INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION flag.
Fix byte order and word order handling in code specialized for
wordsize % SIZEOF_BDIGITS == 0.
* internal.h (INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION): Defined.
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(HOST_BIGENDIAN_P): New macro.
(ALIGNOF): New macro.
(CLEAR_LOWBITS): New macro.
(FILL_LOWBITS): New macro.
(swap_bdigit): New macro.
(bary_2comp): Returns an int.
* internal.h (swap16): Moved from pack.c
(swap32): Ditto.
(swap64): Ditto.
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(integer_unpack_num_bdigits): Extracted from
rb_integer_unpack_internal.
(bary_unpack_internal): Renamed from bary_unpack and support
INTEGER_PACK_2COMP.
(bary_unpack): New function to validate arguments and invoke
bary_unpack_internal.
(rb_integer_unpack_internal): Removed.
(rb_integer_unpack): Invoke bary_unpack_internal.
(rb_integer_unpack_2comp): Removed.
* internal.h (rb_integer_unpack_2comp): Removed.
* pack.c: Follow the above change.
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(rb_integer_unpack_internal): Extracted from rb_integer_unpack and
nlp_bits_ret argument added.
(integer_unpack_num_bdigits_small): nlp_bits_ret argument added to
return number of leading padding bits.
(integer_unpack_num_bdigits_generic): Ditto.
* internal.h (rb_integer_unpack_2comp): Declared.
* pack.c (pack_unpack): Use rb_integer_unpack_2comp and
rb_integer_unpack.
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* bignum.c (rb_integer_unpack): Support INTEGER_PACK_FORCE_BIGNUM.
* random.c (int_pair_to_real_inclusive): Use
INTEGER_PACK_FORCE_BIGNUM to use rb_big_mul instead of rb_funcall.
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Read the following test to know HOWTO.
This feature is a sample of RUBY_INTERNAL_EVENT.
* test/objspace/test_objspace.rb: add a test.
* ext/objspace/object_tracing.c: ditto.
* gc.c (rb_gc_count): add. THis function returns GC count.
* internal.h: add decl. of rb_gc_count(). Same as `GC.count'.
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* RUBY_INTERNAL_EVENT_NEWOBJ: object created.
* RUBY_INTERNAL_EVENT_FREE: object freeed.
* RUBY_INTERNAL_EVENT_GC_START: GC started.
And rename `RUBY_EVENT_SWITCH' to `RUBY_INTERNAL_EVENT_SWITCH'.
Internal events can not invoke any Ruby program because the tracing
timing may be critical (under huge restriction).
These events can be hooked only by C-extensions.
We recommend to use rb_potponed_job_register() API to call Ruby
program safely.
This change is mostly written by Aman Gupta (tmm1).
https://bugs.ruby-lang.org/issues/8107#note-12
[Feature #8107]
* include/ruby/debug.h, vm_trace.c: added two new APIs.
* rb_tracearg_event_flag() returns rb_event_flag_t of this event.
* rb_tracearg_object() returns created/freeed object.
* ext/-test-/tracepoint/extconf.rb,
ext/-test-/tracepoint/tracepoint.c,
test/-ext-/tracepoint/test_tracepoint.rb: add a test.
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See this ticet about RGENGC.
* gc.c: Add several flags:
* RGENGC_DEBUG: if >0, then prints debug information.
* RGENGC_CHECK_MODE: if >0, add assertions.
* RGENGC_PROFILE: if >0, add profiling features.
check GC.stat and GC::Profiler.
* include/ruby/ruby.h: disable RGENGC by default (USE_RGENGC == 0).
* array.c: add write barriers for T_ARRAY and generate sunny objects.
* include/ruby/ruby.h (RARRAY_PTR_USE): added. Use this macro if
you want to access raw pointers. If you modify the contents which
pointer pointed, then you need to care write barrier.
* bignum.c, marshal.c, random.c: generate T_BIGNUM sunny objects.
