diff --git a/source/libs/tdb/src/inc/tdbOs.h b/source/libs/tdb/src/inc/tdbOs.h
index bc610917f64d26ee23950e8296c5e1a4202b5a96..794d4c502a28bc46edb4ebc2507d8b1d2e32551c 100644
--- a/source/libs/tdb/src/inc/tdbOs.h
+++ b/source/libs/tdb/src/inc/tdbOs.h
@@ -23,30 +23,19 @@ extern "C" {
 // TODO: use cmake to control the option
 #define TDB_FOR_TDENGINE
 
-// For memory -----------------
 #ifdef TDB_FOR_TDENGINE
 
+// For memory -----------------
 #define tdbOsMalloc  taosMemoryMalloc
 #define tdbOsCalloc  taosMemoryCalloc
 #define tdbOsRealloc taosMemoryRealloc
 #define tdbOsFree    taosMemoryFree
 
-#else
-
-#define tdbOsMalloc  malloc
-#define tdbOsCalloc  calloc
-#define tdbOsRealloc realloc
-#define tdbOsFree    free
-
-#endif
-
 // For file and directory -----------------
-#ifdef TDB_FOR_TDENGINE
-
 /* file */
 typedef TdFilePtr tdb_fd_t;
 
-#define TDB_O_CREAT TD_FILE_CTEATE
+#define TDB_O_CREAT  TD_FILE_CTEATE
 #define TDB_O_WRITE  TD_FILE_WRITE
 #define TDB_O_READ   TD_FILE_READ
 #define TDB_O_TRUNC  TD_FILE_TRUNC
@@ -67,12 +56,37 @@ typedef TdFilePtr tdb_fd_t;
 #define tdbOsMkdir taosMkDir
 #define tdbOsRmdir taosRemoveDir
 
+// For threads and lock -----------------
+/* spin lock */
+typedef TdThreadSpinlock tdb_spinlock_t;
+
+#define tdbSpinlockInit    taosThreadSpinInit
+#define tdbSpinlockDestroy taosThreadSpinDestroy
+#define tdbSpinlockLock    taosThreadSpinLock
+#define tdbSpinlockUnlock  taosThreadSpinUnlock
+#define tdbSpinlockTrylock pthread_spin_trylock
+
+/* mutex lock */
+typedef TdThreadMutex tdb_mutex_t;
+
+#define tdbMutexInit    taosThreadMutexInit
+#define tdbMutexDestroy taosThreadMutexDestroy
+#define tdbMutexLock    taosThreadMutexLock
+#define tdbMutexUnlock  taosThreadMutexUnlock
+
 #else
 
+// For memory -----------------
+#define tdbOsMalloc  malloc
+#define tdbOsCalloc  calloc
+#define tdbOsRealloc realloc
+#define tdbOsFree    free
+
+// For file and directory -----------------
 /* file */
 typedef int tdb_fd_t;
 
-#define TDB_O_CREAT O_CREAT
+#define TDB_O_CREAT  O_CREAT
 #define TDB_O_WRITE  O_WRONLY
 #define TDB_O_READ   O_RDONLY
 #define TDB_O_TRUNC  O_TRUNC
@@ -95,30 +109,7 @@ i64 tdbOsWrite(tdb_fd_t fd, const void *pData, i64 nBytes);
 #define tdbOsMkdir  mkdir
 #define tdbOsRmdir  rmdir
 
-#endif
-
 // For threads and lock -----------------
-#ifdef TDB_FOR_TDENGINE
-
-/* spin lock */
-typedef TdThreadSpinlock tdb_spinlock_t;
-
-#define tdbSpinlockInit    taosThreadSpinInit
-#define tdbSpinlockDestroy taosThreadSpinDestroy
-#define tdbSpinlockLock    taosThreadSpinLock
-#define tdbSpinlockUnlock  taosThreadSpinUnlock
-#define tdbSpinlockTrylock pthread_spin_trylock
-
-/* mutex lock */
-typedef TdThreadMutex tdb_mutex_t;
-
-#define tdbMutexInit    taosThreadMutexInit
-#define tdbMutexDestroy taosThreadMutexDestroy
-#define tdbMutexLock    taosThreadMutexLock
-#define tdbMutexUnlock  taosThreadMutexUnlock
-
-#else
-
 /* spin lock */
 typedef pthread_spinlock_t tdb_spinlock_t;