+func (v *UnixVolume) Touch(loc string) error {
+ p := v.blockPath(loc)
+ f, err := os.OpenFile(p, os.O_RDWR|os.O_APPEND, 0644)
+ if err != nil {
+ return err
+ }
+ if e := lockfile(f); e != nil {
+ return e
+ }
+ defer unlockfile(f)
+ now := time.Now().Unix()
+ utime := syscall.Utimbuf{now, now}
+ return syscall.Utime(p, &utime)
+}
+
+func (v *UnixVolume) Mtime(loc string) (time.Time, error) {
+ p := v.blockPath(loc)
+ if fi, err := os.Stat(p); err != nil {
+ return time.Time{}, err
+ } else {
+ return fi.ModTime(), nil
+ }
+}
+