forked from suyu/suyu
FileSys: add SDMCArchive
Now DiskArchive only serves for SDMC, then it should be just a "SDMCArchive"
This commit is contained in:
wwylele
parent
a879984c06
commit
93aa14e345
3 changed files with 301 additions and 1 deletions
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@ -8,6 +8,8 @@
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#include "common/logging/log.h"
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#include "core/file_sys/archive_sdmc.h"
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#include "core/file_sys/disk_archive.h"
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#include "core/file_sys/errors.h"
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#include "core/file_sys/path_parser.h"
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#include "core/settings.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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@ -15,6 +17,270 @@
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namespace FileSys {
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ResultVal<std::unique_ptr<FileBackend>> SDMCArchive::OpenFile(const Path& path,
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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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const PathParser path_parser(path);
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if (!path_parser.IsValid()) {
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LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
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return ERROR_INVALID_PATH;
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}
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if (mode.hex == 0) {
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LOG_ERROR(Service_FS, "Empty open mode");
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return ERROR_INVALID_OPEN_FLAGS;
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}
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if (mode.create_flag && !mode.write_flag) {
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LOG_ERROR(Service_FS, "Create flag set but write flag not set");
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return ERROR_INVALID_OPEN_FLAGS;
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}
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const auto full_path = path_parser.BuildHostPath(mount_point);
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switch (path_parser.GetHostStatus(mount_point)) {
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case PathParser::InvalidMountPoint:
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LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::PathNotFound:
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case PathParser::FileInPath:
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LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::DirectoryFound:
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LOG_ERROR(Service_FS, "%s is not a file", full_path.c_str());
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return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
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case PathParser::NotFound:
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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.",
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full_path.c_str());
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return ERROR_NOT_FOUND;
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} else {
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// Create the file
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FileUtil::CreateEmptyFile(full_path);
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}
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break;
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}
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FileUtil::IOFile file(full_path, mode.write_flag ? "r+b" : "rb");
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if (!file.IsOpen()) {
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LOG_CRITICAL(Service_FS, "(unreachable) Unknown error opening %s", full_path.c_str());
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return ERROR_NOT_FOUND;
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}
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auto disk_file = std::make_unique<DiskFile>(std::move(file), mode);
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return MakeResult<std::unique_ptr<FileBackend>>(std::move(disk_file));
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}
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ResultCode SDMCArchive::DeleteFile(const Path& path) const {
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const PathParser path_parser(path);
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if (!path_parser.IsValid()) {
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LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
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return ERROR_INVALID_PATH;
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}
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const auto full_path = path_parser.BuildHostPath(mount_point);
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switch (path_parser.GetHostStatus(mount_point)) {
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case PathParser::InvalidMountPoint:
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LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::PathNotFound:
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case PathParser::FileInPath:
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case PathParser::NotFound:
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LOG_ERROR(Service_FS, "%s not found", full_path.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::DirectoryFound:
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LOG_ERROR(Service_FS, "%s is not a file", full_path.c_str());
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return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
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}
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if (FileUtil::Delete(full_path)) {
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return RESULT_SUCCESS;
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}
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LOG_CRITICAL(Service_FS, "(unreachable) Unknown error deleting %s", full_path.c_str());
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return ERROR_NOT_FOUND;
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}
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ResultCode SDMCArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
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if (FileUtil::Rename(mount_point + src_path.AsString(), mount_point + dest_path.AsString())) {
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return RESULT_SUCCESS;
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}
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// TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
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// exist or similar. Verify.
