]> git.madduck.net Git - etc/awesome.git/blobdiff - widgets/net.lua

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

Merge pull request #282 from 2009/patch-1
[etc/awesome.git] / widgets / net.lua
index 18831685d1a11c73aab9f6ab757e7c54e2e7fd35..922e5e18a19a6b3f573b1e2b79a0f81c18c739d3 100644 (file)
 local helpers      = require("lain.helpers")
 local naughty      = require("naughty")
 local wibox        = require("wibox")
-
 local string       = { format = string.format,
-                       gsub   = string.gsub,
                        match  = string.match }
-
+local tostring     = tostring
 local setmetatable = setmetatable
 
 -- Network infos
 -- lain.widgets.net
 
 local function worker(args)
-    local net = { last_t = 0, last_r = 0, devices = {} }
-
-    function net.get_first_device()
-        local ws = helpers.read_pipe("ip link show | cut -d' ' -f2,9")
-        ws = ws:match("%w+: UP") or ws:match("ppp%w+: UNKNOWN")
-        if ws then return { ws:match("(%w+):") }
-        else return {} end
-    end
+    local net = helpers.make_widget_textbox()
+    net.last_t = 0
+    net.last_r = 0
+    net.devices = {}
+
+    local args       = args or {}
+    local timeout    = args.timeout or 2
+    local units      = args.units or 1024 --kb
+    local notify     = args.notify or "on"
+    local screen     = args.screen or 1
+    local settings   = args.settings or function() end
 
-    local args     = args or {}
-    local timeout  = args.timeout or 2
-    local units    = args.units or 1024 --kb
-    local notify   = args.notify or "on"
-    local screen   = args.screen or 1
-    local settings = args.settings or function() end
-    local iface    = args.iface or net.get_first_device()
+    -- Compatibility with old API where iface was a string corresponding to 1 interface
+    net.iface = (args.iface and (type(args.iface) == "string" and {args.iface}) or (type(args.iface) == "table" and args.iface)) or {}
 
-    net.widget = wibox.widget.textbox('')
 
-    -- Compatibility with old API where iface was a string corresponding to 1 interface
-    if type(iface) == "string" then
-        iftable = {iface}
-    else
-        iftable = iface
+    function net.get_device()
+        helpers.async(string.format("ip link show", device_cmd), function(ws)
+            ws = ws:match("(%w+): <BROADCAST,MULTICAST,.-UP,LOWER_UP>")
+            net.iface = ws and { ws } or {}
+        end)
     end
 
-    -- Mark all devices as initially online/active
-    for i, dev in ipairs(iftable) do
-        helpers.set_map(dev, true)
-    end
+    if #net.iface == 0 then net.get_device() end
 
     function update()
-        -- This check is required to ensure we keep looking for one device if
-        -- none is found by net.get_first_device() at startup (i.e. iftable = {})
-        if next(iftable) == nil then
-            iftable = net.get_first_device()
-        end
-
         -- These are the totals over all specified interfaces
         net_now = {
             -- New api - Current state of requested devices
@@ -72,15 +58,14 @@ local function worker(args)
         local total_t = 0
         local total_r = 0
 
-        for i, dev in ipairs(iftable) do
-            local dev_now = {}
+        for i, dev in ipairs(net.iface) do
+            local dev_now    = {}
             local dev_before = net.devices[dev] or { last_t = 0, last_r = 0 }
+            local now_t      = tonumber(helpers.first_line(string.format("/sys/class/net/%s/statistics/tx_bytes", dev)) or 0)
+            local now_r      = tonumber(helpers.first_line(string.format("/sys/class/net/%s/statistics/rx_bytes", dev)) or 0)
 
-            dev_now.carrier  = helpers.first_line(string.format('/sys/class/net/%s/carrier', dev)) or '0'
-            dev_now.state    = helpers.first_line(string.format('/sys/class/net/%s/operstate', dev)) or 'down'
-
-            local now_t      = tonumber(helpers.first_line(string.format('/sys/class/net/%s/statistics/tx_bytes', dev)) or 0)
-            local now_r      = tonumber(helpers.first_line(string.format('/sys/class/net/%s/statistics/rx_bytes', dev)) or 0)
+            dev_now.carrier  = helpers.first_line(string.format("/sys/class/net/%s/carrier", dev)) or "0"
+            dev_now.state    = helpers.first_line(string.format("/sys/class/net/%s/operstate", dev)) or "down"
 
             dev_now.sent     = (now_t - dev_before.last_t) / timeout / units
             dev_now.received = (now_r - dev_before.last_r) / timeout / units
@@ -88,8 +73,8 @@ local function worker(args)
             net_now.sent     = net_now.sent     + dev_now.sent
             net_now.received = net_now.received + dev_now.received
 
-            dev_now.sent     = string.gsub(string.format('%.1f', dev_now.sent), ',', '.')
-            dev_now.received = string.gsub(string.format('%.1f', dev_now.received), ',', '.')
+            dev_now.sent     = string.format('%.1f', dev_now.sent)
+            dev_now.received = string.format('%.1f', dev_now.received)
 
             dev_now.last_t   = now_t
             dev_now.last_r   = now_r
@@ -120,25 +105,22 @@ local function worker(args)
             net_now.devices[dev] = dev_now
             -- With the new api new_now.sent and net_now.received will be the
             -- totals across all specified devices
-
         end
 
         if total_t ~= net.last_t or total_r ~= net.last_r then
-            -- Convert to a string to round the digits after the float point
-            net_now.sent     = string.gsub(string.format('%.1f', net_now.sent), ',', '.')
-            net_now.received = string.gsub(string.format('%.1f', net_now.received), ',', '.')
-
-            net.last_t = total_t
-            net.last_r = total_r
+            net_now.sent     = string.format('%.1f', net_now.sent)
+            net_now.received = string.format('%.1f', net_now.received)
+            net.last_t       = total_t
+            net.last_r       = total_r
         end
 
         widget = net.widget
         settings()
     end
 
-    helpers.newtimer(iface, timeout, update)
+    helpers.newtimer("net-" .. tostring(net.iface), timeout, update)
 
-    return setmetatable(net, { __index = net.widget })
+    return net
 end
 
 return setmetatable({}, { __call = function(_, ...) return worker(...) end })