How to treat RAM data as if it was a real file?

Question

So I have some temp data in my program (in RAM). I want to somehow make it seem as it is a file (for example for sending it into another program which takes a file link as argument)?

Is it possible?

How to do such thing?

Answer 1

Why not simply write the file to disk? If writing to disk is too slow, you can pass the FILE_ATTRIBUTE_TEMPORARY flag to CreateFile to keep the data in cache (and avoid writing it to the physical device).

Sometimes the obvious solutions are the best...

Answer 2

If supported by your operating system (Unixoid systems and Windows do), you could try to use memory-mapped files.