vicious/cpuinf.lua

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-- Licensed under the GNU General Public License v2
--  * (c) 2009, Adrian C. <anrxc.sysphere.org>
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-- {{{ Grab environment
local tonumber = tonumber
local io = { open = io.open }
local setmetatable = setmetatable
-- }}}


-- Cpuinf: provides speed and cache information for all available CPUs/cores
module("vicious.cpuinf")


-- {{{ CPU Information widget type
local function worker(format)
    cpu_id = nil

    -- Get cpuinfo
    local f = io.open("/proc/cpuinfo")
    local cpu_info = {}

    for line in f:lines() do
        if line:match("^processor.*") then
            cpu_id = line:match("([%d]+)")
        elseif line:match("^cpu MHz.*") then
            local cpu_speed = line:match("([%d]+)%.")
            cpu_info["{"..cpu_id.." mhz}"] = cpu_speed
            cpu_info["{"..cpu_id.." ghz}"] = tonumber(cpu_speed) / 1000
        elseif line:match("^cache size.*") then
            local cpu_cache = line:match("([%d]+)[%s]KB")
            cpu_info["{"..cpu_id.." kb}"] = cpu_cache
            cpu_info["{"..cpu_id.." mb}"] = tonumber(cpu_cache) / 1024
        end
    end
    f:close()

    return cpu_info
end
-- }}}

setmetatable(_M, { __call = function(_, ...) return worker(...) end })