// umount is called exactly once to unmount this service.
// note that closing the connection will not always unmount
// properly. If that happens, we bring out the big guns
// (mount.ForceUnmountManyTimes, exec unmount).
func (m *mount) unmount() error {
log.Infof("Unmounting %s", m.MountPoint())
// try unmounting with fuse lib
err := fuse.Unmount(m.MountPoint())
if err == nil {
m.setActive(false)
return nil
}
log.Warningf("fuse unmount err: %s", err)
// try closing the fuseConn
err = m.fuseConn.Close()
if err == nil {
m.setActive(false)
return nil
}
log.Warningf("fuse conn error: %s", err)
// try mount.ForceUnmountManyTimes
if err := ForceUnmountManyTimes(m, 10); err != nil {
return err
}
log.Infof("Seemingly unmounted %s", m.MountPoint())
m.setActive(false)
return nil
}
// Close unmounts the filesystem and waits for fs.Serve to return. Any
// returned error will be stored in Err. It is safe to call Close
// multiple times.
func (mnt *Mount) Close() {
if mnt.closed {
return
}
mnt.closed = true
for tries := 0; tries < 1000; tries++ {
err := fuse.Unmount(mnt.Dir)
if err != nil {
// TODO do more than log?
log.Printf("unmount error: %v", err)
time.Sleep(10 * time.Millisecond)
continue
}
break
}
<-mnt.done
mnt.Conn.Close()
os.Remove(mnt.Dir)
}