4 changed files with 214 additions and 165 deletions
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2src/core/CMakeLists.txt
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162src/core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.cpp
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48src/core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.h
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167src/core/hle/service/filesystem/fsp/fsp_srv.cpp
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// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "common/hex_util.h"
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#include "core/file_sys/savedata_factory.h"
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#include "core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.h"
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#include "core/hle/service/filesystem/save_data_controller.h"
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#include "core/hle/service/ipc_helpers.h"
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namespace Service::FileSystem { |
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ISaveDataInfoReader::ISaveDataInfoReader(Core::System& system_, |
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std::shared_ptr<SaveDataController> save_data_controller_, |
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FileSys::SaveDataSpaceId space) |
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: ServiceFramework{system_, "ISaveDataInfoReader"}, |
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save_data_controller{save_data_controller_} { |
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static const FunctionInfo functions[] = { |
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{0, &ISaveDataInfoReader::ReadSaveDataInfo, "ReadSaveDataInfo"}, |
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}; |
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RegisterHandlers(functions); |
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FindAllSaves(space); |
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} |
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ISaveDataInfoReader::~ISaveDataInfoReader() = default; |
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static u64 stoull_be(std::string_view str) { |
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if (str.size() != 16) { |
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return 0; |
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} |
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const auto bytes = Common::HexStringToArray<0x8>(str); |
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u64 out{}; |
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std::memcpy(&out, bytes.data(), sizeof(u64)); |
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return Common::swap64(out); |
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} |
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void ISaveDataInfoReader::ReadSaveDataInfo(HLERequestContext& ctx) { |
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LOG_DEBUG(Service_FS, "called"); |
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// Calculate how many entries we can fit in the output buffer
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const u64 count_entries = ctx.GetWriteBufferNumElements<SaveDataInfo>(); |
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// Cap at total number of entries.
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const u64 actual_entries = std::min(count_entries, info.size() - next_entry_index); |
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// Determine data start and end
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const auto* begin = reinterpret_cast<u8*>(info.data() + next_entry_index); |
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const auto* end = reinterpret_cast<u8*>(info.data() + next_entry_index + actual_entries); |
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const auto range_size = static_cast<std::size_t>(std::distance(begin, end)); |
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next_entry_index += actual_entries; |
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// Write the data to memory
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ctx.WriteBuffer(begin, range_size); |
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IPC::ResponseBuilder rb{ctx, 4}; |
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rb.Push(ResultSuccess); |
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rb.Push<u64>(actual_entries); |
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} |
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void ISaveDataInfoReader::FindAllSaves(FileSys::SaveDataSpaceId space) { |
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FileSys::VirtualDir save_root{}; |
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const auto result = save_data_controller->OpenSaveDataSpace(&save_root, space); |
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if (result != ResultSuccess || save_root == nullptr) { |
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LOG_ERROR(Service_FS, "The save root for the space_id={:02X} was invalid!", space); |
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return; |
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} |
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for (const auto& type : save_root->GetSubdirectories()) { |
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if (type->GetName() == "save") { |
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FindNormalSaves(space, type); |
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} else if (space == FileSys::SaveDataSpaceId::TemporaryStorage) { |
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FindTemporaryStorageSaves(space, type); |
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} |
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} |
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} |
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void ISaveDataInfoReader::FindNormalSaves(FileSys::SaveDataSpaceId space, |
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const FileSys::VirtualDir& type) { |
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for (const auto& save_id : type->GetSubdirectories()) { |
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for (const auto& user_id : save_id->GetSubdirectories()) { |
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// Skip non user id subdirectories
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if (user_id->GetName().size() != 0x20) { |
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continue; |
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} |
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const auto save_id_numeric = stoull_be(save_id->GetName()); |
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auto user_id_numeric = Common::HexStringToArray<0x10>(user_id->GetName()); |
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std::reverse(user_id_numeric.begin(), user_id_numeric.end()); |
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if (save_id_numeric != 0) { |
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// System Save Data
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info.emplace_back(SaveDataInfo{ |
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0, |
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space, |
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FileSys::SaveDataType::SystemSaveData, |
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{}, |
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user_id_numeric, |
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save_id_numeric, |
