bool ObRange::intersect(const ObRange& r) const
{
// suppose range.start_key_ <= range.end_key_
if (table_id_ != r.table_id_) return false;
if (empty() || r.empty()) return false;
if (is_whole_range() || r.is_whole_range()) return true;
ObString lkey, rkey;
bool ret = false;
int8_t include_lborder = 0;
int8_t include_rborder = 0;
bool min_value = false;
int cmp = compare_with_endkey(r);
if (cmp < 0)
{
lkey = end_key_;
rkey = r.start_key_;
include_lborder = (border_flag_.inclusive_end());
include_rborder = (r.border_flag_.inclusive_start());
min_value = (r.border_flag_.is_min_value());
}
else if (cmp > 0)
{
lkey = r.end_key_;
rkey = start_key_;
include_lborder = (r.border_flag_.inclusive_end());
include_rborder = (border_flag_.inclusive_start());
min_value = (border_flag_.is_min_value());
}
else
{
ret = true;
}
if (cmp != 0)
{
if (min_value) ret = true;
else if (lkey < rkey) ret = false;
else if (lkey > rkey) ret = true;
else ret = (include_lborder != 0 && include_rborder != 0);
}
return ret;
}
int TabletManagerIniter::create_tablet(const ObRange& range,
const ObSSTableId& sst_id, bool serving,
const int64_t version)
{
int ret = OB_SUCCESS;
if (range.empty())
{
TBSYS_LOG(ERROR, "create_tablet error, input range is empty.");
ret = OB_INVALID_ARGUMENT;
}
if (OB_SUCCESS == ret)
{
ObTablet* tablet = NULL;
// find tablet if exist?
ObMultiVersionTabletImage &image = tablet_mgr_.get_serving_tablet_image() ;
ret = image.acquire_tablet(range, ObMultiVersionTabletImage::SCAN_FORWARD, version, tablet);
if (OB_SUCCESS == ret)
{
TBSYS_LOG(ERROR, "tablet already exists! dump input and exist:");
range.hex_dump(TBSYS_LOG_LEVEL_ERROR);
tablet->get_range().hex_dump(TBSYS_LOG_LEVEL_ERROR);
ret = OB_ERROR;
tablet = NULL;
image.release_tablet(tablet);
}
else
{
ret = image.alloc_tablet_object(range, version, tablet);
if (OB_SUCCESS == ret)
{
ret = tablet->add_sstable_by_id(sst_id);
}
if (OB_SUCCESS == ret)
{
tablet->set_disk_no(sst_id.sstable_file_id_ & DISK_NO_MASK);
ret = image.add_tablet(tablet, true, true);
}
}
}
return ret;
}