[omniORB] Callback

[Shashijeevan M P]

Hi,

In my view you can do asynchronous invocations in following ways.

1. DII (The code becomes complex & I do not the support provided by omniORB)
2. Use CORBA Messaging service (Not Yet implemented in omniORB)
3. Use Distributed Callback (Which you are trying)

Of all these, the third one is most reasonable because its simple and
implementable.

You can have look at the following papers for more information

1. Distributed Callbacks and Decoupled Communication in CORBA
2. An Introduction to CORBA Messaging

You can find their on-line versions at the following link.

http://siesta.cs.wustl.edu/~schmidt/report-doc.html

All the best.

Bye,
Shashi

> -----Original Message-----
> From:	Renny Koshy [SMTP:renny@visualsoft.com]
> Sent:	Friday, November 12, 1999 1:36 AM
> To:	omniorb-list@uk.research.att.com
> Subject:	[omniORB] Callback
> 
> Does anyone know how to setup callbacks in omniORB?  I've looked @ the
> IDL specs and omniORB docs without much luck.
> 
> here's what I need to get working...
> 
> GALClient:                                    GALServer:
>     ----- IncomingServiceReq ----->
>                                                     Does some processing
> 
>   <----- Indicate Acceptance  ------
>                                                     Does some processing
> 
>   <----- Request Add'l info ---------
>                                                     Does some processing
> 
>   <----- Disconnect -----------------
>    ------ Requester Dropped -------->
>   <----- Write account entry --------
> 
> This is ONE SERVICE REQUEST... however we don't want the system to
> block... i.e. the GALClient should be able to send service requests to
> other GALServers during this whole time.
> 
> I figure if I send the ISR as a non-blocking, Async request, I can then
> proceed to go an do
> other things?  But how do I do it?
> 
> Thanks
> 
> -Renny
>