master

 --local osEvent=os.pullEvent
--os.pullEvent=os.pullEventRaw
function protect()
    local combine = fs.combine
    local oldFs = fs.open
    --print'OS Protect active!'
    fs.open = function(path,...)
        if combine("/",path) == "rom/programs/edit" then
            --print'Failed to call edit!'
            return
        end
        if combine("/",path) == "rom/programs/delete" then
            --print'Failed to call delete!'
            return
        end
        if combine("/",path) ~= "rom/programs/delete" then
            return oldFs(path,...)
        end
    end
end


function logout()
    timetor=300
    while timetor > 0 do
        term.clear()
        term.setCursorPos(1,1)
        timetor=timetor-1
        print('Welcome OP. System Online. Restarting in '..timetor..' seconds.')
        sleep(.95)
    end
    os.reboot()
end

function listener()
    while true do
        eventExtend,timer = os.pullEvent("extendme")
        local typeCheck=type(timer)
        if typeCheck=="number" then
            if eventExtend == "extendme" and timer > 0 then
                print("Extending time!")
                timetor=timetor+timer
            end
        else
            sleep(2)
            print'Invalid choice.'
        end

    end
end



parallel.waitForAll(listener,logout,protect)
os.pullEvent=osEvent