COM/CORBA/DCOP (was: Hello people. I have some questions)

[Markus Schaber]

Hi,

Paul Rubin <phr-n2001 at nightsong.com> schrub:

> As I remember, there are two ways to use COM in-process.  One is to
> use the regular dispatch method which does a dictionary lookup.  The
> other way is to use a static index to get to the method.  The second
> way requires knowing the index, but the method invocation should end
> up the same as a C++ method invocation, i.e. just a function call
> through a dispatch vector.  I don't see how interacting with a CORBA
> ORB can be nearly that fast.  However, the dispatch method might end
> up being pretty slow.

In Corba, you communicate through stub objects. So the stub object 
could simply make a direct jump to the original method when the object 
is local.

The overhead then is in creating the stub, but calling is pretty slim.

markus
-- 
"The strength of the Constitution lies entirely in the determination of 
each citizen to defend it. Only if every single citizen feels duty 
bound to do his share in this defense are the constitutional rights 
secure." -- Albert Einstein