Co_Routines Support for Oberon

[Dmitry Dagaev]

If RETURN is for termination only, it can be accepted. If for intermediate transfer to parent - not.
Co_ package will remain the same, as new kernel version is not applicable for me. In any case, I'll finish my own Kernel with MarkRegion support.

[Ivan Denisov]

If RETURN is for termination only, it can be accepted. If for intermediate transfer to parent - not.
Co_ package will remain the same, as new kernel version is not applicable for me. In any case, I'll finish my own Kernel with MarkRegion support.

Dmitry, you have said that initial Josef's version of Kernel is ok for your aims. Did you change your opinion?
http://blackboxframework.org/unstable/i ... a1.816.zip

[Dmitry Dagaev]

No, he has changed his version

[Ivan Denisov]

No, he has changed his version

We still in the discussion how to make this. So we are hearing all the arguments for and against various versions. I am also think that initial version of the Kernel was better. However also we should move WinApi from basic interface modules of the System folder to Host subsystem.

[Dmitry Dagaev]

Josef,
Performance benefits can be reached for background tasks. Co_ObxActions in background gains 400000 times per BlackBox ObxActions example in execution time. Why? Scheduler uses Services.Action time effectively. See ObxActions above.

[Robert]

I am not in a position to add anything of technical significance to this discussion, but just wanted to say I have been reading it with great interest.

I particularly liked the hungry philosophers example; so much so I described it to the (non computer) people I was staying with as a guest last weekend. Their reaction was that the philosophers were not doing any thinking, or they would have thought to buy more forks, or eat with their fingers. I have been teased about forks and thinking every mealtime since.

[Dmitry Dagaev]

The alternative way of problem solving means that starvation encourages people to use their brains effectively. At least to scale on more resources.

[luowy]

Dmitry
Do you have updated your Co_ package?
the module Co_Api is WinApi interface, the calling convention should be stdcall,
your [ccall] flag confusing me.

[Dmitry Dagaev]

The only reason to use ConvertThreadToFiberEx is to use FIBER_FLAG_FLOAT_SWITCH... So I met the portability problem and decided to use default behaviour.

The latest version uses ConvertThreadToFiber

[Josef Templ]

Josef,
Performance benefits can be reached for background tasks. Co_ObxActions in background gains 400000 times per BlackBox ObxActions example in execution time. Why? Scheduler uses Services.Action time effectively. See ObxActions above.

If it is considered important it should be possible to optimize special Task use cases
by executing several rounds at once, I think.
I havn't looked into this yet because i tried to keep the base module simple.
But it may be a good idea indeed. Don't know yet how complicated it would be.

- Josef