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+/* void_list.h - the opkg package management system
+
+ Carl D. Worth
+
+ Copyright (C) 2001 University of Southern California
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+*/
+
+#ifndef VOID_LIST_H
+#define VOID_LIST_H
+
+#include "list.h"
+
+typedef struct void_list_elt void_list_elt_t;
+struct void_list_elt
+{
+ struct list_head node;
+ void *data;
+};
+
+typedef struct void_list void_list_t;
+struct void_list
+{
+ struct list_head head;
+};
+
+static inline int void_list_empty(void_list_t *list)
+{
+ return list_empty(&list->head);
+}
+
+void void_list_elt_init(void_list_elt_t *elt, void *data);
+void void_list_elt_deinit(void_list_elt_t *elt);
+
+void void_list_init(void_list_t *list);
+void void_list_deinit(void_list_t *list);
+
+void void_list_append(void_list_t *list, void *data);
+void void_list_push(void_list_t *list, void *data);
+void_list_elt_t *void_list_pop(void_list_t *list);
+
+void *void_list_remove(void_list_t *list, void_list_elt_t **iter);
+/* remove element containing elt data, using cmp(elt->data, target_data) == 0. */
+typedef int (*void_list_cmp_t)(const void *, const void *);
+void *void_list_remove_elt(void_list_t *list, const void *target_data, void_list_cmp_t cmp);
+
+void_list_elt_t *void_list_first(void_list_t *list);
+void_list_elt_t *void_list_prev(void_list_t *list, void_list_elt_t *node);
+void_list_elt_t *void_list_next(void_list_t *list, void_list_elt_t *node);
+void_list_elt_t *void_list_last(void_list_t *list);
+
+void void_list_purge(void_list_t *list);
+
+
+#endif