EXTERNAL:[omniORB] Experience with dotnet (C#) and omniORB?

[Obermaier, Stephen J (IS)]

Martin -

We do a lot of .NET work (both C# and C++) and use both omniORB and
omniEvents as the communications medium between the various
applications.  What we have done is built a number of interface dll's in
C++ (with clr support) to wrapper the implementation classes derived
from the idl. This essentially allows all .net language implementations
access to the same interface(s).  The client side is quite
straightforward.  Each interface dll method accepts managed data,
converts the data to unmanaged types and invokes the appropriate
requests to the designated servant.  The server side gets a bit more
complicated, depending on what you are trying to do.  In a typical
scenario, a server implementation accesses a managed servant via a
delegate (defined via the .net interoperable services) to supply
whatever data is requested.  The thing is, you do this once and you have
a cookie cutter that you can build all your interfaces from.

We also wrappered all the normal tasks that that an application would
typically perform (ORB initialization, interaction with Names, etc.).

We looked at IIOP a number of years ago (it's been around for a while),
but we wanted a common infrastructure that allowed interoperability
between both managed and unmanaged applications.  Also, from what I
recall, it may not have supported the services like Names and Events).

Stephen J. Obermaier


-----Original Message-----
From: omniorb-list-bounces at omniorb-support.com
[mailto:omniorb-list-bounces at omniorb-support.com] On Behalf Of Martin B.
Sent: Tuesday, December 14, 2010 3:57 AM
To: omniORB-list at omniorb-support.com
Subject: EXTERNAL:[omniORB] Experience with dotnet (C#) and omniORB?

Hi all!

I know there's IIOP.NET [1] and I have found an old posting of Duncan 
[2], where: (Thu Dec 14 16:53:10 GMT 2006)
   > P.S. Yes, I know that there is also IIOP.NET.
   I would imagine that's a far more sensible way
   of doing CORBA work from C#.

Currently I can see two options for communicating btw. the dotnet part 
of our system with the native C++ part:
* Either I use IIOP.NET
* Or, I make a native C++ DLL that handles the CORBA communication via 
omniORB and define a custom interface for that DLL so that it can be 
loaded and used by a managed app. (We already do this at one place, and 
technically it isn't a problem, but obviously it is more maintenance
work.)

I therefore wanted to ask any omniORB users if they could share (recent)

experience of interfacing native C++ CORBA with dotnet(C#) applications.

thanks!
- Martin


[1] IIOP.NET : http://iiop-net.sourceforge.net/

[2] "How to use omniORB from C# " : 
http://www.omniorb-support.com/pipermail/omniorb-list/2006-December/0282
80.html

_______________________________________________
omniORB-list mailing list
omniORB-list at omniorb-support.com
http://www.omniorb-support.com/mailman/listinfo/omniorb-list