[#811] service/container: Invalidate cache records on update requests

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

pkg/services/container/morph/executor.go

@@ -21,6 +21,8 @@ type morphExecutor struct {
 	wrapper *wrapper.Wrapper
 
 	rdr Reader
+
+	invalidator Invalidator
 }
 
 // Reader is an interface of read-only container storage.
@@ -34,10 +36,27 @@ type Reader interface {
 	List(*owner.ID) ([]*cid.ID, error)
 }
 
-func NewExecutor(w *wrapper.Wrapper, rdr Reader) containerSvc.ServiceExecutor {
+// Invalidator is an interface of local cache invalidator. It removes cached
+// values in order to synchronize updated data in the side chain faster.
+type Invalidator interface {
+	// InvalidateContainer from the local container cache if it exists.
+	InvalidateContainer(*cid.ID)
+	// InvalidateEACL from the local eACL cache if it exists.
+	InvalidateEACL(*cid.ID)
+	// InvalidateContainerList from the local cache of container list results
+	// if it exists.
+	InvalidateContainerList(*owner.ID)
+	// InvalidateContainerListByCID from the local cache of container list
+	// results if it exists. Container list source uses owner.ID as a key,
+	// so invalidating cache record by the value requires different approach.
+	InvalidateContainerListByCID(*cid.ID)
+}
+
+func NewExecutor(w *wrapper.Wrapper, rdr Reader, i Invalidator) containerSvc.ServiceExecutor {
 	return &morphExecutor{
-		wrapper: w,
-		rdr:     rdr,
+		wrapper:     w,
+		rdr:         rdr,
+		invalidator: i,
 	}
 }
 
@@ -57,6 +76,8 @@ func (s *morphExecutor) Put(ctx containerSvc.ContextWithToken, body *container.P
 		return nil, err
 	}
 
+	s.invalidator.InvalidateContainerList(cnr.OwnerID())
+
 	res := new(container.PutResponseBody)
 	res.SetContainerID(cid.ToV2())
 
@@ -79,6 +100,13 @@ func (s *morphExecutor) Delete(ctx containerSvc.ContextWithToken, body *containe
 		return nil, err
 	}
 
+	s.invalidator.InvalidateContainer(id)
+	s.invalidator.InvalidateEACL(id)
+
+	// it is faster to use slower invalidation by CID than making separate
+	// network request to fetch owner ID of the container.
+	s.invalidator.InvalidateContainerListByCID(id)
+
 	return new(container.DeleteResponseBody), nil
 }
 
@@ -128,8 +156,13 @@ func (s *morphExecutor) SetExtendedACL(ctx containerSvc.ContextWithToken, body *
 	)
 
 	err := wrapper.PutEACL(s.wrapper, table)
+	if err != nil {
+		return nil, err
+	}
 
-	return new(container.SetExtendedACLResponseBody), err
+	s.invalidator.InvalidateEACL(table.CID())
+
+	return new(container.SetExtendedACLResponseBody), nil
 }
 
 func (s *morphExecutor) GetExtendedACL(ctx context.Context, body *container.GetExtendedACLRequestBody) (*container.GetExtendedACLResponseBody, error) {