50 lines
1.7 KiB
Lua
50 lines
1.7 KiB
Lua
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-- Licensed under the GNU General Public License v2
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-- * (c) 2010, Adrian C. <anrxc@sysphere.org>
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-- * (c) 2009, Lucas de Vries <lucas@glacicle.com>
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---------------------------------------------------
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-- {{{ Grab environment
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local io = { lines = io.lines }
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local setmetatable = setmetatable
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local math = { floor = math.floor }
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local string = { gmatch = string.gmatch }
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-- }}}
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-- Mem: provides RAM and Swap usage statistics
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module("vicious.widgets.mem")
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-- {{{ Memory widget type
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local function worker(format)
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local mem = { buf = {}, swp = {} }
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-- Get MEM info
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for line in io.lines("/proc/meminfo") do
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for k, v in string.gmatch(line, "([%a]+):[%s]+([%d]+).+") do
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if k == "MemTotal" then mem.total = math.floor(v/1024)
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elseif k == "MemFree" then mem.buf.f = math.floor(v/1024)
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elseif k == "Buffers" then mem.buf.b = math.floor(v/1024)
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elseif k == "Cached" then mem.buf.c = math.floor(v/1024)
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elseif k == "SwapTotal" then mem.swp.t = math.floor(v/1024)
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elseif k == "SwapFree" then mem.swp.f = math.floor(v/1024)
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end
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end
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end
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-- Calculate memory percentage
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mem.free = mem.buf.f + mem.buf.b + mem.buf.c
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mem.inuse = mem.total - mem.free
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mem.usep = math.floor(mem.inuse / mem.total * 100)
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-- Calculate swap percentage
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mem.swp.inuse = mem.swp.t - mem.swp.f
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mem.swp.usep = math.floor(mem.swp.inuse / mem.swp.t * 100)
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return {mem.usep, mem.inuse, mem.total, mem.free,
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mem.swp.usep, mem.swp.inuse, mem.swp.t, mem.swp.f}
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end
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-- }}}
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setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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