r.Seek(int64(len(alphabets)), 0)
	checkEq(readAll(r), readAll(NewDummyDataGen(100-int64(len(alphabets)), 0)))
}

// Compares all the bytes returned by the given readers. Any Read
// errors cause a `false` result. A string describing the error is
// also returned.
func cmpReaders(r1, r2 io.Reader) (bool, string) {
	bufLen := 32 * 1024
	b1, b2 := make([]byte, bufLen), make([]byte, bufLen)
	for i := 0; true; i++ {

	if !m.checkSeq(seq) {
		msg := fmt.Sprintf("receive sequence number mismatch. want %d, got %d", m.RecvSeq, seq)
		return pongMsg{Err: &msg}
	}
	select {
	case <-m.ctx.Done():
		err := context.Cause(m.ctx).Error()
		return pongMsg{Err: &err}
	default:
		atomic.StoreInt64(&m.LastPing, time.Now().Unix())
		return pongMsg{}
	}
}

func (m *muxServer) disconnect(msg string) {
	if debugPrint {

const DirectioAlignSize = 4096

// CopyAligned - copies from reader to writer using the aligned input
// buffer, it is expected that input buffer is page aligned to
// 4K page boundaries. Without passing aligned buffer may cause
// this function to return error.
//
// This code is similar in spirit to io.Copy but it is only to be
// used with DIRECT I/O based file descriptor and it is expected that

			return ep, fmt.Errorf("empty or root path is not supported in URL endpoint")
		}

		// On windows having a preceding SlashSeparator will cause problems, if the
		// command line already has C:/<export-folder/ in it. Final resulting
		// path on windows might become C:/C:/ this will cause problems
		// of starting minio server properly in distributed mode on windows.
		// As a special case make sure to trim the separator.

		return
	}

	// Analyze where clause
	if selectAST.Where != nil {
		whereQProp := selectAST.Where.analyze(&selectAST)
		if whereQProp.err != nil {
			err = errQueryAnalysisFailure(fmt.Errorf("Where clause error: %w", whereQProp.err))
			return
		}

		if whereQProp.isAggregation {
			err = errQueryAnalysisFailure(errors.New("WHERE clause cannot have an aggregation"))
			return
		}
	}

}

// Unwrap the internal error.
func (e Error) Unwrap() error { return e.err }

// Error 'error' compatible method.
func (e Error) Error() string {
	if e.err == nil {
		return "versioning: cause <nil>"
	}
	return e.err.Error()

================================================================

github.com/lufia/plan9stats
https://github.com/lufia/plan9stats
----------------------------------------------------------------
BSD 3-Clause License

Copyright (c) 2019, KADOTA, Kyohei
All rights reserved.

Redistribution and use in source and binary forms, with or without

	buf := GetByteBufferCap(len(p))
	buf = buf[:len(p)]
	copy(buf, p)
	select {
	case w.ch <- buf:
		return len(p), nil
	case <-w.ctx.Done():
		return 0, context.Cause(w.ctx)
	}
}

// WriterToChannel will return an io.Writer that writes to the given channel.
// The context both allows returning errors on writes and to ensure that

	data, err := io.ReadAll(body)
	if err != nil {
		return SRError{
			Cause: err,
			Code:  ErrSiteReplicationInvalidRequest,
		}
	}
	if encryptionKey != "" {
		data, err = madmin.DecryptData(encryptionKey, bytes.NewReader(data))
		if err != nil {
			return SRError{
				Cause: err,
				Code:  ErrSiteReplicationInvalidRequest,
			}
		}
	}
	return json.Unmarshal(data, v)

//
// 5. __missingParts__       - has the latest copy of xl.meta but has some parts
// missing.  This is identified separately since this may need manual
// inspection to understand the root cause. E.g, this could be due to
// backend filesystem corruption.

// listOnlineDisks - returns
// - a slice of disks where disk having 'older' xl.meta (or nothing)
// are set to nil.