/// <summary>
/// Encodes a message object.
/// The format looks as follows: 28 bit P2P version, 4 bit message type, 32 bit message ID, 8 bit message command,
/// 160 bit senderSocket ID, 16 bit senderSocket TCP port, 16 bit senderSocket UDP port, 160 bit recipientSocket ID, 32 bit content types, 8 bit options.
/// In total, the header is of size 58 bytes.
/// </summary>
/// <param name="buffer">The buffer to encode to.</param>
/// <param name="message">The message with the header that will be encoded.</param>
public static void EncodeHeader(AlternativeCompositeByteBuf buffer, Message message)
{
// TODO add log statemet, also in Java version
int versionAndType = message.Version << 4 | ((int)message.Type & Utils.Utils.Mask0F); // TODO check if ordinal works
buffer.WriteInt(versionAndType); // 4
buffer.WriteInt(message.MessageId); // 8
buffer.WriteByte(message.Command); // 9
buffer.WriteBytes(message.Sender.PeerId.ToByteArray()); // 29
buffer.WriteShort((short)message.Sender.TcpPort); // 31
buffer.WriteShort((short)message.Sender.UdpPort); // 33
buffer.WriteBytes(message.Recipient.PeerId.ToByteArray()); // 53
buffer.WriteInt(EncodeContentTypes(message.ContentTypes)); // 57
buffer.WriteByte((sbyte)(message.Sender.Options << 4 | message.Options)); // 58 // TODO check if works
}
/// <summary>
/// Encodes a message object.
/// The format looks as follows: 28 bit P2P version, 4 bit message type, 32 bit message ID, 8 bit message command,
/// 160 bit senderSocket ID, 16 bit senderSocket TCP port, 16 bit senderSocket UDP port, 160 bit recipientSocket ID, 32 bit content types, 8 bit options.
/// In total, the header is of size 58 bytes.
/// </summary>
/// <param name="buffer">The buffer to encode to.</param>
/// <param name="message">The message with the header that will be encoded.</param>
public static void EncodeHeader(AlternativeCompositeByteBuf buffer, Message message)
{
// TODO add log statemet, also in Java version
int versionAndType = message.Version << 4 | ((int)message.Type & Utils.Utils.Mask0F); // TODO check if ordinal works
buffer.WriteInt(versionAndType); // 4
buffer.WriteInt(message.MessageId); // 8
buffer.WriteByte(message.Command); // 9
buffer.WriteBytes(message.Sender.PeerId.ToByteArray()); // 29
buffer.WriteShort((short) message.Sender.TcpPort); // 31
buffer.WriteShort((short) message.Sender.UdpPort); // 33
buffer.WriteBytes(message.Recipient.PeerId.ToByteArray()); // 53
buffer.WriteInt(EncodeContentTypes(message.ContentTypes)); // 57
buffer.WriteByte((sbyte) (message.Sender.Options << 4 | message.Options)); // 58 // TODO check if works
}
/// <summary>
/// Converts data to a byte buffer. The first two bytes contain the size of this simple bloom filter. Thus, the bloom filter can only be of length 65536.
/// </summary>
/// <param name="buffer"></param>
public void ToByteBuffer(AlternativeCompositeByteBuf buffer)
{
sbyte[] tmp = BitArray.ToByteArray();
int currentByteArraySize = tmp.Length;
buffer.WriteShort((short)(_byteArraySize + SizeHeader));
buffer.WriteInt(ExpectedElements);
buffer.WriteBytes(tmp);
buffer.WriteZero(_byteArraySize - currentByteArraySize);
}
public void TestEncodeShort()
{
AlternativeCompositeByteBuf buffer = AlternativeCompositeByteBuf.CompBuffer();
buffer.WriteShort(short.MinValue); // -32,768
buffer.WriteShort(-256);
buffer.WriteShort(-255);
buffer.WriteShort(-128);
buffer.WriteShort(-127);
buffer.WriteShort(-1);
buffer.WriteShort(0);
buffer.WriteShort(1);
buffer.WriteShort(127);
buffer.WriteShort(128);
buffer.WriteShort(255);
buffer.WriteShort(256);
buffer.WriteShort(short.MaxValue); // 32,767
var bytes = InteropUtil.ExtractBytes(buffer);
bool interopResult = JarRunner.WriteBytesAndTestInterop(bytes);
Assert.IsTrue(interopResult);
}
