4764bf2986
Step 1 of re-namespace'ing StreamExecutor into ::stream_executor. This moves everything inside of stream_executor/..., and leaves a namespace alias into ::perftools::gputools. The next steps will clean up users to use the new namespace. This is mostly a mechanical change, but it also includes a bunch of non-mechanical changes that ideally would be split out into separate patches. Unfortunately they all sort of need to be shoved in here for various reasons: - forward declarations need to be in the same namespace as the actual types, so we need to change all forward declarations of StreamExecutor types in this one patch. - Uses of these forward declarations need to be changed to the new namespace (or otherwise we need to add a namespace alias to the relevant header, but this is pretty ugly). - Various initialization code needs to live in StreamExecutor's "real" namespace, so all this needs to be changed. PiperOrigin-RevId: 193256128
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
/* Copyright 2016 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#include "tensorflow/stream_executor/host/host_timer.h"
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#include "tensorflow/stream_executor/platform/logging.h"
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#include "tensorflow/stream_executor/stream.h"
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#include "tensorflow/stream_executor/stream_executor_internal.h"
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namespace stream_executor {
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namespace host {
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using std::chrono::duration_cast;
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bool HostTimer::Start(Stream* stream) {
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return stream->ThenDoHostCallback([this]() { this->StartNow(); }).ok();
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}
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bool HostTimer::Stop(Stream* stream) {
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return stream->ThenDoHostCallback([this]() { this->StopNow(); }).ok();
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}
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uint64 HostTimer::Microseconds() const {
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return duration_cast<std::chrono::microseconds>(duration_).count();
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}
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uint64 HostTimer::Nanoseconds() const {
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return duration_cast<std::chrono::nanoseconds>(duration_).count();
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}
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void HostTimer::StartNow() { start_time_ = clock::now(); }
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void HostTimer::StopNow() { duration_ = clock::now() - start_time_; }
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} // namespace host
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} // namespace stream_executor
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