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