Gecko [ goons4good.org ]

Name	Size	Permission	Date
cgi	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
digest	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
drb	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
fiddle	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
io	[ DIR ]	drwxr-xr-x	2023-07-26 10:28
irb	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
json	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
matrix	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
net	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
openssl	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
optparse	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
psych	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
racc	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rbconfig	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rdoc	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rexml	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rinda	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
ripper	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rss	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rubygems	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
shell	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
syslog	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
unicode_normalize	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
uri	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
webrick	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
x86_64-linux	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
xmlrpc	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
yaml	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
English.rb	6.45 KB	-rw-r--r--	2015-12-16 00:07
abbrev.rb	3.49 KB	-rw-r--r--	2015-12-16 00:07
base64.rb	3.31 KB	-rw-r--r--	2015-12-16 00:07
benchmark.rb	17.9 KB	-rw-r--r--	2015-12-22 22:43
cgi.rb	9.8 KB	-rw-r--r--	2015-12-16 00:07
cmath.rb	9.48 KB	-rw-r--r--	2015-12-16 00:07
csv.rb	82.15 KB	-rw-r--r--	2015-12-19 00:23
date.rb	1011 B	-rw-r--r--	2023-07-26 10:28
debug.rb	29.97 KB	-rw-r--r--	2015-12-16 00:07
delegate.rb	10.29 KB	-rw-r--r--	2015-12-16 00:07
digest.rb	2.82 KB	-rw-r--r--	2023-07-26 10:28
drb.rb	50 B	-rw-r--r--	2015-12-16 00:07
e2mmap.rb	3.8 KB	-rw-r--r--	2015-12-16 00:07
erb.rb	26.45 KB	-rw-r--r--	2017-06-30 07:24
expect.rb	2.17 KB	-rw-r--r--	2023-07-26 10:28
fiddle.rb	1.68 KB	-rw-r--r--	2023-07-26 10:28
fileutils.rb	47.47 KB	-rw-r--r--	2017-03-27 12:57
find.rb	2.51 KB	-rw-r--r--	2015-12-16 00:07
forwardable.rb	7.97 KB	-rw-r--r--	2018-03-18 11:04
getoptlong.rb	15.41 KB	-rw-r--r--	2015-12-22 22:43
ipaddr.rb	17.08 KB	-rw-r--r--	2015-12-16 00:07
irb.rb	20.06 KB	-rw-r--r--	2016-03-29 02:10
json.rb	1.77 KB	-rw-r--r--	2023-07-26 10:28
kconv.rb	5.77 KB	-rw-r--r--	2023-07-26 10:28
logger.rb	21.93 KB	-rw-r--r--	2016-10-17 13:38
mathn.rb	3.87 KB	-rw-r--r--	2015-12-16 00:07
matrix.rb	53.37 KB	-rw-r--r--	2015-12-16 00:07
mkmf.rb	83.79 KB	-rw-r--r--	2023-07-26 10:26
monitor.rb	7.01 KB	-rw-r--r--	2015-12-16 00:07
mutex_m.rb	2.03 KB	-rw-r--r--	2015-12-16 00:07
observer.rb	5.83 KB	-rw-r--r--	2015-12-16 00:07
open-uri.rb	24.61 KB	-rw-r--r--	2015-11-10 22:48
open3.rb	20.67 KB	-rw-r--r--	2015-11-14 02:43
openssl.rb	445 B	-rw-r--r--	2023-07-26 10:28
optionparser.rb	59 B	-rw-r--r--	2015-12-16 00:07
optparse.rb	56.91 KB	-rw-r--r--	2017-08-09 03:56
ostruct.rb	9.95 KB	-rw-r--r--	2018-01-31 06:05
pathname.rb	16.08 KB	-rw-r--r--	2023-07-26 10:28
pp.rb	14.2 KB	-rw-r--r--	2015-11-10 06:48
prettyprint.rb	15.89 KB	-rw-r--r--	2015-11-10 06:48
prime.rb	12.35 KB	-rw-r--r--	2015-12-16 00:07
profile.rb	236 B	-rw-r--r--	2015-12-16 00:07
profiler.rb	4.54 KB	-rw-r--r--	2015-12-16 00:07
pstore.rb	14.58 KB	-rw-r--r--	2015-12-22 22:43
psych.rb	15.29 KB	-rw-r--r--	2023-07-26 10:28
psych_jars.rb	175 B	-rw-r--r--	2023-07-26 10:28
rdoc.rb	5.07 KB	-rw-r--r--	2015-12-22 07:08
resolv-replace.rb	1.76 KB	-rw-r--r--	2015-11-14 03:25
resolv.rb	73.52 KB	-rw-r--r--	2018-03-28 02:03
ripper.rb	2.56 KB	-rw-r--r--	2023-07-26 10:28
rss.rb	2.87 KB	-rw-r--r--	2015-12-16 00:07
rubygems.rb	32.24 KB	-rw-r--r--	2018-02-16 11:21
scanf.rb	23.56 KB	-rw-r--r--	2015-12-16 00:07
securerandom.rb	7.49 KB	-rw-r--r--	2016-04-22 11:30
set.rb	19.67 KB	-rw-r--r--	2015-11-16 02:41
shell.rb	11.33 KB	-rw-r--r--	2015-12-16 00:07
shellwords.rb	6.28 KB	-rw-r--r--	2015-12-16 04:25
singleton.rb	4.05 KB	-rw-r--r--	2015-12-16 00:07
socket.rb	43.49 KB	-rw-r--r--	2023-07-26 10:28
sync.rb	7.29 KB	-rw-r--r--	2015-12-16 00:07
tempfile.rb	10.87 KB	-rw-r--r--	2017-03-27 10:47
thwait.rb	3.34 KB	-rw-r--r--	2015-12-16 00:07
time.rb	22.28 KB	-rw-r--r--	2015-11-14 07:45
timeout.rb	3.68 KB	-rw-r--r--	2015-12-18 10:46
tmpdir.rb	4.17 KB	-rw-r--r--	2018-03-28 06:29
tracer.rb	6.43 KB	-rw-r--r--	2015-12-16 00:07
tsort.rb	14.3 KB	-rw-r--r--	2015-11-14 03:46
ubygems.rb	299 B	-rw-r--r--	2015-12-16 00:07
un.rb	8.87 KB	-rw-r--r--	2015-12-16 00:07
unicode_normalize.rb	3.19 KB	-rw-r--r--	2015-12-16 00:07
uri.rb	3.1 KB	-rw-r--r--	2015-12-16 00:07
weakref.rb	2.95 KB	-rw-r--r--	2015-12-16 00:07
webrick.rb	6.72 KB	-rw-r--r--	2015-12-22 22:43
xmlrpc.rb	8.93 KB	-rw-r--r--	2015-12-22 22:43
yaml.rb	1.73 KB	-rw-r--r--	2015-12-16 00:07

