wal add sync info

include/libs/wal/wal.h

@@ -77,13 +77,24 @@ extern "C" {
 #pragma pack(push, 1)
 typedef enum { TAOS_WAL_NOLOG = 0, TAOS_WAL_WRITE = 1, TAOS_WAL_FSYNC = 2 } EWalType;
 
+// used by sync module
+typedef struct {
+  int8_t   isWeek;
+  uint64_t seqNum;
+  uint64_t term;
+} SSyncInfo;
+
 typedef struct SWalReadHead {
   int8_t  headVer;
-  int16_t msgType;
   int8_t  reserved;
+  int16_t msgType;
   int32_t len;
   int64_t ingestTs;  // not implemented
   int64_t version;
+
+  // sync info
+  SSyncInfo syncInfo;
+
   char body[];
 } SWalReadHead;
 
@@ -158,6 +169,7 @@ int32_t walAlter(SWal *, SWalCfg *pCfg);
 void    walClose(SWal *);
 
 // write
+int64_t walWriteWithSyncInfo(SWal *, int64_t index, tmsg_t msgType, SSyncInfo info, const void *body, int32_t bodyLen);
 int64_t walWrite(SWal *, int64_t index, tmsg_t msgType, const void *body, int32_t bodyLen);
 void    walFsync(SWal *, bool force);
 

source/client/stream/stream.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/>.
- */
\ No newline at end of file

source/libs/wal/src/walWrite.c

@@ -253,7 +253,8 @@ static int walWriteIndex(SWal *pWal, int64_t ver, int64_t offset) {
   return 0;
 }
 
-int64_t walWrite(SWal *pWal, int64_t index, tmsg_t msgType, const void *body, int32_t bodyLen) {
+int64_t walWriteWithSyncInfo(SWal *pWal, int64_t index, tmsg_t msgType, SSyncInfo syncInfo, const void *body,
+                             int32_t bodyLen) {
   if (pWal == NULL) return -1;
   int code = 0;
 
@@ -296,6 +297,10 @@ int64_t walWrite(SWal *pWal, int64_t index, tmsg_t msgType, const void *body, in
   int64_t offset = walGetCurFileOffset(pWal);
   pWal->writeHead.head.len = bodyLen;
   pWal->writeHead.head.msgType = msgType;
+
+  // sync info
+  pWal->writeHead.head.syncInfo = syncInfo;
+
   pWal->writeHead.cksumHead = walCalcHeadCksum(&pWal->writeHead);
   pWal->writeHead.cksumBody = walCalcBodyCksum(body, bodyLen);
 
@@ -332,6 +337,15 @@ int64_t walWrite(SWal *pWal, int64_t index, tmsg_t msgType, const void *body, in
   return 0;
 }
 
+int64_t walWrite(SWal *pWal, int64_t index, tmsg_t msgType, const void *body, int32_t bodyLen) {
+  SSyncInfo info = {
+      .isWeek = -1,
+      .seqNum = UINT64_MAX,
+      .term = UINT64_MAX,
+  };
+  return walWriteWithSyncInfo(pWal, index, msgType, info, body, bodyLen);
+}
+
 void walFsync(SWal *pWal, bool forceFsync) {
   if (forceFsync || (pWal->cfg.level == TAOS_WAL_FSYNC && pWal->cfg.fsyncPeriod == 0)) {
     wTrace("vgId:%d, fileId:%" PRId64 ".log, do fsync", pWal->cfg.vgId, walGetCurFileFirstVer(pWal));