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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: clib/stack.h $ */
/* */
/* OpenPOWER FFS Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2014,2015 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/*!
* @file stack.h
* @brief stack container
* @details
* A stack is a data structure (container) used for collecting a sequence of elements.
* stack allow for efficient insertion, removal and retreival of elements.
*
* @details For example,
* @code
* #include <clib/stack.h>
* #include <clib/stack_iter.h>
*
* int main(const int argc, const char * argv[]) {
* typedef struct {
* stack_node_t node;
* int i;
* float f;
* } data_t;
*
* slab_t s;
* slab_init(&s, sizeof(data_t), 0);
*
* stack_t a;
* stack_init(&a);
*
* int i;
* for (i=0; i<10; i++) {
* data_t * d = (data_t *)slab_alloc(&s);
*
* d->i = i;
* d->f = (float)i;
*
* stack_add_tail(&l, &d->node);
* }
*
* data_t * d;
* stack_for_each(&l, d, node) {
* printf("i: %d f: %f\n", d->i, d->f);
* }
*
* stack_dump(&l, stdout);
* slab_delete(&s);
*
* return 0;
* }
* @endcode
* @author Shaun Wetzstein <shaun@us.ibm.com>
* @date 2010-2011
*/
#ifndef __STACK_H__
#define __STACK_H__
#include "list.h"
#include "type.h"
typedef list stack;
typedef list_node stack_node;
#define stack_init(s) list_init((list *)(s))
#define stack_push(s,n) list_add_tail((list *)(s),(n))
#define stack_pop(s) list_remove_tail((list *)(s))
#define stack_empty(s) list_empty((list *)(s))
#define stack_dump(s,o) list_dump((list *)(s),(o))
#define stack_entry(n, t, m) list_entry((n),(t),(m))
#define stack_top(s) list_head((list *)(s))
#define stack_bottom(s) list_tail((list *)(s))
#define stack_for_each(s, i, m) \
for (i = container_of_var(s->node.next, i, m); \
&i->m != &(s)->node; \
i = container_of_var(i->m.next, i, m))
#define stack_for_each_safe(s, i, n, m) \
for (i = container_of_var((s)->node.next, i, m), \
n = container_of_var(i->m.next, i, m); \
&i->m != &(s)->node; \
i = n, n = container_of_var(i->m.next, i, m))
#endif /* __STACK_H__ */
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