60 lines
2.1 KiB
C
60 lines
2.1 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_REQUEST_VOTE_H
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#define _TD_LIBS_SYNC_REQUEST_VOTE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "syncInt.h"
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#include "syncMessage.h"
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#include "taosdef.h"
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// TLA+ Spec
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// HandleRequestVoteRequest(i, j, m) ==
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// LET logOk == \/ m.mlastLogTerm > LastTerm(log[i])
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// \/ /\ m.mlastLogTerm = LastTerm(log[i])
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// /\ m.mlastLogIndex >= Len(log[i])
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// grant == /\ m.mterm = currentTerm[i]
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// /\ logOk
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// /\ votedFor[i] \in {Nil, j}
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// IN /\ m.mterm <= currentTerm[i]
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// /\ \/ grant /\ votedFor' = [votedFor EXCEPT ![i] = j]
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// \/ ~grant /\ UNCHANGED votedFor
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// /\ Reply([mtype |-> RequestVoteResponse,
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// mterm |-> currentTerm[i],
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// mvoteGranted |-> grant,
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// \* mlog is used just for the `elections' history variable for
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// \* the proof. It would not exist in a real implementation.
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// mlog |-> log[i],
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// msource |-> i,
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// mdest |-> j],
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// m)
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// /\ UNCHANGED <<state, currentTerm, candidateVars, leaderVars, logVars>>
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//
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int32_t syncNodeOnRequestVoteCb(SSyncNode* ths, SyncRequestVote* pMsg);
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int32_t syncNodeOnRequestVoteSnapshotCb(SSyncNode* ths, SyncRequestVote* pMsg);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_LIBS_SYNC_REQUEST_VOTE_H*/
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