#!/bin/bash
#
# BOINC - start and stop the BOINC client daemon on Unix
#
#  SysVInit start/stop script to run the BOINC client as a daemon at
#  system startup, as the $BOINCUSER (not root!).
#
#  This version has been modified for Fedora/RHEL.
#
###
# chkconfig: - 98 02
# description: This script starts the local BOINC client as a daemon
#         For more information about BOINC (the Berkeley Open Infrastructure
#         for Network Computing) see http://boinc.berkeley.edu
# processname: boinc-client
# config: /etc/sysconfig/boinc-client
#
### BEGIN INIT INFO
# Provides: boinc
# Required-Start: $network
# Required-Stop:  $network
# Default-Start: 
# Default-Stop: 0 1 2 6
# Short-Description: This script monitors the BOINC client.
# Description: This script starts the local BOINC client as a daemon
#         For more information about BOINC (the Berkeley Open Infrastructure
#         for Network Computing) see http://boinc.berkeley.edu
### END INIT INFO
#
# Based on the init script provided by:
# Eric Myers <myers@vassar.edu>  - 27 July 2004
# Department of Physics and Astronomy, Vassar College, Poughkeepsie NY
# Eric Myers <myers@spy-hill.net> 
# Spy Hill Research, Poughkeepsie, New York
#
# Rewritten by Milos Jakubicek <xjakub@fi.muni.cz> - 10 March 2009
# Faculty of Informatics, Masaryk University Brno, Czech Republic
########################################################################

# Defaults, which can be overridden by putting new NAME=value lines 
# in /etc/sysconfig/boinc-client

# Name of user to run as:

BOINCUSER=boinc

# Working directory.

BOINCDIR="/var/lib/boinc"

# Name of the client executable.

BOINCEXE="/usr/bin/boinc_client"
BOINCCMD="/usr/bin/boinccmd"

# Cgroup to be used: this is necessary to ensure low scheduling priority for Boinc

CGROUP_DAEMON="cpu:/background"

# Log and error files (should be placed in /var/log/ to avoid SELinux related issues)

LOGFILE="/var/log/boinc.log"
ERRORLOG="/var/log/boincerr.log"

# BOINC options: for the command line when running the client.  

BOINCOPTS=

# Service name

prog=boinc-client

# Subsys lock file

LOCKFILE="/var/lock/subsys/$prog"

# Init script function library.

. /etc/rc.d/init.d/functions

# Look for any local configuration settings which override all above

[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog

# Verify the $BOINCDIR working directory exists

if [ ! -d $BOINCDIR ]; then
	echo -n "Cannot find BOINC directory $BOINCDIR"
	echo_failure
	echo 
	exit 7
fi

# Verify the $BOINCEXE executable exists

if [ ! -x $BOINCEXE ]; then
	echo -n "Cannot find an executable for the BOINC client."
	echo_failure
	echo 
	exit 2
fi

# Create cgroup and set minimum CPU priority

cgcreate -g $CGROUP_DAEMON
cgset -r cpu.shares=2 `echo $CGROUP_DAEMON | cut -f2 -d:`

# Warn if there are no projects attached

cd $BOINCDIR
if [ ! -d projects ] ; then
	echo -n "BOINC client requires initialization (no projects attached)."
	echo_warning
	echo 
fi

check_status() {
	status $BOINCEXE >& /dev/null
}

start() {
	check_status && exit 0
	echo -n $"Starting $prog: "
	
	# Check that we're a privileged user
	if [ `id -u` != 0 ] ; then
		echo -n "Insufficient rights."
		failure
		echo
		exit 4
	fi

	# Check that log files exist, otherwise create them with proper ownership
	if [ ! -e $LOGFILE ]; then
		touch $LOGFILE && chown $BOINCUSER:$BOINCUSER $LOGFILE
	fi
	if [ ! -e $ERRORLOG ]; then
		touch $ERRORLOG && chown $BOINCUSER:$BOINCUSER $ERRORLOG
	fi

	daemon --check $BOINCEXE --user $BOINCUSER +10 "$BOINCEXE $BOINCOPTS --dir $BOINCDIR >>$LOGFILE 2>>$ERRORLOG &" >& /dev/null
	
	# Check that boinc is running, give it a few tries
	TRY=0
	while [ $TRY -lt 10 ] ; do
		check_status && { touch $LOCKFILE; success; echo; return; } || sleep 1
		let TRY+=1
        done;
	check_status && { touch $LOCKFILE; success; } || failure
	echo
}

stop() {
	cd $BOINCDIR
	check_status || exit 0
	echo -n $"Stopping $prog: "
	killproc -d 10 $BOINCEXE
	rm -f $LOCKFILE
	echo 
}

reload() {
	check_status || { start; exit; }
	action "Reading configuration: " $BOINCCMD --read_cc_config | sed -e "s/retval.*//" -e "N;s/\n//;"
}

restart() {
	stop
	start
}

case "$1" in
  start) 
	$1 
	;;
  stop)
	$1
	;;
  reload)
	$1
	;;
  restart)
	$1
	;;
  force-reload)
  	reload
	restart
  	;;
  condrestart|try-restart)
  	check_status || exit 0
	restart
  	;;
  status)
	status $BOINCEXE
	;;
  *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
        exit 2
esac

exit $?