diff options
Diffstat (limited to 'widgets/mem.lua')
-rw-r--r-- | widgets/mem.lua | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/widgets/mem.lua b/widgets/mem.lua new file mode 100644 index 0000000..c2f5886 --- /dev/null +++ b/widgets/mem.lua @@ -0,0 +1,49 @@ +--------------------------------------------------- +-- Licensed under the GNU General Public License v2 +-- * (c) 2010, Adrian C. <anrxc@sysphere.org> +-- * (c) 2009, Lucas de Vries <lucas@glacicle.com> +--------------------------------------------------- + +-- {{{ Grab environment +local io = { lines = io.lines } +local setmetatable = setmetatable +local math = { floor = math.floor } +local string = { gmatch = string.gmatch } +-- }}} + + +-- Mem: provides RAM and Swap usage statistics +module("vicious.widgets.mem") + + +-- {{{ Memory widget type +local function worker(format) + local mem = { buf = {}, swp = {} } + + -- Get MEM info + for line in io.lines("/proc/meminfo") do + for k, v in string.gmatch(line, "([%a]+):[%s]+([%d]+).+") do + if k == "MemTotal" then mem.total = math.floor(v/1024) + elseif k == "MemFree" then mem.buf.f = math.floor(v/1024) + elseif k == "Buffers" then mem.buf.b = math.floor(v/1024) + elseif k == "Cached" then mem.buf.c = math.floor(v/1024) + elseif k == "SwapTotal" then mem.swp.t = math.floor(v/1024) + elseif k == "SwapFree" then mem.swp.f = math.floor(v/1024) + end + end + end + + -- Calculate memory percentage + mem.free = mem.buf.f + mem.buf.b + mem.buf.c + mem.inuse = mem.total - mem.free + mem.usep = math.floor(mem.inuse / mem.total * 100) + -- Calculate swap percentage + mem.swp.inuse = mem.swp.t - mem.swp.f + mem.swp.usep = math.floor(mem.swp.inuse / mem.swp.t * 100) + + return {mem.usep, mem.inuse, mem.total, mem.free, + mem.swp.usep, mem.swp.inuse, mem.swp.t, mem.swp.f} +end +-- }}} + +setmetatable(_M, { __call = function(_, ...) return worker(...) end }) |