--------------------------------------------------- -- Licensed under the GNU General Public License v2 -- * (c) 2010, Adrian C. -- * (c) 2009, Lucas de Vries --------------------------------------------------- -- {{{ Grab environment local tonumber = tonumber local os = { time = os.time } local io = { lines = io.lines } local setmetatable = setmetatable local string = { match = string.match } local helpers = require("vicious.helpers") -- }}} -- Net: provides state and usage statistics of all network interfaces -- vicious.widgets.net local net = {} -- Initialize function tables local nets = {} -- Variable definitions local unit = { ["b"] = 1, ["kb"] = 1024, ["mb"] = 1024^2, ["gb"] = 1024^3 } -- {{{ Net widget type local function worker(format) local args = {} -- Get NET stats for line in io.lines("/proc/net/dev") do -- Match wmaster0 as well as rt0 (multiple leading spaces) local name = string.match(line, "^[%s]?[%s]?[%s]?[%s]?([%w]+):") if name ~= nil then -- Received bytes, first value after the name local recv = tonumber(string.match(line, ":[%s]*([%d]+)")) -- Transmited bytes, 7 fields from end of the line local send = tonumber(string.match(line, "([%d]+)%s+%d+%s+%d+%s+%d+%s+%d+%s+%d+%s+%d+%s+%d$")) helpers.uformat(args, name .. " rx", recv, unit) helpers.uformat(args, name .. " tx", send, unit) -- Operational state and carrier detection local sysnet = helpers.pathtotable("/sys/class/net/" .. name) args["{"..name.." carrier}"] = tonumber(sysnet.carrier) or 0 local now = os.time() if nets[name] == nil then -- Default values on the first run nets[name] = {} helpers.uformat(args, name .. " down", 0, unit) helpers.uformat(args, name .. " up", 0, unit) else -- Net stats are absolute, substract our last reading local interval = now - nets[name].time if interval <= 0 then interval = 1 end local down = (recv - nets[name][1]) / interval local up = (send - nets[name][2]) / interval helpers.uformat(args, name .. " down", down, unit) helpers.uformat(args, name .. " up", up, unit) end nets[name].time = now -- Store totals nets[name][1] = recv nets[name][2] = send end end return args end -- }}} return setmetatable(net, { __call = function(_, ...) return worker(...) end })