On 04/07/2012 04:08 AM, Grahame Bowland wrote:
For the case of "one big data structure multiple workers want to read
from", couldn't we write a module to do this within the language as it
stands? The module could take a unique reference (which can't contain
anything mutable), then issue (via unsafe code) immutable pointers to
the structure on request.
Obviously it's a broken thing to do (and afaik the language doesn't
guarantee that the address won't change unexpectedly, although I don't
think it will in the current implementation), but it might be an
interesting experiment.
Relevant here are Niko's thoughts on parallel blocks:
http://smallcultfollowing.com/babysteps/blog/2011/12/09/pure-blocks/
I'm very much in favor of experimentation in the unsafe module to find
what works in advance of baking stuff into the language. I feel that's
the right way to do programming language work -- "pave the cow paths",
as Dave Herman likes to say :)
Patrick
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