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#ifndef RBIMPL_RDATA_H /*-*-C++-*-vi:se ft=cpp:*/
#define RBIMPL_RDATA_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 Defines struct ::RData.
*/
#include "ruby/impl/config.h"
#ifdef STDC_HEADERS
# include <stddef.h>
#endif
#include "ruby/impl/attr/deprecated.h"
#include "ruby/impl/attr/warning.h"
#include "ruby/impl/cast.h"
#include "ruby/impl/core/rbasic.h"
#include "ruby/impl/dllexport.h"
#include "ruby/impl/fl_type.h"
#include "ruby/impl/token_paste.h"
#include "ruby/impl/value.h"
#include "ruby/impl/value_type.h"
#include "ruby/defines.h"
#ifdef RUBY_UNTYPED_DATA_WARNING
# /* Take that. */
#elif defined(RUBY_EXPORT)
# define RUBY_UNTYPED_DATA_WARNING 1
#else
# define RUBY_UNTYPED_DATA_WARNING 0
#endif
/** @cond INTERNAL_MACRO */
#define RBIMPL_DATA_FUNC(f) RBIMPL_CAST((void (*)(void *))(f))
#define RBIMPL_ATTRSET_UNTYPED_DATA_FUNC() \
RBIMPL_ATTR_WARNING(("untyped Data is unsafe; use TypedData instead")) \
RBIMPL_ATTR_DEPRECATED(("by TypedData"))
/** @endcond */
#define RDATA(obj) RBIMPL_CAST((struct RData *)(obj))
#define DATA_PTR(obj) RDATA(obj)->data
#define RUBY_MACRO_SELECT RBIMPL_TOKEN_PASTE
#define RUBY_DEFAULT_FREE RBIMPL_DATA_FUNC(-1)
#define RUBY_NEVER_FREE RBIMPL_DATA_FUNC(0)
#define RUBY_UNTYPED_DATA_FUNC(f) f RBIMPL_ATTRSET_UNTYPED_DATA_FUNC()
/*
#define RUBY_DATA_FUNC(func) ((void (*)(void*))(func))
*/
typedef void (*RUBY_DATA_FUNC)(void*);
struct RData {
struct RBasic basic;
RUBY_DATA_FUNC dmark;
RUBY_DATA_FUNC dfree;
void *data;
};
RBIMPL_SYMBOL_EXPORT_BEGIN()
VALUE rb_data_object_wrap(VALUE klass, void *datap, RUBY_DATA_FUNC dmark, RUBY_DATA_FUNC dfree);
VALUE rb_data_object_zalloc(VALUE klass, size_t size, RUBY_DATA_FUNC dmark, RUBY_DATA_FUNC dfree);
RBIMPL_SYMBOL_EXPORT_END()
#define Data_Wrap_Struct(klass, mark, free, sval) \
rb_data_object_wrap( \
(klass), \
(sval), \
RBIMPL_DATA_FUNC(mark), \
RBIMPL_DATA_FUNC(free))
#define Data_Make_Struct0(result, klass, type, size, mark, free, sval) \
VALUE result = rb_data_object_zalloc( \
(klass), \
(size), \
RBIMPL_DATA_FUNC(mark), \
RBIMPL_DATA_FUNC(free)); \
(sval) = RBIMPL_CAST((type *)DATA_PTR(result)); \
RBIMPL_CAST(/*suppress unused variable warnings*/(void)(sval))
#ifdef HAVE_STMT_AND_DECL_IN_EXPR
#define Data_Make_Struct(klass, type, mark, free, sval) \
RB_GNUC_EXTENSION({ \
Data_Make_Struct0( \
data_struct_obj, \
klass, \
type, \
sizeof(type), \
mark, \
free, \
sval); \
data_struct_obj; \
})
#else
#define Data_Make_Struct(klass, type, mark, free, sval) \
rb_data_object_make( \
(klass), \
RBIMPL_DATA_FUNC(mark), \
RBIMPL_DATA_FUNC(free), \
RBIMPL_CAST((void **)&(sval)), \
sizeof(type))
#endif
#define Data_Get_Struct(obj, type, sval) \
((sval) = RBIMPL_CAST((type*)rb_data_object_get(obj)))
RBIMPL_ATTRSET_UNTYPED_DATA_FUNC()
static inline VALUE
rb_data_object_wrap_warning(VALUE klass, void *ptr, RUBY_DATA_FUNC mark, RUBY_DATA_FUNC free)
{
return rb_data_object_wrap(klass, ptr, mark, free);
}
static inline void *
rb_data_object_get(VALUE obj)
{
Check_Type(obj, RUBY_T_DATA);
return DATA_PTR(obj);
}
RBIMPL_ATTRSET_UNTYPED_DATA_FUNC()
static inline void *
rb_data_object_get_warning(VALUE obj)
{
return rb_data_object_get(obj);
}
#if defined(HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR_CONSTANT_P)
# define rb_data_object_wrap_warning(klass, ptr, mark, free) \
RB_GNUC_EXTENSION( \
__builtin_choose_expr( \
__builtin_constant_p(klass) && !(klass), \
rb_data_object_wrap(klass, ptr, mark, free), \
(rb_data_object_wrap_warning)(klass, ptr, mark, free)))
#endif
static inline VALUE
rb_data_object_make(VALUE klass, RUBY_DATA_FUNC mark_func, RUBY_DATA_FUNC free_func, void **datap, size_t size)
{
Data_Make_Struct0(result, klass, void, size, mark_func, free_func, *datap);
return result;
}
RBIMPL_ATTR_DEPRECATED(("by: rb_data_object_wrap"))
static inline VALUE
rb_data_object_alloc(VALUE klass, void *data, RUBY_DATA_FUNC dmark, RUBY_DATA_FUNC dfree)
{
return rb_data_object_wrap(klass, data, dmark, dfree);
}
#define rb_data_object_wrap_0 rb_data_object_wrap
#define rb_data_object_wrap_1 rb_data_object_wrap_warning
#define rb_data_object_wrap RUBY_MACRO_SELECT(rb_data_object_wrap_, RUBY_UNTYPED_DATA_WARNING)
#define rb_data_object_get_0 rb_data_object_get
#define rb_data_object_get_1 rb_data_object_get_warning
#define rb_data_object_get RUBY_MACRO_SELECT(rb_data_object_get_, RUBY_UNTYPED_DATA_WARNING)
#define rb_data_object_make_0 rb_data_object_make
#define rb_data_object_make_1 rb_data_object_make_warning
#define rb_data_object_make RUBY_MACRO_SELECT(rb_data_object_make_, RUBY_UNTYPED_DATA_WARNING)
#endif /* RBIMPL_RDATA_H */
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