Windows守护程序的实现(软件看门狗)-基于QT开发

      #include <QDateTime>
#include <QFileInfo>
#include <QDir>
#include <QDebug>
#include "commonlib.h"

commonLib*gloCommonLib;
static const int mon_lengths[2][MONS_PER_YEAR] = {
    {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
    {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
};
static const int year_lengths[2] = {
    DAYS_PER_NYEAR, DAYS_PER_LYEAR
};
QString LogContext[] = { _T("其他"),_T("登录信息"),_T("暂时无用"),_T("第一次连接"),_T("非法连接"),
                          _T("要求登录"),_T("修改密码"),_T("用户离线"),_T("公共信息"),_T("数据查询") };

void commonLib::sleep(unsigned int msec)
{
    ///* Solution A: OK
    //QThread::sleep();//sleep不会释放对象锁，其他线程无法访问对象，因此会阻塞线程
    QThread::msleep(msec);
    //QThread::usleep();
    //QThread::wait();//Wait会释放对象锁
    //*/

    /*  //Solution B: OK
    QEventLoop loop;//定义一个新的事件循环
    QTimer::singleShot(msec, &loop, SLOT(quit()));//创建单次定时器，槽函数为事件循环的退出函数
    loop.exec();//事件循环开始执行，程序会卡在这里，直到定时时间到，本循环被退出
    //*/

    /* //Solution C:cpu use high
    QTime dieTime = QTime::currentTime().addMSecs(msec);
    while( QTime::currentTime() < dieTime )
        QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
    //*/

    /*  //Solution D: cpu use high high ,low Solution
    QElapsedTimer t;
    t.start();
    while(t.elapsed()<msec)
        ;
    //*/
}

long commonLib::gmmktime(const struct Sys_Time *tm)//计算从FROM_YEAR年至现在的秒数
{
    int yr;
    int mn;
    long secs;

    if (tm->second > 59 ||tm->minute > 59 ||tm->hour > 23 ||tm->day > 31 ||tm->month > 12 ||tm->year < FROM_YEAR)
    {
        printf("time date's datas format error.\n");
        return (long)-1;
    }

    secs = tm->second;
    secs += tm->minute * SECS_PER_MIN;
    secs += tm->hour * SECS_PER_HOUR;
    secs += (tm->day-1) * SECS_PER_DAY;

    for(mn = 0; mn < tm->month-1; mn++)
        secs += mon_lengths[isleap(tm->year)][mn] * SECS_PER_DAY;

    for(yr=FROM_YEAR; yr < tm->year; yr++)
        secs += year_lengths[isleap(yr)]*SECS_PER_DAY;

    return secs;
}

int commonLib::mktimetoformattime2(long mktimesec,struct Sys_Time *rettm)//以FROM_YEAR为起点，将秒转换为标准struct Sys_Time时间
{
    int totalday=mktimesec/SECS_PER_DAY;
    int totalyear=totalday/DAYS_PER_NYEAR;
    int yr=FROM_YEAR+totalyear;
    struct Sys_Time tmp_tm={yr,1,1,0,0,0,0};
    long leftsec=mktimesec-gmmktime(&tmp_tm);

    if(leftsec<0)
    {
        tmp_tm.year-=1;
        yr-=1;
        leftsec=mktimesec-gmmktime(&tmp_tm);
    }
    //printf("mktimetoformattime yr:%d leftsec:%ld\n",yr,leftsec);

    if(leftsec==0)
    {
        memcpy(rettm,&tmp_tm,sizeof(tmp_tm));
        return 1;
    }
    else
    {
        rettm->year=yr;
        int leftday=leftsec/SECS_PER_DAY;
        int lefthour=leftsec%SECS_PER_DAY/SECS_PER_HOUR;
        int leftmin=leftsec%SECS_PER_DAY%SECS_PER_HOUR/SECS_PER_MIN;
        int leftsecend=leftsec%SECS_PER_DAY%SECS_PER_HOUR%SECS_PER_MIN;

        int i=0;
        int tmptotalday=0;
        int yorn=isleap(yr);//闰年标记
        //printf("yorn:%d\n",yorn);
        for(i=0;i<12;i++)
        {
            tmptotalday+=mon_lengths[yorn][i];
            if(tmptotalday>leftday)
                break;
        }
        rettm->month=i+1;

        tmptotalday=0;
        for(i=0;i<rettm->month-1;i++)
        {
            tmptotalday+=mon_lengths[yorn][i];
        }
        leftday=leftday-tmptotalday+1;

        rettm->day=leftday;
        rettm->hour=lefthour;
        rettm->minute=leftmin;
        rettm->second=leftsecend;
        return 1;
    }
    return -1;
}
struct Sys_Time commonLib::secToSysTime(long totalSec)//以FROM_YEAR为起点，将秒转换为标准struct Sys_Time时间
{
    struct Sys_Time rettm;
    int totalday=totalSec/SECS_PER_DAY;
    int totalyear=totalday/DAYS_PER_NYEAR;
    int yr=FROM_YEAR+totalyear;
    struct Sys_Time tmp_tm={yr,1,1,0,0,0,0};
    long leftsec=totalSec-gmmktime(&tmp_tm);

