PR_LOG(gLog, PR_LOG_ALWAYS, ("rdfxml[%p] interrupt(%s)", this, mURLSpec));
RDFXMLDataSourceImpl::Interrupt(void){    for (PRInt32 i = mObservers.Count() - 1; i >= 0; --i) {        nsIRDFXMLSinkObserver* obs = (nsIRDFXMLSinkObserver*) mObservers[i];        obs->OnInterrupt(this);    }    return NS_OK;}