init

DB.go

@@ -0,0 +1,20 @@
+package imparse
+
+import "context"
+
+type MsgIndex struct {
+	Mid        string
+	Seq        string
+	SenderId   string
+	CreateTime uint64
+}
+
+type Cache interface {
+	GetMsg(ctx context.Context, from, seq string) (*MsgIndex, error)
+	AddMsg(ctx context.Context, uid string, m *MsgIndex) error
+	GetMid(ctx context.Context) (id int64, err error)
+}
+
+type DB interface {
+	SaveMsg(frame Frame) error
+}