Rename

# frozen_string_literal: false
require 'thread'

# The Singleton module implements the Singleton pattern.
#
# == Usage
#
# To use Singleton, include the module in your class.
#
#    class Klass
#       include Singleton
#       # ...
#    end
#
# This ensures that only one instance of Klass can be created.
#
#      a,b  = Klass.instance, Klass.instance
#
#      a == b
#      # => true
#
#      Klass.new
#      # => NoMethodError - new is private ...
#
# The instance is created at upon the first call of Klass.instance().
#
#      class OtherKlass
#        include Singleton
#        # ...
#      end
#
#      ObjectSpace.each_object(OtherKlass){}
#      # => 0
#
#      OtherKlass.instance
#      ObjectSpace.each_object(OtherKlass){}
#      # => 1
#
#
# This behavior is preserved under inheritance and cloning.
#
# == Implementation
#
# This above is achieved by:
#
# *  Making Klass.new and Klass.allocate private.
#
# *  Overriding Klass.inherited(sub_klass) and Klass.clone() to ensure that the
#    Singleton properties are kept when inherited and cloned.
#
# *  Providing the Klass.instance() method that returns the same object each
#    time it is called.
#
# *  Overriding Klass._load(str) to call Klass.instance().
#
# *  Overriding Klass#clone and Klass#dup to raise TypeErrors to prevent
#    cloning or duping.
#
# == Singleton and Marshal
#
# By default Singleton's #_dump(depth) returns the empty string. Marshalling by
# default will strip state information, e.g. instance variables and taint
# state, from the instance. Classes using Singleton can provide custom
# _load(str) and _dump(depth) methods to retain some of the previous state of
# the instance.
#
#    require 'singleton'
#
#    class Example
#      include Singleton
#      attr_accessor :keep, :strip
#      def _dump(depth)
#        # this strips the @strip information from the instance
#        Marshal.dump(@keep, depth)
#      end
#
#      def self._load(str)
#        instance.keep = Marshal.load(str)
#        instance
#      end
#    end
#
#    a = Example.instance
#    a.keep = "keep this"
#    a.strip = "get rid of this"
#    a.taint
#
#    stored_state = Marshal.dump(a)
#
#    a.keep = nil
#    a.strip = nil
#    b = Marshal.load(stored_state)
#    p a == b  #  => true
#    p a.keep  #  => "keep this"
#    p a.strip #  => nil
#
module Singleton
  # Raises a TypeError to prevent cloning.
  def clone
    raise TypeError, "can't clone instance of singleton #{self.class}"
  end

# Raises a TypeError to prevent duping.
  def dup
    raise TypeError, "can't dup instance of singleton #{self.class}"
  end

# By default, do not retain any state when marshalling.
  def _dump(depth = -1)
    ''
  end

module SingletonClassMethods # :nodoc:

def clone # :nodoc:
      Singleton.__init__(super)
    end

# By default calls instance(). Override to retain singleton state.
    def _load(str)
      instance
    end

private

def inherited(sub_klass)
      super
      Singleton.__init__(sub_klass)
    end
  end

class << Singleton # :nodoc:
    def __init__(klass) # :nodoc:
      klass.instance_eval {
        @singleton__instance__ = nil
        @singleton__mutex__ = Mutex.new
      }
      def klass.instance # :nodoc:
        return @singleton__instance__ if @singleton__instance__
        @singleton__mutex__.synchronize {
          return @singleton__instance__ if @singleton__instance__
          @singleton__instance__ = new()
        }
        @singleton__instance__
      end
      klass
    end

private

# extending an object with Singleton is a bad idea
    undef_method :extend_object

def append_features(mod)
      #  help out people counting on transitive mixins
      unless mod.instance_of?(Class)
        raise TypeError, "Inclusion of the OO-Singleton module in module #{mod}"
      end
      super
    end

def included(klass)
      super
      klass.private_class_method :new, :allocate
      klass.extend SingletonClassMethods
      Singleton.__init__(klass)
    end
  end

##
  # :singleton-method: _load
  #  By default calls instance(). Override to retain singleton state.
end