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HLE/FS: Return the proper error codes when opening files.
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802ef6d099
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@ -76,9 +76,9 @@ public:
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* Open a file specified by its path, using the specified mode
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* @param path Path relative to the archive
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* @param mode Mode to open the file with
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* @return Opened file, or nullptr
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* @return Opened file, or error code
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*/
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virtual std::unique_ptr<FileBackend> OpenFile(const Path& path, const Mode mode) const = 0;
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virtual ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path, const Mode mode) const = 0;
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/**
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* Delete a file specified by its path
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@ -17,12 +17,13 @@
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namespace FileSys {
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std::unique_ptr<FileBackend> DiskArchive::OpenFile(const Path& path, const Mode mode) const {
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ResultVal<std::unique_ptr<FileBackend>> DiskArchive::OpenFile(const Path& path, 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 file = Common::make_unique<DiskFile>(*this, path, mode);
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if (!file->Open())
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return nullptr;
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return std::move(file);
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ResultCode result = file->Open();
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if (result.IsError())
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return result;
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return MakeResult<std::unique_ptr<FileBackend>>(std::move(file));
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}
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ResultCode DiskArchive::DeleteFile(const Path& path) const {
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@ -103,25 +104,38 @@ DiskFile::DiskFile(const DiskArchive& archive, const Path& path, const Mode mode
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this->mode.hex = mode.hex;
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}
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bool DiskFile::Open() {
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if (!mode.create_flag && !FileUtil::Exists(path)) {
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LOG_ERROR(Service_FS, "Non-existing file %s can't be open without mode create.", path.c_str());
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return false;
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ResultCode DiskFile::Open() {
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if (FileUtil::IsDirectory(path))
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return ResultCode(ErrorDescription::FS_NotAFile, ErrorModule::FS, ErrorSummary::Canceled, 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, ErrorSummary::Canceled, ErrorLevel::Status);
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}
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std::string mode_string;
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if (mode.create_flag)
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mode_string = "w+";
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else if (mode.write_flag)
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mode_string = "r+"; // Files opened with Write access can be read from
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if (!FileUtil::Exists(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.", path.c_str());
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return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS, ErrorSummary::NotFound, ErrorLevel::Status);
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} else {
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// Create the file
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FileUtil::CreateEmptyFile(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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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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file = Common::make_unique<FileUtil::IOFile>(path, mode_string.c_str());
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return file->IsOpen();
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if (file->IsOpen())
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return RESULT_SUCCESS;
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return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS, ErrorSummary::NotFound, ErrorLevel::Status);
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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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@ -33,7 +33,7 @@ public:
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virtual std::string GetName() const override { return "DiskArchive: " + mount_point; }
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std::unique_ptr<FileBackend> OpenFile(const Path& path, const Mode mode) const override;
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ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path, const Mode mode) const override;
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ResultCode DeleteFile(const Path& path) const override;
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bool RenameFile(const Path& src_path, const Path& dest_path) const override;
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bool DeleteDirectory(const Path& path) const override;
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@ -54,7 +54,7 @@ class DiskFile : public FileBackend {
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public:
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DiskFile(const DiskArchive& archive, const Path& path, const Mode mode);
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bool Open() override;
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ResultCode Open() override;
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ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
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ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) const override;
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u64 GetSize() const override;
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@ -21,9 +21,9 @@ public:
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/**
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* Open the file
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* @return true if the file opened correctly
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* @return Result of the file operation
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*/
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virtual bool Open() = 0;
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virtual ResultCode Open() = 0;
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/**
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* Read data from the file
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@ -20,8 +20,8 @@ std::string IVFCArchive::GetName() const {
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return "IVFC";
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}
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std::unique_ptr<FileBackend> IVFCArchive::OpenFile(const Path& path, const Mode mode) const {
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return Common::make_unique<IVFCFile>(romfs_file, data_offset, data_size);
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ResultVal<std::unique_ptr<FileBackend>> IVFCArchive::OpenFile(const Path& path, const Mode mode) const {
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return MakeResult<std::unique_ptr<FileBackend>>(Common::make_unique<IVFCFile>(romfs_file, data_offset, data_size));
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}
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ResultCode IVFCArchive::DeleteFile(const Path& path) const {
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@ -34,7 +34,7 @@ public:
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std::string GetName() const override;
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std::unique_ptr<FileBackend> OpenFile(const Path& path, const Mode mode) const override;
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ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path, const Mode mode) const override;
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ResultCode DeleteFile(const Path& path) const override;
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bool RenameFile(const Path& src_path, const Path& dest_path) const override;
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bool DeleteDirectory(const Path& path) const override;
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@ -55,7 +55,7 @@ public:
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IVFCFile(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
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: romfs_file(file), data_offset(offset), data_size(size) {}
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bool Open() override { return true; }
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ResultCode Open() override { return RESULT_SUCCESS; }
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ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
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ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) const override;
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u64 GetSize() const override;
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@ -307,13 +307,14 @@ ResultVal<Kernel::SharedPtr<File>> OpenFileFromArchive(ArchiveHandle archive_han
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if (archive == nullptr)
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return ERR_INVALID_HANDLE;
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std::unique_ptr<FileSys::FileBackend> backend = archive->OpenFile(path, mode);
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if (backend == nullptr) {
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auto backend = archive->OpenFile(path, mode);
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if (backend.Failed()) {
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return backend.Code();
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return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS,
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ErrorSummary::NotFound, ErrorLevel::Status);
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}
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auto file = Kernel::SharedPtr<File>(new File(std::move(backend), path));
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auto file = Kernel::SharedPtr<File>(new File(backend.MoveFrom(), path));
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return MakeResult<Kernel::SharedPtr<File>>(std::move(file));
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}
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