diff options
Diffstat (limited to 'sql/sql_class.h')
| -rw-r--r-- | sql/sql_class.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sql/sql_class.h b/sql/sql_class.h index 4dea3acc5e7..76602e00074 100644 --- a/sql/sql_class.h +++ b/sql/sql_class.h @@ -315,6 +315,27 @@ typedef enum enum_diag_condition_item_name */ extern const LEX_STRING Diag_condition_item_names[]; +/** + Query_cache_tls -- query cache thread local data. +*/ + +class Query_cache_block; + +struct Query_cache_tls +{ + /* + 'first_query_block' should be accessed only via query cache + functions and methods to maintain proper locking. + */ + Query_cache_block *first_query_block; + void set_first_query_block(Query_cache_block *first_query_block_arg) + { + first_query_block= first_query_block_arg; + } + + Query_cache_tls() :first_query_block(NULL) {} +}; + #include "sql_lex.h" /* Must be here */ class Delayed_insert; @@ -1240,6 +1261,9 @@ public: */ struct st_mysql_stmt *current_stmt; #endif +#ifdef HAVE_QUERY_CACHE + Query_cache_tls query_cache_tls; +#endif NET net; // client connection descriptor Protocol *protocol; // Current protocol Protocol_text protocol_text; // Normal protocol |