private val noContextTakeover: Boolean,
) : Closeable {
  private var closed = false

  // Stateful data about the current frame.
  private var opcode = 0
  private var frameLength = 0L
  private var isFinalFrame = false
  private var isControlFrame = false
  private var readingCompressedMessage = false

  private val controlFrameBuffer = Buffer()
  private val messageFrameBuffer = Buffer()

    return Longs.constrainToRange(timeoutNanos, 0L, (Long.MAX_VALUE / 4) * 3);
  }

  /**
   * Returns System.nanoTime() unless the timeout has already elapsed. Returns 0L if and only if the
   * timeout has already elapsed.
   */
  private static long initNanoTime(long timeoutNanos) {
    if (timeoutNanos <= 0L) {
      return 0L;
    } else {
      long startTime = System.nanoTime();

   *
   * @throws RejectedExecutionException if the queue is shut down and the task is not cancelable.
   */
  fun schedule(
    task: Task,
    delayNanos: Long = 0L,
  ) {
    taskRunner.withLock {
      if (shutdown) {
        if (task.cancelable) {
          taskRunner.logger.taskLog(task, this) { "schedule canceled (queue is shutdown)" }
          return
        }

  private val delegate: Sink,
  private val triggerByteCount: Long,
  private val trigger: () -> Unit,
) : Sink by delegate {
  private var bytesWritten = 0L

  override fun write(
    source: Buffer,
    byteCount: Long,
  ) {
    if (byteCount == 0L) return // Avoid double-triggering.

    if (bytesWritten == triggerByteCount) {
      source.skip(byteCount)
      return
    }

   * @return the sum
   */
  public long sumThenReset() {
    long sum = base;
    Cell[] as = cells;
    base = 0L;
    if (as != null) {
      int n = as.length;
      for (int i = 0; i < n; ++i) {
        Cell a = as[i];
        if (a != null) {
          sum += a.value;
          a.value = 0L;
        }
      }
    }
    return sum;
  }

  /**

    delegate: Source,
    private val contentLength: Long,
  ) : ForwardingSource(delegate) {
    private var bytesReceived = 0L
    private var invokeStartEvent = true
    private var completed = false
    private var closed = false

    init {
      if (contentLength == 0L) {
        complete(null)
      }
    }

    @Throws(IOException::class)
    override fun read(
      sink: Buffer,

      for (RoundingMode mode : ALL_ROUNDING_MODES) {
        assertEquals(0L, LongMath.divide(0L, q, mode));
      }
    }
  }

  @GwtIncompatible // TODO
  public void testDivByZeroAlwaysFails() {
    for (long p : ALL_LONG_CANDIDATES) {
      for (RoundingMode mode : ALL_ROUNDING_MODES) {
        assertThrows(ArithmeticException.class, () -> LongMath.divide(p, 0L, mode));
      }
    }
  }

  @GwtIncompatible // TODO

  var socketPolicy: SocketPolicy = SocketPolicy.KEEP_OPEN

  @set:JvmName("http2ErrorCode")
  var http2ErrorCode: Int = -1

  private var bodyDelayAmount = 0L
  private var bodyDelayUnit = TimeUnit.MILLISECONDS

  private var headersDelayAmount = 0L
  private var headersDelayUnit = TimeUnit.MILLISECONDS

  private var promises = mutableListOf<PushPromise>()
  var settings: Settings = Settings()
    private set

    val buffer = Buffer()
    var receivedByteCount = 0L

    @Throws(IOException::class)
    override fun write(
      source: Buffer,
      byteCount: Long,
    ) {
      val toRead = minOf(remainingByteCount, byteCount)
      if (toRead > 0L) {
        source.read(buffer, toRead)
      }
      val toSkip = byteCount - toRead
      if (toSkip > 0L) {
        source.skip(toSkip)
      }

      eachQueue@ for (queue in readyQueues) {
        val candidate = queue.futureTasks[0]
        val candidateDelay = maxOf(0L, candidate.nextExecuteNanoTime - now)

        when {
          // Compute the delay of the soonest-executable task.
          candidateDelay > 0L -> {
            minDelayNanos = minOf(candidateDelay, minDelayNanos)
            continue@eachQueue
          }