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Desperate attempt to push part of prepared statements cleanup which was

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reviewed in Saint-Petersbourg (including post-review fixes).
This commit is contained in:
konstantin@oak.local
2004-03-02 22:39:50 +03:00
parent 0a27eef814
commit 8cc8b0ea5c
11 changed files with 437 additions and 395 deletions
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13
sql/sql_class.cc
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@ -145,8 +145,7 @@ THD::THD():user_time(0), current_statement(0), is_fatal_error(0),
init();
/* Initialize sub structures */
bzero((char*) &transaction.mem_root,sizeof(transaction.mem_root));
bzero((char*) &warn_root,sizeof(warn_root));
clear_alloc_root(&transaction.mem_root);
init_alloc_root(&warn_root, WARN_ALLOC_BLOCK_SIZE, WARN_ALLOC_PREALLOC_SIZE);
user_connect=(USER_CONN *)0;
hash_init(&user_vars, &my_charset_bin, USER_VARS_HASH_SIZE, 0, 0,
@ -331,7 +330,7 @@ THD::~THD()
dbug_sentry = THD_SENTRY_GONE;
#endif
/* Reset stmt_backup.mem_root to not double-free memory from thd.mem_root */
init_alloc_root(&stmt_backup.mem_root, 0, 0);
clear_alloc_root(&stmt_backup.mem_root);
DBUG_VOID_RETURN;
}
@ -1185,10 +1184,8 @@ int select_dumpvar::prepare(List<Item> &list, SELECT_LEX_UNIT *u)
Statement::Statement(THD *thd)
:id(++thd->statement_id_counter),
query_id(thd->query_id),
set_query_id(1),
allow_sum_func(0),
command(thd->command),
lex(&main_lex),
query(0),
query_length(0),
@ -1207,10 +1204,8 @@ Statement::Statement(THD *thd)
Statement::Statement()
:id(0),
query_id(0), /* initialized later */
set_query_id(1),
allow_sum_func(0), /* initialized later */
command(COM_SLEEP), /* initialized later */
lex(&main_lex),
query(0), /* these two are set */
query_length(0), /* in alloc_query() */
@ -1229,15 +1224,11 @@ Statement::Type Statement::type() const
void Statement::set_statement(Statement *stmt)
{
id= stmt->id;
query_id= stmt->query_id;
set_query_id= stmt->set_query_id;
allow_sum_func= stmt->allow_sum_func;
command= stmt->command;
lex= stmt->lex;
query= stmt->query;
query_length= stmt->query_length;
free_list= stmt->free_list;
mem_root= stmt->mem_root;
}