HRESULT XPackageGetMountPathSize(  
         XPackageMountHandle mount,  
         size_t* pathSize  
)  

HRESULT MountDlc(char* dlcIdentifier)
{
    XPackageMountHandle mountHandle;
    HRESULT hr = XPackageMount(dlcIdentifier, &mountHandle);
    if (FAILED(hr)) return hr;

    size_t pathSize;
    hr = XPackageGetMountPathSize(mountHandle, &pathSize);
    if (FAILED(hr))
    {
        XPackageCloseMountHandle(mountHandle);
        return hr;
    }

    char* path = new (std::nothrow) char[pathSize];
    if (path == nullptr)
    {
        XPackageCloseMountHandle(mountHandle);
        return E_OUTOFMEMORY;
    }

    hr = XPackageGetMountPath(mountHandle, pathSize, path);
    if (FAILED(hr))
    {
        XPackageCloseMountHandle(mountHandle);
        delete[] path;
        return hr;
    }

    printf("Dlc %s mounted at path %s\n", dlcIdentifier, path);

    delete[] path;

    // Unmounts DLC path if this is the last handle
    // to it.
    XPackageCloseMountHandle(mountHandle);
    return S_OK;
}