--- projects/cms/source/host/ihost-perl/ihost.pl	2001/01/26 17:41:48	1.5
+++ projects/cms/source/host/ihost-perl/ihost.pl	2001/02/01 09:10:52	1.11
@@ -1,4 +1,4 @@
-#!/usr/local/bin/perl -w
+#!/usr/bin/perl -w
 
 # -----------------------------------------------------------
 # Perl i-scream Host.
@@ -9,7 +9,7 @@
 #  - pjm2@ukc.ac.uk
 #
 # $Author: pjm2 $
-# $Id: ihost.pl,v 1.5 2001/01/26 17:41:48 pjm2 Exp $
+# $Id: ihost.pl,v 1.11 2001/02/01 09:10:52 pjm2 Exp $
 #------------------------------------------------------------
 
 $| = 1;
@@ -48,15 +48,25 @@ $seq_no = 1;
 $last_udp_time = time;
 $last_tcp_time = time;
 while (1) {
-    if (time >= $last_udp_time + $udp_update_time) {
+    my($time) = time;
+    if ($time >= $last_udp_time + $udp_update_time) {
         &send_udp_packet();
-        $last_udp_time = time;
+        $last_udp_time = $time;
     }
-    if (time >= $last_tcp_time + $tcp_update_time) {
+    if ($time >= $last_tcp_time + $tcp_update_time) {
         &send_tcp_heartbeat();
-        $last_tcp_time = time;
+        $last_tcp_time = $time;
     }
-    `sleep 1`;
+    my($next_udp) = $udp_update_time - $time + $last_udp_time;
+    my($next_tcp) = $tcp_update_time - $time + $last_tcp_time;
+    my($delay);
+    if ($next_udp < $next_tcp) {
+        $delay = $next_udp
+    }
+    else {
+        $delay = $next_tcp;
+    }
+    `sleep $delay`;
 }
 
 exit(0);
@@ -67,10 +77,14 @@ sub tcp_configure() {
                                      PeerAddr => $filter_manager_addr,
                                      PeerPort => $filter_manager_port,
                                      Proto => 'tcp'
-                                    ) or die "Could not perform configuration via TCP: $!\n";
+                                    );
+    if (!defined $sock) {
+        print "IHOST ERROR: Could not connect to $filter_manager_addr:$filter_manager_port.\n";
+        print "Please check that there is an i-scream server at this address.\n";
+        print "Program ended.\n";
+        exit(1);
+    }
 
-    die "Could not connect to the i-scream filter manager: $!\n" unless $sock;
-
     # Now run through the configuration process.
     my($response);
     
@@ -88,7 +102,7 @@ sub tcp_configure() {
     chop $response;
     $last_modified = $response;
     
-    print "Config last modified: ". scalar localtime $last_modified . "\n";
+    print "Config last modified: ". (scalar localtime $last_modified/1000) . "\n";
 
     print $sock "FILELIST\n";
     $response = <$sock>;
@@ -107,7 +121,7 @@ sub tcp_configure() {
     chop $response;
     $tcp_update_time = $response;
     
-    print "UDP packet period: $udp_update_time seconds.\nTCP heartbeat period: $tcp_update_time.\n";
+    print "UDP packet period: $udp_update_time seconds.\nTCP heartbeat period: $tcp_update_time seconds.\n";
 
     print $sock "ENDCONFIG\n";
     $response = <$sock>;
@@ -170,8 +184,8 @@ sub send_udp_packet() {
 
     my($hostname) = hostname();
     $hostname =~ s/\..*$//g;
-    my($domainname) = `cat /etc/resolv.conf`;
-    $domainname =~ s/domain\s*([^\s]*?)/$1/;
+    `cat /etc/resolv.conf` =~ /domain\s+([^\s]+)/;
+    my($domainname) = $1;
     my($machine_name) = "$hostname.$domainname";
     my($ip) = inet_ntoa(scalar(gethostbyname($hostname)) || 'localhost');
 
@@ -191,6 +205,7 @@ sub send_udp_packet() {
         <platform>$packet{"packet.os.platform"}</platform>
         <sysname>$packet{"packet.os.sysname"}</sysname>
         <version>$packet{"packet.os.version"}</version>
+        <uptime>$packet{"packet.os.uptime"}</uptime>
     </os>
     <users>
         <count>$packet{"packet.users.count"}</count>
@@ -243,9 +258,11 @@ sub send_tcp_heartbeat() {
                                      PeerAddr => $filter_addr,
                                      PeerPort => $tcp_port,
                                      Proto => 'tcp'
-                                    ) or die "Could not perform heartbeat via TCP: $!\n";
-
-    die "Could not connect to the i-scream filter: $!\n" unless $sock;
+                                    );
+    if (!defined $sock) {
+        print "IHOST WARNING: Failed to deliver a heartbeat to the i-scream filter.\n";
+        return;
+    }
 
     # Now run through the configuration process.
     my($response);