45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
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/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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 <folly/synchronization/HazptrThreadPoolExecutor.h>
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#include <folly/Singleton.h>
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#include <folly/executors/CPUThreadPoolExecutor.h>
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namespace {
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struct HazptrTPETag {};
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folly::Singleton<folly::CPUThreadPoolExecutor, HazptrTPETag> hazptr_tpe_([] {
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return new folly::CPUThreadPoolExecutor(1);
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});
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folly::Executor* get_hazptr_tpe() {
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auto ex = hazptr_tpe_.try_get();
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return ex ? ex.get() : nullptr;
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}
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} // namespace
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namespace folly {
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void enable_hazptr_thread_pool_executor() {
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if (FLAGS_folly_hazptr_use_executor) {
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default_hazptr_domain().set_executor(&get_hazptr_tpe);
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}
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}
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} // namespace folly
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