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return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
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ErrorSummary::NothingHappened, ErrorLevel::Status);
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}
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template <typename T>
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static ResultCode DeleteDirectoryHelper(const Path& path, const std::string& mount_point,
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T deleter) {
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const PathParser path_parser(path);
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if (!path_parser.IsValid()) {
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LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
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return ERROR_INVALID_PATH;
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}
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if (path_parser.IsRootDirectory())
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return ERROR_NOT_FOUND;
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const auto full_path = path_parser.BuildHostPath(mount_point);
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switch (path_parser.GetHostStatus(mount_point)) {
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case PathParser::InvalidMountPoint:
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LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::PathNotFound:
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case PathParser::NotFound:
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LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::FileInPath:
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case PathParser::FileFound:
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LOG_ERROR(Service_FS, "Unexpected file in path %s", full_path.c_str());
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return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
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}
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if (deleter(full_path)) {
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return RESULT_SUCCESS;
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}
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LOG_ERROR(Service_FS, "Directory not empty %s", full_path.c_str());
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return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
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}
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ResultCode SDMCArchive::DeleteDirectory(const Path& path) const {
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return DeleteDirectoryHelper(path, mount_point, FileUtil::DeleteDir);
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}
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ResultCode SDMCArchive::DeleteDirectoryRecursively(const Path& path) const {
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return DeleteDirectoryHelper(
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path, mount_point, [](const std::string& p) { return FileUtil::DeleteDirRecursively(p); });
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}
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ResultCode SDMCArchive::CreateFile(const FileSys::Path& path, u64 size) const {
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const PathParser path_parser(path);
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if (!path_parser.IsValid()) {
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LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
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return ERROR_INVALID_PATH;
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}
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const auto full_path = path_parser.BuildHostPath(mount_point);
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switch (path_parser.GetHostStatus(mount_point)) {
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case PathParser::InvalidMountPoint:
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LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::PathNotFound:
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case PathParser::FileInPath:
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LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::DirectoryFound:
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LOG_ERROR(Service_FS, "%s already exists", full_path.c_str());
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return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
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case PathParser::FileFound:
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LOG_ERROR(Service_FS, "%s already exists", full_path.c_str());
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return ERROR_ALREADY_EXISTS;
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}
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if (size == 0) {
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FileUtil::CreateEmptyFile(full_path);
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return RESULT_SUCCESS;
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}
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FileUtil::IOFile file(full_path, "wb");
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// Creates a sparse file (or a normal file on filesystems without the concept of sparse files)
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// We do this by seeking to the right size, then writing a single null byte.
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if (file.Seek(size - 1, SEEK_SET) && file.WriteBytes("", 1) == 1) {
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return RESULT_SUCCESS;
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}
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LOG_ERROR(Service_FS, "Too large file");
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return ResultCode(ErrorDescription::TooLarge, ErrorModule::FS, ErrorSummary::OutOfResource,
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ErrorLevel::Info);
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}
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ResultCode SDMCArchive::CreateDirectory(const Path& path) const {
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const PathParser path_parser(path);
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if (!path_parser.IsValid()) {
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LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
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return ERROR_INVALID_PATH;
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}
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const auto full_path = path_parser.BuildHostPath(mount_point);
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switch (path_parser.GetHostStatus(mount_point)) {
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case PathParser::InvalidMountPoint:
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LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::PathNotFound:
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case PathParser::FileInPath:
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LOG_ERROR(Service_FS, "Path not found %s", full_path.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::DirectoryFound:
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case PathParser::FileFound:
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LOG_ERROR(Service_FS, "%s already exists", full_path.c_str());
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return ERROR_ALREADY_EXISTS;
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}
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if (FileUtil::CreateDir(mount_point + path.AsString())) {
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return RESULT_SUCCESS;
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}
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LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating %s", mount_point.c_str());
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return ResultCode(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
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ErrorLevel::Status);
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}
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ResultCode SDMCArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
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if (FileUtil::Rename(mount_point + src_path.AsString(), mount_point + dest_path.AsString()))
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return RESULT_SUCCESS;
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// TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
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// exist or similar. Verify.
