Zephyr API Documentation
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list_gen.h
Go to the documentation of this file.
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_SYS_LIST_GEN_H_
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#define ZEPHYR_INCLUDE_SYS_LIST_GEN_H_
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#include <stddef.h>
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#include <
stdbool.h
>
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#include <
zephyr/sys/util.h
>
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#define Z_GENLIST_FOR_EACH_NODE(__lname, __l, __sn) \
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for (__sn = sys_ ## __lname ## _peek_head(__l); __sn != NULL; \
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__sn = sys_ ## __lname ## _peek_next(__sn))
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#define Z_GENLIST_ITERATE_FROM_NODE(__lname, __l, __sn) \
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for (__sn = __sn ? sys_ ## __lname ## _peek_next_no_check(__sn) \
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: sys_ ## __lname ## _peek_head(__l); \
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__sn != NULL; \
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__sn = sys_ ## __lname ## _peek_next(__sn))
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#define Z_GENLIST_FOR_EACH_NODE_SAFE(__lname, __l, __sn, __sns) \
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for (__sn = sys_ ## __lname ## _peek_head(__l), \
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__sns = sys_ ## __lname ## _peek_next(__sn); \
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__sn != NULL ; __sn = __sns, \
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__sns = sys_ ## __lname ## _peek_next(__sn))
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#define Z_GENLIST_CONTAINER(__ln, __cn, __n) \
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((__ln) ? CONTAINER_OF((__ln), __typeof__(*(__cn)), __n) : NULL)
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#define Z_GENLIST_PEEK_HEAD_CONTAINER(__lname, __l, __cn, __n) \
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Z_GENLIST_CONTAINER(sys_ ## __lname ## _peek_head(__l), __cn, __n)
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#define Z_GENLIST_PEEK_TAIL_CONTAINER(__lname, __l, __cn, __n) \
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Z_GENLIST_CONTAINER(sys_ ## __lname ## _peek_tail(__l), __cn, __n)
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#define Z_GENLIST_PEEK_NEXT_CONTAINER(__lname, __cn, __n) \
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((__cn) ? Z_GENLIST_CONTAINER( \
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sys_ ## __lname ## _peek_next(&((__cn)->__n)), \
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__cn, __n) : NULL)
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#define Z_GENLIST_FOR_EACH_CONTAINER(__lname, __l, __cn, __n) \
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for (__cn = Z_GENLIST_PEEK_HEAD_CONTAINER(__lname, __l, __cn, \
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__n); \
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__cn != NULL; \
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__cn = Z_GENLIST_PEEK_NEXT_CONTAINER(__lname, __cn, __n))
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#define Z_GENLIST_FOR_EACH_CONTAINER_SAFE(__lname, __l, __cn, __cns, __n) \
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for (__cn = Z_GENLIST_PEEK_HEAD_CONTAINER(__lname, __l, __cn, __n), \
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__cns = Z_GENLIST_PEEK_NEXT_CONTAINER(__lname, __cn, __n); \
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__cn != NULL; __cn = __cns, \
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__cns = Z_GENLIST_PEEK_NEXT_CONTAINER(__lname, __cn, __n))
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#define Z_GENLIST_IS_EMPTY(__lname) \
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static inline bool \
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sys_ ## __lname ## _is_empty(sys_ ## __lname ## _t *list) \
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{ \
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return (sys_ ## __lname ## _peek_head(list) == NULL); \
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}
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#define Z_GENLIST_PEEK_NEXT_NO_CHECK(__lname, __nname) \
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static inline sys_ ## __nname ## _t * \
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sys_ ## __lname ## _peek_next_no_check(sys_ ## __nname ## _t *node) \
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{ \
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return z_ ## __nname ## _next_peek(node); \
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}
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#define Z_GENLIST_PEEK_NEXT(__lname, __nname) \
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static inline sys_ ## __nname ## _t * \
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sys_ ## __lname ## _peek_next(sys_ ## __nname ## _t *node) \
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{ \
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return (node != NULL) ? \
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sys_ ## __lname ## _peek_next_no_check(node) : \
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NULL; \
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}
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#define Z_GENLIST_PREPEND(__lname, __nname) \
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static inline void \
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sys_ ## __lname ## _prepend(sys_ ## __lname ## _t *list, \
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sys_ ## __nname ## _t *node) \
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{ \
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z_ ## __nname ## _next_set(node, \
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sys_ ## __lname ## _peek_head(list)); \
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z_ ## __lname ## _head_set(list, node); \
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\
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if (sys_ ## __lname ## _peek_tail(list) == NULL) { \
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z_ ## __lname ## _tail_set(list, \
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sys_ ## __lname ## _peek_head(list)); \
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} \
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}
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#define Z_GENLIST_APPEND(__lname, __nname) \
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static inline void \
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sys_ ## __lname ## _append(sys_ ## __lname ## _t *list, \
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sys_ ## __nname ## _t *node) \
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{ \
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z_ ## __nname ## _next_set(node, NULL); \
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\
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if (sys_ ## __lname ## _peek_tail(list) == NULL) { \
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z_ ## __lname ## _tail_set(list, node); \
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z_ ## __lname ## _head_set(list, node); \
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} else { \
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z_ ## __nname ## _next_set( \
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sys_ ## __lname ## _peek_tail(list), \
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node); \
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z_ ## __lname ## _tail_set(list, node); \
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} \
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}
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#define Z_GENLIST_APPEND_LIST(__lname, __nname) \
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static inline void \
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sys_ ## __lname ## _append_list(sys_ ## __lname ## _t *list, \
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void *head, void *tail) \
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{ \
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if (head != NULL && tail != NULL) { \
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if (sys_ ## __lname ## _peek_tail(list) == NULL) { \
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z_ ## __lname ## _head_set(list, \
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(sys_ ## __nname ## _t *)head); \
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} else { \
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z_ ## __nname ## _next_set( \
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sys_ ## __lname ## _peek_tail(list), \
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(sys_ ## __nname ## _t *)head); \
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} \
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z_ ## __lname ## _tail_set(list, \
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(sys_ ## __nname ## _t *)tail); \
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} \
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}
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#define Z_GENLIST_MERGE_LIST(__lname, __nname) \
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static inline void \
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sys_ ## __lname ## _merge_ ## __lname ( \
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sys_ ## __lname ## _t *list, \
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sys_ ## __lname ## _t *list_to_append) \
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{ \
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sys_ ## __nname ## _t *head, *tail; \
