/*
 * 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 TIMER_H
#define TIMER_H
#include <string>
#include <errno.h>
#include <sys/epoll.h>
#include <stdint.h>
#include <stdio.h>
#include <thread>
#include <unistd.h>
#include <cstdio>

#include "device_manager_log.h"


namespace OHOS {
namespace DistributedHardware {
typedef void (*TimeoutHandle)(void *data);

#define MAXEVENTS 255

enum DmTimerStatus : int32_t {
    DM_STATUS_INIT = 0,
    DM_STATUS_RUNNING = 1,
    DM_STATUS_BUSY = 2,
    DM_STATUS_CREATE_ERROR = 3,
    DM_STATUS_FINISH = 6,
};

class DmTimer {
public:
    DmTimer(std::string &name);
    ~DmTimer();
    DmTimerStatus Start(uint32_t timeOut, TimeoutHandle handle, void *data);
    void Stop(int32_t code);
    void WiteforTimeout();

private:
    int32_t CreateTimeFd();
    void Release();

private:
    DmTimerStatus mStatus_;
    uint32_t mTimeOutSec_;
    TimeoutHandle mHandle_;
    void *mHandleData_;
    int32_t mTimeFd_[2];
    struct epoll_event mEv_;
    struct epoll_event mEvents_[MAXEVENTS];
    int32_t mEpFd_;
    std::thread mThread_;
    std::string mTimerName_;
};
}
}
#endif