netdata/database/engine/datafile.h at master · feiyunwill/netdata · GitHub

History

67 lines (55 loc) · 2.17 KB

Raw

// 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 */

netdata/database/engine/datafile.h at master · feiyunwill/netdata · GitHub

Expand file tree

Breadcrumbs

datafile.h

Latest commit

History

Breadcrumbs

datafile.h

File metadata and controls