synchronized void add(Request req) {
if (suspended) {
if (log.isTraceEnabled())
log.trace(local_addr + ": queue is suspended; request " + req + " is discarded");
return;
}
start();
try {
queue.add(req);
history.add(new Date() + ": " + req.toString());
} catch (QueueClosedException e) {
if (log.isTraceEnabled()) log.trace("queue is closed; request " + req + " is discarded");
}
}
