25f6676ca9a2c110f6bb5a0800f2f59c81901d69
1 /*******************************************************************************
2 Copyright (c) 2016, Michael Wallner <mike@php.net>.
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
8 * Redistributions of source code must retain the above copyright notice,
9 this list of conditions and the following disclaimer.
10 * Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
12 documentation and/or other materials provided with the distribution.
14 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
18 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *******************************************************************************/
26 #include "php_psi_stdinc.h"
37 #define PLIST_ELE(l, i) (((char *)(l)->list) + (l)->size * (i))
38 #define PLIST_CPY(list, dest, src) do { \
39 if (list->size == sizeof(void *)) { \
40 *(void **)(dest) = *(void **)(src); \
42 memcpy(dest, src, list->size); \
45 /* !!! adjust list->count prior reduction */
46 #define PLIST_MOV_REDUCE(l, i) PLIST_MOV_REDUCE_EX(l, i, 1)
47 #define PLIST_MOV_REDUCE_EX(l, i, n) memmove(PLIST_ELE(l, i), PLIST_ELE(l, (i) + (n)), (l)->size * ((l)->count - (i)))
48 /* !!! adjust list->count after expansion */
49 #define PLIST_MOV_EXPAND(l, i) PLIST_MOV_EXPAND_EX(l, i, 1)
50 #define PLIST_MOV_EXPAND_EX(l, i, n) memmove(PLIST_ELE(l, (i) + (n)), PLIST_ELE(l, i), (l)->size * ((l)->count - (i)))
52 struct psi_plist
*psi_plist_init(void (*dtor
)(void *)) {
53 return psi_plist_init_ex(0, dtor
);
55 struct psi_plist
*psi_plist_init_ex(size_t size
, void (*dtor
)(void *)) {
56 struct psi_plist
*list
;
62 list
= calloc(1, sizeof(*list
) + size
);
69 void psi_plist_clean(struct psi_plist
*list
) {
72 if (list
->dtor
) for (i
= 0; i
< list
->count
; ++i
) {
73 list
->dtor(PLIST_ELE(list
, i
));
78 void psi_plist_free(struct psi_plist
*list
) {
79 psi_plist_clean(list
);
83 struct psi_plist
*psi_plist_copy(struct psi_plist
*list
, void (*ctor
)(void *))
86 struct psi_plist
*copy
= calloc(1, sizeof(*list
) + list
->size
+ list
->count
* list
->size
);
90 memcpy(copy
->list
, list
->list
, list
->size
* list
->count
);
93 for (i
= 0; i
< list
->count
; ++i
) {
94 void *ptr
= PLIST_ELE(copy
, i
);
101 size_t psi_plist_count(struct psi_plist
*list
) {
102 return list
? list
->count
: 0;
105 void **psi_plist_eles(struct psi_plist
*list
) {
106 return list
? list
->list
: NULL
;
109 struct psi_plist
*psi_plist_add(struct psi_plist
*list
, void *ptr
) {
110 if (list
&& list
->count
) {
111 list
= realloc(list
, sizeof(*list
) + list
->size
+ list
->count
* list
->size
);
114 PLIST_CPY(list
, PLIST_ELE(list
, list
->count
++), ptr
);
119 struct psi_plist
*psi_plist_add_r(struct psi_plist
*list
, size_t num_eles
, void **eles
) {
120 if (list
&& list
->count
) {
121 list
= realloc(list
, sizeof(*list
) + list
->size
+ (num_eles
+ list
->count
) * list
->size
);
124 memcpy(PLIST_ELE(list
, list
->count
), eles
, num_eles
* list
->size
);
125 list
->count
+= num_eles
;
130 bool psi_plist_get(struct psi_plist
*list
, size_t index
, void *ptr
) {
131 if (list
&& list
->count
> index
) {
132 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, index
));
138 bool psi_plist_del(struct psi_plist
*list
, size_t index
, void *ptr
) {
139 if (list
&& list
->count
> index
) {
141 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, index
));
143 if (--list
->count
> index
) {
144 PLIST_MOV_REDUCE(list
, index
);
151 bool psi_plist_del_r(struct psi_plist
*list
, size_t offset_start
, size_t num_eles
, void **eles
) {
153 size_t offset_end
= offset_start
+ num_eles
- 1;
155 if (list
->count
<= offset_end
) {
156 offset_end
= list
->count
- 1;
158 if (offset_end
>= offset_start
) {
159 num_eles
= 1 + offset_end
- offset_start
;
162 memcpy(eles
, PLIST_ELE(list
, offset_start
), num_eles
* list
->size
);
164 assert(list
->count
>= num_eles
);
165 if ((list
->count
-= num_eles
)) {
166 PLIST_MOV_REDUCE_EX(list
, offset_start
, num_eles
);
174 struct psi_plist
*psi_plist_ins(struct psi_plist
*list
, size_t index
, void *ptr
) {
178 new_count
= MAX(list
->count
+ 1, index
);
180 list
= realloc(list
, sizeof(*list
) + list
->size
+ new_count
* list
->size
);
183 PLIST_MOV_EXPAND(list
, index
);
184 PLIST_CPY(list
, PLIST_ELE(list
, index
), ptr
);
185 list
->count
= new_count
;
191 struct psi_plist
*psi_plist_ins_r(struct psi_plist
*list
, size_t offset_start
, size_t num_eles
, void **eles
) {
195 new_count
= MAX(offset_start
, list
->count
) + num_eles
;
197 list
= realloc(list
, sizeof(*list
) + list
->size
+ new_count
* list
->size
);
202 PLIST_MOV_EXPAND_EX(list
, offset_start
, num_eles
);
203 for (e
= 0; e
< num_eles
; ++e
) {
204 PLIST_CPY(list
, PLIST_ELE(list
, offset_start
+ e
), &eles
[e
]);
206 list
->count
= new_count
;
212 bool psi_plist_shift(struct psi_plist
*list
, void *ptr
) {
213 if (list
&& list
->count
) {
215 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, 0));
218 PLIST_MOV_REDUCE(list
, 0);
225 bool psi_plist_pop(struct psi_plist
*list
, void *ptr
) {
226 if (list
&& list
->count
) {
229 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, list
->count
));
236 bool psi_plist_top(struct psi_plist
*list
, void *ptr
) {
237 if (list
&& list
->count
) {
238 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, list
->count
- 1));
245 static void swp_ptr(void *a
, void *b
) {
246 void **_a
= a
, **_b
= b
, *_c
;
253 void psi_plist_sort(struct psi_plist
*list
, compare_func_t cmp
, swap_func_t swp
) {
254 if (!swp
&& list
->size
== sizeof(void *)) {
258 zend_insert_sort((void *) list
->list
, list
->count
, list
->size
, cmp
, swp
);