1553   SequenceNumber snapshot;  in GetImpl()  local
1554   if (read_options.snapshot != nullptr) {  in GetImpl()
1557       snapshot = get_impl_options.callback->max_visible_seq();  in GetImpl()
1559       snapshot =  in GetImpl()
1560           reinterpret_cast<const SnapshotImpl*>(read_options.snapshot)->number_;  in GetImpl()
1568     snapshot = last_seq_same_as_publish_seq_  in GetImpl()
1576       get_impl_options.callback->Refresh(snapshot);  in GetImpl()
1587       snapshot = get_impl_options.callback->max_visible_seq();  in GetImpl()
1601   LookupKey lkey(key, snapshot, read_options.timestamp);  in GetImpl()
1834     T* cf_list, SequenceNumber* snapshot) {  in MultiCFSnapshot()  argument
1844     if (read_options.snapshot != nullptr) {  in MultiCFSnapshot()
1853       *snapshot =  in MultiCFSnapshot()
1854           static_cast<const SnapshotImpl*>(read_options.snapshot)->number_;  in MultiCFSnapshot()
1856         *snapshot = std::max(*snapshot, callback->max_visible_seq());  in MultiCFSnapshot()
1869       *snapshot = last_seq_same_as_publish_seq_  in MultiCFSnapshot()
1895       if (read_options.snapshot == nullptr) {  in MultiCFSnapshot()
1902         *snapshot = last_seq_same_as_publish_seq_  in MultiCFSnapshot()
1906         *snapshot = reinterpret_cast<const SnapshotImpl*>(read_options.snapshot)  in MultiCFSnapshot()
1918         if (read_options.snapshot != nullptr || last_try) {  in MultiCFSnapshot()
1932           if (seq > *snapshot) {  in MultiCFSnapshot()
2142   if (callback && read_options.snapshot == nullptr) {  in MultiGetWithCallback()
2171     SuperVersion* super_version, SequenceNumber snapshot,  in MultiGetImpl()  argument
2186                         batch_size, snapshot);  in MultiGetImpl()
2562     auto snapshot = read_options.snapshot != nullptr  in NewIterator()  local
2563                         ? read_options.snapshot->GetSequenceNumber()  in NewIterator()
2565     result = NewIteratorImpl(read_options, cfd, snapshot, read_callback);  in NewIterator()
2572                                             SequenceNumber snapshot,  in NewIteratorImpl()  argument
2621       env_, read_options, *cfd->ioptions(), sv->mutable_cf_options, snapshot,  in NewIteratorImpl()
2624       read_options.snapshot != nullptr ? false : allow_refresh);  in NewIteratorImpl()
2628                           db_iter->GetRangeDelAggregator(), snapshot);  in NewIteratorImpl()
2668     auto snapshot = read_options.snapshot != nullptr  in NewIterators()  local
2669                         ? read_options.snapshot->GetSequenceNumber()  in NewIterators()
2675           NewIteratorImpl(read_options, cfd, snapshot, read_callback));  in NewIterators()
2710   SnapshotImpl* snapshot =  in GetSnapshotImpl()  local
2715   return snapshot;  in GetSnapshotImpl()