data_reader.h

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/* SPDX-License-Identifier: LGPL-3.0-or-later */
/*
 * data_reader.h - This file is part of libsquashfs
 *
 * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#ifndef SQFS_DATA_READER_H
#define SQFS_DATA_READER_H
 
#include "sqfs/predef.h"


 
#ifdef __cplusplus
extern "C" {
#endif

SQFS_API sqfs_data_reader_t *sqfs_data_reader_create(sqfs_file_t *file,
                             size_t block_size,
                             sqfs_compressor_t *cmp,
                             sqfs_u32 flags);

SQFS_API int sqfs_data_reader_load_fragment_table(sqfs_data_reader_t *data,
                          const sqfs_super_t *super);

SQFS_API int sqfs_data_reader_get_fragment(sqfs_data_reader_t *data,
                       const sqfs_inode_generic_t *inode,
                       size_t *size, sqfs_u8 **out);

SQFS_API int sqfs_data_reader_get_block(sqfs_data_reader_t *data,
                    const sqfs_inode_generic_t *inode,
                    size_t index, size_t *size,
                    sqfs_u8 **out);

SQFS_API sqfs_s32 sqfs_data_reader_read(sqfs_data_reader_t *data,
                    const sqfs_inode_generic_t *inode,
                    sqfs_u64 offset, void *buffer,
                    sqfs_u32 size);
 
#ifdef __cplusplus
}
#endif
 
#endif /* SQFS_DATA_READER_H */