From e4fd97e0cb7103403478333537020b02fc9006c9 Mon Sep 17 00:00:00 2001
From: hjr <>
Date: Sun, 24 Dec 2017 15:12:36 +0000
Subject: [PATCH] contrib/fhem_watchdog.sh: Simple watchdog solution to monitor
 fhem on Linux.

git-svn-id: https://svn.fhem.de/fhem/trunk@15681 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/contrib/fhem_watchdog.sh | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 fhem/contrib/fhem_watchdog.sh

diff --git a/fhem/contrib/fhem_watchdog.sh b/fhem/contrib/fhem_watchdog.sh
new file mode 100644
index 000000000..837aff3d5
--- /dev/null
+++ b/fhem/contrib/fhem_watchdog.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+#
+# $Id$
+#
+# Simple watchdog solution to monitor and restart fhem on Linux.
+#
+# Add this define to the fhem configuration:
+#  define at_FhemPulse at +*00:10 {system("/bin/date +%s > /opt/fhem/log/fhem_pulse.log")}
+#
+# Add a cron job that runs every ten minutes -> crontab -e
+#  */10 * * * * /opt/fhem/contrib/fhem_watchdog.sh
+
+
+LOGFILE="/opt/fhem/log/fhem_pulse.log"
+
+if [ `systemctl status fhem|grep inactive|wc -l` -eq "0" ]; then
+  # fhem service was started
+  
+  if [ ! -e "${LOGFILE}" ]; then
+    # There is no pulse log file
+    systemctl restart fhem
+    exit 0
+  fi
+  if [ $(expr $(/bin/date +%s) - $(cat ${LOGFILE})) -gt 900 ]; then
+    # Last pulse is older than 15min.
+    systemctl restart fhem
+    exit 0
+  fi
+fi
+
+exit 0
+