#!/bin/sh
# set -x
# 
#  Cancel job running in FORK.
# 

echo "----- starting cancel_fork_job -----" 1>&2
trap 'echo "----- exiting cancel_fork_job -----" 1>&2; echo "" 1>&2' EXIT

joboption_lrms="fork"

# ARC1 passes first the config file.
if [ "$1" = "--config" ]; then shift; ARC_CONFIG=$1; shift; fi
GRAMI_FILE=$1

# define paths and config parser
basedir=`dirname $0`
basedir=`cd $basedir > /dev/null && pwd` || exit $?
. "${basedir}/lrms_common.sh"

# load common cancel functions
. "${pkgdatadir}/cancel_common.sh" || exit $?

# run common init
#  * parse grami
#  * parse config
#  * load LRMS-specific env
common_init

# fork cancel
if [ -z "$joboption_controldir" ] ; then
  joboption_controldir=`dirname "$GRAMI_FILE"`
  if [ "$joboption_controldir" = '.' ] ; then
    joboption_controldir="$PWD"
  fi
fi

job_control_dir="$joboption_controldir"
if [ -z "$joboption_gridid" ] ; then
  joboption_gridid=`basename "$GRAMI_FILE" | sed 's/^job\.\(.*\)\.grami$/\1/'`
fi

echo "Deleting job $joboption_gridid, local id $joboption_jobid" 1>&2

if [ ! -r "$job_control_dir/job.${joboption_gridid}.local" ]; then
  echo "Local description of job ${joboption_gridid} not found at '$job_control_dir/job.${joboption_gridid}.local'. Job was not killed, if running at all." 1>&2
  exit 1
fi

if [ -z "$joboption_jobid" ] ; then
  joboption_jobid=`cat "$job_control_dir/job.${joboption_gridid}.local" | grep '^localid=' | sed 's/^localid=//'`
fi

job_control_subdir=
if [ -r "$job_control_dir/accepting/job.${joboption_gridid}.status" ]; then
  job_control_subdir="$job_control_dir/accepting"
elif [ -r "$job_control_dir/processing/job.${joboption_gridid}.status" ]; then
  job_control_subdir="$job_control_dir/processing"
elif [ -r "$job_control_dir/finished/job.${joboption_gridid}.status" ]; then
  job_control_subdir="$job_control_dir/finished"
else
  echo "Status file of job ${joboption_gridid} not found in '$job_control_dir'. Job was not killed, if running at all." 1>&2
  exit 1
fi

case X`cat "$job_control_subdir/job.${joboption_gridid}.status"` in
    XINLRMS | XCANCELING)
        if [ -z "$joboption_jobid" ] ; then
            echo "Can't find local id of job" 1>&2
            exit 1
        fi
        kill -TERM $joboption_jobid
        sleep 5
        kill -KILL $joboption_jobid
        ;;

    XFINISHED | XDELETED)
        echo "Job already died, won't do anything" 1>&2
        ;;
    *)
        echo "Job is at unkillable state" 1>&2
        ;;
esac

exit 0