUntilFailure = System.nanoTime() - closeAtNanos

  }

  public void testCancelled() throws Exception {
    TrustedListenableFutureTask<Integer> task = TrustedListenableFutureTask.create(returning(2));
    assertFalse(task.isDone());
    task.cancel(false);
    assertTrue(task.isDone());
    assertTrue(task.isCancelled());
    assertFalse(task.wasInterrupted());
    assertThrows(CancellationException.class, () -> getDone(task));
    verifyThreadWasNotInterrupted();

  override val isReady = false

  override fun connectTcp() = result

  override fun connectTlsEtc() = result

  override fun handleSuccess() = error("unexpected call")

  override fun cancel() = error("unexpected cancel")

  override fun retry() = error("unexpected retry")

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal.http2

import java.io.IOException

/** Thrown when an HTTP/2 stream is canceled without damage to the socket that carries it. */
class StreamResetException(
  @JvmField val errorCode: ErrorCode,