xref: /PHP-5.6/Zend/zend_stack.h (revision 3537e95d)
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  */
59