diff options
author | Adrian C. (anrxc) <anrxc@sysphere.org> | 2010-03-14 01:55:33 +0100 |
---|---|---|
committer | Adrian C. (anrxc) <anrxc@sysphere.org> | 2010-03-14 01:55:33 +0100 |
commit | 237470c8f45190b213e3a173ce6ae1a74b3e11fe (patch) | |
tree | 7f53c8144761947d4bde20715bcad34f4be0d6c0 /widgets/entropy.lua | |
parent | 9a82d4113a8271b7dfc7506f2b07379e3ede89a8 (diff) | |
download | vicious-legacy-237470c8f45190b213e3a173ce6ae1a74b3e11fe.tar.xz |
API: transform widgets namespace table to a directory
Diffstat (limited to 'widgets/entropy.lua')
-rw-r--r-- | widgets/entropy.lua | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/widgets/entropy.lua b/widgets/entropy.lua new file mode 100644 index 0000000..395d5d9 --- /dev/null +++ b/widgets/entropy.lua @@ -0,0 +1,33 @@ +--------------------------------------------------- +-- Licensed under the GNU General Public License v2 +-- * (c) 2010, Adrian C. <anrxc@sysphere.org> +--------------------------------------------------- + +-- {{{ Grab environment +local tonumber = tonumber +local setmetatable = setmetatable +local math = { ceil = math.ceil } +local helpers = require("vicious.helpers") +-- }}} + + +-- Entropy: provides available system entropy +module("vicious.widgets.entropy") + + +-- {{{ Entropy widget type +local function worker(format) + local random = helpers.pathtotable("/proc/sys/kernel/random") + + -- Linux 2.6 has a default entropy pool of 4096-bits + local poolsize = tonumber(random.poolsize) + -- Get available entropy + local ent = tonumber(random.entropy_avail) + -- Calculate percentage + local ent_percent = math.ceil(ent * 100 / poolsize) + + return {ent, ent_percent} +end +-- }}} + +setmetatable(_M, { __call = function(_, ...) return worker(...) end }) |