[vos-d] Sending unrecognized messages to S4

[Peter Amstutz]

Yea, that's reasonable.  It should be a core:error method though, and 
you'll want to come up with an error code and maybe raise an exception 
on the caller.

On Sat, Feb 24, 2007 at 08:24:36PM -0500, Reed Hedges wrote:
> 
> I encountered a problem in S4 just now: if you send a message to an
> object for which there is no handler registered, it basically ignores
> it.  If the sender happens to be waiting for a reply,
> then it has to wait for the full timeout.
> 
> However, we have a fairly well defined way of replying to messages in
> VOS, so it could reply with an "unhandled message" error.
> 
> E.g. the receiving Vobject can do this, I think? --
> 
> 
> if(...Message msg not handled...) {
>   Message err;
>   err.setNonce(msg->getNonce());
>   err.setMethod(msg->getMethod() + "-reply");  // Or maybe "core:error"
> instead?
>   err.insertField("error", "Unrecognized message method: " +
> msg->getMethod());
>   err.setType("reply"); // ?? or "update"?
>   from->sendMessage(err);
> }
> 
> 
> Does this make sense?  Can I add it? (It would be in
> VobjectBase::msgSendImpl() I think)

-- 
[   Peter Amstutz  ][ tetron at interreality.org ][ peter.amstutz at gdit.com ]
[Lead Programmer][Interreality Project][Virtual Reality for the Internet]
[ VOS: Next Generation Internet Communication][ http://interreality.org ]
[ http://interreality.org/~tetron ][ pgpkey:  pgpkeys.mit.edu  18C21DF7 ]

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