On Saturday, 13 February 2016 at 08:16:04 UTC, Ola Fosheim
Grøstad wrote:
On Saturday, 13 February 2016 at 03:03:05 UTC, tsbockman wrote:
I was actually suggesting encoding the shared-ness into the
memory address itself. (No tricks - just allocate shared data
in a separate memory range. This may only be feasible on
64-bit though, with its over-abundance of address space.)
This way, you can determine whether the (meta-)data is shared
without accessing it at all, just by asking the allocator
about the address.
Be careful:
https://en.wikipedia.org/wiki/Address_space_layout_randomization
What issue, specifically, are you trying to point out?
Obviously even with ASL the heap has large contiguous chunks of
address space available to it, otherwise it could not allocate
large arrays. That is all that is required for my scheme to be
workable, I think.
