[+] MemoryView::ToSharedControlBlock

[+] et al

Include/Aurora/Memory/MemoryView.hpp

@@ -26,6 +26,21 @@ namespace Aurora::Memory
         //     (Consider inverse construction order, for instance, we'd have to always call MemoryView::ResetControlBlock()
         //      in a derived subclass, in order release the pInUseCounter reference before the derived shared members get released)
         AuSPtr<void> pPinner; // WARNING: as usual, std types don't validate their allocator, and our shared ptrs can be different between binaries! 
+
+        ~MemoryControlBlock()
+        {
+            this->Release();
+        }
+
+        void Release()
+        {
+            if (auto pCounter = AuExchange(this->pInUseCounter, nullptr))
+            {
+                AuAtomicSub(pCounter, 1u);
+            }
+
+            AuResetMember(this->pPinner);
+        }
     };
 
     template<bool Readonly_b>
@@ -216,11 +231,6 @@ namespace Aurora::Memory
             this->controlBlock.pPinner = pRAIIOwner;
         }
 
-        ~MemoryView()
-        {
-            this->ResetControlBlock();
-        }
-
     private:
         template<typename T>
         MemoryView(T *start, AuUInt length, const MemoryControlBlock &copyBlock)
@@ -382,11 +392,15 @@ namespace Aurora::Memory
             return MemoryView(MemoryView(pData.get(), uLength), pData);
         }
 
-        bool CloneSelf()
+        bool TryCloneSelf(bool bResetOnFailure = true)
         {
             auto replacement = Clone();
             if (!replacement)
             {
+                if (bResetOnFailure)
+                {
+                    AuResetMember(*this);
+                }
                 return false;
             }
             AuResetMember(*this, replacement);
@@ -407,17 +421,6 @@ namespace Aurora::Memory
     private:
         MemoryControlBlock controlBlock;
 
-    protected:
-        void ResetControlBlock()
-        {
-            if (auto pCounter = AuExchange(this->controlBlock.pInUseCounter, nullptr))
-            {
-                AuAtomicSub(pCounter, 1u);
-            }
-
-            AuResetMember(this->controlBlock.pPinner);
-        }
-
     public:
         bool HasControlBlock() const
         {
@@ -467,6 +470,21 @@ namespace Aurora::Memory
         #endif
         }
 
+        AuSPtr<MemoryView> TryPromoteToSharedViewNoParentNesting(AuSPtr<void> pParent = {})
+        {
+            if (this->HasControlBlock())
+            {
+                return AuMakeShared<MemoryView>(*this);
+            }
+
+            if (pParent)
+            {
+                return AuMakeShared<MemoryView>(*this, pParent);
+            }
+
+            return {};
+        }
+
         bool TryDemoteFromSharedView(const AuSPtr<MemoryView> &pCopy)
         {
             if (pCopy && pCopy->HasControlBlock())
@@ -480,6 +498,19 @@ namespace Aurora::Memory
             }
         }
 
+        bool TryDemoteFromReference(const MemoryView &refCopy)
+        {
+            if (refCopy.HasControlBlock())
+            {
+                AuResetMember(*this, refCopy);
+                return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+
         void DemoteFromSharedView(const AuSPtr<MemoryView> &pCopy)
         {
             if (!pCopy)
@@ -497,6 +528,39 @@ namespace Aurora::Memory
                 AuResetMember(*this, AuConstReference(*pCopy.get()), pCopy);
             }
         }
+
+        AuSPtr<void> ToSharedControlBlock(bool *pbFailed = nullptr)
+        {
+            if (pbFailed)
+            {
+                *pbFailed = false;
+            }
+
+            if (this->controlBlock.pInUseCounter)
+            {
+                auto pShared = AuMakeShared<MemoryControlBlock>();
+                if (!pShared)
+                {
+                    if (pbFailed)
+                    {
+                        *pbFailed = true;
+                    }
+                    return {};
+                }
+
+                AuAtomicAdd(&this->controlBlock.pInUseCounter, 1u);
+                pShared->pInUseCounter = this->controlBlock.pInUseCounter;
+                pShared->pPinner = this->controlBlock.pPinner;
+                return pShared;
+            }
+
+            if (this->controlBlock.pPinner)
+            {
+                return this->controlBlock.pPinner;
+            }
+
+            return {};
+        }
     };
 
     using MemoryViewRead  = MemoryView<true>;