database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-09-02 09:41:40 +03:00
Code Activity

Small cleanup in code handling stored routines/table prelocking.

Browse Source 
Use lazy initialization for Query_tables_list::sroutines hash.
This step should significantly decrease amount of memory consumed
by stored routines as we no longer will allocate chunk of memory
required for this HASH for each statement in routine.


include/hash.h:
  Introduced auxillary hash_init_opt() macro which simplifies
  lazy initialization of HASH objects.
sql/sp.cc:
  Use lazy initialization for Query_tables_list::sroutines hash.
  This step should significantly decrease amount of memory consumed
  by stored routines as we no longer will allocate chunk of memory
  required for this HASH for each statement in routine.
sql/sql_lex.cc:
  Use lazy initialization for Query_tables_list::sroutines hash.
  This step should significantly decrease amount of memory consumed
  by stored routines as we no longer will allocate chunk of memory
  required for this HASH for each statement in routine.
sql/sql_lex.h:
  Updated comment describing Query_tables_list::sroutines to
  reflect that now we are use lazy initialization for this hash.
  Added constant for initial size of this hash.
This commit is contained in:
unknown
2006-11-01 15:41:48 +03:00
parent b372ebc5ef
commit 57c2f22a54
4 changed files with 21 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/hash.h
View File

@@ -65,6 +65,8 @@ my_bool hash_check(HASH *hash); /* Only in debug library */
#define hash_clear(H) bzero((char*) (H),sizeof(*(H)))
#define hash_inited(H) ((H)->array.buffer != 0)
#define hash_init_opt(A,B,C,D,E,F,G,H) \
(!hash_inited(A) && _hash_init(A,B,C,D,E,F,G, H CALLER_INFO))
#ifdef __cplusplus
}