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https://github.com/scylladb/scylladb.git
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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
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
/*
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* Copyright (C) 2021-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 "mutation_fragment_v2.hh"
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template<typename Consumer>
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concept FlatMutationReaderConsumer =
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requires(Consumer c, mutation_fragment mf) {
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{ c(std::move(mf)) } -> std::same_as<stop_iteration>;
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} || requires(Consumer c, mutation_fragment mf) {
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{ c(std::move(mf)) } -> std::same_as<future<stop_iteration>>;
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};
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template<typename T>
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concept FlattenedConsumer =
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StreamedMutationConsumer<T> && requires(T obj, const dht::decorated_key& dk) {
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{ obj.consume_new_partition(dk) };
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{ obj.consume_end_of_partition() };
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};
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template<typename T>
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concept FlattenedConsumerFilter =
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requires(T filter, const dht::decorated_key& dk, const mutation_fragment& mf) {
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{ filter(dk) } -> std::same_as<bool>;
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{ filter(mf) } -> std::same_as<bool>;
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{ filter.on_end_of_stream() } -> std::same_as<void>;
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};
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template<typename Consumer>
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concept FlatMutationReaderConsumerV2 =
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requires(Consumer c, mutation_fragment_v2 mf) {
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{ c(std::move(mf)) } -> std::same_as<stop_iteration>;
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} || requires(Consumer c, mutation_fragment_v2 mf) {
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{ c(std::move(mf)) } -> std::same_as<future<stop_iteration>>;
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};
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template<typename Consumer>
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concept MutationConsumer =
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requires(Consumer c, mutation m) {
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{ c(std::move(m)) } -> std::same_as<stop_iteration>;
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} || requires(Consumer c, mutation m) {
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{ c(std::move(m)) } -> std::same_as<future<stop_iteration>>;
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};
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template<typename T>
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concept FlattenedConsumerV2 =
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StreamedMutationConsumerV2<T> && requires(T obj, const dht::decorated_key& dk) {
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{ obj.consume_new_partition(dk) };
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{ obj.consume_end_of_partition() };
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};
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template<typename T>
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concept FlattenedConsumerFilterV2 =
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requires(T filter, const dht::decorated_key& dk, const mutation_fragment_v2& mf) {
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{ filter(dk) } -> std::same_as<bool>;
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{ filter(mf) } -> std::same_as<bool>;
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{ filter.on_end_of_stream() } -> std::same_as<void>;
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};
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