From 4082c4eda6d8282abf0ba7763ed4fd66ecd176f1 Mon Sep 17 00:00:00 2001 From: Zach Hilman Date: Thu, 6 Dec 2018 20:28:51 -0500 Subject: savedata_factory: Partially implement IVFC save sizes using files This stores a file in the save directory called '.yuzu_save_size' which stores the two save sizes (normal area and journaled area) sequentially as u64s. --- src/core/file_sys/savedata_factory.cpp | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'src/core/file_sys/savedata_factory.cpp') diff --git a/src/core/file_sys/savedata_factory.cpp b/src/core/file_sys/savedata_factory.cpp index d63b7f19b..54f5b698a 100644 --- a/src/core/file_sys/savedata_factory.cpp +++ b/src/core/file_sys/savedata_factory.cpp @@ -13,6 +13,8 @@ namespace FileSys { +constexpr const char* SAVE_DATA_SIZE_FILENAME = ".yuzu_save_size"; + std::string SaveDataDescriptor::DebugInfo() const { return fmt::format("[type={:02X}, title_id={:016X}, user_id={:016X}{:016X}, save_id={:016X}]", static_cast(type), title_id, user_id[1], user_id[0], save_id); @@ -132,4 +134,32 @@ std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType typ } } +SaveDataSize SaveDataFactory::ReadSaveDataSize(SaveDataType type, u64 title_id, + u128 user_id) const { + const auto path = GetFullPath(SaveDataSpaceId::NandUser, type, title_id, user_id, 0); + const auto dir = GetOrCreateDirectoryRelative(this->dir, path); + + const auto size_file = dir->GetFile(SAVE_DATA_SIZE_FILENAME); + if (size_file == nullptr || size_file->GetSize() < sizeof(SaveDataSize)) + return {0, 0}; + + SaveDataSize out; + if (size_file->ReadObject(&out) != sizeof(SaveDataSize)) + return {0, 0}; + return out; +} + +void SaveDataFactory::WriteSaveDataSize(SaveDataType type, u64 title_id, u128 user_id, + SaveDataSize new_value) { + const auto path = GetFullPath(SaveDataSpaceId::NandUser, type, title_id, user_id, 0); + const auto dir = GetOrCreateDirectoryRelative(this->dir, path); + + const auto size_file = dir->CreateFile(SAVE_DATA_SIZE_FILENAME); + if (size_file == nullptr) + return; + + size_file->Resize(sizeof(SaveDataSize)); + size_file->WriteObject(new_value); +} + } // namespace FileSys -- cgit v1.2.3