public void readFrom(DataInput in) throws Exception {
type = in.readByte();
switch (type) {
case DATA:
seqno = Bits.readLong(in);
conn_id = in.readShort();
first = in.readBoolean();
break;
case ACK:
seqno = Bits.readLong(in);
conn_id = in.readShort();
break;
case SEND_FIRST_SEQNO:
seqno = Bits.readLong(in);
break;
}
}
public void writeTo(DataOutput out) throws Exception {
out.writeByte(type);
switch (type) {
case DATA:
Bits.writeLong(seqno, out);
out.writeShort(conn_id);
out.writeBoolean(first);
break;
case ACK:
Bits.writeLong(seqno, out);
out.writeShort(conn_id);
break;
case SEND_FIRST_SEQNO:
Bits.writeLong(seqno, out);
break;
}
}
public final int size() {
int retval = Global.BYTE_SIZE; // type
switch (type) {
case DATA:
retval +=
Bits.size(seqno) // seqno
+ Global.SHORT_SIZE // conn_id
+ Global.BYTE_SIZE; // first
break;
case ACK:
retval += Bits.size(seqno) + Global.SHORT_SIZE; // conn_id
break;
case SEND_FIRST_SEQNO:
retval += Bits.size(seqno);
break;
}
return retval;
}
public int size() {
return Global.BYTE_SIZE + Bits.size(seqno) + Global.BYTE_SIZE; // type + seqno + flush_ack
}
public void readFrom(DataInput in) throws Exception {
type = in.readByte();
seqno = Bits.readLong(in);
flush_ack = in.readBoolean();
}
public void writeTo(DataOutput out) throws Exception {
out.writeByte(type);
Bits.writeLong(seqno, out);
out.writeBoolean(flush_ack);
}