如何调试 Windows 服务

发布于 2024-10-18 08:56:11 字数 1256 浏览 2 评论 0原文

我已经使用代码项目文章创建了一个Windows服务。我可以使用 -i 和 -d 开关安装服务和删除服务。

我可以在 services.msc 中看到该服务，但是当我启动该服务时，它什么也不做。下面我将提供服务主要代码：

void WINAPI ServiceMain(DWORD argc, LPTSTR *argv)
{
  DWORD status;
  DWORD specificError;
  m_ServiceStatus.dwServiceType = SERVICE_WIN32;
  m_ServiceStatus.dwCurrentState = SERVICE_START_PENDING;
  m_ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP;
  m_ServiceStatus.dwWin32ExitCode = 0;
  m_ServiceStatus.dwServiceSpecificExitCode = 0;
  m_ServiceStatus.dwCheckPoint = 0;
  m_ServiceStatus.dwWaitHint = 0;

  m_ServiceStatusHandle = RegisterServiceCtrlHandler("Service1", 
                                            ServiceCtrlHandler); 
  if (m_ServiceStatusHandle == (SERVICE_STATUS_HANDLE)0)
  {
    return;
  }
  m_ServiceStatus.dwCurrentState = SERVICE_RUNNING;
  m_ServiceStatus.dwCheckPoint = 0;
  m_ServiceStatus.dwWaitHint = 0;
  if (!SetServiceStatus (m_ServiceStatusHandle, &m_ServiceStatus))
  {
  }

  bRunning=true;
  while(bRunning)
  {

    Sleep(150000);
    ShellExecute(NULL, "open", "C:\\", NULL, NULL, SW_SHOWNORMAL);

  }
  return;
}

但是当我启动该服务时，它既不休眠也不启动资源管理器。我错过了什么吗？

原文

I have create a windows service using the Code Project Article. I am able to install the service and delete the service using -i and -d switch.

I am able to see the service in services.msc but when I start the service it does nothing.Below I will proide the service main code:

void WINAPI ServiceMain(DWORD argc, LPTSTR *argv)
{
  DWORD status;
  DWORD specificError;
  m_ServiceStatus.dwServiceType = SERVICE_WIN32;
  m_ServiceStatus.dwCurrentState = SERVICE_START_PENDING;
  m_ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP;
  m_ServiceStatus.dwWin32ExitCode = 0;
  m_ServiceStatus.dwServiceSpecificExitCode = 0;
  m_ServiceStatus.dwCheckPoint = 0;
  m_ServiceStatus.dwWaitHint = 0;

  m_ServiceStatusHandle = RegisterServiceCtrlHandler("Service1", 
                                            ServiceCtrlHandler); 
  if (m_ServiceStatusHandle == (SERVICE_STATUS_HANDLE)0)
  {
    return;
  }
  m_ServiceStatus.dwCurrentState = SERVICE_RUNNING;
  m_ServiceStatus.dwCheckPoint = 0;
  m_ServiceStatus.dwWaitHint = 0;
  if (!SetServiceStatus (m_ServiceStatusHandle, &m_ServiceStatus))
  {
  }

  bRunning=true;
  while(bRunning)
  {

    Sleep(150000);
    ShellExecute(NULL, "open", "C:\\", NULL, NULL, SW_SHOWNORMAL);

  }
  return;
}

But while I start the service neither it sleeps or starts the explorer. Am I missing anything?

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指尖上的星空 2024-10-25 08:56:11

Ferruccio 关于将调试器附加到正在运行的服务的建议是一个很好的建议，就像包含一个作为控制台应用程序运行的选项的建议一样（尽管这对您的情况没有帮助）。

要调试启动代码，可以调用 DebugBreak() 位于启动代码的开头。这将启动调试器并在此时暂停服务的执行。进入调试器后，设置所需的断点，然后继续执行。

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埋情葬爱 2024-10-25 08:56:11

您始终可以在调试模式下构建服务并将调试器附加到正在运行的服务。这种技术的唯一问题是您无法调试服务启动代码。出于这个原因，并且为了调试服务而不断注册/取消注册/启动/停止服务可能会很痛苦，我总是编写服务，以便它们也可以作为命令行程序运行。

如果 StartServiceCtrlDispatcher() 失败并且 GetLastError() 返回 ERROR_FAILED_SERVICE_CONTROLLER_CONNECT，您的服务可以判断它是从命令行启动的。

当然，当您从命令行运行服务时，它可以访问桌面，而服务通常无法访问桌面，并且它在当前登录用户的上下文中运行，而不是在本地系统或指定帐户的上下文中运行，因此您需要以这种方式调试服务时请考虑这些差异。

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请别遗忘我 2024-10-25 08:56:11

使用下面的代码来调试您的服务，将其放入服务启动函数中，它会给您一个弹出窗口并保持执行，直到您说“确定”或直到 60 秒，将断点放在下一个执行语句中，您可以继续调试 -

包括这个标题-

#include <Wtsapi32.h>
#pragma comment( lib, "Wtsapi32.lib" )

代码-

wchar_t title[] = L"service in startup - 60 seconds to take action";
wchar_t message[] = L"To debug, first attach to the process with Visual "
                    L"Studio, then click OK. If you don't want to debug, "
                    L"just click OK without attaching";
DWORD consoleSession = ::WTSGetActiveConsoleSessionId();
DWORD response;
BOOL ret = ::WTSSendMessage( WTS_CURRENT_SERVER_HANDLE,
                            consoleSession,
                            title, sizeof(title),
                            message, sizeof(message),
                            MB_OK,
                            60,
                            &response,
                            TRUE );

Use below code to debug your service, put this in service startup function, it will give you a popup and hold the execution until you say OK or until 60 seconds, put the breakpoint in the next execution statement and you can proceed with debugging -

Include this header-

#include <Wtsapi32.h>
#pragma comment( lib, "Wtsapi32.lib" )

Code-

wchar_t title[] = L"service in startup - 60 seconds to take action";
wchar_t message[] = L"To debug, first attach to the process with Visual "
                    L"Studio, then click OK. If you don't want to debug, "
                    L"just click OK without attaching";
DWORD consoleSession = ::WTSGetActiveConsoleSessionId();
DWORD response;
BOOL ret = ::WTSSendMessage( WTS_CURRENT_SERVER_HANDLE,
                            consoleSession,
                            title, sizeof(title),
                            message, sizeof(message),
                            MB_OK,
                            60,
                            &response,
                            TRUE );

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半透明的墙 2024-10-25 08:56:11

我建议编写一个小记录器类，将信息写入文本文件。然后你可以输入类似的内容：

if (m_ServiceStatusHandle == (SERVICE_STATUS_HANDLE)0)
{
    Logger.LogError("Service handler is 0.");
    return;
}    

while(running) {

   Logger.LogInfo("I am running.");

   //...
}

I would recommend to write a little Logger-Class, that writes information to a text-file. Then you can e.g. put something like:

if (m_ServiceStatusHandle == (SERVICE_STATUS_HANDLE)0)
{
    Logger.LogError("Service handler is 0.");
    return;
}    

while(running) {

   Logger.LogInfo("I am running.");

   //...
}

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