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/* SPDX-License-Identifier: LGPL-3.0-or-later */
/*
* internal.h
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#ifndef INTERNAL_H
#define INTERNAL_H
#include "config.h"
#include "sqfs/block_processor.h"
#include "sqfs/block_writer.h"
#include "sqfs/frag_table.h"
#include "sqfs/compressor.h"
#include "sqfs/inode.h"
#include "sqfs/table.h"
#include "sqfs/error.h"
#include "sqfs/block.h"
#include "sqfs/io.h"
#include "util.h"
#include <string.h>
#include <stdlib.h>
#include <assert.h>
enum {
BLK_FLAG_MANUAL_SUBMISSION = 0x10000000,
BLK_FLAG_INTERNAL = 0x10000000,
};
typedef struct sqfs_block_t {
struct sqfs_block_t *next;
sqfs_inode_generic_t **inode;
sqfs_u32 proc_seq_num;
sqfs_u32 io_seq_num;
sqfs_u32 flags;
sqfs_u32 size;
sqfs_u32 checksum;
/* For data blocks: index within the inode.
For fragment fragment blocks: fragment table index. */
sqfs_u32 index;
/* For fragment blocks: list of fragments to
consolidate in reverse order. */
struct sqfs_block_t *frag_list;
/* User data pointer */
void *user;
sqfs_u8 data[];
} sqfs_block_t;
struct sqfs_block_processor_t {
sqfs_object_t obj;
sqfs_frag_table_t *frag_tbl;
sqfs_compressor_t *cmp;
sqfs_block_t *frag_block;
sqfs_block_writer_t *wr;
sqfs_block_processor_stats_t stats;
sqfs_inode_generic_t **inode;
sqfs_block_t *blk_current;
sqfs_u32 blk_flags;
sqfs_u32 blk_index;
void *user;
sqfs_block_t *free_list;
size_t max_block_size;
bool begin_called;
int (*process_completed_block)(sqfs_block_processor_t *proc,
sqfs_block_t *block);
int (*process_completed_fragment)(sqfs_block_processor_t *proc,
sqfs_block_t *frag,
sqfs_block_t **blk_out);
int (*process_block)(sqfs_block_t *block, sqfs_compressor_t *cmp,
sqfs_u8 *scratch, size_t scratch_size);
int (*append_to_work_queue)(sqfs_block_processor_t *proc,
sqfs_block_t *block);
int (*sync)(sqfs_block_processor_t *proc);
};
SQFS_INTERNAL void block_processor_cleanup(sqfs_block_processor_t *base);
SQFS_INTERNAL int block_processor_init(sqfs_block_processor_t *base,
size_t max_block_size,
sqfs_compressor_t *cmp,
sqfs_block_writer_t *wr,
sqfs_frag_table_t *tbl);
#endif /* INTERNAL_H */
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