: << =cut

=head1 NAME

lxc-lib -- some base functions for the lxc_* plugins

=head1 AUTHOR

schaefer@alphanet.ch

=head1 LICENSE

GPLv3

=cut

lxcpath=${lxcpath:-/var/lib/lxc}

function active_guests {
   local g active i ok
   for g in $(lxc-ls | sort -u)
   do
      # handle optional exclude list in $1
      ok=1
      for i in $1
      do
         if [ "$i" = "$g" ]; then
            ok=0
         fi
      done

      if [ $ok = 1 ]; then
         if lxc-info -n $g 2>&1 | grep -qs RUNNING; then
            active="$active $g"
         fi
      fi
   done

   echo $active
}

function lxc_cgroup {
   # lxc3
   lxc-cgroup -o /dev/stdout -l INFO $* | sed 's/^.*lxc_cgroup.c:main:[0-9][0-9]* - //'

   # lxc < 3
#   lxc-cgroup $*
}

function lxc_clean_fieldname {
   # workaround for bug leaving out the first number
   echo $(clean_fieldname ${1::1}$1)
}

function lxc_netdev {
   local g=$1 dev

   if [ -f $lxcpath/$g/config ]; then
      # lxc3
      egrep '^lxc.net.0.veth.pair' $lxcpath/$g/config | awk '{print $NF;}'

      # lxc < 3
#      egrep '^lxc.network.veth.pair' $lxcpath/$g/config | awk '{print $NF;}'
   else
      echo unknown
   fi
}