From 9dbe8d3ddbbe7ddd88c1ba9a494932d42e8842fa Mon Sep 17 00:00:00 2001
From: markusbloch <markusbloch@2b470e98-0d58-463d-a4d8-8e2adae1ed80>
Date: Thu, 15 Aug 2013 09:57:35 +0000
Subject: [PATCH] avoid 100% cpu usage, die when PID file cannot be created

git-svn-id: https://svn.fhem.de/fhem/trunk@3702 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/contrib/PRESENCE/presenced | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fhem/contrib/PRESENCE/presenced b/fhem/contrib/PRESENCE/presenced
index e0672f3fa..33e5321f0 100755
--- a/fhem/contrib/PRESENCE/presenced
+++ b/fhem/contrib/PRESENCE/presenced
@@ -118,7 +118,7 @@ if($opt_h)
 }
 
 
-open(PIDFILE, ">$opt_P");
+open(PIDFILE, ">$opt_P") or die("Could not open PID file $opt_P: $!");
 print PIDFILE $$."\n";
 close PIDFILE;
 
@@ -380,7 +380,7 @@ local $SIG{HUP} = sub {$nextrun = gettimeofday();};
 				    }
 				}
 	
-			
+			sleep 0.1;
 		}
 	}
 }