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 #          /var/run/asynperformerd.pid
  14 #          /var/run/asynschedulerd.pid
  15 #
  16 # lockfile: /var/lock/subsys/silhouetted
  17 #           /var/lock/subsys/schedulerd
  18 #           /var/lock/subsys/performerd
  19 #           /var/lock/subsys/asynperformerd
  20 #           /var/lock/subsys/asynschedulerd
  21 #
  22
  23 source /etc/rc.d/init.d/functions
  24 source /etc/sysconfig/network
  25
  26 # For SELinux we need to use 'runuser' not 'su'
  27 if [ -x /sbin/runuser ]; then
  28     SU=runuser
  29 else
  30     SU=su
  31 fi
  32
  33 # Check that networking is up.
  34 [ ${NETWORKING} = "no" ] && exit 1
  35
  36 #Default value
  37 prog="silhouette"
  38 progd="silhouetted"
  39 app="pysilhouette"
  40 sch_progd='schedulerd'
  41 per_progd='performerd'
  42 asyn_sch_progd='asynschedulerd'
  43 asyn_per_progd='asynperformerd'
  44
  45 sysconfig="/etc/sysconfig/${progd}"
  46
  47 # Read configuration
  48 [ -r "${sysconfig}" ] && source "${sysconfig}"
  49
  50 if [ "x${PYTHON}" == "x" ]; then
  51   PYTHON=`which python`
  52 fi
  53
  54 # Config file.
  55 conf="/etc/opt/${app}/${prog}.conf"
  56
  57 # Process id file.
  58 pidfile="/var/run/${progd}.pid"
  59 lockfile="/var/lock/subsys/${progd}"
  60 sch_pidfile="/var/run/${sch_progd}.pid"
  61 sch_lockfile="/var/lock/subsys/${sch_progd}"
  62 per_pidfile="/var/run/${per_progd}.pid"
  63 per_lockfile="/var/lock/subsys/${per_progd}"
  64 asyn_sch_pidfile="/var/run/${asyn_sch_progd}.pid"
  65 asyn_sch_lockfile="/var/lock/subsys/${asyn_sch_progd}"
  66 asyn_per_pidfile="/var/run/${asyn_per_progd}.pid"
  67 asyn_per_lockfile="/var/lock/subsys/${asyn_per_progd}"
  68
  69 # Daemon mode.
  70 extra_args=""
  71 if [ "x${DAEMON}" = "xyes" ]; then
  72     extra_args=${extra_args}" -d"
  73 fi
  74
  75 # Debug mode.
  76 if [ "x${DEBUG}" = "xyes" ]; then
  77     extra_args=${extra_args}" -v"
  78 fi
  79
  80 desc="${progd} (Daemon)"
  81
  82 # options
  83 CMD_ARGS="-p ${pidfile} -c ${conf} ${extra_args}"
  84
  85
  86 start() {
  87     echo -n $"Starting $desc: "
  88     if [ -e ${pidfile} ]; then
  89             echo "already running..."
  90             return 1
  91     fi
  92
  93     touch ${pidfile} ${sch_pidfile} ${per_pidfile} ${asyn_sch_pidfile} ${asyn_per_pidfile}
  94     chown ${USER}:${GROUP} ${pidfile} ${sch_pidfile} ${per_pidfile} ${asyn_sch_pidfile} ${asyn_per_pidfile}
  95     if [ "x${PYTHON_SEARCH_PATH}" != "x" ]; then
  96         env="PYTHONPATH=${PYTHON_SEARCH_PATH}:\$PYTHONPATH"
  97     fi
  98     ${SU} -l ${USER} -c "${env} ${PYTHON} ${PREFIX}/opt/pysilhouette/bin/${prog}.py ${CMD_ARGS}"
  99     RETVAL=$?
 100     if [ ${RETVAL} -eq 0 ]; then
 101         touch ${lockfile} ${sch_lockfile} ${per_lockfile} ${asyn_sch_lockfile} ${asyn_per_lockfile}
 102         success
 103     else
 104         failure
 105         stop
 106     fi
 107     echo ""
 108     return ${RETVAL}
 109 }
 110
 111 silhouetted_stop() {
 112     echo -n $"Shutting down $desc: "
 113     if [ ! -e ${pidfile} ]; then
 114         echo "not running..."
