some cpu usage improvements

[etc/awesome.git] / widgets / abase.lua

diff --git a/widgets/abase.lua b/widgets/abase.lua
index 20cc955f62e38edcbc0c36872fdf2fa2e02787ad..fb20d768222e974e83f6af9b2360c05a5290eaf5 100644 (file)
--- a/widgets/abase.lua
+++ b/widgets/abase.lua
@@ -10,10 +10,9 @@ local newtimer     = require("lain.helpers").newtimer
 local async        = require("lain.asyncshell")
 local wibox        = require("wibox")
 
-local io           = io
 local setmetatable = setmetatable
 
--- Basic template for custom widgets 
+-- Basic template for custom widgets
 -- Asynchronous version
 -- lain.widgets.abase
 
@@ -28,10 +27,12 @@ local function worker(args)
 
     function abase.update()
         async.request(cmd, function(f)
-            output = f:read("*a")
-            f:close()
-            widget = abase.widget
-            settings()
+            output = f
+            if output ~= abase.prev then
+                widget = abase.widget
+                settings()
+                abase.prev = output
+            end
         end)
     end