84 lines
2.3 KiB
Lua
84 lines
2.3 KiB
Lua
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-- {{{ Grab environment
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local tonumber = tonumber
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local os = { time = os.time }
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local setmetatable = setmetatable
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local helpers = require("vicious.helpers")
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local io = { popen = io.popen }
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local string = { match = string.match }
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-- }}}
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-- Net: provides state and usage statistics of all network interfaces
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-- vicious.widgets.net
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local net_freebsd = {}
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-- Initialize function tables
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local nets = {}
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-- Variable definitions
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local unit = { ["b"] = 1, ["kb"] = 1024,
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["mb"] = 1024^2, ["gb"] = 1024^3
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}
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-- {{{ Net widget type
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local function worker(format, warg)
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if not warg then return end
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local args = {}
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local buffer = nil
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local f = io.popen("netstat -n -b -I " .. helpers.shellquote(warg))
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local now = os.time()
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for line in f:lines() do
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if not (line:find("<Link") or line:find("Name")) then -- skipping missleading lines
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local split = { line:match(("([^%s]*)%s*"):rep(12)) }
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if buffer == nil then
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buffer = { tonumber(split[8]), tonumber(split[11]) } -- recv (field 8) and send (field 11)
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else
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buffer = { buffer[1] + tonumber(split[8]), buffer[2] + tonumber(split[11]) }
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end
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end
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end
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f:close()
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if buffer == nil then
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args["{carrier}"] = 0
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helpers.uformat(args, "rx", 0, unit)
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helpers.uformat(args, "tx", 0, unit)
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helpers.uformat(args, "down", 0, unit)
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helpers.uformat(args, "up", 0, unit)
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else
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args["{carrier}"] = 1
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helpers.uformat(args, "rx", buffer[1], unit)
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helpers.uformat(args, "tx", buffer[2], unit)
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if next(nets) == nil then
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helpers.uformat(args, "down", 0, unit)
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helpers.uformat(args, "up", 0, unit)
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else
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local interval = now - nets["time"]
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if interval <= 0 then interval = 1 end
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local down = (buffer[1] - nets[1]) / interval
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local up = (buffer[2] - nets[2]) / interval
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helpers.uformat(args, "down", down, unit)
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helpers.uformat(args, "up", up, unit)
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end
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nets["time"] = now
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-- Store totals
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nets[1] = buffer[1]
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nets[2] = buffer[2]
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end
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return args
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end
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-- }}}
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return setmetatable(net_freebsd, { __call = function(_, ...) return worker(...) end })
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