1/* 2 * Copyright (c) 2005-2011 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28#ifndef _HFS_BTREEIO_H_ 29#define _HFS_BTREEIO_H_ 30 31#include <sys/appleapiopts.h> 32 33#ifdef KERNEL 34#ifdef __APPLE_API_PRIVATE 35 36#include "hfs.h" 37#include "hfscommon/headers/BTreesInternal.h" 38 39/* BTree accessor routines */ 40extern OSStatus SetBTreeBlockSize(FileReference vp, ByteCount blockSize, 41 ItemCount minBlockCount); 42 43extern OSStatus GetBTreeBlock(FileReference vp, u_int32_t blockNum, 44 GetBlockOptions options, BlockDescriptor *block); 45 46extern OSStatus ReleaseBTreeBlock(FileReference vp, BlockDescPtr blockPtr, 47 ReleaseBlockOptions options); 48 49extern OSStatus ExtendBTreeFile(FileReference vp, FSSize minEOF, FSSize maxEOF); 50 51extern void ModifyBlockStart(FileReference vp, BlockDescPtr blockPtr); 52 53int hfs_create_attr_btree(struct hfsmount *hfsmp, u_int32_t nodesize, u_int32_t nodecnt); 54 55u_int16_t get_btree_nodesize(struct vnode *vp); 56 57#endif /* __APPLE_API_PRIVATE */ 58#endif /* KERNEL */ 59#endif /* ! _HFS_BTREEIO_H_ */ 60