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

#include <process.h>

TCHAR szServiceName[] = _T("MyTestService");
DWORD dwThreadID;
HANDLE hEvent = INVALID_HANDLE_VALUE;
SERVICE_STATUS status;
SERVICE_STATUS_HANDLE hServiceStatus;

void Init();
BOOL IsServiceInstalled();
BOOL InstallService();
BOOL UninstallService();
BOOL ServiceCtrlStart();
BOOL ServiceCtrlStop();
void WINAPI ServiceMain();
void WINAPI ServiceStrl(DWORD dwOpcode);
void LogEvent(LPCTSTR pszFormat, ...);

//Usuage
// Install service：
//TestService.exe /install
// Uninstall service：
//TestService.exe /uninstall
// Start service：
//TestService.exe /start
// Stop service：
//TestService.exe /stop

int main( int argc, char* argv[] )
{
    Init();

    dwThreadID = ::GetCurrentThreadId();

    SERVICE_TABLE_ENTRY st[] =
    {
        { szServiceName, (LPSERVICE_MAIN_FUNCTION)ServiceMain },
        { NULL, NULL }
    };

    LPSTR lpCmdLine = argv[1];

    if ( argc == 2 )
    {
        BOOL bRet;

        if (stricmp(lpCmdLine, "/install") == 0)
        {
            bRet = InstallService();
            if ( bRet == TRUE )
            {
                printf( "Install service %s success", szServiceName );
            }else
            {
                printf( "Install service %s failed", szServiceName );
            }
        }
        else if (stricmp(lpCmdLine, "/uninstall") == 0)
        {
            bRet = UninstallService();
            if ( bRet == TRUE )
            {
                printf( "Uninstall service %s success", szServiceName );
            }
            else
            {
                printf( "Uninstall service %s failed", szServiceName );
            }
        }
        else if (stricmp(lpCmdLine, "/start") == 0)
        {
            bRet = ServiceCtrlStart();
            if ( bRet == TRUE )
            {
                printf( "Start service %s success", szServiceName );
            }else
            {
                printf( "Start service %s failed", szServiceName );
            }
        }
        else if (stricmp(lpCmdLine, "/stop") == 0)
        {
            bRet = ServiceCtrlStop();
            if ( bRet == TRUE )
            {
                printf( "Stop service %s success", szServiceName );
            }
            else
            {
                printf( "Stop service %s failed", szServiceName );
            }
        }
        else
        {
            if (!::StartServiceCtrlDispatcher(st))
            {
                LogEvent(_T("Register Service Main Function Error!"));
            }
        }
    }
    else
    {
        if (!::StartServiceCtrlDispatcher(st))
        {
            LogEvent(_T("Register Service Main Function Error!"));
        }
    }
    return 0;
}

//初始化相关结构
void Init()
{
    hServiceStatus = NULL;
    status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
    status.dwCurrentState = SERVICE_STOPPED;
    status.dwControlsAccepted = SERVICE_ACCEPT_STOP;
    status.dwWin32ExitCode = 0;
    status.dwServiceSpecificExitCode = 0;
    status.dwCheckPoint = 0;
    status.dwWaitHint = 0;
}

void SubThread(void *_pParam)
{
    LogEvent(_T("SubThread - 1"));
    Sleep(1000 * 10);
    LogEvent(_T("SubThread - 2"));
    _endthread();
}

//服务主线程函数，既用户选择开启服务时调用的函数
void WINAPI ServiceMain()
{
    // Register the control request handler
    status.dwCurrentState = SERVICE_START_PENDING;
    status.dwControlsAccepted = SERVICE_ACCEPT_STOP;

    LogEvent(_T("ServiceMain"));

    //注册服务控制
    hServiceStatus = RegisterServiceCtrlHandler(szServiceName, ServiceStrl);
    if (hServiceStatus == NULL)
    {
        LogEvent(_T("Handler not installed"));
        return;
    }
    SetServiceStatus(hServiceStatus, &status);

    //如下代码可以为启动服务前的准备工作
    hEvent = ::CreateEvent( NULL, TRUE, FALSE, NULL );
    if ( hEvent == NULL )
    {
        status.dwCurrentState = SERVICE_STOPPED;
        SetServiceStatus(hServiceStatus, &status);
        LogEvent(_T("Failure to start service"));
        return;
    }
    //

    //更改服务状态为启动
    status.dwWin32ExitCode = S_OK;
    status.dwCheckPoint = 0;
    status.dwWaitHint = 0;
    status.dwCurrentState = SERVICE_RUNNING;
    SetServiceStatus(hServiceStatus, &status);

    {
        _beginthread( SubThread, 0, NULL );
    }

    //等待用户选择停止服务，
    //当然你也可以把你的服务代码用线程来执行，
    //此时这里只需等待线程结束既可。
    while ( WaitForSingleObject( hEvent, 1000 ) != WAIT_OBJECT_0 )
    {
        //模拟服务的运行，应用时将主要任务放于此即可
        LogEvent(_T("Service runing..."));
    }
    //

    //停止服务
    status.dwCurrentState = SERVICE_STOPPED;
    SetServiceStatus(hServiceStatus, &status);
    LogEvent(_T("Service stopped"));
}

