func Serve(mountPoint, cgroupDir string) error {
c, err := fuse.Mount(
mountPoint,
fuse.FSName("cgroupfs"),
fuse.Subtype("cgroupfs"),
fuse.LocalVolume(),
fuse.VolumeName("cgroup volume"),
fuse.AllowOther(),
)
if err != nil {
return err
}
defer c.Close()
go handleStopSignals(mountPoint)
var srv *fusefs.Server
if os.Getenv("FUSE_DEBUG") != "" {
srv = fusefs.New(c, &fusefs.Config{
Debug: func(msg interface{}) {
fmt.Printf("%s\n", msg)
},
})
} else {
srv = fusefs.New(c, nil)
}
err = srv.Serve(fs.FS{cgroupDir})
if 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
}
// Mounted mounts the fuse.Server at a temporary directory.
//
// 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 Mounted(srv *fs.Server) (*Mount, error) {
dir, err := ioutil.TempDir("", "fusetest")
if err != nil {
return nil, err
}
c, err := fuse.Mount(dir)
if err != nil {
return nil, err
}
done := make(chan struct{})
serveErr := make(chan error, 1)
mnt := &Mount{
Dir: dir,
Conn: c,
Error: serveErr,
done: done,
}
go func() {
defer close(done)
serveErr <- srv.Serve(c)
}()
select {
case <-mnt.Conn.Ready:
if mnt.Conn.MountError != nil {
return nil, err
}
return mnt, err
case err = <-mnt.Error:
// Serve quit early
if err != nil {
return nil, err
}
return nil, errors.New("Serve exited early")
}
}
// Mount SVFS
c, err := fuse.Mount(mountpoint, mountOptions(device)...)
if err != nil {
goto Err
}
defer c.Close()
// Initialize SVFS
if err = fs.Init(); err != nil {
goto Err
}
// Serve SVFS
srv = fusefs.New(c, nil)
if err = srv.Serve(&fs); err != nil {
goto Err
}
// Check for mount errors
<-c.Ready
// Memory profiling
if memProf != "" {
createMemProf(memProf)
}
if err = c.MountError; err != nil {
goto Err
}