Method TryLock

internal/lockfile/lockfile.go:48–62

TryLock acquires an exclusive non-blocking lock; auto-released on process exit.

()

// TryLock acquires an exclusive non-blocking lock; auto-released on process exit.
func (l *LockFile) TryLock() error {
	if l.file != nil {
		return fmt.Errorf("%w: %s", ErrHeld, l.path)
	}
	f, err := vfs.OpenFile(l.path, os.O_CREATE|os.O_RDWR, 0600)
	if err != nil {
		return fmt.Errorf("open lock file: %w", err)
	}
	if err := tryLockFile(f); err != nil {
		f.Close()
		return err
	}
	l.file = f
	return nil
}

// Unlock keeps the file on disk to avoid inode-reuse races between unlock and competing open+flock.
func (l *LockFile) Unlock() error {