}

    /**
     * Returns a {@link ByteBuffer} that maps the file channel to memory.
     *
     * @param channel
     *            The file channel. Must not be {@literal null}.
     * @param mode
     *            The mode. Must not be {@literal null}.
     * @return A {@link ByteBuffer} that maps the file channel to memory.
     */
    public static ByteBuffer map(final FileChannel channel, final MapMode mode) {

  @Override
  public HashCode hashBytes(ByteBuffer input) {
    return newHasher(input.remaining()).putBytes(input).hash();
  }

  /** In-memory ByteBuffer-based implementation of {@link Hasher}. */
  private final class ByteBufferHasher extends AbstractHasher {
    ByteBuffer buffer;

    ByteBufferHasher(int expectedInputSize) {
      this.buffer = ByteBuffer.allocate(expectedInputSize).order(ByteOrder.LITTLE_ENDIAN);
    }

 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal.smb2.rdma;

import java.nio.ByteBuffer;
import java.util.EnumSet;

/**
 * Abstract base class for RDMA memory regions.
 *
 * Represents a registered memory region that can be used for
 * RDMA operations. The memory region contains a buffer, access

    ByteBuffer scratch = scratch();
    scratch.putInt(i);
    return update(scratch, Ints.BYTES);
  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putLong(long l) {
    ByteBuffer scratch = scratch();
    scratch.putLong(l);
    return update(scratch, Longs.BYTES);
  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putChar(char c) {
    ByteBuffer scratch = scratch();

              request.read(ByteBuffer.allocateDirect(4096 * 8))
            }

            override fun onReadCompleted(
              request: UrlRequest,
              info: UrlResponseInfo,
              byteBuffer: ByteBuffer,
            ) {
              println("onReadCompleted ${info.headers.asMap}")
              byteBuffer.flip()
              buffer.write(byteBuffer)

   * The passed {@code ByteBuffer} is guaranteed to be non-empty.
   *
   * <p>This implementation simply pads with zeros and delegates to {@link #process(ByteBuffer)}.
   */
  protected void processRemaining(ByteBuffer bb) {
    Java8Compatibility.position(bb, bb.limit()); // move at the end
    Java8Compatibility.limit(bb, chunkSize + 7); // get ready to pad with longs
    while (bb.position() < chunkSize) {
      bb.putLong(0);
    }

   * overflow must be due to a small output buffer.
   */
  private void startDraining(boolean overflow) {
    Java8Compatibility.flip(byteBuffer);
    if (overflow && byteBuffer.remaining() == 0) {
      byteBuffer = ByteBuffer.allocate(byteBuffer.capacity() * 2);
    } else {
      draining = true;
    }
  }

  /**

            socket.setSoTimeout(timeout);

            // First, read the header to determine message size
            ByteBuffer headerBuffer = ByteBuffer.allocate(4);
            while (headerBuffer.hasRemaining()) {
                int read = socketChannel.read(headerBuffer);
                if (read < 0) {
                    throw new IOException("Connection closed by peer");
                }
            }

     */
    private void initializeBufferPool() {
        // Allocate send buffers
        for (int i = 0; i < initialSendBuffers; i++) {
            try {
                ByteBuffer buffer = ByteBuffer.allocateDirect(sendBufferSize);
                RdmaMemoryRegion region = provider.registerMemory(buffer, EnumSet.of(RdmaAccess.LOCAL_READ, RdmaAccess.REMOTE_READ));
                availableSendRegions.offer(region);

        }

        // MS-SMB2 specifies little-endian byte ordering for GUID components
        // Convert from little-endian wire format to Java UUID
        ByteBuffer bb = ByteBuffer.wrap(bytes).order(java.nio.ByteOrder.LITTLE_ENDIAN);

        // Read GUID components in little-endian order
        int data1 = bb.getInt(); // first 4 bytes (little-endian)