lain/widget/mem.lua

52 lines
1.8 KiB
Lua

--[[
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 gmatch, lines, floor = string.gmatch, io.lines, math.floor
-- Memory usage (ignoring caches)
-- lain.widget.mem
local function factory(args)
local mem = { widget = wibox.widget.textbox() }
local args = args or {}
local timeout = args.timeout or 2
local settings = args.settings or function() end
function mem.update()
mem_now = {}
for line in lines("/proc/meminfo") do
for k, v in gmatch(line, "([%a]+):[%s]+([%d]+).+") do
if k == "MemTotal" then mem_now.total = floor(v / 1024 + 0.5)
elseif k == "MemFree" then mem_now.free = floor(v / 1024 + 0.5)
elseif k == "Buffers" then mem_now.buf = floor(v / 1024 + 0.5)
elseif k == "Cached" then mem_now.cache = floor(v / 1024 + 0.5)
elseif k == "SwapTotal" then mem_now.swap = floor(v / 1024 + 0.5)
elseif k == "SwapFree" then mem_now.swapf = floor(v / 1024 + 0.5)
elseif k == "SReclaimable" then mem_now.srec = floor(v / 1024 + 0.5)
end
end
end
mem_now.used = mem_now.total - mem_now.free - mem_now.buf - mem_now.cache - mem_now.srec
mem_now.swapused = mem_now.swap - mem_now.swapf
mem_now.perc = math.floor(mem_now.used / mem_now.total * 100)
widget = mem.widget
settings()
end
helpers.newtimer("mem", timeout, mem.update)
return mem
end
return factory