mirror of
https://github.com/php/php-src.git
synced 2024-11-28 12:26:37 +08:00
59 lines
2.4 KiB
C
59 lines
2.4 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| Zend Engine |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1998-2001 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> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
|
|
#ifndef ZEND_PTR_STACK_H
|
|
#define ZEND_PTR_STACK_H
|
|
|
|
typedef struct _zend_ptr_stack {
|
|
int top, max;
|
|
void **elements;
|
|
void **top_element;
|
|
} zend_ptr_stack;
|
|
|
|
|
|
#define PTR_STACK_BLOCK_SIZE 64
|
|
|
|
ZEND_API void zend_ptr_stack_init(zend_ptr_stack *stack);
|
|
ZEND_API void zend_ptr_stack_n_push(zend_ptr_stack *stack, int count, ...);
|
|
ZEND_API void zend_ptr_stack_n_pop(zend_ptr_stack *stack, int count, ...);
|
|
ZEND_API void zend_ptr_stack_destroy(zend_ptr_stack *stack);
|
|
ZEND_API void zend_ptr_stack_apply(zend_ptr_stack *stack, void (*func)(void *));
|
|
ZEND_API void zend_ptr_stack_clean(zend_ptr_stack *stack, void (*func)(void *), zend_bool free_elements);
|
|
ZEND_API int zend_ptr_stack_num_elements(zend_ptr_stack *stack);
|
|
|
|
static 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;
|
|
}
|
|
|
|
static inline void *zend_ptr_stack_pop(zend_ptr_stack *stack)
|
|
{
|
|
stack->top--;
|
|
return *(--stack->top_element);
|
|
}
|
|
|
|
|
|
#endif /* ZEND_PTR_STACK_H */
|