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215fd6230118dc130d48217094f03bd16b2ba43d
[etc/awesome.git] / widgets / sysload.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013,      Luke Bonham                
6       * (c) 2010-2012, Peter Hofmann              
7                                                   
8 --]]
9
10 local newtimer     = require("lain.helpers").newtimer
11 local wibox        = require("wibox")
12 local io           = { open = io.open }
13 local string       = { match  = string.match }
14 local setmetatable = setmetatable
15
16 -- System load
17 -- lain.widgets.sysload
18 local sysload = {}
19
20 local function worker(args)
21     local args = args or {}
22     local timeout = args.timeout or 2
23     local settings = args.settings or function() end
24
25     sysload.widget = wibox.widget.textbox()
26
27     function update()
28         local f = io.open("/proc/loadavg")
29         local ret = f:read("*all")
30         f:close()
31
32         load_1, load_5, load_15 = string.match(ret, "([^%s]+) ([^%s]+) ([^%s]+)")
33
34         widget = sysload.widget
35         settings()
36     end
37
38     newtimer("sysload", timeout, update)
39     return sysload.widget
40 end
41
42 return setmetatable(sysload, { __call = function(_, ...) return worker(...) end })