AnyEvent::XMPP::Ext::Ping(3pm)				User Contributed Perl Documentation			    AnyEvent::XMPP::Ext::Ping(3pm)

NAME

       AnyEvent::XMPP::Ext::Ping - Implementation of XMPP Ping XEP-0199

SYNOPSIS

	  use AnyEvent::XMPP::Ext::Ping;

	  my $con = AnyEvent::XMPP::IM::Connection->new (...);
	  $con->add_extension (my $ping = AnyEvent::XMPP::Ext::Ping->new);

	  # this enables auto-timeout of a connection if it didn't answer
	  # within 120 seconds to a ping with a reply
	  $ping->enable_timeout ($con, 120);

	  my $cl = AnyEvent::XMPP::Client->new (...);
	  $cl->add_extension (my $ping = AnyEvent::XMPP::Ext::Ping->new);

	  # this enables auto-timeout of newly created connections
	  $ping->auto_timeout(120);

	  $ping->ping ($con, 'ping_dest@server.tld', sub {
	     my ($time, $error) = @_;
	     if ($error) {
		# we got an error
	     }
	     # $time is a float (seconds) of the rtt if you got Time::HiRes
	  });

DESCRIPTION

       This extension implements XEP-0199: XMPP Ping.  It allows you to define a automatic ping timeouter that will disconnect dead connections
       (which didn't reply to a ping after N seconds). See also the documentation of the "enable_timeout" method below.

       It also allows you to send pings to any XMPP entity you like and will measure the time it took if you got Time::HiRes.

METHODS

       new (%args)
	   Creates a new ping handle.

       auto_timeout ($timeout)
	   This method enables automatic connection timeout of new connections. It calls "enable_timeout" (see below) for every new connection
	   that was connected and emitted a "stream_ready" event.

	   This is useful if you want connections that have this extension automatically timeouted. In particular this is useful with modules like
	   AnyEvent::XMPP::Client (see also SYNOPSIS above).

       enable_timeout ($con, $timeout)
	   This enables a periodical ping on the connection $con.  $timeout must be the seconds that the ping intervals last.

	   If the server which is connected via $con didn't respond within $timeout seconds the connection $con will be disconnected.

	   Please note that there already is a basic timeout mechanism for dead TCP connections in AnyEvent::XMPP::Connection, see also the
	   "whitespace_ping_interval" configuration variable for a connection there. It then will depend on TCP timeouts to disconnect the
	   connection.

	   Use "enable_timeout" and "auto_timeout" only if you really feel like you need an explicit timeout for your connections.

       ping ($con, $dest, $cb, $timeout)
	   This method sends a ping request to $dest via the AnyEvent::XMPP::Connection in $con. If $dest is undefined the ping will be sent to
	   the connected server.  $cb will be called when either the ping timeouts, an error occurs or the ping result was received. $timeout is
	   an optional timeout for the ping request, if $timeout is not given the default IQ timeout for the connection is the relevant timeout.

	   The first argument to $cb will be the seconds of the round trip time for that request (If you have Time::HiRes).  If you don't have
	   Time::HiRes installed the first argument will be undef.

	   The second argument to $cb will be either undef if no error occured or a AnyEvent::XMPP::Error::IQ error object.

       ignore_pings ($bool)
	   This method is mostly for testing, it tells this extension to ignore all ping requests and will prevent any response from being sent.

AUTHOR

       Robin Redeker, "<elmex at ta-sa.org>", JID: "<elmex at jabber.org>"

COPYRIGHT &; LICENSE
       Copyright 2007, 2008 Robin Redeker, all rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-01-23					    AnyEvent::XMPP::Ext::Ping(3pm)