--- /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 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