81 lines
2.5 KiB
Lua
81 lines
2.5 KiB
Lua
---------------------------------------------------
|
|
-- Licensed under the GNU General Public License v2
|
|
-- * (c) 2010, Adrian C. <anrxc@sysphere.org>
|
|
-- * (c) 2009, Lucas de Vries <lucas@glacicle.com>
|
|
---------------------------------------------------
|
|
|
|
-- {{{ 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 })
|