Merge pull request #5563 from taosdata/origin/hotfix/TD-3409

TD-3409

src/rpc/src/rpcMain.c

@@ -1017,6 +1017,13 @@ static SRpcConn *rpcProcessMsgHead(SRpcInfo *pRpc, SRecvInfo *pRecv, SRpcReqCont
   return pConn;
 }
 
+static void doRpcReportBrokenLinkToServer(void *param, void *id) {
+   SRpcMsg *pRpcMsg = (SRpcMsg *)(param); 
+   SRpcConn *pConn  = (SRpcConn *)(pRpcMsg->handle);
+   SRpcInfo *pRpc   = pConn->pRpc; 
+   (*(pRpc->cfp))(pRpcMsg, NULL);
+   free(pRpcMsg);
+}
 static void rpcReportBrokenLinkToServer(SRpcConn *pConn) {
   SRpcInfo *pRpc = pConn->pRpc;
   if (pConn->pReqMsg == NULL) return;
@@ -1025,16 +1032,20 @@ static void rpcReportBrokenLinkToServer(SRpcConn *pConn) {
   rpcAddRef(pRpc);
   tDebug("%s, notify the server app, connection is gone", pConn->info);
 
-  SRpcMsg rpcMsg;
-  rpcMsg.pCont = pConn->pReqMsg;     // pReqMsg is re-used to store the APP context from server
-  rpcMsg.contLen = pConn->reqMsgLen; // reqMsgLen is re-used to store the APP context length
-  rpcMsg.ahandle = pConn->ahandle;
-  rpcMsg.handle = pConn;
-  rpcMsg.msgType = pConn->inType;
-  rpcMsg.code = TSDB_CODE_RPC_NETWORK_UNAVAIL; 
+  SRpcMsg *rpcMsg = malloc(sizeof(SRpcMsg));
+  rpcMsg->pCont = pConn->pReqMsg;     // pReqMsg is re-used to store the APP context from server
+  rpcMsg->contLen = pConn->reqMsgLen; // reqMsgLen is re-used to store the APP context length
+  rpcMsg->ahandle = pConn->ahandle;
+  rpcMsg->handle = pConn;
+  rpcMsg->msgType = pConn->inType;
+  rpcMsg->code = TSDB_CODE_RPC_NETWORK_UNAVAIL; 
   pConn->pReqMsg = NULL;
   pConn->reqMsgLen = 0;
-  if (pRpc->cfp) (*(pRpc->cfp))(&rpcMsg, NULL);
+  if (pRpc->cfp) {
+    taosTmrStart(doRpcReportBrokenLinkToServer, 0, rpcMsg, pRpc->tmrCtrl);
+  } else {
+    free(rpcMsg);
+  }
 }
 
 static void rpcProcessBrokenLink(SRpcConn *pConn) {
@@ -1051,7 +1062,7 @@ static void rpcProcessBrokenLink(SRpcConn *pConn) {
     pConn->pReqMsg = NULL;
     taosTmrStart(rpcProcessConnError, 0, pContext, pRpc->tmrCtrl);
   }
-
+   
   if (pConn->inType) rpcReportBrokenLinkToServer(pConn); 
 
   rpcReleaseConn(pConn);