Zend Library

1 files changed, 37 insertions, 0 deletions

diff --git a/Zend/zend_ptr_stack.h b/Zend/zend_ptr_stack.h
new file mode 100644
index 0000000000..15f59de293
--- /dev/null
+++ b/Zend/zend_ptr_stack.h
@@ -0,0 +1,37 @@
+/*
+   +----------------------------------------------------------------------+
+   | Zend Engine                                                          |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1998, 1999 Andi Gutmans, Zeev Suraski                  |
+   +----------------------------------------------------------------------+
+   | This source file is subject to the Zend license, that is bundled     |
+   | with this package in the file LICENSE.  If you did not receive a     |
+   | copy of the Zend license, please mail us at zend@zend.com so we can  |
+   | send 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 {
+	short top, max;
+	void **elements;
+	void **top_element;
+} zend_ptr_stack;
+
+
+#define STACK_BLOCK_SIZE 64
+
+ZEND_API void zend_ptr_stack_init(zend_ptr_stack *stack);
+ZEND_API void zend_ptr_stack_push(zend_ptr_stack *stack, void *ptr);
+ZEND_API void *zend_ptr_stack_pop(zend_ptr_stack *stack);
+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 *));
+
+#endif /* _ZEND_PTR_STACK_H */