用 StartService 启动一个服务，但启动没windows自带的服务管理程序快

[q332010372]

用 StartService 启动一个服务，启动是启动了，只是要启动完需要很久，用windows自带服务管理程序（控制面板 -> 管理工具 -> 服务）看了一下，启动、停止、暂停、恢复全是灰色。但是如果用windows自带服务管理程序去启动，是非常快的

下面贴代码（实现 mysql 服务重启）：

bool TFormCreateCompetitPro::RestartMySQLService()
{
    ::SC_HANDLE schSCManager,
                schService;
    SERVICE_STATUS_PROCESS sspStatus;
    SERVICE_STATUS ssStatus;
    DWORD dwBytesNeeded;
    int waitCount = 10;

    //打开服务控制管理器，并获得句柄
    if ((schSCManager = OpenSCManager(NULL, SERVICES_ACTIVE_DATABASE, SC_MANAGER_CONNECT)) == NULL)
        return false;

    //打开服务
    if ((schService = OpenServiceA(schSCManager, "MySQL", SERVICE_ALL_ACCESS)) == NULL)
    {
        CloseServiceHandle(schSCManager);
        return false;
    }

    //检查服务状态
    if (!QueryServiceStatusEx(
            schService,                     // handle to service
            SC_STATUS_PROCESS_INFO,         // information level
            (LPBYTE) &sspStatus,             // address of structure
            sizeof(SERVICE_STATUS_PROCESS), // size of structure
            &dwBytesNeeded ) )              // size needed if buffer is too small
    {
        CloseServiceHandle(schService);
        CloseServiceHandle(schSCManager);
        return false;
    }

    //如果服务未启动，则启动服务
    if (sspStatus.dwCurrentState == SERVICE_STOPPED)
    {
        if (!StartService(
            schService,  // handle to service 
            0,           // number of arguments 
            NULL) )      // no arguments 
        {
            CloseServiceHandle(schService);
            CloseServiceHandle(schSCManager);
            return false;
        }

        // 等待启动完成
        do
        {
            if (waitCount <= 0)
                return false;

            ::Sleep(1500);
            
            //检查服务状态
            if (!QueryServiceStatusEx(
                    schService,                     // handle to service
                    SC_STATUS_PROCESS_INFO,         // information level
                    (LPBYTE) &sspStatus,             // address of structure
                    sizeof(SERVICE_STATUS_PROCESS), // size of structure
                    &dwBytesNeeded ) )              // size needed if buffer is too small
            {
                CloseServiceHandle(schService);
                CloseServiceHandle(schSCManager);
                return false;
            }

            waitCount--;
        }
        while (sspStatus.dwCurrentState != SERVICE_RUNNING);
    }
    //如果服务正在停止中，则等待完全停止，再启动服务
    else if (sspStatus.dwCurrentState == SERVICE_STOP_PENDING)
    {
        // 等待停止完成
        do
        {
            ::Sleep(1500);
            
            //检查服务状态
            if (!QueryServiceStatusEx(
                    schService,                     // handle to service
                    SC_STATUS_PROCESS_INFO,         // information level
                    (LPBYTE) &sspStatus,             // address of structure
                    sizeof(SERVICE_STATUS_PROCESS), // size of structure
                    &dwBytesNeeded ) )              // size needed if buffer is too small
            {
                CloseServiceHandle(schService);
                CloseServiceHandle(schSCManager);
                return false;
            }
        }
        while (sspStatus.dwCurrentState != SERVICE_STOPPED);

        //启动服务
        if (!StartService(
            schService,  // handle to service 
            0,           // number of arguments 
            NULL) )      // no arguments 
        {
            CloseServiceHandle(schService);
            CloseServiceHandle(schSCManager);
            return false;
        }

        // 等待启动完成
        do
        {
            if (waitCount <= 0)
                return false;
                
            ::Sleep(1500);
            
            //检查服务状态
            if (!QueryServiceStatusEx(
                    schService,                     // handle to service
                    SC_STATUS_PROCESS_INFO,         // information level
                    (LPBYTE) &sspStatus,             // address of structure
                    sizeof(SERVICE_STATUS_PROCESS), // size of structure
                    &dwBytesNeeded ) )              // size needed if buffer is too small
            {
                CloseServiceHandle(schService);
                CloseServiceHandle(schSCManager);
                return false;
            }
            waitCount--;
        }
        while (sspStatus.dwCurrentState != SERVICE_RUNNING);
    }
    // 如果正在运行中，则停止服务，再启动服务
    else if (sspStatus.dwCurrentState == SERVICE_RUNNING)
    {
        //停止服务
        if(!ControlService(schService, SERVICE_CONTROL_STOP, &ssStatus))
        {
            CloseServiceHandle(schService);
            CloseServiceHandle(schSCManager);
            return false;
        }

        // 等待停止完成
        do
        {
            ::Sleep(1500);
            
            //检查服务状态
            if (!QueryServiceStatusEx(
                    schService,                     // handle to service
                    SC_STATUS_PROCESS_INFO,         // information level
                    (LPBYTE) &sspStatus,             // address of structure
                    sizeof(SERVICE_STATUS_PROCESS), // size of structure
                    &dwBytesNeeded ) )              // size needed if buffer is too small
            {
                CloseServiceHandle(schService);
                CloseServiceHandle(schSCManager);
                return false;
            }
        }
        while (sspStatus.dwCurrentState != SERVICE_STOPPED);

        //启动服务
        if (!StartService(
            schService,  // handle to service 
            0,           // number of arguments 
            NULL) )      // no arguments 
        {
            CloseServiceHandle(schService);
            CloseServiceHandle(schSCManager);
            return false;
        }

        // 等待启动完成
        do
        {
            if (waitCount <= 0)
                return false;

            ::Sleep(1500);
            
            //检查服务状态
            if (!QueryServiceStatusEx(
                    schService,                     // handle to service
                    SC_STATUS_PROCESS_INFO,         // information level
                    (LPBYTE) &sspStatus,             // address of structure
                    sizeof(SERVICE_STATUS_PROCESS), // size of structure
                    &dwBytesNeeded ) )              // size needed if buffer is too small
            {
                CloseServiceHandle(schService);
                CloseServiceHandle(schSCManager);
                return false;
            }

            waitCount--;
        }
        while (sspStatus.dwCurrentState != SERVICE_RUNNING);
    }

    CloseServiceHandle(schService);
    CloseServiceHandle(schSCManager);
    return true;
}

[q332010372]

没人知道吗？