39 lines
1.2 KiB
Lua
39 lines
1.2 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 io = { open = io.open }
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local setmetatable = setmetatable
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local math = { floor = math.floor }
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local string = { format = string.format }
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-- }}}
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-- Entropy: provides available system entropy
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module("vicious.entropy")
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-- {{{ Entropy widget type
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local function worker(format, poolsize)
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-- Don't waste time opening the poolsize, Linux 2.6 has a default
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-- entropy pool of 4096-bits, if needed specify otherwise
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if poolsize == nil then poolsize = 4096 end
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-- Get available entropy
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local f = io.open("/proc/sys/kernel/random/entropy_avail")
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local ent_avail = f:read("*line")
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f:close()
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-- Calculate percentage
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ent_avail_percent = math.floor(ent_avail * 100 / poolsize)
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-- This data is intended for a progressbar
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ent_avail_percent = string.format("%0d", ent_avail_percent)
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return {ent_avail, ent_avail_percent}
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end
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-- }}}
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setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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