зеркало из https://github.com/github/ruby.git
Merge internal/rgengc.h and internal/gc.h
This commit is contained in:
Matt Valentine-House
Aaron Patterson
Родитель
de66b60f33
Коммит
460f399c5a
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@ -29,7 +29,7 @@
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#include "ruby/internal/core/rbasic.h"
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#include "ruby/internal/dllexport.h"
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#include "ruby/internal/fl_type.h"
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#include "ruby/internal/rgengc.h"
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#include "ruby/internal/gc.h"
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#include "ruby/internal/stdbool.h"
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#include "ruby/internal/value.h"
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#include "ruby/internal/value_type.h"
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|
|
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@ -20,7 +20,6 @@
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* extension libraries. They could be written in C++98.
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* @brief Registering values to the GC.
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*/
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#include "ruby/internal/config.h"
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#ifdef STDC_HEADERS
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|
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@ -31,11 +30,16 @@
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# include <sys/types.h> /* ssize_t */
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#endif
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#include "ruby/assert.h"
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#include "ruby/internal/attr/cold.h"
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#include "ruby/internal/attr/nonnull.h"
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#include "ruby/internal/attr/noreturn.h"
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#include "ruby/internal/attr/artificial.h"
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#include "ruby/internal/attr/maybe_unused.h"
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#include "ruby/internal/attr/pure.h"
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#include "ruby/internal/dllexport.h"
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#include "ruby/internal/special_consts.h"
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#include "ruby/internal/stdbool.h"
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#include "ruby/internal/value.h"
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RBIMPL_SYMBOL_EXPORT_BEGIN()
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@ -417,4 +421,422 @@ void rb_gc_register_mark_object(VALUE object);
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RBIMPL_SYMBOL_EXPORT_END()
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/**
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* @private
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*
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* @deprecated This macro once was a thing in the old days, but makes no sense
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* any longer today. Exists here for backwards compatibility
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* only. You can safely forget about it.
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*/
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#undef USE_RGENGC
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#define USE_RGENGC 1
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/**
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* @private
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*
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* This is a compile-time flag to enable/disable incremental GC feature. It
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* has to be set at the time ruby itself compiles. Makes no sense for 3rd
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* parties. It is safe for them to set this though; that just doesn't change
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* anything.
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*/
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#ifndef USE_RINCGC
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# define USE_RINCGC 1
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#endif
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/**
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* @deprecated This macro seems broken. Setting this to anything other than
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* zero just doesn't compile. We need to KonMari.
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*/
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#ifndef USE_RGENGC_LOGGING_WB_UNPROTECT
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# define USE_RGENGC_LOGGING_WB_UNPROTECT 0
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#endif
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/**
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* @private
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*
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* This is a compile-time flag to enable/disable write barrier for
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* struct ::RArray. It has to be set at the time ruby itself compiles. Makes
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* no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_ARRAY
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# define RGENGC_WB_PROTECTED_ARRAY 1
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#endif
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/**
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* @private
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*
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* This is a compile-time flag to enable/disable write barrier for
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* struct ::RHash. It has to be set at the time ruby itself compiles. Makes
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* no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_HASH
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# define RGENGC_WB_PROTECTED_HASH 1
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#endif
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/**
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* @private
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*
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* This is a compile-time flag to enable/disable write barrier for
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* struct ::RStruct. It has to be set at the time ruby itself compiles. Makes
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* no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_STRUCT
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# define RGENGC_WB_PROTECTED_STRUCT 1
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#endif
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/**
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* @private
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*
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* This is a compile-time flag to enable/disable write barrier for
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* struct ::RString. It has to be set at the time ruby itself compiles. Makes
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* no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_STRING
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# define RGENGC_WB_PROTECTED_STRING 1
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#endif
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/**
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* @private
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*
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* This is a compile-time flag to enable/disable write barrier for
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* struct ::RObject. It has to be set at the time ruby itself compiles. Makes
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* no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_OBJECT
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# define RGENGC_WB_PROTECTED_OBJECT 1
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#endif
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|
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/**
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* @private
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*
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* This is a compile-time flag to enable/disable write barrier for
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* struct ::RRegexp. It has to be set at the time ruby itself compiles. Makes
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* no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_REGEXP
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# define RGENGC_WB_PROTECTED_REGEXP 1
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#endif
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|
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/**
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* @private
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*
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* This is a compile-time flag to enable/disable write barrier for
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* struct ::RMatch. It has to be set at the time ruby itself compiles. Makes
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* no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_MATCH
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# define RGENGC_WB_PROTECTED_MATCH 1
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#endif
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/**
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* @private
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||||
*
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* This is a compile-time flag to enable/disable write barrier for
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* struct ::RClass. It has to be set at the time ruby itself compiles. Makes
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* no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_CLASS
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# define RGENGC_WB_PROTECTED_CLASS 1
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#endif
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/**
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* @private
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*
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* This is a compile-time flag to enable/disable write barrier for
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* struct ::RFloat. It has to be set at the time ruby itself compiles. Makes
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* no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_FLOAT
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# define RGENGC_WB_PROTECTED_FLOAT 1
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#endif
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|
||||
/**
|
||||
* @private
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||||
*
|
||||
* This is a compile-time flag to enable/disable write barrier for
|
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* struct ::RComplex. It has to be set at the time ruby itself compiles.
