'Called when the consumer attached to me runs out of buffer.'

def resumeProducing(self):

    for pageridx in range((len(self.pageProducers) - 1), (-1), (-1)):
        pager = self.pageProducers[pageridx]
        pager.sendNextPage()
        if (not pager.stillPaging()):
            del self.pageProducers[pageridx]
    if (not self.pageProducers):
        self.transport.unregisterProducer()
