54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TD_LIBS_SYNC_RAFT_STORE_H
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#define _TD_LIBS_SYNC_RAFT_STORE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "syncInt.h"
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#define RAFT_STORE_BLOCK_SIZE 512
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#define RAFT_STORE_PATH_LEN (TSDB_FILENAME_LEN * 2)
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#define EMPTY_RAFT_ID ((SRaftId){.addr = 0, .vgId = 0})
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typedef struct SRaftStore {
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SyncTerm currentTerm;
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SRaftId voteFor;
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TdFilePtr pFile;
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char path[RAFT_STORE_PATH_LEN];
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} SRaftStore;
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SRaftStore *raftStoreOpen(const char *path);
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int32_t raftStoreClose(SRaftStore *pRaftStore);
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int32_t raftStorePersist(SRaftStore *pRaftStore);
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int32_t raftStoreSerialize(SRaftStore *pRaftStore, char *buf, size_t len);
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int32_t raftStoreDeserialize(SRaftStore *pRaftStore, char *buf, size_t len);
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bool raftStoreHasVoted(SRaftStore *pRaftStore);
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void raftStoreVote(SRaftStore *pRaftStore, SRaftId *pRaftId);
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void raftStoreClearVote(SRaftStore *pRaftStore);
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void raftStoreNextTerm(SRaftStore *pRaftStore);
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void raftStoreSetTerm(SRaftStore *pRaftStore, SyncTerm term);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_LIBS_SYNC_RAFT_STORE_H*/
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