 115         return 1
 116     fi
 117     pid=`cat ${pidfile}`
 118     if [ "x${pid}" == "x" ]; then
 119         echo "not running... - not pid"
 120         rm -f ${pidfile}
 121         return 1
 122     fi
 123     killproc -p ${pidfile} -15
 124     echo
 125     RETVAL=$?
 126     return ${RETVAL}
 127 }
 128
 129 stop() {
 130     silhouetted_stop
 131     SIL_RETVAL=$?
 132     if [ ${SIL_RETVAL} -eq 0 ]; then
 133         rm -f ${lockfile}
 134         rm -f ${pidfile}
 135     fi
 136
 137     # scheduler
 138     eval "/etc/rc.d/init.d/${sch_progd} stop"
 139     SCH_RETVAL=$?
 140     if [ ${SCH_RETVAL} -eq 0 ]; then
 141         rm -f ${sch_lockfile}
 142         rm -f ${sch_pidfile}
 143     fi
 144
 145     # performer
 146     eval "/etc/rc.d/init.d/${per_progd} stop"
 147     PER_RETVAL=$?
 148     if [ ${PER_RETVAL} -eq 0 ]; then
 149         rm -f ${per_lockfile}
 150         rm -f ${per_pidfile}
 151     fi
 152
 153     # asynscheduler
 154     eval "/etc/rc.d/init.d/${asyn_sch_progd} stop"
 155     ASYN_SCH_RETVAL=$?
 156     if [ ${ASYN_SCH_RETVAL} -eq 0 ]; then
 157         rm -f ${asyn_sch_lockfile}
 158         rm -f ${asyn_sch_pidfile}
 159     fi
 160
 161     # asynperformer
 162     eval "/etc/rc.d/init.d/${asyn_per_progd} stop"
 163     ASYN_PER_RETVAL=$?
 164     if [ ${ASYN_PER_RETVAL} -eq 0 ]; then
 165         rm -f ${asyn_per_lockfile}
 166         rm -f ${asyn_per_pidfile}
 167     fi
 168
 169     # The return code of the performer daemon is the first digit.
 170     # The return code of the scheduler daemon is the second digit.
 171     # The return code of the silhouetted daemon is the third digit.
 172     # All stop functions return only the exit code of 0(Normal) or 1(Abnormal).
 173     #RETVAL=`expr ${SIL_RETVAL} \* 100 + ${SCH_RETVAL} \* 10 + ${PER_RETVAL}`
 174     RETVAL=`expr ${SIL_RETVAL} \* 10000 + ${SCH_RETVAL} \* 1000 + ${PER_RETVAL} \* 100 + ${ASYN_SCH_RETVAL} \* 10 + ${ASYN_PER_RETVAL}`
 175     return ${RETVAL}
 176 }
 177
 178 restart() {
 179     stop
 180     sleep 1
 181     start
 182 }
 183
 184
 185 case "$1" in
 186     start)
 187         start
 188         ;;
 189     stop)
 190         stop
 191         ;;
 192     restart|reload)
 193         restart
 194         ;;
 195     condrestart)
 196         [ -e ${lockfile} ] && restart
 197         RETVAL=$?
 198         ;;
 199     status)
 200         status ${progd}
 201     eval "/etc/rc.d/init.d/${sch_progd} status"
 202     eval "/etc/rc.d/init.d/${per_progd} status"
 203     eval "/etc/rc.d/init.d/${asyn_sch_progd} status"
 204     eval "/etc/rc.d/init.d/${asyn_per_progd} status"
 205         RETVAL=$?
 206         ;;
 207     *)
 208         echo $"Usage: $0 {start|stop|restart|condrestart|status}"
 209         RETVAL=1
 210 esac
 211
 212 exit $RETVAL