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Fix 'n' concurrent prepared executions

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sql/sql_prepare.cc:
  Fix 'n' concurrent executions
libmysql/errmsg.c:
  Fix the missing semicolon for errors
libmysql/libmysql.c:
  Fix the result meta info for non-SELECT statements
This commit is contained in:
unknown
2003-01-30 00:38:11 -08:00
parent a8abb0471e
commit 7d0d2d4f85
4 changed files with 48 additions and 21 deletions
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22
sql/sql_prepare.cc
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@ -684,6 +684,7 @@ static bool init_param_items(PREP_STMT *stmt)
List<Item> &params= stmt->thd->lex.param_list;
Item_param **to;
stmt->lex= stmt->thd->lex;
if (!stmt->param_count)
stmt->param= (Item_param **)0;
else
@ -705,7 +706,7 @@ static bool init_param_items(PREP_STMT *stmt)
static void init_stmt_execute(PREP_STMT *stmt)
{
THD *thd= stmt->thd;
TABLE_LIST *tables=(TABLE_LIST*) thd->lex.select_lex.table_list.first;
TABLE_LIST *tables= (TABLE_LIST*) thd->lex.select_lex.table_list.first;
/*
TODO: When the new table structure is ready, then have a status bit
@ -713,7 +714,7 @@ static void init_stmt_execute(PREP_STMT *stmt)
and open the tables back.
*/
if (tables)
tables->table=0; //safety - nasty init
tables->table= 0; //safety - nasty init
}
/*
@ -796,10 +797,8 @@ void mysql_stmt_execute(THD *thd, char *packet)
DBUG_VOID_RETURN;
}
if (my_pthread_setspecific_ptr(THR_THD, stmt->thd) ||
my_pthread_setspecific_ptr(THR_MALLOC, &stmt->thd->mem_root))
DBUG_VOID_RETURN;
LEX thd_lex= thd->lex;
thd->lex= stmt->lex;
init_stmt_execute(stmt);
if (stmt->param_count && setup_params_data(stmt))
@ -814,17 +813,14 @@ void mysql_stmt_execute(THD *thd, char *packet)
mysql_delete(), mysql_update() and mysql_select() to not to
have re-check on setup_* and other things ..
*/
THD *cur_thd= stmt->thd;
cur_thd->protocol= &cur_thd->protocol_prep; // Switch to binary protocol
mysql_execute_command(cur_thd);
cur_thd->protocol= &cur_thd->protocol_simple; // Use normal protocol
thd->protocol= &thd->protocol_prep; // Switch to binary protocol
mysql_execute_command(thd);
thd->protocol= &thd->protocol_simple; // Use normal protocol
if (!(specialflag & SPECIAL_NO_PRIOR))
my_pthread_setprio(pthread_self(), WAIT_PRIOR);
my_pthread_setspecific_ptr(THR_THD, thd);
my_pthread_setspecific_ptr(THR_MALLOC, &thd->mem_root);
thd->lex= thd_lex;
DBUG_VOID_RETURN;
}