Added rsshared ptr helper object (only use in test for memory management)

Added first nxs_test
modified pserviceserver to allow better dependency injection 

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7279 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/util/rssharedptr.h

@@ -0,0 +1,85 @@
+/*
+ * rssharedptr.h
+ *
+ *  Created on: 16 Apr 2014
+ *      Author: crispy
+ */
+
+#ifndef RSSHAREDPTR_H_
+#define RSSHAREDPTR_H_
+
+#include <stdlib.h>
+
+/*!
+ * Not thread safe!!
+ */
+template<class T>
+class RsSharedPtr
+{
+public:
+
+	RsSharedPtr() : mShared(NULL), mCount(NULL) {}
+
+	RsSharedPtr(T* shared)
+	: mShared(shared), mCount(new int(0))
+	{
+		mCount++;
+	}
+
+	RsSharedPtr(const RsSharedPtr<T>& rsp)
+	{
+		mShared = rsp.mShared;
+		mCount = rsp.mCount;
+		mCount++;
+	}
+
+	void operator=(const RsSharedPtr<T>& rsp)
+	{
+		DecrementAndDeleteIfLast();
+		mShared = rsp.mShared;
+		RepointAndIncrement(rsp.mCount);
+	}
+
+	T* release() { mCount--; T* temp = mShared; mShared = NULL; return temp; }
+	T* get() { return mShared; }
+
+	T& operator*(){ return *mShared; }
+	T* operator->(){ return mShared; }
+
+	~RsSharedPtr()
+	{
+		DecrementAndDeleteIfLast();
+	}
+private:
+
+	void DecrementAndDeleteIfLast()
+	{
+		mCount--;
+		if(mCount == 0 && mShared != NULL)
+		{
+			delete mShared;
+			delete mCount;
+		}
+
+		mShared = NULL;
+		mCount = NULL;
+	}
+
+	void RepointAndIncrement(int* count)
+	{
+		mCount = count;
+		mCount++;
+
+	}
+
+private:
+
+	int* mCount;
+	T* mShared;
+
+};
+
+template<class T>
+RsSharedPtr<T> rs_make_shared(T* ptr){ return RsSharedPtr<T>(ptr); }
+
+#endif /* RSSHAREDPTR_H_ */