diff options
Diffstat (limited to 'src/core/file_sys/disk_filesystem.cpp')
-rw-r--r-- | src/core/file_sys/disk_filesystem.cpp | 114 |
1 files changed, 98 insertions, 16 deletions
diff --git a/src/core/file_sys/disk_filesystem.cpp b/src/core/file_sys/disk_filesystem.cpp index 22b17ba04..4235f3935 100644 --- a/src/core/file_sys/disk_filesystem.cpp +++ b/src/core/file_sys/disk_filesystem.cpp @@ -11,16 +11,43 @@ namespace FileSys { +static std::string ModeFlagsToString(Mode mode) { + std::string mode_str; + u32 mode_flags = static_cast<u32>(mode); + + // Calculate the correct open mode for the file. + if ((mode_flags & static_cast<u32>(Mode::Read)) && + (mode_flags & static_cast<u32>(Mode::Write))) { + if (mode_flags & static_cast<u32>(Mode::Append)) + mode_str = "a+"; + else + mode_str = "r+"; + } else { + if (mode_flags & static_cast<u32>(Mode::Read)) + mode_str = "r"; + else if (mode_flags & static_cast<u32>(Mode::Append)) + mode_str = "a"; + else if (mode_flags & static_cast<u32>(Mode::Write)) + mode_str = "w"; + } + + mode_str += "b"; + + return mode_str; +} + std::string Disk_FileSystem::GetName() const { return "Disk"; } ResultVal<std::unique_ptr<StorageBackend>> Disk_FileSystem::OpenFile(const std::string& path, Mode mode) const { - ASSERT_MSG(mode == Mode::Read || mode == Mode::Write, "Other file modes are not supported"); + + // Calculate the correct open mode for the file. + std::string mode_str = ModeFlagsToString(mode); std::string full_path = base_directory + path; - auto file = std::make_shared<FileUtil::IOFile>(full_path, mode == Mode::Read ? "rb" : "wb"); + auto file = std::make_shared<FileUtil::IOFile>(full_path, mode_str.c_str()); if (!file->IsOpen()) { return ERROR_PATH_NOT_FOUND; @@ -75,8 +102,15 @@ ResultCode Disk_FileSystem::CreateFile(const std::string& path, u64 size) const return ResultCode(-1); } -ResultCode Disk_FileSystem::CreateDirectory(const Path& path) const { - LOG_WARNING(Service_FS, "(STUBBED) called"); +ResultCode Disk_FileSystem::CreateDirectory(const std::string& path) const { + // TODO(Subv): Perform path validation to prevent escaping the emulator sandbox. + std::string full_path = base_directory + path; + + if (FileUtil::CreateDir(full_path)) { + return RESULT_SUCCESS; + } + + LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating %s", full_path.c_str()); // TODO(wwylele): Use correct error code return ResultCode(-1); } @@ -88,8 +122,17 @@ ResultCode Disk_FileSystem::RenameDirectory(const Path& src_path, const Path& de } ResultVal<std::unique_ptr<DirectoryBackend>> Disk_FileSystem::OpenDirectory( - const Path& path) const { - return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<Disk_Directory>()); + const std::string& path) const { + + std::string full_path = base_directory + path; + + if (!FileUtil::IsDirectory(full_path)) { + // TODO(Subv): Find the correct error code for this. + return ResultCode(-1); + } + + auto directory = std::make_unique<Disk_Directory>(full_path); + return MakeResult<std::unique_ptr<DirectoryBackend>>(std::move(directory)); } u64 Disk_FileSystem::GetFreeSpaceSize() const { @@ -103,8 +146,10 @@ ResultVal<FileSys::EntryType> Disk_FileSystem::GetEntryType(const std::string& p return ERROR_PATH_NOT_FOUND; } - // TODO(Subv): Find out the EntryType values - UNIMPLEMENTED_MSG("Unimplemented GetEntryType"); + if (FileUtil::IsDirectory(full_path)) + return MakeResult(EntryType::Directory); + + return MakeResult(EntryType::File); } ResultVal<size_t> Disk_Storage::Read(const u64 offset, const size_t length, u8* buffer) const { @@ -129,18 +174,55 @@ u64 Disk_Storage::GetSize() const { } bool Disk_Storage::SetSize(const u64 size) const { - LOG_WARNING(Service_FS, "(STUBBED) called"); - return false; + file->Resize(size); + file->Flush(); + return true; } -u32 Disk_Directory::Read(const u32 count, Entry* entries) { - LOG_WARNING(Service_FS, "(STUBBED) called"); - return 0; +Disk_Directory::Disk_Directory(const std::string& path) : directory() { + unsigned size = FileUtil::ScanDirectoryTree(path, directory); + directory.size = size; + directory.isDirectory = true; + children_iterator = directory.children.begin(); } -bool Disk_Directory::Close() const { - LOG_WARNING(Service_FS, "(STUBBED) called"); - return true; +u64 Disk_Directory::Read(const u64 count, Entry* entries) { + u64 entries_read = 0; + + while (entries_read < count && children_iterator != directory.children.cend()) { + const FileUtil::FSTEntry& file = *children_iterator; + const std::string& filename = file.virtualName; + Entry& entry = entries[entries_read]; + + LOG_TRACE(Service_FS, "File %s: size=%llu dir=%d", filename.c_str(), file.size, + file.isDirectory); + + // TODO(Link Mauve): use a proper conversion to UTF-16. + for (size_t j = 0; j < FILENAME_LENGTH; ++j) { + entry.filename[j] = filename[j]; + if (!filename[j]) + break; + } + + if (file.isDirectory) { + entry.file_size = 0; + entry.type = EntryType::Directory; + } else { + entry.file_size = file.size; + entry.type = EntryType::File; + } + + ++entries_read; + ++children_iterator; + } + return entries_read; +} + +u64 Disk_Directory::GetEntryCount() const { + // We convert the children iterator into a const_iterator to allow template argument deduction + // in std::distance. + std::vector<FileUtil::FSTEntry>::const_iterator current = children_iterator; + return std::distance(current, directory.children.end()); } } // namespace FileSys |