17c804472Sopenharmony_ci/*
27c804472Sopenharmony_ci * Copyright (c) 2023 Huawei Device Co., Ltd.
37c804472Sopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License");
47c804472Sopenharmony_ci * you may not use this file except in compliance with the License.
57c804472Sopenharmony_ci * You may obtain a copy of the License at
67c804472Sopenharmony_ci *
77c804472Sopenharmony_ci *     http://www.apache.org/licenses/LICENSE-2.0
87c804472Sopenharmony_ci *
97c804472Sopenharmony_ci * Unless required by applicable law or agreed to in writing, software
107c804472Sopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
117c804472Sopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
127c804472Sopenharmony_ci * See the License for the specific language governing permissions and
137c804472Sopenharmony_ci * limitations under the License.
147c804472Sopenharmony_ci */
157c804472Sopenharmony_ci
167c804472Sopenharmony_ci#ifndef EVENT_QUEUE_H
177c804472Sopenharmony_ci#define EVENT_QUEUE_H
187c804472Sopenharmony_ci
197c804472Sopenharmony_ci#include <iostream>
207c804472Sopenharmony_ci#include <queue>
217c804472Sopenharmony_ci#include <chrono>
227c804472Sopenharmony_ci#include <functional>
237c804472Sopenharmony_ci
247c804472Sopenharmony_cinamespace OHOS::AppExecFwk {
257c804472Sopenharmony_ciusing Callback = std::function<void()>;
267c804472Sopenharmony_ci
277c804472Sopenharmony_ciclass EventTask {
287c804472Sopenharmony_cipublic:
297c804472Sopenharmony_ci    EventTask(size_t order, Callback task, std::chrono::steady_clock::time_point targetTime);
307c804472Sopenharmony_ci    EventTask(const EventTask& other);
317c804472Sopenharmony_ci    EventTask& operator=(const EventTask& other);
327c804472Sopenharmony_ci    ~EventTask();
337c804472Sopenharmony_ci    const Callback& GetTask() const;
347c804472Sopenharmony_ci    std::chrono::steady_clock::time_point GetTargetTime() const;
357c804472Sopenharmony_ci    bool operator>(const EventTask& other) const;
367c804472Sopenharmony_ci
377c804472Sopenharmony_ciprivate:
387c804472Sopenharmony_ci    size_t order;
397c804472Sopenharmony_ci    Callback task;
407c804472Sopenharmony_ci    std::chrono::steady_clock::time_point targetTime;
417c804472Sopenharmony_ci};
427c804472Sopenharmony_ci
437c804472Sopenharmony_ciusing EventQueue = std::priority_queue<EventTask, std::deque<EventTask>, std::greater<EventTask>>;
447c804472Sopenharmony_ci}
457c804472Sopenharmony_ci#endif // EVENT_QUEUE_H