| /* Copyright 2020 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. |
| ==============================================================================*/ |
| |
| // Reference implementation of timer functions. Platforms are not required to |
| // implement these timer methods, but they are required to enable profiling. |
| |
| // On platforms that have a POSIX stack or C library, it can be written using |
| // methods from <sys/time.h> or clock() from <time.h>. |
| |
| // To add an equivalent function for your own platform, create your own |
| // implementation file, and place it in a subfolder with named after the OS |
| // you're targeting. For example, see the Cortex M bare metal version in |
| // tensorflow/lite/micro/bluepill/micro_time.cc or the mbed one on |
| // tensorflow/lite/micro/mbed/micro_time.cc. |
| |
| #include "tensorflow/lite/micro/micro_time.h" |
| |
| namespace tflite { |
| |
| // Reference implementation of the ticks_per_second() function that's required |
| // for a platform to support Tensorflow Lite for Microcontrollers profiling. |
| // This returns 0 by default because timing is an optional feature that builds |
| // without errors on platforms that do not need it. |
| int32_t ticks_per_second() { return 0; } |
| |
| // Reference implementation of the GetCurrentTimeTicks() function that's |
| // required for a platform to support Tensorflow Lite for Microcontrollers |
| // profiling. This returns 0 by default because timing is an optional feature |
| // that builds without errors on platforms that do not need it. |
| int32_t GetCurrentTimeTicks() { return 0; } |
| |
| } // namespace tflite |
