Module: ForkAndReturn::Util

Defined in:
lib/forkandreturn/util.rb

Overview

:nodoc: Stuff copied from my personal library.

Class Method Summary collapse

Class Method Details

.cores ⇒ Object 



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# File 'lib/forkandreturn/util.rb', line 7

def self.cores
  @cores	||= (l = cpu_info.length) < 1 ? 1 : l
end

.cpu_info ⇒ Object

TODO: Might not be correct, but it works for now.



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# File 'lib/forkandreturn/util.rb', line 11

def self.cpu_info	# TODO: Might not be correct, but it works for now.
  @cpu_info ||=
  begin
    cpus	= []

    if File.file?("/proc/cpuinfo")
      File.open("/proc/cpuinfo") do |f|
        while line = f.gets
          key, value	= line.chomp.split(/\s*:\s*/, 2)

          if key and value
            cpus << {}	if key == "processor"

            cpus[-1][key]	= value
          end
        end
      end
    end

    cpus
  end
end

.forkable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/forkandreturn/util.rb', line 34

def self.forkable?
  @forkable ||=
  begin
    Process.wait(
      Process.fork do
        Process.exit!
      end
    )

    true
  rescue NotImplementedError
    false
  end
end

.multi_core? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/forkandreturn/util.rb', line 3

def self.multi_core?
  @multi_core	||= cores > 1
end