| /* Copyright 2015 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. |
| ==============================================================================*/ |
| |
| #include <sys/time.h> |
| #include <time.h> |
| |
| #include "tensorflow/core/platform/env_time.h" |
| |
| namespace tensorflow { |
| |
| namespace { |
| |
| class PosixEnvTime : public EnvTime { |
| public: |
| PosixEnvTime() {} |
| |
| uint64 NowNanos() const override { |
| struct timespec ts; |
| clock_gettime(CLOCK_REALTIME, &ts); |
| return (static_cast<uint64>(ts.tv_sec) * kSecondsToNanos + |
| static_cast<uint64>(ts.tv_nsec)); |
| } |
| }; |
| |
| } // namespace |
| |
| #if defined(PLATFORM_POSIX) || defined(__ANDROID__) |
| EnvTime* EnvTime::Default() { |
| static EnvTime* default_env_time = new PosixEnvTime; |
| return default_env_time; |
| } |
| #endif |
| |
| } // namespace tensorflow |