[plt-scheme] Calling virtual C++-functions from other MzScheme-threads

From: Matthew Flatt (mflatt at cs.utah.edu)
Date: Sat Nov 22 10:42:20 EST 2003

At Sat, 22 Nov 2003 07:37:07 -0800 (PST), Daniel "Kjøller" Skovenborg wrote:
> So the data is popped when shifting threads? 

Not popped --- just temporarily moved while other threads are active.

> Would it be harmful for MzScheme
> if I access the copy it keeps of 'a' (the data that is
> pushed on the stack when switching back to the
> thread)?

There's no way to find out where that copy is.

If you need to access an object from multiple Scheme threads, allocate
it in the heap instead of on the stack.


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