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Diffstat (limited to 'mem.lua')
| -rw-r--r-- | mem.lua | 76 |
1 files changed, 76 insertions, 0 deletions
@@ -0,0 +1,76 @@ +---------------------------------------------------------- +-- Licensed under the GNU General Public License version 2 +-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org> +---------------------------------------------------------- + +-- {{{ Grab environment +local type = type +local tonumber = tonumber +local io = { open = io.open } +local math = { floor = math.floor } +local helpers = require("vicious.helpers") +-- }}} + + +-- Mem: provides RAM and Swap usage statistics +module("vicious.mem") + + +-- {{{ Memory widget type +function worker(format, padding) + -- Get meminfo + local f = io.open("/proc/meminfo") + + -- Get data + for line in f:lines() do + if line:match("^MemTotal.*") then + mem_total = math.floor(tonumber(line:match("([%d]+)")) / 1024) + elseif line:match("^MemFree.*") then + free = math.floor(tonumber(line:match("([%d]+)")) / 1024) + elseif line:match("^Buffers.*") then + buffers = math.floor(tonumber(line:match("([%d]+)")) / 1024) + elseif line:match("^Cached.*") then + cached = math.floor(tonumber(line:match("([%d]+)")) / 1024) + -- Get swap stats while we're at it + elseif line:match("^SwapTotal.*") then + swap_total = math.floor(tonumber(line:match("([%d]+)")) / 1024) + elseif line:match("^SwapFree.*") then + swap_free = math.floor(tonumber(line:match("([%d]+)")) / 1024) + end + end + f:close() + + -- Calculate percentage + mem_free = free + buffers + cached + mem_inuse = mem_total - mem_free + mem_usepercent = math.floor(mem_inuse/mem_total*100) + -- Calculate swap percentage + swap_inuse = swap_total - swap_free + swap_usepercent = math.floor(swap_inuse/swap_total*100) + + if padding then + if type(padding) == "table" then + mem_usepercent = helpers.padd(mem_usepercent, padding[1]) + mem_inuse = helpers.padd(mem_inuse, padding[2]) + mem_total = helpers.padd(mem_total, padding[3]) + mem_free = helpers.padd(mem_free, padding[4]) + swap_usepercent = helpers.padd(swap_usepercent, padding[1]) + swap_inuse = helpers.padd(swap_inuse, padding[2]) + swap_total = helpers.padd(swap_total, padding[3]) + swap_free = helpers.padd(swap_free, padding[4]) + else + mem_usepercent = helpers.padd(mem_usepercent, padding) + mem_inuse = helpers.padd(mem_inuse, padding) + mem_total = helpers.padd(mem_total, padding) + mem_free = helpers.padd(mem_free, padding) + swap_usepercent = helpers.padd(swap_usepercent, padding) + swap_inuse = helpers.padd(swap_inuse, padding) + swap_total = helpers.padd(swap_total, padding) + swap_free = helpers.padd(swap_free, padding) + end + end + + return {mem_usepercent, mem_inuse, mem_total, mem_free, + swap_usepercent, swap_inuse, swap_total, swap_free} +end +-- }}} |