private lateinit var server: MockWebServer
  private lateinit var client: OkHttpClient

  @BeforeEach
  fun setUp() {
    // Sockets on some platforms can have large buffers that mean writes do not block when
    // required. These socket factories explicitly set the buffer sizes on sockets created.
    server = MockWebServer()
    server.serverSocketFactory =

        return buffer[bufferIndex] & 0xFF;
    }

    int type, length;

    /**
     * Writes the packet to the specified byte array in wire format.
     *
     * @param dst the destination byte array to write to
     * @param dstIndex the starting index in the destination array
     * @return the number of bytes written
     */
    public int writeWireFormat(final byte[] dst, final int dstIndex) {

`UploadFile` has the following `async` methods. They all call the corresponding file methods underneath (using the internal `SpooledTemporaryFile`).

* `write(data)`: Writes `data` (`str` or `bytes`) to the file.
* `read(size)`: Reads `size` (`int`) bytes/characters of the file.
* `seek(offset)`: Goes to the byte position `offset` (`int`) in the file.

   * java.nio.file.Files#write(java.nio.file.Path, byte[], java.nio.file.OpenOption...)}.
   *
   * @param from the bytes to write
   * @param to the destination file
   * @throws IOException if an I/O error occurs
   */
  public static void write(byte[] from, File to) throws IOException {
    asByteSink(to).write(from);
  }

  /**

	processIOWCharBytesMD             = NewCounterMD(processIOWCharBytes, "Total bytes written by the process to the underlying storage system including page cache, /proc/[pid]/io wchar")
	processIOWriteBytesMD             = NewCounterMD(processIOWriteBytes, "Total bytes written by the process to the underlying storage system, /proc/[pid]/io write_bytes")

        decoded.decode(buf);
        assertEquals(expected, decoded.value, "decoded value should match original after masking");
    }

    /**
     * Verify that encode writes the correct little-endian sequence
     * to the buffer and that alignment is respected.
     */
    @Test
    void encodeWritesCorrectBytesAndAlignment() throws NdrException {

	return &streamingBitrotWriter{iow: ioutil.NopCloser(w), h: algo.New(), shardSize: shardSize, canClose: nil, closeWithErr: func(err error) {}}
}

// Returns streaming bitrot writer implementation.
func newStreamingBitrotWriter(disk StorageAPI, origvolume, volume, filePath string, length int64, algo BitrotAlgorithm, shardSize int64) io.Writer {
	h := algo.New()

    int FILE_READ_ATTRIBUTES = 0x00000080; // 8
    /** File write attributes access right */
    int FILE_WRITE_ATTRIBUTES = 0x00000100; // 9
    /** Delete access right */
    int DELETE = 0x00010000; // 16
    /** Read control access right */
    int READ_CONTROL = 0x00020000; // 17
    /** Write DAC access right */
    int WRITE_DAC = 0x00040000; // 18
    /** Write owner access right */
    int WRITE_OWNER = 0x00080000; // 19

package cmd

import (
	"context"
	"encoding/xml"
	"net/http"

	xhttp "github.com/minio/minio/internal/http"
	"github.com/minio/minio/internal/logger"
)

// writeSTSErrorResponse writes error headers
func writeSTSErrorResponse(ctx context.Context, w http.ResponseWriter, errCode STSErrorCode, err error) {
	stsErr := stsErrCodes.ToSTSErr(errCode)

	// Generate error response.

            return ((Smb2ReadRequest) message).getReadLength() > 1048576; // 1MB
        }
        if (message instanceof Smb2WriteRequest) {
            // Data length not accessible, assume large writes for now
            return true;
        }
        return false;
    }

    private boolean isMetadataOperation(CommonServerMessageBlock message) {