1 /* $OpenBSD: tree.h,v 1.1 2018/12/23 16:06:24 gilles Exp $ */ 2 3 /* 4 * Copyright (c) 2013 Eric Faurot <eric@openbsd.org> 5 * Copyright (c) 2011 Gilles Chehade <gilles@poolp.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #ifndef _TREE_H_ 21 #define _TREE_H_ 22 23 SPLAY_HEAD(_tree, treeentry); 24 25 struct tree { 26 struct _tree tree; 27 size_t count; 28 }; 29 30 31 /* tree.c */ 32 #define tree_init(t) do { SPLAY_INIT(&((t)->tree)); (t)->count = 0; } while(0) 33 #define tree_empty(t) SPLAY_EMPTY(&((t)->tree)) 34 #define tree_count(t) ((t)->count) 35 int tree_check(struct tree *, uint64_t); 36 void *tree_set(struct tree *, uint64_t, void *); 37 void tree_xset(struct tree *, uint64_t, void *); 38 void *tree_get(struct tree *, uint64_t); 39 void *tree_xget(struct tree *, uint64_t); 40 void *tree_pop(struct tree *, uint64_t); 41 void *tree_xpop(struct tree *, uint64_t); 42 int tree_poproot(struct tree *, uint64_t *, void **); 43 int tree_root(struct tree *, uint64_t *, void **); 44 int tree_iter(struct tree *, void **, uint64_t *, void **); 45 int tree_iterfrom(struct tree *, void **, uint64_t, uint64_t *, void **); 46 void tree_merge(struct tree *, struct tree *); 47 48 #endif 49