| /* Copyright 2016 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 "tensorflow/stream_executor/host/host_timer.h" |
| |
| #include "tensorflow/stream_executor/platform/logging.h" |
| #include "tensorflow/stream_executor/stream.h" |
| #include "tensorflow/stream_executor/stream_executor_internal.h" |
| |
| namespace stream_executor { |
| namespace host { |
| |
| using std::chrono::duration_cast; |
| |
| bool HostTimer::Start(Stream* stream) { |
| return stream->ThenDoHostCallback([this]() { this->StartNow(); }).ok(); |
| } |
| |
| bool HostTimer::Stop(Stream* stream) { |
| return stream->ThenDoHostCallback([this]() { this->StopNow(); }).ok(); |
| } |
| |
| uint64 HostTimer::Microseconds() const { |
| return duration_cast<std::chrono::microseconds>(duration_).count(); |
| } |
| |
| uint64 HostTimer::Nanoseconds() const { |
| return duration_cast<std::chrono::nanoseconds>(duration_).count(); |
| } |
| |
| void HostTimer::StartNow() { start_time_ = clock::now(); } |
| |
| void HostTimer::StopNow() { duration_ = clock::now() - start_time_; } |
| |
| } // namespace host |
| } // namespace stream_executor |