ec3/src/chunk-table.h

#ifndef CHUNK_TABLE_H_
#define CHUNK_TABLE_H_

#include "b-tree.h"
#include "bin.h"

#include <blue/core/btree.h>
#include <blue/core/hash.h>
#include <stdio.h>

struct ec3_tag_ioctx;

struct chunk_table {
	struct b_tree tab_chunks;
	enum ec3_cluster_size tab_cluster_size;
	b_btree tab_cache;

	unsigned char *tab_cluster_buf;
	size_t tab_cluster_buf_pos;

	size_t tab_next_cdat_cluster;

	struct ec3_tag_ioctx *tab_ctab;
	struct ec3_tag_ioctx *tab_cdat;

	b_hash_ctx tab_hash;
	size_t tab_first_chunk_cdat_cluster;
};

extern enum ec3_status chunk_table_init(
	struct ec3_tag_ioctx *ctab,
	struct ec3_tag_ioctx *cdat,
	enum ec3_cluster_size cluster_size,
	struct chunk_table *tab);
extern void chunk_table_init_empty_table(struct chunk_table *table);
extern void chunk_table_finish(struct chunk_table *tab);

extern enum ec3_status chunk_table_get(
	struct chunk_table *tab,
	ec3_chunk_id id,
	void *out_data,
	size_t *out_len);

extern enum ec3_status chunk_table_begin_chunk(struct chunk_table *tab);
extern enum ec3_status chunk_table_put(
	struct chunk_table *tab,
	const void *data,
	size_t len);
extern enum ec3_status chunk_table_end_chunk(
	struct chunk_table *tab,
	ec3_chunk_id out_chunk_id);

extern size_t chunk_table_bytes_per_chunk(struct chunk_table *tab);

extern void ec3_chunk_id_to_string(
	const ec3_chunk_id id,
	char *out,
	size_t max);

#endif