diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index 6b88c9074738204d99f2dc536100a68a1656ea77..d8b40f397fae8d66ffd0c489744bfee0a010de43 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -68,7 +68,7 @@ int tsParseTime(SStrToken *pToken, int64_t *time, char **next, char *error, int1
   } else if (strncmp(pToken->z, "0", 1) == 0 && pToken->n == 1) {
     // do nothing
   } else if (pToken->type == TK_INTEGER) {
-    useconds = tsosStr2int64(pToken->z);
+    useconds = taosStr2int64(pToken->z);
   } else {
     // strptime("2001-11-12 18:31:01", "%Y-%m-%d %H:%M:%S", &tm);
     if (taosParseTime(pToken->z, time, pToken->n, timePrec, tsDaylight) != TSDB_CODE_SUCCESS) {
diff --git a/src/os/inc/osDarwin.h b/src/os/inc/osDarwin.h
index 7c206afe7a12e9be17ad997ee50625a0cce438e9..f8e3c65d63f6da7649a7ffc113b3f7ac17c66886 100644
--- a/src/os/inc/osDarwin.h
+++ b/src/os/inc/osDarwin.h
@@ -82,13 +82,11 @@ extern "C" {
   int tsem_destroy(tsem_t *sem);
 
 #define TAOS_OS_FUNC_SOCKET_SETSOCKETOPT
-#define TAOS_OS_FUNC_STRING_STR2INT64
 #define TAOS_OS_FUNC_SYSINFO
 #define TAOS_OS_FUNC_TIMER
 #define TAOS_OS_FUNC_SEMPHONE_PTHREAD
 
 // specific
-#define htobe64 htonll
 typedef int(*__compar_fn_t)(const void *, const void *);
 
 // for send function in tsocket.c
@@ -108,8 +106,6 @@ typedef int(*__compar_fn_t)(const void *, const void *);
 
 #define TAOS_OS_FUNC_PTHREAD_RWLOCK
 
-int64_t tsosStr2int64(char *str);
-
 #include "eok.h"
 
 void taos_block_sigalrm(void);
diff --git a/src/os/inc/osDef.h b/src/os/inc/osDef.h
index ac7aac0afa5175e1f43f148d6b7ea5ba9725cdac..7604100e0aefce4eea186188ad7a07ca22892ad3 100644
--- a/src/os/inc/osDef.h
+++ b/src/os/inc/osDef.h
@@ -111,7 +111,7 @@ extern "C" {
   #define threadlocal __declspec( thread )
 #endif
 
-#if defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32)
+#if !(defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32))
   #define PRIzu "ld"  
 #endif
 
diff --git a/src/os/inc/osMemory.h b/src/os/inc/osMemory.h
index 2cf7e14d2f4bc9fc124cdf4de167c5b2cb93f4bb..27efd9f5051d9f87838980503ed60174de153ad4 100644
--- a/src/os/inc/osMemory.h
+++ b/src/os/inc/osMemory.h
@@ -43,9 +43,6 @@ void   taosTMemset(void *ptr, int c);
 #define tmalloc(size) malloc(size)
 #define tcalloc(num, size) calloc(num, size)
 #define trealloc(ptr, size) realloc(ptr, size)
-#define tstrdup(str) taosStrdupImp(str)
-#define tstrndup(str, size) taosStrndupImp(str, size)
-#define tgetline(lineptr, n, stream) taosGetlineImp(lineptr, n, stream)
 #define tfree(x)         \
   do {                   \
     if (x) {             \
@@ -71,15 +68,8 @@ void   taosTMemset(void *ptr, int c);
     #define tcalloc(num, size) taosCallocMem(num, size, __FILE__, __LINE__)
     #define trealloc(ptr, size) taosReallocMem(ptr, size, __FILE__, __LINE__)
     #define tfree(ptr) taosFreeMem(ptr, __FILE__, __LINE__) 
-    
-    // #undef tstrdup
-    // #undef tstrndup
-    // #undef tgetline
-    // #define taosStrdup(str) taos_strdup(str, __FILE__, __LINE__)
-    // #define taosStrndup(str, size) taos_strndup(str, size, __FILE__, __LINE__)
-    // #define tgetline(lineptr, n, stream) taos_getline(lineptr, n, stream, __FILE__, __LINE__)
   #endif  
-#endif 
+#endif
 
