Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tag: php-4.0RC2
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 115 lines (94 sloc) 3.241 kb
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
/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2000 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 0.92 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.zend.com/license/0_92.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> |
+----------------------------------------------------------------------+
*/


#include "zend.h"
#include "zend_ptr_stack.h"
#ifdef HAVE_STDARG_H
# include <stdarg.h>
#endif

ZEND_API void zend_ptr_stack_init(zend_ptr_stack *stack)
{
stack->top_element = stack->elements = (void **) emalloc(sizeof(void *)*PTR_STACK_BLOCK_SIZE);
stack->max = PTR_STACK_BLOCK_SIZE;
stack->top = 0;
}


ZEND_API inline void zend_ptr_stack_push(zend_ptr_stack *stack, void *ptr)
{
if (stack->top >= stack->max) { /* we need to allocate more memory */
stack->elements = (void **) erealloc(stack->elements, (sizeof(void *) * (stack->max *= 2 )));
stack->top_element = stack->elements+stack->top;
}
stack->top++;
*(stack->top_element++) = ptr;
}

ZEND_API void zend_ptr_stack_n_push(zend_ptr_stack *stack, int count, ...)
{
va_list ptr;
void *elem;

if (stack->top+count > stack->max) { /* we need to allocate more memory */
stack->max *= 2;
stack->max += count;
stack->elements = (void **) erealloc(stack->elements, (sizeof(void *) * (stack->max)));
stack->top_element = stack->elements+stack->top;
}
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 inline void *zend_ptr_stack_pop(zend_ptr_stack *stack)
{
stack->top--;
return *(--stack->top_element);
}


ZEND_API void zend_ptr_stack_destroy(zend_ptr_stack *stack)
{
if (stack->elements) {
efree(stack->elements);
}
}


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_ptr_stack_apply(stack, func);
stack->top = 0;
stack->top_element = stack->elements;
}


Something went wrong with that request. Please try again.