ApplicationVerifier 未检测到句柄泄漏，我该怎么办？

发布于 2024-07-08 18:45:58 字数 476 浏览 9 评论 0原文

我确实正确选择了可执行文件，因为我可以让它响应我所做的某些事情。但我无法让 ApplicationVerifier 正确检测句柄泄漏。

这是一个示例：

int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
    HANDLE hFile = CreateFile(_T("C:\\test.txt"), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL);
    return 0;
}

ApplicationVerifier 不会检测到这一点。

我该怎么做才能检测到上述问题？

原文

I did select the executable correctly, because I can get it to respond to certain things I do. But I can't get ApplicationVerifier to properly detect a handle leak.

Here is an example:

int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
    HANDLE hFile = CreateFile(_T("C:\\test.txt"), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL);
    return 0;
}

ApplicationVerifier doesn't detect this.

What can I do to detect the above problem?

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若水般的淡然安静女子 2024-07-15 18:45:58

您的代码是否仅通过 CreateFile 创建句柄？如果是这样，您可以将这些方法宏化为执行自定义实现的泄漏检测的版本。这是很多工作，但它会完成工作。

#if DEBUG
#define CreateFile DebugCreateFile
#define CloseHandle DebugCloseHandle
#endif
// in another cpp file
#undef CreateFile
#undef CloseHandle
HANDLE DebugCreateFile(...) {
  HANDLE real = ::CreateFile(...);
  TrackHandle(real);
  return real;
}
void DebugCloseHandle(HANDLE target) {
  if (IsTracked(target)) { Untrack(target); }
  ::CloseHandle(target);
}
void CheckForLeaks() {
  // Look for still registered handles
}

在程序结束时，您需要调用 CheckForLeaks。就像我说的，虽然工作量很大，但它可能对你的场景有所帮助。

Is your code only creating handles through CreateFile? If so you can just macro these methods out to versions that do custom implemented leak detection. It's a lot of work but it will get the job done.

#if DEBUG
#define CreateFile DebugCreateFile
#define CloseHandle DebugCloseHandle
#endif
// in another cpp file
#undef CreateFile
#undef CloseHandle
HANDLE DebugCreateFile(...) {
  HANDLE real = ::CreateFile(...);
  TrackHandle(real);
  return real;
}
void DebugCloseHandle(HANDLE target) {
  if (IsTracked(target)) { Untrack(target); }
  ::CloseHandle(target);
}
void CheckForLeaks() {
  // Look for still registered handles
}

At the end of your program you'd need to call CheckForLeaks. Like I said though, quite a bit of work but it may help with your scenairo.

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