private void Resize(int newLength)
{
void *newPointer = null;
if (newLength > 0)
{
newPointer = AllocatorManager.Allocate(allocator, UnsafeUtility.SizeOf <Node>(), UnsafeUtility.AlignOf <Node>(), newLength);
if (length > 0)
{
var itemsToCopy = math.min(length, newLength);
var bytesToCopy = itemsToCopy * UnsafeUtility.SizeOf <Node>();
UnsafeUtility.MemCpy(newPointer, ptr, bytesToCopy);
}
}
AllocatorManager.Free(allocator, ptr);
for (int i = newLength - 1; i >= length; i--)
{
emptyIndices->Add(i);
}
ptr = newPointer;
length = newLength;
}
public static void Destroy(UnsafeNodesList *listData)
{
var allocator = listData->allocator;
listData->Dispose();
AllocatorManager.Free(allocator, listData);
}
public void Dispose()
{
for (var i = m_blocks.Length - 1; i >= 0; --i)
{
AllocatorManager.Free(m_handle, (void *)m_blocks[i]);
}
m_allocations.Dispose();
m_blocks.Dispose();
}
public void Dispose()
{
if (ptr != null)
{
AllocatorManager.Free(allocator, ptr);
allocator = Allocator.Invalid;
ptr = null;
length = 0;
UnsafeList.Destroy(emptyIndices);
}
}
/// <summary>
/// Destroys list.
/// </summary>
/// <param name="listData">Container to destroy.</param>
public static void Destroy(UnsafePtrList *listData)
{
UnsafeList.CheckNull(listData);
var allocator = listData->ListData().Allocator.Value == AllocatorManager.Invalid.Value
? AllocatorManager.Persistent
: listData->ListData().Allocator
;
listData->Dispose();
AllocatorManager.Free(allocator, listData);
}
public void Free(void *pointer)
{
if (pointer == null)
{
return;
}
var blocks = m_allocations.Length; // how many blocks have we allocated?
for (var i = blocks - 1; i >= 0; --i)
{
var block = (byte *)m_blocks[i]; // get a pointer to the block.
if (pointer >= block && pointer < block + ms_BlockSize) // is the pointer we want to free in this block?
{
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (m_allocations.Ptr[i] <= 0) // if that block has no allocations, we can't proceed
{
throw new ArgumentException($"Cannot free this pointer from BlockAllocator: no more allocations to free in its block.");
}
#endif
if (--m_allocations.Ptr[i] == 0) // if this was the last allocation in the block,
{
if (i == blocks - 1) // if it's the last block,
{
m_nextByteOffset = 0; // just forget that we allocated anything from it, but keep it for later allocations
}
else
{
AllocatorManager.Free(m_handle, (void *)m_blocks[i]); // delete the block
m_blocks.RemoveAtSwapBack(i); // and forget we ever saw it
m_allocations.RemoveAtSwapBack(i); // and your dog toto, too
}
}
return;
}
}
#if ENABLE_UNITY_COLLECTIONS_CHECKS
throw new ArgumentException($"Cannot free this pointer from BlockAllocator: can't be found in any block.");
#endif
}
