From 8ce34a9096a1f7f2e0a78f5eb54198b97bd8a43a Mon Sep 17 00:00:00 2001
From: Hongze Cheng <hzcheng@taosdata.com>
Date: Tue, 12 Oct 2021 16:37:44 +0800
Subject: [PATCH] fix some compile warning

---
 include/common/tdataformat.h    | 2 +-
 include/os/osDir.h              | 2 +-
 source/common/src/tdataformat.c | 2 +-
 source/os/src/osDir.c           | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/common/tdataformat.h b/include/common/tdataformat.h
index c4321eb9df..2eef9db064 100644
--- a/include/common/tdataformat.h
+++ b/include/common/tdataformat.h
@@ -87,7 +87,7 @@ typedef struct {
 #define schemaColAt(s, i) ((s)->columns + i)
 #define tdFreeSchema(s) tfree((s))
 
-STSchema *tdDupSchema(STSchema *pSchema);
+STSchema *tdDupSchema(const STSchema *pSchema);
 int       tdEncodeSchema(void **buf, STSchema *pSchema);
 void *    tdDecodeSchema(void *buf, STSchema **pRSchema);
 
diff --git a/include/os/osDir.h b/include/os/osDir.h
index 32733753a8..3ee3be2c10 100644
--- a/include/os/osDir.h
+++ b/include/os/osDir.h
@@ -20,7 +20,7 @@
 extern "C" {
 #endif
 
-void taosRemoveDir(char *dirname);
+void taosRemoveDir(const char *dirname);
 bool taosDirExist(char *dirname);
 bool taosMkDir(char *dirname);
 void taosRemoveOldFiles(char *dirname, int32_t keepDays);
diff --git a/source/common/src/tdataformat.c b/source/common/src/tdataformat.c
index 6e76e3a8d0..94d93b651a 100644
--- a/source/common/src/tdataformat.c
+++ b/source/common/src/tdataformat.c
@@ -48,7 +48,7 @@ int tdAllocMemForCol(SDataCol *pCol, int maxPoints) {
 /**
  * Duplicate the schema and return a new object
  */
-STSchema *tdDupSchema(STSchema *pSchema) {
+STSchema *tdDupSchema(const STSchema *pSchema) {
 
   int tlen = sizeof(STSchema) + sizeof(STColumn) * schemaNCols(pSchema);
   STSchema *tSchema = (STSchema *)malloc(tlen);
diff --git a/source/os/src/osDir.c b/source/os/src/osDir.c
index 839db811fd..17ab88edf6 100644
--- a/source/os/src/osDir.c
+++ b/source/os/src/osDir.c
@@ -34,7 +34,7 @@
 #include <unistd.h>
 #include <wordexp.h>
 
-void taosRemoveDir(char *dirname) {
+void taosRemoveDir(const char *dirname) {
   DIR *dir = opendir(dirname);
   if (dir == NULL) return;
 
-- 
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