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[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
12 local wibox        = require("wibox")
13
14 local io           = { open = io.open }
15 local string       = { format = string.format,
16                        match  = string.match }
17
18 local setmetatable = setmetatable
19
20 -- System load
21 -- lain.widgets.sysload
22 local sysload = {}
23
24 local function worker(args)
25     local args = args or {}
26     local timeout = args.timeout or 5
27     local settings = args.settings or function() end
28
29     sysload.widget = wibox.widget.textbox('')
30
31     function update()
32         local f = io.open("/proc/loadavg")
33         local ret = f:read("*all")
34         f:close()
35
36         load_1, load_5, load_15 = string.match(ret, "([^%s]+) ([^%s]+) ([^%s]+)")
37
38         widget = sysload.widget
39         settings()
40     end
41
42     newtimer("sysload", timeout, update)
43     return sysload.widget
44 end
45
46 return setmetatable(sysload, { __call = function(_, ...) return worker(...) end })