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Merge pull request #420 from sim590/unpack-lua51-compat
[etc/awesome.git] / widget / sysload.lua
1 --[[
2
3      Licensed under GNU General Public License v2
4       * (c) 2013,      Luca CPZ
5       * (c) 2010-2012, Peter Hofmann
6
7 --]]
8
9 local helpers     = require("lain.helpers")
10 local wibox       = require("wibox")
11 local open, match = io.open, string.match
12
13 -- System load
14 -- lain.widget.sysload
15
16 local function factory(args)
17     local sysload  = { widget = wibox.widget.textbox() }
18     local args     = args or {}
19     local timeout  = args.timeout or 2
20     local settings = args.settings or function() end
21
22     function sysload.update()
23         local f = open("/proc/loadavg")
24         local ret = f:read("*all")
25         f:close()
26
27         load_1, load_5, load_15 = match(ret, "([^%s]+) ([^%s]+) ([^%s]+)")
28
29         widget = sysload.widget
30         settings()
31     end
32
33     helpers.newtimer("sysload", timeout, sysload.update)
34
35     return sysload
36 end
37
38 return factory