[openbeosnetteam] Re: Talking between modules [Was: Change of heart...]
- From: "Graham Gilmore" <grahamg@xxxxxxxxxxxx>
- To: openbeosnetteam@xxxxxxxxxxxxx
- Date: Tue, 05 Feb 2002 23:25:43 -0500
>
>Calling direct would be quicker but assumes a degree of knowledge of
it's
>surrounding that it probablt won't/can't have. I mean an ethernet
module
>shouldn't really need to know anything beyond, it's from
xx:xx:xx:xx:xx:xx
>and was sent to me (or a broad/multi-cast) and it's of type XXXX.
That's all
>it needs to do it's job.
All that's needed is a consistent interface to whatever you're going to
call. Each module would define the same entry point that the lower
level can call, and the lower level module just has to store pointers to
those entry points where it can easily look them up at its
initialization time. (I'm assuming that the lower level module knows/is
told that "module foo wants to register with you").
Graham
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