basically working OK

[spider.git] / perl / Investigate.pm

diff --git a/perl/Investigate.pm b/perl/Investigate.pm
new file mode 100644 (file)
index 0000000..8db4c35
--- /dev/null
+++ b/perl/Investigate.pm
@@ -0,0 +1,70 @@
+#
+# Investigate whether an external node is accessible
+#
+# If it is, make it believable otherwise mark as not
+# to be believed. 
+#
+# It is possible to store up state for a node to be 
+# investigated, so that if it is accessible, its details
+# will be passed on to whomsoever might be interested.
+#
+# Copyright (c) 2004 Dirk Koopman, G1TLH
+#
+# $Id$
+#
+
+use strict;
+
+package Investigate;
+
+use DXDebug;
+use DXUtil;
+
+
+use vars qw($VERSION $BRANCH);
+$VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
+$BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0));
+$main::build += $VERSION;
+$main::branch += $BRANCH;
+
+use vars qw (%list %valid);
+
+%list = ();                                            # the list of outstanding investigations
+%valid = (                                             # valid fields
+                 call => '0,Callsign',
+                 start => '0,Started at,atime',
+                 version => '0,Node Version',
+                 build => '0,Node Build',
+                 here => '0,Here?,yesno',
+                 conf => '0,In Conf?,yesno',
+                );
+
+
+sub new
+{
+       my $pkg = shift;
+       my $call = shift;
+       my $self = $list{$call} || bless { call=>$call, start=>$main::systime }, ref($pkg) || $pkg;
+       return $self;
+}
+
+sub get
+{
+       return $list{$_[0]};
+}
+
+sub AUTOLOAD
+{
+       no strict;
+       my $name = $AUTOLOAD;
+       return if $name =~ /::DESTROY$/;
+       $name =~ s/^.*:://o;
+  
+       confess "Non-existant field '$AUTOLOAD'" if !$valid{$name};
+
+       # this clever line of code creates a subroutine which takes over from autoload
+       # from OO Perl - Conway
+       *$AUTOLOAD = sub {@_ > 1 ? $_[0]->{$name} = $_[1] : $_[0]->{$name}};
+       goto &$AUTOLOAD;
+}
+1;