System.IO.BACnet.BacnetClient.PerformDefaultSegmentHandling C# (CSharp) Méthode

        private void PerformDefaultSegmentHandling(BacnetClient sender, BacnetAddress adr, BacnetPduTypes type, BacnetConfirmedServices service, byte invoke_id, BacnetMaxSegments max_segments, BacnetMaxAdpu max_adpu, byte sequence_number, bool first, bool more_follows, byte[] buffer, int offset, int length)
        {
            if (first)
            {
                //clear any leftover segments
                m_segments.Clear();

                //copy buffer + encode new adpu header
                type &= ~BacnetPduTypes.SEGMENTED_MESSAGE;
                int adpu_header_len = 3;
                if ((type & BacnetPduTypes.PDU_TYPE_MASK) == BacnetPduTypes.PDU_TYPE_CONFIRMED_SERVICE_REQUEST) adpu_header_len = 4;
                byte[] copy = new byte[length + adpu_header_len];
                Array.Copy(buffer, offset, copy, adpu_header_len, length);
                if ((type & BacnetPduTypes.PDU_TYPE_MASK) == BacnetPduTypes.PDU_TYPE_CONFIRMED_SERVICE_REQUEST)
                    APDU.EncodeConfirmedServiceRequest(new EncodeBuffer(copy, 0), type, service, max_segments, max_adpu, invoke_id, 0, 0);
                else
                    APDU.EncodeComplexAck(new EncodeBuffer(copy, 0), type, service, invoke_id, 0, 0);
                m_segments.AddLast(copy);       //doesn't include BVLC or NPDU
            }
            else
            {
                //copy only content part
                byte[] copy = new byte[length];
                Array.Copy(buffer, offset, copy, 0, copy.Length);
                m_segments.AddLast(copy);
            }

            //process when finished
            if (!more_follows)
            {
                //assemble whole part
                byte[] apdu_buffer = AssembleSegments();
                m_segments.Clear();

                //process
                ProcessApdu(adr, type, apdu_buffer, 0, apdu_buffer.Length);
            }
        }