* complex.c, include/ruby/ruby.h: add write barriers for T_COMPLEX
and generate sunny objects.
* rational.c (nurat_s_new_internal), include/ruby/ruby.h: add write
barriers for T_RATIONAL and generate sunny objects.
* internal.h: add write barriers for RBasic::klass.
* numeric.c (rb_float_new_in_heap): generate sunny T_FLOAT objects.
* object.c (rb_class_allocate_instance), range.c:
generate sunny T_OBJECT objects.
* string.c: add write barriers for T_STRING and generate sunny objects.
* variable.c: add write barriers for ivars.
* vm_insnhelper.c (vm_setivar): ditto.
* include/ruby/ruby.h, debug.c: use two flags
FL_WB_PROTECTED and FL_OLDGEN.
* node.h (NODE_FL_CREF_PUSHED_BY_EVAL, NODE_FL_CREF_OMOD_SHARED):
move flag bits.
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RBASIC_CLASS(obj) macro which returns a class of `obj'.
This change is a part of RGENGC branch [ruby-trunk - Feature #8339].
* object.c: add new function rb_obj_reveal().
This function reveal interal (hidden) object by rb_obj_hide().
Note that do not change class before and after hiding.
Only permitted example is:
klass = RBASIC_CLASS(obj);
rb_obj_hide(obj);
....
rb_obj_reveal(obj, klass);
TODO: API design. rb_obj_reveal() should be replaced with others.
TODO: modify constified variables using cast may be harmful for
compiler's analysis and optimizaton.
Any idea to prohibt inserting RBasic::klass directly?
If rename RBasic::klass and force to use RBASIC_CLASS(obj),
then all codes such as `RBASIC(obj)->klass' will be
compilation error. Is it acceptable? (We have similar
experience at Ruby 1.9,
for example "RARRAY(ary)->ptr" to "RARRAY_PTR(ary)".
* internal.h: add some macros.
* RBASIC_CLEAR_CLASS(obj) clear RBasic::klass to make it internal
object.
* RBASIC_SET_CLASS(obj, cls) set RBasic::klass.
* RBASIC_SET_CLASS_RAW(obj, cls) same as RBASIC_SET_CLASS
without write barrier (planned).
* RCLASS_SET_SUPER(a, b) set super class of a.
* array.c, class.c, compile.c, encoding.c, enum.c, error.c, eval.c,
file.c, gc.c, hash.c, io.c, iseq.c, marshal.c, object.c,
parse.y, proc.c, process.c, random.c, ruby.c, sprintf.c,
string.c, thread.c, transcode.c, vm.c, vm_eval.c, win32/file.c:
Use above macros and functions to access RBasic::klass.
* ext/coverage/coverage.c, ext/readline/readline.c,
ext/socket/ancdata.c, ext/socket/init.c,
* ext/zlib/zlib.c: ditto.
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* class.c (rb_singleton_class_get): get the singleton class if exists,
or nil.
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(SIGNED_INTEGER_MAX): Ditto.
(SIGNED_INTEGER_MIN): Ditto.
(UNSIGNED_INTEGER_MAX): Ditto.
(TIMET_MAX): Use SIGNED_INTEGER_MAX and UNSIGNED_INTEGER_MAX.
(TIMET_MIN): Use SIGNED_INTEGER_MIN.
* thread.c (TIMEVAL_SEC_MAX): Use SIGNED_INTEGER_MAX.
(TIMEVAL_SEC_MIN): Use SIGNED_INTEGER_MIN.
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* internal.h (GCC_VERSION_SINCE): Macro moved from pack.c.
* pack.c: Include internal.h for GCC_VERSION_SINCE.
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* configure.in (RUBY_REPLACE_TYPE): define SIGNEDNESS_OF_type same as
check_signedness of mkmf.rb.
* internal.h (TIMET_MAX, TIMET_MIN, TIMET_MAX_PLUS_ONE): use
SIGNEDNESS_OF_TIME_T.
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