InitChunk(byte[] buf, int off) {
super(buf, off);
if (_type != Chunk.CHUNK_TYPE_INIT) throw new RuntimeException("This is not an INIT chunk!");
if (_len != INIT_CHUNK_LENGTH)
throw new RuntimeException("Invalid chunk length field for INIT chunk!");
_validation = ByteConverter.from4BytesToUnsignedInt(_buf, _off + Chunk.CHUNK_HEADER_SIZE);
_initialControlTSN =
ByteConverter.from4BytesToUnsignedInt(_buf, _off + Chunk.CHUNK_HEADER_SIZE + 4);
_initialRelSeqTSN =
ByteConverter.from4BytesToUnsignedInt(_buf, _off + Chunk.CHUNK_HEADER_SIZE + 8);
_initialUnrelSeqTSN =
ByteConverter.from4BytesToUnsignedInt(_buf, _off + Chunk.CHUNK_HEADER_SIZE + 12);
_initialRelUnseqID =
ByteConverter.from4BytesToUnsignedInt(_buf, _off + Chunk.CHUNK_HEADER_SIZE + 16);
_initialUnrelUnseqID =
ByteConverter.from4BytesToUnsignedInt(_buf, _off + Chunk.CHUNK_HEADER_SIZE + 20);
}
void write(byte[] buf, int off) {
if (_buf != null) throw new RuntimeException("Can write only locally built INIT chunks!");
if (buf == null) throw new IllegalArgumentException("Invalid argument!");
if (buf.length < off + INIT_CHUNK_LENGTH)
throw new RuntimeException("Not enough space in destination buffer!");
writeHeader(buf, off);
ByteConverter.fromUnsignedIntTo4Bytes(_validation, buf, off + Chunk.CHUNK_HEADER_SIZE);
ByteConverter.fromUnsignedIntTo4Bytes(
_initialControlTSN, buf, off + Chunk.CHUNK_HEADER_SIZE + 4);
ByteConverter.fromUnsignedIntTo4Bytes(
_initialRelSeqTSN, buf, off + Chunk.CHUNK_HEADER_SIZE + 8);
ByteConverter.fromUnsignedIntTo4Bytes(
_initialUnrelSeqTSN, buf, off + Chunk.CHUNK_HEADER_SIZE + 12);
ByteConverter.fromUnsignedIntTo4Bytes(
_initialRelUnseqID, buf, off + Chunk.CHUNK_HEADER_SIZE + 16);
ByteConverter.fromUnsignedIntTo4Bytes(
_initialUnrelUnseqID, buf, off + Chunk.CHUNK_HEADER_SIZE + 20);
}