fs/fat/context.h

/*
    libparted
    Copyright (C) 1999-2000, 2007, 2009-2010 Free Software Foundation,
    Inc.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef PED_FAT_CONTEXT_H_INCLUDED
#define PED_FAT_CONTEXT_H_INCLUDED

#include "count.h"

enum _FatDirection {
    FAT_DIR_FORWARD,
    FAT_DIR_BACKWARD
};
typedef enum _FatDirection FatDirection;

struct _FatOpContext {
    PedFileSystem*      old_fs;
    PedFileSystem*      new_fs;

    PedSector       frag_sectors;   /* should equal old_fs and
                           new_fs's frag_sectors */

    FatDirection        start_move_dir;
    FatFragment     start_move_delta;

    FatFragment     buffer_offset;
    FatFragment     buffer_frags;
    FatFragment*        buffer_map;

    FatFragment     frags_duped;

    FatFragment*        remap;

    FatCluster      new_root_dir [32];
};
typedef struct _FatOpContext FatOpContext;

extern FatOpContext* fat_op_context_new (PedFileSystem* new_fs,
                     PedFileSystem* old_fs);

extern void fat_op_context_destroy (FatOpContext* ctx);

extern FatFragment fat_op_context_map_static_fragment (const FatOpContext* ctx,
                               FatFragment frag);
extern FatCluster fat_op_context_map_static_cluster (const FatOpContext* ctx,
                             FatCluster clst);

extern FatFragment fat_op_context_map_fragment (const FatOpContext* ctx,
                            FatFragment frag);
extern FatCluster fat_op_context_map_cluster (const FatOpContext* ctx,
                          FatCluster clst);

extern int fat_op_context_create_initial_fat (FatOpContext* ctx);

#endif /* PED_FAT_CONTEXT_H_INCLUDED */