ApplicationVerifier doesn't detect handle leaks, what should I do?
I chose the executable correctly because I can get it to answer some of the things I do. But I cannot get the ApplicationVerifier to properly detect the descriptor leak.
Here's 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 does not detect this.
What can I do to detect the above problem?
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1 answer
Is your code just creating descriptors via CreateFile? If so, you can simply use the macros of these methods for versions that perform selective leak detection. It's a lot of work, but it gets 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 will need to call CheckForLeaks. As I said, quite a bit of work, but it might help with your scenario.
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