1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2010 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "zend.h"
#include "zend_ptr_stack.h"
#ifdef HAVE_STDARG_H
# include <stdarg.h>
#endif
ZEND_API void zend_ptr_stack_init_ex(zend_ptr_stack *stack, zend_bool persistent) /* {{{ */
{
stack->top_element = stack->elements = (void **) pemalloc(sizeof(void *)*PTR_STACK_BLOCK_SIZE, persistent);
stack->max = PTR_STACK_BLOCK_SIZE;
stack->top = 0;
stack->persistent = persistent;
}
/* }}} */
ZEND_API void zend_ptr_stack_init(zend_ptr_stack *stack) /* {{{ */
{
zend_ptr_stack_init_ex(stack, 0);
}
/* }}} */
ZEND_API void zend_ptr_stack_n_push(zend_ptr_stack *stack, int count, ...) /* {{{ */
{
va_list ptr;
void *elem;
ZEND_PTR_STACK_RESIZE_IF_NEEDED(stack, count)
va_start(ptr, count);
while (count>0) {
elem = va_arg(ptr, void *);
stack->top++;
*(stack->top_element++) = elem;
count--;
}
va_end(ptr);
}
/* }}} */
ZEND_API void zend_ptr_stack_n_pop(zend_ptr_stack *stack, int count, ...) /* {{{ */
{
va_list ptr;
void **elem;
va_start(ptr, count);
while (count>0) {
elem = va_arg(ptr, void **);
*elem = *(--stack->top_element);
stack->top--;
count--;
}
va_end(ptr);
}
/* }}} */
ZEND_API void zend_ptr_stack_destroy(zend_ptr_stack *stack) /* {{{ */
{
if (stack->elements) {
pefree(stack->elements, stack->persistent);
}
}
/* }}} */
ZEND_API void zend_ptr_stack_apply(zend_ptr_stack *stack, void (*func)(void *)) /* {{{ */
{
int i = stack->top;
while (--i >= 0) {
func(stack->elements[i]);
}
}
/* }}} */
ZEND_API void zend_ptr_stack_clean(zend_ptr_stack *stack, void (*func)(void *), zend_bool free_elements) /* {{{ */
{
zend_ptr_stack_apply(stack, func);
if (free_elements) {
int i = stack->top;
while (--i >= 0) {
pefree(stack->elements[i], stack->persistent);
}
}
stack->top = 0;
stack->top_element = stack->elements;
}
/* }}} */
ZEND_API int zend_ptr_stack_num_elements(zend_ptr_stack *stack) /* {{{ */
{
return stack->top;
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
|
