} else if (_mode == NonLayered){
dflags = DiskIOProcessor::Flag(dflags | DiskIOProcessor::NonLayered);
}
+ if (!_disk_reader) {
+ _disk_reader.reset (new DiskReader (_session, name(), dflags));
+ _disk_reader->set_block_size (_session.get_block_size ());
+ _disk_reader->set_route (boost::dynamic_pointer_cast<Route> (shared_from_this()));
+ }
- _disk_reader.reset (new DiskReader (_session, name(), dflags));
- _disk_reader->set_block_size (_session.get_block_size ());
- _disk_reader->set_route (boost::dynamic_pointer_cast<Route> (shared_from_this()));
-
- _disk_writer.reset (new DiskWriter (_session, name(), dflags));
- _disk_writer->set_block_size (_session.get_block_size ());
- _disk_writer->set_route (boost::dynamic_pointer_cast<Route> (shared_from_this()));
+ if (!_disk_writer) {
+ _disk_writer.reset (new DiskWriter (_session, name(), dflags));
+ _disk_writer->set_block_size (_session.get_block_size ());
+ _disk_writer->set_route (boost::dynamic_pointer_cast<Route> (shared_from_this()));
+ }
}
void