[Vortex] About multiple async RPC call using same callback function

[Scott Zhang]

Thanks.

For the moment, I am doing each rpc call with a new thread. Because this is
easier.


Regards.
Scott

On Sun, Oct 9, 2011 at 2:56 PM, Francis Brosnan Blázquez <francis at aspl.es>wrote:

> > Hello. All.
>
> Hi Scott,
>
> >     I am writing an online teaching application.
>
> Nice,
>
> > The problem puzzle me now is in my application, each time an classroom
> > is created, it needs to use rpc call to load data from server which
> > returns a big structure. I am using C++. Now if I have 3 classrooms
> > start up at same time. Each classroom will have its own rpc channel.
> > And it will invoke rpc call from its own channel async. But when the
> > result return, the callback function is same. I checked document,
> > there is no way to know which channel this callback is for. How do I
> > know from which channel I invoke the rpc call so I can find who invoke
> > the rpc call?
>
> You have several methods but depends on your design. For example, you
> can use the following to "mark" each channel assigned to a room:
>
>  vortex_channel_set_data (channel, "classroomid", PTR_TO_INT(1));
>
> ...then you can use the following to know which room it is:
>
>  classroom_id = PTR_TO_INT (vortex_channel_get_data (channel,
> "classrommid"));
>
> However, I don't like too much that method because it binds statically
> channels to rooms. If you can, change your rpc payload content to
> include the class room id, you can use any channel to query/operate over
> any class room.
>
> Cheers!
>
> > Thanks.
> > Regards.
> > Scott
> > _______________________________________________
> > Vortex mailing list
> > Vortex at lists.aspl.es
> > http://lists.aspl.es/cgi-bin/mailman/listinfo/vortex
> --
> Francis Brosnan Blázquez <francis at aspl.es>
> ASPL
> 91 134 14 22 - 91 134 14 45 - 91 116 07 57
>
> AVISO LEGAL
>
> En virtud de lo dispuesto en la Ley Orgánica 15/1999, de 13 de
> diciembre, de Protección de Datos de Carácter Personal, le informamos de
> que sus datos de carácter personal, recogidos de fuentes accesibles al
> público o datos que usted nos ha facilitado previamente, proceden de
> bases de datos propiedad de Advanced Software Production Line, S.L.
> (ASPL).
>
> ASPL garantiza que los datos serán tratados con la finalidad de mantener
> las oportunas relaciones comerciales o promocionales con usted o la
> entidad que usted representa. No obstante, usted puede ejercitar sus
> derechos de acceso, rectificación, cancelación y oposición dispuestos en
> la mencionada Ley Orgánica, notificándolo por escrito a ASPL -
> Protección Datos, C/Antonio Suárez 10 A-102, 28802, Alcalá de Henares
> (Madrid).
>
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.aspl.es/pipermail/vortex/attachments/20111011/18002347/attachment.htm>