blob: 97568cc1c8dc2b18662d963fdda667ca3e167535 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
----------------------------------------------------------
-- 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 = { ceil = math.ceil }
-- }}}
-- Entropy: provides available system entropy
module("vicious.entropy")
-- {{{ Entropy widget type
local function worker(format, poolsize)
-- Linux 2.6 has a default entropy pool of 4096-bits
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.ceil(ent_avail * 100 / poolsize)
return {ent_avail, ent_avail_percent}
end
-- }}}
setmetatable(_M, { __call = function(_, ...) return worker(...) end })
|
