+
+sub nextid
+{
+ my $r = $id++;
+ $id = 0 if $id > 999;
+ return $r;
+}
+
+sub toxml
+{
+ my $self = shift;
+
+ unless (exists $self->{'-xml'}) {
+ $self->{o} ||= $main::mycall;
+ $self->{t} ||= IsoTime::hourminsec();
+ $self->{id} ||= nextid();
+
+ my ($name) = (ref $self) =~ /::(\w+)$/;
+ $self->{'-xml'} = $xs->XMLout($self, RootName =>lc $name, NumericEscape=>1);
+ }
+ return $self->{'-xml'};
+}
+
+sub route
+{
+ my $self = shift;
+ my $fromdxchan = shift;
+ my $to = shift;
+ my $via = $to;
+ my $dxchan;
+
+ if (my $u = $self->{u} && $self->{to} eq $main::mycall) {
+ $via ||= $u if ($dxchan = DXChannel::get($u));
+ }
+ $via ||= $self->{'-via'} || $self->{to};
+
+ unless ($via) {
+ dbg("XML: no route specified (" . dd($self) . ")") if isdbg('chanerr');
+ return;
+ }
+ if (ref $fromdxchan && $via && $fromdxchan->call eq $via) {
+ dbg("XML: Trying to route back to source (" . dd($self) . ")") if isdbg('chanerr');
+ return;
+ }
+
+ # always send it down the local interface if available
+ $dxchan ||= DXChannel::get($via);
+ if ($dxchan) {
+ dbg("route: $via -> $dxchan->{call} direct" ) if isdbg('route');
+ } else {
+ my $cl = Route::get($via);
+ $dxchan = $cl->dxchan if $cl;
+ dbg("route: $via -> $dxchan->{call} using normal route" ) if isdbg('route');
+ }
+
+ # try the backstop method
+ unless ($dxchan) {
+ my $rcall = RouteDB::get($via);
+ if ($rcall) {
+ $dxchan = DXChannel::get($rcall);
+ dbg("route: $via -> $rcall using RouteDB" ) if isdbg('route') && $dxchan;
+ }
+ }
+
+ unless ($dxchan) {
+ dbg("XML: no route available to $via") if isdbg('chanerr');
+ return;
+ }
+
+ if ($fromdxchan->call eq $via) {
+ dbg("XML: Trying to route back to source (" . dd($self) . ")") if isdbg('chanerr');
+ return;
+ }
+
+ if ($dxchan == $main::me) {
+ dbg("XML: Trying to route to me (" . dd($self) . ")") if isdbg('chanerr');
+ return;
+ }
+
+ $self->{o} ||= $main::mycall;
+ $self->{id} ||= nextid();
+ $self->{'-timet'} ||= $main::systime;
+
+ if ($dxchan->handle_xml) {
+ $dxchan->send($self->toxml);
+ } elsif ($dxchan->is_node) {
+ my $ref = $self->topcxx($dxchan);
+ $dxchan->send($ref);
+ } else {
+ my $ref = $self->tocmd($dxchan);
+ $dxchan->send($ref);
+ }
+}
+
+sub has_xml
+{
+ return exists $_[0]->{'-xml'};
+}
+
+sub has_pcxx
+{
+ return exists $_[0]->{'-pcxx'};
+}
+
+sub has_cmd
+{
+ return exists $_[0]->{'-cmd'};
+}
+