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* gc.c (rb_objspace_call_finalizer): finalize_deferred may free up

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a object which is reachable from a part after this function,
  e.g. ruby_vm_destruct(). [ruby-dev:46647] [Bug #7452]

* test/ruby/test_gc.rb (test_finalizing_main_thread): add a test
  for above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38010 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nari 2012-11-29 22:56:02 +00:00
parent c86379402c
commit 59770bf960
3 changed files with 19 additions and 10 deletions
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11
ChangeLog
View file

@ -1,3 +1,12 @@
Fri Nov 30 07:46:42 2012 Narihiro Nakamura <authornari@gmail.com>
* gc.c (rb_objspace_call_finalizer): finalize_deferred may free up
a object which is reachable from a part after this function,
e.g. ruby_vm_destruct(). [ruby-dev:46647] [Bug #7452]
* test/ruby/test_gc.rb (test_finalizing_main_thread): add a test
for above.
Fri Nov 30 07:43:44 2012 Koichi Sasada <ko1@atdot.net>
* thread.c (rb_thread_interrupted): avoid warning of
@ -462,7 +471,7 @@ Wed Nov 28 16:41:04 2012 Eric Hodel <drbrain@segment7.net>
* lib/rdoc/servlet.rb: Add support for serving documentation from a
subdirectory.
* lib/rdoc/generator/darkfish.rb: ditto
* test/rdoc/test_rdoc_servlet.rb: Test for above
* test/rdoc/test_rdoc_servlet.rb: Tets for above
* test/rdoc/test_rdoc_servlet.rb: ditto
Wed Nov 28 15:37:17 2012 NARUSE, Yui <naruse@ruby-lang.org>

12
gc.c
View file

@ -1504,15 +1504,9 @@ rb_objspace_call_finalizer(rb_objspace_t *objspace)
if (ATOMIC_EXCHANGE(finalizing, 1)) return;
/* run finalizers */
do {
finalize_deferred(objspace);
/* mark reachable objects from finalizers */
/* They might be not referred from any place here */
mark_tbl(objspace, finalizer_table);
gc_mark_stacked_objects(objspace);
st_foreach(finalizer_table, chain_finalized_object,
(st_data_t)&deferred_final_list);
} while (deferred_final_list);
finalize_deferred(objspace);
assert(deferred_final_list == 0);
/* force to run finalizer */
while (finalizer_table->num_entries) {
struct force_finalize_list *list = 0;

6
test/ruby/test_gc.rb
View file

@ -134,4 +134,10 @@ class TestGc < Test::Unit::TestCase
ensure
GC::Profiler.disable
end
def test_finalizing_main_thread
assert_in_out_err(%w[--disable-gems], <<-EOS, ["\"finalize\""], [], "[ruby-dev:46647]")
ObjectSpace.define_finalizer(Thread.main) { p 'finalize' }
EOS
end
end