You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: lockfile.go
    path of file: ./repos/octant/vendor/github.com/containers/storage/pkg/lockfile
    
    the code of the file until where you have to start completion: package lockfile

import (
	"path/filepath"
	"sync"
	"tim
    
func getLockfile(path string, ro bool) (Locker, error) {
	lockfilesLock.Lock()
	defer lockfilesLock.Unlock()
	if lockfiles == nil {
		lockfiles = make(map[string]Locker)
	}
	cleanPath, err := filepath.Abs(path)
	if err != nil {
		return nil, errors.Wrapf(err, "error ensuring that path %q is an absolute path", path)
	}
	if locker, ok := lockfiles[cleanPath]; ok {
		if ro && locker.IsReadWrite() {
			return nil, errors.Errorf("lock %q is not a read-only lock", cleanPath)
		}
		if !ro && !locker.IsReadWrite() {
			return nil, errors.Errorf("lock %q is not a read-write lock", cleanPath)
		}
		return locker, nil
	}
	locker, err := createLockerForPath(cleanPath, ro) // platform-dependent locker
	if err != nil {
		return nil, err
	}
	lockfiles[cleanPath] = locker
	return locker, nil
}