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Merge bk-internal.mysql.com:/home/bk/mysql-5.0

Browse Source 
into  mysql.com:/home/dlenev/src/mysql-5.0-is
This commit is contained in:
dlenev@mysql.com
2005-08-09 11:43:55 +04:00
parent 10e5ee5196 615baa9f23
commit 0c38d33507
15 changed files with 159 additions and 109 deletions
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49
sql/sql_class.cc
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@ -157,8 +157,8 @@ bool foreign_key_prefix(Key *a, Key *b)
** Thread specific functions
****************************************************************************/
Open_tables_state::Open_tables_state()
:version(refresh_version)
Open_tables_state::Open_tables_state(ulong version_arg)
:version(version_arg)
{
reset_open_tables_state();
}
@ -172,7 +172,7 @@ Open_tables_state::Open_tables_state()
THD::THD()
:Statement(CONVENTIONAL_EXECUTION, 0, ALLOC_ROOT_MIN_BLOCK_SIZE, 0),
Open_tables_state(),
Open_tables_state(refresh_version),
lock_id(&main_lock_id),
user_time(0), in_sub_stmt(FALSE), global_read_lock(0), is_fatal_error(0),
rand_used(0), time_zone_used(0),
@ -1813,31 +1813,26 @@ void THD::set_status_var_init()
access to mysql.proc table to find definitions of stored routines.
****************************************************************************/
bool THD::push_open_tables_state()
void THD::reset_n_backup_open_tables_state(Open_tables_state *backup)
{
Open_tables_state *state;
DBUG_ENTER("push_open_table_state");
/* Currently we only push things one level */
DBUG_ASSERT(open_state_list.elements == 0);
if (!(state= (Open_tables_state*) alloc(sizeof(*state))))
DBUG_RETURN(1); // Fatal error is set
/* Store state for currently open tables */
state->set_open_tables_state(this);
if (open_state_list.push_back(state, mem_root))
DBUG_RETURN(1); // Fatal error is set
DBUG_ENTER("reset_n_backup_open_tables_state");
backup->set_open_tables_state(this);
reset_open_tables_state();
DBUG_RETURN(0);
}
void THD::pop_open_tables_state()
{
Open_tables_state *state;
DBUG_ENTER("pop_open_table_state");
/* Currently we only push things one level */
DBUG_ASSERT(open_state_list.elements == 1);
state= open_state_list.pop();
set_open_tables_state(state);
DBUG_VOID_RETURN;
}
void THD::restore_backup_open_tables_state(Open_tables_state *backup)
{
DBUG_ENTER("restore_backup_open_tables_state");
/*
Before we will throw away current open tables state we want
to be sure that it was properly cleaned up.
*/
DBUG_ASSERT(open_tables == 0 && temporary_tables == 0 &&
handler_tables == 0 && derived_tables == 0 &&
lock == 0 && locked_tables == 0 &&
prelocked_mode == NON_PRELOCKED);
set_open_tables_state(backup);
DBUG_VOID_RETURN;
}