add commit snapshot

source/dnode/vnode/inc/vnode.h

@@ -62,6 +62,7 @@ int32_t vnodeGetLoad(SVnode *pVnode, SVnodeLoad *pLoad);
 int     vnodeValidateTableHash(SVnodeCfg *pVnodeOptions, char *tableFName);
 
 int64_t vnodeGetSyncHandle(SVnode *pVnode);
+void    vnodeGetSnapshot(SVnode *pVnode, SSnapshot *pSnapshot);
 
 // meta
 typedef struct SMeta      SMeta;  // todo: remove

source/dnode/vnode/src/inc/vnodeInt.h

@@ -74,7 +74,7 @@ typedef struct {
 
 // SVState
 struct SVState {
-  int64_t processed;
+  // int64_t processed;
   int64_t committed;
   int64_t applied;
 };

source/dnode/vnode/src/vnd/vnodeCommit.c

@@ -158,12 +158,23 @@ int vnodeSyncCommit(SVnode *pVnode) {
 }
 
 static int vnodeCommit(void *arg) {
-  SVnode *pVnode = (SVnode *)arg;
+  SVnode    *pVnode = (SVnode *)arg;
+  char       dir[TSDB_FILENAME_LEN];
+  SVnodeInfo info = {0};
+
+  snprintf(dir, TSDB_FILENAME_LEN, "%s%s%s", tfsGetPrimaryPath(pVnode->pTfs), TD_DIRSEP, pVnode->path);
+  info.config = pVnode->config;
+  info.state.committed = pVnode->state.applied;
+  info.state.applied = pVnode->state.applied;
+
+  vnodeSaveInfo(dir, &info);
 
   // metaCommit(pVnode->pMeta);
   tqCommit(pVnode->pTq);
   tsdbCommit(pVnode->pTsdb);
 
+  vnodeCommitInfo(dir, &info);
+
   vnodeBufPoolRecycle(pVnode);
   tsem_post(&(pVnode->canCommit));
   return 0;
@@ -185,6 +196,7 @@ static int vnodeEncodeState(const void *pObj, SJson *pJson) {
   const SVState *pState = (SVState *)pObj;
 
   if (tjsonAddIntegerToObject(pJson, "commit version", pState->committed) < 0) return -1;
+  if (tjsonAddIntegerToObject(pJson, "applied version", pState->applied) < 0) return -1;
 
   return 0;
 }
@@ -193,6 +205,7 @@ static int vnodeDecodeState(const SJson *pJson, void *pObj) {
   SVState *pState = (SVState *)pObj;
 
   if (tjsonGetNumberValue(pJson, "commit version", pState->committed) < 0) return -1;
+  if (tjsonGetNumberValue(pJson, "applied version", pState->applied) < 0) return -1;
 
   return 0;
 }

source/dnode/vnode/src/vnd/vnodeOpen.c

@@ -75,8 +75,7 @@ SVnode *vnodeOpen(const char *path, STfs *pTfs, SMsgCb msgCb) {
   pVnode->path = (char *)&pVnode[1];
   strcpy(pVnode->path, path);
   pVnode->config = info.config;
-  pVnode->state.committed = info.state.committed;
-  pVnode->state.processed = pVnode->state.applied = pVnode->state.committed;
+  pVnode->state = info.state;
   pVnode->pTfs = pTfs;
   pVnode->msgCb = msgCb;
 
@@ -170,4 +169,6 @@ void vnodeClose(SVnode *pVnode) {
   }
 }
 
-int64_t vnodeGetSyncHandle(SVnode *pVnode) { return pVnode->sync; }
+int64_t vnodeGetSyncHandle(SVnode *pVnode) { return pVnode->sync; }
\ No newline at end of file
+
+void vnodeGetSnapshot(SVnode *pVnode, SSnapshot *pSnapshot) { pSnapshot->lastApplyIndex = pVnode->state.committed; }
\ No newline at end of file

source/dnode/vnode/src/vnd/vnodeSvr.c

@@ -23,6 +23,7 @@ static int vnodeProcessAlterStbReq(SVnode *pVnode, void *pReq);
 static int vnodeProcessSubmitReq(SVnode *pVnode, SSubmitReq *pSubmitReq, SRpcMsg *pRsp);
 
 int vnodePreprocessWriteReqs(SVnode *pVnode, SArray *pMsgs, int64_t *version) {
+#if 0
   SNodeMsg *pMsg;
   SRpcMsg  *pRpc;
 
@@ -40,6 +41,7 @@ int vnodePreprocessWriteReqs(SVnode *pVnode, SArray *pMsgs, int64_t *version) {
 
   walFsync(pVnode->pWal, false);
 
+#endif
   return 0;
 }