8b38fe018dd66b5781286643d7f057cb64bd3bf1
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 *******************************************************************************/
29 # include "php_config.h"
41 #define PLIST_ELE(l, i) (((char *)(l)->list) + (l)->size * (i))
42 #define PLIST_CPY(list, dest, src) do { \
43 if (list->size == sizeof(void *)) { \
44 *(void **)(dest) = *(void **)(src); \
46 memcpy(dest, src, list->size); \
49 #define PLIST_CPY_R(list, dest, src, num) memcpy((dest), (src), (num) * (list)->size)
50 /* !!! adjust list->count prior reduction */
51 #define PLIST_MOV_REDUCE(l, i) PLIST_MOV_REDUCE_EX(l, i, 1)
52 #define PLIST_MOV_REDUCE_EX(l, i, n) memmove(PLIST_ELE(l, i), PLIST_ELE(l, (i) + (n)), (l)->size * ((l)->count - (i)))
53 /* !!! adjust list->count after expansion */
54 #define PLIST_MOV_EXPAND(l, i) PLIST_MOV_EXPAND_EX(l, i, 1)
55 #define PLIST_MOV_EXPAND_EX(l, i, n) memmove(PLIST_ELE(l, (i) + (n)), PLIST_ELE(l, i), (l)->size * ((l)->count - (i)))
57 struct psi_plist
*psi_plist_init(void (*dtor
)(void *)) {
58 return psi_plist_init_ex(0, dtor
);
60 struct psi_plist
*psi_plist_init_ex(size_t size
, void (*dtor
)(void *)) {
61 struct psi_plist
*list
;
67 list
= pecalloc(1, sizeof(*list
) + size
, 1);
74 void psi_plist_clean(struct psi_plist
*list
) {
78 if (list
->dtor
) for (i
= 0; i
< list
->count
; ++i
) {
79 list
->dtor(PLIST_ELE(list
, i
));
85 void psi_plist_free(struct psi_plist
*list
) {
87 psi_plist_clean(list
);
92 struct psi_plist
*psi_plist_copy(struct psi_plist
*list
, void (*ctor
)(void *))
95 struct psi_plist
*copy
= pecalloc(1, sizeof(*list
) + list
->size
+ list
->count
* list
->size
, 1);
99 memcpy(copy
->list
, list
->list
, list
->size
* list
->count
);
102 for (i
= 0; i
< list
->count
; ++i
) {
103 void *ptr
= PLIST_ELE(copy
, i
);
110 size_t psi_plist_count(struct psi_plist
*list
) {
111 return list
? list
->count
: 0;
114 void **psi_plist_eles(struct psi_plist
*list
) {
115 return list
? list
->list
: NULL
;
118 struct psi_plist
*psi_plist_add(struct psi_plist
*list
, void *ptr
) {
119 if (list
&& list
->count
) {
120 list
= safe_perealloc(list
, list
->count
+ 1, list
->size
, sizeof(*list
), 1);
123 PLIST_CPY(list
, PLIST_ELE(list
, list
->count
++), ptr
);
128 struct psi_plist
*psi_plist_add_r(struct psi_plist
*list
, size_t num_eles
, void **eles
) {
130 list
= safe_perealloc(list
, list
->count
+ num_eles
+ 1, list
->size
, sizeof(*list
), 1);
133 memcpy(PLIST_ELE(list
, list
->count
), eles
, num_eles
* list
->size
);
134 list
->count
+= num_eles
;
139 bool psi_plist_get(struct psi_plist
*list
, size_t index
, void *ptr
) {
140 if (list
&& list
->count
> index
) {
141 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, index
));
147 bool psi_plist_unset(struct psi_plist
*list
, size_t index
) {
148 if (list
&& list
->count
> index
) {
149 memset(PLIST_ELE(list
, index
), 0, list
->size
);
155 bool psi_plist_set(struct psi_plist
*list
, size_t index
, void *ptr
) {
156 if (list
&& list
->count
> index
) {
157 PLIST_CPY(list
, PLIST_ELE(list
, index
), ptr
);
163 bool psi_plist_del(struct psi_plist
*list
, size_t index
, void *ptr
) {
164 if (list
&& list
->count
> index
) {
166 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, index
));
168 if (--list
->count
> index
) {
169 PLIST_MOV_REDUCE(list
, index
);
176 bool psi_plist_del_r(struct psi_plist
*list
, size_t offset_start
, size_t num_eles
, void **eles
) {
178 size_t offset_end
= offset_start
+ num_eles
- 1;
180 if (list
->count
<= offset_end
) {
181 offset_end
= list
->count
- 1;
183 if (offset_end
>= offset_start
) {
184 num_eles
= 1 + offset_end
- offset_start
;
187 memcpy(eles
, PLIST_ELE(list
, offset_start
), num_eles
* list
->size
);
189 assert(list
->count
>= num_eles
);
190 if ((list
->count
-= num_eles
)) {
191 PLIST_MOV_REDUCE_EX(list
, offset_start
, num_eles
);
199 struct psi_plist
*psi_plist_ins(struct psi_plist
*list
, size_t index
, void *ptr
) {
203 new_count
= MAX(list
->count
+ 1, index
);
205 list
= safe_perealloc(list
, new_count
+ 1, list
->size
, sizeof(*list
), 1);
208 PLIST_MOV_EXPAND(list
, index
);
209 PLIST_CPY(list
, PLIST_ELE(list
, index
), ptr
);
210 list
->count
= new_count
;
216 struct psi_plist
*psi_plist_ins_r(struct psi_plist
*list
, size_t offset_start
, size_t num_eles
, void **eles
) {
220 new_count
= MAX(offset_start
, list
->count
) + num_eles
;
222 list
= safe_perealloc(list
, new_count
+ 1, list
->size
, sizeof(*list
), 1);
225 PLIST_MOV_EXPAND_EX(list
, offset_start
, num_eles
);
226 PLIST_CPY_R(list
, PLIST_ELE(list
, offset_start
), eles
, num_eles
);
227 list
->count
= new_count
;
233 bool psi_plist_shift(struct psi_plist
*list
, void *ptr
) {
234 if (list
&& list
->count
) {
236 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, 0));
239 PLIST_MOV_REDUCE(list
, 0);
246 bool psi_plist_pop(struct psi_plist
*list
, void *ptr
) {
247 if (list
&& list
->count
) {
250 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, list
->count
));
257 bool psi_plist_top(struct psi_plist
*list
, void *ptr
) {
258 if (list
&& list
->count
) {
259 PLIST_CPY(list
, ptr
, PLIST_ELE(list
, list
->count
- 1));
266 static void swp_ptr(void *a
, void *b
) {
267 void **_a
= a
, **_b
= b
, *_c
;
274 void psi_plist_sort(struct psi_plist
*list
, compare_func_t cmp
, swap_func_t swp
) {
275 if (!swp
&& list
->size
== sizeof(void *)) {
279 zend_insert_sort((void *) list
->list
, list
->count
, list
->size
, cmp
, swp
);