dwarfs/include/dwarfs/writer/internal/inode_ordering.h
2025-04-07 21:32:26 +02:00

109 lines
3.0 KiB
C++

/* vim:set ts=2 sw=2 sts=2 et: */
/**
* \author Marcus Holland-Moritz (github@mhxnet.de)
* \copyright Copyright (c) Marcus Holland-Moritz
*
* This file is part of dwarfs.
*
* dwarfs is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dwarfs is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dwarfs. If not, see <https://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#pragma once
#include <filesystem>
#include <memory>
#include <unordered_map>
#include <dwarfs/writer/internal/inode.h>
namespace dwarfs {
class logger;
namespace internal {
class worker_group;
}
namespace writer {
struct inode_options;
struct fragment_order_options;
namespace internal {
class progress;
struct similarity_ordering_options;
class inode_ordering {
public:
inode_ordering(logger& lgr, progress& prog, inode_options const& opts);
void by_inode_number(sortable_inode_span& sp) const {
impl_->by_inode_number(sp);
}
void by_path(sortable_inode_span& sp) const { impl_->by_path(sp); }
void by_reverse_path(sortable_inode_span& sp) const {
impl_->by_reverse_path(sp);
}
void by_similarity(sortable_inode_span& sp, fragment_category cat) const {
impl_->by_similarity(sp, cat);
}
void by_nilsimsa(dwarfs::internal::worker_group& wg,
similarity_ordering_options const& opts,
sortable_inode_span& sp, fragment_category cat) const {
impl_->by_nilsimsa(wg, opts, sp, cat);
}
void by_explicit_order(sortable_inode_span& sp,
std::filesystem::path const& root_path,
fragment_order_options const& opts) const {
impl_->by_explicit_order(sp, root_path, opts);
}
class impl {
public:
virtual ~impl() = default;
virtual void by_inode_number(sortable_inode_span& sp) const = 0;
virtual void by_path(sortable_inode_span& sp) const = 0;
virtual void by_reverse_path(sortable_inode_span& sp) const = 0;
virtual void
by_similarity(sortable_inode_span& sp, fragment_category cat) const = 0;
virtual void
by_nilsimsa(dwarfs::internal::worker_group& wg,
similarity_ordering_options const& opts,
sortable_inode_span& sp, fragment_category cat) const = 0;
virtual void
by_explicit_order(sortable_inode_span& sp,
std::filesystem::path const& root_path,
fragment_order_options const& opts) const = 0;
};
private:
std::unique_ptr<impl> impl_;
};
} // namespace internal
} // namespace writer
} // namespace dwarfs