homework-jianmu/source/libs/sync/inc/syncRaftLog.h

54 lines
1.7 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TD_LIBS_SYNC_RAFT_LOG_H
#define _TD_LIBS_SYNC_RAFT_LOG_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "syncInt.h"
#include "taosdef.h"
int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncBuffer* pBuf);
// get one log entry, user need to free pBuf->data
int32_t raftLogGetEntry(struct SSyncLogStore* pLogStore, SyncIndex index, SSyncBuffer* pBuf);
// update log store commit index with "index"
int32_t raftLogUpdateCommitIndex(struct SSyncLogStore* pLogStore, SyncIndex index);
// truncate log with index, entries after the given index (>index) will be deleted
int32_t raftLogTruncate(struct SSyncLogStore* pLogStore, SyncIndex index);
// return commit index of log
SyncIndex raftLogGetCommitIndex(struct SSyncLogStore* pLogStore);
// return index of last entry
SyncIndex raftLogGetLastIndex(struct SSyncLogStore* pLogStore);
// return term of last entry
SyncTerm raftLogGetLastTerm(struct SSyncLogStore* pLogStore);
#ifdef __cplusplus
}
#endif
#endif /*_TD_LIBS_SYNC_RAFT_LOG_H*/