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Unfortunately, I have two problems:
- The implementation is prone to the ABA problem. I have a minor suspicion that this won't actually bite me because of the way messages are tracked, but I'm way too brain-dead to prove it.
- The implementation is of a LIFO stack. This means that the order of messages is not preserved; i.e. if I send a task the messages A,B,C,D, it may get them in any unpredictable order. I'd really prefer the semantics to be FIFO, so that if I send A,B,C,D then that's exactly the order the target thread reads the messages.
So I'm going to work on shifting towards a FIFO queue; I've got my eye on an implementation that promises to also solve the ABA problem, so that should be good.
All in all, this was actually less of a problem than I expected; I think I'll be done well before the Wednesday deadline. This is good, because the code needs a lot of polish before I'm really comfortable with releasing it at GDC.
Don't touch that remote - we'll be back shortly with yet more Gooey Chewy Epoch Goodness.