update

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12761 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/esl/perl/ESL/IVR.pm

@@ -59,6 +59,10 @@ sub playAndGetDigits($;) {
   my $self = shift;
   my ($min, $max, $tries, $to, $term, $file, $invalid_file, $var) = @_;
 
+  if (!$self->{_esl}->connected()) {
+    return undef;
+  }
+  
   $self->execute("play_and_get_digits", "$min $max $tries $to $term $file $invalid_file $var");
 
   return $self->getVar($var);
@@ -69,6 +73,10 @@ sub read($;) {
   my $self = shift;
   my ($min, $max, $file, $var, $to, $term) = @_;
   
+  if (!$self->{_esl}->connected()) {
+    return undef;
+  }
+
   $self->execute("read", "$min $max $file $var $to $term");
 
   return $self->getVar($var);
@@ -79,6 +87,10 @@ sub playback($;) {
   my $self = shift;
   my ($file) = @_;
 
+  if (!$self->{_esl}->connected()) {
+    return undef;
+  }
+
   $self->execute("playback", $file);
   return $self->getVar("playback_terminators_used");