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

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/*
* 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_INT_H
#define _TD_LIBS_SYNC_INT_H
#ifdef __cplusplus
extern "C" {
#endif
#include "sync.h"
#include "syncTools.h"
#include "tlog.h"
#include "ttimer.h"
// clang-format off
#define sFatal(...) do { if (sDebugFlag & DEBUG_FATAL) { taosPrintLog("SYN FATAL ", DEBUG_FATAL, 255, __VA_ARGS__); }} while(0)
#define sError(...) do { if (sDebugFlag & DEBUG_ERROR) { taosPrintLog("SYN ERROR ", DEBUG_ERROR, 255, __VA_ARGS__); }} while(0)
#define sWarn(...) do { if (sDebugFlag & DEBUG_WARN) { taosPrintLog("SYN WARN ", DEBUG_WARN, 255, __VA_ARGS__); }} while(0)
#define sInfo(...) do { if (sDebugFlag & DEBUG_INFO) { taosPrintLog("SYN ", DEBUG_INFO, 255, __VA_ARGS__); }} while(0)
#define sDebug(...) do { if (sDebugFlag & DEBUG_DEBUG) { taosPrintLog("SYN ", DEBUG_DEBUG, sDebugFlag, __VA_ARGS__); }} while(0)
#define sTrace(...) do { if (sDebugFlag & DEBUG_TRACE) { taosPrintLog("SYN ", DEBUG_TRACE, sDebugFlag, __VA_ARGS__); }} while(0)
#define sFatalLong(...) do { if (sDebugFlag & DEBUG_FATAL) { taosPrintLongString("SYN FATAL ", DEBUG_FATAL, 255, __VA_ARGS__); }} while(0)
#define sErrorLong(...) do { if (sDebugFlag & DEBUG_ERROR) { taosPrintLongString("SYN ERROR ", DEBUG_ERROR, 255, __VA_ARGS__); }} while(0)
#define sWarnLong(...) do { if (sDebugFlag & DEBUG_WARN) { taosPrintLongString("SYN WARN ", DEBUG_WARN, 255, __VA_ARGS__); }} while(0)
#define sInfoLong(...) do { if (sDebugFlag & DEBUG_INFO) { taosPrintLongString("SYN ", DEBUG_INFO, 255, __VA_ARGS__); }} while(0)
#define sDebugLong(...) do { if (sDebugFlag & DEBUG_DEBUG) { taosPrintLongString("SYN ", DEBUG_DEBUG, sDebugFlag, __VA_ARGS__); }} while(0)
#define sTraceLong(...) do { if (sDebugFlag & DEBUG_TRACE) { taosPrintLongString("SYN ", DEBUG_TRACE, sDebugFlag, __VA_ARGS__); }} while(0)
// clang-format on
typedef struct SyncTimeout SyncTimeout;
typedef struct SyncClientRequest SyncClientRequest;
typedef struct SyncPing SyncPing;
typedef struct SyncPingReply SyncPingReply;
typedef struct SyncRequestVote SyncRequestVote;
typedef struct SyncRequestVoteReply SyncRequestVoteReply;
typedef struct SyncAppendEntries SyncAppendEntries;
typedef struct SyncAppendEntriesReply SyncAppendEntriesReply;
typedef struct SSyncEnv SSyncEnv;
typedef struct SRaftStore SRaftStore;
typedef struct SVotesGranted SVotesGranted;
typedef struct SVotesRespond SVotesRespond;
typedef struct SSyncIndexMgr SSyncIndexMgr;
typedef struct SRaftCfg SRaftCfg;
typedef struct SSyncRespMgr SSyncRespMgr;
typedef struct SSyncSnapshotSender SSyncSnapshotSender;
typedef struct SSyncSnapshotReceiver SSyncSnapshotReceiver;
extern bool gRaftDetailLog;
typedef struct SSyncNode {
// init by SSyncInfo
