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Edit File : rgengc.h \| Size : 5.92 KB
#ifndef RBIMPL_RGENGC_H /--C++--vi:se ft=cpp:/ #define RBIMPL_RGENGC_H /** * @file * @author Ruby developers <ruby-core@ruby-lang.org> * @copyright This file is a part of the programming language Ruby. * Permission is hereby granted, to either redistribute and/or * modify this file, provided that the conditions mentioned in the * file COPYING are met. Consult the file for details. * @warning Symbols prefixed with either `RBIMPL` or `rbimpl` are * implementation details. Don't take them as canon. They could * rapidly appear then vanish. The name (path) of this header file * is also an implementation detail. Do not expect it to persist * at the place it is now. Developers are free to move it anywhere * anytime at will. * @note To ruby-core: remember that this header can be possibly * recursively included from extension libraries written in C++. * Do not expect for instance `__VA_ARGS__` is always available. * We assume C99 for ruby itself but we don't assume languages of * extension libraries. They could be written in C++98. * @brief RGENGC write-barrier APIs. * @see Sasada, K., "Gradual write-barrier insertion into a Ruby * interpreter", in proceedings of the 2019 ACM SIGPLAN * International Symposium on Memory Management (ISMM 2019), pp * 115-121, 2019. https://doi.org/10.1145/3315573.3329986 / #include "ruby/internal/attr/artificial.h" #include "ruby/internal/attr/pure.h" #include "ruby/internal/dllexport.h" #include "ruby/internal/special_consts.h" #include "ruby/internal/stdbool.h" #include "ruby/internal/value.h" #include "ruby/assert.h" #include "ruby/backward/2/attributes.h" #undef USE_RGENGC #define USE_RGENGC 1 #ifndef USE_RINCGC # define USE_RINCGC 1 #endif #ifndef USE_RGENGC_LOGGING_WB_UNPROTECT # define USE_RGENGC_LOGGING_WB_UNPROTECT 0 #endif #ifndef RGENGC_WB_PROTECTED_ARRAY # define RGENGC_WB_PROTECTED_ARRAY 1 #endif #ifndef RGENGC_WB_PROTECTED_HASH # define RGENGC_WB_PROTECTED_HASH 1 #endif #ifndef RGENGC_WB_PROTECTED_STRUCT # define RGENGC_WB_PROTECTED_STRUCT 1 #endif #ifndef RGENGC_WB_PROTECTED_STRING # define RGENGC_WB_PROTECTED_STRING 1 #endif #ifndef RGENGC_WB_PROTECTED_OBJECT # define RGENGC_WB_PROTECTED_OBJECT 1 #endif #ifndef RGENGC_WB_PROTECTED_REGEXP # define RGENGC_WB_PROTECTED_REGEXP 1 #endif #ifndef RGENGC_WB_PROTECTED_CLASS # define RGENGC_WB_PROTECTED_CLASS 1 #endif #ifndef RGENGC_WB_PROTECTED_FLOAT # define RGENGC_WB_PROTECTED_FLOAT 1 #endif #ifndef RGENGC_WB_PROTECTED_COMPLEX # define RGENGC_WB_PROTECTED_COMPLEX 1 #endif #ifndef RGENGC_WB_PROTECTED_RATIONAL # define RGENGC_WB_PROTECTED_RATIONAL 1 #endif #ifndef RGENGC_WB_PROTECTED_BIGNUM # define RGENGC_WB_PROTECTED_BIGNUM 1 #endif #ifndef RGENGC_WB_PROTECTED_NODE_CREF # define RGENGC_WB_PROTECTED_NODE_CREF 1 #endif /* * @name Write barrier (WB) interfaces: * @{ * * @note The following core interfaces can be changed in the future. Please * catch up if you want to insert WB into C-extensions correctly. / /* * WB for new reference from `a' to `b'. Write `b' into `slot'. `slot' is a pointer in `a'. / #define RB_OBJ_WRITE(a, slot, b) \ RBIMPL_CAST(rb_obj_write((VALUE)(a), (VALUE )(slot), (VALUE)(b), __FILE__, __LINE__)) /** * WB for new reference from `a' to `b'. This doesn't write any values, but * only a WB declaration. `oldv' is replaced value with `b' (not used in * current Ruby). / #define RB_OBJ_WRITTEN(a, oldv, b) \ RBIMPL_CAST(rb_obj_written((VALUE)(a), (VALUE)(oldv), (VALUE)(b), __FILE__, __LINE__)) /* @} / #define OBJ_PROMOTED_RAW RB_OBJ_PROMOTED_RAW #define OBJ_PROMOTED RB_OBJ_PROMOTED #define OBJ_WB_UNPROTECT RB_OBJ_WB_UNPROTECT #define RB_OBJ_WB_UNPROTECT(x) rb_obj_wb_unprotect(x, __FILE__, __LINE__) #define RB_OBJ_WB_UNPROTECT_FOR(type, obj) \ (RGENGC_WB_PROTECTED_##type ? OBJ_WB_UNPROTECT(obj) : obj) #define RGENGC_LOGGING_WB_UNPROTECT rb_gc_unprotect_logging /* @cond INTERNAL_MACRO / #define RB_OBJ_PROMOTED_RAW RB_OBJ_PROMOTED_RAW #define RB_OBJ_PROMOTED RB_OBJ_PROMOTED /* @endcond / RBIMPL_SYMBOL_EXPORT_BEGIN() void rb_gc_writebarrier(VALUE a, VALUE b); void rb_gc_writebarrier_unprotect(VALUE obj); #if USE_RGENGC_LOGGING_WB_UNPROTECT 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() 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() static inline bool RB_OBJ_PROMOTED(VALUE obj) { if (! RB_FL_ABLE(obj)) { return false; } else { return RB_OBJ_PROMOTED_RAW(obj); } } static inline VALUE rb_obj_wb_unprotect(VALUE x, RB_UNUSED_VAR(const char filename), RB_UNUSED_VAR(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; } static inline VALUE rb_obj_written(VALUE a, RB_UNUSED_VAR(VALUE oldv), VALUE b, RB_UNUSED_VAR(const char filename), RB_UNUSED_VAR(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; } static inline VALUE rb_obj_write(VALUE a, VALUE slot, VALUE b, RB_UNUSED_VAR(const char filename), RB_UNUSED_VAR(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_RGENGC_H */ Back

