1 /* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; version 2 of the License.
6
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 GNU General Public License for more details.
11
12 You should have received a copy of the GNU General Public License
13 along with this program; if not, write to the Free Software
14 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
15
16
17 #ifdef USE_PRAGMA_IMPLEMENTATION
18 #pragma implementation // gcc: Class implementation
19 #endif
20
21 #include "mariadb.h"
22 #include "sql_list.h"
23
24 list_node end_of_list;
25
free_list(I_List<i_string_pair> * list)26 void free_list(I_List <i_string_pair> *list)
27 {
28 i_string_pair *tmp;
29 while ((tmp= list->get()))
30 delete tmp;
31 }
32
33
free_list(I_List<i_string> * list)34 void free_list(I_List <i_string> *list)
35 {
36 i_string *tmp;
37 while ((tmp= list->get()))
38 delete tmp;
39 }
40
41
copy(const base_list * rhs,MEM_ROOT * mem_root)42 bool base_list::copy(const base_list *rhs, MEM_ROOT *mem_root)
43 {
44 bool error= 0;
45 if (rhs->elements)
46 {
47 /*
48 It's okay to allocate an array of nodes at once: we never
49 call a destructor for list_node objects anyway.
50 */
51 if ((first= (list_node*) alloc_root(mem_root,
52 sizeof(list_node) * rhs->elements)))
53 {
54 elements= rhs->elements;
55 list_node *dst= first;
56 list_node *src= rhs->first;
57 for (; dst < first + elements - 1; dst++, src= src->next)
58 {
59 dst->info= src->info;
60 dst->next= dst + 1;
61 }
62 /* Copy the last node */
63 dst->info= src->info;
64 dst->next= &end_of_list;
65 /* Setup 'last' member */
66 last= &dst->next;
67 return 0;
68 }
69 error= 1;
70 }
71 elements= 0;
72 first= &end_of_list;
73 last= &first;
74 return error;
75 }
76