entropy: widget rewritten, poolsize no longer an argument

README

@@ -229,8 +229,6 @@ vicious.widgets.gmail
 
 vicious.widgets.entropy
   - provides available system entropy
-  - takes the poolsize as an argument, or uses Linux 2.6 default
-    entropy pool of 4096-bits
   - returns 1st value as available system entropy and 2nd value as
     available entropy in percent
 

entropy.lua

@@ -5,9 +5,9 @@
 
 -- {{{ Grab environment
 local tonumber = tonumber
-local io = { open = io.open }
 local setmetatable = setmetatable
 local math = { ceil = math.ceil }
+local helpers = require("vicious.helpers")
 -- }}}
 
 
@@ -16,15 +16,16 @@ module("vicious.entropy")
 
 
 -- {{{ Entropy widget type
-local function worker(format, poolsize)
+local function worker(format)
+    local random = setmetatable(
+        { _path = "/proc/sys/kernel/random"},
+        helpers.pathtotable
+    )
+
     -- Linux 2.6 has a default entropy pool of 4096-bits
-    if poolsize == nil then poolsize = 4096 end
+    local poolsize = tonumber(random.poolsize)
-
     -- Get available entropy
-    local f = io.open("/proc/sys/kernel/random/entropy_avail")
+    local ent = tonumber(random.entropy_avail)
-    local ent = tonumber(f:read("*line"))
-    f:close()
-
     -- Calculate percentage
     local ent_percent = math.ceil(ent * 100 / poolsize)