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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_COMMON_RUNTIME_FUNCTION_BODY_H_
17 #define TENSORFLOW_CORE_COMMON_RUNTIME_FUNCTION_BODY_H_
18 
19 #include "tensorflow/core/framework/function.h"
20 #include "tensorflow/core/framework/types.h"
21 #include "tensorflow/core/lib/gtl/inlined_vector.h"
22 
23 namespace tensorflow {
24 
25 class Graph;
26 class Node;
27 
28 // FunctionLibraryRuntime::GetFunctionBody returns a description of an
29 // instantiated function that is represented as a Graph with arg/ret
30 // nodes annotated.
31 struct FunctionBody {
32   FunctionDef fdef;
33   Graph* graph = nullptr;  // owned.
34   DataTypeVector arg_types;
35   DataTypeVector ret_types;
36   // arg_nodes[i] contains the i'th function input. In other words,
37   // GetNodeAttr(arg_nodes[i]->attrs(), "index") == i.
38   gtl::InlinedVector<Node*, 4> arg_nodes;
39   // ret_nodes[i] contains the i'th function output. In other words,
40   // GetNodeAttr(ret_nodes[i]->attrs(), "index") == i.
41   gtl::InlinedVector<Node*, 4> ret_nodes;
42   gtl::InlinedVector<Node*, 4> control_ret_nodes;
43 
FunctionBodyFunctionBody44   FunctionBody() {}
45   FunctionBody(const FunctionDef& f, DataTypeSlice arg_types,
46                DataTypeSlice ret_types, Graph* g);
47   ~FunctionBody();
48 };
49 
50 }  // end namespace tensorflow
51 
52 #endif  // TENSORFLOW_CORE_COMMON_RUNTIME_FUNCTION_BODY_H_
53