// Make subtype to avoid recursive UnmarshalXML().
	type subReaderArgs ReaderArgs
	parsedArgs := subReaderArgs{}
	if err := d.DecodeElement(&parsedArgs, &start); err != nil {
		return err
	}

	args.unmarshaled = true
	return nil

	flags := os.O_WRONLY | os.O_APPEND | os.O_CREATE
	if osync {
		flags |= os.O_SYNC
	}
	appendFile, err := os.OpenFile(dst, flags, 0o666)
	if err != nil {
		return err
	}
	defer appendFile.Close()

	srcFile, err := os.Open(src)
	if err != nil {
		return err
	}
	defer srcFile.Close()
	_, err = io.Copy(appendFile, srcFile)
	return err

	name, err := strconv.Unquote(in.Stack.Text())
	if err != nil {
		in.Error("unquoting include file name: ", err)
	}
	in.expectNewline("#include")
	// Push tokenizer for file onto stack.
	fd, err := os.Open(name)
	if err != nil {
		for _, dir := range in.includes {
			fd, err = os.Open(filepath.Join(dir, name))
			if err == nil {
				break
			}
		}
		if err != nil {
			in.Error("#include:", err)
		}
	}

	for {
		// Read tokens from the XML document in a stream.
		t, err := d.Token()
		if err != nil {
			if err == io.EOF {
				break
			}
			return err
		}

		if se, ok := t.(xml.StartElement); ok {
			var s string
			if err = d.DecodeElement(&s, &se); err != nil {
				return err
			}
			switch se.Name.Local {
			case "Key":
				if keyAlreadyParsed {
					return errDuplicatedXMLTag

		t.Run(tt.name, func(t *testing.T) {
			gotArn, err := Parse(tt.args.arnStr)
			if err == nil && tt.wantErr {
				t.Errorf("Parse() error = %v, wantErr %v", err, tt.wantErr)
			}
			if err != nil && !tt.wantErr {
				t.Errorf("Parse() error = %v, wantErr %v", err, tt.wantErr)
			}
			if err == nil {
				if !reflect.DeepEqual(gotArn, tt.wantArn) {
					t.Errorf("Parse() gotArn = %v, want %v", gotArn, tt.wantArn)

	// Consequently, if err != nil, reply is always false
	return l.makeResp(resp, err)
}

// RLockHandler - Acquires an RLock.
func (l *lockRESTServer) RLockHandler(args *dsync.LockArgs) (*dsync.LockResp, *grid.RemoteErr) {
	resp := lockRPCRLock.NewResponse()
	success, err := l.ll.RLock(context.Background(), *args)
	if err == nil && !success {
		err = errLockConflict
	}

import (
	"gorm.io/gorm"
)

func BeginTransaction(db *gorm.DB) {
	if !db.Config.SkipDefaultTransaction && db.Error == nil {
		if tx := db.Begin(); tx.Error == nil {
			db.Statement.ConnPool = tx.Statement.ConnPool
			db.InstanceSet("gorm:started_transaction", true)
		} else if tx.Error == gorm.ErrInvalidTransaction {
			tx.Error = nil
		} else {
			db.Error = tx.Error
		}
	}
}

func CommitOrRollbackTransaction(db *gorm.DB) {

	f, err := os.ReadFile("testdata/testdata.zip")
	if err != nil {
		t.Fatal(err)
	}
	z, err := zip.NewReader(bytes.NewReader(f), int64(len(f)))
	if err != nil {
		t.Fatal(err)
	}
	for _, f := range z.File {
		if f.Name == file {
			rc, err := f.Open()
			if err != nil {
				t.Fatal(err)
			}
			defer rc.Close()
			b, err := io.ReadAll(rc)
			if err != nil {
				t.Fatal(err)
			}
			return b
		}

}

// 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 "lifecycle: cause <nil>"
	}
	return e.err.Error()

}

// 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()