103 lines
3.6 KiB
Lua
103 lines
3.6 KiB
Lua
---------------------------------------------------
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-- Licensed under the GNU General Public License v2
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-- * (c) 2009, Adrian C. <anrxc.sysphere.org>
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-- * (c) Wicked, Lucas de Vries
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---------------------------------------------------
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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 io = { open = io.open }
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local setmetatable = setmetatable
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local math = { floor = math.floor }
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local string = { match = string.match }
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-- }}}
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-- Net: provides usage statistics for all network interfaces
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module("vicious.net")
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-- Initialise function tables
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local nets = {}
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-- {{{ Net widget type
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local function worker(format)
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-- Get /proc/net/dev
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local f = io.open("/proc/net/dev")
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local args = {}
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for line in f:lines() do
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-- Match wmaster0 as well as rt0 (multiple leading spaces)
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if string.match(line, "^[%s]?[%s]?[%s]?[%s]?[%w]+:") then
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local name = string.match(line, "^[%s]?[%s]?[%s]?[%s]?([%w]+):")
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-- Received bytes, first value after the name
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local recv = tonumber(string.match(line, ":[%s]*([%d]+)"))
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local send = -- Transmited bytes, 7 fields from end of the line
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tonumber(string.match(line, "([%d]+)%s+%d+%s+%d+%s+%d+%s+%d+%s+%d+%s+%d+%s+%d$"))
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args["{"..name.." rx_b}"] = math.floor(recv*10)/10
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args["{"..name.." tx_b}"] = math.floor(send*10)/10
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args["{"..name.." rx_kb}"] = math.floor(recv/1024*10)/10
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args["{"..name.." tx_kb}"] = math.floor(send/1024*10)/10
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args["{"..name.." rx_mb}"] = math.floor(recv/1024/1024*10)/10
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args["{"..name.." tx_mb}"] = math.floor(send/1024/1024*10)/10
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args["{"..name.." rx_gb}"] = math.floor(recv/1024/1024/1024*10)/10
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args["{"..name.." tx_gb}"] = math.floor(send/1024/1024/1024*10)/10
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if nets[name] == nil then
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-- Default values on the first run
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nets[name] = {}
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args["{"..name.." down}"] = "N/A"
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args["{"..name.." up}"] = "N/A"
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args["{"..name.." down_b}"] = 0
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args["{"..name.." up_b}"] = 0
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args["{"..name.." down_kb}"] = 0
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args["{"..name.." up_kb}"] = 0
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args["{"..name.." down_mb}"] = 0
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args["{"..name.." up_mb}"] = 0
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args["{"..name.." down_gb}"] = 0
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args["{"..name.." up_gb}"] = 0
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nets[name].time = os.time()
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else
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-- Net stats are absolute, substract our last reading
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local interval = os.time() - nets[name].time
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nets[name].time = os.time()
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local down = (recv - nets[name][1])/interval
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local up = (send - nets[name][2])/interval
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args["{"..name.." down_b}"] = math.floor(down*10)/10
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args["{"..name.." up_b}"] = math.floor(up*10)/10
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args["{"..name.." down_kb}"] = math.floor(down/1024*10)/10
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args["{"..name.." up_kb}"] = math.floor(up/1024*10)/10
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args["{"..name.." down_mb}"] = math.floor(down/1024/1024*10)/10
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args["{"..name.." up_mb}"] = math.floor(up/1024/1024*10)/10
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args["{"..name.." down_gb}"] = math.floor(down/1024/1024/1024*10)/10
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args["{"..name.." up_gb}"] = math.floor(up/1024/1024/1024*10)/10
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end
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-- Store totals
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nets[name][1] = recv
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nets[name][2] = send
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end
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end
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f:close()
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return args
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end
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-- }}}
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setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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