Examples with UInt64 org.apache.tuweni.units.bigints.UInt64 used on opensource projects

Example 26 with UInt64

use of org.apache.tuweni.units.bigints.UInt64 in project besu by hyperledger.

the class PingPacketData method readFrom.

public static PingPacketData readFrom(final RLPInput in) {
    in.enterList();
    // The first element signifies the "version", but this value is ignored as of EIP-8
    in.readBigIntegerScalar();
    Optional<Endpoint> from = Optional.empty();
    Optional<Endpoint> to = Optional.empty();
    if (in.nextIsList()) {
        to = Endpoint.maybeDecodeStandalone(in);
        // https://github.com/ethereum/devp2p/blob/master/discv4.md#ping-packet-0x01
        if (in.nextIsList()) {
            // if there are two, the first is the from address, next is the to
            // address
            from = to;
            to = Endpoint.maybeDecodeStandalone(in);
        }
    } else {
        throw new DevP2PException("missing address in ping packet");
    }
    final long expiration = in.readLongScalar();
    UInt64 enrSeq = null;
    if (!in.isEndOfCurrentList()) {
        try {
            enrSeq = UInt64.valueOf(in.readBigIntegerScalar());
            LOG.debug("read PING enr as long scalar");
        } catch (MalformedRLPInputException malformed) {
            LOG.debug("failed to read PING enr as scalar, trying to read bytes instead");
            enrSeq = UInt64.fromBytes(in.readBytes());
        }
    }
    in.leaveListLenient();
    return new PingPacketData(from, to.get(), expiration, enrSeq);
}

Example 27 with UInt64

use of org.apache.tuweni.units.bigints.UInt64 in project besu by hyperledger.

the class PongPacketData method legacyReadFrom.

/**
 * Used by test classes to read legacy encodes of Pongs which used a byte array for the ENR field
 *
 * @deprecated Only to be used by internal tests to confirm backward compatibility.
 * @param in input stream being read from
 * @return PongPacketData parsed from input, using legacy encode
 */
@Deprecated
public static PongPacketData legacyReadFrom(final RLPInput in) {
    in.enterList();
    final Endpoint to = Endpoint.decodeStandalone(in);
    final Bytes hash = in.readBytes();
    final long expiration = in.readLongScalar();
    UInt64 enrSeq = null;
    if (!in.isEndOfCurrentList()) {
        enrSeq = UInt64.fromBytes(in.readBytes());
    }
    in.leaveListLenient();
    return new PongPacketData(to, hash, expiration, enrSeq);
}