public Message[] removeDecodedMessages() {
if (messages_last_read.isEmpty()) return null;
Message[] msgs = (Message[]) messages_last_read.toArray(new Message[messages_last_read.size()]);
messages_last_read.clear();
return msgs;
}
void addListener(Object o) {
boolean register_with_downloads = false;
try {
this_mon.enter();
register_with_downloads = listeners.isEmpty();
ArrayList new_listeners = new ArrayList(listeners);
new_listeners.add(o);
this.listeners = new_listeners;
} finally {
this_mon.exit();
}
if (register_with_downloads) {
dm.addListener(this, true);
}
}