xref: /PHP-7.2/Zend/zend_llist.h (revision 7a7ec01a)
1 /*
2    +----------------------------------------------------------------------+
3    | Zend Engine                                                          |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1998-2018 Zend Technologies Ltd. (http://www.zend.com) |
6    +----------------------------------------------------------------------+
7    | This source file is subject to version 2.00 of the Zend license,     |
8    | that is bundled with this package in the file LICENSE, and is        |
9    | available through the world-wide-web at the following url:           |
10    | http://www.zend.com/license/2_00.txt.                                |
11    | If you did not receive a copy of the Zend license and are unable to  |
12    | obtain it through the world-wide-web, please send a note to          |
13    | license@zend.com so we can mail you a copy immediately.              |
14    +----------------------------------------------------------------------+
15    | Authors: Andi Gutmans <andi@zend.com>                                |
16    |          Zeev Suraski <zeev@zend.com>                                |
17    +----------------------------------------------------------------------+
18 */
19 
20 /* $Id$ */
21 
22 #ifndef ZEND_LLIST_H
23 #define ZEND_LLIST_H
24 
25 typedef struct _zend_llist_element {
26 	struct _zend_llist_element *next;
27 	struct _zend_llist_element *prev;
28 	char data[1]; /* Needs to always be last in the struct */
29 } zend_llist_element;
30 
31 typedef void (*llist_dtor_func_t)(void *);
32 typedef int (*llist_compare_func_t)(const zend_llist_element **, const zend_llist_element **);
33 typedef void (*llist_apply_with_args_func_t)(void *data, int num_args, va_list args);
34 typedef void (*llist_apply_with_arg_func_t)(void *data, void *arg);
35 typedef void (*llist_apply_func_t)(void *);
36 
37 typedef struct _zend_llist {
38 	zend_llist_element *head;
39 	zend_llist_element *tail;
40 	size_t count;
41 	size_t size;
42 	llist_dtor_func_t dtor;
43 	unsigned char persistent;
44 	zend_llist_element *traverse_ptr;
45 } zend_llist;
46 
47 typedef zend_llist_element* zend_llist_position;
48 
49 BEGIN_EXTERN_C()
50 ZEND_API void zend_llist_init(zend_llist *l, size_t size, llist_dtor_func_t dtor, unsigned char persistent);
51 ZEND_API void zend_llist_add_element(zend_llist *l, void *element);
52 ZEND_API void zend_llist_prepend_element(zend_llist *l, void *element);
53 ZEND_API void zend_llist_del_element(zend_llist *l, void *element, int (*compare)(void *element1, void *element2));
54 ZEND_API void zend_llist_destroy(zend_llist *l);
55 ZEND_API void zend_llist_clean(zend_llist *l);
56 ZEND_API void zend_llist_remove_tail(zend_llist *l);
57 ZEND_API void zend_llist_copy(zend_llist *dst, zend_llist *src);
58 ZEND_API void zend_llist_apply(zend_llist *l, llist_apply_func_t func);
59 ZEND_API void zend_llist_apply_with_del(zend_llist *l, int (*func)(void *data));
60 ZEND_API void zend_llist_apply_with_argument(zend_llist *l, llist_apply_with_arg_func_t func, void *arg);
61 ZEND_API void zend_llist_apply_with_arguments(zend_llist *l, llist_apply_with_args_func_t func, int num_args, ...);
62 ZEND_API size_t zend_llist_count(zend_llist *l);
63 ZEND_API void zend_llist_sort(zend_llist *l, llist_compare_func_t comp_func);
64 
65 /* traversal */
66 ZEND_API void *zend_llist_get_first_ex(zend_llist *l, zend_llist_position *pos);
67 ZEND_API void *zend_llist_get_last_ex(zend_llist *l, zend_llist_position *pos);
68 ZEND_API void *zend_llist_get_next_ex(zend_llist *l, zend_llist_position *pos);
69 ZEND_API void *zend_llist_get_prev_ex(zend_llist *l, zend_llist_position *pos);
70 
71 #define zend_llist_get_first(l) zend_llist_get_first_ex(l, NULL)
72 #define zend_llist_get_last(l) zend_llist_get_last_ex(l, NULL)
73 #define zend_llist_get_next(l) zend_llist_get_next_ex(l, NULL)
74 #define zend_llist_get_prev(l) zend_llist_get_prev_ex(l, NULL)
75 
76 END_EXTERN_C()
77 
78 #endif /* ZEND_LLIST_H */
79 
80 /*
81  * Local variables:
82  * tab-width: 4
83  * c-basic-offset: 4
84  * indent-tabs-mode: t
85  * End:
86  * vim600: sw=4 ts=4 fdm=marker
87  * vim<600: sw=4 ts=4
88  */
89