ALARM/DaemonProcess_ALARM/main.cpp

#include "mainwindow.h"

#include <QApplication>
#include <QFileDialog>
#include <QSettings>
#include <windows.h>
#include <QDebug>
#include <Tlhelp32.h>
#include <cstdlib>
#include <QDateTime>
#include <QTextStream>
#include <stdlib.h>
#include <QProcess>
#include <string.h>

using namespace std;


#define KEY_EXE_PATH "ALARM_PATH"

BOOL IsExistProcess(const char*  szProcessName)
{
    PROCESSENTRY32 processEntry32;
    HANDLE toolHelp32Snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
    if (((int)toolHelp32Snapshot) != -1)
    {
        processEntry32.dwSize = sizeof(processEntry32);
        if (Process32First(toolHelp32Snapshot, &processEntry32))
        {
            do
            {
                size_t i;
                int iLen = 2 * wcslen(processEntry32.szExeFile);
                char* chRtn = new char[iLen + 1];
                //转换成功返回为非负值
                wcstombs_s(&i,chRtn,iLen + 1, processEntry32.szExeFile, iLen + 1);
                if (strcmp(szProcessName, chRtn) == 0)
                {
                    return TRUE;
                }
            } while (Process32Next(toolHelp32Snapshot, &processEntry32));
        }
        CloseHandle(toolHelp32Snapshot);
    }
    //
    return FALSE;
}



int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    QSettings sets("sys.ini", QSettings::IniFormat);
    QString exeAbsPath = sets.value(KEY_EXE_PATH).toString();
    if ("" == exeAbsPath) {
        QString exepath = QFileDialog::getOpenFileName(0, "选择程序", "D:/zyj/QT/build-ProcessTest-Desktop_Qt_5_12_8_MSVC2017_32bit-Debug/debug", "Exe files (ProcessTest.exe)");
        qDebug() << exepath;
        if ("" != exepath) {
            sets.setValue(KEY_EXE_PATH, exepath);
        }
    } else {
       // 检测程序是否还在运行
        while (1) {
            QString loginfo;
            QFile file("restart_alarm_recored.txt");
            exeAbsPath = sets.value(KEY_EXE_PATH).toString();
            QString exeName = exeAbsPath.split('/').last();


            if(!IsExistProcess(exeName.toStdString().c_str())){
                loginfo += QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss");
                loginfo += "|";
                loginfo += exeName;
                loginfo += "|";
                loginfo += "restart\n";
                file.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Append);
                QTextStream out(&file);
                out << loginfo;
                file.close();

                //开启进程
                //system("start /b uugw04040003.exe");
                system(exeAbsPath.toStdString().c_str());


            }else{

            }

        }
       // 关闭状态重启
    }

    return a.exec();
}