gistfile1.txt

killtree() {
    # Stolen from stack overflow
    local _pid=$1
    local _sig=${2:-TERM}
    kill -stop ${_pid} 2>/dev/null # needed to stop quickly forking parent from producing child between child killing and parent killing
    for _child in $(ps -o pid --no-headers --ppid ${_pid}); do
        killtree ${_child} ${_sig}
    done
    kill -${_sig} ${_pid} 2>/dev/null
}

function killjobs
{
    if [[ "${cmdarg_cfg['verbose']}" == "true" ]]; then
        echo 'Doing my best to kill all the background jobs, please wait...' >&2
        jobs -l >&2
        echo >&2
    fi
    for idx in ${!background_jobs[@]};
    do
      job=${background_jobs[$idx]}
      if [[ "${cmdarg_cfg['verbose']}" == "true" ]]; then
        echo "Killing $job" >&2
      fi
      killtree $job
    done

}

function trap_control_c
{
  if [ $LASTCTRLC -ne 0 ] && [ $(expr $(date "+%s") - $LASTCTRLC) -le 2 ]; then
    killjobs
    return
  fi

  ps wwfx -p $$ >&2

  echo >&2
  echo "Press Ctrl+C again within 2 seconds to quit" >&2
  LASTCTRLC=$(date "+%s")
}

trap trap_control_c SIGINT