/**
* Request that a particular client authorize the Leases contained in the LeaseSet, after which
* the onCreateJob is queued up. If that doesn't occur within the timeout specified, queue up the
* onFailedJob. This call does not block.
*
* @param set LeaseSet with requested leases - this object must be updated to contain the signed
* version (as well as any changed/added/removed Leases)
* @param expirationTime ms to wait before failing
* @param onCreateJob Job to run after the LeaseSet is authorized
* @param onFailedJob Job to run after the timeout passes without receiving authorization
*/
void requestLeaseSet(LeaseSet set, long expirationTime, Job onCreateJob, Job onFailedJob) {
if (_dead) {
if (_log.shouldLog(Log.WARN)) _log.warn("Requesting leaseSet from a dead client: " + set);
if (onFailedJob != null) _context.jobQueue().addJob(onFailedJob);
return;
}
// We can't use LeaseSet.equals() here because the dest, keys, and sig on
// the new LeaseSet are null. So we compare leases one by one.
// In addition, the client rewrites the expiration time of all the leases to
// the earliest one, so we can't use Lease.equals() or Lease.getEndDate().
// So compare by tunnel ID, and then by gateway.
// (on the remote possibility that two gateways are using the same ID).
// TunnelPool.locked_buildNewLeaseSet() ensures that leases are sorted,
// so the comparison will always work.
int leases = set.getLeaseCount();
// synch so _currentLeaseSet isn't changed out from under us
synchronized (this) {
if (_currentLeaseSet != null && _currentLeaseSet.getLeaseCount() == leases) {
for (int i = 0; i < leases; i++) {
if (!_currentLeaseSet.getLease(i).getTunnelId().equals(set.getLease(i).getTunnelId()))
break;
if (!_currentLeaseSet.getLease(i).getGateway().equals(set.getLease(i).getGateway()))
break;
if (i == leases - 1) {
if (_log.shouldLog(Log.INFO)) _log.info("Requested leaseSet hasn't changed");
if (onCreateJob != null) _context.jobQueue().addJob(onCreateJob);
return; // no change
}
}
}
}
if (_log.shouldLog(Log.INFO))
_log.info("Current leaseSet " + _currentLeaseSet + "\nNew leaseSet " + set);
LeaseRequestState state = null;
synchronized (this) {
state = _leaseRequest;
if (state != null) {
if (_log.shouldLog(Log.DEBUG)) _log.debug("Already requesting " + state);
LeaseSet requested = state.getRequested();
LeaseSet granted = state.getGranted();
long ours = set.getEarliestLeaseDate();
if (((requested != null) && (requested.getEarliestLeaseDate() > ours))
|| ((granted != null) && (granted.getEarliestLeaseDate() > ours))) {
// theirs is newer
} else {
// ours is newer, so wait a few secs and retry
_context
.simpleScheduler()
.addEvent(new Rerequest(set, expirationTime, onCreateJob, onFailedJob), 3 * 1000);
}
// fire onCreated?
return; // already requesting
} else {
_leaseRequest =
state =
new LeaseRequestState(
onCreateJob, onFailedJob, _context.clock().now() + expirationTime, set);
if (_log.shouldLog(Log.DEBUG)) _log.debug("New request: " + state);
}
}
_context.jobQueue().addJob(new RequestLeaseSetJob(_context, this, state));
}
RequestThrottler(RouterContext ctx) {
this.context = ctx;
this.counter = new ObjectCounter<Hash>();
ctx.simpleScheduler().addPeriodicEvent(new Cleaner(), CLEAN_TIME);
}
