3 # This is the DX cluster 'daemon'. It sits in the middle of its little
4 # web of client routines sucking and blowing data where it may.
6 # Hence the name of 'spider' (although it may become 'dxspider')
8 # Copyright (c) 1998 Dirk Koopman G1TLH
13 # make sure that modules are searched in the order local then perl
15 # root of directory tree for this system
17 $root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
19 unshift @INC, "$root/perl"; # this IS the right way round!
20 unshift @INC, "$root/local";
23 # $Exporter::Verbose = 1;
49 @inqueue = (); # the main input queue, an array of hashes
50 $systime = 0; # the time now (in seconds)
51 $version = 1.5; # the version no of the software
52 $starttime = 0; # the starting time of the cluster
54 # handle disconnections
58 return if !defined $dxchan;
59 $dxchan->disconnect();
62 # handle incoming messages
65 my ($conn, $msg, $err) = @_;
66 my $dxchan = DXChannel->get_by_cnum($conn); # get the dxconnnect object for this message
68 if (defined $err && $err) {
69 disconnect($dxchan) if defined $dxchan;
73 # set up the basic channel info - this needs a bit more thought - there is duplication here
74 if (!defined $dxchan) {
75 my ($sort, $call, $line) = $msg =~ /^(\w)(\S+)\|(.*)$/;
77 # is there one already connected?
78 if (DXChannel->get($call)) {
79 my $mess = DXM::msg($lang, 'conother', $call);
80 dbg('chan', "-> D $call $mess\n");
81 $conn->send_now("D$call|$mess");
83 dbg('chan', "-> Z $call bye\n");
84 $conn->send_now("Z$call|bye"); # this will cause 'client' to disconnect
88 # is there one already connected elsewhere in the cluster?
89 if (($call eq $main::myalias && DXCluster->get_exact($call)) ||
90 DXCluster->get($call)) {
91 my $mess = DXM::msg($lang, 'concluster', $call);
92 dbg('chan', "-> D $call $mess\n");
93 $conn->send_now("D$call|$mess");
95 dbg('chan', "-> Z $call bye\n");
96 $conn->send_now("Z$call|bye"); # this will cause 'client' to disconnect
100 # the user MAY have an SSID if local, but otherwise doesn't
101 my $user = DXUser->get($call);
102 if (!defined $user) {
103 $user = DXUser->new($call);
105 $user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
110 $dxchan = DXCommandmode->new($call, $conn, $user) if ($user->sort eq 'U');
111 $dxchan = DXProt->new($call, $conn, $user) if ($user->sort eq 'A');
112 die "Invalid sort of user on $call = $sort" if !$dxchan;
115 # queue the message and the channel object for later processing
117 my $self = bless {}, "inqueue";
118 $self->{dxchan} = $dxchan;
119 $self->{data} = $msg;
120 push @inqueue, $self;
129 # cease running this program, close down all the connections nicely
133 foreach $dxchan (DXChannel->get_all()) {
136 Log('cluster', "DXSpider V$version stopped");
140 # the reaper of children
146 # this is where the input queue is dealt with and things are dispatched off to other parts of
150 my $self = shift @inqueue;
153 my $data = $self->{data};
154 my $dxchan = $self->{dxchan};
155 my ($sort, $call, $line) = $data =~ /^(\w)(\S+)\|(.*)$/;
157 # do the really sexy console interface bit! (Who is going to do the TK interface then?)
158 dbg('chan', "<- $sort $call $line\n");
161 my $user = $dxchan->user;
162 if ($sort eq 'A' || $sort eq 'O') {
163 $dxchan->start($line, $sort);
164 } elsif ($sort eq 'D') {
165 die "\$user not defined for $call" if !defined $user;
168 $dxchan->normal($line);
170 disconnect($dxchan) if ($dxchan->{state} eq 'bye');
171 } elsif ($sort eq 'Z') {
174 print STDERR atime, " Unknown command letter ($sort) received from $call\n";
180 my $t = $systime - $starttime;
181 my $days = int $t / 86400;
183 my $hours = int $t / 3600;
185 my $mins = int $t / 60;
186 return sprintf "%d %02d:%02d", $days, $hours, $mins;
188 #############################################################
190 # The start of the main line of code
192 #############################################################
194 $starttime = $systime = time;
196 # open the debug file, set various FHs to be unbuffered
200 STDOUT->autoflush(1);
202 Log('cluster', "DXSpider V$version started");
205 print "DXSpider DX Cluster Version $version\nCopyright (c) 1998 Dirk Koopman G1TLH\n";
208 print "loading prefixes ...\n";
212 print "loading band data ...\n";
215 # initialise User file system
216 print "loading user file system ...\n";
217 DXUser->init($userfn);
219 # start listening for incoming messages/connects
220 print "starting listener ...\n";
221 Msg->new_server("$clusteraddr", $clusterport, \&login);
224 $SIG{'INT'} = \&cease;
225 $SIG{'TERM'} = \&cease;
226 $SIG{'HUP'} = 'IGNORE';
227 $SIG{'CHLD'} = \&reap;
229 # read in system messages
232 # read in command aliases
235 # initialise the protocol engine
238 # initialise the Geomagnetic data engine
241 # initial the Spot stuff
244 # put in a DXCluster node for us here so we can add users and take them away
245 DXNode->new(0, $mycall, 0, 1, $DXProt::myprot_version);
247 # read in any existing message headers and clean out old crap
248 print "reading existing message headers\n";
252 # read in any cron jobs
253 print "reading cron jobs\n";
256 # this, such as it is, is the main loop!
257 print "orft we jolly well go ...\n";
260 Msg->event_loop(1, 0.001);
262 process_inqueue(); # read in lines from the input queue and despatch them
264 # do timed stuff, ongoing processing happens one a second
265 if ($timenow != $systime) {
269 DXCron::process(); # do cron jobs
270 DXCommandmode::process(); # process ongoing command mode stuff
271 DXProt::process(); # process ongoing ak1a pcxx stuff
272 DXConnect::process();
275 last if --$decease <= 0;