 #ifdef __cplusplus
 }
diff --git a/src/os/inc/osRand.h b/src/os/inc/osRand.h
index 803c0688bb4a9c5fab117d8548206e70b5f152db..e08768c2cc6b379877fb8be7d3541c13bc431f98 100644
--- a/src/os/inc/osRand.h
+++ b/src/os/inc/osRand.h
@@ -20,9 +20,8 @@
 extern "C" {
 #endif
 
-// TAOS_OS_FUNC_RAND
 uint32_t taosRand(void);
-void taosRandStr(char* str, int32_t size);
+void     taosRandStr(char* str, int32_t size);
 uint32_t taosSafeRand(void);
 
 #ifdef __cplusplus
diff --git a/src/os/inc/osSocket.h b/src/os/inc/osSocket.h
index cf75b74a9afa75caa15ec82e191d781159af944f..e60028337fbabadce01b09a812bd08f55b0a251e 100644
--- a/src/os/inc/osSocket.h
+++ b/src/os/inc/osSocket.h
@@ -74,6 +74,16 @@ int32_t taosGetSockOpt(SOCKET socketfd, int32_t level, int32_t optname, void *op
 uint32_t    taosInetAddr(char *ipAddr);
 const char *taosInetNtoa(struct in_addr ipInt);
 
+
+#if (defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32)) 
+  #define htobe64 htonll
+  #if defined(_TD_GO_DLL_)
+    uint64_t htonll(uint64_t val);
+  #endif
+#elif defined(_TD_DARWIN_64)
+  #define htobe64 htonll
+#endif
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/os/inc/osString.h b/src/os/inc/osString.h
index 97966ed412d0ae4ef4970de4dbb6d48c82130671..f2e8b381fe7d4f6d48bc30ec902c1ef576064e78 100644
--- a/src/os/inc/osString.h
+++ b/src/os/inc/osString.h
@@ -20,35 +20,30 @@
 extern "C" {
 #endif
 
-#ifndef TAOS_OS_FUNC_STRING_STRDUP
-  #define taosStrdupImp(str) strdup(str)
-  #define taosStrndupImp(str, size) strndup(str, size)
-#endif
-
-#ifndef TAOS_OS_FUNC_STRING_GETLINE
-  #define taosGetlineImp(lineptr, n, stream) getline(lineptr, n , stream)
-#else 
-  int taosGetlineImp(char **lineptr, size_t *n, FILE *stream);
-#endif
-
-#ifndef TAOS_OS_FUNC_STRING_WCHAR
+#if defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32)
+  #define tstrdup(str) _strdup(str)
+  #define tstrndup(str, size) _strndup(str, size)  
+  int32_t tgetline(char **lineptr, size_t *n, FILE *stream);
+  int32_t twcslen(const wchar_t *wcs);
+#else
+  #define tstrdup(str) strdup(str)
+  #define tstrndup(str, size) strndup(str, size)
+  #define tgetline(lineptr, n, stream) getline(lineptr, n , stream)
   #define twcslen wcslen
-#endif  
+#endif
 
-#define tstrncpy(dst, src, size)   \
-  do {                             \
-    strncpy((dst), (src), (size)); \
-    (dst)[(size)-1] = 0;           \
+#define tstrncpy(dst, src, size) \
+  do {                              \
+    strncpy((dst), (src), (size));  \
+    (dst)[(size)-1] = 0;            \
   } while (0)
 
-#ifndef TAOS_OS_FUNC_STRING_STR2INT64
-  int64_t tsosStr2int64(char *str);
-#endif  
+int64_t taosStr2int64(char *str);
 
