FileSys: remove unused DiskArchive
All "subclasses" of DiskArchive are splitted out. This class is useless
This commit is contained in:
wwylele
parent
5c6e13a171
commit
f775a3781b
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@ -15,153 +15,6 @@
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namespace FileSys {
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ResultVal<std::unique_ptr<FileBackend>> DiskArchive::OpenFile(const Path& path,
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const Mode& mode) const {
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LOG_DEBUG(Service_FS, "called path=%s mode=%01X", path.DebugStr().c_str(), mode.hex);
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auto full_path = mount_point + path.AsString();
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if (FileUtil::IsDirectory(full_path))
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return ResultCode(ErrorDescription::FS_NotAFile, ErrorModule::FS, ErrorSummary::Canceled,
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ErrorLevel::Status);
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// Specifying only the Create flag is invalid
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if (mode.create_flag && !mode.read_flag && !mode.write_flag) {
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return ResultCode(ErrorDescription::FS_InvalidOpenFlags, ErrorModule::FS,
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ErrorSummary::Canceled, ErrorLevel::Status);
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}
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if (!FileUtil::Exists(full_path)) {
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if (!mode.create_flag) {
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LOG_ERROR(Service_FS, "Non-existing file %s can't be open without mode create.",
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full_path.c_str());
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return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS,
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ErrorSummary::NotFound, ErrorLevel::Status);
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} else {
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// Create the file
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FileUtil::CreateEmptyFile(full_path);
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}
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}
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std::string mode_string = "";
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if (mode.write_flag)
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mode_string += "r+"; // Files opened with Write access can be read from
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else if (mode.read_flag)
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mode_string += "r";
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// Open the file in binary mode, to avoid problems with CR/LF on Windows systems
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mode_string += "b";
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FileUtil::IOFile file(full_path, mode_string.c_str());
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if (!file.IsOpen())
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return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS, ErrorSummary::NotFound,
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ErrorLevel::Status);
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auto disk_file = std::make_unique<DiskFile>(std::move(file), mode);
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return MakeResult<std::unique_ptr<FileBackend>>(std::move(disk_file));
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}
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ResultCode DiskArchive::DeleteFile(const Path& path) const {
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std::string file_path = mount_point + path.AsString();
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if (FileUtil::IsDirectory(file_path))
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return ResultCode(ErrorDescription::FS_NotAFile, ErrorModule::FS, ErrorSummary::Canceled,
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ErrorLevel::Status);
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if (!FileUtil::Exists(file_path))
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return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS, ErrorSummary::NotFound,
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ErrorLevel::Status);
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if (FileUtil::Delete(file_path))
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return RESULT_SUCCESS;
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return ResultCode(ErrorDescription::FS_NotAFile, ErrorModule::FS, ErrorSummary::Canceled,
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ErrorLevel::Status);
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}
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ResultCode DiskArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
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if (FileUtil::Rename(mount_point + src_path.AsString(), mount_point + dest_path.AsString()))
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return RESULT_SUCCESS;
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// TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
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// exist or similar. Verify.
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return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
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ErrorSummary::NothingHappened, ErrorLevel::Status);
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}
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ResultCode DiskArchive::DeleteDirectory(const Path& path) const {
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if (FileUtil::DeleteDir(mount_point + path.AsString()))
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return RESULT_SUCCESS;
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return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
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ErrorSummary::Canceled, ErrorLevel::Status);
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}
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ResultCode DiskArchive::DeleteDirectoryRecursively(const Path& path) const {
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if (FileUtil::DeleteDirRecursively(mount_point + path.AsString()))
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return RESULT_SUCCESS;
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return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
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ErrorSummary::Canceled, ErrorLevel::Status);
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}
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ResultCode DiskArchive::CreateFile(const FileSys::Path& path, u64 size) const {
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std::string full_path = mount_point + path.AsString();
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if (FileUtil::IsDirectory(full_path))
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return ResultCode(ErrorDescription::FS_NotAFile, ErrorModule::FS, ErrorSummary::Canceled,
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ErrorLevel::Status);
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if (FileUtil::Exists(full_path))
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return ResultCode(ErrorDescription::FS_AlreadyExists, ErrorModule::FS,
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ErrorSummary::NothingHappened, ErrorLevel::Status);
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if (size == 0) {
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FileUtil::CreateEmptyFile(full_path);
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return RESULT_SUCCESS;
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}
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FileUtil::IOFile file(full_path, "wb");
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// Creates a sparse file (or a normal file on filesystems without the concept of sparse files)
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// We do this by seeking to the right size, then writing a single null byte.
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if (file.Seek(size - 1, SEEK_SET) && file.WriteBytes("", 1) == 1)
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return RESULT_SUCCESS;
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return ResultCode(ErrorDescription::TooLarge, ErrorModule::FS, ErrorSummary::OutOfResource,
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ErrorLevel::Info);
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}
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ResultCode DiskArchive::CreateDirectory(const Path& path) const {
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if (FileUtil::CreateDir(mount_point + path.AsString()))
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return RESULT_SUCCESS;
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return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
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ErrorSummary::Canceled, ErrorLevel::Status);
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}
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ResultCode DiskArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
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if (FileUtil::Rename(mount_point + src_path.AsString(), mount_point + dest_path.AsString()))
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return RESULT_SUCCESS;
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// TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
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// exist or similar. Verify.
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return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
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ErrorSummary::NothingHappened, ErrorLevel::Status);
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}
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ResultVal<std::unique_ptr<DirectoryBackend>> DiskArchive::OpenDirectory(const Path& path) const {
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LOG_DEBUG(Service_FS, "called path=%s", path.DebugStr().c_str());
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auto full_path = mount_point + path.AsString();
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if (!FileUtil::IsDirectory(full_path))
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return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS, ErrorSummary::NotFound,
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ErrorLevel::Permanent);
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auto directory = std::make_unique<DiskDirectory>(full_path);
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return MakeResult<std::unique_ptr<DirectoryBackend>>(std::move(directory));
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}
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u64 DiskArchive::GetFreeBytes() const {
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// TODO: Stubbed to return 1GiB
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return 1024 * 1024 * 1024;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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ResultVal<size_t> DiskFile::Read(const u64 offset, const size_t length, u8* buffer) const {
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if (!mode.read_flag)
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return ResultCode(ErrorDescription::FS_InvalidOpenFlags, ErrorModule::FS,
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@ -20,38 +20,6 @@
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namespace FileSys {
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/**
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* Helper which implements a backend accessing the host machine's filesystem.
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* This should be subclassed by concrete archive types, which will provide the
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* base directory on the host filesystem and override any required functionality.
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*/
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class DiskArchive : public ArchiveBackend {
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public:
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DiskArchive(const std::string& mount_point_) : mount_point(mount_point_) {}
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virtual std::string GetName() const override {
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return "DiskArchive: " + mount_point;
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}
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ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
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const Mode& mode) const override;
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ResultCode DeleteFile(const Path& path) const override;
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ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
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ResultCode DeleteDirectory(const Path& path) const override;
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ResultCode DeleteDirectoryRecursively(const Path& path) const override;
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ResultCode CreateFile(const Path& path, u64 size) const override;
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ResultCode CreateDirectory(const Path& path) const override;
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ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
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ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
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u64 GetFreeBytes() const override;
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protected:
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friend class DiskFile;
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friend class DiskDirectory;
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std::string mount_point;
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};
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class DiskFile : public FileBackend {
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public:
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DiskFile(FileUtil::IOFile&& file_, const Mode& mode_)
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