directory: Path,
  maxSize: Long,
  fileSystem: FileSystem,
  taskRunner: TaskRunner,
) : Closeable, Flushable {
  /** Create a cache of at most [maxSize] bytes in [directory]. */
  constructor(
    fileSystem: FileSystem,
    directory: Path,
    maxSize: Long,
  ) : this(
    directory,
    maxSize,
    fileSystem,
    TaskRunner.INSTANCE,
  )

import javax.net.ssl.SSLSocket
import javax.net.ssl.SSLSocketFactory
import okhttp3.Protocol
import okhttp3.Protocol.Companion.get
import okhttp3.internal.closeQuietly
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.http2.Header
import okhttp3.internal.http2.Http2Connection
import okhttp3.internal.http2.Http2Stream
import okhttp3.internal.platform.Platform
import okhttp3.tls.internal.TlsUtil.localhost

  @RegisterExtension @JvmField
  val testLogHandler = TestLogHandler(taskFaker.logger)

  private val taskRunner = taskFaker.taskRunner
  private val log = mutableListOf<String>()
  private val redQueue = taskRunner.newQueue()
  private val blueQueue = taskRunner.newQueue()
  private val greenQueue = taskRunner.newQueue()

  @AfterEach
  internal fun tearDown() {
    taskFaker.close()
  }

 * in sequence.
 */
@ExperimentalOkHttpApi
class MockWebServer : Closeable {
  private val taskRunnerBackend =
    TaskRunner.RealBackend(
      threadFactory("MockWebServer TaskRunner", daemon = false),
    )
  private val taskRunner = TaskRunner(taskRunnerBackend)
  private val requestQueue = LinkedBlockingQueue<RecordedRequest>()
  private val openClientSockets =

  val loggingEnabled = isLoggable(Level.FINE)
  if (loggingEnabled) {
    startNs = queue.taskRunner.backend.nanoTime()
    log(task, queue, "starting")
  }

  var completedNormally = false
  try {
    val result = block()
    completedNormally = true
    return result
  } finally {
    if (loggingEnabled) {
      val elapsedNs = queue.taskRunner.backend.nanoTime() - startNs
      if (completedNormally) {

HSPLokhttp3/internal/concurrent/TaskRunner$RealBackend;->nanoTime()J
HSPLokhttp3/internal/concurrent/TaskRunner$runnable$1;-><init>(Lokhttp3/internal/concurrent/TaskRunner;)V
HSPLokhttp3/internal/concurrent/TaskRunner$runnable$1;->run()V
HSPLokhttp3/internal/concurrent/TaskRunner;-><clinit>()V
HSPLokhttp3/internal/concurrent/TaskRunner;-><init>(Lokhttp3/internal/concurrent/TaskRunner$Backend;Ljava/util/logging/Logger;I)V

          "please call response.close()"
      }
      check(!requestBodyOpen)
    }

    if (newRoutePlanner) {
      val routePlanner =
        RealRoutePlanner(
          taskRunner = client.taskRunner,
          connectionPool = connectionPool,
          readTimeoutMillis = client.readTimeoutMillis,
          writeTimeoutMillis = client.writeTimeoutMillis,

```
OkHttpDebugLogging.enableHttp2()
OkHttpDebugLogging.enableTaskRunner()
```

### Activating on Android

```
$ adb shell setprop log.tag.okhttp.Http2 DEBUG
$ adb shell setprop log.tag.okhttp.TaskRunner DEBUG
$ adb logcat '*:E' 'okhttp.Http2:D' 'okhttp.TaskRunner:D'
```

### HTTP/2 Frame Logging

This logs inbound (`<<`) and outbound (`>>`) frames for HTTP/2 connections.

```

    peer.acceptFrame() // SYN_STREAM.
    peer.play()
    val taskRunner = taskFaker.taskRunner
    val socket = peer.openSocket()
    val connection =
      Http2Connection.Builder(true, taskRunner)
        .socket(socket)
        .pushObserver(IGNORE)
        .build()
    connection.start(sendConnectionPreface = false)
    val queues = taskRunner.activeQueues()
    assertThat(queues).hasSize(1)
  }

  internal val valueCount: Int,
  /** Returns the maximum number of bytes that this cache should use to store its data. */
  maxSize: Long,
  /** Used for asynchronous journal rebuilds. */
  taskRunner: TaskRunner,
) : Closeable, Flushable {
  internal val fileSystem: FileSystem =
    object : ForwardingFileSystem(fileSystem) {
      override fun sink(
        file: Path,
        mustCreate: Boolean,
      ): Sink {