void DocumentPlugin scanner auto ppol policies begin if ppol policies

void DocumentPlugin::scanner() {
    auto ppol = policies.begin();
    if (ppol == policies.end()) {
        writeLog(MessageType::General, "No policies enabled, cancelling scan.");
        return;
    }
    writeLog(MessageType::General, "Starting scanning...");
    while (!isStopping())
        try {
            scan(*ppol);
            ++ppol;
            if (ppol == policies.end())
                ppol = policies.begin();
            if (isStopping())
                break;
            sleep(120);
        } catch (std::exception& e) {
            report_exception(e, "Scanning with policy %d:%s", ppol->policy_id, ppol->guid);
        }
}