Function loc_advanced_command

sql/sql_prepare.cc:6375–6458

static my_bool
loc_advanced_command(MYSQL *mysql, enum enum_server_command command,
                     const uchar *header, ulong header_length,
                     const uchar *arg, ulong arg_length, my_bool skip_check,
                     MYSQL_STMT *stmt)
{
  my_bool result= 1;
  Protocol_local *p= (Protocol_local *) mysql->thd;
  NET *net= &mysql->net;

  if (p->thd && p->thd->killed != NOT_KILLED)
  {
    if (p->thd->killed < KILL_CONNECTION)
      p->thd->killed= NOT_KILLED;
    else
      return 1;
  }

  p->clear_data_list();
  /* Check that we are calling the client functions in right order */
  if (mysql->status != MYSQL_STATUS_READY)
  {
    set_mysql_error(mysql, CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);
    goto end;
  }

  /* Clear result variables */
  p->thd->clear_error(1);
  mysql->affected_rows= ~(my_ulonglong) 0;
  mysql->field_count= 0;
  net_clear_error(net);

  /* 
     We have to call free_old_query before we start to fill mysql->fields 
     for new query. In the case of embedded server we collect field data
     during query execution (not during data retrieval as it is in remote
     client). So we have to call free_old_query here
  */
  free_old_query(mysql);

  if (header)
  {
    arg= header;
    arg_length= header_length;
  }

  if (p->new_thd)
  {
    THD *thd_orig= current_thd;
    set_current_thd(p->thd);
    p->thd->thread_stack= (void*) &result;      // Big stack
    p->thd->set_time();
    result= execute_server_code(p->thd, (const char *)arg, arg_length);
    p->thd->cleanup_after_query();
    mysql_audit_release(p->thd);
    p->end_statement();
    set_current_thd(thd_orig);
  }