--[[ Licensed under GNU General Public License v2 * (c) 2013, Luke Bonham * (c) 2010-2012, Peter Hofmann --]] local helpers = require("lain.helpers") local naughty = require("naughty") local wibox = require("wibox") local string = { format = string.format, match = string.match } -- Network infos -- lain.widget.net local function factory(args) local net = { widget = wibox.widget.textbox(), devices = {} } local args = args or {} local timeout = args.timeout or 2 local units = args.units or 1024 -- KB local notify = args.notify or "on" local screen = args.screen or 1 local settings = args.settings or function() end -- Compatibility with old API where iface was a string corresponding to 1 interface net.iface = (args.iface and (type(args.iface) == "string" and {args.iface}) or (type(args.iface) == "table" and args.iface)) or {} function net.get_device() helpers.async(string.format("ip link show", device_cmd), function(ws) ws = ws:match("(%w+): ") net.iface = ws and { ws } or {} end) end if #net.iface == 0 then net.get_device() end function net.update() -- These are the totals over all specified interfaces net_now = { devices = {}, -- Bytes since last iteration sent = 0, received = 0 } for i, dev in ipairs(net.iface) do local dev_now = {} local dev_before = net.devices[dev] or { last_t = 0, last_r = 0 } local now_t = tonumber(helpers.first_line(string.format("/sys/class/net/%s/statistics/tx_bytes", dev)) or 0) local now_r = tonumber(helpers.first_line(string.format("/sys/class/net/%s/statistics/rx_bytes", dev)) or 0) dev_now.carrier = helpers.first_line(string.format("/sys/class/net/%s/carrier", dev)) or "0" dev_now.state = helpers.first_line(string.format("/sys/class/net/%s/operstate", dev)) or "down" dev_now.sent = (now_t - dev_before.last_t) / timeout / units dev_now.received = (now_r - dev_before.last_r) / timeout / units net_now.sent = net_now.sent + dev_now.sent net_now.received = net_now.received + dev_now.received dev_now.sent = string.format("%.1f", dev_now.sent) dev_now.received = string.format("%.1f", dev_now.received) dev_now.last_t = now_t dev_now.last_r = now_r net.devices[dev] = dev_now -- Notify only once when connection is loss if string.match(dev_now.carrier, "0") and notify == "on" and helpers.get_map(dev) then naughty.notify { title = dev, text = "No carrier", icon = helpers.icons_dir .. "no_net.png", screen = screen } helpers.set_map(dev, false) elseif string.match(dev_now.carrier, "1") then helpers.set_map(dev, true) end net_now.carrier = dev_now.carrier net_now.state = dev_now.state net_now.devices[dev] = dev_now -- new_now.sent and net_now.received will be -- the totals across all specified devices end net_now.sent = string.format("%.1f", net_now.sent) net_now.received = string.format("%.1f", net_now.received) widget = net.widget settings() end helpers.newtimer("network", timeout, net.update) return net end return factory