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enh(sync): syncNodeOnRequestVoteSnapshotCb

This commit is contained in:
Minghao Li 2022-05-31 18:04:49 +08:00
parent b9472dc386
commit a20cac89cc
1 changed files with 39 additions and 1 deletions
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40
source/libs/sync/src/syncRequestVote.c
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@ -78,4 +78,42 @@ int32_t syncNodeOnRequestVoteCb(SSyncNode* ths, SyncRequestVote* pMsg) {
return ret; return ret;
} }
int32_t syncNodeOnRequestVoteSnapshotCb(SSyncNode* ths, SyncRequestVote* pMsg) { return 0; } int32_t syncNodeOnRequestVoteSnapshotCb(SSyncNode* ths, SyncRequestVote* pMsg) {
int32_t ret = 0;
char logBuf[128] = {0};
snprintf(logBuf, sizeof(logBuf), "==syncNodeOnRequestVoteSnapshotCb== term:%lu", ths->pRaftStore->currentTerm);
syncRequestVoteLog2(logBuf, pMsg);
if (pMsg->term > ths->pRaftStore->currentTerm) {
syncNodeUpdateTerm(ths, pMsg->term);
}
assert(pMsg->term <= ths->pRaftStore->currentTerm);
SyncIndex lastIndex;
SyncTerm lastTerm;
ret = syncNodeGetLastIndexTerm(ths, &lastIndex, &lastTerm);
ASSERT(ret == 0);
bool logOK = (pMsg->lastLogTerm > lastTerm) || ((pMsg->lastLogTerm == lastTerm) && (pMsg->lastLogIndex >= lastIndex));
bool grant = (pMsg->term == ths->pRaftStore->currentTerm) && logOK &&
((!raftStoreHasVoted(ths->pRaftStore)) || (syncUtilSameId(&(ths->pRaftStore->voteFor), &(pMsg->srcId))));
if (grant) {
// maybe has already voted for pMsg->srcId
// vote again, no harm
raftStoreVote(ths->pRaftStore, &(pMsg->srcId));
}
SyncRequestVoteReply* pReply = syncRequestVoteReplyBuild(ths->vgId);
pReply->srcId = ths->myRaftId;
pReply->destId = pMsg->srcId;
pReply->term = ths->pRaftStore->currentTerm;
pReply->voteGranted = grant;
SRpcMsg rpcMsg;
syncRequestVoteReply2RpcMsg(pReply, &rpcMsg);
syncNodeSendMsgById(&pReply->destId, ths, &rpcMsg);
syncRequestVoteReplyDestroy(pReply);
return ret;
}