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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef NETDATA_JOURNALFILE_H
#define NETDATA_JOURNALFILE_H
#include "rrdengine.h"
/* Forward declarations */
struct rrdengine_instance;
struct rrdengine_worker_config;
struct rrdengine_datafile;
struct rrdengine_journalfile;
#define WALFILE_PREFIX "journalfile-"
#define WALFILE_EXTENSION ".njf"
/* only one event loop is supported for now */
struct rrdengine_journalfile {
uv_file file;
uint64_t pos;
struct rrdengine_datafile *datafile;
};
/* only one event loop is supported for now */
struct transaction_commit_log {
uint64_t transaction_id;
/* outstanding transaction buffer */
void *buf;
unsigned buf_pos;
unsigned buf_size;
};
extern void journalfile_init(struct rrdengine_journalfile *journalfile, struct rrdengine_datafile *datafile);
extern void *wal_get_transaction_buffer(struct rrdengine_worker_config* wc, unsigned size);
extern void wal_flush_transaction_buffer(struct rrdengine_worker_config* wc);
extern int destroy_journal_file(struct rrdengine_journalfile *journalfile, struct rrdengine_datafile *datafile);
extern int create_journal_file(struct rrdengine_journalfile *journalfile, struct rrdengine_datafile *datafile);
extern int load_journal_file(struct rrdengine_instance *ctx, struct rrdengine_journalfile *journalfile,
struct rrdengine_datafile *datafile);
extern void init_commit_log(struct rrdengine_instance *ctx);
#endif /* NETDATA_JOURNALFILE_H */
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