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return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
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ErrorSummary::NothingHappened, ErrorLevel::Status);
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}
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ResultVal<std::unique_ptr<DirectoryBackend>> SDMCArchive::OpenDirectory(const Path& path) const {
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const PathParser path_parser(path);
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if (!path_parser.IsValid()) {
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LOG_ERROR(Service_FS, "Invalid path %s", path.DebugStr().c_str());
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return ERROR_INVALID_PATH;
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}
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const auto full_path = path_parser.BuildHostPath(mount_point);
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switch (path_parser.GetHostStatus(mount_point)) {
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case PathParser::InvalidMountPoint:
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LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point %s", mount_point.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::PathNotFound:
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case PathParser::NotFound:
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case PathParser::FileFound:
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LOG_ERROR(Service_FS, "%s not found", full_path.c_str());
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return ERROR_NOT_FOUND;
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case PathParser::FileInPath:
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LOG_ERROR(Service_FS, "Unexpected file in path %s", full_path.c_str());
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return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
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}
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auto directory = std::make_unique<DiskDirectory>(full_path);
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return MakeResult<std::unique_ptr<DirectoryBackend>>(std::move(directory));
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}
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u64 SDMCArchive::GetFreeBytes() const {
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// TODO: Stubbed to return 1GiB
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return 1024 * 1024 * 1024;
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}
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ArchiveFactory_SDMC::ArchiveFactory_SDMC(const std::string& sdmc_directory)
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: sdmc_directory(sdmc_directory) {
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LOG_INFO(Service_FS, "Directory %s set as SDMC.", sdmc_directory.c_str());
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@ -35,7 +301,7 @@ bool ArchiveFactory_SDMC::Initialize() {
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}
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ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SDMC::Open(const Path& path) {
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auto archive = std::make_unique<DiskArchive>(sdmc_directory);
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auto archive = std::make_unique<SDMCArchive>(sdmc_directory);
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return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
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}
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@ -14,6 +14,31 @@
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namespace FileSys {
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/// Archive backend for SDMC archive
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class SDMCArchive : public ArchiveBackend {
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public:
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SDMCArchive(const std::string& mount_point_) : mount_point(mount_point_) {}
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std::string GetName() const override {
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return "SDMCArchive: " + mount_point;
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}
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ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
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const Mode& mode) const override;
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ResultCode DeleteFile(const Path& path) const override;
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ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
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ResultCode DeleteDirectory(const Path& path) const override;
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ResultCode DeleteDirectoryRecursively(const Path& path) const override;
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ResultCode CreateFile(const Path& path, u64 size) const override;
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ResultCode CreateDirectory(const Path& path) const override;
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ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
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ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
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u64 GetFreeBytes() const override;
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protected:
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std::string mount_point;
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};
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/// File system interface to the SDMC archive
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class ArchiveFactory_SDMC final : public ArchiveFactory {
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public:
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@ -11,18 +11,27 @@ const ResultCode ERROR_INVALID_PATH(ErrorDescription::FS_InvalidPath, ErrorModul
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const ResultCode ERROR_UNSUPPORTED_OPEN_FLAGS(ErrorDescription::FS_UnsupportedOpenFlags,
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ErrorModule::FS, ErrorSummary::NotSupported,
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ErrorLevel::Usage);
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const ResultCode ERROR_INVALID_OPEN_FLAGS(ErrorDescription::FS_InvalidOpenFlags, ErrorModule::FS,
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ErrorSummary::Canceled, ErrorLevel::Status);
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const ResultCode ERROR_FILE_NOT_FOUND(ErrorDescription::FS_FileNotFound, ErrorModule::FS,
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ErrorSummary::NotFound, ErrorLevel::Status);
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const ResultCode ERROR_PATH_NOT_FOUND(ErrorDescription::FS_PathNotFound, ErrorModule::FS,
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ErrorSummary::NotFound, ErrorLevel::Status);
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const ResultCode ERROR_NOT_FOUND(ErrorDescription::FS_NotFound, ErrorModule::FS,
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ErrorSummary::NotFound, ErrorLevel::Status);
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const ResultCode ERROR_UNEXPECTED_FILE_OR_DIRECTORY(ErrorDescription::FS_UnexpectedFileOrDirectory,
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ErrorModule::FS, ErrorSummary::NotSupported,
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ErrorLevel::Usage);
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const ResultCode ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC(ErrorDescription::FS_NotAFile,
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ErrorModule::FS, ErrorSummary::Canceled,
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ErrorLevel::Status);
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const ResultCode ERROR_DIRECTORY_ALREADY_EXISTS(ErrorDescription::FS_DirectoryAlreadyExists,
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ErrorModule::FS, ErrorSummary::NothingHappened,
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ErrorLevel::Status);
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const ResultCode ERROR_FILE_ALREADY_EXISTS(ErrorDescription::FS_FileAlreadyExists, ErrorModule::FS,
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ErrorSummary::NothingHappened, ErrorLevel::Status);
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const ResultCode ERROR_ALREADY_EXISTS(ErrorDescription::FS_AlreadyExists, ErrorModule::FS,
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ErrorSummary::NothingHappened, ErrorLevel::Status);
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const ResultCode ERROR_DIRECTORY_NOT_EMPTY(ErrorDescription::FS_DirectoryNotEmpty, ErrorModule::FS,
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ErrorSummary::Canceled, ErrorLevel::Status);
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