Add RefCounted base class back to the reposotory.

src/nvcore/CMakeLists.txt

@@ -2,30 +2,24 @@ PROJECT(nvcore)
 
 SET(CORE_SRCS
 	nvcore.h
+	Algorithms.h
+	Containers.h
+	Debug.h Debug.cpp
 	DefsGnucDarwin.h
 	DefsGnucLinux.h
 	DefsGnucWin32.h
 	DefsVcWin32.h
+	FileSystem.h FileSystem.cpp
+	Library.h Library.cpp
+	Memory.h Memory.cpp
 	Ptr.h
-	Memory.h
-	Memory.cpp
-	Debug.h
-	Debug.cpp
-	Containers.h
-	StrLib.h
-	StrLib.cpp
-	Algorithms.h
-	Timer.h
-	Library.h
-	Library.cpp
+	RefCounted.h RefCounted.cpp
+	StrLib.h StrLib.cpp
 	Stream.h
 	StdStream.h
-	TextReader.h
-	TextReader.cpp
-	TextWriter.h
-	TextWriter.cpp
-	FileSystem.h
-	FileSystem.cpp)
+	TextReader.h TextReader.cpp
+	TextWriter.h TextWriter.cpp
+	Timer.h)
 
 INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
 

src/nvcore/RefCounted.cpp

@@ -0,0 +1,9 @@
+// This code is in the public domain -- castanyo@yahoo.es
+
+#include "RefCounted.h"
+
+using namespace nv;
+
+int nv::RefCounted::s_total_ref_count = 0;
+int nv::RefCounted::s_total_obj_count = 0;
+

src/nvcore/RefCounted.h

@@ -0,0 +1,114 @@
+// This code is in the public domain -- castanyo@yahoo.es
+
+#ifndef NV_CORE_REFCOUNTED_H
+#define NV_CORE_REFCOUNTED_H
+
+#include <nvcore/nvcore.h>
+#include <nvcore/Debug.h>
+
+
+namespace nv
+{
+
+	/// Reference counted base class to be used with SmartPtr and WeakPtr.
+	class RefCounted
+	{
+		NV_FORBID_COPY(RefCounted);
+	public:
+
+		/// Ctor.
+		RefCounted() : m_count(0)/*, m_weak_proxy(NULL)*/
+		{
+			s_total_obj_count++;
+		}
+
+		/// Virtual dtor.
+		virtual ~RefCounted()
+		{
+			nvCheck( m_count == 0 );
+			nvCheck( s_total_obj_count > 0 );
+			s_total_obj_count--;
+		}
+
+
+		/// Increase reference count.
+		uint addRef() const
+		{
+			s_total_ref_count++;
+			m_count++;
+			return m_count;
+		}
+
+
+		/// Decrease reference count and remove when 0.
+		uint release() const
+		{
+			nvCheck( m_count > 0 );
+			
+			s_total_ref_count--;
+			m_count--;
+			if( m_count == 0 ) {
+			//	releaseWeakProxy();
+				delete this;
+				return 0;
+			}
+			return m_count;
+		}
+	/*
+		/// Get weak proxy.
+		WeakProxy * getWeakProxy() const
+		{
+			if (m_weak_proxy == NULL) {
+				m_weak_proxy = new WeakProxy;
+				m_weak_proxy->AddRef();
+			}
+			return m_weak_proxy;
+		}
+
+		/// Release the weak proxy.	
+		void releaseWeakProxy() const
+		{
+			if (m_weak_proxy != NULL) {
+				m_weak_proxy->NotifyObjectDied();
+				m_weak_proxy->Release();
+				m_weak_proxy = NULL;
+			}
+		}
+	*/
+		/** @name Debug methods: */
+		//@{
+			/// Get reference count.
+			int refCount() const
+			{
+				return m_count;
+			}
+
+			/// Get total number of objects.
+			static int totalObjectCount()
+			{
+				return s_total_obj_count;
+			}
+
+			/// Get total number of references.
+			static int totalReferenceCount()
+			{
+				return s_total_ref_count;
+			}
+		//@}
+
+
+	private:
+
+		NVCORE_API static int s_total_ref_count;
+		NVCORE_API static int s_total_obj_count;
+
+		mutable int m_count;
+	//	mutable WeakProxy * weak_proxy;
+
+	};
+
+
+} // nv namespace
+
+
+#endif // NV_CORE_REFCOUNTED_H