[cpu_freebsd] Deprecate synchronous sysctl

Changes.md

@@ -19,7 +19,8 @@ Fixed:
 
 - Deprecate the use of `io.popen` in following widgets:
     * wifi_linux, wifiiw_linux, hwmontemp_linux, hddtemp_linux
-    * bat_freebsd, mem_freebsd, net_freebsd, thermal_freebsd, uptime_freebsd
+    * bat_freebsd, mem_freebsd, net_freebsd, thermal_freebsd, uptime_freebsd,
+      cpu_freebsd
     * volume, gmail, mdir, mpd, fs
 - [mpd] Lua 5.3 compatibility (for real this time); also correct a typo
 - [pkg,weather,contrib/btc] Allow function call without Awesome

widgets/cpu_freebsd.lua

@@ -1,7 +1,5 @@
 -- {{{ Grab environment
 local helpers = require("vicious.helpers")
-local tonumber = tonumber
-local setmetatable = setmetatable
 local math = { floor = math.floor }
 local string = { gmatch = string.gmatch }
 -- }}}
@@ -16,15 +14,15 @@ local cpu_total = {}
 local cpu_idle = {}
 
 -- {{{ CPU widget type
-local function worker(format)
+function cpu_freebsd.async(format, warg, callback)
-    local cp_times = helpers.sysctl("kern.cp_times")
     local matches = {}
     local tmp_total = {}
     local tmp_idle = {}
     local tmp_usage = {}
 
+    helpers.sysctl_async({ "kern.cp_times" }, function(ret)
         -- Read input data
-    for v in string.gmatch(cp_times, "([%d]+)") do
+        for v in string.gmatch(ret["kern.cp_times"], "([%d]+)") do
             table.insert(matches, v)
         end
 
@@ -62,8 +60,9 @@ local function worker(format)
         cpu_total = tmp_total
         cpu_idle = tmp_idle
 
-    return tmp_usage
+        return callback(tmp_usage)
+    end)
 end
 -- }}}
 
-return setmetatable(cpu_freebsd, { __call = function(_, ...) return worker(...) end })
+return helpers.setasyncall(cpu_freebsd)

widgets/thermal_freebsd.lua

@@ -16,15 +16,7 @@ function thermal_freebsd.async(format, warg, callback)
     helpers.sysctl_async(warg, function(ret)
         local thermals = {}
 
-        for k, v in pairs(ret) do
-            print(k, v)
-        end
-
         for i=1,#warg do
-            print(warg[i])
-            print(ret[warg[i]])
-            print(ret["hw.acpi.thermal.tz0.temperature"])
-            print(ret['hw.acpi.thermal.tz0.temperature'])
             if ret[warg[i]] ~= nil then
                 thermals[i] = string.match(ret[warg[i]], "[%d]+")
             else

widgets/uptime_freebsd.lua

@@ -1,6 +1,5 @@
 -- {{{ Grab environment
 local tonumber = tonumber
-local setmetatable = setmetatable
 local math = { floor = math.floor }
 local string = { match = string.match }
 local helpers = require("vicious.helpers")