Re: cloning at the interface level?

From:

=?UTF-8?B?RXJpayBXaWtzdHLDtm0=?= <Erik-wikstrom@telia.com>

Newsgroups:

comp.lang.c++

Date:

Thu, 31 Jul 2008 23:12:30 GMT

Message-ID:

<yFrkk.1276$U5.930@newsb.telia.net>

On 2008-08-01 00:54, DomoChan@gmail.com wrote:

Please quote the text you are replying to.

Actually I just want to transfer ownership. I have a file loading
subsystem, and a resource storage subsystem ( these are separate dll's
if it matters ). the data is instantiated within the loader, and
should be transferred to storage. I actually tried to virtual clone
method yesterday, and I could have sworn it didnt work, I just tried
it again, and works perfectly : ) But, is there a way to say some
memory belongs to another process?

If all you need to do is to transfer ownership then simply storing the
pointer might work, note though that you might not be able to deallocate
the memory they point to in any other DLL than the one you allocated it
it, but that could be solved by exporting a function you can call. The
advantage of such a scheme is that you do not have to pay the overhead
of copying all the INode objects.

Note that different DLLs are not the same thing as different processes,
(and that neither of those things are on topic in this group, a Windows
group might be a better place). You might however be able to create a
third, shared heap in which both DLLs may allocate and deallocate.

--
Erik Wikstr??m