cgred.init

   1 #!/bin/sh
   2 #
   3 # cgred         CGroups Rules Engine Daemon
   4 # chkconfig:    2345 02 98
   5 # description:  This is a daemon for automatically classifying processes \
   6 #               into cgroups based on UID/GID.
   7 #
   8 # processname:  cgrulesengd
   9 # pidfile:      /var/run/cgrulesengd.pid
  10 #
  11
  12 # Source function library
  13 . /etc/rc.d/init.d/functions
  14
  15 # Read in configuration options.
  16 [ -f /etc/sysconfig/cgred ] && . /etc/sysconfig/cgred
  17
  18 start() {
  19         if [ -f /var/lock/subsys/cgred ]; then
  20                 msg_already_running "CGroup Rules Engine Daemon"
  21                 return
  22         fi
  23
  24         if [ ! -s /etc/cgrules.conf ]; then
  25                 nls "CGroup Rules Engine Daemon not configured"
  26                 RETVAL=6
  27                 return
  28         fi
  29         if ! grep -qs "^cgroup" /proc/mounts; then
  30                 nls "Cannot find cgroups, is cgconfig service running?"
  31                 RETVAL=1
  32                 return
  33         fi
  34
  35         msg_starting "CGroup Rules Engine Daemon"
  36
  37         daemon --pidfile /var/run/cgrulesengd.pid /sbin/cgrulesengd $OPTIONS
  38         RETVAL=$?
  39         if [ $RETVAL -ne 0 ]; then
  40                 return 7
  41         fi
  42         touch /var/lock/subsys/cgred
  43         pidof cgrulesengd > /var/run/cgrulesengd.pid
  44 }
  45
  46 stop() {
  47         if [ ! -f /var/lock/subsys/cgred ]; then
  48                 msg_not_running "CGroup Rules Engine Daemon"
  49                 return
  50         fi
  51
  52         msg_stopping "CGroup Rules Engine Daemon"
  53         killproc --pidfile /var/run/cgrulesengd.pid cgrulesengd -TERM
  54         RETVAL=$?
  55         rm -f /var/lock/subsys/cgred /var/run/cgrulesengd.pid
  56 }
  57
  58 reload() {
  59         if [ ! -f /var/lock/subsys/cgred ] ; then
  60                 msg_not_running "CGroup Rules Engine Daemon"
  61                 return
  62         fi
  63
  64         show "Reloading rules configuration..."
  65         # SIGUSR2
  66         kill -s 12 $(cat ${pidfile})
  67         RETVAL=$?
  68         if [ $RETVAL -eq 0 ]; then
  69                 fail
  70         else
  71                 ok
  72         fi
  73 }
  74
  75 condrestart() {
  76         if [ ! -f /var/lock/subsys/cgred ]; then
  77                 msg_not_running "CGroup Rules Engine Daemon"
  78                 RETVAL=$1
  79                 return
  80         fi
  81
  82         stop
  83         start
  84 }
  85
  86 RETVAL=0
  87 # See how we are called
  88 case "$1" in
  89   start)
  90         start
  91         ;;
  92   stop)
  93         stop
  94         ;;
  95   restart)
  96         stop
  97         start
  98         ;;
  99   reload)
 100         reload
 101         ;;
 102   try-restart)
 103         condrestart 0
 104         ;;
 105   force-reload)
 106         condrestart 7
 107         ;;
 108   status)
 109         status --pidfile /var/run/cgrulesengd.pid cgrulesengd
 110         RETVAL=$?
 111         ;;
 112   *)
 113         msg_usage "$0 {start|stop|restart|try-restart|reload|force-reload|status}"
 114         exit 3
 115         ;;
 116 esac
 117
 118 exit $RETVAL