Edit File : rgengc.h | Size : 5.92 KB

#ifndef RBIMPL_RGENGC_H                              /*-*-C++-*-vi:se ft=cpp:*/
#define RBIMPL_RGENGC_H
/**
 * @file
 * @author     Ruby developers <ruby-core@ruby-lang.org>
 * @copyright  This  file  is   a  part  of  the   programming  language  Ruby.
 *             Permission  is hereby  granted,  to  either redistribute  and/or
 *             modify this file, provided that  the conditions mentioned in the
 *             file COPYING are met.  Consult the file for details.
 * @warning    Symbols   prefixed  with   either  `RBIMPL`   or  `rbimpl`   are
 *             implementation details.   Don't take  them as canon.  They could
 *             rapidly appear then vanish.  The name (path) of this header file
 *             is also an  implementation detail.  Do not expect  it to persist
 *             at the place it is now.  Developers are free to move it anywhere
 *             anytime at will.
 * @note       To  ruby-core:  remember  that   this  header  can  be  possibly
 *             recursively included  from extension  libraries written  in C++.
 *             Do not  expect for  instance `__VA_ARGS__` is  always available.
 *             We assume C99  for ruby itself but we don't  assume languages of
 *             extension libraries. They could be written in C++98.
 * @brief      RGENGC write-barrier APIs.
 * @see        Sasada,  K.,  "Gradual  write-barrier   insertion  into  a  Ruby
 *             interpreter",   in  proceedings   of   the   2019  ACM   SIGPLAN
 *             International  Symposium on  Memory Management  (ISMM 2019),  pp
 *             115-121, 2019. https://doi.org/10.1145/3315573.3329986
 */
#include "ruby/internal/attr/artificial.h"
#include "ruby/internal/attr/pure.h"
#include "ruby/internal/dllexport.h"
#include "ruby/internal/special_consts.h"
#include "ruby/internal/stdbool.h"
#include "ruby/internal/value.h"
#include "ruby/assert.h"
#include "ruby/backward/2/attributes.h"

#undef USE_RGENGC
#define USE_RGENGC 1

#ifndef USE_RINCGC
# define USE_RINCGC 1
#endif

#ifndef USE_RGENGC_LOGGING_WB_UNPROTECT
# define USE_RGENGC_LOGGING_WB_UNPROTECT 0
#endif

