Re: how to set the argument "-ORBInitref" innamingservice on vxworksplatform

On Sat, 2018-06-09 at 18:04 +0800, Tonny.W wrote:
> 
>        Thank you for your reply. What I do is to port omniorb on the
> vxWorks system, include the name service. My step is as following :

But _why_ are you including the naming service?  For what purpose?

>        1. I create a project naming "omniNams". In the file of
> "omniNames.cc " ,part of my code is  as follows.Then I compile and
> run it as a thread in the target board:

A "thread" sounds like is is sharing the process with other things,
including your naming service client. Is that right?  In omniORB, the
ORB and the POAs are global to the process they are used in. So, if
your thread for omniNames is actually the same process as your client,
you are sharing things that you might not intend.


[...]
>     3. My question is  that it throw a exception of "Caught
> CORBA::OBJECT_NOT_EXIST" ,when excute the code
> " CosNaming::NamingContext_var  rootContext =
> CosNaming::NamingContext::_narrow(obj);"

As the exception says, the object it is trying to call does not exist.
The object is meant to be the root NamingContext from omniNames. Did
you actually invoke the bit of code in omniNames that activates the
objects?  It's the call to log_->init() in the normal main() function
that does that.

[...]
>      However,in vxworks, the function callas following:
[...]
>       (6) omniInProcessIdentity::dispatch(omniCallDescriptor&
> call_desc)in the file  of " inProcessIdentity.cc"
>     
>      The difference is that  the (5)function  calls different funtion
> in the (6) funtion ,I don't know why.

It's using an in-process identity object because the NamingContext
object (which doesn't actually exist) claims to be in the same process
as the caller. In the working Windows case, the object is in a remote
process, so it uses a remote identity.

Before getting carried away with the details of how to initialise
everything, you need to be very clear about what you are trying to
achieve and why. It strikes me as very odd that you are trying to run
omniNames and clients of it in the same process. What is the value of
having the naming service in that situation?

What objects are going to be registered in omniNames?  What is going to
look them up?

Duncan.

-- 
 -- Duncan Grisby         --
  -- [email protected]     --
   -- http://www.grisby.org --


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