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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef NETDATA_DATAFILE_H
#define NETDATA_DATAFILE_H
#include "rrdengine.h"
/* Forward declarations */
struct rrdengine_datafile;
struct rrdengine_journalfile;
struct rrdengine_instance;
#define DATAFILE_PREFIX "datafile-"
#define DATAFILE_EXTENSION ".ndf"
#define MAX_DATAFILE_SIZE (1073741824LU)
#define MIN_DATAFILE_SIZE (4194304LU)
#define MAX_DATAFILES (65536) /* Supports up to 64TiB for now */
#define TARGET_DATAFILES (20)
#define DATAFILE_IDEAL_IO_SIZE (1048576U)
struct extent_info {
uint64_t offset;
uint32_t size;
uint8_t number_of_pages;
struct rrdengine_datafile *datafile;
struct extent_info *next;
struct rrdeng_page_descr *pages[];
};
struct rrdengine_df_extents {
/* the extent list is sorted based on disk offset */
struct extent_info *first;
struct extent_info *last;
};
/* only one event loop is supported for now */
struct rrdengine_datafile {
unsigned tier;
unsigned fileno;
uv_file file;
uint64_t pos;
struct rrdengine_instance *ctx;
struct rrdengine_df_extents extents;
struct rrdengine_journalfile *journalfile;
struct rrdengine_datafile *next;
};
struct rrdengine_datafile_list {
struct rrdengine_datafile *first; /* oldest */
struct rrdengine_datafile *last; /* newest */
};
extern void df_extent_insert(struct extent_info *extent);
extern void datafile_list_insert(struct rrdengine_instance *ctx, struct rrdengine_datafile *datafile);
extern void datafile_list_delete(struct rrdengine_instance *ctx, struct rrdengine_datafile *datafile);
extern void generate_datafilepath(struct rrdengine_datafile *datafile, char *str, size_t maxlen);
extern int close_data_file(struct rrdengine_datafile *datafile);
extern int unlink_data_file(struct rrdengine_datafile *datafile);
extern int destroy_data_file(struct rrdengine_datafile *datafile);
extern int create_data_file(struct rrdengine_datafile *datafile);
extern int create_new_datafile_pair(struct rrdengine_instance *ctx, unsigned tier, unsigned fileno);
extern int init_data_files(struct rrdengine_instance *ctx);
extern void finalize_data_files(struct rrdengine_instance *ctx);
#endif /* NETDATA_DATAFILE_H */
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