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PATH: opt / alt / ruby23 / lib64 / ruby / gems / 2.3.0 / gems / rake-10.4.2 / lib / rake

module Rake

# Based on a script at:
  #   http://stackoverflow.com/questions/891537/ruby-detect-number-of-cpus-installed
  class CpuCounter # :nodoc: all
    def self.count
      new.count_with_default
    end

def count_with_default(default=4)
      count || default
    rescue StandardError
      default
    end

begin
      require 'etc'
    rescue LoadError
    else
      if Etc.respond_to?(:nprocessors)
        def count
          return Etc.nprocessors
        end
      end
    end
  end
end

unless Rake::CpuCounter.method_defined?(:count)
  Rake::CpuCounter.class_eval <<-'end;', __FILE__, __LINE__+1
    require 'rbconfig'

# TODO: replace with IO.popen using array-style arguments in Rake 11
    require 'open3'

def count
      if defined?(Java::Java)
        count_via_java_runtime
      else
        case RbConfig::CONFIG['host_os']
        when /darwin9/
          count_via_hwprefs_cpu_count
        when /darwin/
          count_via_hwprefs_thread_count || count_via_sysctl
        when /linux/
          count_via_cpuinfo
        when /bsd/
          count_via_sysctl
        when /mswin|mingw/
          count_via_win32
        else
          # Try everything
          count_via_win32 ||
            count_via_sysctl ||
            count_via_hwprefs_thread_count ||
            count_via_hwprefs_cpu_count ||
            count_via_cpuinfo
        end
      end
    end

def count_via_java_runtime
      Java::Java.lang.Runtime.getRuntime.availableProcessors
    rescue StandardError
      nil
    end

def count_via_win32
      require 'win32ole'
      wmi = WIN32OLE.connect("winmgmts://")
      cpu = wmi.ExecQuery("select NumberOfCores from Win32_Processor") # TODO count hyper-threaded in this
      cpu.to_enum.first.NumberOfCores
    rescue StandardError, LoadError
      nil
    end

def count_via_cpuinfo
      open('/proc/cpuinfo') { |f| f.readlines }.grep(/processor/).size
    rescue StandardError
      nil
    end

def count_via_hwprefs_thread_count
      run 'hwprefs', 'thread_count'
    end

def count_via_hwprefs_cpu_count
      run 'hwprefs', 'cpu_count'
    end

def count_via_sysctl
      run 'sysctl', '-n', 'hw.ncpu'
    end

def run(command, *args)
      cmd = resolve_command(command)
      if cmd
        Open3.popen3 cmd, *args do |inn, out, err,|
          inn.close
          err.read
          out.read.to_i
        end
      else
        nil
      end
    end

def resolve_command(command)
      look_for_command("/usr/sbin", command) ||
        look_for_command("/sbin", command) ||
        in_path_command(command)
    end

def look_for_command(dir, command)
      path = File.join(dir, command)
      File.exist?(path) ? path : nil
    end

def in_path_command(command)
      Open3.popen3 'which', command do |_, out,|
        out.eof? ? nil : command
      end
    end
  end;
end

[-] rake_module.rb [edit]
[-] ruby182_test_unit_fix.rb [edit]
[-] tasklib.rb [edit]
[-] multi_task.rb [edit]
[-] clean.rb [edit]
[-] task_arguments.rb [edit]
[+] contrib
[+] ext
[-] rule_recursion_overflow_error.rb [edit]
[-] pseudo_status.rb [edit]
[-] promise.rb [edit]
[-] version.rb [edit]
[-] task_argument_error.rb [edit]
[-] pathmap.rb [edit]
[-] late_time.rb [edit]
[-] thread_pool.rb [edit]
[+] loaders
[-] dsl_definition.rb [edit]
[-] early_time.rb [edit]
[-] cloneable.rb [edit]
[-] thread_history_display.rb [edit]
[-] invocation_exception_mixin.rb [edit]
[-] default_loader.rb [edit]
[-] file_list.rb [edit]
[-] rake_test_loader.rb [edit]
[-] alt_system.rb [edit]
[-] phony.rb [edit]
[-] runtest.rb [edit]
[-] scope.rb [edit]
[-] testtask.rb [edit]
[-] name_space.rb [edit]
[+] ..
[-] backtrace.rb [edit]
[-] task_manager.rb [edit]
[-] file_utils.rb [edit]
[-] invocation_chain.rb [edit]
[-] win32.rb [edit]
[-] rdoctask.rb [edit]
[-] trace_output.rb [edit]
[-] file_creation_task.rb [edit]
[-] task.rb [edit]
[-] application.rb [edit]
[-] linked_list.rb [edit]
[-] file_utils_ext.rb [edit]
[-] file_task.rb [edit]
[-] cpu_counter.rb [edit]
[-] gempackagetask.rb [edit]
[-] private_reader.rb [edit]
[-] packagetask.rb [edit]