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2eefcb37eb
this change extracts the storage class and its derived classes out into storage.cc and storage.hh. for couple reasons: - for better readability. the sstables.hh is over 1005 lines. and sstables.cc 3602 lines. it's a little bit difficult to figure out how the different parts in these sources interact with each other. for instance, with this change, it's clear some of helper functions are only used by file_system_storage. - probably less inter-source dependency. by extracting the sources files out, they can be compiled individually, so changing one .cc file does not impact others. this could speed up the compilation time. Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/*
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* Copyright (C) 2015-present ScyllaDB
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*
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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 <seastar/core/file.hh>
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#include <seastar/core/fstream.hh>
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#include <seastar/core/future.hh>
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#include "data_dictionary/storage_options.hh"
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#include "seastarx.hh"
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#include "sstables/component_type.hh"
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#include "sstables/generation_type.hh"
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namespace data_dictionary {
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class storage_options;
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}
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namespace sstables {
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class delayed_commit_changes;
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class sstable;
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class sstables_manager;
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class storage {
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friend class test;
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// Internal, but can also be used by tests
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virtual void change_dir_for_test(sstring nd) {
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assert(false && "Changing directory not implemented");
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}
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virtual future<> create_links(const sstable& sst, const sstring& dir) const {
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assert(false && "Direct links creation not implemented");
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}
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virtual future<> move(const sstable& sst, sstring new_dir, generation_type generation, delayed_commit_changes* delay) {
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assert(false && "Direct move not implemented");
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}
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public:
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virtual ~storage() {}
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using absolute_path = bool_class<class absolute_path_tag>; // FIXME -- should go away eventually
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virtual future<> seal(const sstable& sst) = 0;
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virtual future<> snapshot(const sstable& sst, sstring dir, absolute_path abs) const = 0;
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virtual future<> change_state(const sstable& sst, sstring to, generation_type generation, delayed_commit_changes* delay) = 0;
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// runs in async context
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virtual void open(sstable& sst, const io_priority_class& pc) = 0;
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virtual future<> wipe(const sstable& sst) noexcept = 0;
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virtual future<file> open_component(const sstable& sst, component_type type, open_flags flags, file_open_options options, bool check_integrity) = 0;
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virtual future<data_sink> make_data_or_index_sink(sstable& sst, component_type type, io_priority_class pc) = 0;
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virtual future<data_sink> make_component_sink(sstable& sst, component_type type, open_flags oflags, file_output_stream_options options) = 0;
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virtual future<> destroy(const sstable& sst) = 0;
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virtual sstring prefix() const = 0;
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};
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std::unique_ptr<sstables::storage> make_storage(sstables_manager& manager, const data_dictionary::storage_options& s_opts, sstring dir);
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} // namespace sstables
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