Ejemplo n.º 1
0
        public void testReader()
        {
            G2Network.Instance.SelfAddress = System.Net.IPAddress.Parse("127.0.0.1");
            G2Packet lni = Settings.SmartLNIPacket();
            G2Packet na  = new G2PacketNA(new NodeAddress(System.Net.IPAddress.Parse("127.0.0.1"), 6345));

            for (int i = 0; i < 300; i++)
            {
                lni.AddChild(na);
            }
            lni.FinalizePacket();
            G2Log.Write(lni.ToString());
            ByteBuffer     b      = lni.ToBuffer();
            G2PacketReader reader = new G2PacketReader(new NodePeer(System.Net.IPAddress.Parse("127.0.0.1"), 6346, 0, false));
            int            nb     = 3;

            byte[][] bytes = new byte[nb][];
            int      start = 0;
            int      div   = b.Length / nb;

            for (int i = 0; i < nb; i++)
            {
                if (i == nb - 1)
                {
                    div += b.Length % nb;
                }
                bytes [i] = new byte[div];
                Array.Copy(b.Bytes, start, bytes [i], 0, div);
                start += div;
            }


            for (int i = 0; i < nb; i++)
            {
                bool enough = reader.Read(bytes [i], bytes[i].Length);
                if (enough)
                {
                    G2Log.Write("PacketReader Test Success");
                    break;
                }
            }
            G2Packet   lni2 = Settings.SmartLNIPacket();
            ByteBuffer b2   = lni2.ToBuffer();
            bool       succ = reader.Read(b2.Bytes, b2.DataOffset);

            if (succ)
            {
                G2Log.Write("PacketReader Test Unit Packet Success");
            }
            else
            {
                G2Log.Write("PacketReader Test Unit Packet FAILED");
            }


            b.Append(b2);
            succ = reader.Read(b.Bytes, b.DataOffset);
            if (succ)
            {
                G2Log.Write("PacketReader Test Sequential Packet Success");
            }
            else
            {
                G2Log.Write("PacketReader TEst Sequential Packet FAILED");
            }
        }
Ejemplo n.º 2
0
        private int ReadPacket(MemoryStream stream, out G2Packet pack)
        {
            Header h = null;

            try
            {
                h = Header.ReadHeader(stream);
            }
            catch (Exception e) {
                throw e;
            }
            int packLength = (int)(h.PayloadLength + h.HeaderLength);

            // if stream is not enough big to contain all the packet we need to read more
            if (packLength > stream.Length)
            {
                throw new NotEnoughDataException("Not enough data in buffer");
            }

            pack = G2PacketType.getPacketByHeader(h);
            // Set the remote host into packet for further analysis
            pack.RemotePeer = this.peer;

            // we have a unknown packet so we just read till the end of the packet
            if (pack.type == G2PacketType.DEFAULT)
            {
                // anyway, read & store the bytes
                return((int)(h.HeaderLength + pack.ReadPayload(stream, h.PayloadLength)));
            }

            // we have read header, now we calculate how much byte we need to read more (children + payload)
            int  byteToRead       = h.PayloadLength;
            int  byteRead         = 0;
            bool endOfChildStream = false;

            if (h.compound)
            {
                while (true)
                {
                    G2Packet childPacket;
                    try
                    {
                        int bRead = ReadPacket(stream, out childPacket);
                        //Debug.Assert(bRead == childPacket.getTotalPacketLength(),
                        //"ReadPacket:ChildPacket " + childPacket.type + "  bRead = " + bRead + " vs " + childPacket.getTotalPacketLength());
                    }
                    catch (BigEndianPacketException e)
                    {
                        throw e;
                    }
                    catch (EndOfStreamException e)
                    {
                        byteRead += 1;
                        break;
                    }

                    pack.AddChild(childPacket);
                    byteRead += childPacket.getTotalPacketLength();
                    // root packet does NOT have a payload
                    if (byteRead == byteToRead)
                    {
                        endOfChildStream = true;
                        break;
                    }
                }
            }
            // have to count the remaining bytes, because length in header includes child packets.
            if (!endOfChildStream && (byteRead < byteToRead))
            {
                byteRead += pack.ReadPayload(stream, byteToRead - byteRead);
            }


            // return total read byte number
            return((int)(byteRead + h.HeaderLength));
        }