SyncGroupId vgId;
SRaftCfg* pRaftCfg;
char path[TSDB_FILENAME_LEN];
char raftStorePath[TSDB_FILENAME_LEN * 2];
char configPath[TSDB_FILENAME_LEN * 2];
// sync io
SWal* pWal;
const SMsgCb* msgcb;
int32_t (*FpSendMsg)(const SEpSet* pEpSet, SRpcMsg* pMsg);
int32_t (*FpEqMsg)(const SMsgCb* msgcb, SRpcMsg* pMsg);
// init internal
SNodeInfo myNodeInfo;
SRaftId myRaftId;
int32_t peersNum;
SNodeInfo peersNodeInfo[TSDB_MAX_REPLICA];
SRaftId peersId[TSDB_MAX_REPLICA];
int32_t replicaNum;
SRaftId replicasId[TSDB_MAX_REPLICA];
// raft algorithm
SSyncFSM* pFsm;
int32_t quorum;
SRaftId leaderCache;
// life cycle
int64_t rid;
// tla+ server vars
ESyncState state;
SRaftStore* pRaftStore;
// tla+ candidate vars
SVotesGranted* pVotesGranted;
SVotesRespond* pVotesRespond;
// tla+ leader vars
SSyncIndexMgr* pNextIndex;
SSyncIndexMgr* pMatchIndex;
// tla+ log vars
SSyncLogStore* pLogStore;
SyncIndex commitIndex;
// timer ms init
int32_t pingBaseLine;
int32_t electBaseLine;
int32_t hbBaseLine;
// ping timer
tmr_h pPingTimer;
int32_t pingTimerMS;
uint64_t pingTimerLogicClock;
uint64_t pingTimerLogicClockUser;
TAOS_TMR_CALLBACK FpPingTimerCB; // Timer Fp
uint64_t pingTimerCounter;
// elect timer
tmr_h pElectTimer;
int32_t electTimerMS;
uint64_t electTimerLogicClock;
uint64_t electTimerLogicClockUser;
TAOS_TMR_CALLBACK FpElectTimerCB; // Timer Fp
uint64_t electTimerCounter;
// heartbeat timer
tmr_h pHeartbeatTimer;
int32_t heartbeatTimerMS;
uint64_t heartbeatTimerLogicClock;
uint64_t heartbeatTimerLogicClockUser;
TAOS_TMR_CALLBACK FpHeartbeatTimerCB; // Timer Fp
uint64_t heartbeatTimerCounter;
// callback
FpOnPingCb FpOnPing;
FpOnPingReplyCb FpOnPingReply;
FpOnClientRequestCb FpOnClientRequest;
FpOnTimeoutCb FpOnTimeout;
FpOnRequestVoteCb FpOnRequestVote;
FpOnRequestVoteReplyCb FpOnRequestVoteReply;
FpOnAppendEntriesCb FpOnAppendEntries;
FpOnAppendEntriesReplyCb FpOnAppendEntriesReply;
FpOnSnapshotSendCb FpOnSnapshotSend;
FpOnSnapshotRspCb FpOnSnapshotRsp;
// tools
SSyncRespMgr* pSyncRespMgr;
// restore state
bool restoreFinish;
// SSnapshot* pSnapshot;
SSyncSnapshotSender* senders[TSDB_MAX_REPLICA];
SSyncSnapshotReceiver* pNewNodeReceiver;
// SSnapshotMeta sMeta;
} SSyncNode;
// open/close --------------
SSyncNode* syncNodeOpen(const SSyncInfo* pSyncInfo);
void syncNodeStart(SSyncNode* pSyncNode);
void syncNodeStartStandBy(SSyncNode* pSyncNode);
void syncNodeClose(SSyncNode* pSyncNode);
// option
bool syncNodeSnapshotEnable(SSyncNode* pSyncNode);
// ping --------------
int32_t syncNodePing(SSyncNode* pSyncNode, const SRaftId* destRaftId, SyncPing* pMsg);
int32_t syncNodePingSelf(SSyncNode* pSyncNode);
int32_t syncNodePingPeers(SSyncNode* pSyncNode);
int32_t syncNodePingAll(SSyncNode* pSyncNode);
// timer control --------------
int32_t syncNodeStartPingTimer(SSyncNode* pSyncNode);
