public IByteBuffer Cumulate(IByteBufferAllocator alloc, IByteBuffer cumulation, IByteBuffer input)
{
if (!cumulation.IsReadable())
{
_ = cumulation.Release();
return(input);
}
CompositeByteBuffer composite = null;
try
{
composite = cumulation as CompositeByteBuffer;
if (composite is object && 0u >= (uint)(cumulation.ReferenceCount - 1))
{
// Writer index must equal capacity if we are going to "write"
// new components to the end
if (composite.WriterIndex != composite.Capacity)
{
_ = composite.AdjustCapacity(composite.WriterIndex);
}
}
else
{
composite = alloc.CompositeBuffer(int.MaxValue).AddFlattenedComponents(true, cumulation);
}
_ = composite.AddFlattenedComponents(true, input);
input = null;
return(composite);
}
finally
{
if (input is object)
{
// We must release if the ownership was not transferred as otherwise it may produce a leak
_ = input.Release();
// Also release any new buffer allocated if we're not returning it
if (composite is object && composite != cumulation)
{
_ = composite.Release();
}
}
}
}