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

44 lines
1.6 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_TIMEOUT_H
#define _TD_LIBS_SYNC_TIMEOUT_H
#ifdef __cplusplus
extern "C" {
#endif
#include "syncInt.h"
// TLA+ Spec
// Timeout(i) == /\ state[i] \in {Follower, Candidate}
// /\ state' = [state EXCEPT ![i] = Candidate]
// /\ currentTerm' = [currentTerm EXCEPT ![i] = currentTerm[i] + 1]
// \* Most implementations would probably just set the local vote
// \* atomically, but messaging localhost for it is weaker.
// /\ votedFor' = [votedFor EXCEPT ![i] = Nil]
// /\ votesResponded' = [votesResponded EXCEPT ![i] = {}]
// /\ votesGranted' = [votesGranted EXCEPT ![i] = {}]
// /\ voterLog' = [voterLog EXCEPT ![i] = [j \in {} |-> <<>>]]
// /\ UNCHANGED <<messages, leaderVars, logVars>>
//
int32_t syncNodeOnTimeout(SSyncNode* ths, const SRpcMsg* pMsg);
#ifdef __cplusplus
}
#endif
#endif /*_TD_LIBS_SYNC_TIMEOUT_H*/