[Vm-dev] Re: [Pharo-dev] Run Spur run!!

Levente Uzonyi leves at elte.hu
Sun Oct 26 18:59:17 UTC 2014


On Sun, 26 Oct 2014, Eliot Miranda wrote:

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> On Oct 26, 2014, at 8:58 AM, stepharo <stepharo at free.fr> wrote:
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>>> Yes, I'm very excited.  It's so great to have strong collaborators like Clément, Ronie, Doug and Tim.  But there's lots of room for more to join us.  For a really cool project how about grabbing Bert Freudenberg's VMMakerJS Squeak-vm-on-JavaScript, extract the event handling and rendering part and connect it to the Cog VM via sockets to give us a really fast web plugin?
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>> I thought that the event handling was what JB is doing with the idle process on android.
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> These are two different, but closely related things.  The event-driven VM and idle process work gives us better event handling (no event queue, important for better integration with GUIs) and a cheaper VM at idle (the CM blocks awaiting an event instead of spinning calling a shirt delay).

Just a friendly reminder before someone starts to reinvent the wheel: the 
event-driven VM already exists.

Proposal: http://lists.squeakfoundation.org/pipermail/vm-dev/2009-November/003385.html
Announcement: http://lists.squeakfoundation.org/pipermail/vm-dev/2010-January/003684.html
Repo: https://code.google.com/p/squeak-android-vm/
StackVM variant with other improvments: https://code.google.com/p/squeakvm-tablet/

Levente

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> To embed the system in a web browser one needs both to render to the browser window and to receive mouse and keyboard events from the window.
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> So the "plugin" must be connected to the VM's event subsystem e.g. by a socket.  Just as the VM's graphics subsystem must output to the browser window.  There are lots of ways to slice this and it will likely be different for BitBlt and Athens.
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> Eliot (phone)
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>> Stef
>>>
>>> --
>>> best,
>>> Eliot
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