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

65 lines
1.6 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <cli@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_H
#define _TD_LIBS_SYNC_RAFT_H
#include "sync.h"
#include "sync_type.h"
#include "raft_message.h"
typedef struct SSyncRaftProgress SSyncRaftProgress;
typedef struct RaftLeaderState {
int nProgress;
SSyncRaftProgress* progress;
} RaftLeaderState;
typedef struct SSyncRaftIOMethods {
SyncTime (*time)(SSyncRaft*);
} SSyncRaftIOMethods;
struct SSyncRaft {
// owner sync node
SSyncNode* pNode;
SSyncInfo info;
// election timeout tick(random in [3:6] tick)
uint16_t electionTick;
// heartbeat timeout tick(default: 1 tick)
uint16_t heartbeatTick;
int installSnapShotTimeoutMS;
//
int heartbeatTimeoutMS;
bool preVote;
SSyncRaftIOMethods io;
RaftLeaderState leaderState;
SSyncRaftUnstableLog *log;
};
int32_t syncRaftStart(SSyncRaft* pRaft, const SSyncInfo* pInfo);
int32_t syncRaftStep(SSyncRaft* pRaft, const RaftMessage* pMsg);
int32_t syncRaftTick(SSyncRaft* pRaft);
#endif /* _TD_LIBS_SYNC_RAFT_H */