mirror of https://github.com/lcpz/lain.git
127 lines
4.5 KiB
Lua
127 lines
4.5 KiB
Lua
|
|
--[[
|
|
|
|
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 }
|
|
local tostring = tostring
|
|
local setmetatable = setmetatable
|
|
|
|
-- Network infos
|
|
-- lain.widgets.net
|
|
|
|
local function worker(args)
|
|
local net = helpers.make_widget_textbox()
|
|
net.last_t = 0
|
|
net.last_r = 0
|
|
net.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+): <BROADCAST,MULTICAST,.-UP,LOWER_UP>")
|
|
net.iface = ws and { ws } or {}
|
|
end)
|
|
end
|
|
|
|
if #net.iface == 0 then net.get_device() end
|
|
|
|
function update()
|
|
-- These are the totals over all specified interfaces
|
|
net_now = {
|
|
-- New api - Current state of requested devices
|
|
devices = {},
|
|
-- Bytes since last iteration
|
|
sent = 0,
|
|
received = 0
|
|
}
|
|
|
|
-- Total bytes transfered
|
|
local total_t = 0
|
|
local total_r = 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
|
|
|
|
-- This will become dev_before in the next update/iteration
|
|
net.devices[dev] = dev_now
|
|
|
|
total_t = total_t + now_t
|
|
total_r = total_r + now_r
|
|
|
|
-- 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
|
|
|
|
-- Old api compatibility
|
|
net_now.carrier = dev_now.carrier
|
|
net_now.state = dev_now.state
|
|
-- And new api
|
|
net_now.devices[dev] = dev_now
|
|
-- With the new api new_now.sent and net_now.received will be the
|
|
-- totals across all specified devices
|
|
end
|
|
|
|
if total_t ~= net.last_t or total_r ~= net.last_r then
|
|
net_now.sent = string.format('%.1f', net_now.sent)
|
|
net_now.received = string.format('%.1f', net_now.received)
|
|
net.last_t = total_t
|
|
net.last_r = total_r
|
|
end
|
|
|
|
widget = net.widget
|
|
settings()
|
|
end
|
|
|
|
helpers.newtimer("net-" .. tostring(net.iface), timeout, update)
|
|
|
|
return net
|
|
end
|
|
|
|
return setmetatable({}, { __call = function(_, ...) return worker(...) end })
|