(I essentially agree with everything Tim, but want to add one technical detail)
On 29 Dec 2008, at 13:12, Tim Moore wrote: > Putting snark > aside, I'd suggest that FG is not in as bad shape as you think. The > property > system is already a great mechanism for communication among the sub- > systems of > FG. A great project would be to look at making the property system > thread-safe, > and follow that up by turning it into a "blackboard" that can be > used by > distributed copies of FlightGear. Just to add, Simgear now has some good threading primitives, and so does OSG. The refcounting system is thread-safe, and I'm planning a TLS / pool-based system to make property nodes thread-safe as well (hopefully without incurring a per-node lock, but that's getting into deep technical debates). (If anyone wants to have a technical discussion about this, great) The key thing is, we have a good modularity thanks the to SGSubsystem and properties. It needs some enhancements in some limited ways, and we have state that violates the property-tree abstraction for various (valid!) reasons, but I don't believe there is any major obstacle to running batches of subsystems on worker threads in the medium term. It's not a high priority compared to other things, since the biggest multi-thread enhancements come 'for free' thanks to OSG. But it does not need some major re-think or re-design, as far as I can see. For everything else, I can only agree with Tim. James ------------------------------------------------------------------------------ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
