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214ed4cbc6
This commit enables Arrays to move between size pools during compaction. This can occur if the array is mutated such that it would fit in a different size pool when embedded. The move is carried out in two stages: 1. The RVALUE is moved to a destination heap during object movement phase of compaction 2. The array data is re-embedded and the original buffer free'd if required. This happens during the update references step
116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
#ifndef INTERNAL_ARRAY_H /*-*-C-*-vi:se ft=c:*/
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#define INTERNAL_ARRAY_H
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/**
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* @author Ruby developers <ruby-core@ruby-lang.org>
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* @copyright This file is a part of the programming language Ruby.
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* Permission is hereby granted, to either redistribute and/or
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* modify this file, provided that the conditions mentioned in the
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* file COPYING are met. Consult the file for details.
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* @brief Internal header for Array.
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*/
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#include "ruby/internal/config.h"
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#include <stddef.h> /* for size_t */
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#include "internal/static_assert.h" /* for STATIC_ASSERT */
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#include "ruby/internal/stdbool.h" /* for bool */
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#include "ruby/ruby.h" /* for RARRAY_LEN */
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#ifndef ARRAY_DEBUG
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# define ARRAY_DEBUG (0+RUBY_DEBUG)
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#endif
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#define RARRAY_PTR_IN_USE_FLAG FL_USER14
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/* array.c */
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VALUE rb_ary_last(int, const VALUE *, VALUE);
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void rb_ary_set_len(VALUE, long);
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void rb_ary_delete_same(VALUE, VALUE);
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VALUE rb_ary_tmp_new_fill(long capa);
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VALUE rb_ary_at(VALUE, VALUE);
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size_t rb_ary_memsize(VALUE);
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VALUE rb_to_array_type(VALUE obj);
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VALUE rb_to_array(VALUE obj);
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void rb_ary_cancel_sharing(VALUE ary);
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size_t rb_ary_size_as_embedded(VALUE ary);
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void rb_ary_make_embedded(VALUE ary);
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bool rb_ary_embeddable_p(VALUE ary);
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static inline VALUE rb_ary_entry_internal(VALUE ary, long offset);
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static inline bool ARY_PTR_USING_P(VALUE ary);
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static inline void RARY_TRANSIENT_SET(VALUE ary);
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static inline void RARY_TRANSIENT_UNSET(VALUE ary);
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MJIT_SYMBOL_EXPORT_BEGIN
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VALUE rb_ary_tmp_new_from_values(VALUE, long, const VALUE *);
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VALUE rb_check_to_array(VALUE ary);
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VALUE rb_ary_behead(VALUE, long);
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VALUE rb_ary_aref1(VALUE ary, VALUE i);
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struct rb_execution_context_struct;
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VALUE rb_ec_ary_new_from_values(struct rb_execution_context_struct *ec, long n, const VALUE *elts);
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MJIT_SYMBOL_EXPORT_END
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// YJIT needs this function to never allocate and never raise
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static inline VALUE
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rb_ary_entry_internal(VALUE ary, long offset)
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{
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long len = RARRAY_LEN(ary);
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const VALUE *ptr = RARRAY_CONST_PTR_TRANSIENT(ary);
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if (len == 0) return Qnil;
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if (offset < 0) {
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offset += len;
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if (offset < 0) return Qnil;
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}
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else if (len <= offset) {
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return Qnil;
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}
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return ptr[offset];
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}
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static inline bool
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ARY_PTR_USING_P(VALUE ary)
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{
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return FL_TEST_RAW(ary, RARRAY_PTR_IN_USE_FLAG);
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}
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static inline void
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RARY_TRANSIENT_SET(VALUE ary)
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{
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#if USE_TRANSIENT_HEAP
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FL_SET_RAW(ary, RARRAY_TRANSIENT_FLAG);
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#endif
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}
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static inline void
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RARY_TRANSIENT_UNSET(VALUE ary)
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{
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#if USE_TRANSIENT_HEAP
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FL_UNSET_RAW(ary, RARRAY_TRANSIENT_FLAG);
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#endif
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}
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#undef rb_ary_new_from_args
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#if RBIMPL_HAS_WARNING("-Wgnu-zero-variadic-macro-arguments")
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# /* Skip it; clang -pedantic doesn't like the following */
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#elif defined(__GNUC__) && defined(HAVE_VA_ARGS_MACRO)
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#define rb_ary_new_from_args(n, ...) \
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__extension__ ({ \
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const VALUE args_to_new_ary[] = {__VA_ARGS__}; \
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if (__builtin_constant_p(n)) { \
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STATIC_ASSERT(rb_ary_new_from_args, numberof(args_to_new_ary) == (n)); \
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} \
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rb_ary_new_from_values(numberof(args_to_new_ary), args_to_new_ary); \
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})
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#endif
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#undef RARRAY_AREF
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RBIMPL_ATTR_PURE_UNLESS_DEBUG()
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RBIMPL_ATTR_ARTIFICIAL()
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static inline VALUE
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RARRAY_AREF(VALUE ary, long i)
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{
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RBIMPL_ASSERT_TYPE(ary, RUBY_T_ARRAY);
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return RARRAY_CONST_PTR_TRANSIENT(ary)[i];
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}
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#endif /* INTERNAL_ARRAY_H */
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