    if(leftsec<0)
    {
        tmp_tm.year-=1;
        yr-=1;
        leftsec=totalSec-gmmktime(&tmp_tm);
    }
    //printf("mktimetoformattime yr:%d leftsec:%ld\n",yr,leftsec);

    if(leftsec==0)
    {
        memcpy(&rettm,&tmp_tm,sizeof(tmp_tm));
        return rettm;
    }
    else
    {
        rettm.year=yr;
        int leftday=leftsec/SECS_PER_DAY;
        int lefthour=leftsec%SECS_PER_DAY/SECS_PER_HOUR;
        int leftmin=leftsec%SECS_PER_DAY%SECS_PER_HOUR/SECS_PER_MIN;
        int leftsecend=leftsec%SECS_PER_DAY%SECS_PER_HOUR%SECS_PER_MIN;

        int i=0;
        int tmptotalday=0;
        int yorn=isleap(yr);//闰年标记
        //printf("yorn:%d\n",yorn);
        for(i=0;i<12;i++)
        {
            tmptotalday+=mon_lengths[yorn][i];
            if(tmptotalday>leftday)
                break;
        }
        rettm.month=i+1;

        tmptotalday=0;
        for(i=0;i<rettm.month-1;i++)
        {
            tmptotalday+=mon_lengths[yorn][i];
        }
        leftday=leftday-tmptotalday+1;

        rettm.day=leftday;
        rettm.hour=lefthour;
        rettm.minute=leftmin;
        rettm.second=leftsecend;
        return rettm;
    }
    //return -1;
}

struct Sys_Time commonLib::Get_Sys_Time(void)
{
    struct Sys_Time time_save;
    QDateTime tm = QDateTime::currentDateTime();
    QString yearStr=tm.toString("yyyy");
    QString monthStr=tm.toString("MM");
    QString dayStr=tm.toString("dd");
    QString hourStr=tm.toString("hh");
    QString minStr=tm.toString("mm");
    QString secStr=tm.toString("ss");

    time_save.year = yearStr.toInt();
    time_save.month = (char)monthStr.toInt();
    time_save.day = dayStr.toInt();
    time_save.hour = hourStr.toInt();
    time_save.minute = minStr.toInt();
    time_save.second = secStr.toInt();
    time_save.sys_ticks = 0;
    return time_save;
}

struct Sys_Time commonLib::get_sys_time(void)
{
    QDateTime tm = QDateTime::currentDateTime();
    QString yearStr=tm.toString("yyyy");
    QString monthStr=tm.toString("MM");
    QString dayStr=tm.toString("dd");
    QString hourStr=tm.toString("hh");
    QString minStr=tm.toString("mm");
    QString secStr=tm.toString("ss");
    struct Sys_Time time_save;
    time_save.year = yearStr.toInt();
    time_save.month = (char)monthStr.toInt();
    time_save.day = dayStr.toInt();
    time_save.hour = hourStr.toInt();
    time_save.minute = minStr.toInt();
    time_save.second = secStr.toInt();
    time_save.sys_ticks = 0;
    return time_save;
}

QString commonLib::get_now_sys_time(void)
{
    QString qstrNowTime;
    struct Sys_Time nowTime=get_sys_time();;
    //Get_Sys_Time(&nowTime);

    char strNowTime[64];
    sprintf(strNowTime,"(%02d/%02d %02d:%02d:%02d)",nowTime.month,nowTime.day,nowTime.hour,nowTime.minute,nowTime.second);
    qstrNowTime=QString::fromLatin1(strNowTime);
    return qstrNowTime;
}

QString commonLib::get_time_by_date(struct Sys_Time*nowTime)
{
    QString qstrNowTime;

    char strNowTime[64];
    sprintf(strNowTime,"(%04d/%02d/%02d %02d:%02d:%02d)",nowTime->year,nowTime->month,nowTime->day,nowTime->hour,nowTime->minute,nowTime->second);
    qstrNowTime=QString::fromLatin1(strNowTime);
    return qstrNowTime;
}

QString commonLib::get_now_sys_time_forDb(void)//用于msSql用的时间格式
{
    QString qstrNowTime;
    struct Sys_Time nowTime=get_sys_time();;
    char strNowTime[64];

    //nowtimes.Format(_T("%04d-%02d-%02d %02d:%02d:%02d"),tm.GetYear(), tm.GetMonth(), tm.GetDay(), tm.GetHour(), tm.GetMinute(), tm.GetSecond());

    sprintf(strNowTime,"%04d-%02d-%02d %02d:%02d