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||||
* Makes no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_COMPLEX
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# define RGENGC_WB_PROTECTED_COMPLEX 1
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#endif
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||||
/**
|
||||
* @private
|
||||
*
|
||||
* This is a compile-time flag to enable/disable write barrier for
|
||||
* struct ::RRational. It has to be set at the time ruby itself compiles.
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||||
* Makes no sense for 3rd parties.
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*/
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#ifndef RGENGC_WB_PROTECTED_RATIONAL
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# define RGENGC_WB_PROTECTED_RATIONAL 1
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#endif
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/**
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||||
* @private
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||||
*
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||||
* This is a compile-time flag to enable/disable write barrier for
|
||||
* struct ::RBignum. It has to be set at the time ruby itself compiles. Makes
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||||
* no sense for 3rd parties.
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||||
*/
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#ifndef RGENGC_WB_PROTECTED_BIGNUM
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# define RGENGC_WB_PROTECTED_BIGNUM 1
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#endif
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||||
|
||||
/**
|
||||
* @private
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||||
*
|
||||
* @deprecated This macro once was a thing in the old days, but makes no sense
|
||||
* any longer today. Exists here for backwards compatibility
|
||||
* only. You can safely forget about it.
|
||||
*
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* @internal
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||||
*
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||||
* @shyouhei doesn't think anybody uses this right now.
|
||||
*/
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#ifndef RGENGC_WB_PROTECTED_NODE_CREF
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# define RGENGC_WB_PROTECTED_NODE_CREF 1
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#endif
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/**
|
||||
* @defgroup rgengc Write barrier (WB) interfaces:
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||||
*
|
||||
* @note The following core interfaces can be changed in the future. Please
|
||||
* catch up if you want to insert WB into C-extensions correctly.
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||||
*
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||||
* @{
|
||||
*/
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||||
|
||||
/**
|
||||
* Declaration of a "back" pointer. This is a write barrier for new reference
|
||||
* from "old" generation to "young" generation. It writes `young` into
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||||
* `*slot`, which is a pointer inside of `old`.
|
||||
*
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||||
* @param[in] old An old object.
|
||||
* @param[in] slot A pointer inside of `old`.
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* @param[out] young A young object.
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*/
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#define RB_OBJ_WRITE(old, slot, young) \
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RBIMPL_CAST(rb_obj_write((VALUE)(old), (VALUE *)(slot), (VALUE)(young), __FILE__, __LINE__))
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|
||||
/**
|
||||
* Identical to #RB_OBJ_WRITE(), except it doesn't write any values, but only a
|
||||
* WB declaration. `oldv` is replaced value with `b` (not used in current
|
||||
* Ruby).
|
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*
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* @param[in] old An old object.
|
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* @param[in] oldv An object previously stored inside of `old`.
|
||||
* @param[out] young A young object.
|
||||
*/
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#define RB_OBJ_WRITTEN(old, oldv, young) \
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RBIMPL_CAST(rb_obj_written((VALUE)(old), (VALUE)(oldv), (VALUE)(young), __FILE__, __LINE__))
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/** @} */
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#define OBJ_PROMOTED_RAW RB_OBJ_PROMOTED_RAW /**< @old{RB_OBJ_PROMOTED_RAW} */
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#define OBJ_PROMOTED RB_OBJ_PROMOTED /**< @old{RB_OBJ_PROMOTED} */
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#define OBJ_WB_UNPROTECT RB_OBJ_WB_UNPROTECT /**< @old{RB_OBJ_WB_UNPROTECT} */
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|
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/**
|
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* Asserts that the passed object is not fenced by write barriers. Objects of
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||||
* such property do not contribute to generational GCs. They are scanned
|
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* always.
|
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*
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* @param[out] x An object that would not be protected by the barrier.
