All patches and comments are welcome. Please squash your changes to logical
commits before using git-format-patch and git-send-email to
patches@git.madduck.net.
If you'd read over the Git project's submission guidelines and adhered to them,
I'd be especially grateful.
4 Licensed under GNU General Public License v2
5 * (c) 2013, Luke Bonham
6 * (c) 2010-2012, Peter Hofmann
10 local helpers = require("lain.helpers")
11 local naughty = require("naughty")
12 local wibox = require("wibox")
14 local string = { format = string.format,
16 match = string.match }
18 local setmetatable = setmetatable
23 local function worker(args)
24 local net = { last_t = 0, last_r = 0, devices = {} }
26 function net.get_first_device()
27 local ws = helpers.read_pipe("/usr/sbin/ip link show | cut -d' ' -f2,9")
28 ws = ws:match("%w+: UP") or ws:match("ppp%w+: UNKNOWN")
29 if ws then return { ws:match("(%w+):") }
33 local args = args or {}
34 local timeout = args.timeout or 2
35 local units = args.units or 1024 --kb
36 local notify = args.notify or "on"
37 local screen = args.screen or 1
38 local settings = args.settings or function() end
39 local iface = args.iface or net.get_first_device()
41 net.widget = wibox.widget.textbox('')
43 -- Compatibility with old API where iface was a string corresponding to 1 interface
44 if type(iface) == "string" then
50 -- Mark all devices as initially online/active
51 for i, dev in ipairs(iftable) do
52 helpers.set_map(dev, true)
56 -- This check is required to ensure we keep looking for one device if
57 -- none is found by net.get_first_device() at startup (i.e. iftable = {})
58 if next(iftable) == nil then
59 iftable = net.get_first_device()
62 -- These are the totals over all specified interfaces
64 -- New api - Current state of requested devices
66 -- Bytes since last iteration
71 -- Total bytes transfered
75 for i, dev in ipairs(iftable) do
77 local dev_before = net.devices[dev] or { last_t = 0, last_r = 0 }
79 dev_now.carrier = helpers.first_line(string.format('/sys/class/net/%s/carrier', dev)) or '0'
80 dev_now.state = helpers.first_line(string.format('/sys/class/net/%s/operstate', dev)) or 'down'
82 local now_t = tonumber(helpers.first_line(string.format('/sys/class/net/%s/statistics/tx_bytes', dev)) or 0)
83 local now_r = tonumber(helpers.first_line(string.format('/sys/class/net/%s/statistics/rx_bytes', dev)) or 0)
85 dev_now.sent = (now_t - dev_before.last_t) / timeout / units
86 dev_now.received = (now_r - dev_before.last_r) / timeout / units
88 net_now.sent = net_now.sent + dev_now.sent
89 net_now.received = net_now.received + dev_now.received
91 dev_now.sent = string.gsub(string.format('%.1f', dev_now.sent), ',', '.')
92 dev_now.received = string.gsub(string.format('%.1f', dev_now.received), ',', '.')
94 dev_now.last_t = now_t
95 dev_now.last_r = now_r
97 -- This will become dev_before in the next update/iteration
98 net.devices[dev] = dev_now
100 total_t = total_t + now_t
101 total_r = total_r + now_r
103 -- Notify only once when connection is loss
104 if string.match(dev_now.carrier, "0") and notify == "on" and helpers.get_map(dev) then
108 icon = helpers.icons_dir .. "no_net.png",
111 helpers.set_map(dev, false)
112 elseif string.match(dev_now.carrier, "1") then
113 helpers.set_map(dev, true)
116 -- Old api compatibility
117 net_now.carrier = dev_now.carrier
118 net_now.state = dev_now.state
120 net_now.devices[dev] = dev_now
121 -- With the new api new_now.sent and net_now.received will be the
122 -- totals across all specified devices
126 if total_t ~= net.last_t or total_r ~= net.last_r then
127 -- Convert to a string to round the digits after the float point
128 net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ',', '.')
129 net_now.received = string.gsub(string.format('%.1f', net_now.received), ',', '.')
139 helpers.newtimer(iface, timeout, update)
141 return setmetatable(net, { __index = net.widget })
144 return setmetatable({}, { __call = function(_, ...) return worker(...) end })