 // USE_LIBICONV
 int32_t taosUcs4ToMbs(void *ucs4, int32_t ucs4_max_len, char *mbs);
-bool    taosMbsToUcs4(char *mbs, size_t mbs_len, char *ucs4, int32_t ucs4_max_len, int *len);
-int     tasoUcs4Compare(void *f1_ucs4, void *f2_ucs4, int bytes);
+bool    taosMbsToUcs4(char *mbs, size_t mbs_len, char *ucs4, int32_t ucs4_max_len, int32_t *len);
+int32_t tasoUcs4Compare(void *f1_ucs4, void *f2_ucs4, int32_t bytes);
 bool    taosValidateEncodec(const char *encodec);
 char *  taosCharsetReplace(char *charsetstr);
 
diff --git a/src/os/inc/osWindows.h b/src/os/inc/osWindows.h
index 5fd32711f9a0406f59bbb60f599ff4a6c24d65f3..f90ae6f059442722c4a4d458b37455ee1519881b 100644
--- a/src/os/inc/osWindows.h
+++ b/src/os/inc/osWindows.h
@@ -88,19 +88,6 @@ typedef SOCKET eventfd_t;
   #define EPOLLWAKEUP (1u << 29)
 #endif
 
-#define TAOS_OS_FUNC_STRING_WCHAR
-  int twcslen(const wchar_t *wcs);
-#define TAOS_OS_FUNC_STRING_GETLINE
-#define TAOS_OS_FUNC_STRING_STR2INT64
-  #ifdef _TD_GO_DLL_
-    int64_t tsosStr2int64(char *str);
-    uint64_t htonll(uint64_t val);
-  #else
-    #define tsosStr2int64 _atoi64
-  #endif
-#define TAOS_OS_FUNC_STRING_STRDUP
-  #define taosStrdupImp(str) _strdup(str)
-  #define taosStrndupImp(str, size) _strndup(str, size)  
 
 char *stpcpy (char *dest, const char *src);
 char *stpncpy (char *dest, const char *src, size_t n);
@@ -127,7 +114,6 @@ typedef int (*__compar_fn_t)(const void *, const void *);
 #define snprintf _snprintf
 #define in_addr_t unsigned long
 #define socklen_t int
-#define htobe64 htonll
 
 struct tm *localtime_r(const time_t *timep, struct tm *result);
 char *     strptime(const char *buf, const char *fmt, struct tm *tm);
diff --git a/src/os/src/darwin/darwinString.c b/src/os/src/darwin/darwinString.c
deleted file mode 100644
index 3042e78666c45a97236a45ea20eaf19706104f92..0000000000000000000000000000000000000000
--- a/src/os/src/darwin/darwinString.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * 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/>.
- */
-
-#define _DEFAULT_SOURCE
-#include "os.h"
-
-int64_t tsosStr2int64(char *str) {
-  char *endptr = NULL;
-  return strtoll(str, &endptr, 10);
-}
diff --git a/src/os/src/detail/osRand.c b/src/os/src/detail/osRand.c
index b322a88684e63776b432d2f4025b3d16fc614861..0dda908bb35c68513dba150e8380846c36aa2893 100644
--- a/src/os/src/detail/osRand.c
+++ b/src/os/src/detail/osRand.c
@@ -16,8 +16,6 @@
 #define _DEFAULT_SOURCE
 #include "os.h"
 
-#ifndef TAOS_OS_FUNC_RAND
-
 uint32_t taosRand(void) { return rand(); }
 
 uint32_t taosSafeRand(void) {
@@ -38,8 +36,6 @@ uint32_t taosSafeRand(void) {
   return (uint32_t)seed;
 }
 
