-typedef signed __int8 int8_t;
-typedef signed __int16 int16_t;
-typedef signed __int32 int32_t;
-typedef signed __int64 int64_t;
-typedef unsigned __int8 uint8_t;
-typedef unsigned __int16 uint16_t;
-typedef unsigned __int32 uint32_t;
-typedef unsigned __int64 uint64_t;
+typedef SOCKET tcp_socket_t;
+#define INVALID_SOCKET_VALUE INVALID_SOCKET
+typedef HANDLE serial_socket_t;
+#define INVALID_SERIAL_SOCKET_VALUE INVALID_HANDLE_VALUE