#ifndef RGENGC_WB_PROTECTED_ARRAY
# define RGENGC_WB_PROTECTED_ARRAY 1
#endif

#ifndef RGENGC_WB_PROTECTED_HASH
# define RGENGC_WB_PROTECTED_HASH 1
#endif

#ifndef RGENGC_WB_PROTECTED_STRUCT
# define RGENGC_WB_PROTECTED_STRUCT 1
#endif

#ifndef RGENGC_WB_PROTECTED_STRING
# define RGENGC_WB_PROTECTED_STRING 1
#endif

#ifndef RGENGC_WB_PROTECTED_OBJECT
# define RGENGC_WB_PROTECTED_OBJECT 1
#endif

#ifndef RGENGC_WB_PROTECTED_REGEXP
# define RGENGC_WB_PROTECTED_REGEXP 1
#endif

#ifndef RGENGC_WB_PROTECTED_CLASS
# define RGENGC_WB_PROTECTED_CLASS 1
#endif

#ifndef RGENGC_WB_PROTECTED_FLOAT
# define RGENGC_WB_PROTECTED_FLOAT 1
#endif

#ifndef RGENGC_WB_PROTECTED_COMPLEX
# define RGENGC_WB_PROTECTED_COMPLEX 1
#endif

#ifndef RGENGC_WB_PROTECTED_RATIONAL
# define RGENGC_WB_PROTECTED_RATIONAL 1
#endif

#ifndef RGENGC_WB_PROTECTED_BIGNUM
# define RGENGC_WB_PROTECTED_BIGNUM 1
#endif

#ifndef RGENGC_WB_PROTECTED_NODE_CREF
# define RGENGC_WB_PROTECTED_NODE_CREF 1
#endif

/**
 * @name Write barrier (WB) interfaces:
 * @{
 *
 * @note The following  core interfaces can  be changed in the  future.  Please
 *       catch up if you want to insert WB into C-extensions correctly.
 */

/**
 * WB for new  reference from `a' to  `b'. Write `b' into `*slot'.  `slot' is a
 * pointer in `a'.
 */
#define RB_OBJ_WRITE(a, slot, b) \
    RBIMPL_CAST(rb_obj_write((VALUE)(a), (VALUE *)(slot), (VALUE)(b), __FILE__, __LINE__))
/**
 * WB for new  reference from `a' to  `b'.  This doesn't write  any values, but
 * only  a WB  declaration.  `oldv'  is replaced  value with  `b' (not  used in
 * current Ruby).
 */
#define RB_OBJ_WRITTEN(a, oldv, b) \
    RBIMPL_CAST(rb_obj_written((VALUE)(a), (VALUE)(oldv), (VALUE)(b), __FILE__, __LINE__))
/** @} */

#define OBJ_PROMOTED_RAW RB_OBJ_PROMOTED_RAW
#define OBJ_PROMOTED     RB_OBJ_PROMOTED
#define OBJ_WB_UNPROTECT RB_OBJ_WB_UNPROTECT

#define RB_OBJ_WB_UNPROTECT(x) rb_obj_wb_unprotect(x, __FILE__, __LINE__)
#define RB_OBJ_WB_UNPROTECT_FOR(type, obj) \
    (RGENGC_WB_PROTECTED_##type ? OBJ_WB_UNPROTECT(obj) : obj)
#define RGENGC_LOGGING_WB_UNPROTECT rb_gc_unprotect_logging

/** @cond INTERNAL_MACRO */
#define RB_OBJ_PROMOTED_RAW RB_OBJ_PROMOTED_RAW
#define RB_OBJ_PROMOTED     RB_OBJ_PROMOTED
/** @endcond */

RBIMPL_SYMBOL_EXPORT_BEGIN()
void rb_gc_writebarrier(VALUE a, VALUE b);
void rb_gc_writebarrier_unprotect(VALUE obj);
#if USE_RGENGC_LOGGING_WB_UNPROTECT
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()
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()
static inline bool
RB_OBJ_PROMOTED(VALUE obj)
{
    if (! RB_FL_ABLE(obj)) {
        return false;
    }
    else {
        return RB_OBJ_PROMOTED_RAW(obj);
    }
}

static inline VALUE
rb_obj_wb_unprotect(VALUE x, RB_UNUSED_VAR(const char *filename), RB_UNUSED_VAR(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;
}

static inline VALUE
rb_obj_written(VALUE a, RB_UNUSED_VAR(VALUE oldv), VALUE b, RB_UNUSED_VAR(const char *filename), RB_UNUSED_VAR(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;
}

static inline VALUE
rb_obj_write(VALUE a, VALUE *slot, VALUE b, RB_UNUSED_VAR(const char *filename), RB_UNUSED_VAR(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_RGENGC_H */

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