1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1998-2016 Zend Technologies Ltd. (http://www.zend.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 2.00 of the Zend license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.zend.com/license/2_00.txt. |
11 | If you did not receive a copy of the Zend license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@zend.com so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Andi Gutmans <andi@zend.com> |
16 | Zeev Suraski <zeev@zend.com> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #ifndef ZEND_STACK_H
23 #define ZEND_STACK_H
24
25 typedef struct _zend_stack {
26 int top, max;
27 void **elements;
28 } zend_stack;
29
30
31 #define STACK_BLOCK_SIZE 64
32
33 BEGIN_EXTERN_C()
34 ZEND_API int zend_stack_init(zend_stack *stack);
35 ZEND_API int zend_stack_push(zend_stack *stack, const void *element, int size);
36 ZEND_API int zend_stack_top(const zend_stack *stack, void **element);
37 ZEND_API int zend_stack_del_top(zend_stack *stack);
38 ZEND_API int zend_stack_int_top(const zend_stack *stack);
39 ZEND_API int zend_stack_is_empty(const zend_stack *stack);
40 ZEND_API int zend_stack_destroy(zend_stack *stack);
41 ZEND_API void **zend_stack_base(const zend_stack *stack);
42 ZEND_API int zend_stack_count(const zend_stack *stack);
43 ZEND_API void zend_stack_apply(zend_stack *stack, int type, int (*apply_function)(void *element));
44 ZEND_API void zend_stack_apply_with_argument(zend_stack *stack, int type, int (*apply_function)(void *element, void *arg), void *arg);
45 END_EXTERN_C()
46
47 #define ZEND_STACK_APPLY_TOPDOWN 1
48 #define ZEND_STACK_APPLY_BOTTOMUP 2
49
50 #endif /* ZEND_STACK_H */
51
52 /*
53 * Local variables:
54 * tab-width: 4
55 * c-basic-offset: 4
56 * indent-tabs-mode: t
57 * End:
58 */