func (fs *FS) OpenDir(dpath string) durablefs.Dir {
return &Dir{
conn: fs.conn,
zroot: fs.zroot,
dpath: dpath,
watch: zutil.InstallWatch(fs.conn, path.Join(fs.zroot, dpath)),
}
}
func makeDir(fs *FS, anchor string) (*Dir, error) {
dir := &Dir{
fs: fs,
anchor: anchor,
}
dir.watch = zutil.InstallWatch(fs.zookeeper, dir.zdir())
// The semantics of AnchorFS pretend that all directories always exist,
// which is not the case in Zookeeper. To make this work, we create the
// directory on access.
if err := zutil.CreateRecursive(dir.fs.zookeeper, dir.zdir(), zutil.PermitAll); err != nil {
return nil, err
}
return dir, nil
}