83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
/*
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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/io/async/ScopedEventBaseThread.h>
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#include <thread>
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#include <folly/Function.h>
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#include <folly/Range.h>
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#include <folly/io/async/EventBaseManager.h>
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#include <folly/system/ThreadName.h>
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using namespace std;
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namespace folly {
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static void run(
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EventBaseManager* ebm,
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EventBase* eb,
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folly::Baton<>* stop,
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const StringPiece& name) {
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if (!name.empty()) {
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folly::setThreadName(name);
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}
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ebm->setEventBase(eb, false);
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eb->loopForever();
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// must destruct in io thread for on-destruction callbacks
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eb->runOnDestruction([=] { ebm->clearEventBase(); });
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// wait until terminateLoopSoon() is complete
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stop->wait(folly::Baton<>::wait_options().logging_enabled(false));
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eb->~EventBase();
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}
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ScopedEventBaseThread::ScopedEventBaseThread()
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: ScopedEventBaseThread(nullptr, "") {}
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ScopedEventBaseThread::ScopedEventBaseThread(StringPiece name)
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: ScopedEventBaseThread(nullptr, name) {}
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ScopedEventBaseThread::ScopedEventBaseThread(EventBaseManager* ebm)
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: ScopedEventBaseThread(ebm, "") {}
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ScopedEventBaseThread::ScopedEventBaseThread(
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EventBaseManager* ebm,
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StringPiece name)
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: ScopedEventBaseThread(
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std::unique_ptr<EventBaseBackendBase>(),
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ebm,
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name) {}
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ScopedEventBaseThread::ScopedEventBaseThread(
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std::unique_ptr<EventBaseBackendBase>&& backend,
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EventBaseManager* ebm,
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StringPiece name)
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: ebm_(ebm ? ebm : EventBaseManager::get()) {
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new (&eb_) EventBase(std::move(backend));
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th_ = thread(run, ebm_, &eb_, &stop_, name);
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eb_.waitUntilRunning();
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}
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ScopedEventBaseThread::~ScopedEventBaseThread() {
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eb_.terminateLoopSoon();
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stop_.post();
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th_.join();
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}
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} // namespace folly
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