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lib/finalizer.rb: removed
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14030 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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lib/finalize.rb
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lib/finalize.rb
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#--
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# finalizer.rb -
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# $Release Version: 0.3$
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# $Revision: 1.4 $
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# $Date: 1998/02/27 05:34:33 $
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# by Keiju ISHITSUKA
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#++
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#
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# Usage:
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#
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# add dependency R_method(obj, dependant)
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# add(obj, dependant, method = :finalize, *opt)
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# add_dependency(obj, dependant, method = :finalize, *opt)
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#
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# delete dependency R_method(obj, dependant)
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# delete(obj_or_id, dependant, method = :finalize)
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# delete_dependency(obj_or_id, dependant, method = :finalize)
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#
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# delete dependency R_*(obj, dependant)
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# delete_all_dependency(obj_or_id, dependant)
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#
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# delete dependency R_method(*, dependant)
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# delete_by_dependant(dependant, method = :finalize)
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#
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# delete dependency R_*(*, dependant)
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# delete_all_by_dependant(dependant)
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#
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# delete all dependency R_*(*, *)
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# delete_all
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#
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# finalize the dependant connected by dependency R_method(obj, dependtant).
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# finalize(obj_or_id, dependant, method = :finalize)
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# finalize_dependency(obj_or_id, dependant, method = :finalize)
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#
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# finalize all dependants connected by dependency R_*(obj, dependtant).
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# finalize_all_dependency(obj_or_id, dependant)
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#
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# finalize the dependant connected by dependency R_method(*, dependtant).
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# finalize_by_dependant(dependant, method = :finalize)
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#
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# finalize all dependants connected by dependency R_*(*, dependant).
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# finalize_all_by_dependant(dependant)
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#
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# finalize all dependency registered to the Finalizer.
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# finalize_all
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#
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# stop invoking Finalizer on GC.
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# safe{..}
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#
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module Finalizer
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RCS_ID='-$Id: finalize.rb,v 1.4 1998/02/27 05:34:33 keiju Exp keiju $-'
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class <<self
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# @dependency: {id => [[dependant, method, *opt], ...], ...}
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# add dependency R_method(obj, dependant)
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def add_dependency(obj, dependant, method = :finalize, *opt)
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ObjectSpace.call_finalizer(obj)
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method = method.intern unless method.kind_of?(Integer)
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assoc = [dependant, method].concat(opt)
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if dep = @dependency[obj.object_id]
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dep.push assoc
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else
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@dependency[obj.object_id] = [assoc]
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end
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end
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alias add add_dependency
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# delete dependency R_method(obj, dependant)
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def delete_dependency(id, dependant, method = :finalize)
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id = id.object_id unless id.kind_of?(Integer)
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method = method.intern unless method.kind_of?(Integer)
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for assoc in @dependency[id]
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assoc.delete_if do
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|d, m, *o|
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d == dependant && m == method
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end
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@dependency.delete(id) if assoc.empty?
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end
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end
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alias delete delete_dependency
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# delete dependency R_*(obj, dependant)
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def delete_all_dependency(id, dependant)
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id = id.object_id unless id.kind_of?(Integer)
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method = method.intern unless method.kind_of?(Integer)
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for assoc in @dependency[id]
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assoc.delete_if do
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|d, m, *o|
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d == dependant
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end
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@dependency.delete(id) if assoc.empty?
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end
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end
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# delete dependency R_method(*, dependant)
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def delete_by_dependant(dependant, method = :finalize)
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method = method.intern unless method.kind_of?(Integer)
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for id in @dependency.keys
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delete(id, dependant, method)
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end
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end
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# delete dependency R_*(*, dependant)
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def delete_all_by_dependant(dependant)
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for id in @dependency.keys
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delete_all_dependency(id, dependant)
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end
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end
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# finalize the depandant connected by dependency R_method(obj, dependtant)
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def finalize_dependency(id, dependant, method = :finalize)
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id = id.object_id unless id.kind_of?(Integer)
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method = method.intern unless method.kind_of?(Integer)
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for assocs in @dependency[id]
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assocs.delete_if do
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|d, m, *o|
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d.send(m, id, *o) if ret = d == dependant && m == method
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ret
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end
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@dependency.delete(id) if assoc.empty?
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end
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end
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alias finalize finalize_dependency
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# finalize all dependants connected by dependency R_*(obj, dependtant)
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def finalize_all_dependency(id, dependant)
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id = id.object_id unless id.kind_of?(Integer)
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method = method.intern unless method.kind_of?(Integer)
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for assoc in @dependency[id]
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assoc.delete_if do
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|d, m, *o|
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d.send(m, id, *o) if ret = d == dependant
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end
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@dependency.delete(id) if assoc.empty?
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end
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end
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# finalize the dependant connected by dependency R_method(*, dependtant)
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def finalize_by_dependant(dependant, method = :finalize)
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method = method.intern unless method.kind_of?(Integer)
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for id in @dependency.keys
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finalize(id, dependant, method)
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end
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end
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# finalize all dependants connected by dependency R_*(*, dependtant)
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def finalize_all_by_dependant(dependant)
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for id in @dependency.keys
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finalize_all_dependency(id, dependant)
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end
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end
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# finalize all dependants registered to the Finalizer.
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def finalize_all
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for id, assocs in @dependency
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for dependant, method, *opt in assocs
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dependant.send(method, id, *opt)
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end
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assocs.clear
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end
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end
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# method to call finalize_* safely.
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def safe
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old_status = Thread.critical
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Thread.critical = true
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ObjectSpace.remove_finalizer(@proc)
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begin
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yield
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ensure
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ObjectSpace.add_finalizer(@proc)
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Thread.critical = old_status
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end
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end
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private
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# registering function to ObjectSpace#add_finalizer
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def final_of(id)
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if assocs = @dependency.delete(id)
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for dependant, method, *opt in assocs
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dependant.send(method, id, *opt)
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end
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end
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end
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end
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@dependency = Hash.new
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@proc = proc{|id| final_of(id)}
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ObjectSpace.add_finalizer(@proc)
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end
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