*/
  var upstream: Source?,
  /** The number of bytes consumed from [upstream]. Guarded by this. */
  var upstreamPos: Long,
  /** User-supplied additional data persisted with the source data. */
  private val metadata: ByteString,
  /** The maximum size of [buffer]. */
  val bufferMaxSize: Long,
) : Lockable {
  /** The thread that currently has access to upstream. Possibly null. Guarded by this. */

        return wasInUse;
    }

    @Override
    protected long makeKey(final Request request) throws IOException {
        long m = this.mid.incrementAndGet() - 1;
        if (!this.smb2) {
            m = m % 32000;
        }
        ((CommonServerMessageBlock) request).setMid(m);
        return m;
    }

    @Override
    protected Long peekKey() throws IOException {
        do {

@NullUnmarked
public class StopwatchBenchmark {
  @Benchmark
  long stopwatch(int reps) {
    long total = 0;
    for (int i = 0; i < reps; i++) {
      Stopwatch s = Stopwatch.createStarted();
      // here is where you would do something
      total += s.elapsed(NANOSECONDS);
    }
    return total;
  }

  @Benchmark
  long manual(int reps) {
    long total = 0;
    for (int i = 0; i < reps; i++) {

    }

    /**
     * @return the lastWriteTime
     */
    @Override
    public final long getLastWriteTime() {
        return this.lastWriteTime;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.SmbBasicFileInfo#getCreateTime()
     */
    @Override
    public long getCreateTime() {
        return 0;
    }

    /**
     * {@inheritDoc}
     *

      T target, Class<T> interfaceType, long timeoutDuration, TimeUnit timeoutUnit) {
    checkNotNull(target);
    checkNotNull(interfaceType);
    checkNotNull(timeoutUnit);
    return target; // ha ha
  }

  @CanIgnoreReturnValue // TODO(kak): consider removing this
  @Override
  @ParametricNullness
  public <T extends @Nullable Object> T callWithTimeout(

    /**
     * Maximum number of URLs to access during crawling.
     */
    protected long maxAccessCount = Long.MAX_VALUE;

    /**
     * Interval time in milliseconds between crawling executions.
     */
    protected long crawlingExecutionInterval = Constants.DEFAULT_CRAWLING_EXECUTION_INTERVAL;

    /**
     * Thread priority for index updater operations.
     */

        dst[++dstIndex] = (byte) (val >> 8);
    }

    static long readTime(final byte[] src, final int srcIndex) {
        final int low = readInt4(src, srcIndex);
        final int hi = readInt4(src, srcIndex + 4);
        final long t = (long) hi << 32L | low & 0xFFFFFFFFL;
        return t / 10000L - MILLISECONDS_BETWEEN_1970_AND_1601;
    }

    static void writeTime(long t, final byte[] dst, final int dstIndex) {
        if (t != 0L) {

        long flags = 0x1234567890ABCDEFL;
        request.setSmbCreateFlags(flags);

        byte[] buffer = new byte[1024];
        request.writeBytesWireFormat(buffer, 0);

        // Verify flags are written at correct offset (8-15)
        long readFlags = 0;
        for (int i = 0; i < 8; i++) {
            readFlags |= ((long) (buffer[8 + i] & 0xFF)) << (i * 8);
        }

        murmur3_128(0).hashString("The quick brown fox jumps over the lazy dog", UTF_8);
    assertEquals("6c1b07bc7bbc4be347939ac4a93c437a", foxHash.toString());
  }

  private static void assertHash(int seed, long expected1, long expected2, String stringInput) {
    HashCode expected = toHashCode(expected1, expected2);
    byte[] input = HashTestUtils.ascii(stringInput);
    assertEquals(expected, murmur3_128(seed).hashBytes(input));

     *
     * @return current position
     */
    long getFilePointer();

    /**
     * Seek to new position
     *
     * @param pos the new position to seek to
     */
    void seek(long pos);

    /**
     * Get the current file length
     *
     * @return file length
     * @throws SmbException if an I/O error occurs
     */
    long length() throws SmbException;

    /**