2 # Node routing routines
4 # Copyright (c) 2001 Dirk Koopman G1TLH
18 use vars qw(%list %valid @ISA $max $filterdef $obscount);
22 parent => '0,Parent Calls,parray',
23 nodes => '0,Nodes,parray',
24 users => '0,Users,parray',
25 usercount => '0,User Count',
26 version => '0,Version',
28 handle_xml => '0,Using XML,yesno',
29 lastmsg => '0,Last Route Msg,atime',
30 lastid => '0,Last Route MsgID',
31 do_pc9x => '0,Uses pc9x,yesno',
32 via_pc92 => '0,Came in via pc92,yesno',
33 obscount => '0,Obscount',
34 last_PC92C => '9,Last PC92C',
35 PC92C_dxchan => '9,Channel of PC92C,phash',
39 $filterdef = $Route::filterdef;
46 my $n = scalar (keys %list);
47 $max = $n if $n > $max;
58 # this routine handles the possible adding of an entry in the routing
59 # table. It will only add an entry if it is new. It may have all sorts of
60 # other side effects which may include fixing up other links.
62 # It will return a node object if (and only if) it is a completely new
63 # object with that callsign. The upper layers are expected to do something
66 # called as $parent->add(call, dxchan, version, flags)
73 confess "Route::add trying to add $call to myself" if $call eq $parent->{call};
74 my $self = get($call);
76 $self->_addparent($parent);
77 $parent->_addnode($self);
80 $self = $parent->new($call, @_);
81 $parent->_addnode($self);
82 dbg("CLUSTER: node $call added") if isdbg('cluster');
87 # this routine is the opposite of 'add' above.
89 # It will return an object if (and only if) this 'del' will remove
90 # this object completely
98 # delete parent from this call's parent list
99 $pref->_delnode($self);
100 $self->_delparent($pref);
102 my $ncall = $self->{call};
104 # is this the last connection, I have no parents anymore?
105 unless (@{$self->{parent}}) {
106 foreach my $rcall (@{$self->{nodes}}) {
107 next if grep $rcall eq $_, @_;
108 my $r = Route::Node::get($rcall);
109 push @nodes, $r->del($self, $ncall, @_) if $r;
112 delete $list{$ncall};
114 dbg("CLUSTER: node $ncall deleted") if isdbg('cluster');
119 # this deletes this node completely by grabbing the parents
120 # and deleting me from them, then deleting me from all the
126 my $ncall = $self->{call};
128 # get rid of users and parents
130 if (@{$self->{parent}}) {
131 foreach my $call (@{$self->{parent}}) {
132 my $parent = Route::Node::get($call);
133 push @out, $parent->del($self) if $parent;
136 # get rid of my nodes
137 push @out, $self->del_nodes;
138 # this only happens if we a orphan with no parents
141 delete $list{$ncall};
150 foreach my $rcall (@{$parent->{nodes}}) {
152 push @out, $r->del($parent, $parent->{call}, @_) if $r;
160 for (@{$self->{users}}) {
161 my $ref = Route::User::get($_);
162 $ref->del($self) if $ref;
167 # add a user to this node
175 confess "Trying to add NULL User call to routing tables" unless $ucall;
177 my $uref = Route::User::get($ucall);
180 @out = $uref->addparent($self);
182 $uref = Route::User->new($ucall, $self->{call}, $here, $ip);
185 $self->_adduser($uref);
186 $self->{usercount} = scalar @{$self->{users}};
191 # delete a user from this node
199 @out = $self->_deluser($ref);
202 confess "tried to delete non-existant $ref->{call} from $self->{call}";
204 $self->{usercount} = scalar @{$self->{users}};
211 if (@_ && @{$self->{users}} == 0) {
212 $self->{usercount} = shift;
214 return $self->{usercount};
220 return @{$self->{users}};
226 return @{$self->{nodes}};
233 foreach my $call (@{$self->{nodes}}) {
234 next if grep $call eq $_, @_;
237 push @out, $r->rnodes($call, @_) if $r;
242 # this takes in a list of node and user calls (not references) from
243 # a config type update for a node and returns
244 # the differences as lists of things that have gone away
245 # and things that have been added.
246 sub calc_config_changes
249 my %nodes = map {$_ => 1} @{$self->{nodes}};
250 my %users = map {$_ => 1} @{$self->{users}};
253 if (isdbg('route')) {
254 dbg("ROUTE: start calc_config_changes");
255 dbg("ROUTE: incoming nodes on $self->{call}: " . join(',', sort @$cnodes));
256 dbg("ROUTE: incoming users on $self->{call}: " . join(',', sort @$cusers));
257 dbg("ROUTE: existing nodes on $self->{call}: " . join(',', sort keys %nodes));
258 dbg("ROUTE: existing users on $self->{call}: " . join(',', sort keys %users));
260 my (@dnodes, @dusers, @nnodes, @nusers);
261 push @nnodes, map {my @r = $nodes{$_} ? () : $_; delete $nodes{$_}; @r} @$cnodes;
262 push @dnodes, keys %nodes;
263 push @nusers, map {my @r = $users{$_} ? () : $_; delete $users{$_}; @r} @$cusers;
264 push @dusers, keys %users;
265 if (isdbg('route')) {
266 dbg("ROUTE: deleted nodes on $self->{call}: " . join(',', sort @dnodes));
267 dbg("ROUTE: deleted users on $self->{call}: " . join(',', sort @dusers));
268 dbg("ROUTE: added nodes on $self->{call}: " . join(',', sort @nnodes));
269 dbg("ROUTE: added users on $self->{call}: " . join(',', sort @nusers));
270 dbg("ROUTE: end calc_config_changes");
272 return (\@dnodes, \@dusers, \@nnodes, \@nusers);
280 confess "already have $call in $pkg" if $list{$call};
282 my $self = $pkg->SUPER::new($call);
283 $self->{parent} = ref $pkg ? [ $pkg->{call} ] : [ ];
284 $self->{version} = shift || 5401;
285 $self->{flags} = shift || Route::here(1);
288 $self->{PC92C_dxchan} = {};
290 $self->{ip} = $ip if defined $ip;
291 $self->reset_obs; # by definition
293 $list{$call} = $self;
301 $call = shift if ref $call;
302 my $ref = $list{uc $call};
303 dbg("ROUTE: Failed to get Node $call" ) if !$ref && isdbg('routerr');
315 return $self->_addlist('parent', @_);
321 return $self->_dellist('parent', @_);
328 return $self->_addlist('nodes', @_);
334 return $self->_dellist('nodes', @_);
341 return $self->_addlist('users', @_);
347 return $self->_dellist('users', @_);
354 return $self->{obscount};
360 $self->{obscount} = $obscount;
367 my $lastid = $parent->{lastid};
369 return ($t < $lastid) ? $t+86400-$lastid : $t - $lastid;
380 if ($call && $hops) {
382 $parent->{PC92C_dxchan}->{$call} = $hops;
385 return (%{$parent->{PC92C_dxchan}});
392 my $call = $self->{call} || "Unknown";
394 dbg("ROUTE: destroying $pkg with $call") if isdbg('routelow');
398 # generic AUTOLOAD for accessors
404 my $name = $AUTOLOAD;
405 return if $name =~ /::DESTROY$/;
408 confess "Non-existant field '$AUTOLOAD'" unless $valid{$name} || $Route::valid{$name};
410 # this clever line of code creates a subroutine which takes over from autoload
411 # from OO Perl - Conway
412 *$AUTOLOAD = sub {$_[0]->{$name} = $_[1] if @_ > 1; return $_[0]->{$name}};