-#endif
-
 void taosRandStr(char* str, int32_t size) {
   const char* set = "abcdefghijklmnopqrstuvwxyz0123456789-_.";
   int32_t     len = 39;
diff --git a/src/os/src/detail/osString.c b/src/os/src/detail/osString.c
index 59f47b4815badd8411b54ea997bf6b46f3a18a27..2c49797d83dd4bb53b2fef69091e28be7194461e 100644
--- a/src/os/src/detail/osString.c
+++ b/src/os/src/detail/osString.c
@@ -17,17 +17,17 @@
 #include "os.h"
 #include "tglobal.h"
 
-#ifndef TAOS_OS_FUNC_STRING_STR2INT64
-int64_t tsosStr2int64(char *str) {
+int64_t taosStr2int64(char *str) {
   char *endptr = NULL;
   return strtoll(str, &endptr, 10);
 }
-#endif
 
-#ifndef TAOS_OS_FUNC_STRING_WCHAR
-int tasoUcs4Compare(void *f1_ucs4, void *f2_ucs4, int bytes) {
+#if !(defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32))
+
+int32_t tasoUcs4Compare(void *f1_ucs4, void *f2_ucs4, int32_t bytes) {
   return wcsncmp((wchar_t *)f1_ucs4, (wchar_t *)f2_ucs4, bytes / TSDB_NCHAR_SIZE);
 }
+
 #endif
 
 #ifdef USE_LIBICONV
diff --git a/src/os/src/windows/wGetline.c b/src/os/src/windows/wGetline.c
index 3e8701e19b3ee420648bec984874416410cd14f1..b9d8ccf928b38a647de5655ed361f43f60d05778 100644
--- a/src/os/src/windows/wGetline.c
+++ b/src/os/src/windows/wGetline.c
@@ -40,10 +40,10 @@ null terminator), or -1 on error or EOF.  On a -1 return, the caller
 should check feof(), if not then errno has been set to indicate
 the error.  */
 
-int getstr(char **lineptr, size_t *n, FILE *stream, char terminator, int offset) {
-  int   nchars_avail; /* Allocated but unused chars in *LINEPTR.  */
-  char *read_pos;     /* Where we're reading into *LINEPTR. */
-  int   ret;
+int32_t getstr(char **lineptr, size_t *n, FILE *stream, char terminator, int32_t offset) {
+  int32_t nchars_avail; /* Allocated but unused chars in *LINEPTR.  */
+  char *  read_pos;     /* Where we're reading into *LINEPTR. */
+  int32_t ret;
 
   if (!lineptr || !n || !stream) {
     errno = EINVAL;
@@ -59,12 +59,12 @@ int getstr(char **lineptr, size_t *n, FILE *stream, char terminator, int offset)
     }
   }
 
-  nchars_avail = (int)(*n - offset);
+  nchars_avail = (int32_t)(*n - offset);
   read_pos = *lineptr + offset;
 
   for (;;) {
-    int          save_errno;
-    register int c = getc(stream);
+    int32_t          save_errno;
+    register int32_t c = getc(stream);
 
     save_errno = errno;
 
@@ -79,7 +79,7 @@ int getstr(char **lineptr, size_t *n, FILE *stream, char terminator, int offset)
       else
         *n += MIN_CHUNK;
 
-      nchars_avail = (int)(*n + *lineptr - read_pos);
+      nchars_avail = (int32_t)(*n + *lineptr - read_pos);
       *lineptr = realloc(*lineptr, *n);
       if (!*lineptr) {
         errno = ENOMEM;
@@ -115,10 +115,8 @@ int getstr(char **lineptr, size_t *n, FILE *stream, char terminator, int offset)
   /* Done - NUL terminate and return the number of chars read.  */
   *read_pos = '\0';
 
-  ret = (int)(read_pos - (*lineptr + offset));
+  ret = (int32_t)(read_pos - (*lineptr + offset));
   return ret;
 }
 
