Files
ark_js_runtime/ecmascript/thread/thread_safe_queue.h
T
zhangyukun 7ffcc4b20f Sync js_runtime to openharmony
Signed-off-by: zhangyukun <zhangyukun8@huawei.com>
2021-09-08 09:20:53 +08:00

69 lines
1.6 KiB
C++

/*
* Copyright (c) 2021 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ECMASCRIPT_THREAD_THREAD_SAFE_QUEUE_H
#define ECMASCRIPT_THREAD_THREAD_SAFE_QUEUE_H
#include "os/mutex.h"
#include <queue>
namespace panda::ecmascript {
template<typename T>
class ThreadSafeQueue {
public:
explicit ThreadSafeQueue() = default;
~ThreadSafeQueue() = default;
bool empty()
{
os::memory::LockHolder lock(mutex_);
return queue_.empty();
}
int size()
{
os::memory::LockHolder lock(mutex_);
return queue_.size();
}
void enqueue(T &t)
{
os::memory::LockHolder lock(mutex_);
queue_.push(t);
}
bool dequeue(T &t)
{
os::memory::LockHolder lock(mutex_);
if (queue_.empty()) {
return false;
}
t = std::move(queue_.front());
queue_.pop();
return true;
}
private:
NO_COPY_SEMANTIC(ThreadSafeQueue);
NO_MOVE_SEMANTIC(ThreadSafeQueue);
std::queue<T> queue_;
os::memory::Mutex mutex_;
};
} // namespace panda::ecmascript
#endif // ECMASCRIPT_THREAD_THREAD_SAFE_QUEUE_H