return false, fmt.Errorf("RUnlock attempted on a write locked entity: %s", args.Resources[0])
	}
	if locksHeld > ReadLock {
		l.lockMap[args.Resources[0]] = locksHeld - ReadLock // Remove one of the read locks held
	} else {
		delete(l.lockMap, args.Resources[0]) // Remove the (last) read lock
	}
	return reply, nil
}

}

// RLock holds a read lock on lm.
//
// If one or more read lock are already in use, it will grant another lock.
// Otherwise the calling go routine blocks until the mutex is available.
func (lm *LRWMutex) RLock() {
	const isWriteLock = false
	lm.lockLoop(context.Background(), lm.id, lm.source, 1<<63-1, isWriteLock)
}

// GetRLock tries to get a read lock on lm before the timeout occurs.

}

// Unlock - block until write lock is released.
func (di *distLockInstance) Unlock(lc LockContext) {
	if lc.cancel != nil {
		lc.cancel()
	}
	di.rwMutex.Unlock(lc.ctx)
}

// RLock - block until read lock is taken or timeout has occurred.
func (di *distLockInstance) GetRLock(ctx context.Context, timeout *dynamicTimeout) (LockContext, error) {
	lockSource := getSource(2)
	start := UTCNow()

	defer xioutil.ODirectPoolSmall.Put(bufp)

	for left > 0 {
		// Read expected hash...
		h.Reset()
		n, err := io.ReadFull(r, hashBuf)
		if err != nil {
			// Read's failed for object with right size, file is corrupt.
			return err
		}
		// Subtract hash length..
		left -= int64(n)
		if left < shardSize {
			shardSize = left
		}

		read, err := io.CopyBuffer(h, io.LimitReader(r, shardSize), *bufp)

				}
			}
			refDec := json.NewReader(io.NopCloser(bytes.NewBuffer(ref)), &json.ReaderArgs{ContentType: "json"})

			for {
				rec, err := dec.Read(nil)
				if err == io.EOF {
					break
				}
				if err != nil {
					t.Error(err)
				}
				want, err := refDec.Read(nil)
				if err != nil {
					t.Error(err)
				}
				var gotB, wantB bytes.Buffer
				opts := sql.WriteCSVOpts{
					FieldDelimiter: ',',

				// Read metadata CRC (added in v2, ignore if not found)
				b = nbuf
			}

			_, e = msgp.CopyToJSON(buf, bytes.NewReader(v))
			if e != nil {
				return nil, e
			}
			data = b
		case 3:
			v, b, e := msgp.ReadBytesZC(b)
			if e != nil {
				return nil, e
			}
			if _, nbuf, e := msgp.ReadUint32Bytes(b); e == nil {
				// Read metadata CRC (added in v2, ignore if not found)

		},
		config.HelpKV{
			Key:         LookupBindDN,
			Description: `DN for LDAP read-only service account used to perform DN and group lookups` + defaultHelpPostfix(LookupBindDN),
			Optional:    true,
			Type:        "string",
			Sensitive:   true,
		},
		config.HelpKV{
			Key:         LookupBindPassword,
			Description: `Password for LDAP read-only service account used to perform DN and group lookups` + defaultHelpPostfix(LookupBindPassword),

	"context"
	"errors"
)

// A Stream is a two-way stream.
// All responses *must* be read by the caller.
// If the call is canceled through the context,
// the appropriate error will be returned.
type Stream struct {
	// responses from the remote server.
	// Channel will be closed after error or when remote closes.
	// All responses *must* be read by the caller until either an error is returned or the channel is closed.

func (r *PipeReader) CloseWithError(err error) error {
	err = r.PipeReader.CloseWithError(err)
	r.wait()
	return err
}

// WaitPipe implements wait-group backend io.Pipe to provide
// synchronization between read() end with write() end.
func WaitPipe() (*PipeReader, *PipeWriter) {
	r, w := io.Pipe()
	var wg sync.WaitGroup
	wg.Add(1)
	return &PipeReader{
			PipeReader: r,
			wait:       wg.Wait,
		}, &PipeWriter{

	}

	var access uint32
	switch flag {
	case syscall.O_RDONLY:
		access = syscall.GENERIC_READ
	case syscall.O_WRONLY:
		access = syscall.GENERIC_WRITE
	case syscall.O_RDWR:
		fallthrough
	case syscall.O_RDWR | syscall.O_CREAT:
		fallthrough
	case syscall.O_WRONLY | syscall.O_CREAT:
		access = syscall.GENERIC_READ | syscall.GENERIC_WRITE
	case syscall.O_WRONLY | syscall.O_CREAT | syscall.O_APPEND: