Help with XML_RPC Library : How to return message from nested method

[eluser]louis w[/eluser]
Sorry that won't work.

Let me explain what is going on here, I didn't want to give too many details to over complicate things.

loadPage gets called to load a page, this method then needs to call a second method and store it's value in a variable ($load = $this->doWhatever(). $load needs to rename a variable. I need to be able to stop this process from anywhere along the line and return an error without having to return it all the way down the chain.

Currently in a non XML-RPC site this can be done easily with show_error which just sends the data to output library and calls exit();.

Is there anyway type of thing can be done with the XML-RPC library?