Files
scylladb/sstables/storage.hh
Raphael S. Carvalho 37f1af2646 sstables: Allow to get free space from underlying storage
That will be used in turn to restrict reshape to 10% of available space
in underlying storage.

Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
(cherry picked from commit 51c7ee889e)
2024-06-20 20:41:41 +00:00

85 lines
3.3 KiB
C++

/*
* Copyright (C) 2015-present ScyllaDB
*
*/
/*
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#pragma once
#include <seastar/core/file.hh>
#include <seastar/core/fstream.hh>
#include <seastar/core/future.hh>
#include "data_dictionary/storage_options.hh"
#include "seastarx.hh"
#include "sstables/shared_sstable.hh"
#include "sstables/component_type.hh"
#include "sstables/generation_type.hh"
namespace data_dictionary {
class storage_options;
}
namespace sstables {
enum class sstable_state;
class delayed_commit_changes;
class sstable;
class sstables_manager;
class entry_descriptor;
class atomic_delete_context_impl {
public:
virtual ~atomic_delete_context_impl() {}
};
using atomic_delete_context = std::unique_ptr<atomic_delete_context_impl>;
class storage {
friend class test;
// Internal, but can also be used by tests
virtual void change_dir_for_test(sstring nd) {
assert(false && "Changing directory not implemented");
}
virtual future<> create_links(const sstable& sst, const std::filesystem::path& dir) const {
assert(false && "Direct links creation not implemented");
}
virtual future<> move(const sstable& sst, sstring new_dir, generation_type generation, delayed_commit_changes* delay) {
assert(false && "Direct move not implemented");
}
public:
virtual ~storage() {}
using absolute_path = bool_class<class absolute_path_tag>; // FIXME -- should go away eventually
using sync_dir = bool_class<struct sync_dir_tag>; // meaningful only to filesystem storage
virtual future<> seal(const sstable& sst) = 0;
virtual future<> snapshot(const sstable& sst, sstring dir, absolute_path abs, std::optional<generation_type> gen = {}) const = 0;
virtual future<> change_state(const sstable& sst, sstable_state to, generation_type generation, delayed_commit_changes* delay) = 0;
// runs in async context
virtual void open(sstable& sst) = 0;
virtual future<> wipe(const sstable& sst, sync_dir) noexcept = 0;
virtual future<file> open_component(const sstable& sst, component_type type, open_flags flags, file_open_options options, bool check_integrity) = 0;
virtual future<data_sink> make_data_or_index_sink(sstable& sst, component_type type) = 0;
virtual future<data_sink> make_component_sink(sstable& sst, component_type type, open_flags oflags, file_output_stream_options options) = 0;
virtual future<> destroy(const sstable& sst) = 0;
virtual future<atomic_delete_context> atomic_delete_prepare(const std::vector<shared_sstable>&) const = 0;
virtual future<> atomic_delete_complete(atomic_delete_context ctx) const = 0;
virtual future<> remove_by_registry_entry(entry_descriptor desc) = 0;
// Free space available in the underlying storage.
virtual future<uint64_t> free_space() const = 0;
virtual sstring prefix() const = 0;
};
std::unique_ptr<sstables::storage> make_storage(sstables_manager& manager, const data_dictionary::storage_options& s_opts, sstring table_dir, sstable_state state);
future<> init_table_storage(const data_dictionary::storage_options& so, sstring dir);
future<> destroy_table_storage(const data_dictionary::storage_options& so, sstring dir);
future<> init_keyspace_storage(const data_dictionary::storage_options& so, sstring dir);
} // namespace sstables