56 lines
1.9 KiB
Lua
56 lines
1.9 KiB
Lua
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-- Licensed under the GNU General Public License version 2
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-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
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----------------------------------------------------------
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-- {{{ Grab environment
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local tonumber = tonumber
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local io = { open = io.open }
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local setmetatable = setmetatable
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local math = { floor = math.floor }
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-- }}}
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-- Mem: provides RAM and Swap usage statistics
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module("vicious.mem")
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-- {{{ Memory widget type
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function worker(format)
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-- Get meminfo
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local f = io.open("/proc/meminfo")
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-- Get data
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for line in f:lines() do
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if line:match("^MemTotal.*") then
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mem_total = math.floor(tonumber(line:match("([%d]+)")) / 1024)
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elseif line:match("^MemFree.*") then
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free = math.floor(tonumber(line:match("([%d]+)")) / 1024)
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elseif line:match("^Buffers.*") then
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buffers = math.floor(tonumber(line:match("([%d]+)")) / 1024)
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elseif line:match("^Cached.*") then
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cached = math.floor(tonumber(line:match("([%d]+)")) / 1024)
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-- Get swap stats while we're at it
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elseif line:match("^SwapTotal.*") then
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swap_total = math.floor(tonumber(line:match("([%d]+)")) / 1024)
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elseif line:match("^SwapFree.*") then
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swap_free = math.floor(tonumber(line:match("([%d]+)")) / 1024)
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end
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end
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f:close()
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-- Calculate percentage
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mem_free = free + buffers + cached
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mem_inuse = mem_total - mem_free
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mem_usepercent = math.floor(mem_inuse/mem_total*100)
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-- Calculate swap percentage
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swap_inuse = swap_total - swap_free
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swap_usepercent = math.floor(swap_inuse/swap_total*100)
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return {mem_usepercent, mem_inuse, mem_total, mem_free,
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swap_usepercent, swap_inuse, swap_total, swap_free}
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end
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-- }}}
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setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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