port net widget to freebsd

widgets/net_freebsd.lua

@@ -0,0 +1,83 @@
+-- {{{ Grab environment
+local tonumber = tonumber
+local os = { time = os.time }
+local setmetatable = setmetatable
+local helpers = require("vicious.helpers")
+local io = { popen = io.popen }
+local string = { match = string.match }
+-- }}}
+
+
+-- Net: provides state and usage statistics of all network interfaces
+-- vicious.widgets.net
+local net_freebsd = {}
+
+
+-- 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, warg)
+    if not warg then return end
+
+    local args = {}
+    local buffer = nil
+    local f = io.popen("netstat -n -b -I " .. helpers.shellquote(warg))
+    local now = os.time()
+    
+    for line in f:lines() do
+        if not (line:find("<Link") or line:find("Name")) then -- skipping missleading lines
+            local split = { line:match(("([^%s]*)%s*"):rep(12)) }
+
+            if buffer == nil then
+                buffer = { tonumber(split[8]), tonumber(split[11]) } -- recv (field 8) and send (field 11)
+            else
+                buffer = { buffer[1] + tonumber(split[8]), buffer[2] + tonumber(split[11]) }
+            end
+        end
+    end
+
+    f:close()
+
+    if buffer == nil then
+        args["{carrier}"] = 0
+        helpers.uformat(args, "rx", 0, unit)
+        helpers.uformat(args, "tx", 0, unit)
+        helpers.uformat(args, "down", 0, unit)
+        helpers.uformat(args, "up",   0, unit)
+    else
+        args["{carrier}"] = 1
+        helpers.uformat(args, "rx", buffer[1], unit)
+        helpers.uformat(args, "tx", buffer[2], unit)
+
+        if next(nets) == nil then
+            helpers.uformat(args, "down", 0, unit)
+            helpers.uformat(args, "up",   0, unit)
+        else
+            local interval = now - nets["time"]
+            if interval <= 0 then interval = 1 end
+
+            local down = (buffer[1] - nets[1]) / interval
+            local up   = (buffer[2] - nets[2]) / interval
+
+            helpers.uformat(args, "down", down, unit)
+            helpers.uformat(args, "up",   up,   unit)
+        end
+        
+        nets["time"] = now
+
+        -- Store totals
+        nets[1] = buffer[1]
+        nets[2] = buffer[2]
+    end
+
+    return args
+
+end
+-- }}}
+
+return setmetatable(net_freebsd, { __call = function(_, ...) return worker(...) end })

widgets/net_linux.lua

@@ -16,7 +16,7 @@ local helpers = require("vicious.helpers")
 
 -- Net: provides state and usage statistics of all network interfaces
 -- vicious.widgets.net
-local net = {}
+local net_linux = {}
 
 
 -- Initialize function tables
@@ -77,4 +77,4 @@ local function worker(format)
 end
 -- }}}
 
-return setmetatable(net, { __call = function(_, ...) return worker(...) end })
+return setmetatable(net_linux, { __call = function(_, ...) return worker(...) end })