mirror of
https://github.com/openharmony/device_manager.git
synced 2026-07-21 06:05:22 -04:00
renguang1116
106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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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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#ifndef DM_TIMER_H
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#define DM_TIMER_H
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#include <atomic>
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#include <chrono>
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#include <condition_variable>
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#include <functional>
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#include <map>
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#include <mutex>
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#include <queue>
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#include <vector>
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namespace OHOS {
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namespace DistributedHardware {
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constexpr int32_t DELAY_TICK_MILLSECONDS = 1000;
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typedef std::chrono::steady_clock::time_point timerPoint;
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typedef std::chrono::steady_clock steadyClock;
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typedef std::chrono::duration<int64_t, std::ratio<1, 1000>> timerDuration;
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using TimerCallback = std::function<void (std::string name)>;
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const int32_t MILLISECOND_TO_SECOND = 1000;
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const int32_t MIN_TIME_OUT = 0;
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const int32_t MAX_TIME_OUT = 300;
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class Timer {
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public:
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Timer(std::string name, int32_t time, TimerCallback callback);
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~Timer() {};
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public:
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std::string timerName_;
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timerPoint expire_;
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bool state_;
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int32_t timeOut_;
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TimerCallback callback_;
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};
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struct TimerCmpare {
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public:
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bool operator () (std::shared_ptr<Timer> frontTimer, std::shared_ptr<Timer> timer)
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{
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int32_t frontTimerOut = frontTimer->timeOut_ - (std::chrono::duration_cast<timerDuration>(steadyClock::now()
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- frontTimer->expire_).count() / MILLISECOND_TO_SECOND);
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int32_t timerOut = timer->timeOut_ - (std::chrono::duration_cast<timerDuration>(steadyClock::now()
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- timer->expire_).count() / MILLISECOND_TO_SECOND);
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return frontTimerOut > timerOut;
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}
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};
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class DmTimer {
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public:
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DmTimer();
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~DmTimer();
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/**
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* @tc.name: DmTimer::StartTimer
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* @tc.desc: start timer running
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* @tc.type: FUNC
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*/
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int32_t StartTimer(std::string name, int32_t time, TimerCallback callback);
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/**
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* @tc.name: DmTimer::DeleteTimer
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* @tc.desc: delete timer
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* @tc.type: FUNC
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*/
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int32_t DeleteTimer(std::string timerName);
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/**
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* @tc.name: DmTimer::DeleteAll
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* @tc.desc: delete all timer
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* @tc.type: FUNC
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*/
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int32_t DeleteAll();
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/**
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* @tc.name: DmTimer::TimerRunning
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* @tc.desc: timer running
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* @tc.type: FUNC
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*/
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int32_t TimerRunning();
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private:
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mutable std::mutex timerMutex_;
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mutable std::mutex timerStateMutex_;
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std::priority_queue<std::shared_ptr<Timer>, std::vector<std::shared_ptr<Timer>>, TimerCmpare> timerQueue_;
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std::map<std::string, std::shared_ptr<Timer>> timerMap_;
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std::atomic<bool> timerState_ {false};
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std::condition_variable runTimerCondition_;
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std::condition_variable stopTimerCondition_;
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};
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}
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}
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#endif |