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delegate.rb	8.81 KB	-rw-r--r--
digest.rb	1.12 KB	-rw-r--r--
drb.rb	19 B	-rw-r--r--
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eregex.rb	487 B	-rw-r--r--
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fileutils.rb	42.23 KB	-rw-r--r--
finalize.rb	5.38 KB	-rw-r--r--
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ftools.rb	6.17 KB	-rw-r--r--
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kconv.rb	8.12 KB	-rw-r--r--
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mailread.rb	1.28 KB	-rw-r--r--
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matrix.rb	27.21 KB	-rw-r--r--
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monitor.rb	7.93 KB	-rw-r--r--
mutex_m.rb	2.07 KB	-rw-r--r--
observer.rb	5.15 KB	-rw-r--r--
open-uri.rb	20.49 KB	-rw-r--r--
open3.rb	2.1 KB	-rw-r--r--
openssl.rb	575 B	-rw-r--r--
optparse.rb	47.12 KB	-rw-r--r--
ostruct.rb	3.35 KB	-rw-r--r--
parsearg.rb	1.55 KB	-rw-r--r--
parsedate.rb	1.33 KB	-rw-r--r--
pathname.rb	29.39 KB	-rw-r--r--
ping.rb	1.48 KB	-rw-r--r--
pp.rb	15.97 KB	-rw-r--r--
prettyprint.rb	18.33 KB	-rw-r--r--
profile.rb	90 B	-rw-r--r--
profiler.rb	1.59 KB	-rw-r--r--
pstore.rb	11.15 KB	-rw-r--r--
rational.rb	12.05 KB	-rw-r--r--
readbytes.rb	835 B	-rw-r--r--
resolv-replace.rb	1.55 KB	-rw-r--r--
resolv.rb	56.83 KB	-rw-r--r--
rss.rb	504 B	-rw-r--r--
rubyunit.rb	180 B	-rw-r--r--
scanf.rb	20.63 KB	-rw-r--r--
securerandom.rb	4.27 KB	-rw-r--r--
set.rb	27.08 KB	-rw-r--r--
sha1.rb	418 B	-rw-r--r--
shell.rb	4.66 KB	-rw-r--r--
shellwords.rb	3.99 KB	-rw-r--r--
singleton.rb	8.08 KB	-rw-r--r--
sync.rb	6.09 KB	-rw-r--r--
tempfile.rb	4.86 KB	-rw-r--r--
thread.rb	104 B	-rw-r--r--
thwait.rb	4.32 KB	-rw-r--r--
time.rb	31.58 KB	-rw-r--r--
timeout.rb	3 KB	-rw-r--r--
tmpdir.rb	3.69 KB	-rw-r--r--
tracer.rb	2.73 KB	-rw-r--r--
tsort.rb	7.99 KB	-rw-r--r--
un.rb	4.54 KB	-rw-r--r--
uri.rb	710 B	-rw-r--r--
weakref.rb	2.68 KB	-rw-r--r--
webrick.rb	811 B	-rw-r--r--
yaml.rb	12.36 KB	-rw-r--r--

Code Editor : finalize.rb

#--
#   finalizer.rb - 
#   	$Release Version: 0.3$
#   	$Revision: 1.4 $
#   	$Date: 1998/02/27 05:34:33 $
#   	by Keiju ISHITSUKA
#++
#
# Usage:
#
# add dependency R_method(obj, dependant)
#   add(obj, dependant, method = :finalize, *opt)
#   add_dependency(obj, dependant, method = :finalize, *opt)
#
# delete dependency R_method(obj, dependant)
#   delete(obj_or_id, dependant, method = :finalize)
#   delete_dependency(obj_or_id, dependant, method = :finalize)
#
# delete dependency R_*(obj, dependant)
#   delete_all_dependency(obj_or_id, dependant)
#
# delete dependency R_method(*, dependant)
#   delete_by_dependant(dependant, method = :finalize)
#
# delete dependency R_*(*, dependant)
#   delete_all_by_dependant(dependant)
#
# delete all dependency R_*(*, *)
#   delete_all
#
# finalize the dependant connected by dependency R_method(obj, dependtant).
#   finalize(obj_or_id, dependant, method = :finalize)
#   finalize_dependency(obj_or_id, dependant, method = :finalize)
#
# finalize all dependants connected by dependency R_*(obj, dependtant).
#   finalize_all_dependency(obj_or_id, dependant)
#
# finalize the dependant connected by dependency R_method(*, dependtant).
#   finalize_by_dependant(dependant, method = :finalize)
#
# finalize all dependants connected by dependency R_*(*, dependant).
#   finalize_all_by_dependant(dependant)
#
# finalize all dependency registered to the Finalizer.
#   finalize_all
#
# stop invoking Finalizer on GC.
#   safe{..}
#

