factor code

include/libs/stream/streamState.h

@@ -20,13 +20,13 @@
 #include "tsimplehash.h"
 #include "tstreamFileState.h"
 
+#ifndef _STREAM_STATE_H_
+#define _STREAM_STATE_H_
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#ifndef _STREAM_STATE_H_
-#define _STREAM_STATE_H_
-
 // void*      streamBackendInit(const char* path);
 // void       streamBackendCleanup(void* arg);
 // SListNode* streamBackendAddCompare(void* backend, void* arg);