r1 - 2008-01-22 - 03:21:27 - TWikiContributorYou are here: NTP >  TWiki Web > TWikiAggregateIteratorDotPm
NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to being used in distributed denial-of-service (DDoS) attacks. Please also take this opportunity to defeat denial-of-service attacks by implementing Ingress and Egress filtering through BCP38.

ntp-4.2.8p15 was released on 23 June 2020. It addresses 1 medium-severity security issue in ntpd, and provides 13 non-security bugfixes over 4.2.8p13.

Please see the NTP Security Notice for vulnerability and mitigation details.

Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.

Package TWiki::AggregateIterator

combine multiple iterators

new(\@list, $unique)

Create a new iterator over the given list of iterators. The list is not damaged in any way.

if $unique is set, we try to not repeat values. Warning: $unique assumes that the values are strings (so works for cUID's )

hasNext() -> $boolean

Returns false when the iterator is exhausted.

my $it = new TWiki::ListIterator(\@list);
while ($it->hasNext()) {
   ...

next() -> $data

Return the next entry in the list.

The iterator object can be customised to pre- and post-process entries from the list before returning them. This is done by setting two fields in the iterator object:

  • {filter} can be defined to be a sub that filters each entry. The entry will be ignored (next() will not return it) if the filter returns false.
  • {process} can be defined to be a sub to process each entry before it is returned by next. The value returned from next is the value returned by the process function.

Edit | WYSIWYG | Attach | Printable | Raw View | Backlinks: Web, All Webs | History: r1 | More topic actions
 
This site is powered by the TWiki collaboration platformCopyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding NTP? Send feedback
Note: Please contribute updates to this topic on TWiki.org at TWiki:TWiki.TWikiAggregateIteratorDotPm