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-/******************************************************
-Executes SQL stored procedures and their control structures
-
-(c) 1998 Innobase Oy
-
-Created 1/20/1998 Heikki Tuuri
-*******************************************************/
-
-#include "pars0pars.h"
-#include "que0que.h"
-#include "eval0eval.h"
-
-/**************************************************************************
-Performs an execution step of a procedure node. */
-UNIV_INLINE
-que_thr_t*
-proc_step(
-/*======*/
- /* out: query thread to run next or NULL */
- que_thr_t* thr) /* in: query thread */
-{
- proc_node_t* node;
-
- ut_ad(thr);
-
- node = 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. */
-UNIV_INLINE
-que_thr_t*
-proc_eval_step(
-/*===========*/
- /* out: query thread to run next or NULL */
- que_thr_t* thr) /* in: query thread */
-{
- func_node_t* node;
-
- ut_ad(thr);
-
- node = 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);
-}