00001 // Copyright 2017 The Abseil Authors. 00002 // 00003 // Licensed under the Apache License, Version 2.0 (the "License"); 00004 // you may not use this file except in compliance with the License. 00005 // You may obtain a copy of the License at 00006 // 00007 // https://www.apache.org/licenses/LICENSE-2.0 00008 // 00009 // Unless required by applicable law or agreed to in writing, software 00010 // distributed under the License is distributed on an "AS IS" BASIS, 00011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00012 // See the License for the specific language governing permissions and 00013 // limitations under the License. 00014 00015 #include "benchmark/benchmark.h" 00016 #include "absl/base/internal/thread_identity.h" 00017 #include "absl/synchronization/internal/create_thread_identity.h" 00018 #include "absl/synchronization/internal/per_thread_sem.h" 00019 00020 namespace { 00021 00022 void BM_SafeCurrentThreadIdentity(benchmark::State& state) { 00023 for (auto _ : state) { 00024 benchmark::DoNotOptimize( 00025 absl::synchronization_internal::GetOrCreateCurrentThreadIdentity()); 00026 } 00027 } 00028 BENCHMARK(BM_SafeCurrentThreadIdentity); 00029 00030 void BM_UnsafeCurrentThreadIdentity(benchmark::State& state) { 00031 for (auto _ : state) { 00032 benchmark::DoNotOptimize( 00033 absl::base_internal::CurrentThreadIdentityIfPresent()); 00034 } 00035 } 00036 BENCHMARK(BM_UnsafeCurrentThreadIdentity); 00037 00038 } // namespace