#211: wiki updated

[etc/awesome.git] / widgets / net.lua

diff --git a/widgets/net.lua b/widgets/net.lua
index 702937cc7938850f4bcc4fe8fb8503ac305c2a91..18831685d1a11c73aab9f6ab757e7c54e2e7fd35 100644 (file)
--- a/widgets/net.lua
+++ b/widgets/net.lua
@@ -8,8 +8,6 @@
 --]]
 
 local helpers      = require("lain.helpers")
 --]]
 
 local helpers      = require("lain.helpers")

-
-local notify_fg    = require("beautiful").fg_focus

 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 


@@ -23,78 +21,119 @@ local setmetatable = setmetatable
 -- lain.widgets.net
 
 local function worker(args)
 -- lain.widgets.net
 
 local function worker(args)

-    local net = { last_t = 0, last_r = 0 }
+    local net = { last_t = 0, last_r = 0, devices = {} }

 
 

-    function net.get_device()
+    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")
         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
+        if ws then return { ws:match("(%w+):") }
+        else return {} end

     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 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 settings = args.settings or function() end

-
-    iface = args.iface or net.get_device()
+    local iface    = args.iface or net.get_first_device()

 
     net.widget = wibox.widget.textbox('')
 
 
     net.widget = wibox.widget.textbox('')
 

-    helpers.set_map(iface, true)
+    -- Compatibility with old API where iface was a string corresponding to 1 interface
+    if type(iface) == "string" then
+        iftable = {iface}
+    else
+        iftable = iface
+    end

 
 

-    function update()
-        net_now = {}
+    -- Mark all devices as initially online/active
+    for i, dev in ipairs(iftable) do
+        helpers.set_map(dev, true)
+    end

 
 

-        if iface == "" or string.match(iface, "network off")
-        then
-            iface = net.get_device()
+    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
 
         end
 

-        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
+        -- 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_now.sent = (now_t - net.last_t) / timeout / units
-        net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ",", ".")
+        -- Total bytes transfered
+        local total_t = 0
+        local total_r = 0

 
 

-        net_now.received = (now_r - net.last_r) / timeout / units
-        net_now.received = string.gsub(string.format('%.1f', net_now.received), ",", ".")
+        for i, dev in ipairs(iftable) do
+            local dev_now = {}
+            local dev_before = net.devices[dev] or { last_t = 0, last_r = 0 }

 
 

-        widget = net.widget
-        settings()
+            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
+
+            net_now.sent     = net_now.sent     + dev_now.sent
+            net_now.received = net_now.received + dev_now.received

 
 

-        net.last_t = now_t
-        net.last_r = now_r
+            dev_now.sent     = string.gsub(string.format('%.1f', dev_now.sent), ',', '.')
+            dev_now.received = string.gsub(string.format('%.1f', dev_now.received), ',', '.')

 
 

-        if net_now.carrier ~= "1" and notify == "on"
-        then
-            if helpers.get_map(iface)
-            then
+            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
+
+            -- 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({
                 naughty.notify({

-                    title    = iface,
+                    title    = dev,

                     text     = "no carrier",
                     text     = "no carrier",

-                    timeout  = 7,
-                    position = "top_left",

                     icon     = helpers.icons_dir .. "no_net.png",
                     icon     = helpers.icons_dir .. "no_net.png",

-                    fg       = notify_fg or "#FFFFFF",

                     screen   = screen
                 })
                     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
             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
         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
+        end
+
+        widget = net.widget
+        settings()

     end
 
     helpers.newtimer(iface, timeout, update)
     end
 
     helpers.newtimer(iface, timeout, update)