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Atmosphere/libraries/libstratosphere/include/stratosphere/fs/fs_romfs_filesystem.hpp
2020-12-05 03:05:06 -08:00

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3.6 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stratosphere/fs/fs_common.hpp>
#include <stratosphere/fs/impl/fs_newable.hpp>
#include <stratosphere/fs/fsa/fs_ifile.hpp>
#include <stratosphere/fs/fsa/fs_idirectory.hpp>
#include <stratosphere/fs/fsa/fs_ifilesystem.hpp>
#include <stratosphere/fs/common/fs_dbm_hierarchical_rom_file_table.hpp>
namespace ams::fs {
class RomFsFileSystem : public fsa::IFileSystem, public impl::Newable {
NON_COPYABLE(RomFsFileSystem);
public:
using RomFileTable = HierarchicalRomFileTable;
private:
RomFileTable rom_file_table;
IStorage *base_storage;
std::unique_ptr<IStorage> unique_storage;
std::unique_ptr<IStorage> dir_bucket_storage;
std::unique_ptr<IStorage> dir_entry_storage;
std::unique_ptr<IStorage> file_bucket_storage;
std::unique_ptr<IStorage> file_entry_storage;
s64 entry_size;
private:
Result GetFileInfo(RomFileTable::FileInfo *out, const char *path);
public:
static Result GetRequiredWorkingMemorySize(size_t *out, IStorage *storage);
public:
RomFsFileSystem();
virtual ~RomFsFileSystem() override;
Result Initialize(IStorage *base, void *work, size_t work_size, bool use_cache);
Result Initialize(std::unique_ptr<IStorage>&& base, void *work, size_t work_size, bool use_cache);
IStorage *GetBaseStorage();
RomFileTable *GetRomFileTable();
Result GetFileBaseOffset(s64 *out, const char *path);
public:
virtual Result DoCreateFile(const char *path, s64 size, int flags) override;
virtual Result DoDeleteFile(const char *path) override;
virtual Result DoCreateDirectory(const char *path) override;
virtual Result DoDeleteDirectory(const char *path) override;
virtual Result DoDeleteDirectoryRecursively(const char *path) override;
virtual Result DoRenameFile(const char *old_path, const char *new_path) override;
virtual Result DoRenameDirectory(const char *old_path, const char *new_path) override;
virtual Result DoGetEntryType(fs::DirectoryEntryType *out, const char *path) override;
virtual Result DoOpenFile(std::unique_ptr<fs::fsa::IFile> *out_file, const char *path, fs::OpenMode mode) override;
virtual Result DoOpenDirectory(std::unique_ptr<fs::fsa::IDirectory> *out_dir, const char *path, fs::OpenDirectoryMode mode) override;
virtual Result DoCommit() override;
virtual Result DoGetFreeSpaceSize(s64 *out, const char *path) override;
virtual Result DoGetTotalSpaceSize(s64 *out, const char *path) override;
virtual Result DoCleanDirectoryRecursively(const char *path) override;
/* These aren't accessible as commands. */
virtual Result DoCommitProvisionally(s64 counter) override;
virtual Result DoRollback() override;
};
}