1 /* Copyright 2020 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 #ifndef TENSORFLOW_LITE_MICRO_MICRO_TIME_H_ 16 #define TENSORFLOW_LITE_MICRO_MICRO_TIME_H_ 17 18 #include <cstdint> 19 20 namespace tflite { 21 22 // These functions should be implemented by each target platform, and provide an 23 // accurate tick count along with how many ticks there are per second. 24 int32_t ticks_per_second(); 25 26 // Return time in ticks. The meaning of a tick varies per platform. 27 int32_t GetCurrentTimeTicks(); 28 TicksToMs(int32_t ticks)29inline int32_t TicksToMs(int32_t ticks) { 30 return static_cast<int32_t>(1000.0f * static_cast<float>(ticks) / 31 static_cast<float>(ticks_per_second())); 32 } 33 34 } // namespace tflite 35 36 #endif // TENSORFLOW_LITE_MICRO_MICRO_TIME_H_ 37