@Override
    public void writeUInt64(int fieldNumber, long value, boolean repeated) throws IOException
    {
        tail = sink.writeVarInt64(
                value,
                this,
                sink.writeVarInt32(
                        makeTag(fieldNumber, WIRETYPE_VARINT),
                        this,
                        tail));

        /*
         * tail = writeTagAndRawVarInt64( makeTag(fieldNumber, WIRETYPE_VARINT), value, this, tail);
         */
    }
Resets this output for re-use.
protostuff-core/src/main/java/io/protostuff/ProtostuffOutput.java