ruby.git/include/ruby/ruby.h, branch v2_1_0_preview2

* gc.c: add 3gen GC patch, but disabled as default.

2013-11-04T18:59:33+00:00

RGenGC is designed as 2 generational GC, young and old generation.
Young objects will be promoted to old objects after one GC.
Old objects are not collect until major (full) GC.
The issue of this approach is some objects can promoted as old
objects accidentally and not freed until major GC.
Major GC is not frequently so short-lived but accidentally becoming
old objects are not freed.
For example, the program "loop{Array.new(1_000_000)}" consumes huge
memories because short lived objects (an array which has 1M
elements) are promoted while GC and they are not freed before major
GC.
To solve this problem, generational GC with more generations
technique is known. This patch implements three generations gen GC.
At first, newly created objects are "Infant" objects.
After surviving one GC, "Infant" objects are promoted to "Young"
objects.
"Young" objects are promoted to "Old" objects after surviving
next GC.
"Infant" and "Young" objects are collected if it is not marked
while minor GC. So that this technique solves this problem.
Representation of generations:
* Infant: !FL_PROMOTED and !oldgen_bitmap [00]
* Young : FL_PROMOTED and !oldgen_bitmap [10]
* Old : FL_PROMOTED and oldgen_bitmap [11]
The macro "RGENGC_THREEGEN" enables/disables this feature, and
turned off as default because there are several problems.
(1) Failed sometimes (Heisenbugs).
(2) Performance down.
Especially on write barriers. We need to detect Young or Old
object by oldgen_bitmap. It is slower than checking flags.
To evaluate this feature on more applications, I commit this patch.
Reports are very welcome.
This patch includes some refactoring (renaming names, etc).
* include/ruby/ruby.h: catch up 3gen GC.
* .gdbinit: fix to show a prompt "[PROMOTED]" for promoted objects.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43530 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* include/ruby/ruby.h: rename FL_OLDGEN to FL_PROMOTED.

2013-11-04T15:04:10+00:00

  This flag represents that "this object is promoted at least once."
* gc.c, debug.c, object.c: catch up this change.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43527 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* include/ruby/ruby.h: fix typo (FL_WB_PROTECT -> FL_WB_PROTECTED).

2013-10-29T10:49:45+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43465 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* include/ruby/ruby.h: introduce new flags for T_TYPEDDATA.

2013-10-29T09:42:45+00:00

  * RUBY_TYPED_FREE_IMMEDIATELY: free the data given by DATA_PTR()
    with dfree function immediately.  Otherwise (default), the data
    freed at finalizaton point.
  * RUBY_TYPED_WB_PROTECTED: make this object with FL_WB_PROTECT
    (not shady).
* gc.c (obj_free): support RUBY_TYPED_FREE_IMMEDIATELY.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43463 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ruby.h: suppress warnings

2013-10-20T04:58:49+00:00

* include/ruby/ruby.h (rb_obj_wb_unprotect, rb_obj_written),
  (rb_obj_write): suppress unused-parameter warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43370 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* vsnprintf.c: Fix spelling from compliment to complement.

2013-10-13T14:53:40+00:00

  Patch by @agrimm. Closes GH-422.

* include/ruby/ruby.h: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43274 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ruby.h: export ruby_safe_level_4_warning

2013-10-01T07:03:50+00:00

* include/ruby/ruby.h (ruby_safe_level_4_warning): needed by extension
  libraries which check safe level 4.  [ruby-dev:47517] [Bug #8652]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43103 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* include/ruby/ruby.h: rename RARRAY_RAWPTR() to RARRAY_CONST_PTR().

2013-09-25T08:24:34+00:00

  RARRAY_RAWPTR(ary) returns (const VALUE *) type pointer and
  usecase of this macro is not acquire raw pointer, but acquire
  read-only pointer. So we rename to better name.
  RSTRUCT_RAWPTR() is also renamed to RSTRUCT_CONST_PTR()
  (I expect that nobody use it).
* array.c, compile.c, cont.c, enumerator.c, gc.c, proc.c, random.c,
  string.c, struct.c, thread.c, vm_eval.c, vm_insnhelper.c:
  catch up this change.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43043 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

internal.h: move inline functions

2013-09-25T07:58:49+00:00

* internal.h (rb_float_value, rb_float_new): move inline functions
  from ruby/ruby.h.
* numeric.c (rb_float_value, rb_float_new): define external functions
  for extension libraries.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43042 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* include/ruby/ruby.h: make Symbol objects frozen.

2013-09-19T05:30:02+00:00

  [Feature #8906]
  I want to freeze this good day, too.
* test/ruby/test_eval.rb: catch up this change.
* test/ruby/test_symbol.rb: add a test to check frozen symbols.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42974 b2dd03c8-39d4-4d8f-98ff-823fe69b080e