public void RegisterAllocation(StackObject *ptr, StackObject *src, int size, int managedIndex, int managedCount)
{
int emptyIndex = -1;
int cnt = freeBlocks.Length;
for (int i = 0; i < cnt; i++)
{
if (freeBlocks[i].StartAddress == null)
{
emptyIndex = i;
break;
}
}
if (emptyIndex == -1)
{
emptyIndex = freeBlocks.Length;
ExpandFreeList();
}
StackObject *dst;
int mIdx;
allocCallback(size, out dst, out mIdx);
if (dst != src)
{
throw new NotSupportedException();
}
freeBlocks[emptyIndex] = new MemoryBlockInfo()
{
StartAddress = dst,
RequestAddress = ptr,
Size = size,
ManagedCount = managedCount,
ManagedIndex = managedIndex != int.MaxValue ? managedIndex : mIdx
};
}
void ExpandFreeList()
{
int expandSize = Math.Min(freeBlocks.Length, 32);
MemoryBlockInfo[] newArr = new MemoryBlockInfo[freeBlocks.Length + expandSize];
freeBlocks.CopyTo(newArr, 0);
freeBlocks = newArr;
}
public StackObjectAllocation Alloc(StackObject *ptr, int size, int managedSize)
{
int found = -1;
int emptyIndex = -1;
StackObjectAllocation alloc;
int cnt = freeBlocks.Length;
for (int i = 0; i < cnt; i++)
{
if (freeBlocks[i].StartAddress == null)
{
emptyIndex = i;
break;
}
if (freeBlocks[i].RequestAddress == ptr)
{
if (freeBlocks[i].Size >= size && freeBlocks[i].ManagedCount >= managedSize)
{
return(new StackObjectAllocation()
{
Address = freeBlocks[i].StartAddress,
ManagedIndex = freeBlocks[i].ManagedIndex
});
}
//freeBlocks[i].RequestAddress = null;
//freeIndex = i;
FreeBlock(i);
}
}
for (int i = 0; i < cnt; i++)
{
if (freeBlocks[i].StartAddress == null)
{
break;
}
if (freeBlocks[i].RequestAddress == null)
{
if (freeBlocks[i].Size >= size && freeBlocks[i].ManagedCount >= managedSize)
{
found = i;
break;
}
}
}
if (found >= 0)
{
freeBlocks[found].RequestAddress = ptr;
return(new StackObjectAllocation()
{
Address = freeBlocks[found].StartAddress,
ManagedIndex = freeBlocks[found].ManagedIndex
});
}
else
{
if (emptyIndex == -1)
{
emptyIndex = freeBlocks.Length;
ExpandFreeList();
}
allocCallback(size, out alloc.Address, out alloc.ManagedIndex);
freeBlocks[emptyIndex] = new MemoryBlockInfo()
{
StartAddress = alloc.Address,
RequestAddress = ptr,
Size = size,
ManagedCount = managedSize,
ManagedIndex = alloc.ManagedIndex
};
}
return(alloc);
}