]> 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 702937cc7938850f4bcc4fe8fb8503ac305c2a91..922e5e18a19a6b3f573b1e2b79a0f81c18c739d3 100644 (file)
 --]]
 
 local helpers      = require("lain.helpers")
-
-local notify_fg    = require("beautiful").fg_focus
 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 }
+    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
+
+    -- 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 {}
+
 
     function net.get_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 ~= nil then
-            return ws:match("(%w+):")
-        else
-            return "network off"
-        end
+        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
 
-    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
+    if #net.iface == 0 then net.get_device() end
 
-    iface = args.iface or net.get_device()
+    function update()
+        -- These are the totals over all specified interfaces
+        net_now = {
+            -- New api - Current state of requested devices
+            devices  = {},
+            -- Bytes since last iteration
+            sent     = 0,
+            received = 0
+        }
 
-    net.widget = wibox.widget.textbox('')
+        -- Total bytes transfered
+        local total_t = 0
+        local total_r = 0
 
-    helpers.set_map(iface, true)
+        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)
 
-    function update()
-        net_now = {}
+            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"
 
-        if iface == "" or string.match(iface, "network off")
-        then
-            iface = net.get_device()
-        end
+            dev_now.sent     = (now_t - dev_before.last_t) / timeout / units
+            dev_now.received = (now_r - dev_before.last_r) / timeout / units
 
-        net_now.carrier = helpers.first_line('/sys/class/net/' .. iface ..
-                                           '/carrier') or "0"
-        net_now.state = helpers.first_line('/sys/class/net/' .. iface ..
-                                           '/operstate') or "down"
-        local now_t = helpers.first_line('/sys/class/net/' .. iface ..
-                                           '/statistics/tx_bytes') or 0
-        local now_r = helpers.first_line('/sys/class/net/' .. iface ..
-                                           '/statistics/rx_bytes') or 0
+            net_now.sent     = net_now.sent     + dev_now.sent
+            net_now.received = net_now.received + dev_now.received
 
-        net_now.sent = (now_t - net.last_t) / timeout / units
-        net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ",", ".")
+            dev_now.sent     = string.format('%.1f', dev_now.sent)
+            dev_now.received = string.format('%.1f', dev_now.received)
 
-        net_now.received = (now_r - net.last_r) / timeout / units
-        net_now.received = string.gsub(string.format('%.1f', net_now.received), ",", ".")
+            dev_now.last_t   = now_t
+            dev_now.last_r   = now_r
 
-        widget = net.widget
-        settings()
+            -- This will become dev_before in the next update/iteration
+            net.devices[dev] = dev_now
 
-        net.last_t = now_t
-        net.last_r = now_r
+            total_t  = total_t + now_t
+            total_r  = total_r + now_r
 
-        if net_now.carrier ~= "1" and notify == "on"
-        then
-            if helpers.get_map(iface)
-            then
+            -- Notify only once when connection is loss
+            if string.match(dev_now.carrier, "0") and notify == "on" and helpers.get_map(dev) then
                 naughty.notify({
-                    title    = iface,
+                    title    = dev,
                     text     = "no carrier",
-                    timeout  = 7,
-                    position = "top_left",
                     icon     = helpers.icons_dir .. "no_net.png",
-                    fg       = notify_fg or "#FFFFFF",
                     screen   = screen
                 })
-                helpers.set_map(iface, false)
+                helpers.set_map(dev, false)
+            elseif string.match(dev_now.carrier, "1") then
+                helpers.set_map(dev, true)
             end
-        else
-            helpers.set_map(iface, true)
+
+            -- Old api compatibility
+            net_now.carrier      = dev_now.carrier
+            net_now.state        = dev_now.state
+            -- And new api
+            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
+            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 })