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Diffstat (limited to 'entropy.lua')
-rw-r--r-- | entropy.lua | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/entropy.lua b/entropy.lua new file mode 100644 index 0000000..43bdb80 --- /dev/null +++ b/entropy.lua @@ -0,0 +1,37 @@ +---------------------------------------------------------- +-- Licensed under the GNU General Public License version 2 +-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org> +---------------------------------------------------------- + +-- {{{ Grab environment +local io = { open = io.open } +local math = { floor = math.floor } +local string = { format = string.format } +-- }}} + + +-- Entropy: provides available system entropy +module("vicious.entropy") + + +-- {{{ Entropy widget type +function worker(format, poolsize) + -- Don't waste time opening the poolsize, Linux 2.6 has a default + -- entropy pool of 4096-bits, if needed specify otherwise + if poolsize == nil then + poolsize = 4096 + end + + -- Get available entropy + local f = io.open("/proc/sys/kernel/random/entropy_avail") + local ent_avail = f:read() + f:close() + + -- Calculate percentage + ent_avail_percent = math.floor(ent_avail * 100 / poolsize) + -- This data is intended for a progressbar + ent_avail_percent = string.format("%0d", ent_avail_percent) + + return {ent_avail, ent_avail_percent} +end +-- }}} |