ApplicationVerifier未检测到句柄泄漏,该怎么办? [英] ApplicationVerifier is not detecting handle leaks, what do I do?
问题描述
我确实正确选择了可执行文件,因为我可以使它响应我所做的某些事情.但是我无法让ApplicationVerifier正确检测到句柄泄漏.
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.
这里是一个例子:
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未检测到此.
ApplicationVerifier doesn't detect this.
我该怎么做才能检测到以上问题?
What can I do to detect the above problem?
推荐答案
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,但可以完成工作.
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
}
在程序结束时,您需要调用CheckForLeaks.就像我说的那样,需要做很多工作,但这可能会对您的scenairo有所帮助.
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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