mirror of https://github.com/lcpz/lain.git
81 lines
2.8 KiB
Lua
81 lines
2.8 KiB
Lua
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--[[
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Licensed under GNU General Public License v2
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* (c) 2013, Luke Bonham
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* (c) 2010-2012, Peter Hofmann
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--]]
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local helpers = require("lain.helpers")
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local wibox = require("wibox")
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local io = { lines = io.lines }
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local math = { floor = math.floor }
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local string = { gmatch = string.gmatch }
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local setmetatable = setmetatable
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-- Memory usage
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-- lain.widgets.mem
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local mem = {}
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local function worker(args)
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local args = args or {}
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local timeout = args.timeout or 1
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local settings = args.settings or function() end
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mem.widget = wibox.widget.textbox('')
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helpers.set_map("mem_last_total", 0)
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helpers.set_map("mem_last_free", 0)
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helpers.set_map("mem_last_buf", 0)
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helpers.set_map("mem_last_cache", 0)
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helpers.set_map("mem_last_swap", 0)
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helpers.set_map("mem_last_swapf", 0)
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function update()
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mem_now = {}
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for line in io.lines("/proc/meminfo")
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do
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for k, v in string.gmatch(line, "([%a]+):[%s]+([%d]+).+")
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do
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if k == "MemTotal" then mem_now.total = math.floor(v / 1024)
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elseif k == "MemFree" then mem_now.free = math.floor(v / 1024)
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elseif k == "Buffers" then mem_now.buf = math.floor(v / 1024)
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elseif k == "Cached" then mem_now.cache = math.floor(v / 1024)
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elseif k == "SwapTotal" then mem_now.swap = math.floor(v / 1024)
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elseif k == "SwapFree" then mem_now.swapf = math.floor(v / 1024)
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end
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end
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end
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if mem_now.total ~= helpers.set_map("mem_last_total")
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or mem_now.free ~= helpers.set_map("mem_last_free")
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or mem_now.buf ~= helpers.set_map("mem_last_buf")
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or mem_now.cache ~= helpers.set_map("mem_last_cache")
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or mem_now.swap ~= helpers.set_map("mem_last_swap")
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or mem_now.swapf ~= helpers.set_map("mem_last_swapf")
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then
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mem_now.used = mem_now.total - (mem_now.free + mem_now.buf + mem_now.cache)
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mem_now.swapused = mem_now.swap - mem_now.swapf
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widget = mem.widget
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settings()
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helpers.set_map("mem_last_total", mem_now.total)
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helpers.set_map("mem_last_free", mem_now.free)
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helpers.set_map("mem_last_buf", mem_now.buf)
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helpers.set_map("mem_last_cache", mem_now.cache)
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helpers.set_map("mem_last_swap", mem_now.swap)
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helpers.set_map("mem_last_swapf", mem_now.swapf)
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end
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end
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helpers.newtimer("mem", timeout, update)
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return mem.widget
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end
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return setmetatable(mem, { __call = function(_, ...) return worker(...) end })
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