Allow volume as both db and dbs

wb/lib/wb/src/wb_vrep.h

@@ -133,6 +133,8 @@ public:
   virtual bool isCommonMeta() const { return false;}
   virtual bool isMeta() const { return false;}
   virtual bool accessSupported( ldh_eAccess access) = 0;
+  virtual bool duplicateDb() const { return false;}
+  virtual void setDuplicateDb( bool duplicate) {}
 
   void addSrep( wb_srep *srep);
   void removeSrep( wb_srep *srep);

wb/lib/wb/src/wb_vrepdbs.cpp

@@ -17,7 +17,7 @@ wb_vrep *wb_vrepdbs::ref()
   return this;
 }
 
-wb_vrepdbs::wb_vrepdbs(wb_erep *erep, const char *fileName) : m_erep(erep), m_nRef(0)
+wb_vrepdbs::wb_vrepdbs(wb_erep *erep, const char *fileName) : m_erep(erep), m_nRef(0), m_duplicate(false)
 {
   strcpy(m_fileName, fileName);
   m_isDbsenvLoaded = false;

wb/lib/wb/src/wb_vrepdbs.h

@@ -19,6 +19,7 @@ public:
   bool m_isDbsenvLoaded;
     
   dbs_sEnv m_dbsenv;
+  bool m_duplicate;
     
   wb_vrepdbs(wb_erep *erep, const char *fileName);
 
@@ -147,7 +148,8 @@ public:
 				 pwr_tOid *roid)
     { return false;}
   virtual bool accessSupported( ldh_eAccess access) { return access == ldh_eAccess_ReadOnly; }
-
+  virtual bool duplicateDb() const { return m_duplicate;}
+  virtual void setDuplicateDb( bool duplicate) { m_duplicate = duplicate;}
 };