--- projects/cms/source/host/ihost-perl/ihost.pl	2001/01/29 09:04:18	1.7
+++ projects/cms/source/host/ihost-perl/ihost.pl	2001/01/29 16:51:50	1.9
@@ -9,7 +9,7 @@
 #  - pjm2@ukc.ac.uk
 #
 # $Author: pjm2 $
-# $Id: ihost.pl,v 1.7 2001/01/29 09:04:18 pjm2 Exp $
+# $Id: ihost.pl,v 1.9 2001/01/29 16:51:50 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);
@@ -170,9 +180,8 @@ sub send_udp_packet() {
 
     my($hostname) = hostname();
     $hostname =~ s/\..*$//g;
-    my($domainname) = `cat /etc/resolv.conf`;
-    $domainname =~ /domain\s+([^\s]+)/;
-    $domainname = $1;
+    `cat /etc/resolv.conf` =~ /domain\s+([^\s]+)/;
+    my($domainname) = $1;
     my($machine_name) = "$hostname.$domainname";
     my($ip) = inet_ntoa(scalar(gethostbyname($hostname)) || 'localhost');