// This is not timing the actual read operation, but the time it takes to prepare the reader.
	stopFn := globalSftpMetrics.log(r, f.AccessKey())
	defer stopFn(0, err)

	flags := r.Pflags()
	if !flags.Read {
		// sanity check
		return nil, os.ErrInvalid
	}

	bucket, object := path2BucketObject(r.Filepath)
	if bucket == "" {
		return nil, errors.New("bucket name cannot be empty")
	}

	return
}

// DecodeMsg implements msgp.Decodable
func (z *xlFlags) DecodeMsg(dc *msgp.Reader) (err error) {
	{
		var zb0001 uint8
		zb0001, err = dc.ReadUint8()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		(*z) = xlFlags(zb0001)
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z xlFlags) EncodeMsg(en *msgp.Writer) (err error) {
	err = en.WriteUint8(uint8(z))

	WrittenByVersion uint64                `msg:"v"` // Tracks written by MinIO version
}

// xlFlags contains flags on the object.
// This can be extended up to 64 bits without breaking compatibility.
type xlFlags uint8

const (
	xlFlagFreeVersion xlFlags = 1 << iota
	xlFlagUsesDataDir
	xlFlagInlineData
)

func (x xlFlags) String() string {
	var s strings.Builder
	if x&xlFlagFreeVersion != 0 {

constrain future implementations, so the rule is that Go code can
hand a Go pointer to C code but must separately arrange for
Go to hang on to a reference to the pointer until C is done with it.
*/
package gmp

/*
#cgo LDFLAGS: -lgmp
#include <gmp.h>
#include <stdlib.h>

// gmp 5.0.0+ changed the type of the 3rd argument to mp_bitcnt_t,
// so, to support older versions, we wrap these two functions.

        // Verify resumeKey (4 bytes)
        assertEquals(TEST_RESUME_KEY, SMBUtil.readInt4(buffer, 6));

        // Verify tflags (2 bytes) - should be 0x00
        assertEquals(0x00, SMBUtil.readInt2(buffer, 10));

        // Verify filename
        String actualFilename = readString(buffer, 12, written - 12);

      TYPE_DATA -> readData(handler, length, flags, streamId)
      TYPE_HEADERS -> readHeaders(handler, length, flags, streamId)
      TYPE_PRIORITY -> readPriority(handler, length, flags, streamId)
      TYPE_RST_STREAM -> readRstStream(handler, length, flags, streamId)
      TYPE_SETTINGS -> readSettings(handler, length, flags, streamId)
      TYPE_PUSH_PROMISE -> readPushPromise(handler, length, flags, streamId)

     *
     * @param config the configuration
     * @param compressionAlgorithms the supported compression algorithms
     * @param flags compression flags (reserved, should be 0)
     */
    public CompressionNegotiateContext(final Configuration config, final int[] compressionAlgorithms, final int flags) {

    void testConstructor_CreateAndOpen() {
        int flags = SmbFile.O_CREAT;
        smbComOpenAndX = new SmbComOpenAndX(fileName, access, flags, andx);
        assertEquals(0x11, smbComOpenAndX.openFunction); // OPEN_FN_CREATE | OPEN_FN_OPEN
    }

    /**
     * Test constructor with no special flags.
     */
    @Test
    void testConstructor_OpenOnly() {
        int flags = 0;

    byteCount: Int,
  ) {
    withLock {
      if (closed) throw IOException("closed")
      var flags = FLAG_NONE
      if (outFinished) flags = flags or FLAG_END_STREAM
      dataFrame(streamId, flags, source, byteCount)
    }
  }

  @Throws(IOException::class)
  fun dataFrame(
    streamId: Int,
    flags: Int,
    buffer: Buffer?,
    byteCount: Int,
  ) {
    frameHeader(

            // Check that no two flags overlap (except combined flags)
            for (int i = 0; i < flags.length; i++) {
                for (int j = i + 1; j < flags.length; j++) {
                    assertEquals(0, flags[i] & flags[j], String.format("Flags at index %d and %d should not overlap", i, j));
                }
            }
        }
    }