1d84a254c0
The flat_mutation_reader files were conflated and contained multiple readers, which were not strictly necessary. Splitting optimizes both iterative compilation times, as touching rarely used readers doesn't recompile large chunks of codebase. Total compilation times are also improved, as the size of flat_mutation_reader.hh and flat_mutation_reader_v2.hh have been reduced and those files are included by many file in the codebase. With changes real 29m14.051s user 168m39.071s sys 5m13.443s Without changes real 30m36.203s user 175m43.354s sys 5m26.376s Closes #10194
59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
/*
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* Copyright (C) 2022-present 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 "schema_fwd.hh"
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#include "dht/i_partitioner_fwd.hh"
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#include <functional>
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#include <optional>
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#include <seastar/core/io_priority_class.hh>
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#include "readers/flat_mutation_reader_fwd.hh"
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#include "tracing/trace_state.hh"
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using namespace seastar;
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class flat_mutation_reader_v2;
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class reader_permit;
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class mutation_source;
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namespace query {
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class partition_slice;
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}
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// Make a reader that enables the wrapped reader to work with multiple ranges.
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///
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/// \param ranges An range vector that has to contain strictly monotonic
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/// partition ranges, such that successively calling
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/// `flat_mutation_reader::fast_forward_to()` with each one is valid.
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/// An range vector range with 0 or 1 elements is also valid.
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/// \param fwd_mr It is only respected when `ranges` contains 0 or 1 partition
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/// ranges. Otherwise the reader is created with
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/// mutation_reader::forwarding::yes.
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flat_mutation_reader_v2
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make_flat_multi_range_reader(
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schema_ptr s, reader_permit permit, mutation_source source, const dht::partition_range_vector& ranges,
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const query::partition_slice& slice, const io_priority_class& pc = default_priority_class(),
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tracing::trace_state_ptr trace_state = nullptr,
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mutation_reader::forwarding fwd_mr = mutation_reader::forwarding::yes);
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/// Make a reader that enables the wrapped reader to work with multiple ranges.
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///
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/// Generator overload. The ranges returned by the generator have to satisfy the
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/// same requirements as the `ranges` param of the vector overload.
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flat_mutation_reader_v2
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make_flat_multi_range_reader(
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schema_ptr s,
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reader_permit permit,
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mutation_source source,
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std::function<std::optional<dht::partition_range>()> generator,
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const query::partition_slice& slice,
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const io_priority_class& pc = default_priority_class(),
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tracing::trace_state_ptr trace_state = nullptr,
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mutation_reader::forwarding fwd_mr = mutation_reader::forwarding::yes);
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