module Finalizer
  RCS_ID='-$Id: finalize.rb,v 1.4 1998/02/27 05:34:33 keiju Exp keiju $-'

class <<self
    # @dependency: {id => [[dependant, method, *opt], ...], ...}

# add dependency R_method(obj, dependant)
    def add_dependency(obj, dependant, method = :finalize, *opt)
      ObjectSpace.call_finalizer(obj)
      method = method.intern unless method.kind_of?(Integer)
      assoc = [dependant, method].concat(opt)
      if dep = @dependency[obj.object_id]
	dep.push assoc
      else
	@dependency[obj.object_id] = [assoc]
      end
    end
    alias add add_dependency

# delete dependency R_method(obj, dependant)
    def delete_dependency(id, dependant, method = :finalize)
      id = id.object_id unless id.kind_of?(Integer)
      method = method.intern unless method.kind_of?(Integer)
      for assoc in @dependency[id]
	assoc.delete_if do
	  |d, m, *o|
	  d == dependant && m == method
	end
	@dependency.delete(id) if assoc.empty?
      end
    end
    alias delete delete_dependency

# delete dependency R_*(obj, dependant)
    def delete_all_dependency(id, dependant)
      id = id.object_id unless id.kind_of?(Integer)
      method = method.intern unless method.kind_of?(Integer)
      for assoc in @dependency[id]
	assoc.delete_if do
	  |d, m, *o|
	  d == dependant
	end
	@dependency.delete(id) if assoc.empty?
      end
    end

# delete dependency R_method(*, dependant)
    def delete_by_dependant(dependant, method = :finalize)
      method = method.intern unless method.kind_of?(Integer)
      for id in @dependency.keys
	delete(id, dependant, method)
      end
    end

# delete dependency R_*(*, dependant)
    def delete_all_by_dependant(dependant)
      for id in @dependency.keys
	delete_all_dependency(id, dependant)
      end
    end

# finalize the depandant connected by dependency R_method(obj, dependtant)
    def finalize_dependency(id, dependant, method = :finalize)
      id = id.object_id unless id.kind_of?(Integer)
      method = method.intern unless method.kind_of?(Integer)
      for assocs in @dependency[id]
	assocs.delete_if do
	  |d, m, *o|
	  d.send(m, id, *o) if ret = d == dependant && m == method
	  ret
	end
	@dependency.delete(id) if assoc.empty?
      end
    end
    alias finalize finalize_dependency

# finalize all dependants connected by dependency R_*(obj, dependtant)
    def finalize_all_dependency(id, dependant)
      id = id.object_id unless id.kind_of?(Integer)
      method = method.intern unless method.kind_of?(Integer)
      for assoc in @dependency[id]
	assoc.delete_if do
	  |d, m, *o|
	  d.send(m, id, *o) if ret = d == dependant
	end
	@dependency.delete(id) if assoc.empty?
      end
    end

# finalize the dependant connected by dependency R_method(*, dependtant)
    def finalize_by_dependant(dependant, method = :finalize)
      method = method.intern unless method.kind_of?(Integer)
      for id in @dependency.keys
	finalize(id, dependant, method)
      end
    end

# finalize all dependants connected by dependency R_*(*, dependtant)
    def finalize_all_by_dependant(dependant)
      for id in @dependency.keys
	finalize_all_dependency(id, dependant)
      end
    end

# finalize all dependants registered to the Finalizer.
    def finalize_all
      for id, assocs in @dependency
	for dependant, method, *opt in assocs
	  dependant.send(method, id, *opt)
	end
	assocs.clear
      end
    end

# method to call finalize_* safely.
    def safe
      old_status = Thread.critical
      Thread.critical = true
      ObjectSpace.remove_finalizer(@proc)
      begin
	yield
      ensure
	ObjectSpace.add_finalizer(@proc)
	Thread.critical = old_status
      end
    end

private

# registering function to ObjectSpace#add_finalizer
    def final_of(id)
      if assocs = @dependency.delete(id)
	for dependant, method, *opt in assocs
	  dependant.send(method, id, *opt)
	end
      end
    end

end
  @dependency = Hash.new
  @proc = proc{|id| final_of(id)}
  ObjectSpace.add_finalizer(@proc)
end

${this.title}

Code Editor : finalize.rb