-#!/usr/bin/perl
+#!/usr/bin/perl -w
#
# This is the DX cluster 'daemon'. It sits in the middle of its little
# web of client routines sucking and blowing data where it may.
# $Id$
#
+require 5.004;
+
# make sure that modules are searched in the order local then perl
BEGIN {
+ umask 002;
+
# root of directory tree for this system
$root = "/spider";
$root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
unshift @INC, "$root/perl"; # this IS the right way round!
unshift @INC, "$root/local";
-# require Exporter;
-# $Exporter::Verbose = 1;
+ # try to create and lock a lockfile (this isn't atomic but
+ # should do for now
+ $lockfn = "$root/perl/cluster.lock"; # lock file name
+ if (-e $lockfn) {
+ open(CLLOCK, "$lockfn") or die "Can't open Lockfile ($lockfn) $!";
+ my $pid = <CLLOCK>;
+ chomp $pid;
+ die "Lockfile ($lockfn) and process $pid exist, another cluster running?" if kill 0, $pid;
+ close CLLOCK;
+ }
+ open(CLLOCK, ">$lockfn") or die "Can't open Lockfile ($lockfn) $!";
+ print CLLOCK "$$\n";
+ close CLLOCK;
}
use Msg;
use Bands;
use Geomag;
use CmdAlias;
+use Filter;
+use Local;
+use Fcntl ':flock';
+
use Carp;
package main;
@inqueue = (); # the main input queue, an array of hashes
$systime = 0; # the time now (in seconds)
-$version = "1.13"; # the version no of the software
+$version = "1.26"; # the version no of the software
$starttime = 0; # the starting time of the cluster
-
+$lockfn = "cluster.lock"; # lock file name
+
# handle disconnections
sub disconnect
{
# is there one already connected elsewhere in the cluster (and not a cluster)
my $user = DXUser->get($call);
if ($user) {
- if ($user->sort eq 'A' && !DXCluster->get_exact($call)) {
- ;
- } elsif ($user->sort eq 'U' && $call eq $main::myalias && !DXCluster->get_exact($call)) {
+ if (($user->sort eq 'A' || $call eq $myalias) && !DXCluster->get_exact($call)) {
;
} else {
- if (DXChannel->get($call)) {
+ if (DXCluster->get($call) || DXChannel->get($call)) {
my $mess = DXM::msg($lang, $user->sort eq 'A' ? 'concluster' : 'conother', $call);
already_conn($conn, $call, $mess);
return;
}
}
+ $user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
} else {
- if (DXChannel->get($call)) {
+ if (DXCluster->get($call)) {
my $mess = DXM::msg($lang, 'conother', $call);
already_conn($conn, $call, $mess);
return;
}
- }
-
-
- # the user MAY have an SSID if local, but otherwise doesn't
- $user = DXUser->get($call);
- if (!defined $user) {
$user = DXUser->new($call);
- } else {
- $user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
}
-
+
# is he locked out ?
if ($user->lockout) {
Log('DXCommand', "$call is locked out, disconnected");
sub cease
{
my $dxchan;
+
+ $SIG{'TERM'} = 'IGNORE';
+ $SIG{'INT'} = 'IGNORE';
+
+ eval {
+ Local::finish(); # end local processing
+ };
+ dbg('local', "Local::finish error $@") if $@;
+
foreach $dxchan (DXChannel->get_all()) {
disconnect($dxchan) unless $dxchan == $DXProt::me;
}
+ Msg->event_loop(1, 0.05);
+ Msg->event_loop(1, 0.05);
+ Msg->event_loop(1, 0.05);
+ Msg->event_loop(1, 0.05);
+ DXUser::finish();
Log('cluster', "DXSpider V$version stopped");
+ unlink $lockfn;
exit(0);
}
# the reaper of children
sub reap
{
+ $SIG{'CHLD'} = \&reap;
my $cpid = wait;
}
# initialise User file system
print "loading user file system ...\n";
-DXUser->init($userfn);
+DXUser->init($userfn, 1);
# start listening for incoming messages/connects
print "starting listener ...\n";
# read in command aliases
CmdAlias->init();
-# initialise the protocol engine
-DXProt->init();
-
# initialise the Geomagnetic data engine
Geomag->init();
# initial the Spot stuff
Spot->init();
+# initialise the protocol engine
+print "reading in duplicate spot and WWV info ...\n";
+DXProt->init();
+
+
# put in a DXCluster node for us here so we can add users and take them away
DXNode->new(0, $mycall, 0, 1, $DXProt::myprot_version);
# read in any existing message headers and clean out old crap
-print "reading existing message headers\n";
+print "reading existing message headers ...\n";
DXMsg->init();
DXMsg::clean_old();
# read in any cron jobs
-print "reading cron jobs\n";
+print "reading cron jobs ...\n";
DXCron->init();
+# starting local stuff
+print "doing local initialisation ...\n";
+eval {
+ Local::init();
+};
+dbg('local', "Local::init error $@") if $@;
+
+# print various flags
+#print "useful info - \$^D: $^D \$^W: $^W \$^S: $^S \$^P: $^P\n";
+
# this, such as it is, is the main loop!
print "orft we jolly well go ...\n";
for (;;) {
DXCommandmode::process(); # process ongoing command mode stuff
DXProt::process(); # process ongoing ak1a pcxx stuff
DXConnect::process();
+ eval {
+ Local::process(); # do any localised processing
+ };
+ dbg('local', "Local::process error $@") if $@;
}
if ($decease) {
last if --$decease <= 0;
}
}
+cease(0);
+exit(0);