callback ports in c++ (programatically configuring)

grahamo

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Feb 21, 2007, 5:30:40 AM2/21/07

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Hi,

we're trying to overcome a firewall issue, specifically with our clients. I need to control the port a client listens on and I think the java equivalent is;

vbroker.se.iiop_ts.scm.iiop_tp.listener.port=<port>
vbroker.se.iiop_ts.scm.iiop_tp.listener.type=Callback-IIOP

However I'm running C++ so I need to do this programatically. Do I specify this string at startup? If yes is it simply a matter of;

-ORBvbroker.se.iiop_ts.scm.iiop_tp.listener.port=<port> -ORBvbroker.se.iiop_ts.scm.iiop_tp.listener.type=Callback-IIOP ?

There is the possibility that the same appliction will be launched two or more times on the same machine so I would like to be able to activate my callback object with a poa created with policies that control its port number. Is that possible? Actually now that I think of it, I absolutely must do this programmatically (as opposed to command line args). i.e. if there is already an instance of the app running on port 10, say, then I need to launch this instance on port 11, say.

the callback is not created at startup (it could be hours after the app initialiases that callbacks are created), so I really need to do this via a C++ api. Anybody have any ideas how to do this with visibroker?

thanks much, have a nice day.

Graham

grahamo

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Feb 23, 2007, 6:46:14 AM2/23/07

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to put this question another way.... is it possible to programmatically configure ports used by callback objects on a callback by callback basis? I can only see ORB level options which we don't want/need.

I'm going to have to do a release build with Orbix using wellknownaddressing if we can't get a borland option.... and I really don't want them to switch all this architecture over to IONA techno as I'm the one tasked with it if needs be.

HELP! :) cheers

GrahamO

Kevin Dean [TeamB]

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Feb 23, 2007, 8:17:48 AM2/23/07

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grahamo wrote:

>to put this question another way.... is it possible to programmatically
>configure ports used by callback objects on a callback by callback basis?
>I can only see ORB level options which we don't want/need.

I believe what you want to do is possible, but unfortunately most of my
experience is with VisiBroker for Java so I don't know the steps necessary
to configure a C++ application to do the same.

Your best bet would be to contact Borland support.

--
Kevin Dean [TeamB]
Dolphin Data Development Ltd.
http://www.datadevelopment.com/

Please see Borland's newsgroup guidelines at
http://info.borland.com/newsgroups/guide.html

grahamo

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Feb 23, 2007, 9:39:05 AM2/23/07

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Hi Kevin,

thanks for the reply, appreciate it. If its possible to do this with java than I can do the equivalent with C++. Do you have any java code knocking around that does it? that works for me.

cheers and ahve a good weekend.

G

Kevin Dean [TeamB]

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Feb 23, 2007, 3:40:23 PM2/23/07

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grahamo wrote:

>thanks for the reply, appreciate it. If its possible to do this with java
>than I can do the equivalent with C++. Do you have any java code knocking
>around that does it? that works for me.

Actually, I think I found what you want. Check out the VisiBroker for C++
Developer's Guide and look for the string "listener.port". You'll find
multiple instances of this string; it is used to specify the listener port
for a variety of objects in the VisiBroker realm. You should be able to
find the appropriate object and therefore configuration property without
much difficulty.

grahamo

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Feb 27, 2007, 5:21:22 AM2/27/07

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Hi Kevin,

thanks for that info.. you're a Jedi. Works a treat!! :)

cheers mate.

Grahamo

"Kevin Dean [TeamB]" <NkOdS...@datadevelopment.com> wrote: