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Annotation of qemu/roms/openbios/fs/hfsplus/include/volume.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * libhfs - library for reading and writing Macintosh HFS volumes
                      3:  * Copyright (C) 2000 Klaus Halfmann <[email protected]>^
                      4:  * Original 1996-1998 Robert Leslie <[email protected]>
                      5:  *
                      6:  * This program is free software; you can redistribute it and/or modify
                      7:  * it under the terms of the GNU General Public License as published by
                      8:  * the Free Software Foundation; either version 2 of the License, or
                      9:  * (at your option) any later version.
                     10:  *
                     11:  * This program is distributed in the hope that it will be useful,
                     12:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
                     13:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     14:  * GNU General Public License for more details.
                     15:  *
                     16:  * You should have received a copy of the GNU General Public License
                     17:  * along with this program; if not, write to the Free Software
                     18:  * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
                     19:  * MA 02110-1301, USA.
                     20:  *
                     21:  * $Id: volume.h,v 1.11 2000/10/17 05:58:46 hasi Exp $
                     22:  */
                     23: 
                     24: #ifndef _H_VOLUME
                     25: #define _H_VOLUME
                     26: 
                     27: /* Open the device, read and verify the volume header
                     28:    (and its backup) */
                     29: extern int volume_open(volume* vol, int os_fd);
                     30: 
                     31: /* Write back all data eventually cached and close the device. */
                     32: extern int volume_close(volume* vol);
                     33: 
                     34: /* read multiple blocks into given memory.
                     35:  *
                     36:  * returns given pointer or NULL on failure.
                     37:  */
                     38: extern void* volume_readfromfork(volume* vol, void* buf,
                     39:        hfsp_fork_raw* f, UInt32 block,
                     40:        UInt32 count, UInt8 forktype, UInt32 fileId);
                     41: 
                     42: /* Fill a given buffer with the given block in volume.
                     43:  */
                     44: int volume_readinbuf(volume * vol,void* buf, long block);
                     45: 
                     46: /* invalidat cache hold in volume, will be removed when
                     47:  * caching strategy is clear to me. */
                     48: /*
                     49: extern inline void volume_invalidate_cache(volume* vol)
                     50: {
                     51:     vol -> currblock = (UInt32) -1;
                     52: }
                     53: */
                     54: 
                     55: /* Check in Allocation file if given block is allocated. */
                     56: extern int volume_allocated(volume* v, UInt32 block);
                     57: 
                     58: /* Read a raw hfsp_extent_rec from memory. */
                     59: extern void* volume_readextent(void *p, hfsp_extent_rec er);
                     60: 
                     61: /* Read fork information from raw memory */
                     62: extern void* volume_readfork(void *p, hfsp_fork_raw* f);
                     63: 
                     64: /* internal function used to create the extents btree,
                     65:    is called by following inline fucntion when needed */
                     66: extern void volume_create_extents_tree(volume* vol);
                     67: 
                     68: /* accessor for entends btree, is created on demand */
                     69: static inline btree* volume_get_extents_tree(volume* vol) {
                     70:     if (!vol->extents)
                     71:        volume_create_extents_tree(vol);
                     72:     return vol->extents;
                     73: }
                     74: 
                     75: /* Determine whether the volume is a HFS-plus volume */
                     76: int volume_probe(int fd, long long offset);
                     77: 
                     78: #ifdef DEBUG
                     79:     /* Print raw fork information to stdout */
                     80:   void volume_print_fork(hfsp_fork_raw* f);
                     81:     /* Dump all the volume information to stdout */
                     82:   void volume_print(hfsp_vh* vol);
                     83: #endif
                     84: 
                     85: 
                     86: 
                     87: #endif   /* _H_VOLUME */

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