f:      formatGzip,
	},
	{
		// Zstd default header.
		header: []byte{0x28, 0xb5, 0x2f, 0xfd},
		f:      formatZstd,
	},
	{
		// Zstd skippable frame header.
		header: []byte{0x2a, 0x4d, 0x18},
		f:      formatZstd,
	},
	{
		// LZ4
		header: []byte{0x4, 0x22, 0x4d, 0x18},
		f:      formatLZ4,
	},
	{
		// Snappy/S2 stream
		header: []byte{0xff, 0x06, 0x00, 0x00},
		f:      formatS2,
	},
	{

			}

			_, err = obj.PutObject(ctx, bucket, object,
				mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), opts)
			if err != nil {
				t.Fatal(err)
			}

			actualH := sha256.New()
			_, err = io.Copy(actualH, bytes.NewReader(data))
			if err != nil {
				return
			}
			actualSha256 := actualH.Sum(nil)

		return err
	}
	config.Tiers[tierName] = cfg
	config.drivercache[tierName] = d
	return nil
}

// Bytes returns msgpack encoded config with format and version headers.
func (config *TierConfigMgr) Bytes() ([]byte, error) {
	config.RLock()
	defer config.RUnlock()
	data := make([]byte, 4, config.Msgsize()+4)

	// Initialize the header.
	binary.LittleEndian.PutUint16(data[0:2], tierConfigFormat)

on writing I/O. We can't return from a write until we've pushed its bytes onto the socket. Otherwise, if the write fails we are unable to deliver its IOException to the application. We would have told the application layer that the write succeeded, but it didn't!

The application-layer can also do blocking reads. If the application asks to read and there's nothing available, we need to hold that thread until either the bytes arrive, the stream is closed, or a timeout elapses. If we get bytes...

	healEntrySuccess := func(sz uint64) healEntryResult {
		return healEntryResult{
			bytes:   sz,
			success: true,
		}
	}

	healEntryFailure := func(sz uint64) healEntryResult {
		return healEntryResult{
			bytes: sz,
		}
	}

	healEntrySkipped := func(sz uint64) healEntryResult {
		return healEntryResult{
			bytes:   sz,
			skipped: true,
		}
	}

	EndTime   time.Time `json:"endTime"`
	// Status of resync operation
	ResyncStatus string `json:"resyncStatus,omitempty"`
	// Completed size in bytes
	ReplicatedSize int64 `json:"completedReplicationSize"`
	// Failed size in bytes
	FailedSize int64 `json:"failedReplicationSize"`
	// Total number of failed operations
	FailedCount int64 `json:"failedReplicationCount"`
	// Total number of failed operations

    }

    @Override
    public int decode(byte[] buffer, int bufferIndex, int len) throws SMBProtocolDecodingException {
        int start = bufferIndex;

        if (len < 32) {
            throw new SMBProtocolDecodingException("Lease V1 context data too short: " + len);
        }

        // Read lease V1 data (32 bytes)
        byte[] keyBytes = new byte[16];
        System.arraycopy(buffer, bufferIndex, keyBytes, 0, 16);

  }

  /**
   * Reads all bytes from a file into a byte array.
   *
   * <p><b>{@link java.nio.file.Path} equivalent:</b> {@link java.nio.file.Files#readAllBytes}.
   *
   * @param file the file to read from
   * @return a byte array containing all the bytes from file
   * @throws IllegalArgumentException if the file is bigger than the largest possible byte array
   *     (2^31 - 1)

     * @param maxRecvCnt the maximum number of bytes to receive
     * @return len the number of bytes received
     * @throws IOException if an I/O error occurs
     */
    int sendrecv(byte[] buf, int off, int length, byte[] inB, int maxRecvCnt) throws IOException;

        // For Unicode: 1 byte (initial null in writeBytesWireFormat)
        // + potential 1 byte alignment (in writeString) + fileName.length() * 2 + 2 bytes (terminating nulls)
        // Since headerStart is 0 and dstIndex starts at 1 (after initial null), (1-0)%2=1, so alignment byte added
        // Total: 1 + 1 + 12*2 + 2 = 28 bytes
        byte[] dst = new byte[30]; // Use extra buffer space to avoid index errors