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/* $OpenBSD: tree.h,v 1.1 2018/12/23 16:06:24 gilles Exp $ */
/*
* Copyright (c) 2013 Eric Faurot <eric@openbsd.org>
* Copyright (c) 2011 Gilles Chehade <gilles@poolp.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _TREE_H_
#define _TREE_H_
SPLAY_HEAD(_tree, treeentry);
struct tree {
struct _tree tree;
size_t count;
};
/* tree.c */
#define tree_init(t) do { SPLAY_INIT(&((t)->tree)); (t)->count = 0; } while(0)
#define tree_empty(t) SPLAY_EMPTY(&((t)->tree))
#define tree_count(t) ((t)->count)
int tree_check(struct tree *, uint64_t);
void *tree_set(struct tree *, uint64_t, void *);
void tree_xset(struct tree *, uint64_t, void *);
void *tree_get(struct tree *, uint64_t);
void *tree_xget(struct tree *, uint64_t);
void *tree_pop(struct tree *, uint64_t);
void *tree_xpop(struct tree *, uint64_t);
int tree_poproot(struct tree *, uint64_t *, void **);
int tree_root(struct tree *, uint64_t *, void **);
int tree_iter(struct tree *, void **, uint64_t *, void **);
int tree_iterfrom(struct tree *, void **, uint64_t, uint64_t *, void **);
void tree_merge(struct tree *, struct tree *);
#endif
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