keeper.cpp

#include <tchar.h>
#include <Windows.h>
#include <tlhelp32.h>

#pragma comment(linker, "/subsystem:\"windows\" /entry:\"mainCRTStartup\"")
bool findProcess(const TCHAR* processName)
{
    PROCESSENTRY32 pe32;
    pe32.dwSize = sizeof(PROCESSENTRY32);
    HANDLE hProcess = INVALID_HANDLE_VALUE;
    HANDLE hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
    while (Process32Next(hProcessSnap, &pe32)) {
        if (!_tcscmp(processName, pe32.szExeFile)) {
            CloseHandle(hProcessSnap);
            return true;
        }
    }
    CloseHandle(hProcessSnap);
    return false;
}

int main(int argc, char* argv[])
{
    TCHAR appPath[MAX_PATH];
    GetModuleFileName(NULL, appPath, MAX_PATH);
    _tcscpy(_tcsrchr(appPath, TEXT('\\')), TEXT("\\mcsca_backend.exe"));

    for (;;) {
        if (!findProcess(TEXT("mcsca_backend.exe"))) {
            // 重启程序
            STARTUPINFO si;
            PROCESS_INFORMATION pi;
            ZeroMemory(&si, sizeof(si));
            si.cb = sizeof(si);
            ZeroMemory(&pi, sizeof(pi));
            if (CreateProcess(NULL, appPath, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi))
                WaitForSingleObject(pi.hProcess, -1);
        }
    }
    return 0;
}