From 7b81c079f6162a9ccb998b8a1ce38b6e24a16a6e Mon Sep 17 00:00:00 2001
From: Bart Van Der Meerssche <bart.vandermeerssche@flukso.net>
Date: Sun, 17 Apr 2011 22:08:56 +0200
Subject: [PATCH] [fluksod] add a crontab entry that checks up on the daemon
 every 15min

---
 mote/v2/openwrt/package/flukso/Makefile       |  4 ++++
 .../openwrt/package/flukso/config/fcheck.sh   | 24 +++++++++++++++++++
 .../openwrt/package/flukso/config/flukso.init | 12 ++++++++++
 3 files changed, 40 insertions(+)
 create mode 100755 mote/v2/openwrt/package/flukso/config/fcheck.sh

diff --git a/mote/v2/openwrt/package/flukso/Makefile b/mote/v2/openwrt/package/flukso/Makefile
index 9ea9407..0edf328 100644
--- a/mote/v2/openwrt/package/flukso/Makefile
+++ b/mote/v2/openwrt/package/flukso/Makefile
@@ -51,15 +51,19 @@ define Package/flukso/install
 	$(INSTALL_DATA) $(PKG_BUILD_DIR)/rrd/*.lua $(1)/usr/lib/lua/rrd/
 	$(INSTALL_DIR) $(1)/usr/lib/lua/flukso
 	$(INSTALL_DATA) $(PKG_BUILD_DIR)/flukso/*.lua $(1)/usr/lib/lua/flukso/
+
 	$(INSTALL_DIR) $(1)/usr/sbin
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/luad $(1)/usr/sbin/
 	$(LN) /usr/sbin/luad $(1)/usr/sbin/fluksod
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/fluksod.lua $(1)/usr/sbin/
 	$(LN) /usr/sbin/luad $(1)/usr/sbin/spid
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/spid.lua $(1)/usr/sbin/
+
 	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/heartbeat.lua $(1)/usr/bin/heartbeat
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/fsync.lua $(1)/usr/bin/fsync
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/fdude.lua $(1)/usr/bin/fdude
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/fcheck.sh $(1)/usr/bin/fcheck
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/restful.lua $(1)/usr/bin/restful
 endef
 
diff --git a/mote/v2/openwrt/package/flukso/config/fcheck.sh b/mote/v2/openwrt/package/flukso/config/fcheck.sh
new file mode 100755
index 0000000..6aaceb7
--- /dev/null
+++ b/mote/v2/openwrt/package/flukso/config/fcheck.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+#  fcheck - Check whether the Flukso daemon components are still running.
+#
+#  Copyright (C) 2011 Bart Van Der Meerssche <bart.vandermeerssche@flukso.net>
+#
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+[ -z "$(ps | grep 'spi[d]')" ] && exit 1
+[ -z "$(ps | grep 'flukso[d]')" ] && exit 2
+
+exit 0
diff --git a/mote/v2/openwrt/package/flukso/config/flukso.init b/mote/v2/openwrt/package/flukso/config/flukso.init
index 18a6d75..fadc152 100755
--- a/mote/v2/openwrt/package/flukso/config/flukso.init
+++ b/mote/v2/openwrt/package/flukso/config/flukso.init
@@ -35,10 +35,22 @@ start()
 
 	/usr/sbin/spid
 	/usr/sbin/fluksod
+
+	HEARTBEAT=/usr/bin/heartbeat
+	FCHECK=/usr/bin/fcheck
+	MINUTE=$(date '+%M')
+
+	# Tell the server we've had a reset
+	$HEARTBEAT 1 >&- 2>&- <&-
+
+	# Configure cron
+	echo -e "$MINUTE * * * * $HEARTBEAT 0\n*/15 * * * * [ \$($FCHECK; echo \$?) -ne 0 ] && reboot" | crontab -
 }
 
 stop()
 {
+	crontab -r
+
 	/usr/sbin/fluksod -k
 	/usr/sbin/spid -k