wip

weed/filer/redis3/kv_directory_children.go

@@ -0,0 +1,49 @@
+package redis3
+
+import (
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/util/bptree"
+	"github.com/go-redis/redis/v8"
+	"github.com/golang/protobuf/proto"
+)
+
+func insertChild(ctx context.Context, client redis.UniversalClient, key string, name string) error {
+	data, err := client.Get(ctx, key).Result()
+	if err != nil {
+		if err != redis.Nil {
+			return fmt.Errorf("read %s: %v", key, err)
+		}
+	}
+	rootNode := &bptree.ProtoNode{}
+	if err := proto.UnmarshalMerge([]byte(data), rootNode); err != nil {
+		return fmt.Errorf("decoding root for %s: %v", key, err)
+	}
+	tree := rootNode.ToBpTree()
+	tree.Add(bptree.String(name), nil)
+	return nil
+}
+
+func removeChild(ctx context.Context, client redis.UniversalClient, key string, name string) error {
+	data, err := client.Get(ctx, key).Result()
+	if err != nil {
+		if err != redis.Nil {
+			return fmt.Errorf("read %s: %v", key, err)
+		}
+	}
+	rootNode := &bptree.ProtoNode{}
+	if err := proto.UnmarshalMerge([]byte(data), rootNode); err != nil {
+		return fmt.Errorf("decoding root for %s: %v", key, err)
+	}
+	tree := rootNode.ToBpTree()
+	tree.Add(bptree.String(name), nil)
+	return nil
+}
+
+func removeChildren(ctx context.Context, client redis.UniversalClient, key string, onDeleteFn func(name string) error) error {
+	return nil
+}
+
+func iterateChildren(ctx context.Context, client redis.UniversalClient, key string, eachFn func(name string) error) error {
+	return nil
+}