+++ /dev/null
-
---[[
-
- Licensed under GNU General Public License v2
- * (c) 2013, Luke Bonham
- * (c) 2010-2012, Peter Hofmann
-
---]]
-
-local helpers = require("lain.helpers")
-local wibox = require("wibox")
-local math = { ceil = math.ceil }
-local string = { format = string.format,
- gmatch = string.gmatch }
-local tostring = tostring
-
--- CPU usage
--- lain.widget.cpu
-
-local function factory(args)
- local cpu = { core = {}, widget = wibox.widget.textbox() }
- local args = args or {}
- local timeout = args.timeout or 2
- local settings = args.settings or function() end
-
- function cpu.update()
- -- Read the amount of time the CPUs have spent performing
- -- different kinds of work. Read the first line of /proc/stat
- -- which is the sum of all CPUs.
- local times = helpers.lines_match("cpu","/proc/stat")
-
- for index,time in pairs(times) do
- local coreid = index - 1
- local core = cpu.core[coreid] or
- { last_active = 0 , last_total = 0, usage = 0 }
- local at = 1
- local idle = 0
- local total = 0
-
- for field in string.gmatch(time, "[%s]+([^%s]+)") do
- -- 4 = idle, 5 = ioWait. Essentially, the CPUs have done
- -- nothing during these times.
- if at == 4 or at == 5 then
- idle = idle + field
- end
- total = total + field
- at = at + 1
- end
-
- local active = total - idle
-
- if core.last_active ~= active or core.last_total ~= total then
- -- Read current data and calculate relative values.
- local dactive = active - core.last_active
- local dtotal = total - core.last_total
- local usage = math.ceil((dactive / dtotal) * 100)
-
- core.last_active = active
- core.last_total = total
- core.usage = usage
-
- -- Save current data for the next run.
- cpu.core[coreid] = core
- end
- end
-
- cpu_now = cpu.core
- cpu_now.usage = cpu_now[0].usage
- widget = cpu.widget
-
- settings()
- end
-
- helpers.newtimer("cpu", timeout, cpu.update)
-
- return cpu
-end
-
-return factory
projects / etc / awesome.git / blobdiff