//服务控制函数
void WINAPI ServiceStrl(DWORD dwOpcode)
{
    switch (dwOpcode)
    {
    case SERVICE_CONTROL_STOP:
        status.dwCurrentState = SERVICE_STOP_PENDING;
        SetServiceStatus(hServiceStatus, &status);
        //告诉服务线程停止工作
        ::SetEvent( hEvent );
        LogEvent(_T("want to stopped Service"));
        break;
    case SERVICE_CONTROL_PAUSE:
        break;
    case SERVICE_CONTROL_CONTINUE:
        break;
    case SERVICE_CONTROL_INTERROGATE:
        break;
    case SERVICE_CONTROL_SHUTDOWN:
        break;
    default:
        LogEvent(_T("Bad service request"));
    }
}

//判断服务是否已安装
BOOL IsServiceInstalled()
{
    BOOL bResult = FALSE;

    //打开服务控制管理器
    SC_HANDLE hSCM = ::OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);

    if (hSCM != NULL)
    {
        //打开服务
        SC_HANDLE hService = ::OpenService(hSCM, szServiceName, SERVICE_QUERY_CONFIG);
        if (hService != NULL)
        {
            bResult = TRUE;
            ::CloseServiceHandle(hService);
        }
        ::CloseServiceHandle(hSCM);
    }
    return bResult;
}

//安装服务
BOOL InstallService()
{
    if (IsServiceInstalled())
    {
        return TRUE;
    }

    //打开服务控制管理器
    SC_HANDLE hSCM = ::OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
    if (hSCM == NULL)
    {
        return FALSE;
    }

    // Get the executable file path
    TCHAR szFilePath[MAX_PATH];
    ::GetModuleFileName(NULL, szFilePath, MAX_PATH);

    //创建服务
    SC_HANDLE hService = ::CreateService(
        hSCM,
        szServiceName,
        szServiceName,
        SERVICE_ALL_ACCESS,
        SERVICE_WIN32_OWN_PROCESS,
        SERVICE_AUTO_START, //如果为SERVICE_DEMAND_START则表示此服务需手工启动
        SERVICE_ERROR_NORMAL,
        szFilePath,
        NULL,
        NULL,
        _T(""),
        NULL,
        NULL);

    if (hService == NULL)
    {
        ::CloseServiceHandle(hSCM);
        return FALSE;
    }

    ::CloseServiceHandle(hService);
    ::CloseServiceHandle(hSCM);
    return TRUE;
}

//删除服务
BOOL UninstallService()
{
    if (!IsServiceInstalled())
    {
        return TRUE;
    }
    SC_HANDLE hSCM = ::OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
    if (hSCM == NULL)
    {
        return FALSE;
    }

    SC_HANDLE hService = ::OpenService(hSCM, szServiceName, SERVICE_STOP | DELETE);
    if (hService == NULL)
    {
        ::CloseServiceHandle(hSCM);
        return FALSE;
    }
    SERVICE_STATUS status;
    ::ControlService(hService, SERVICE_CONTROL_STOP, &status);

    //删除服务
    BOOL bDelete = ::DeleteService(hService);
    ::CloseServiceHandle(hService);
    ::CloseServiceHandle(hSCM);

    if (bDelete)
    {
        return TRUE;
    }

    LogEvent(_T("Service could not be deleted"));
    return FALSE;
}

//开启服务
BOOL ServiceCtrlStart()
{
    BOOL bRet;
    SC_HANDLE hSCM;
    SC_HANDLE hService;

    hSCM=OpenSCManager(NULL,NULL,SC_MANAGER_CONNECT);
    if (hSCM!=NULL)
    {
        hService=OpenService( hSCM, szServiceName, SERVICE_START);
        if (hService!=NULL)
        {
            //开始Service
            bRet = StartService(hService,0,NULL);
            CloseServiceHandle(hService);
        }else
        {
            bRet = FALSE;
        }
        CloseServiceHandle(hSCM);
    }
    else
    {
        bRet = FALSE;
    }
    return bRet;
}

//停止服务
BOOL ServiceCtrlStop()
{
    BOOL bRet;
    SC_HANDLE hSCM;
    SC_HANDLE hService;
    SERVICE_STATUS ServiceStatus;

    hSCM=OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS );
    if (hSCM!=NULL)
    {
        hService=OpenService( hSCM, szServiceName, SERVICE_STOP|SERVICE_QUERY_STATUS );
        if (hService!=NULL)
        {
            QueryServiceStatus( hService, &ServiceStatus );
            if (ServiceStatus.dwCurrentState == SERVICE_RUNNING)
            {
                bRet = ControlService( hService, SERVICE_CONTROL_STOP, &ServiceStatus );
            }
            else
            {
                bRet = FALSE;
            }
            CloseServiceHandle( hService );
        }
        else
        {
            bRet = FALSE;
        }
        CloseServiceHandle( hSCM );
    }
    else
    {
        bRet = FALSE;
    }
    return bRet;
}

//记录日记
void LogEvent(LPCTSTR pFormat, ...)
{
    TCHAR    chMsg[256];
    HANDLE hEventSource;
    LPTSTR lpszStrings[1];
    va_list pArg;

    va_start(pArg, pFormat);
    _vstprintf(chMsg, pFormat, pArg);
    va_end(pArg);

    lpszStrings[0] = chMsg;

    hEventSource = RegisterEventSource(NULL, szServiceName);
    if (hEventSource != NULL)
    {
        ReportEvent(hEventSource, EVENTLOG_INFORMATION_TYPE, 0, 0, NULL, 1, 0, (LPCTSTR*) &lpszStrings[0], NULL);
        DeregisterEventSource(hEventSource);
    }
}