-int taosGetlineImp(char **lineptr, size_t *n, FILE *stream) { 
-  return getstr(lineptr, n, stream, '\n', 0);
-}
\ No newline at end of file
+int32_t tgetline(char **lineptr, size_t *n, FILE *stream) { return getstr(lineptr, n, stream, '\n', 0); }
\ No newline at end of file
diff --git a/src/os/src/windows/wGodll.c b/src/os/src/windows/wGodll.c
deleted file mode 100644
index b270dab2f4364c014c0a0b8b28993d0299d11847..0000000000000000000000000000000000000000
--- a/src/os/src/windows/wGodll.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * 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/>.
- */
-
-#define _DEFAULT_SOURCE
-#include "os.h"
-#include "taosdef.h"
-#include "tglobal.h"
-#include "ttimer.h"
-#include "tulog.h"
-#include "tutil.h"
-
-#ifdef _TD_GO_DLL_
-int64_t tsosStr2int64(char *str) {
-  char *endptr = NULL;
-  return strtoll(str, &endptr, 10);
-}
-
-uint64_t htonll(uint64_t val) {
-  return (((uint64_t) htonl(val)) << 32) + htonl(val >> 32);
-}
-#endif
diff --git a/src/os/src/windows/wSocket.c b/src/os/src/windows/wSocket.c
index 4e6ee15e772c5af56b4ebd11e74fc44dd57946f5..e152f40f03538c4a87fa2a55ade3e08dc741bf37 100644
--- a/src/os/src/windows/wSocket.c
+++ b/src/os/src/windows/wSocket.c
@@ -88,4 +88,10 @@ const char *taosInetNtoa(struct in_addr ipInt) {
   return inet_ntop(AF_INET, &ipInt, tmpDstStr, INET6_ADDRSTRLEN);
 }
 
-#endif
\ No newline at end of file
+#endif
+
+#if defined(_TD_GO_DLL_)
+
+uint64_t htonll(uint64_t val) { return (((uint64_t)htonl(val)) << 32) + htonl(val >> 32); }
+
+#endif
diff --git a/src/os/src/windows/wString.c b/src/os/src/windows/wString.c
index 67237e655cd2916ec2ec80daa01e7a0f9ae0d3e3..96a604ae6e3bfb2088a376894c7083a9514ae67f 100644
--- a/src/os/src/windows/wString.c
+++ b/src/os/src/windows/wString.c
@@ -33,9 +33,9 @@
  * If *stringp is NULL, strsep returns NULL.
  */
 char *strsep(char **stringp, const char *delim) {
-  char *s;
+  char *      s;
   const char *spanp;
-  int c, sc;
+  int32_t     c, sc;
   char *tok;
   if ((s = *stringp) == NULL)
     return (NULL);
@@ -75,13 +75,13 @@ char *getpass(const char *prefix) {
   return passwd;
 }
 
-int twcslen(const wchar_t *wcs) {
-  int *wstr = (int *)wcs;
+int32_t twcslen(const wchar_t *wcs) {
+  int32_t *wstr = (int32_t *)wcs;
   if (NULL == wstr) {
     return 0;
   }
 
-  int n = 0;
+  int32_t n = 0;
   while (1) {
     if (0 == *wstr++) {
       break;
@@ -92,8 +92,8 @@ int twcslen(const wchar_t *wcs) {
   return n;
 }
 
-int tasoUcs4Compare(void *f1_ucs4, void *f2_ucs4, int bytes) {
-  for (int i = 0; i < bytes; ++i) {
+int32_t tasoUcs4Compare(void *f1_ucs4, void *f2_ucs4, int32_t bytes) {
+  for (int32_t i = 0; i < bytes; ++i) {
     int32_t f1 = *(int32_t *)((char *)f1_ucs4 + i * 4);
     int32_t f2 = *(int32_t *)((char *)f2_ucs4 + i * 4);
 
@@ -127,7 +127,6 @@ int tasoUcs4Compare(void *f1_ucs4, void *f2_ucs4, int bytes) {
 #endif
 }
 
-
 /* Copy memory to memory until the specified number of bytes
 has been copied, return pointer to following byte.
 Overlap is NOT handled correctly. */