widgets/net.lua.orig

   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 helpers      = require("lain.helpers")
  11
  12 local notify_fg    = require("beautiful").fg_focus
  13 local naughty      = require("naughty")
  14 local wibox        = require("wibox")
  15
  16 <<<<<<< HEAD
  17 local io           = { popen  = io.popen }
  18 =======
  19 >>>>>>> upstream/master
  20 local string       = { format = string.format,
  21                        gsub   = string.gsub,
  22                        match  = string.match }
  23
  24 local setmetatable = setmetatable
  25
  26 -- Network infos
  27 -- lain.widgets.net
  28 local net = {
  29     last_t = 0,
  30     last_r = 0
  31 }
  32
  33 function net.get_device()
  34 <<<<<<< HEAD
  35     f = io.popen("ip link show | cut -d' ' -f2,9")
  36     ws = f:read("*a")
  37     f:close()
  38 =======
  39     local ws = helpers.read_pipe("ip link show | cut -d' ' -f2,9")
  40 >>>>>>> upstream/master
  41     ws = ws:match("%w+: UP") or ws:match("ppp%w+: UNKNOWN")
  42     if ws ~= nil then
  43         return ws:match("(%w+):")
  44     else
  45         return "network off"
  46     end
  47 end
  48
  49 local function worker(args)
  50     local args = args or {}
  51     local timeout = args.timeout or 2
  52     local units = args.units or 1024 --kb
  53     local notify = args.notify or "on"
  54     local screen = args.screen or 1
  55     local settings = args.settings or function() end
  56
  57     iface = args.iface or net.get_device()
  58
  59     net.widget = wibox.widget.textbox('')
  60
  61     helpers.set_map(iface, true)
  62
  63     function update()
  64         net_now = {}
  65
  66         if iface == "" or string.match(iface, "network off")
  67         then
  68             iface = net.get_device()
  69         end
  70
  71         net_now.carrier = helpers.first_line('/sys/class/net/' .. iface ..
  72                                            '/carrier') or "0"
  73         net_now.state = helpers.first_line('/sys/class/net/' .. iface ..
  74                                            '/operstate') or "down"
  75         local now_t = helpers.first_line('/sys/class/net/' .. iface ..
  76                                            '/statistics/tx_bytes') or 0
  77         local now_r = helpers.first_line('/sys/class/net/' .. iface ..
  78                                            '/statistics/rx_bytes') or 0
  79
  80         net_now.sent = (now_t - net.last_t) / timeout / units
  81         net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ",", ".")
  82
  83         net_now.received = (now_r - net.last_r) / timeout / units
  84         net_now.received = string.gsub(string.format('%.1f', net_now.received), ",", ".")
  85
  86         widget = net.widget
  87         settings()
  88
  89         net.last_t = now_t
  90         net.last_r = now_r
  91
  92         if net_now.carrier ~= "1" and notify == "on"
  93         then
  94             if helpers.get_map(iface)
  95             then
  96                 naughty.notify({
  97                     title    = iface,
  98                     text     = "no carrier",
  99                     timeout  = 7,
 100                     position = "top_left",
 101                     icon     = helpers.icons_dir .. "no_net.png",
 102                     fg       = notify_fg or "#FFFFFF",
 103                     screen   = screen
 104                 })
 105                 helpers.set_map(iface, false)
 106             end
 107         else
 108             helpers.set_map(iface, true)
 109         end
 110     end
 111
 112     helpers.newtimer(iface, timeout, update)
 113     return net.widget
 114 end
 115
 116 return setmetatable(net, { __call = function(_, ...) return worker(...) end })