1 /* Copyright 2015 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #ifndef TENSORFLOW_CORE_GRAPH_VALIDATE_H_ 17 #define TENSORFLOW_CORE_GRAPH_VALIDATE_H_ 18 19 #include "tensorflow/core/framework/graph.pb.h" 20 #include "tensorflow/core/framework/op.h" 21 #include "tensorflow/core/graph/graph.h" 22 #include "tensorflow/core/lib/core/status.h" 23 24 namespace tensorflow { 25 namespace graph { 26 27 // Returns OK if every NodeDef in `graph_def` is valid with respect to 28 // its corresponding OpDef (as defined by ValidateNodeDef()) as 29 // registered in `op_registry`. Also checks for deprecated ops. 30 // 31 // REQUIRES: 32 // * `op_registry` is not nullptr. 33 // * `graph_def` has default attrs filled in (see AddDefaultAttrsToGraphDef()). 34 Status ValidateGraphDef(const GraphDef& graph_def, 35 const OpRegistryInterface& op_registry); 36 37 // Like ValidateGraphDef() except it makes a copy of `graph_def` and calls 38 // AddDefaultAttrsToGraphDef() on the copy, removing that requirement from the 39 // caller. 40 Status ValidateGraphDefAgainstOpRegistry( 41 const GraphDef& graph_def, const OpRegistryInterface& op_registry); 42 43 // Like ValidateGraphDefAgainstOpRegistry() except it takes an OpList 44 // instead of an OpRegistryInterface. Note that the OpList need not 45 // have descriptions, which can be a big space savings, see 46 // GetOpListForValidation() below. 47 Status ValidateGraphDefAgainstOpList(const GraphDef& graph_def, 48 const OpList& op_list); 49 50 // Get an OpList from `*op_registry` with all the descriptions removed. 51 void GetOpListForValidation( 52 OpList* op_list, const OpRegistry& op_registry = *OpRegistry::Global()); 53 54 // Validate that the graph has no cycle except for legal while loop cycles. 55 // This traverses the specified nodes in topological order to verify there are 56 // no cycles. Starting with inputless nodes, it visits nodes whose inputs have 57 // all been visited, and counts the total number of visited nodes. If there is a 58 // cycle, nodes in the cycle will never be visited, and the visited count will 59 // be less than the total node count. 60 Status ValidateGraphHasNoCycle(const Graph& graph); 61 62 // Returns OK if the graph has no duplicate node names. 63 Status VerifyNoDuplicateNodeNames(const GraphDef& graph); 64 65 } // namespace graph 66 } // namespace tensorflow 67 68 #endif // TENSORFLOW_CORE_GRAPH_VALIDATE_H_ 69