Merge pull request #4 from perfmode/master

feat(interface) add ThreadsafeDatastore interface

datastore.go

@@ -56,6 +56,11 @@ type Datastore interface {
 	KeyList() ([]Key, error)
 }
 
+type ThreadSafeDatastore interface {
+	Datastore
+	IsThreadSafe()
+}
+
 // Errors
 
 // ErrNotFound is returned by Get, Has, and Delete when a datastore does not

leveldb/datastore.go

@@ -13,7 +13,7 @@ type Datastore struct {
 
 type Options opt.Options
 
-func NewDatastore(path string, opts *Options) (*Datastore, error) {
+func NewDatastore(path string, opts *Options) (ds.ThreadSafeDatastore, error) {
 	var nopts opt.Options
 	if opts != nil {
 		nopts = opt.Options(*opts)
@@ -76,3 +76,5 @@ func (d *Datastore) KeyList() ([]ds.Key, error) {
 func (d *Datastore) Close() (err error) {
 	return d.DB.Close()
 }
+
+func (d *Datastore) IsThreadSafe() {}