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*/
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#define RB_OBJ_WB_UNPROTECT(x) rb_obj_wb_unprotect(x, __FILE__, __LINE__)
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|
||||
/**
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||||
* Identical to #RB_OBJ_WB_UNPROTECT(), except it can also assert that the
|
||||
* given object is of given type.
|
||||
*
|
||||
* @param[in] type One of `ARRAY`, `STRING`, etc.
|
||||
* @param[out] obj An object of `type` that would not be protected.
|
||||
*
|
||||
* @internal
|
||||
*
|
||||
* @shyouhei doesn't understand why this has to be visible from extensions.
|
||||
*/
|
||||
#define RB_OBJ_WB_UNPROTECT_FOR(type, obj) \
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(RGENGC_WB_PROTECTED_##type ? OBJ_WB_UNPROTECT(obj) : obj)
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||||
|
||||
/**
|
||||
* @private
|
||||
*
|
||||
* This is an implementation detail of rb_obj_wb_unprotect(). People don't use
|
||||
* it directly.
|
||||
*/
|
||||
#define RGENGC_LOGGING_WB_UNPROTECT rb_gc_unprotect_logging
|
||||
|
||||
/** @cond INTERNAL_MACRO */
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||||
#define RB_OBJ_PROMOTED_RAW RB_OBJ_PROMOTED_RAW
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||||
#define RB_OBJ_PROMOTED RB_OBJ_PROMOTED
|
||||
/** @endcond */
|
||||
|
||||
RBIMPL_SYMBOL_EXPORT_BEGIN()
|
||||
/**
|
||||
* This is the implementation of #RB_OBJ_WRITE(). People don't use it
|
||||
* directly.
|
||||
*
|
||||
* @param[in] old An object that points to `young`.
|
||||
* @param[out] young An object that is referenced from `old`.
|
||||
*/
|
||||
void rb_gc_writebarrier(VALUE old, VALUE young);
|
||||
|
||||
/**
|
||||
* This is the implementation of #RB_OBJ_WB_UNPROTECT(). People don't use it
|
||||
* directly.
|
||||
*
|
||||
* @param[out] obj An object that does not participate in WB.
|
||||
*/
|
||||
void rb_gc_writebarrier_unprotect(VALUE obj);
|
||||
|
||||
#if USE_RGENGC_LOGGING_WB_UNPROTECT
|
||||
/**
|
||||
* @private
|
||||
*
|
||||
* This is the implementation of #RGENGC_LOGGING_WB_UNPROTECT(). People
|
||||
* don't use it directly.
|
||||
*
|
||||
* @param[in] objptr Don't know why this is a pointer to void but in
|
||||
* reality this is a pointer to an object that is about
|
||||
* to be un-protected.
|
||||
* @param[in] filename Pass C's `__FILE__` here.
|
||||
* @param[in] line Pass C's `__LINE__` here.
|
||||
*/
|
||||
void rb_gc_unprotect_logging(void *objptr, const char *filename, int line);
|
||||
#endif
|
||||
|
||||
RBIMPL_SYMBOL_EXPORT_END()
|
||||
|
||||
RBIMPL_ATTR_PURE_UNLESS_DEBUG()
|
||||
RBIMPL_ATTR_ARTIFICIAL()
|
||||
/**
|
||||
* This is the implementation of #RB_OBJ_PROMOTED(). People don't use it
|
||||
* directly.
|
||||
*
|
||||
* @param[in] obj An object to query.
|
||||
* @retval true The object is "promoted".
|
||||
* @retval false The object is young. Have not experienced GC at all.
|
||||
*/
|
||||
static inline bool
|
||||
RB_OBJ_PROMOTED_RAW(VALUE obj)
|
||||
{
|
||||
RBIMPL_ASSERT_OR_ASSUME(RB_FL_ABLE(obj));
|
||||
return RB_FL_ANY_RAW(obj, RUBY_FL_PROMOTED);
|
||||
}
|
||||
|
||||
RBIMPL_ATTR_PURE_UNLESS_DEBUG()
|
||||
RBIMPL_ATTR_ARTIFICIAL()
|
||||
/**
|
||||
* Tests if the object is "promoted" -- that is, whether the object experienced
|
||||
* one or more GC marks.
|
||||
*
|
||||
* @param[in] obj An object to query.
|
||||
* @retval true The object is "promoted".
|
||||
* @retval false The object is young. Have not experienced GC at all.
|
||||
* @note Hello, is anyone actively calling this function? @shyouhei have
|
||||
* never seen any actual usages outside of the GC implementation
|
||||
* itself.
