I am writing C++ code to enumerate the whole HDD and drive listing. However, it takes more than 15 minutes to complete the disk enumeration of all drives (HDD capacity of 500GB) and compile the response in a binary file.
However, I have a 3rd party executable which gives me the listing of the whole disk in just less than two minutes. Can you please look into my code and suggest some performance improvement techniques?
EnumFiles(CString FolderPath, CString SearchParameter,WIN32_FIND_DATAW *FileInfoData)
{
CString SearchFile = FolderPath + SearchParameter;
CString FileName;
hFile = FindFirstFileW(SearchFile, FileInfoData); // \\?\C:\*
if (hFile == INVALID_HANDLE_VALUE)
{
// Error
}
else
{
do
{
FileName = FileInfoData->cFileName;
if (FileInfoData->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
if (! (FileName == L"." || FileName == L".."))
{
// Save the Folder Information
EnumFiles(FolderPath + FileName +(L"\\"), SearchParameter,FileInfoData);
}
}
else
{
// Save the File Parameters
}
} while (FindNextFileW(hFile, FileInfoData));
}
FindClose(hFile);
}