]> 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 branch 'master' of https://github.com/trap000d/lain into trap000d-master
[etc/awesome.git] / widgets / net.lua
index b3deca6b471a68bd4e3640b9a4f54fc49874ca37..223f3aff15f409e8518727c54a7d4475ce5d9a65 100644 (file)
 --]]
 
 local helpers      = require("lain.helpers")
-
-local notify_fg    = require("beautiful").fg_focus
 local naughty      = require("naughty")
 local wibox        = require("wibox")
-
-local io           = io
-local tostring     = tostring
 local string       = { format = string.format,
-                       gsub   = string.gsub }
-
+                       match  = string.match }
 local setmetatable = setmetatable
 
 -- Network infos
 -- lain.widgets.net
-local net = {
-    last_t = 0,
-    last_r = 0
-}
-
-function net.get_device()
-    f = io.popen("ip link show | cut -d' ' -f2,9")
-    ws = f:read("*all")
-    f:close()
-    ws = ws:match("%w+: UP")
-    if ws ~= nil then
-        return ws:gsub(": UP", "")
-    else
-        return ""
-    end
-end
 
 local function worker(args)
-    local args = args or {}
-    local timeout = args.timeout or 2
-    local iface = args.iface or net.get_device()
-    local units = args.units or 1024 --kb
-    local settings = args.settings or function() end
+    local net = { widget = wibox.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()
+        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
 
-    net.widget = wibox.widget.textbox('')
+    if #net.iface == 0 then net.get_device() end
 
-    helpers.set_map(iface, true)
+    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
+        }
 
-    function update() 
-        net_now = {}
+        -- Total bytes transfered
+        local total_t = 0
+        local total_r = 0
 
-        if iface == "" then iface = net.get_device() end
+        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)
 
-        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
+            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"
 
-        net_now.sent = tostring((now_t - net.last_t) / timeout / units)
-        net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ",", ".")
+            dev_now.sent     = (now_t - dev_before.last_t) / timeout / units
+            dev_now.received = (now_r - dev_before.last_r) / timeout / units
 
-        net_now.received = tostring((now_r - net.last_r) / timeout / units)
-        net_now.received = string.gsub(string.format('%.1f', net_now.received), ",", ".")
+            net_now.sent     = net_now.sent     + dev_now.sent
+            net_now.received = net_now.received + dev_now.received
 
-        widget = net.widget
-        settings()
+            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
 
-        net.last_t = now_t
-        net.last_r = now_r
+            -- This will become dev_before in the next update/iteration
+            net.devices[dev] = dev_now
 
-        if net_now.carrier ~= "1"
-        then
-            if helpers.get_map(iface)
-            then
-                n_title = iface
-                if n_title == "" then n_title = "network" end
+            total_t  = total_t + now_t
+            total_r  = total_r + now_r
+
+            -- 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    = n_title,
+                    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)
+
+            net_now.carrier      = dev_now.carrier
+            net_now.state        = dev_now.state
+            net_now.devices[dev] = dev_now
+            -- 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)
-    return net.widget
+    helpers.newtimer("network", timeout, update)
+
+    return net
 end
 
-return setmetatable(net, { __call = function(_, ...) return worker(...) end })
+return setmetatable({}, { __call = function(_, ...) return worker(...) end })