/** pings a bunch of hosts if necessary */
private void pingNewHosts() {
// if we have reached our desired # of altlocs, don't ping
if (isCancelled()) return;
// if we don't have anybody to ping, don't ping
if (!hasNonBusy()) return;
// if we haven't found a single RFD with URN, don't ping anybody
if (sha1 == null) return;
// if its not time to ping yet, don't ping
// use the same interval as workers for now
long now = System.currentTimeMillis();
if (now - lastPingTime < DownloadSettings.WORKER_INTERVAL.getValue()) return;
// create a ping for the non-firewalled hosts
HeadPing ping = new HeadPing(myGUID, sha1, getPingFlags());
// prepare a batch of hosts to ping
int batch = DownloadSettings.PING_BATCH.getValue();
List toSend = new ArrayList(batch);
int sent = 0;
for (Iterator iter = newHosts.iterator(); iter.hasNext() && sent < batch; ) {
RemoteFileDesc rfd = (RemoteFileDesc) iter.next();
if (rfd.isBusy(now)) continue;
iter.remove();
if (rfd.needsPush()) {
if (rfd.getPushProxies().size() > 0 && rfd.getSHA1Urn() != null) pingProxies(rfd);
} else {
pingedHosts.put(rfd, rfd);
toSend.add(rfd);
}
testedLocations.add(rfd);
sent++;
}
if (LOG.isDebugEnabled()) {
LOG.debug(
"\nverified hosts "
+ verifiedHosts.size()
+ "\npingedHosts "
+ pingedHosts.values().size()
+ "\nnewHosts "
+ newHosts.size()
+ "\npinging hosts: "
+ sent);
}
pinger.rank(toSend, null, this, ping);
lastPingTime = now;
}
/** schedules a push ping to each proxy of the given host */
private void pingProxies(RemoteFileDesc rfd) {
if (RouterService.acceptedIncomingConnection()
|| (RouterService.getUdpService().canDoFWT() && rfd.supportsFWTransfer())) {
HeadPing pushPing =
new HeadPing(
myGUID,
rfd.getSHA1Urn(),
new GUID(rfd.getPushAddr().getClientGUID()),
getPingFlags());
for (Iterator iter = rfd.getPushProxies().iterator(); iter.hasNext(); )
pingedHosts.put(iter.next(), rfd);
if (LOG.isDebugEnabled()) LOG.debug("pinging push location " + rfd.getPushAddr());
pinger.rank(rfd.getPushProxies(), null, this, pushPing);
}
}
