53 lines
1.8 KiB
Lua
53 lines
1.8 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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-- vicious.widgets.mem
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local 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.bcuse = _mem.total - _mem.buf.f
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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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_mem.bcuse }
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end
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-- }}}
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return setmetatable(mem, { __call = function(_, ...) return worker(...) end })
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