Gecko [ thepngrecruiter.com ]

Name	Size	Permission	Date
cgi	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
date	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
digest	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
dl	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
drb	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
fiddle	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
irb	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
json	[ DIR ]	drwxr-xr-x	2025-09-09 10:20
matrix	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
net	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
openssl	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
optparse	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
psych	[ DIR ]	drwxr-xr-x	2025-09-09 10:20
racc	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
rake	[ DIR ]	drwxr-xr-x	2025-09-09 10:21
rbconfig	[ DIR ]	drwxr-xr-x	2025-09-09 10:20
rdoc	[ DIR ]	drwxr-xr-x	2025-09-09 10:20
rexml	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
rinda	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
ripper	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
rss	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
rubygems	[ DIR ]	drwxr-xr-x	2025-09-09 10:20
shell	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
syslog	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
test	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
uri	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
webrick	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
x86_64-linux	[ DIR ]	drwxr-xr-x	2025-09-09 10:20
xmlrpc	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
yaml	[ DIR ]	drwxr-xr-x	2025-09-09 10:18
English.rb	6.44 KB	-rw-r--r--	2013-02-04 13:50
abbrev.rb	3.31 KB	-rw-r--r--	2013-02-24 16:06
base64.rb	2.63 KB	-rw-r--r--	2009-10-02 20:45
benchmark.rb	17.94 KB	-rw-r--r--	2012-07-18 13:56
cgi.rb	9.39 KB	-rw-r--r--	2012-11-30 16:06
cmath.rb	7.22 KB	-rw-r--r--	2011-07-23 22:14
complex.rb	380 B	-rw-r--r--	2009-08-17 01:34
csv.rb	81.32 KB	-rw-r--r--	2014-09-17 15:56
date.rb	946 B	-rw-r--r--	2023-07-27 00:09
debug.rb	28.9 KB	-rw-r--r--	2013-02-02 16:04
delegate.rb	9.78 KB	-rw-r--r--	2014-04-30 17:45
digest.rb	2.24 KB	-rw-r--r--	2023-07-27 00:09
dl.rb	280 B	-rw-r--r--	2023-07-27 00:09
drb.rb	19 B	-rw-r--r--	2009-10-02 20:45
e2mmap.rb	3.8 KB	-rw-r--r--	2011-05-19 10:07
erb.rb	26.08 KB	-rw-r--r--	2014-09-03 14:42
expect.rb	2.14 KB	-rw-r--r--	2023-07-27 00:09
fiddle.rb	1.25 KB	-rw-r--r--	2023-07-27 00:09
fileutils.rb	46.35 KB	-rw-r--r--	2014-10-16 18:23
find.rb	2.08 KB	-rw-r--r--	2012-09-20 17:14
forwardable.rb	7.56 KB	-rw-r--r--	2013-01-04 13:52
getoptlong.rb	15.38 KB	-rw-r--r--	2013-12-25 02:46
gserver.rb	8.86 KB	-rw-r--r--	2014-07-07 13:55
ipaddr.rb	26.17 KB	-rw-r--r--	2013-02-23 15:03
irb.rb	20.03 KB	-rw-r--r--	2013-02-06 02:57
json.rb	1.74 KB	-rw-r--r--	2023-07-27 00:09
kconv.rb	5.74 KB	-rw-r--r--	2023-07-27 00:09
logger.rb	20.96 KB	-rw-r--r--	2013-07-14 01:16
mathn.rb	6.52 KB	-rw-r--r--	2011-08-27 08:22
matrix.rb	45.02 KB	-rw-r--r--	2013-02-05 16:43
mkmf.rb	78.19 KB	-rw-r--r--	2023-07-27 00:06
monitor.rb	6.93 KB	-rw-r--r--	2012-11-17 03:55
mutex_m.rb	2 KB	-rw-r--r--	2013-02-24 15:49
observer.rb	5.71 KB	-rw-r--r--	2012-08-21 23:03
open-uri.rb	23.66 KB	-rw-r--r--	2014-02-17 04:02
open3.rb	21.17 KB	-rw-r--r--	2013-01-13 15:40
openssl.rb	528 B	-rw-r--r--	2023-07-27 00:09
optparse.rb	51.27 KB	-rw-r--r--	2014-02-20 03:38
ostruct.rb	7.64 KB	-rw-r--r--	2012-10-29 08:20
pathname.rb	15.3 KB	-rw-r--r--	2023-07-27 00:09
pp.rb	13.14 KB	-rw-r--r--	2012-08-15 21:50
prettyprint.rb	9.63 KB	-rw-r--r--	2011-08-03 01:25
prime.rb	13.98 KB	-rw-r--r--	2013-01-13 16:07
profile.rb	205 B	-rw-r--r--	2009-10-02 20:45
profiler.rb	4.29 KB	-rw-r--r--	2013-02-03 11:38
pstore.rb	14.85 KB	-rw-r--r--	2012-11-11 15:23
psych.rb	9.9 KB	-rw-r--r--	2023-07-27 00:09
rake.rb	2.07 KB	-rw-r--r--	2012-11-30 06:16
rational.rb	308 B	-rw-r--r--	2009-09-24 10:42
rdoc.rb	4.88 KB	-rw-r--r--	2013-02-19 16:06
resolv-replace.rb	1.73 KB	-rw-r--r--	2013-04-04 04:27
resolv.rb	61.45 KB	-rw-r--r--	2015-06-02 01:13
ripper.rb	2.53 KB	-rw-r--r--	2023-07-27 00:09
rss.rb	2.84 KB	-rw-r--r--	2011-05-11 20:22
rubygems.rb	27.53 KB	-rw-r--r--	2023-07-27 00:06
scanf.rb	23.52 KB	-rw-r--r--	2011-11-05 18:37
securerandom.rb	8.56 KB	-rw-r--r--	2012-09-13 23:01
set.rb	17.32 KB	-rw-r--r--	2012-11-25 05:51
shell.rb	10.3 KB	-rw-r--r--	2012-12-05 13:55
shellwords.rb	5.94 KB	-rw-r--r--	2012-11-09 17:28
singleton.rb	4.02 KB	-rw-r--r--	2011-05-19 00:09
socket.rb	25.76 KB	-rw-r--r--	2023-07-27 00:09
sync.rb	7.26 KB	-rw-r--r--	2012-12-23 21:18
tempfile.rb	10.15 KB	-rw-r--r--	2013-10-10 03:11
thread.rb	6.94 KB	-rw-r--r--	2014-02-10 03:07
thwait.rb	3.38 KB	-rw-r--r--	2011-06-29 13:09
time.rb	21.09 KB	-rw-r--r--	2013-10-10 02:07
timeout.rb	3.16 KB	-rw-r--r--	2013-04-15 01:20
tmpdir.rb	4.15 KB	-rw-r--r--	2012-12-12 23:40
tracer.rb	6.54 KB	-rw-r--r--	2013-02-05 04:59
tsort.rb	6.79 KB	-rw-r--r--	2009-03-06 15:23
ubygems.rb	268 B	-rw-r--r--	2009-10-02 20:45
un.rb	8.34 KB	-rw-r--r--	2012-08-03 18:23
uri.rb	3.07 KB	-rw-r--r--	2011-05-14 06:03
weakref.rb	3.23 KB	-rw-r--r--	2012-12-02 18:57
webrick.rb	6.7 KB	-rw-r--r--	2012-11-07 17:49
xmlrpc.rb	8.49 KB	-rw-r--r--	2012-09-13 12:24
yaml.rb	2.3 KB	-rw-r--r--	2013-05-20 05:01

