System.Net.ConnectStream.FillFromBufferedData C# (CSharp) Method

        private int FillFromBufferedData(byte [] buffer, ref int offset, ref int size ) {
            //
            // if there's no stuff in our read buffer just return 0
            //
            if (m_ReadBufferSize == 0) {
                return 0;
            }

            //
            // There's stuff in our read buffer. Figure out how much to take,
            // which is the minimum of what we have and what we're to read,
            // and copy it out.
            //
            int BytesTransferred = Math.Min(size, m_ReadBufferSize);

            GlobalLog.Print("ConnectStream#" + ValidationHelper.HashString(this) + "::FillFromBufferedData() Filling bytes: " + BytesTransferred.ToString());

            Buffer.BlockCopy(
                m_ReadBuffer,
                m_ReadOffset,
                buffer,
                offset,
                BytesTransferred);

            // Update our internal read buffer state with what we took.

            m_ReadOffset += BytesTransferred;
            m_ReadBufferSize -= BytesTransferred;

            // If the read buffer size has gone to 0, null out our pointer
            // to it so maybe it'll be garbage-collected faster.

            if (m_ReadBufferSize == 0) {
                m_ReadBuffer = null;
            }

            // Update what we're to read and the caller's offset.

            size -= BytesTransferred;
            offset += BytesTransferred;

            return BytesTransferred;
        }