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 })