Catch all ZOOM::event() return values less than 1. This includes -4

	(too many connections), which was the cause of the busy-loop
	failure when testing all targets.
Final play-out of left-over events also avoids busy looping on
	unexpected negative return-value.
Do not re-enter main loop after initial exit.

diff --git a/lib/ZOOM/IRSpy.pm b/lib/ZOOM/IRSpy.pm
index fa7606a..c0079f0 100644 (file)
--- a/lib/ZOOM/IRSpy.pm
+++ b/lib/ZOOM/IRSpy.pm
@@ -1,4 +1,4 @@
-# $Id: IRSpy.pm,v 1.61 2007-02-21 17:57:59 mike Exp $
+# $Id: IRSpy.pm,v 1.62 2007-02-22 11:51:58 mike Exp $
 
 package ZOOM::IRSpy;
 
@@ -404,11 +404,19 @@ sub check {
        my $i0 = ZOOM::event(\@conn);
        $this->log("irspy_event",
                   "ZOOM_event(", scalar(@conn), " connections) = $i0");
-       if ($i0 == -3 || $i0 == 0) {
-           # no connections left, or no events on those that remain
-           $this->log("irspy", "no events remain");
+       if ($i0 < 1) {
+           my %messages = (
+                           0 => "no events remain",
+                           -1 => "ZOOM::event() argument not a reference",
+                           -2 => "ZOOM::event() reference not an array",
+                           -3 => "no connections remain",
+                           -4 => "too many connections for ZOOM::event()",
+                           );
+           my $message = $messages{$i0} || "ZOOM::event() returned $i0";
+           $this->log("irspy", $message);
            last;
        }
+
        my $conn = $conn[$i0-1];
        my $ev = $conn->last_event();
        my $evstr = ZOOM::event_str($ev);
@@ -521,9 +529,10 @@ sub check {
     }
 
     # This really shouldn't be necessary, and in practice it rarely
-    # helps, but it's belt and braces
+    # helps, but it's belt and braces.  For now, we don't do this
+    # (hence the zero in the $nruns check).
     if (!$finished) {
-       if (++$nruns < 3) {
+       if (++$nruns < 0) {
            $this->log("irspy", "back into main loop, ${nruns}th time");
            goto ROUND_AND_ROUND_WE_GO;
        } else {
@@ -533,7 +542,7 @@ sub check {
 
     # This shouldn't happen emit anything either:
     @conn = @{ $this->{connections} };
-    while (my $i1 = ZOOM::event(\@conn)) {
+    while ((my $i1 = ZOOM::event(\@conn)) > 0) {
        my $conn = $conn[$i1-1];
        my $ev = $conn->last_event();
        my $evstr = ZOOM::event_str($ev);