* gc.c (rb_mark_set): new function to mark keys.
	* marshal.c (struct dump_arg, struct load_arg): added wrappers to mark
	  data entries.  backport from trunk r13527,r13528,r13961,r16533.
	  [ruby-dev:36082]
	* marshal.c (marshal_load): arg.data is no longer a VALUE but a
	  st_table, and freed in load_ensure.  pointed out by pegacorn.
	  [ruby-dev:37008]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@21731 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* gc.c (STACK_LEVEL_MAX, ruby_stack_length): returns size_t.
	  [ruby-core:18207]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@21524 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* gc.c (gc_sweep, obj_free, run_final): defer finalizers of IO and
	  Data.  [ruby-dev:35578]
	* gc.c (rb_gc_call_finalizer_at_exit): self-referencing finalizers
	  cannot be invoked.  [ruby-dev:35681]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@21435 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* rubysig.h (CHECK_INTS): gives the chance to perform to deferred
	  finalizers before explicit GC.start or the process termination.
	  [ruby-core:18045]
	* eval.c (rb_thread_schedule): runs deferred finalizers.
	* gc.c (gc_sweep): sets rb_thread_pending to run deferred finalizers.
	* rubysig.h (CHECK_INTS): now checks rb_thread_pending even on
	  platforms where setitimer is not available.  [ruby-core:18045]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@21334 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* gc.c (Init_GC): fix syntax error.
	* error.c (rb_exc_new3): keeps the given string itself.
	* eval.c (Init_Proc), gc.c (Init_GC): freeze messages of preallocated
	  special exceptions also.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@18327 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* eval.c (rb_longjmp): duplicate the thrown exception to set backtrace
	  if it was frozen.  clear all raised flags.
	* eval.c (stack_check): leave clearing flag to rb_longjmp.
	* eval.c (rb_thread_set_raised, rb_thread_reset_raised): use generic
	  flags.
	* eval.c (Init_Proc), gc.c (Init_GC): freeze preallocated special exceptions.
	* gc.c (rb_memerror): use thread raised flag instead of static flag,
	  and raise nomem_error without backtrace if failed to make backtrace.
	  [ruby-dev:34724]
	* gc.c (ruby_xmalloc): increase malloc_increase only if malloc
	  succeeds.  failed malloc size can be huge.  it may increase
	  malloc_limit too big which cause less GC and memory full.
	  (ruby_xrealloc): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@17930 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* gc.c: add rb_during_gc(). based on a patch from arton <artonx AT
	  yahoo.co.jp> at [ruby-dev:35313].   
	* intern.h: ditto.
	* ext/win32ole/win32ole.c: avoid creating Ruby object during
	  GC. thanks to arton <artonx AT yahoo.co.jp>. [ruby-dev:35313]
	* ext/win32ole/tests: add test_win32ole_event.rb, remove
	  testOLEEVENT.rb
	* ext/win32ole/tests/testWIN32OLE.rb(test_convert_bignum):
	  fix test.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@17926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@17029 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@16511 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  backported from 1.9. a patch from Tadashi Saito
  in [ruby-dev:34394] and bug#19000


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@16030 b2dd03c8-39d4-4d8f-98ff-823fe69b080e