From 426f14e3f1e3603da38ed502193daaefbd9ed143 Mon Sep 17 00:00:00 2001
From: rudolfkoenig <>
Date: Mon, 17 Apr 2017 16:33:06 +0000
Subject: [PATCH] 16_STACKABLE.pm: add some timeout to the blocking get

git-svn-id: https://svn.fhem.de/fhem/trunk@14018 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/16_STACKABLE.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fhem/FHEM/16_STACKABLE.pm b/fhem/FHEM/16_STACKABLE.pm
index 2197b245b..caf82a80c 100644
--- a/fhem/FHEM/16_STACKABLE.pm
+++ b/fhem/FHEM/16_STACKABLE.pm
@@ -130,7 +130,9 @@ STACKABLE_IOReadFn($) # used by synchronuous get
     $me->{IODev}{PARTIAL} = "";
   }
   while($buf !~ m/\n/) {
-    $buf .= DevIo_SimpleRead($me->{IODev}); # may block
+    my $ret = DevIo_SimpleReadWithTimeout($me->{IODev}, 1); # may block
+    return undef if(!defined($ret));
+    $buf .= $ret;
   }
 
   my $mName = $me->{NAME};