int32_t syncNodeStopPingTimer(SSyncNode* pSyncNode);
int32_t syncNodeStartElectTimer(SSyncNode* pSyncNode, int32_t ms);
int32_t syncNodeStopElectTimer(SSyncNode* pSyncNode);
int32_t syncNodeRestartElectTimer(SSyncNode* pSyncNode, int32_t ms);
int32_t syncNodeResetElectTimer(SSyncNode* pSyncNode);
int32_t syncNodeStartHeartbeatTimer(SSyncNode* pSyncNode);
int32_t syncNodeStopHeartbeatTimer(SSyncNode* pSyncNode);
// utils --------------
int32_t syncNodeSendMsgById(const SRaftId* destRaftId, SSyncNode* pSyncNode, SRpcMsg* pMsg);
int32_t syncNodeSendMsgByInfo(const SNodeInfo* nodeInfo, SSyncNode* pSyncNode, SRpcMsg* pMsg);
cJSON* syncNode2Json(const SSyncNode* pSyncNode);
char* syncNode2Str(const SSyncNode* pSyncNode);
char* syncNode2SimpleStr(const SSyncNode* pSyncNode);
void syncNodeUpdateConfig(SSyncNode* pSyncNode, SSyncCfg* newConfig, SyncIndex lastConfigChangeIndex, bool* isDrop);
SSyncNode* syncNodeAcquire(int64_t rid);
void syncNodeRelease(SSyncNode* pNode);
// raft state change --------------
void syncNodeUpdateTerm(SSyncNode* pSyncNode, SyncTerm term);
void syncNodeBecomeFollower(SSyncNode* pSyncNode, const char* debugStr);
void syncNodeBecomeLeader(SSyncNode* pSyncNode, const char* debugStr);
void syncNodeCandidate2Leader(SSyncNode* pSyncNode);
void syncNodeFollower2Candidate(SSyncNode* pSyncNode);
void syncNodeLeader2Follower(SSyncNode* pSyncNode);
void syncNodeCandidate2Follower(SSyncNode* pSyncNode);
// raft vote --------------
void syncNodeVoteForTerm(SSyncNode* pSyncNode, SyncTerm term, SRaftId* pRaftId);
void syncNodeVoteForSelf(SSyncNode* pSyncNode);
// snapshot --------------
bool syncNodeHasSnapshot(SSyncNode* pSyncNode);
bool syncNodeIsIndexInSnapshot(SSyncNode* pSyncNode, SyncIndex index);
SyncIndex syncNodeGetLastIndex(SSyncNode* pSyncNode);
SyncTerm syncNodeGetLastTerm(SSyncNode* pSyncNode);
int32_t syncNodeGetLastIndexTerm(SSyncNode* pSyncNode, SyncIndex* pLastIndex, SyncTerm* pLastTerm);
SyncIndex syncNodeSyncStartIndex(SSyncNode* pSyncNode);
SyncIndex syncNodeGetPreIndex(SSyncNode* pSyncNode, SyncIndex index);
SyncTerm syncNodeGetPreTerm(SSyncNode* pSyncNode, SyncIndex index);
int32_t syncNodeGetPreIndexTerm(SSyncNode* pSyncNode, SyncIndex index, SyncIndex* pPreIndex, SyncTerm* pPreTerm);
int32_t syncNodeCommit(SSyncNode* ths, SyncIndex beginIndex, SyncIndex endIndex, uint64_t flag);
bool syncNodeInRaftGroup(SSyncNode* ths, SRaftId* pRaftId);
SSyncSnapshotSender* syncNodeGetSnapshotSender(SSyncNode* ths, SRaftId* pDestId);
// for debug --------------
void syncNodePrint(SSyncNode* pObj);
void syncNodePrint2(char* s, SSyncNode* pObj);
void syncNodeLog(SSyncNode* pObj);
void syncNodeLog2(char* s, SSyncNode* pObj);
#ifdef __cplusplus
}
#endif
#endif /*_TD_LIBS_SYNC_INT_H*/
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