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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local io = { open = io.open }
local setmetatable = setmetatable
local math = { floor = math.floor }
local string = { format = string.format }
-- }}}
-- Entropy: provides available system entropy
module("vicious.entropy")
-- {{{ Entropy widget type
function worker(format, poolsize)
-- Don't waste time opening the poolsize, Linux 2.6 has a default
-- entropy pool of 4096-bits, if needed specify otherwise
if poolsize == nil then
poolsize = 4096
end
-- Get available entropy
local f = io.open("/proc/sys/kernel/random/entropy_avail")
local ent_avail = f:read("*line")
f:close()
-- Calculate percentage
ent_avail_percent = math.floor(ent_avail * 100 / poolsize)
-- This data is intended for a progressbar
ent_avail_percent = string.format("%0d", ent_avail_percent)
return {ent_avail, ent_avail_percent}
end
-- }}}
setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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