From f2d0321eab442f995c35a8c9a117292d5be10ec4 Mon Sep 17 00:00:00 2001
From: Turbo Fredriksson <turbo@bayour.com>
Date: Wed, 5 Feb 2014 18:02:10 +0100
Subject: [PATCH] Create a ZED init script

---
 etc/init.d/.gitignore  |   1 +
 etc/init.d/Makefile.am |  13 +++-
 etc/init.d/zed.in      | 150 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 163 insertions(+), 1 deletion(-)
 create mode 100755 etc/init.d/zed.in

diff --git a/etc/init.d/.gitignore b/etc/init.d/.gitignore
index 73304bc2cd4a..8da53039362b 100644
--- a/etc/init.d/.gitignore
+++ b/etc/init.d/.gitignore
@@ -1 +1,2 @@
 zfs
+zed
diff --git a/etc/init.d/Makefile.am b/etc/init.d/Makefile.am
index 72093484c477..2d89d25beb5a 100644
--- a/etc/init.d/Makefile.am
+++ b/etc/init.d/Makefile.am
@@ -1,5 +1,7 @@
 initdir = $(DEFAULT_INIT_DIR)
 init_SCRIPTS = zfs
+zeddir = $(DEFAULT_INIT_DIR)
+zed_SCRIPTS = zed
 
 EXTRA_DIST = \
 	$(top_srcdir)/etc/init.d/zfs.fedora.in \
@@ -17,5 +19,14 @@ $(init_SCRIPTS):
 		-e 's,@initdir\@,$(initdir),g' \
 		'$@.$(DEFAULT_INIT_SCRIPT).in' >'$@'
 
+$(zed_SCRIPTS):
+	-$(SED) -e 's,@bindir\@,$(bindir),g' \
+		-e 's,@sbindir\@,$(sbindir),g' \
+		-e 's,@udevdir\@,$(udevdir),g' \
+		-e 's,@udevruledir\@,$(udevruledir),g' \
+		-e 's,@sysconfdir\@,$(sysconfdir),g' \
+		-e 's,@initdir\@,$(initdir),g' \
+		'$@.in' >'$@'
+
 distclean-local::
-	-$(RM) $(init_SCRIPTS)
+	-$(RM) $(init_SCRIPTS) $(zed_SCRIPTS)
diff --git a/etc/init.d/zed.in b/etc/init.d/zed.in
new file mode 100755
index 000000000000..cea3bab11916
--- /dev/null
+++ b/etc/init.d/zed.in
@@ -0,0 +1,150 @@
+#!/bin/sh
+
+### BEGIN INIT INFO
+# Provides:          zed zeventd
+# Required-Start:    zfs
+# Required-Stop:     zfs
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: ZFS Event Daemon
+# Description:       zed monitors ZFS events. When a zevent is posted, zed
+#                    will run any scripts that have been enabled for the
+#                    corresponding zevent class.
+### END INIT INFO
+
+# Author: Turbo Fredriksson <turbo@bayour.com>
+
+PATH=/sbin:/usr/sbin:/bin:/usr/bin
+DESC="ZFS Event Daemon"
+NAME=zed
+DAEMON=@sbindir@/$NAME
+DAEMON_ARGS=""
+PIDFILE=/var/run/$NAME.pid
+SCRIPTNAME=/etc/init.d/$NAME
+
+# Exit if the package is not installed
+[ -x "$DAEMON" ] || exit 0
+
+# Read configuration variable file if it is present
+[ -r /etc/default/$NAME ] && . /etc/default/$NAME
+
+# Load the VERBOSE setting and other rcS variables
+. /lib/init/vars.sh
+
+# Define LSB log_* functions.
+# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
+# and status_of_proc is working.
+. /lib/lsb/init-functions
+
+#
+# Function that starts the daemon/service
+#
+do_start()
+{
+	# Return
+	#   0 if daemon has been started
+	#   1 if daemon was already running
+	#   2 if daemon could not be started
+	start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
+		|| return 1
+	start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
+		$DAEMON_ARGS \
+		|| return 2
+	# Add code here, if necessary, that waits for the process to be ready
+	# to handle requests from services started subsequently which depend
+	# on this one.  As a last resort, sleep for some time.
+}
+
+#
+# Function that stops the daemon/service
+#
+do_stop()
+{
+	# Return
+	#   0 if daemon has been stopped
+	#   1 if daemon was already stopped
+	#   2 if daemon could not be stopped
+	#   other if a failure occurred
+	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
+	RETVAL="$?"
+	[ "$RETVAL" = 2 ] && return 2
+	# Wait for children to finish too if this is a daemon that forks
+	# and if the daemon is only ever run from this initscript.
+	# If the above conditions are not satisfied then add some other code
+	# that waits for the process to drop all resources that could be
+	# needed by services started subsequently.  A last resort is to
+	# sleep for some time.
+	start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
+	[ "$?" = 2 ] && return 2
+	# Many daemons don't delete their pidfiles when they exit.
+	rm -f $PIDFILE
+	return "$RETVAL"
+}
+
+#
+# Function that sends a SIGHUP to the daemon/service
+#
+do_reload() {
+	#
+	# If the daemon can reload its configuration without
+	# restarting (for example, when it is sent a SIGHUP),
+	# then implement that here.
+	#
+	start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
+	return 0
+}
+
+case "$1" in
+  start)
+	[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
+	do_start
+	case "$?" in
+		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
+		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
+	esac
+	;;
+  stop)
+	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
+	do_stop
+	case "$?" in
+		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
+		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
+	esac
+	;;
+  status)
+	status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
+	;;
+  reload)
+	log_daemon_msg "Reloading $DESC" "$NAME"
+	do_reload
+	log_end_msg $?
+	;;
+  restart)
+	#
+	# If the "reload" option is implemented then remove the
+	# 'force-reload' alias
+	#
+	log_daemon_msg "Restarting $DESC" "$NAME"
+	do_stop
+	case "$?" in
+	  0|1)
+		do_start
+		case "$?" in
+			0) log_end_msg 0 ;;
+			1) log_end_msg 1 ;; # Old process is still running
+			*) log_end_msg 1 ;; # Failed to start
+		esac
+		;;
+	  *)
+		# Failed to stop
+		log_end_msg 1
+		;;
+	esac
+	;;
+  *)
+	echo "Usage: $SCRIPTNAME {start|stop|status|restart|reload}" >&2
+	exit 3
+	;;
+esac
+
+: