doc/rc.d/init.d/silhouetted

   1 #!/bin/bash
   2 #
   3 # silhouetted  The startup script for the Pysilhouette system.
   4 #
   5 # chkconfig: 2345 97 03
   6 # description: Pysilhouette is an application running in the background system.
   7 #
   8 # processname: silhouetted
   9 # config: /etc/sysconfig/silhouetted
  10 # pidfile: /var/run/silhouetted.pid
  11 #          /var/run/schedulerd.pid
  12 #          /var/run/performerd.pid
  13 # lockfile: /var/lock/subsys/silhouetted
  14 #           /var/lock/subsys/schedulerd
  15 #           /var/lock/subsys/performerd
  16
  17 source /etc/rc.d/init.d/functions
  18 source /etc/sysconfig/network
  19
  20 # For SELinux we need to use 'runuser' not 'su'
  21 if [ -x /sbin/runuser ]; then
  22     SU=runuser
  23 else
  24     SU=su
  25 fi
  26
  27 # Check that networking is up.
  28 [ ${NETWORKING} = "no" ] && exit 1
  29
  30 #Default value
  31 prog="silhouette"
  32 progd="silhouetted"
  33 app="pysilhouette"
  34 sch_progd='schedulerd'
  35 per_progd='performerd'
  36
  37 sysconfig="/etc/sysconfig/${progd}"
  38
  39 # Read configuration
  40 [ -r "${sysconfig}" ] && source "${sysconfig}"
  41
  42 if [ "x${PYTHON}" == "x" ]; then
  43   PYTHON=`which python`
  44 fi
  45
  46 # Config file.
  47 conf="/etc/opt/${app}/${prog}.conf"
  48
  49 # Process id file.
  50 pidfile="/var/run/${progd}.pid"
  51 lockfile="/var/lock/subsys/${progd}"
  52 sch_pidfile="/var/run/${sch_progd}.pid"
  53 sch_lockfile="/var/lock/subsys/${sch_progd}"
  54 per_pidfile="/var/run/${per_progd}.pid"
  55 per_lockfile="/var/lock/subsys/${per_progd}"
  56
  57 # Daemon mode.
  58 extra_args=""
  59 if [ "x${DAEMON}" = "xyes" ]; then
  60     extra_args=${extra_args}" -d"
  61 fi
  62
  63 # Debug mode.
  64 if [ "x${DEBUG}" = "xyes" ]; then
  65     extra_args=${extra_args}" -v"
  66 fi
  67
  68 desc="${progd} (Daemon)"
  69
  70 # options
  71 CMD_ARGS="-p ${pidfile} -c ${conf} ${extra_args}"
  72
  73
  74 start() {
  75     echo -n $"Starting $desc: "
  76     if [ -e ${pidfile} ]; then
  77             echo "already running..."
  78             return 1
  79     fi
  80
  81     touch ${pidfile} ${sch_pidfile} ${per_pidfile}
  82     chown ${USER}:${GROUP} ${pidfile} ${sch_pidfile} ${per_pidfile}
  83     if [ "x${PYTHON_SEARCH_PATH}" != "x" ]; then
  84         env="PYTHONPATH=${PYTHON_SEARCH_PATH}:\$PYTHONPATH"
  85     fi
  86     ${SU} -l ${USER} -c "${env} ${PYTHON} ${PREFIX}/opt/pysilhouette/bin/${prog}.py ${CMD_ARGS}"
  87     RETVAL=$?
  88     if [ ${RETVAL} -eq 0 ]; then
  89         touch ${lockfile} ${sch_lockfile} ${per_lockfile}
  90         success
  91     else
  92         failure
  93         stop
  94     fi
  95     echo ""
  96     return ${RETVAL}
  97 }
  98
  99 silhouetted_stop() {
 100     echo -n $"Shutting down $desc: "
 101     if [ ! -e ${pidfile} ]; then
 102         echo "not running..."
 103         return 1
 104     fi
 105     pid=`cat ${pidfile}`
 106     if [ "x${pid}" == "x" ]; then
 107         echo "not running... - not pid"
 108         rm -f ${pidfile}
 109         return 1
 110     fi
 111     killproc -p ${pidfile} -15
 112     echo
 113     RETVAL=$?
 114     return ${RETVAL}
 115 }
 116
 117 stop() {
 118     silhouetted_stop
 119     SIL_RETVAL=$?
 120     if [ ${SIL_RETVAL} -eq 0 ]; then
 121         rm -f ${lockfile}
 122         rm -f ${pidfile}
 123     fi
 124     eval "/etc/rc.d/init.d/${sch_progd} stop"
 125     SCH_RETVAL=$?
 126     if [ ${SCH_RETVAL} -eq 0 ]; then
 127         rm -f ${sch_lockfile}
 128         rm -f ${sch_pidfile}
 129     fi
 130     eval "/etc/rc.d/init.d/${per_progd} stop"
 131     PER_RETVAL=$?
 132     if [ ${PER_RETVAL} -eq 0 ]; then
 133         rm -f ${per_lockfile}
 134         rm -f ${per_pidfile}
 135     fi
 136     # The return code of the performer daemon is the first digit.
 137     # The return code of the scheduler daemon is the second digit.
 138     # The return code of the silhouetted daemon is the third digit.
 139     # All stop functions return only the exit code of 0(Normal) or 1(Abnormal).
 140     RETVAL=`expr ${SIL_RETVAL} \* 100 + ${SCH_RETVAL} \* 10 + ${PER_RETVAL}`
 141     return ${RETVAL}
 142 }
 143
 144 restart() {
 145     stop
 146     sleep 1
 147     start
 148 }
 149
 150
 151 case "$1" in
 152     start)
 153         start
 154         ;;
 155     stop)
 156         stop
 157         ;;
 158     restart|reload)
 159         restart
 160         ;;
 161     condrestart)
 162         [ -e ${lockfile} ] && restart
 163         RETVAL=$?
 164         ;;
 165     status)
 166         status ${progd}
 167     eval "/etc/rc.d/init.d/${sch_progd} status"
 168     eval "/etc/rc.d/init.d/${per_progd} status"
 169         RETVAL=$?
 170         ;;
 171     *)
 172         echo $"Usage: $0 {start|stop|restart|condrestart|status}"
 173         RETVAL=1
 174 esac
 175
 176 exit $RETVAL