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fix #288
[etc/awesome.git] / widgets / net.lua
diff --git a/widgets/net.lua b/widgets/net.lua
index ed1cf4ccc2ec71fae0806d06b1cc32e4ae28a437..302559ab32bbfc729e776e32a2d6ff812425c252 100644 (file)
--- a/widgets/net.lua
+++ b/widgets/net.lua
@@ -10,51 +10,45 @@
 local helpers      = require("lain.helpers")
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 local helpers      = require("lain.helpers")
 local naughty      = require("naughty")
 local wibox        = require("wibox")
-
 local string       = { format = string.format,
 local string       = { format = string.format,
-                       gsub   = string.gsub,
                        match  = string.match }
                        match  = string.match }
-
 local setmetatable = setmetatable
 
 -- Network infos
 -- lain.widgets.net
 
 local function worker(args)
 local setmetatable = setmetatable
 
 -- Network infos
 -- lain.widgets.net
 
 local function worker(args)
-    local net = { last_t = 0, last_r = 0 }
-
-    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 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()
-
-    net.widget = wibox.widget.textbox('')
+    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
 
     -- Compatibility with old API where iface was a string corresponding to 1 interface
-    if type(iface) == "string" then
-        iftable = {iface}
-    else
-        iftable = iface
+    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
 
     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()
         -- These are the totals over all specified interfaces
         net_now = {
 
     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
         }
             sent     = 0,
             received = 0
         }
@@ -63,30 +57,34 @@ local function worker(args)
         local total_t = 0
         local total_r = 0
 
         local total_t = 0
         local total_r = 0
 
-        for i, dev in ipairs(iftable) do
-            local dev_now = {}
-            local dev_before = net_now[dev] or net
+        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'
+            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.sent     = (now_t - dev_before.last_t) / timeout / units
+            dev_now.received = (now_r - dev_before.last_r) / timeout / units
 
 
-            if now_t ~= dev_before.last_t or now_r ~= dev_before.last_r then
-                dev_now.sent     = (now_t - (dev_before.last_t or 0)) / timeout / units
-                net_now.sent     = net_now.sent + dev_now.sent
-                dev_now.sent     = string.gsub(string.format('%.1f', dev_now.sent), ',', '.')
-                dev_now.received = (now_r - (dev_before.last_r or 0)) / timeout / units
-                net_now.received = net_now.received + dev_now.received
-                dev_now.received = string.gsub(string.format('%.1f', dev_now.received), ',', '.')
-            end
+            net_now.sent     = net_now.sent     + dev_now.sent
+            net_now.received = net_now.received + 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
+
+            -- This will become dev_before in the next update/iteration
+            net.devices[dev] = dev_now
 
             total_t  = total_t + now_t
             total_r  = total_r + now_r
 
 
             total_t  = total_t + now_t
             total_r  = total_r + now_r
 
-            net_now[dev] = dev_now
-
+            -- 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    = dev,
             if string.match(dev_now.carrier, "0") and notify == "on" and helpers.get_map(dev) then
                 naughty.notify({
                     title    = dev,
@@ -95,26 +93,33 @@ local function worker(args)
                     screen   = screen
                 })
                 helpers.set_map(dev, false)
                     screen   = screen
                 })
                 helpers.set_map(dev, false)
-            else
+            elseif string.match(dev_now.carrier, "1") then
                 helpers.set_map(dev, true)
             end
                 helpers.set_map(dev, true)
             end
+
+            -- 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
         end
 
         if total_t ~= net.last_t or total_r ~= net.last_r then
-            net_now.sent     = string.gsub(string.format('%.1f', net_now.sent), ',', '.')
-            net_now.received = string.gsub(string.format('%.1f', net_now.received), ',', '.')
-
-            widget = net.widget
-            settings()
-
-            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
         end
+
+        widget = net.widget
+        settings()
     end
 
     end
 
-    helpers.newtimer(iface, timeout, update)
+    helpers.newtimer("network", timeout, update)
 
 
-    return setmetatable(net, { __index = net.widget })
+    return net
 end
 
 return setmetatable({}, { __call = function(_, ...) return worker(...) end })
 end
 
 return setmetatable({}, { __call = function(_, ...) return worker(...) end })
awesome window-manager configuration

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