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head = sys_ ## __lname ## _peek_head(list_to_append); \
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tail = sys_ ## __lname ## _peek_tail(list_to_append); \
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sys_ ## __lname ## _append_list(list, head, tail); \
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sys_ ## __lname ## _init(list_to_append); \
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}
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#define Z_GENLIST_INSERT(__lname, __nname) \
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static inline void \
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sys_ ## __lname ## _insert(sys_ ## __lname ## _t *list, \
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sys_ ## __nname ## _t *prev, \
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sys_ ## __nname ## _t *node) \
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{ \
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if (prev == NULL) { \
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sys_ ## __lname ## _prepend(list, node); \
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} else if (z_ ## __nname ## _next_peek(prev) == NULL) { \
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sys_ ## __lname ## _append(list, node); \
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} else { \
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z_ ## __nname ## _next_set(node, \
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z_ ## __nname ## _next_peek(prev)); \
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z_ ## __nname ## _next_set(prev, node); \
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} \
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}
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#define Z_GENLIST_GET_NOT_EMPTY(__lname, __nname) \
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static inline sys_ ## __nname ## _t * \
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sys_ ## __lname ## _get_not_empty(sys_ ## __lname ## _t *list) \
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{ \
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sys_ ## __nname ## _t *node = \
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sys_ ## __lname ## _peek_head(list); \
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\
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z_ ## __lname ## _head_set(list, \
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z_ ## __nname ## _next_peek(node)); \
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if (sys_ ## __lname ## _peek_tail(list) == node) { \
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z_ ## __lname ## _tail_set(list, \
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sys_ ## __lname ## _peek_head(list)); \
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} \
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\
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return node; \
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}
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#define Z_GENLIST_GET(__lname, __nname) \
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static inline sys_ ## __nname ## _t * \
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sys_ ## __lname ## _get(sys_ ## __lname ## _t *list) \
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{ \
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return sys_ ## __lname ## _is_empty(list) ? NULL : \
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sys_ ## __lname ## _get_not_empty(list); \
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}
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#define Z_GENLIST_REMOVE(__lname, __nname) \
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static inline void \
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sys_ ## __lname ## _remove(sys_ ## __lname ## _t *list, \
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sys_ ## __nname ## _t *prev_node, \
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sys_ ## __nname ## _t *node) \
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{ \
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if (prev_node == NULL) { \
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z_ ## __lname ## _head_set(list, \
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z_ ## __nname ## _next_peek(node)); \
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\
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/* Was node also the tail? */
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if (sys_ ## __lname ## _peek_tail(list) == node) { \
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z_ ## __lname ## _tail_set(list, \
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sys_ ## __lname ## _peek_head(list)); \
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} \
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} else { \
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z_ ## __nname ## _next_set(prev_node, \
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z_ ## __nname ## _next_peek(node)); \
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\
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/* Was node the tail? */
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if (sys_ ## __lname ## _peek_tail(list) == node) { \
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z_ ## __lname ## _tail_set(list, \
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prev_node); \
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} \
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} \
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\
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z_ ## __nname ## _next_set(node, NULL); \
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}
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#define Z_GENLIST_FIND_AND_REMOVE(__lname, __nname) \
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static inline bool \
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sys_ ## __lname ## _find_and_remove(sys_ ## __lname ## _t *list, \
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sys_ ## __nname ## _t *node) \
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{ \
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sys_ ## __nname ## _t *prev = NULL; \
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sys_ ## __nname ## _t *test; \
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\
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Z_GENLIST_FOR_EACH_NODE(__lname, list, test) { \
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if (test == node) { \
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sys_ ## __lname ## _remove(list, prev, \
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node); \
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return true; \
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} \
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\
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prev = test; \
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} \
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\
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return false; \
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}
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#define Z_GENLIST_FIND(__lname, __nname) \
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static inline bool sys_##__lname##_find( \
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sys_##__lname##_t *list, sys_##__nname##_t *node, sys_##__nname##_t **prev) \
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{ \
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sys_##__nname##_t *current = NULL; \
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sys_##__nname##_t *previous = NULL; \
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\
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Z_GENLIST_FOR_EACH_NODE(__lname, list, current) { \
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if (current == node) { \
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if (prev != NULL) { \
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*prev = previous; \
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} \
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return true; \
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} \
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\
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previous = current; \
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} \
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\
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if (prev != NULL) { \
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*prev = previous; \
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} \
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\
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return false; \
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}
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#define Z_GENLIST_LEN(__lname, __nname) \
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static inline size_t sys_##__lname##_len(sys_##__lname##_t * list) \
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{ \
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size_t len = 0; \
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static sys_##__nname##_t * node; \
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Z_GENLIST_FOR_EACH_NODE(__lname, list, node) { \
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len++; \
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} \
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return len; \
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}
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#endif
/* ZEPHYR_INCLUDE_SYS_LIST_GEN_H_ */
stdbool.h
util.h
Misc utilities.
zephyr
sys
list_gen.h
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