func GetUserStore(dir string) (*UserFileStore, error) {
var bf *fmap.BlockFile
var users *bptree.BpTree
path := filepath.Join(dir, "users.bptree")
err := createOrOpen(path,
func(path string) (err error) {
bf, err = fmap.CreateBlockFile(path)
if err != nil {
return err
}
users, err = bptree.New(bf, -1, -1)
return err
},
func(path string) (err error) {
bf, err = fmap.OpenBlockFile(path)
if err != nil {
return err
}
users, err = bptree.Open(bf)
return err
},
)
if err != nil {
return nil, err
}
s := &UserFileStore{
path: path,
bf: bf,
users: users,
}
return s, bf.Sync()
}
func OpenBpTree(
path string,
serializeKey func([]byte) []byte,
serializeValue func(*goiso.SubGraph) []byte,
deserializeKey func([]byte) []byte,
deserializeValue func([]byte) *goiso.SubGraph,
) (*BpTree, error) {
bf, err := fmap.OpenBlockFile(path)
if err != nil {
return nil, err
}
bpt, err := bptree.Open(bf)
if err != nil {
return nil, err
}
b := &BpTree{
bf: bf,
bpt: bpt,
serializeKey: serializeKey,
serializeValue: serializeValue,
deserializeKey: deserializeKey,
deserializeValue: deserializeValue,
}
return b, nil
}
func OpenFs2Sets(path string) *Fs2Sets {
bf, err := fmap.OpenBlockFile(path)
assert_ok(err)
bpt, err := bptree.Open(bf)
assert_ok(err)
return &Fs2Sets{
bf: bf,
bpt: bpt,
}
}
func OpenFs2BpTree(g *goiso.Graph, path string) *Fs2BpTree {
bf, err := fmap.OpenBlockFile(path)
assert_ok(err)
bpt, err := bptree.Open(bf)
assert_ok(err)
return &Fs2BpTree{
g: g,
bf: bf,
bpt: bpt,
}
}
func OpenBpTree(path string) (*BpTree, error) {
bf, err := fmap.OpenBlockFile(path)
if err != nil {
return nil, err
}
bpt, err := bptree.Open(bf)
if err != nil {
return nil, err
}
b := &BpTree{
bf: bf,
bpt: bpt,
}
return b, nil
}