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 = helpers.make_widget_textbox()
29 function net.get_first_device()
30 local ws = helpers.read_pipe("ip link show | cut -d' ' -f2,9")
31 ws = ws:match("%w+: UP") or ws:match("ppp%w+: UNKNOWN")
32 if ws then return { ws:match("(%w+):") }
36 local args = args or {}
37 local timeout = args.timeout or 2
38 local units = args.units or 1024 --kb
39 local notify = args.notify or "on"
40 local screen = args.screen or 1
41 local settings = args.settings or function() end
42 local iface = args.iface or net.get_first_device()
44 -- Compatibility with old API where iface was a string corresponding to 1 interface
45 if type(iface) == "string" then
51 -- Mark all devices as initially online/active
52 for i, dev in ipairs(iftable) do
53 helpers.set_map(dev, true)
57 -- This check is required to ensure we keep looking for one device if
58 -- none is found by net.get_first_device() at startup (i.e. iftable = {})
59 if next(iftable) == nil then
60 iftable = net.get_first_device()
63 -- These are the totals over all specified interfaces
65 -- New api - Current state of requested devices
67 -- Bytes since last iteration
72 -- Total bytes transfered
76 for i, dev in ipairs(iftable) do
78 local dev_before = net.devices[dev] or { last_t = 0, last_r = 0 }
80 dev_now.carrier = helpers.first_line(string.format('/sys/class/net/%s/carrier', dev)) or '0'
81 dev_now.state = helpers.first_line(string.format('/sys/class/net/%s/operstate', dev)) or 'down'
83 local now_t = tonumber(helpers.first_line(string.format('/sys/class/net/%s/statistics/tx_bytes', dev)) or 0)
84 local now_r = tonumber(helpers.first_line(string.format('/sys/class/net/%s/statistics/rx_bytes', dev)) or 0)
86 dev_now.sent = (now_t - dev_before.last_t) / timeout / units
87 dev_now.received = (now_r - dev_before.last_r) / timeout / units
89 net_now.sent = net_now.sent + dev_now.sent
90 net_now.received = net_now.received + dev_now.received
92 dev_now.sent = string.gsub(string.format('%.1f', dev_now.sent), ',', '.')
93 dev_now.received = string.gsub(string.format('%.1f', dev_now.received), ',', '.')
95 dev_now.last_t = now_t
96 dev_now.last_r = now_r
98 -- This will become dev_before in the next update/iteration
99 net.devices[dev] = dev_now
101 total_t = total_t + now_t
102 total_r = total_r + now_r
104 -- Notify only once when connection is loss
105 if string.match(dev_now.carrier, "0") and notify == "on" and helpers.get_map(dev) then
109 icon = helpers.icons_dir .. "no_net.png",
112 helpers.set_map(dev, false)
113 elseif string.match(dev_now.carrier, "1") then
114 helpers.set_map(dev, true)
117 -- Old api compatibility
118 net_now.carrier = dev_now.carrier
119 net_now.state = dev_now.state
121 net_now.devices[dev] = dev_now
122 -- With the new api new_now.sent and net_now.received will be the
123 -- totals across all specified devices
127 if total_t ~= net.last_t or total_r ~= net.last_r then
128 -- Convert to a string to round the digits after the float point
129 net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ',', '.')
130 net_now.received = string.gsub(string.format('%.1f', net_now.received), ',', '.')
140 helpers.newtimer(iface, timeout, update)
145 return setmetatable({}, { __call = function(_, ...) return worker(...) end })