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0, |
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user_id->GetSize(), |
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{}, |
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{}, |
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}); |
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continue; |
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} |
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for (const auto& title_id : user_id->GetSubdirectories()) { |
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const auto device = std::all_of(user_id_numeric.begin(), user_id_numeric.end(), |
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[](u8 val) { return val == 0; }); |
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info.emplace_back(SaveDataInfo{ |
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0, |
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space, |
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device ? FileSys::SaveDataType::DeviceSaveData |
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: FileSys::SaveDataType::SaveData, |
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{}, |
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user_id_numeric, |
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save_id_numeric, |
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stoull_be(title_id->GetName()), |
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title_id->GetSize(), |
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{}, |
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{}, |
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}); |
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} |
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} |
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} |
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} |
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void ISaveDataInfoReader::FindTemporaryStorageSaves(FileSys::SaveDataSpaceId space, |
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const FileSys::VirtualDir& type) { |
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for (const auto& user_id : type->GetSubdirectories()) { |
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// Skip non user id subdirectories
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if (user_id->GetName().size() != 0x20) { |
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continue; |
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} |
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for (const auto& title_id : user_id->GetSubdirectories()) { |
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if (!title_id->GetFiles().empty() || !title_id->GetSubdirectories().empty()) { |
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auto user_id_numeric = Common::HexStringToArray<0x10>(user_id->GetName()); |
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std::reverse(user_id_numeric.begin(), user_id_numeric.end()); |
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info.emplace_back(SaveDataInfo{ |
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0, |
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space, |
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FileSys::SaveDataType::TemporaryStorage, |
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{}, |
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user_id_numeric, |
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stoull_be(type->GetName()), |
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stoull_be(title_id->GetName()), |
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title_id->GetSize(), |
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{}, |
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{}, |
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}); |
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} |
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} |
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} |
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} |
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} // namespace Service::FileSystem
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@ -0,0 +1,48 @@ |
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// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project |
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// SPDX-License-Identifier: GPL-2.0-or-later |
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#pragma once |
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#include <vector> |
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#include "common/common_types.h" |
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#include "core/hle/service/service.h" |
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namespace Service::FileSystem { |
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class SaveDataController; |
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class ISaveDataInfoReader final : public ServiceFramework<ISaveDataInfoReader> { |
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public: |
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explicit ISaveDataInfoReader(Core::System& system_, |
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std::shared_ptr<SaveDataController> save_data_controller_, |
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FileSys::SaveDataSpaceId space); |
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~ISaveDataInfoReader() override; |
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void ReadSaveDataInfo(HLERequestContext& ctx); |
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private: |
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void FindAllSaves(FileSys::SaveDataSpaceId space); |
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void FindNormalSaves(FileSys::SaveDataSpaceId space, const FileSys::VirtualDir& type); |
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void FindTemporaryStorageSaves(FileSys::SaveDataSpaceId space, const FileSys::VirtualDir& type); |
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struct SaveDataInfo { |
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u64_le save_id_unknown; |
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FileSys::SaveDataSpaceId space; |
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FileSys::SaveDataType type; |
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INSERT_PADDING_BYTES_NOINIT(0x6); |
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std::array<u8, 0x10> user_id; |
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u64_le save_id; |
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u64_le title_id; |
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u64_le save_image_size; |
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u16_le index; |
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FileSys::SaveDataRank rank; |
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INSERT_PADDING_BYTES_NOINIT(0x25); |
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}; |
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static_assert(sizeof(SaveDataInfo) == 0x60, "SaveDataInfo has incorrect size."); |
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std::shared_ptr<SaveDataController> save_data_controller; |
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std::vector<SaveDataInfo> info; |
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u64 next_entry_index = 0; |
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}; |
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} // namespace Service::FileSystem |
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