1 /* Copyright 2019 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_LITE_DELEGATES_GPU_CL_CL_EVENT_H_ 17 #define TENSORFLOW_LITE_DELEGATES_GPU_CL_CL_EVENT_H_ 18 19 #include <cstdint> 20 #include <string> 21 22 #include "tensorflow/lite/delegates/gpu/cl/opencl_wrapper.h" 23 24 namespace tflite { 25 namespace gpu { 26 namespace cl { 27 28 // A RAII wrapper around opencl event 29 class CLEvent { 30 public: CLEvent()31 CLEvent() {} 32 explicit CLEvent(cl_event event); 33 34 // Move only 35 CLEvent(CLEvent&& event); 36 CLEvent& operator=(CLEvent&& event); 37 CLEvent(const CLEvent&) = delete; 38 CLEvent& operator=(const CLEvent&) = delete; 39 40 ~CLEvent(); 41 42 uint64_t GetStartedTimeNs() const; 43 uint64_t GetFinishedTimeNs() const; 44 45 double GetEventTimeMs() const; 46 uint64_t GetEventTimeNs() const; 47 48 void Wait() const; 49 event()50 cl_event event() const { return event_; } 51 is_valid()52 bool is_valid() const { return event_ != nullptr; } 53 54 void SetName(const std::string& name); GetName()55 std::string GetName() const { return name_; } 56 57 private: 58 void Release(); 59 60 cl_event event_ = nullptr; 61 62 std::string name_; // optional, for profiling mostly 63 }; 64 65 } // namespace cl 66 } // namespace gpu 67 } // namespace tflite 68 69 #endif // TENSORFLOW_LITE_DELEGATES_GPU_CL_CL_EVENT_H_ 70