xref: /commonlibrary/ets_utils/js_concurrent_module/worker/message_queue.h

/*
 * Copyright (c) 2022 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 JS_CONCURRENT_MODULE_WORKER_MESSAGE_QUEUE_H
#define JS_CONCURRENT_MODULE_WORKER_MESSAGE_QUEUE_H

#include <mutex>
#include <queue>
#include "napi/native_api.h"
#include "napi/native_node_api.h"

namespace Commonlibrary::Concurrent::WorkerModule {
using MessageDataType = void*;
class MessageQueue final {
public:
    void EnQueue(MessageDataType data);
    bool DeQueue(MessageDataType *data);
    bool IsEmpty() const;
    void Clear(napi_env env);
    size_t GetSize() const
    {
        return queue_.size();
    }

private:
    std::mutex queueLock_;
    std::queue<MessageDataType> queue_;
};

class MarkedMessageQueue final {
public:
    void Push(uint32_t id, MessageDataType data);
    void Pop();
    std::pair<uint32_t, MessageDataType> Front();
    bool IsEmpty();
    void Clear(napi_env env);
    size_t GetSize()
    {
        std::unique_lock<std::mutex> lock(queueLock_);
        return queue_.size();
    }

private:
    std::mutex queueLock_;
    std::queue<std::pair<uint32_t, MessageDataType>> queue_;
};
}  // namespace Commonlibrary::Concurrent::WorkerModule
#endif // JS_CONCURRENT_MODULE_WORKER_MESSAGE_QUEUE_H