public void mapSegment(LayerWriteGroup tx, int use_gen,
RecordKey start_key, RecordKey end_key, IRegion reader)
{
if (! (tx.type == LayerWriteGroup.WriteGroupType.DISK_ATOMIC_NOFLUSH ||
tx.type == LayerWriteGroup.WriteGroupType.DISK_ATOMIC_FLUSH)) {
throw new Exception("NewUnusedSegment.mapSegment() must be provided an ATOMIC write group");
}
// remove the pending entry
RecordKey key = new RecordKey().appendParsedKey(".ROOT/FREELIST/PENDING");
key.appendKeyPart(new RecordKeyType_Long(reader.getStartAddress()));
tx.setValue(key, RecordUpdate.DeletionTombstone());
// add the new map
tx.mylayer.rangemapmgr.mapGenerationToRegion(tx, use_gen, start_key, end_key, reader);
}