2 * Copyright 2017 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <folly/io/async/ScopedEventBaseThread.h>
21 #include <folly/Function.h>
22 #include <folly/Memory.h>
23 #include <folly/io/async/EventBaseManager.h>
29 static void run(EventBaseManager* ebm, EventBase* eb) {
30 ebm->setEventBase(eb, false);
33 // must destruct in io thread for on-destruction callbacks
34 EventBase::StackFunctionLoopCallback cb([=] { ebm->clearEventBase(); });
35 eb->runOnDestruction(&cb);
39 ScopedEventBaseThread::ScopedEventBaseThread()
40 : ScopedEventBaseThread(nullptr) {}
42 ScopedEventBaseThread::ScopedEventBaseThread(EventBaseManager* ebm)
43 : ebm_(ebm ? ebm : EventBaseManager::get()) {
44 new (&eb_) EventBase();
45 th_ = thread(run, ebm_, &eb_);
46 eb_.waitUntilRunning();
49 ScopedEventBaseThread::~ScopedEventBaseThread() {
50 eb_.terminateLoopSoon();