Rename

require "delegate"

# Weak Reference class that allows a referenced object to be
# garbage-collected.
#
# A WeakRef may be used exactly like the object it references.
#
# Usage:
#
#   foo = Object.new            # create a new object instance
#   p foo.to_s                  # original's class
#   foo = WeakRef.new(foo)      # reassign foo with WeakRef instance
#   p foo.to_s                  # should be same class
#   GC.start                    # start the garbage collector
#   p foo.to_s                  # should raise exception (recycled)
#
# == Example
#
# With help from WeakRef, we can implement our own redimentary WeakHash class.
#
# We will call it WeakHash, since it's really just a Hash except all of it's
# keys and values can be garbage collected.
#
#     require 'weakref'
#
#     class WeakHash < Hash
#       def []= key, obj
#         super WeakRef.new(key), WeakRef.new(obj)
#       end
#     end
#
# This is just a simple implementation, we've opened the Hash class and changed
# Hash#store to create a new WeakRef object with +key+ and +obj+ parameters
# before passing them as our key-value pair to the hash.
#
# With this you will have to limit your self to String key's, otherwise you
# will get an ArgumentError because WeakRef cannot create a finalizer for a
# Symbol. Symbols are immutable and cannot be garbage collected.
#
# Let's see it in action:
#
#   omg = "lol"
#   c = WeakHash.new
#   c['foo'] = "bar"
#   c['baz'] = Object.new
#   c['qux'] = omg
#   puts c.inspect
#   #=> {"foo"=>"bar", "baz"=>#<Object:0x007f4ddfc6cb48>, "qux"=>"lol"}
#
#   # Now run the garbage collector
#   GC.start
#   c['foo'] #=> nil
#   c['baz'] #=> nil
#   c['qux'] #=> nil
#   omg      #=> "lol"
#
#   puts c.inspect
#   #=> WeakRef::RefError: Invalid Reference - probably recycled
#
# You can see the local variable +omg+ stayed, although it's reference in our
# hash object was garbage collected, along with the rest of the keys and
# values. Also, when we tried to inspect our hash, we got a WeakRef::RefError,
# this is because these objects were also garbage collected.

class WeakRef < Delegator

##
  # RefError is raised when a referenced object has been recycled by the
  # garbage collector

class RefError < StandardError
  end

@@__map = ::ObjectSpace::WeakMap.new

##
  # Creates a weak reference to +orig+
  #
  # Raises an ArgumentError if the given +orig+ is immutable, such as Symbol,
  # Fixnum, or Float.

def initialize(orig)
    case orig
    when true, false, nil
      @delegate_sd_obj = orig
    else
      @@__map[self] = orig
    end
    super
  end

def __getobj__ # :nodoc:
    @@__map[self] or defined?(@delegate_sd_obj) ? @delegate_sd_obj :
      Kernel::raise(RefError, "Invalid Reference - probably recycled", Kernel::caller(2))
  end

def __setobj__(obj) # :nodoc:
  end

##
  # Returns true if the referenced object is still alive.

def weakref_alive?
    !!(@@__map[self] or defined?(@delegate_sd_obj))
  end
end

if __FILE__ == $0
#  require 'thread'
  foo = Object.new
  p foo.to_s                    # original's class
  foo = WeakRef.new(foo)
  p foo.to_s                    # should be same class
  ObjectSpace.garbage_collect
  ObjectSpace.garbage_collect
  p foo.to_s                    # should raise exception (recycled)
end