/// <summary>
/// Creates a peer address from a continuous byte array. This is useful if you don't know the size beforehand.
/// The new offset can be accessed through the Offset property.
/// </summary>
/// <param name="me">The serialized array.</param>
/// <param name="initialOffset">The offset where to start.</param>
public PeerAddress(sbyte[] me, int initialOffset)
{
// get the peer ID, this is independent of the type
long offset = initialOffset;
// get the options
int options = me[offset++] & Utils.Utils.MaskFf;
IsIPv6 = (options & Net6) > 0; // TODO static methods could be used instead
IsFirewalledUdp = (options & FirewallUdp) > 0;
IsFirewalledTcp = (options & FirewallTcp) > 0;
IsRelayed = (options & Relayed) > 0;
// get the relays
int relays = me[offset++] & Utils.Utils.MaskFf;
// first 3 bits are the size
RelaySize = (relays >> TypeBitSize) & Mask07;
// last 5 bits indicate if IPv6 or IPv4
var b = (byte)(relays & Mask1F); // TODO check if works (2x)
_relayType = new BitArray(b);
// get the ID
var tmp = new sbyte[Number160.ByteArraySize];
Array.Copy(me, offset, tmp, 0, Number160.ByteArraySize);
PeerId = new Number160(tmp);
offset += Number160.ByteArraySize;
PeerSocketAddress = PeerSocketAddress.Create(me, IsIPv4, offset);
offset = PeerSocketAddress.Offset;
if (RelaySize > 0)
{
PeerSocketAddresses = new List <PeerSocketAddress>(RelaySize);
for (int i = 0; i < RelaySize; i++)
{
var psa = PeerSocketAddress.Create(me, !_relayType.Get(i), offset);
PeerSocketAddresses.Add(psa);
offset = psa.Offset;
}
}
else
{
PeerSocketAddresses = EmptyPeerSocketAddresses;
}
Size = offset - initialOffset;
Offset = offset;
_hashCode = PeerId.GetHashCode();
}
/// <summary>
/// Creates a peer address from a byte buffer.
/// </summary>
/// <param name="buffer">The channel buffer to read from.</param>
public PeerAddress(AlternativeCompositeByteBuf buffer)
{
long readerIndex = buffer.ReaderIndex;
// get the type
int options = buffer.ReadByte();
IsIPv6 = (options & Net6) > 0;
IsFirewalledUdp = (options & FirewallUdp) > 0;
IsFirewalledTcp = (options & FirewallTcp) > 0;
IsRelayed = (options & Relayed) > 0;
// get the relays
int relays = buffer.ReadByte();
RelaySize = (relays >> TypeBitSize) & Mask07;
var b = (byte)(relays & Mask1F); // TODO check if works (2x)
_relayType = new BitArray(b);
// get the ID
var me = new sbyte[Number160.ByteArraySize];
buffer.ReadBytes(me);
PeerId = new Number160(me);
PeerSocketAddress = PeerSocketAddress.Create(buffer, IsIPv4);
if (RelaySize > 0)
{
PeerSocketAddresses = new List <PeerSocketAddress>(RelaySize);
for (int i = 0; i < RelaySize; i++)
{
PeerSocketAddresses.Add(PeerSocketAddress.Create(buffer, !_relayType.Get(i)));
}
}
else
{
PeerSocketAddresses = EmptyPeerSocketAddresses;
}
Size = buffer.ReaderIndex - readerIndex;
Offset = -1; // not used here
_hashCode = PeerId.GetHashCode();
}
