internal void ReturnBlocks()

in src/RecyclableMemoryStreamManager.cs [571:605]
31 lines of code
8 McCabe index (conditional complexity)

        internal void ReturnBlocks(List<byte[]> blocks, Guid id, string tag)
        {
            if (blocks == null)
            {
                throw new ArgumentNullException(nameof(blocks));
            }

            long bytesToReturn = (long)blocks.Count * (long)this.BlockSize;
            Interlocked.Add(ref this.smallPoolInUseSize, -bytesToReturn);

            foreach (var block in blocks)
            {
                if (block == null || block.Length != this.BlockSize)
                {
                    throw new ArgumentException($"{nameof(blocks)} contains buffers that are not {nameof(BlockSize)} in length.", nameof(blocks));
                }
            }

            foreach (var block in blocks)
            {
                if (this.MaximumFreeSmallPoolBytes == 0 || this.SmallPoolFreeSize < this.MaximumFreeSmallPoolBytes)
                {
                    Interlocked.Add(ref this.smallPoolFreeSize, this.BlockSize);
                    this.smallPool.Push(block);
                }
                else
                {
                    ReportBufferDiscarded(id, tag, Events.MemoryStreamBufferType.Small, Events.MemoryStreamDiscardReason.EnoughFree);
                    break;
                }
            }

            ReportUsageReport(this.smallPoolInUseSize, this.smallPoolFreeSize, this.LargePoolInUseSize,
                              this.LargePoolFreeSize);
        }