Re: Bidirectional RPC

On Thu, Jul 16, 2009 at 5:24 AM, Arne Kalaghan <[email protected]> wrote:

>
> Thank you for the reply. One of my requirements is to have at least C (or
> C++) and java implementations for both server and client side available.
> Plus the option to have other languages available for the client
> implementation. Because of this freedom I am looking for a wide-spread tool
> like xmlrpc and no experiments like jabber-rpc.
> If nobody can give some positive feedback how to tweak xmlrpc for
> bidirectional calls with the client (not the server) behind a firewall, or
> which other well established RPC allows such thing, I'll have to code my own
> mechanism.


You could consider having a getNextEvents service available; clients would
call it, and get back an array of the most recent events ready for delivery
to them.  The clever bit would be that the server would not immediately
answer with an empty array; it would stall for as long as it could before
returning the empty array.

Getting this really right in the face of network failures that can cause
transactions to be interrupted halfway through is the real fun, but I
suppose the web has made users a great deal more tolerant of transient
errors of some sorts.

Jay


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