1 | /* Copyright 2021 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 | #include "tensorflow/core/common_runtime/cost_measurement_registry.h" |
17 | |
18 | #include <string> |
19 | #include <utility> |
20 | |
21 | #include "absl/container/flat_hash_map.h" |
22 | #include "absl/strings/string_view.h" |
23 | #include "tensorflow/core/common_runtime/cost_measurement.h" |
24 | #include "tensorflow/core/platform/logging.h" |
25 | |
26 | namespace tensorflow { |
27 | namespace { |
28 | |
29 | using RegistrationMap = |
30 | absl::flat_hash_map<std::string, CostMeasurementRegistry::Creator>; |
31 | |
32 | RegistrationMap* GetRegistrationMap() { |
33 | static RegistrationMap* registered_cost_measurements = new RegistrationMap; |
34 | return registered_cost_measurements; |
35 | } |
36 | |
37 | } // namespace |
38 | |
39 | std::unique_ptr<CostMeasurement> CostMeasurementRegistry::CreateByNameOrNull( |
40 | const std::string& name, const CostMeasurement::Context& context) { |
41 | const auto it = GetRegistrationMap()->find(name); |
42 | if (it == GetRegistrationMap()->end()) { |
43 | LOG_FIRST_N(ERROR, 1) << "Cost type "<< name << " is unregistered."; |
44 | return nullptr; |
45 | } |
46 | return it->second(context); |
47 | } |
48 | |
49 | void CostMeasurementRegistry::RegisterCostMeasurement(absl::string_view name, |
50 | Creator creator) { |
51 | const auto it = GetRegistrationMap()->find(name); |
52 | CHECK(it == GetRegistrationMap()->end()) // Crash OK |
53 | << "CostMeasurement "<< name << " is registered twice."; |
54 | GetRegistrationMap()->emplace(name, std::move(creator)); |
55 | } |
56 | |
57 | } // namespace tensorflow |
58 |