VBLADE/vblade-master/contrib/persistence/vblade.init.daemon

   1 #!/bin/sh
   2
   3 PATH=/sbin:/usr/sbin:/bin:/usr/bin
   4 DESC="vblade export"
   5 NAME=vblade
   6 VBLADE="/usr/sbin/$NAME"
   7 DAEMON=/usr/bin/daemon
   8 IONICE=/usr/bin/ionice
   9 PIDDIR="/var/run/vblade/"
  10
  11 [ -x "$VBLADE" ] || exit 0
  12 [ -x "$DAEMON" ] || exit 0
  13
  14 mkdir -p "$PIDDIR"
  15
  16 # Emulation of LSB functions
  17 VERBOSE=1
  18 log_daemon_msg () {
  19     printf '%s ' "$@"
  20 }
  21 log_end_msg () {
  22     local CODE="$1"
  23     if [ "$CODE" -eq 0 ] ; then
  24         echo '.'
  25     else
  26         echo 'failed!'
  27     fi
  28 }
  29
  30 # Start a vblade instance
  31 #
  32 # Return
  33 #   0 if daemon has been started
  34 #   1 if daemon was already running
  35 #   2 if daemon could not be started
  36 do_start () {
  37     local INSTANCE="$1"
  38     local CONFIG="$2"
  39
  40     sh -n "$CONFIG" 2>/dev/null || return 2
  41
  42     shelf=
  43     slot=
  44     filename=
  45     netif=
  46     options=
  47     ionice=
  48
  49     . "$CONFIG"
  50
  51     [ "$netif" ] || return 2
  52     [ "$shelf" ] || return 2
  53     [ "$slot" ] || return 2
  54     [ "$filename" ] || return 2
  55
  56     if [ "$ionice" ] ; then
  57         if [ -x "$IONICE" ] ; then
  58             ionice="$IONICE $ionice"
  59         else
  60             ionice=
  61         fi
  62     fi
  63
  64     "$DAEMON" \
  65         --running \
  66         --name "$INSTANCE" \
  67         --pidfiles "$PIDDIR" \
  68         && return 1
  69     $ionice "$DAEMON" \
  70         --respawn \
  71         --name "$INSTANCE" \
  72         --pidfiles "$PIDDIR" \
  73         --output daemon.notice \
  74         --stdout daemon.notice \
  75         --stderr daemon.err -- \
  76         $VBLADE $options $shelf $slot $netif $filename || return 2
  77 }
  78
  79 # Stop a vblade instance
  80 #
  81 # Return
  82 #   0 if daemon has been stopped
  83 #   1 if daemon was already stopped
  84 #   2 if daemon could not be stopped
  85 #   other if a failure occurred
  86 do_stop () {
  87     local INSTANCE="$1"
  88
  89     "$DAEMON" \
  90         --running \
  91         --name "$INSTANCE" \
  92         --pidfiles "$PIDDIR" || return 1
  93     "$DAEMON" \
  94         --stop \
  95         --name "$INSTANCE" \
  96         --pidfiles "$PIDDIR" \
  97         --stop || return 2
  98     # Wait until the process is gone
  99     for i in $(seq 1 10) ; do
 100         "$DAEMON" \
 101             --running \
 102             --name "$INSTANCE" \
 103             --pidfiles "$PIDDIR" || return 0
 104     done
 105     return 2
 106 }
 107
 108 EXIT=0
 109
 110 do_action () {
 111     local CONFIG="$1"
 112
 113     INSTANCE="$(basename "${CONFIG%%.conf}")"
 114
 115     case "$ACTION" in
 116         start)
 117             [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$INSTANCE"
 118             do_start "$INSTANCE" "$CONFIG"
 119             case "$?" in
 120                 0|1)    [ "$VERBOSE" != no ] && log_end_msg 0 ;;
 121                 2)      [ "$VERBOSE" != no ] && log_end_msg 1 ;;
 122             esac
 123             ;;
 124         stop)
 125             [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$INSTANCE"
 126             do_stop "$INSTANCE"
 127             case "$?" in
 128                 0|1)    [ "$VERBOSE" != no ] && log_end_msg 0 ;;
 129                 2)      [ "$VERBOSE" != no ] && log_end_msg 1 ;;
 130             esac
 131             ;;
 132         status)
 133             if "$DAEMON" \
 134                 --running \
 135                 --name "$INSTANCE" \
 136                 --pidfiles "$PIDDIR"
 137             then
 138                 echo "$DESC instance $INSTANCE is running"
 139             else
 140                 echo "$DESC instance $INSTANCE is not running"
 141                 EXIT=1
 142             fi
 143             ;;
 144         restart|force-reload)
 145             log_daemon_msg "Restarting $DESC" "$INSTANCE"
 146             do_stop "$INSTANCE"
 147             case "$?" in
 148                 0|1)
 149                     do_start "$INSTANCE" "$CONFIG"
 150                     case "$?" in
 151                         0)  log_end_msg 0 ;;
 152                         *)
 153                             # Old process is still running or
 154                             # failed to start
 155                             log_end_msg 1 ;;
 156                     esac
 157                     ;;
 158                 *)
 159                     # Failed to stop
 160                     log_end_msg 1
 161                     ;;
 162                 esac
 163             ;;
 164         *)
 165             echo "Usage: /etc/init.d/vblade {start|stop|status|restart|force-reload} [<export> ...]" >&2
 166             exit 3
 167             ;;
 168     esac
 169 }
 170
 171
 172 ACTION="$1"
 173 shift
 174
 175 if [ "$1" ] ; then
 176     while [ "$1" ] ; do
 177         CONFIG="/etc/vblade.conf.d/$1.conf"
 178         if [ -f "$CONFIG" ] ; then
 179             do_action "$CONFIG"
 180         fi
 181         shift
 182     done
 183 else
 184     for CONFIG in /etc/vblade.conf.d/*.conf ; do
 185         if [ -f "$CONFIG" ] ; then
 186             do_action "$CONFIG"
 187         fi
 188     done
 189 fi
 190
 191 exit $EXIT