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path: root/ioslay-firefox
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#!/bin/sh

if [ "$1" = -q ]
then
    exec 2>/dev/null
    shift
fi

web_content_pids()
{
    top -w512 -bn1 -o '%MEM' | sed -e '1,/^$/d' | {
        while read line
        do set -- $line
           [ "${12} ${13}" = "Web Content" ] || continue
           echo $1
        done
    }
}

set -- $(web_content_pids | tac)

set -- $(printf "\055\055pid=%s " $*)


sum()
{
    local total=0 n
    for n in $*
    do
        total=$((total + n))
    done
    echo $total
}

keep()
{
    local n=$1
    shift
    set -- $*
    while [ $# -ge "$n" ]
    do
        shift
    done
    printf '%s\n' "$*"
}

log=
pct_log=
sudo -- iotop -qq -b "$@" |
    while read line
    do
        case "$line" in
            "Total DISK"*)
                [ "$(sum $pct_log)" -ge 85 ] && over=y || over=
                pct_log=
                log=$(keep 9 $log)
                if [ "$over" ]
                then
                    log="$log 1"
                    over=
                    if [ "$(sum $log)" -ge 3 ]
                    then
                        fireslay
                    fi
                else
                    log="$log 0"
                fi
            ;;
            "Current DISK"*) continue ;;
            *)
                set -- $line
                pct=${10%.*}
                pct_log="$pct_log $pct"
                ;;
        esac
    done