MySQL  8.0.17
Source Code Documentation
my_list.h
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1 /* Copyright (c) 2000, 2017, 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, version 2.0,
5  as published by the Free Software Foundation.
6 
7  This program is also distributed with certain software (including
8  but not limited to OpenSSL) that is licensed under separate terms,
9  as designated in a particular file or component or in included license
10  documentation. The authors of MySQL hereby grant you an additional
11  permission to link the program and your derivative works with the
12  separately licensed software that they have included with MySQL.
13 
14  Without limiting anything contained in the foregoing, this file,
15  which is part of C Driver for MySQL (Connector/C), is also subject to the
16  Universal FOSS Exception, version 1.0, a copy of which can be found at
17  http://oss.oracle.com/licenses/universal-foss-exception.
18 
19  This program is distributed in the hope that it will be useful,
20  but WITHOUT ANY WARRANTY; without even the implied warranty of
21  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22  GNU General Public License, version 2.0, for more details.
23 
24  You should have received a copy of the GNU General Public License
25  along with this program; if not, write to the Free Software
26  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
27 
28 #ifndef _list_h_
29 #define _list_h_
30 
31 /**
32  @file include/my_list.h
33 */
34 
35 /*
36  NOTE: This file should really include mysql/service_mysql_alloc.h
37  (due to the my_free() call in list_pop), but that is not acceptable
38  in client code, so it has been kept out.
39 */
40 
41 typedef struct LIST {
42 #if defined(__cplusplus) && __cplusplus >= 201103L
43  struct LIST *prev{nullptr}, *next{nullptr};
44  void *data{nullptr};
45 #else
46  struct LIST *prev, *next;
47  void *data;
48 #endif
49 } LIST;
50 
51 typedef int (*list_walk_action)(void *, void *);
52 
53 extern LIST *list_add(LIST *root, LIST *element);
54 extern LIST *list_delete(LIST *root, LIST *element);
55 extern LIST *list_cons(void *data, LIST *root);
56 extern LIST *list_reverse(LIST *root);
57 extern void list_free(LIST *root, unsigned int free_data);
58 extern unsigned int list_length(LIST *);
59 extern int list_walk(LIST *, list_walk_action action, unsigned char *argument);
60 
61 #define list_rest(a) ((a)->next)
62 #define list_push(a, b) (a) = list_cons((b), (a))
63 #define list_pop(A) \
64  { \
65  LIST *old = (A); \
66  (A) = list_delete(old, old); \
67  my_free(old); \
68  }
69 
70 #endif
int(* list_walk_action)(void *, void *)
Definition: my_list.h:51
struct LIST LIST
unsigned int root
Definition: dbug_analyze.cc:514
struct LIST * next
Definition: my_list.h:46
void * data
Definition: my_list.h:47
void list_free(LIST *root, unsigned int free_data)
Definition: list.cc:67
unsigned int list_length(LIST *)
Definition: list.cc:98
LIST * list_reverse(LIST *root)
Definition: list.cc:85
LIST * list_delete(LIST *root, LIST *element)
Definition: list.cc:58
int list_walk(LIST *, list_walk_action action, unsigned char *argument)
Definition: list.cc:105
Definition: my_list.h:41
LIST * list_cons(void *data, LIST *root)
Definition: list.cc:77
LIST * list_add(LIST *root, LIST *element)
Definition: list.cc:44
struct LIST * prev
Definition: my_list.h:46