mirror of
https://github.com/scylladb/scylladb.git
synced 2026-05-29 19:21:01 +00:00
6ca0464af5
We want to start tracking the memory consumption of mutation fragments. For this we need schema and permit during construction, and on each modification, so the memory consumption can be recalculated and pass to the permit. In this patch we just add the new parameters and go through the insane churn of updating all call sites. They will be used in the next patch.
75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
/*
|
|
* Copyright (C) 2017 ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* This file is part of Scylla.
|
|
*
|
|
* Scylla is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Scylla is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "mutation_fragment.hh"
|
|
#include "converting_mutation_partition_applier.hh"
|
|
|
|
// A StreamedMutationTransformer which transforms the stream to a different schema
|
|
class schema_upgrader {
|
|
schema_ptr _prev;
|
|
schema_ptr _new;
|
|
std::optional<reader_permit> _permit;
|
|
private:
|
|
row transform(row&& r, column_kind kind) {
|
|
row new_row;
|
|
r.for_each_cell([&] (column_id id, atomic_cell_or_collection& cell) {
|
|
const column_definition& col = _prev->column_at(kind, id);
|
|
const column_definition* new_col = _new->get_column_definition(col.name());
|
|
if (new_col) {
|
|
converting_mutation_partition_applier::append_cell(new_row, kind, *new_col, col, std::move(cell));
|
|
}
|
|
});
|
|
return new_row;
|
|
}
|
|
public:
|
|
schema_upgrader(schema_ptr s)
|
|
: _new(std::move(s))
|
|
{ }
|
|
schema_ptr operator()(schema_ptr old) {
|
|
_prev = std::move(old);
|
|
return _new;
|
|
}
|
|
mutation_fragment consume(static_row&& row) {
|
|
return mutation_fragment(*_new, std::move(*_permit), static_row(transform(std::move(row.cells()), column_kind::static_column)));
|
|
}
|
|
mutation_fragment consume(clustering_row&& row) {
|
|
return mutation_fragment(*_new, std::move(*_permit), clustering_row(row.key(), row.tomb(), row.marker(),
|
|
transform(std::move(row.cells()), column_kind::regular_column)));
|
|
}
|
|
mutation_fragment consume(range_tombstone&& rt) {
|
|
return mutation_fragment(*_new, std::move(*_permit), std::move(rt));
|
|
}
|
|
mutation_fragment consume(partition_start&& ph) {
|
|
return mutation_fragment(*_new, std::move(*_permit), std::move(ph));
|
|
}
|
|
mutation_fragment consume(partition_end&& eop) {
|
|
return mutation_fragment(*_new, std::move(*_permit), std::move(eop));
|
|
}
|
|
mutation_fragment operator()(mutation_fragment&& mf) {
|
|
_permit = mf.permit();
|
|
return std::move(mf).consume(*this);
|
|
}
|
|
};
|
|
|
|
static_assert(StreamedMutationTranformer<schema_upgrader>);
|