Example #1
0
func run(mountpoint string) error {
	c, err := fuse.Mount(
		mountpoint,
		fuse.FSName("clock"),
		fuse.Subtype("clockfsfs"),
		fuse.LocalVolume(),
		fuse.VolumeName("Clock filesystem"),
	)
	if err != nil {
		return err
	}
	defer c.Close()

	if p := c.Protocol(); !p.HasInvalidate() {
		return fmt.Errorf("kernel FUSE support is too old to have invalidations: version %v", p)
	}

	srv := fs.New(c, nil)
	filesys := &FS{
		// We pre-create the clock node so that it's always the same
		// object returned from all the Lookups. You could carefully
		// track its lifetime between Lookup&Forget, and have the
		// ticking & invalidation happen only when active, but let's
		// keep this example simple.
		clockFile: &File{
			fuse: srv,
		},
	}
	filesys.clockFile.tick()
	// This goroutine never exits. That's fine for this example.
	go filesys.clockFile.update()
	if err := srv.Serve(filesys); err != nil {
		return err
	}

	// Check if the mount process has an error to report.
	<-c.Ready
	if err := c.MountError; err != nil {
		return err
	}
	return nil
}
Example #2
0
// MountedFunc mounts a filesystem at a temporary directory. The
// filesystem used is constructed by calling a function, to allow
// storing fuse.Conn and fs.Server in the FS.
//
// It also waits until the filesystem is known to be visible (OS X
// workaround).
//
// After successful return, caller must clean up by calling Close.
func MountedFunc(fn func(*Mount) fs.FS, conf *fs.Config, options ...fuse.MountOption) (*Mount, error) {
	dir, err := ioutil.TempDir("", "fusetest")
	if err != nil {
		return nil, err
	}
	c, err := fuse.Mount(dir, options...)
	if err != nil {
		return nil, err
	}
	server := fs.New(c, conf)
	done := make(chan struct{})
	serveErr := make(chan error, 1)
	mnt := &Mount{
		Dir:    dir,
		Conn:   c,
		Server: server,
		Error:  serveErr,
		done:   done,
	}
	filesys := fn(mnt)
	go func() {
		defer close(done)
		serveErr <- server.Serve(filesys)
	}()

	select {
	case <-mnt.Conn.Ready:
		if err := mnt.Conn.MountError; err != nil {
			return nil, err
		}
		return mnt, nil
	case err = <-mnt.Error:
		// Serve quit early
		if err != nil {
			return nil, err
		}
		return nil, errors.New("Serve exited early")
	}
}