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 #include "tensorflow/core/platform/tracing.h" 17 18 #include <array> 19 #include <atomic> 20 21 #include "tensorflow/core/platform/hash.h" 22 23 namespace tensorflow { 24 namespace tracing { 25 namespace { 26 std::atomic<uint64> unique_arg{1}; 27 } // namespace 28 GetEventCategoryName(EventCategory category)29const char* GetEventCategoryName(EventCategory category) { 30 switch (category) { 31 case EventCategory::kScheduleClosure: 32 return "ScheduleClosure"; 33 case EventCategory::kRunClosure: 34 return "RunClosure"; 35 case EventCategory::kCompute: 36 return "Compute"; 37 default: 38 return "Unknown"; 39 } 40 } 41 42 std::array<const EventCollector*, GetNumEventCategories()> 43 EventCollector::instances_; 44 SetEventCollector(EventCategory category,const EventCollector * collector)45void SetEventCollector(EventCategory category, 46 const EventCollector* collector) { 47 EventCollector::instances_[static_cast<unsigned>(category)] = collector; 48 } 49 GetUniqueArg()50uint64 GetUniqueArg() { 51 return unique_arg.fetch_add(1, std::memory_order_relaxed); 52 } 53 GetArgForName(StringPiece name)54uint64 GetArgForName(StringPiece name) { 55 return Hash64(name.data(), name.size()); 56 } 57 58 } // namespace tracing 59 } // namespace tensorflow 60