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sync RClass::ext::iv_index_tbl

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iv_index_tbl manages instance variable indexes (ID -> index).
This data structure should be synchronized with other ractors
so introduce some VM locks.

This patch also introduced atomic ivar cache used by
set/getinlinecache instructions. To make updating ivar cache (IVC),
we changed iv_index_tbl data structure to manage (ID -> entry)
and an entry points serial and index. IVC points to this entry so
that cache update becomes atomically.
This commit is contained in:
Koichi Sasada 2020-10-16 15:20:40 +09:00
parent 91ec5f9e39
commit f6661f5085
Notes: git 2020-10-17 08:18:29 +09:00
13 changed files with 299 additions and 170 deletions
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8
internal/class.h
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@ -25,8 +25,14 @@ struct rb_subclass_entry {
struct rb_subclass_entry *next;
};
struct rb_iv_index_tbl_entry {
uint32_t index;
rb_serial_t class_serial;
VALUE class_value;
};
struct rb_classext_struct {
struct st_table *iv_index_tbl;
struct st_table *iv_index_tbl; // ID -> struct rb_iv_index_tbl_entry
struct st_table *iv_tbl;
#if SIZEOF_SERIAL_T == SIZEOF_VALUE /* otherwise m_tbl is in struct RClass */
struct rb_id_table *m_tbl;