Trace("Open", path)
	return openFile(path, os.O_RDONLY, 0)
}

func openFile(path string, flag int, perm os.FileMode) (*os.File, error) {
	cpath := canonicalize(path)
	if node, ok := overlay[cpath]; ok {
		// Opening a file in the overlay.
		if node.isDir() {
			return nil, &fs.PathError{Op: "OpenFile", Path: path, Err: errors.New("fsys.OpenFile doesn't support opening directories yet")}
		}

type newFileKind int

const (
	// kindNewFile means that the descriptor was passed to us via NewFile.
	kindNewFile newFileKind = iota
	// kindOpenFile means that the descriptor was opened using
	// Open, Create, or OpenFile.
	kindOpenFile
	// kindPipe means that the descriptor was opened using Pipe.
	kindPipe
	// kindSock means that the descriptor is a network file descriptor

		for i, fi := range fis {
			des[i] = fs.FileInfoToDirEntry(fi)
		}
		return des, nil
	}
	return os.ReadDir(path)
}

// openFile calls ctxt.OpenFile (if not nil) or else os.Open.
func (ctxt *Context) openFile(path string) (io.ReadCloser, error) {
	if fn := ctxt.OpenFile; fn != nil {
		return fn(path)
	}

	f, err := os.Open(path)
	if err != nil {
		return nil, err // nil interface
	}

	if e != nil {
		return nil, &PathError{Op: "fork/exec", Path: name, Err: e}
	}

	return newPIDProcess(pid), nil
}

func (p *Process) writeProcFile(file string, data string) error {
	f, e := OpenFile("/proc/"+itoa.Itoa(p.Pid)+"/"+file, O_WRONLY, 0)
	if e != nil {
		return e
	}
	defer f.Close()
	_, e = f.Write([]byte(data))
	return e
}

func (p *Process) signal(sig Signal) error {

		// up). Ensure that cleanup occurs.
		_ = os.Remove(fname)
		return false
	}

	// Lock the upload, to prevent duplicate uploads.
	{
		lockname := newname + ".lock"
		lockfile, err := os.OpenFile(lockname, os.O_CREATE|os.O_EXCL, 0666)
		if err != nil {
			u.logger.Printf("Failed to acquire lock %s: %v", lockname, err)
			return false
		}
		_ = lockfile.Close()
		defer os.Remove(lockname)
	}

	} else if fd.IsDir() {
		// local/debug exists and is a directory. Set stderr to a log file path
		// in local/debug.
		childLogPath := filepath.Join(telemetry.Default.DebugDir(), "sidecar.log")
		childLog, err := os.OpenFile(childLogPath, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0600)
		if err != nil {
			log.Fatalf("opening sidecar log file for child: %v", err)
		}
		defer childLog.Close()
		cmd.Stderr = childLog
	}

					// and check if that disk
					// appears in outDatedDisks.
					tamperedIndex = index
					filePath := pathJoin(erasureDisks[index].String(), bucket, object, fi.DataDir, "part.1")
					f, err := os.OpenFile(filePath, os.O_WRONLY|os.O_SYNC, 0)
					if err != nil {
						t.Fatalf("Failed to open %s: %s\n", filePath, err)
					}
					f.WriteString("oops") // Will cause bitrot error
					f.Close()
					break
				}

// includes a symlink to one), it should return an error. Other than that this
// should act like openFileNolog.
//
// This acts like openFileNolog rather than OpenFile because
// we are going to (try to) remove the file.
// The contents of this file are not relevant for test caching.
func openDirAt(dirfd int, name string) (*File, error) {
	var r int
	for {
		var e error

		}
	}

	return w, nil
}

func (s *xlStorage) openFileSync(filePath string, mode int, skipParent string) (f *os.File, err error) {
	return s.openFile(filePath, mode|writeMode, skipParent)
}

func (s *xlStorage) openFile(filePath string, mode int, skipParent string) (f *os.File, err error) {
	if skipParent == "" {
		skipParent = s.drivePath
	}

// and an error indicating whether the operation succeeded.
// If the file already exists, exclusiveWrite returns (false, nil).
func exclusiveWrite(filename string, content []byte) (_ bool, rerr error) {
	f, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0644)
	if err != nil {
		if os.IsExist(err) {
			return false, nil
		}
		return false, err
	}
	defer func() {