|
||||
*/
|
||||
static inline bool
|
||||
RB_OBJ_PROMOTED(VALUE obj)
|
||||
{
|
||||
if (! RB_FL_ABLE(obj)) {
|
||||
return false;
|
||||
}
|
||||
else {
|
||||
return RB_OBJ_PROMOTED_RAW(obj);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This is the implementation of #RB_OBJ_WB_UNPROTECT(). People don't use it
|
||||
* directly.
|
||||
*
|
||||
* @param[out] x An object that does not participate in WB.
|
||||
* @param[in] filename C's `__FILE__` of the caller function.
|
||||
* @param[in] line C's `__LINE__` of the caller function.
|
||||
* @return x
|
||||
*/
|
||||
static inline VALUE
|
||||
rb_obj_wb_unprotect(
|
||||
VALUE x,
|
||||
RBIMPL_ATTR_MAYBE_UNUSED()
|
||||
const char *filename,
|
||||
RBIMPL_ATTR_MAYBE_UNUSED()
|
||||
int line)
|
||||
{
|
||||
#if USE_RGENGC_LOGGING_WB_UNPROTECT
|
||||
RGENGC_LOGGING_WB_UNPROTECT(RBIMPL_CAST((void *)x), filename, line);
|
||||
#endif
|
||||
rb_gc_writebarrier_unprotect(x);
|
||||
return x;
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
*
|
||||
* This is the implementation of #RB_OBJ_WRITTEN(). People don't use it
|
||||
* directly.
|
||||
*
|
||||
* @param[in] a An old object.
|
||||
* @param[in] oldv An object previously stored inside of `old`.
|
||||
* @param[out] b A young object.
|
||||
* @param[in] filename C's `__FILE__` of the caller function.
|
||||
* @param[in] line C's `__LINE__` of the caller function.
|
||||
* @return a
|
||||
*/
|
||||
static inline VALUE
|
||||
rb_obj_written(
|
||||
VALUE a,
|
||||
RBIMPL_ATTR_MAYBE_UNUSED()
|
||||
VALUE oldv,
|
||||
VALUE b,
|
||||
RBIMPL_ATTR_MAYBE_UNUSED()
|
||||
const char *filename,
|
||||
RBIMPL_ATTR_MAYBE_UNUSED()
|
||||
int line)
|
||||
{
|
||||
#if USE_RGENGC_LOGGING_WB_UNPROTECT
|
||||
RGENGC_LOGGING_OBJ_WRITTEN(a, oldv, b, filename, line);
|
||||
#endif
|
||||
|
||||
if (!RB_SPECIAL_CONST_P(b)) {
|
||||
rb_gc_writebarrier(a, b);
|
||||
}
|
||||
|
||||
return a;
|
||||
}
|
||||
|
||||
/**
|
||||
* @private
|
||||
*
|
||||
* This is the implementation of #RB_OBJ_WRITE(). People don't use it
|
||||
* directly.
|
||||
*
|
||||
* @param[in] a An old object.
|
||||
* @param[in] slot A pointer inside of `old`.
|
||||
* @param[out] b A young object.
|
||||
* @param[in] filename C's `__FILE__` of the caller function.
|
||||
* @param[in] line C's `__LINE__` of the caller function.
|
||||
* @return a
|
||||
*/
|
||||
static inline VALUE
|
||||
rb_obj_write(
|
||||
VALUE a, VALUE *slot, VALUE b,
|
||||
RBIMPL_ATTR_MAYBE_UNUSED()
|
||||
const char *filename,
|
||||
RBIMPL_ATTR_MAYBE_UNUSED()
|
||||
int line)
|
||||
{
|
||||
#ifdef RGENGC_LOGGING_WRITE
|
||||
RGENGC_LOGGING_WRITE(a, slot, b, filename, line);
|
||||
#endif
|
||||
|
||||
*slot = b;
|
||||
|
||||
rb_obj_written(a, RUBY_Qundef /* ignore `oldv' now */, b, filename, line);
|
||||
return a;
|
||||
}
|
||||
|
||||
#endif /* RBIMPL_GC_H */
|
||||
|
|
|
|||
|
|
@ -43,7 +43,6 @@
|
|||
#include "ruby/internal/method.h"
|
||||
#include "ruby/internal/module.h"
|
||||
#include "ruby/internal/newobj.h"
|
||||
#include "ruby/internal/rgengc.h"
|
||||
#include "ruby/internal/scan_args.h"
|
||||
#include "ruby/internal/special_consts.h"
|
||||
#include "ruby/internal/symbol.h"
|
||||
|
|
|
|||
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