c5e4bf51bd
Move mutation-related files to a new mutation/ directory. The names are kept in the global namespace to reduce churn; the names are unambiguous in any case. mutation_reader remains in the readers/ module. mutation_partition_v2.cc was missing from CMakeLists.txt; it's added in this patch. This is a step forward towards librarization or modularization of the source base. Closes #12788
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/*
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* Copyright (C) 2021 ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include "clustering_ranges_walker.hh"
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#include "mutation/mutation_fragment.hh"
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template<typename T>
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concept SplitterFragmentConsumer = std::invocable<T, mutation_fragment>;
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/// Takes a stream of range tombstone fragments and trims them to the boundaries of clustering key restrictions.
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class range_tombstone_splitter {
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clustering_ranges_walker& _walker;
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range_tombstone_stream _rts;
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public:
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range_tombstone_splitter(const schema& s, reader_permit permit, clustering_ranges_walker& w)
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: _walker(w)
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, _rts(s, std::move(permit))
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{ }
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template<SplitterFragmentConsumer C>
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void flush(position_in_partition_view pos, C consumer) {
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while (auto rto = _rts.get_next(pos)) {
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consumer(std::move(*rto));
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}
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}
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template<SplitterFragmentConsumer C>
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void consume(range_tombstone rt, C consumer) {
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if (auto rto = _walker.split_tombstone(std::move(rt), _rts)) {
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_rts.apply(std::move(*rto));
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}
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flush(rt.position(), std::move(consumer));
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}
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};
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