X-Git-Url: http://dxcluster.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FThingy%2FPing.pm;h=de295c556c939909dbe062793842867e9942ba2a;hb=809ac2e606559d68ff6e0580c0681fc71c6bc4b9;hp=6fe808b53423a45d23b6712191dba3d9a44bc3ea;hpb=4d22d5fd3874e8292d82f84a777b99ff7d10402a;p=spider.git

diff --git a/perl/Thingy/Ping.pm b/perl/Thingy/Ping.pm
index 6fe808b5..de295c55 100644
--- a/perl/Thingy/Ping.pm
+++ b/perl/Thingy/Ping.pm
@@ -19,15 +19,21 @@ use DXDebug;
 use DXUtil;
 use Thingy;
 use Spot;
+use Time::HiRes qw(gettimeofday tv_interval);
 
-use vars qw(@ISA);
+
+use vars qw(@ISA %ping $ping_ttl);
 @ISA = qw(Thingy);
 
+my $id;
+$ping_ttl = 300;				# default ping ttl
+
+
 sub gen_Aranea
 {
 	my $thing = shift;
 	unless ($thing->{Aranea}) {
-	 	$thing->{Aranea} = Aranea::genmsg($thing);
+	 	$thing->{Aranea} = Aranea::genmsg($thing, qw(id out o));
 	}
  	return $thing->{Aranea};
 }
@@ -43,6 +49,28 @@ sub gen_DXProt
 {
 	my $thing = shift;
 	my $dxchan = shift;
+	unless ($thing->{DXProt}) {
+		# we need to tease out the nodes out of all of this.
+		# bear in mind that a proxied PC prot node could be in
+		# {user} as well as a true user and also it may not
+		# have originated here.
+
+		my ($from, $to);
+		if ($thing->{out}) {
+			$from = $thing->{o};
+			$from ||= $thing->{user} unless Route::User::get($thing->{user});
+			$from ||= $thing->{origin};
+			$to = $thing->{touser} unless Route::User::get($thing->{touser});
+			$to ||= $thing->{group};
+		} else {
+			$from ||= $thing->{user} unless Route::User::get($thing->{user});
+			$from ||= $thing->{origin};
+			$to = $thing->{o};
+			$to ||= $thing->{touser} unless Route::User::get($thing->{touser});
+			$to ||= $thing->{group};
+		}
+		$thing->{DXProt} = DXProt::pc51($to, $from, $thing->{out});
+	}
 	return $thing->{DXProt};
 }
 
@@ -51,17 +79,25 @@ sub gen_DXCommandmode
 	my $thing = shift;
 	my $dxchan = shift;
 	my $buf;
-
+	if ($dxchan->{call} eq $thing->{touser}) {
+		$buf = $dxchan->msg('pingi', ($thing->{user} || $thing->{origin}), $thing->{ft}, $thing->{fave});
+	}
 	return $buf;
 }
 
+# called with the dxchan, line and the split out arguments
 sub from_DXProt
 {
-	my $thing = shift;
-	while (@_) {
-		my $k = shift;
-		$thing->{$k} = shift;
-	}
+	my $thing = ref $_[0] ? shift : $_[0]->SUPER::new(origin=>$main::mycall);
+	my $dxchan = shift;
+	$thing->{DXProt} = shift;
+	shift;						# PC51
+	$thing->{group} = shift;	# to call
+	my $from = shift;
+	$thing->{out} = shift;		# 1 = ping, 0 = pong;
+	$thing->{user} = $dxchan->{call};
+	$thing->{o} = $from unless $from eq $dxchan->{call};
+	$thing->remember if $thing->{out} && $thing->{group} ne $main::mycall;
 	return $thing;
 }
 
@@ -70,7 +106,108 @@ sub handle
 	my $thing = shift;
 	my $dxchan = shift;
 
-	$thing->broadcast($dxchan);
+	# is it for us?
+	if ($thing->{group} eq $main::mycall) {
+		if ($thing->{out} == 1) {
+			my $repthing = $thing->new_reply;
+			$repthing->{out} = 0;
+			$repthing->{id} = $thing->{id};
+			$repthing->{o} = $thing->{o} if $thing->{o};
+			$repthing->send($dxchan) if $repthing;
+		} else {
+
+			# it's a reply, look in the ping list for this one
+			my $ref;
+			$ref = $ping{$thing->{id}} if exists $thing->{id};
+			$ref = find(($thing->{user}||$thing->{origin}), ($thing->{touser}||$thing->{group})) unless $ref;
+			if ($ref) {
+				my $t = tv_interval($ref->{t}, [ gettimeofday ]);
+				my $tochan = DXChannel::get($ref->{touser} || $ref->{group});
+				if ($tochan) {
+					my $nopings = $tochan->user->nopings || $DXProt::obscount;
+					push @{$tochan->{pingtime}}, $t;
+					shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
+					
+					# cope with a missed ping, this means you must set the pingint large enough
+					if ($t > $tochan->{pingint}  && $t < 2 * $tochan->{pingint} ) {
+						$t -= $tochan->{pingint};
+					}
+					
+					# calc smoothed RTT a la TCP
+					if (@{$tochan->{pingtime}} == 1) {
+						$tochan->{pingave} = $t;
+					} else {
+						$tochan->{pingave} = $tochan->{pingave} + (($t - $tochan->{pingave}) / 6);
+					}
+					$tochan->{nopings} = $nopings; # pump up the timer
+				}
+				if (my $dxc = DXChannel::get($ref->{user} || $ref->{origin})) {
+					$thing->{ft} = sprintf "%.2f", $t;
+					$thing->{fave} = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
+					$thing->send($dxc);
+				}
+				delete $ping{$ref->{id}};
+			}
+		}
+	} else {
+		$thing->broadcast($dxchan);
+	}
 }
 
+# this just creates a ping for onward transmission
+# remember it if you want to ping someone from here	
+sub new_ping
+{
+	my $pkg = shift;
+	my $thing = $pkg->SUPER::new(@_);
+}
+
+# do this for pings we generate ourselves
+sub remember
+{
+	my $thing = shift;
+	$thing->{t} = [ gettimeofday ];
+	$thing->{out} = 1;
+	$thing->{id} = ++$id;
+	my $u = DXUser->get_current($thing->{to});
+	if ($u) {
+		$u->lastping(($thing->{user} || $thing->{group}), $main::systime);
+		$u->put;
+	}
+	$ping{$id} = $thing;
+}
+
+# remove any pings outstanding that we have remembered for this
+# callsign, return the number of forgotten pings
+sub forget
+{
+	my $call = shift;
+	my $count = 0;
+	my @out;	
+	foreach my $thing (values %ping) {
+		if (($thing->{user} || $thing->{group}) eq $call) {
+			$count++;
+			delete $ping{$thing->{id}};
+		}
+	}
+	return $count;
+}
+
+sub find
+{
+	my $to = shift;
+	my $from = shift;
+	my $user = shift;
+	
+	foreach my $thing (values %ping) {
+		if ($thing->{origin} eq $from && $thing->{group} eq $to) {
+			if ($user) {
+				return if $thing->{user} && $thing->{user} eq $user; 
+			} else {
+				return $thing;
+			}
+		}
+	}
+	return undef;
+}
 1;