private long ticklessTimer() {
// Calculate tickless timer, up to 1 hour
long tickless = System.currentTimeMillis() + 1000 * 3600;
for (STimer timer : timers) {
if (timer.when == -1) {
timer.when = timer.delay + System.currentTimeMillis();
}
if (tickless > timer.when) {
tickless = timer.when;
}
}
long timeout = tickless - System.currentTimeMillis();
if (timeout < 0) {
timeout = 0;
}
if (verbose) {
System.out.printf("I: zloop: polling for %d msec\n", timeout);
}
return timeout;
}
public int start() {
int rc = 0;
timers.addAll(newTimers);
newTimers.clear();
// Recalculate all timers now
for (STimer timer : timers) {
timer.when = timer.delay + System.currentTimeMillis();
}
// Main reactor loop
while (!Thread.currentThread().isInterrupted()) {
if (dirty) {
// If s_rebuild_pollset() fails, break out of the loop and
// return its error
rebuild();
}
long wait = ticklessTimer();
rc = pollset.poll(wait);
if (rc == -1) {
if (verbose) {
System.out.printf("I: zloop: interrupted (%d)\n", rc);
}
rc = 0;
break; // Context has been shut down
}
// Handle any timers that have now expired
Iterator<STimer> it = timers.iterator();
while (it.hasNext()) {
STimer timer = it.next();
if (System.currentTimeMillis() >= timer.when && timer.when != -1) {
if (verbose) {
System.out.println("I: zloop: call timer handler");
}
rc = timer.handler.handle(this, null, timer.arg);
if (rc == -1) {
break; // Timer handler signalled break
}
if (timer.times != 0 && --timer.times == 0) {
it.remove();
} else {
timer.when = timer.delay + System.currentTimeMillis();
}
}
}
if (rc == -1) {
break; // Some timer signalled break from the reactor loop
}
// Handle any pollers that are ready
for (int itemNbr = 0; itemNbr < pollSize; itemNbr++) {
SPoller poller = pollact[itemNbr];
if (pollset.getItem(itemNbr).isError()) {
if (verbose) {
System.out.printf(
"I: zloop: can't poll %s socket (%s, %s)\n",
poller.item.getSocket() != null ? poller.item.getSocket().getType() : "RAW",
poller.item.getSocket(),
poller.item.getRawSocket());
}
// Give handler one chance to handle error, then kill
// poller because it'll disrupt the reactor otherwise.
if (poller.errors++ > 0) {
removePoller(poller.item);
}
} else {
poller.errors = 0; // A non-error happened
}
if (pollset.getItem(itemNbr).readyOps() > 0) {
if (verbose) {
System.out.printf(
"I: zloop: call %s socket handler (%s, %s)\n",
poller.item.getSocket() != null ? poller.item.getSocket().getType() : "RAW",
poller.item.getSocket(),
poller.item.getRawSocket());
}
rc = poller.handler.handle(this, poller.item, poller.arg);
if (rc == -1) {
break; // Poller handler signalled break
}
}
}
// Now handle any timer zombies
// This is going to be slow if we have many zombies
for (Object arg : zombies) {
it = timers.iterator();
while (it.hasNext()) {
STimer timer = it.next();
if (timer.arg == arg) {
it.remove();
}
}
}
zombies.clear();
// Now handle any new timers added inside the loop
timers.addAll(newTimers);
newTimers.clear();
if (rc == -1) {
break;
}
}
return rc;
}