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sync refactor

This commit is contained in:
Minghao Li 2022-03-16 16:54:55 +08:00
parent b08cdf2f82
commit 5387e4ff7d
1 changed files with 31 additions and 9 deletions
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40
source/libs/sync/src/syncReplication.c
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@ -18,6 +18,7 @@
#include "syncMessage.h"
#include "syncRaftEntry.h"
#include "syncRaftLog.h"
#include "syncRaftStore.h"
#include "syncUtil.h"
// TLA+ Spec
@ -50,33 +51,54 @@ int32_t syncNodeAppendEntriesPeers(SSyncNode* pSyncNode) {
int32_t ret = 0;
for (int i = 0; i < pSyncNode->peersNum; ++i) {
SRaftId* pDestId = &(pSyncNode->peersId[i]);
SyncIndex nextIndex = syncIndexMgrGetIndex(pSyncNode->pNextIndex, pDestId);
SRaftId* pDestId = &(pSyncNode->peersId[i]);
// set prevLogIndex
SyncIndex nextIndex = syncIndexMgrGetIndex(pSyncNode->pNextIndex, pDestId);
SyncIndex preLogIndex = nextIndex - 1;
// set preLogTerm
SyncTerm preLogTerm = 0;
if (preLogIndex >= SYNC_INDEX_BEGIN) {
SSyncRaftEntry* pPreEntry = pSyncNode->pLogStore->getEntry(pSyncNode->pLogStore, preLogIndex);
assert(pPreEntry != NULL);
preLogTerm = pPreEntry->term;
syncEntryDestory(pPreEntry);
}
SyncIndex lastIndex = syncUtilMinIndex(pSyncNode->pLogStore->getLastIndex(pSyncNode->pLogStore), nextIndex);
assert(nextIndex == lastIndex);
// batch optimized
// SyncIndex lastIndex = syncUtilMinIndex(pSyncNode->pLogStore->getLastIndex(pSyncNode->pLogStore), nextIndex);
SSyncRaftEntry* pEntry = logStoreGetEntry(pSyncNode->pLogStore, nextIndex);
assert(pEntry != NULL);
SyncAppendEntries* pMsg = NULL;
SSyncRaftEntry* pEntry = logStoreGetEntry(pSyncNode->pLogStore, nextIndex);
if (pEntry != NULL) {
SyncAppendEntries* pMsg = syncAppendEntriesBuild(pEntry->bytes);
// add pEntry into msg
uint32_t len;
char* serialized = syncEntrySerialize(pEntry, &len);
assert(len == pEntry->bytes);
memcpy(pMsg->data, serialized, len);
free(serialized);
syncEntryDestory(pEntry);
} else {
// maybe overflow, send empty record
SyncAppendEntries* pMsg = syncAppendEntriesBuild(0);
}
SyncAppendEntries* pMsg = syncAppendEntriesBuild(pEntry->bytes);
pMsg->srcId = pSyncNode->myRaftId;
pMsg->destId = *pDestId;
pMsg->term = pSyncNode->pRaftStore->currentTerm;
pMsg->prevLogIndex = preLogIndex;
pMsg->prevLogTerm = preLogTerm;
pMsg->commitIndex = pSyncNode->commitIndex;
pMsg->dataLen = pEntry->bytes;
// add pEntry into msg
// send AppendEntries
syncNodeAppendEntries(pSyncNode, pDestId, pMsg);
syncAppendEntriesDestroy(pMsg);
}
return ret;