1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/
#include "tensorflow/c/python_api.h"
#include "tensorflow/c/c_api_internal.h"
#include "tensorflow/python/framework/cpp_shape_inference.pb.h"
namespace tensorflow {
void AddControlInput(TF_Graph* graph, TF_Operation* op, TF_Operation* input) {
mutex_lock l(graph->mu);
graph->graph.AddControlEdge(&input->node, &op->node);
RecordMutation(graph, *op, "adding control input");
}
void SetAttr(TF_Graph* graph, TF_Operation* op, const char* attr_name,
TF_Buffer* attr_value_proto, TF_Status* status) {
AttrValue attr_val;
if (!attr_val.ParseFromArray(attr_value_proto->data,
attr_value_proto->length)) {
status->status =
tensorflow::errors::InvalidArgument("Invalid AttrValue proto");
return;
}
mutex_lock l(graph->mu);
op->node.AddAttr(attr_name, attr_val);
RecordMutation(graph, *op, "setting attribute");
}
void SetRequestedDevice(TF_Graph* graph, TF_Operation* op, const char* device) {
mutex_lock l(graph->mu);
op->node.set_requested_device(device);
RecordMutation(graph, *op, "setting device");
}
void UpdateEdge(TF_Graph* graph, TF_Output new_src, TF_Input dst,
TF_Status* status) {
mutex_lock l(graph->mu);
tensorflow::shape_inference::InferenceContext* ic =
graph->refiner.GetContext(&new_src.oper->node);
if (ic->num_outputs() <= new_src.index) {
status->status = tensorflow::errors::OutOfRange(
"Cannot update edge. Output index [", new_src.index,
"] is greater than the number of total outputs [", ic->num_outputs(),
"].");
return;
}
tensorflow::shape_inference::ShapeHandle shape = ic->output(new_src.index);
tensorflow::shape_inference::InferenceContext* ic_dst =
graph->refiner.GetContext(&dst.oper->node);
if (ic_dst->num_inputs() <= dst.index) {
status->status = tensorflow::errors::OutOfRange(
"Cannot update edge. Input index [", dst.index,
"] is greater than the number of total inputs [", ic_dst->num_inputs(),
"].");
return;
}
if (!ic_dst->MergeInput(dst.index, shape)) {
status->status = tensorflow::errors::InvalidArgument(
"Cannot update edge, incompatible shapes: ", ic_dst->DebugString(shape),
" and ", ic_dst->DebugString(ic_dst->input(dst.index)), ".");
return;
}
status->status = graph->graph.UpdateEdge(&new_src.oper->node, new_src.index,
&dst.oper->node, dst.index);
if (status->status.ok()) {
// This modification only updates the destination node for
// the purposes of running this graph in a session. Thus, we don't
// record the source node as being modified.
RecordMutation(graph, *dst.oper, "updating input tensor");
}
}
void RemoveAllControlInputs(TF_Graph* graph, TF_Operation* op) {
mutex_lock l(graph->mu);
std::vector<const Edge*> control_edges;
for (const Edge* edge : op->node.in_edges()) {
if (!edge->IsControlEdge()) continue;
control_edges.push_back(edge);
}
for (const Edge* edge : control_edges) {
graph->graph.RemoveControlEdge(edge);
}
}
void SetRequireShapeInferenceFns(TF_Graph* graph, bool require) {
mutex_lock l(graph->mu);
graph->refiner.set_require_shape_inference_fns(require);
}
void ExtendSession(TF_Session* session, TF_Status* status) {
ExtendSessionGraphHelper(session, status);
session->extend_before_run = false;
}
std::string GetHandleShapeAndType(TF_Graph* graph, TF_Output output) {
Node* node = &output.oper->node;
CppShapeInferenceResult::HandleData handle_data;
handle_data.set_is_set(true);
{
mutex_lock l(graph->mu);
tensorflow::shape_inference::InferenceContext* ic =
graph->refiner.GetContext(node);
CHECK(ic != nullptr);
CHECK_LT(output.index, ic->num_outputs());
const auto* shapes_and_types =
ic->output_handle_shapes_and_types(output.index);
if (shapes_and_types == nullptr) return "";
for (const auto& p : *shapes_and_types) {
auto* out_shape_and_type = handle_data.add_shape_and_type();
ic->ShapeHandleToProto(p.shape, out_shape_and_type->mutable_shape());
out_shape_and_type->set_dtype(p.dtype);
}
}
string result;
handle_data.SerializeToString(&result);
return result;
}
void SetHandleShapeAndType(TF_Graph* graph, TF_Output output, const void* proto,
size_t proto_len, TF_Status* status) {
tensorflow::CppShapeInferenceResult::HandleData handle_data;
if (!handle_data.ParseFromArray(proto, proto_len)) {
status->status = tensorflow::errors::InvalidArgument(
"Couldn't deserialize HandleData proto");
return;
}
DCHECK(handle_data.is_set());
tensorflow::mutex_lock l(graph->mu);
tensorflow::shape_inference::InferenceContext* ic =
graph->refiner.GetContext(&output.oper->node);
std::vector<tensorflow::shape_inference::ShapeAndType> shapes_and_types;
for (const auto& shape_and_type_proto : handle_data.shape_and_type()) {
tensorflow::shape_inference::ShapeHandle shape;
status->status =
ic->MakeShapeFromShapeProto(shape_and_type_proto.shape(), &shape);
if (!status->status.ok()) return;
shapes_and_types.emplace_back(shape, shape_and_type_proto.dtype());
}
ic->set_output_handle_shapes_and_types(output.index, shapes_and_types);
}
} // namespace tensorflow
|
