list.h

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/*
 * Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
 *               2016 TriaGnoSys GmbH
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#ifndef LIST_H
#define LIST_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct list_node {
    struct list_node *next;     
} list_node_t;
 
static inline void list_add(list_node_t *node, list_node_t *new_node)
{
    new_node->next = node->next;
    node->next = new_node;
}
 
static inline list_node_t *list_remove_head(list_node_t *list)
{
    list_node_t *head = list->next;
 
    if (head) {
        list->next = head->next;
    }
    return head;
}
 
static inline list_node_t *list_remove(list_node_t *list, list_node_t *node)
{
    while (list->next) {
        if (list->next == node) {
            list->next = node->next;
            return node;
        }
        list = list->next;
    }
    return list->next;
}
 
#ifdef __cplusplus
}
#endif
 
#endif /* LIST_H */