Update: after explicitelly triggering the Event loop after each write to the pipes, things seem to work fine. I will make a more detailed check this evening. 

sub testSequence ()
{
   my $appControlFifo;
   my $deviceControlFifo; 
   if ('' eq (-p "$sm->{config}->{deviceControl}" ))
   {
      POSIX::mkfifo ("$sm->{config}->{deviceControl}", 0700);
   }
  # shorthands for pipe handles
   open ($appControlFifo, "+>", $sm->{config}->{fifoControl}->{control
+}) || die "Could not open status pipe for writing ($!)\n";
   open ($deviceControlFifo, "+>", $sm->{config}->{deviceControl}) || 
+die "Could not open status pipe for writing ($!)\n";
   $| = 1;
   $appControlFifo->autoflush(1);
   $deviceControlFifo->autoflush(1);
   # test sequence
   print $appControlFifo "connect to device\n"; # state transition: 01
+ -> 02, currently automatically set
   Event::one_event();
   print $deviceControlFifo "^MODE:1,1\n";      # state transition: 02
+ -> 03
   Event::one_event();
   print "State Instance:>>> " . $sm->Instance() . "\n";
   if ($sm->Instance() =~ "Statemachine::03")   # check if transition 
+succeeded (kind of ASSERT)
   {
      print "transition succeeded\n";
   }
   print $appControlFifo "connect to internet\n"; # state transition: 
+03 -> 04
   Event::one_event();
   print $appControlFifo "internet connected\n"; # state transition: 0
+3 -> 04
   Event::one_event();
}

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In reply to Re^3: testing of named pipes by lalu
in thread testing of named pipes by lalu

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