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Diffstat (limited to '')
-rw-r--r-- | storage/innobase/include/eval0proc.ic | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/storage/innobase/include/eval0proc.ic b/storage/innobase/include/eval0proc.ic new file mode 100644 index 00000000..b0c5f75b --- /dev/null +++ b/storage/innobase/include/eval0proc.ic @@ -0,0 +1,88 @@ +/***************************************************************************** + +Copyright (c) 1998, 2013, Oracle and/or its affiliates. All Rights Reserved. + +This program is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free Software +Foundation; version 2 of the License. + +This program is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA + +*****************************************************************************/ + +/**************************************************//** +@file include/eval0proc.ic +Executes SQL stored procedures and their control structures + +Created 1/20/1998 Heikki Tuuri +*******************************************************/ + +#include "pars0pars.h" +#include "que0que.h" +#include "eval0eval.h" + +/**********************************************************************//** +Performs an execution step of a procedure node. +@return query thread to run next or NULL */ +UNIV_INLINE +que_thr_t* +proc_step( +/*======*/ + que_thr_t* thr) /*!< in: query thread */ +{ + proc_node_t* node; + + ut_ad(thr); + + node = static_cast<proc_node_t*>(thr->run_node); + ut_ad(que_node_get_type(node) == QUE_NODE_PROC); + + if (thr->prev_node == que_node_get_parent(node)) { + /* Start execution from the first statement in the statement + list */ + + thr->run_node = node->stat_list; + } else { + /* Move to the next statement */ + ut_ad(que_node_get_next(thr->prev_node) == NULL); + + thr->run_node = NULL; + } + + if (thr->run_node == NULL) { + thr->run_node = que_node_get_parent(node); + } + + return(thr); +} + +/**********************************************************************//** +Performs an execution step of a procedure call node. +@return query thread to run next or NULL */ +UNIV_INLINE +que_thr_t* +proc_eval_step( +/*===========*/ + que_thr_t* thr) /*!< in: query thread */ +{ + func_node_t* node; + + ut_ad(thr); + + node = static_cast<func_node_t*>(thr->run_node); + ut_ad(que_node_get_type(node) == QUE_NODE_FUNC); + + /* Evaluate the procedure */ + + eval_exp(node); + + thr->run_node = que_node_get_parent(node); + + return(thr); +} |