ohai 8.4.0-1 / usr / lib / ruby / vendor_ruby / ohai / plugins / openbsd / cpu.rb

#
# Author:: Mathieu Sauve-Frankel <msf@kisoku.net>
# Copyright:: Copyright (c) 2009 Mathieu Sauve-Frankel
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

Ohai.plugin(:CPU) do
  provides 'cpu'

  collect_data(:openbsd) do
    cpuinfo = Mash.new

    # OpenBSD provides most cpu information via sysctl, the only thing we need to 
    # to scrape from dmesg.boot is the cpu feature list. 
    # cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,SBF,EST,TM2

    File.open("/var/run/dmesg.boot").each do |line|
      case line
      when /cpu\d+:\s+([A-Z]+$|[A-Z]+,.*$)/
        cpuinfo["flags"] = $1.downcase.split(',')
      end
    end

    [["hw.model", :model_name], ["hw.ncpu", :total], ["hw.cpuspeed", :mhz]].each do |param, node|
      so = shell_out("sysctl -n #{param}")
      cpuinfo[node] = so.stdout.split($/)[0]
    end

    cpu cpuinfo
  end
end