Method Lock

src/cmd/linuxkit/cache/provider.go:55–70

Lock locks the cache directory to prevent concurrent access

()

// Lock locks the cache directory to prevent concurrent access
func (p *Provider) Lock() error {
	p.lockMut.Lock()
	defer p.lockMut.Unlock()

	// if the lock is already set, we do not need to do anything
	if p.lock != nil {
		return nil
	}
	var lockFile = filepath.Join(p.dir, lockfile)
	lock, err := util.Lock(lockFile)
	if err != nil {
		return fmt.Errorf("unable to retrieve cache lock %s: %v", lockFile, err)
	}
	p.lock = lock
	return nil
}

// Unlock releases the lock on the cache directory
func (p *Provider) Unlock() {