diff options
Diffstat (limited to '')
-rw-r--r-- | src/core/file_sys/disk_filesystem.cpp | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/core/file_sys/disk_filesystem.cpp b/src/core/file_sys/disk_filesystem.cpp new file mode 100644 index 000000000..be7574fdb --- /dev/null +++ b/src/core/file_sys/disk_filesystem.cpp @@ -0,0 +1,147 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <cstring> +#include <memory> +#include "common/common_types.h" +#include "common/logging/log.h" +#include "core/file_sys/disk_filesystem.h" + +namespace FileSys { + +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"); + + std::string full_path = base_directory + path; + auto file = std::make_shared<FileUtil::IOFile>(full_path, mode == Mode::Read ? "rb" : "wb"); + + if (!file->IsOpen()) { + // TODO(Subv): Find out the correct error code. + return ResultCode(-1); + } + + return MakeResult<std::unique_ptr<StorageBackend>>( + std::make_unique<Disk_Storage>(std::move(file))); +} + +ResultCode Disk_FileSystem::DeleteFile(const Path& path) const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + // TODO(bunnei): Use correct error code + return ResultCode(-1); +} + +ResultCode Disk_FileSystem::RenameFile(const Path& src_path, const Path& dest_path) const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + // TODO(wwylele): Use correct error code + return ResultCode(-1); +} + +ResultCode Disk_FileSystem::DeleteDirectory(const Path& path) const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + // TODO(wwylele): Use correct error code + return ResultCode(-1); +} + +ResultCode Disk_FileSystem::DeleteDirectoryRecursively(const Path& path) const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + // TODO(wwylele): Use correct error code + return ResultCode(-1); +} + +ResultCode Disk_FileSystem::CreateFile(const std::string& path, u64 size) const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + + std::string full_path = base_directory + path; + if (size == 0) { + FileUtil::CreateEmptyFile(full_path); + return RESULT_SUCCESS; + } + + FileUtil::IOFile file(full_path, "wb"); + // Creates a sparse file (or a normal file on filesystems without the concept of sparse files) + // We do this by seeking to the right size, then writing a single null byte. + if (file.Seek(size - 1, SEEK_SET) && file.WriteBytes("", 1) == 1) { + return RESULT_SUCCESS; + } + + LOG_ERROR(Service_FS, "Too large file"); + // TODO(Subv): Find out the correct error code + return ResultCode(-1); +} + +ResultCode Disk_FileSystem::CreateDirectory(const Path& path) const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + // TODO(wwylele): Use correct error code + return ResultCode(-1); +} + +ResultCode Disk_FileSystem::RenameDirectory(const Path& src_path, const Path& dest_path) const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + // TODO(wwylele): Use correct error code + return ResultCode(-1); +} + +ResultVal<std::unique_ptr<DirectoryBackend>> Disk_FileSystem::OpenDirectory( + const Path& path) const { + return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<Disk_Directory>()); +} + +u64 Disk_FileSystem::GetFreeSpaceSize() const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + return 0; +} + +ResultVal<FileSys::EntryType> Disk_FileSystem::GetEntryType(const std::string& path) const { + std::string full_path = base_directory + path; + if (!FileUtil::Exists(full_path)) { + // TODO(Subv): Find out what this actually means + return ResultCode(ErrorModule::FS, 1); + } + + // TODO(Subv): Find out the EntryType values + UNIMPLEMENTED_MSG("Unimplemented GetEntryType"); +} + +ResultVal<size_t> Disk_Storage::Read(const u64 offset, const size_t length, u8* buffer) const { + LOG_TRACE(Service_FS, "called offset=%llu, length=%zu", offset, length); + file->Seek(offset, SEEK_SET); + return MakeResult<size_t>(file->ReadBytes(buffer, length)); +} + +ResultVal<size_t> Disk_Storage::Write(const u64 offset, const size_t length, const bool flush, + const u8* buffer) const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + file->Seek(offset, SEEK_SET); + size_t written = file->WriteBytes(buffer, length); + if (flush) { + file->Flush(); + } + return MakeResult<size_t>(written); +} + +u64 Disk_Storage::GetSize() const { + return file->GetSize(); +} + +bool Disk_Storage::SetSize(const u64 size) const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + return false; +} + +u32 Disk_Directory::Read(const u32 count, Entry* entries) { + LOG_WARNING(Service_FS, "(STUBBED) called"); + return 0; +} + +bool Disk_Directory::Close() const { + LOG_WARNING(Service_FS, "(STUBBED) called"); + return true; +} + +} // namespace FileSys |