Hallo Saptarshi,
As for leJOS' native C layer, that's all greek to me by myself - I just
did some isolated adjustments there recently to get it running on both
Windows and Linux.
Hence I will not be able to tell you the process flow in question off-hand.
However, I'm entirely of your way of thinking that some (ideally
graphical) documentation here would be tremendously helpful.
A means to achieve this could be to harvest the C code into a model
described in a DSL with graphical concrete syntax (UML might not be the
best suited one here as its domain is commonly considered to be OO -
well, that's subject to discussion, though).
Yet, my expertise about according tools in the market (in particular
ones that are able to visualize dynamic behavior of existing C code) is
pretty limited - maybe Rational Rose (most presumably rather expensive)?
How about Microsofts Visual C line? Is there any respective Open Source
stuff out there?
Does anybody know?
I guess usage of such a tool might prove reasonable also when addressing
the design of a leJOS version for LEGO's upcoming NXT.
Regards,
Matthias
Saptarshi Purkayastha wrote:
Great work Matthias!! Thanks for the UML diagrams.. I think they can be
useful for any1 wanting to understand the leJOS API. I think this is
also a very useful steps for students who work with leJOS and Java on
the whole.
But I have already tinkered and played with all these classes and wanted
to try playing with the VM.. (the C parts) for which needed the
diagrams... Please if u have some free time, could you try and explain
me how the .c files interact with each other and how the actual Java
class files start running into execution.... I know it would be too much
to ask from as you may b busy with a lot of stuff.. But it would be nice
of you, if u could make rough diagrams/text just to explain the working...
Thanking you !!
--
Regards,
Saptarshi PURKAYASTHA
You Live by CHOICE, Not by CHANCE
On 2/21/06, *Matthias Paul Scholz *
<[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Hallo Saptarshi,
Saptarshi Purkayastha wrote:
[...]
>
> Also, can some1 please help me out with some diagrams or flowchart of
> the leJOS VM's working !!
>
As for the low level C part of LeJOS, there has never been a
representation in a DSL with a graphical concrete syntax I know of (but
no doubt it would be helpful to have one).
For the java parts, I have harvested it to an UML 1.4 model this very
morning (using the MDA platform ArcStyler) and committed the model into
the docs/uml folder of the leJOS cvs.
The model, though, might be useful for MagicDraw only, as xmi
interoperability between contemporary UML tools still is a pipe dream;
hence, for convenience I made also images of the class diagrams and
committed them to the same location, so you might want to have a look
there.
Yet, there are no visualizations of dynamic aspects (activity diagrams,
flowcharts or the likes) presently.
As a matter of fact, I consider this no great drawback (at least as
long
as the java layers are concerned), for the interaction patterns between
the classes are quite simple.
Regards,
Matthias
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