1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * Declarations for the functions in libcmdutils. 29 */ 30 31 #ifndef _LIBCMDUTILS_H 32 #define _LIBCMDUTILS_H 33 34 #pragma ident "%Z%%M% %I% %E% SMI" 35 36 /* 37 * This is a private header file. Applications should not directly include 38 * this file. 39 */ 40 41 #include <sys/avl.h> 42 #include <sys/types.h> 43 #include <stdlib.h> 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 /* avltree */ 50 #define OFFSETOF(s, m) ((size_t)(&(((s *)0)->m))) 51 52 /* Type used for a node containing a device id and inode number */ 53 typedef struct tree_node { 54 dev_t node_dev; 55 ino_t node_ino; 56 avl_node_t avl_link; 57 } tree_node_t; 58 59 /* 60 * Used to compare two nodes. We are attempting to match the 1st 61 * argument (node) against the 2nd argument (a node which 62 * is already in the search tree). 63 */ 64 extern int tnode_compare(const void *, const void *); 65 66 /* 67 * Used to add a single node (containing the input device id and 68 * inode number) to the specified search tree. The calling 69 * application must set the tree pointer to NULL before calling 70 * add_tnode() for the first time. 71 */ 72 extern int add_tnode(avl_tree_t **, dev_t, ino_t); 73 74 /* 75 * Used to destroy a whole tree (all nodes) without rebalancing. 76 * The calling application is responsible for setting the tree 77 * pointer to NULL upon return. 78 */ 79 extern void destroy_tree(avl_tree_t *); 80 81 #ifdef __cplusplus 82 } 83 #endif 84 85 #endif /* _LIBCMDUTILS_H */ 86