diff options
author | Koichi Sasada <ko1@atdot.net> | 2020-10-16 15:20:40 +0900 |
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committer | Koichi Sasada <ko1@atdot.net> | 2020-10-17 08:18:04 +0900 |
commit | f6661f50854e0cdccb03ee516a21ce62adf6c802 (patch) | |
tree | 72668d7b8a8cdbe7f84234bdd99e93a9049a7918 /internal | |
parent | 91ec5f9e39cf54dd7a157addb778293853571f13 (diff) |
sync RClass::ext::iv_index_tbl
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.
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/3662
Diffstat (limited to 'internal')
-rw-r--r-- | internal/class.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/internal/class.h b/internal/class.h index bb12825162..eade920ff0 100644 --- a/internal/class.h +++ b/internal/class.h @@ -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; |