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/*
* MessagePack for Ruby
*
* Copyright (C) 2008-2013 Sadayuki Furuhashi
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MSGPACK_RUBY_COMPAT_H__
#define MSGPACK_RUBY_COMPAT_H__
#include <stdbool.h>
#include "ruby.h"
#if defined(HAVE_RUBY_ST_H)
# include "ruby/st.h" /* ruby hash on Ruby 1.9 */
#elif defined(HAVE_ST_H)
# include "st.h" /* ruby hash on Ruby 1.8 */
#endif
/*
* ZALLOC_N (ruby 2.2 or later)
*/
#ifndef RB_ZALLOC_N
# define RB_ZALLOC_N(type,n) ((type*)ruby_xcalloc((size_t)(n),sizeof(type)))
#endif
#ifndef ZALLOC_N
# define ZALLOC_N(type,n) RB_ZALLOC_N(type,n)
#endif
/*
* COMPAT_HAVE_ENCODING
*/
#ifdef HAVE_RUBY_ENCODING_H
# include "ruby/encoding.h"
# define COMPAT_HAVE_ENCODING
#endif
#if defined(__MACRUBY__) /* MacRuby */
# undef COMPAT_HAVE_ENCODING
#endif
/*
* define STR_DUP_LIKELY_DOES_COPY
* check rb_str_dup actually copies the string or not
*/
#if defined(RUBY_VM) && defined(FL_ALL) && defined(FL_USER1) && defined(FL_USER3) /* MRI 1.9 */
# define STR_DUP_LIKELY_DOES_COPY(str) FL_ALL(str, FL_USER1|FL_USER3) /* same as STR_ASSOC_P(str) */
#elif defined(FL_TEST) && defined(ELTS_SHARED) /* MRI 1.8 */
# define STR_DUP_LIKELY_DOES_COPY(str) (!FL_TEST(str, ELTS_SHARED))
//#elif defined(RUBINIUS) || defined(JRUBY) /* Rubinius and JRuby */
#else
# define STR_DUP_LIKELY_DOES_COPY(str) (1)
#endif
/*
* SIZET2NUM
*/
#ifndef SIZET2NUM /* MRI 1.8 */
# define SIZET2NUM(v) ULL2NUM(v)
#endif
/*
* rb_errinfo()
*/
#if defined(RUBY_VM) /* MRI 1.9 */
# define COMPAT_RERAISE rb_exc_raise(rb_errinfo())
#elif defined(JRUBY) /* JRuby */
# define COMPAT_RERAISE rb_exc_raise(rb_gv_get("$!"))
#else /* MRI 1.8 and Rubinius */
# define COMPAT_RERAISE rb_exc_raise(ruby_errinfo)
#endif
/*
* RBIGNUM_POSITIVE_P
*/
#ifndef RBIGNUM_POSITIVE_P
# if defined(RUBINIUS) /* Rubinius <= v1.2.3 */
# define RBIGNUM_POSITIVE_P(b) (rb_funcall(b, rb_intern(">="), 1, INT2FIX(0)) == Qtrue)
# elif defined(JRUBY) /* JRuby */
# define RBIGNUM_POSITIVE_P(b) (rb_funcall(b, rb_intern(">="), 1, INT2FIX(0)) == Qtrue)
# define rb_big2ull(b) rb_num2ull(b)
/*#define rb_big2ll(b) rb_num2ll(b)*/
# else /* MRI 1.8 */
# define RBIGNUM_POSITIVE_P(b) (RBIGNUM(b)->sign)
# endif
#endif
/*
* RSTRING_PTR, RSTRING_LEN
*/
#ifndef RSTRING_PTR /* MRI 1.8.5 */
# define RSTRING_PTR(s) (RSTRING(s)->ptr)
#endif
#ifndef RSTRING_LEN /* MRI 1.8.5 */
# define RSTRING_LEN(s) (RSTRING(s)->len)
#endif
/*
* RSTRUCT_GET
*/
#ifndef RSTRUCT_GET
# ifdef RSTRUCT_PTR /* MRI <= 2.0.0 */
# define RSTRUCT_GET(st, idx) (RSTRUCT_PTR(st)[idx])
# else /* Rubinius */
# define RSTRUCT_GET(st, idx) (rb_struct_aref(st, INT2FIX(idx)))
# endif
#endif
#endif
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