minor style changes

src/inc/sdb.h

@@ -23,7 +23,6 @@ extern "C" {
 #include "taosmsg.h"
 #include "tsdb.h"
 
-extern uint32_t      sdbDebugFlag;
 extern short    sdbPeerPort;
 extern short    sdbSyncPort;
 extern int      sdbMaxNodes;

src/inc/tcache.h

@@ -49,10 +49,10 @@ void *taosAddDataIntoCache(void *handle, char *key, char *pData, int dataSize, i
  * if it is referenced by other object, it will be remain in cache
  * @param handle    cache object
  * @param data      not the key, actually referenced data
- * @param remove   force model, reduce the ref count and move the data into
+ * @param _remove   force model, reduce the ref count and move the data into
  * pTrash
  */
-void taosRemoveDataFromCache(void *handle, void **data, bool remove);
+void taosRemoveDataFromCache(void *handle, void **data, bool _remove);
 
 /**
  * update data in cache

src/inc/textbuffer.h

@@ -28,7 +28,7 @@ extern "C" {
 
 #define DEFAULT_PAGE_SIZE               16384  // 16k larger than the SHistoInfo
 #define MIN_BUFFER_SIZE                 (1 << 19)
-#define MAX_TMPFILE_PATH_LENGTH 512
+#define MAX_TMPFILE_PATH_LENGTH         PATH_MAX
 #define INITIAL_ALLOCATION_BUFFER_SIZE  64
 
 // forward declare

src/inc/tkey.h

@@ -12,9 +12,12 @@
  * 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/>.
  */
+#ifndef TDENGINE_TKEY_H
+#define TDENGINE_TKEY_H
 
-#ifndef _TAOS_KEY_H_
-#define _TAOS_KEY_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #include <stdbool.h>
 #include <stdint.h>
@@ -27,4 +30,8 @@ char *base64_encode(const unsigned char *value, int vlen);
 char *taosDesEncode(int64_t key, char *src, int len);
 char *taosDesDecode(int64_t key, char *src, int len);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif

src/inc/ttypes.h

@@ -53,8 +53,7 @@ void setNullN(char *val, int32_t type, int32_t bytes, int32_t numOfElems);
 void assignVal(char *val, char *src, int32_t len, int32_t type);
 void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);
 
-// variant, each number/string/field_id has a corresponding struct during
-// parsing sql
+// variant, each number/string/field_id has a corresponding struct during parsing sql
 typedef struct tVariant {
   uint32_t nType;
   int32_t  nLen;  // only used for string, for number, it is useless