1 /* $NetBSD: idr.h,v 1.2 2014/03/18 18:20:43 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Taylor R. Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LINUX_IDR_H_ 33 #define _LINUX_IDR_H_ 34 35 #include <sys/types.h> 36 #include <sys/rwlock.h> 37 #include <sys/rbtree.h> 38 39 /* XXX Stupid expedient algorithm should be replaced by something better. */ 40 41 struct idr { 42 kmutex_t idr_lock; 43 rb_tree_t idr_tree; 44 struct idr_node *idr_temp; 45 }; 46 47 /* XXX Make the nm output a little more greppable... */ 48 #define idr_init linux_idr_init 49 #define idr_destroy linux_idr_destroy 50 #define idr_find linux_idr_find 51 #define idr_replace linux_idr_replace 52 #define idr_remove linux_idr_remove 53 #define idr_remove_all linux_idr_remove_all 54 #define idr_pre_get linux_idr_pre_get 55 #define idr_get_new_above linux_idr_get_new_above 56 #define idr_for_each linux_idr_for_each 57 58 void idr_init(struct idr *); 59 void idr_destroy(struct idr *); 60 void *idr_find(struct idr *, int); 61 void *idr_replace(struct idr *, void *, int); 62 void idr_remove(struct idr *, int); 63 void idr_remove_all(struct idr *); 64 int idr_pre_get(struct idr *, int); 65 int idr_get_new_above(struct idr *, void *, int, int *); 66 int idr_for_each(struct idr *, int (*)(int, void *, void *), void *); 67 68 #endif /* _LINUX_IDR_H_ */ 69