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From: Anthony Williams (anthony_w.geo_at_[hidden])
Date: 2007-10-08 10:42:29

Jeff Garland <jeff_at_[hidden]> writes:

> At the Kona meeting (just finished) the standard committee made very
> significant progress on threading for C++0x -- voting in a proposal written by
> Howard H, Beman, Anthony Williams, myself, and others -- subject to wording
> changes to be made by a small drafting committee. Basically we were in
> agreement on semantics, but even after several late night drafting sessions
> people weren't happy with the standardeze.

That's unfortunate.

> While much of the proposal is based on Boost.thread it has some serious
> departures in the way mutexes and guard interfaces work, it's use of date-time
> types for clock/timing interfaces and such. At this point I feel it would be
> very important to have a reference implementation widely available to Boosters
> and others to play with so that any issues are shaken out while there's still
> time tweak things. Howard has been maintaining a reference implementation,
> but this is a call out to the broader thread development team (not sure who
> all that is now besides Anthony) to consider how we might formalize this into
> Boost.threads.
> Thoughts?

The boost thread team is pretty much just me at the moment, though there's a
reasonable level of interest from others (such as Peter Dimov).

I'm trying to update trunk to be have more of the C++0x interface at the
moment. I've already integrated call_once (though I forgot only MSVC has
_ReadWriteBarrier, and I haven't done the variadic arguments yet), and I'm
currently working on the mutexes. I'm keen to get everything updated as much
as possible before the 1.35 cutoff. I've got a reasonably up-to-date Windows
implementation to use as a basis, and I've been working through the POSIX

Also, even though it's been punted to TR2, I want to get the read-write mutex
back in --- I have a new implementation, and it's been missing since 1.32, so
it would be good to get it back in the relese.


Anthony Williams
Just Software Solutions Ltd -
Registered in England, Company Number 5478976.
Registered Office: 15 Carrallack Mews, St Just, Cornwall, TR19 7UL

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