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HLE/FS: Return the proper error codes when opening files.

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Subv
2015-12-28 10:17:06 -05:00
parent 802ef6d099
commit 95b34f8081
7 changed files with 43 additions and 28 deletions
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44
src/core/file_sys/disk_archive.cpp
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@ -17,12 +17,13 @@
namespace FileSys {
std::unique_ptr<FileBackend> DiskArchive::OpenFile(const Path& path, const Mode mode) const {
ResultVal<std::unique_ptr<FileBackend>> DiskArchive::OpenFile(const Path& path, const Mode mode) const {
LOG_DEBUG(Service_FS, "called path=%s mode=%01X", path.DebugStr().c_str(), mode.hex);
auto file = Common::make_unique<DiskFile>(*this, path, mode);
if (!file->Open())
return nullptr;
return std::move(file);
ResultCode result = file->Open();
if (result.IsError())
return result;
return MakeResult<std::unique_ptr<FileBackend>>(std::move(file));
}
ResultCode DiskArchive::DeleteFile(const Path& path) const {
@ -103,25 +104,38 @@ DiskFile::DiskFile(const DiskArchive& archive, const Path& path, const Mode mode
this->mode.hex = mode.hex;
}
bool DiskFile::Open() {
if (!mode.create_flag && !FileUtil::Exists(path)) {
LOG_ERROR(Service_FS, "Non-existing file %s can't be open without mode create.", path.c_str());
return false;
ResultCode DiskFile::Open() {
if (FileUtil::IsDirectory(path))
return ResultCode(ErrorDescription::FS_NotAFile, ErrorModule::FS, ErrorSummary::Canceled, ErrorLevel::Status);
// Specifying only the Create flag is invalid
if (mode.create_flag && !mode.read_flag && !mode.write_flag) {
return ResultCode(ErrorDescription::FS_InvalidOpenFlags, ErrorModule::FS, ErrorSummary::Canceled, ErrorLevel::Status);
}
std::string mode_string;
if (mode.create_flag)
mode_string = "w+";
else if (mode.write_flag)
mode_string = "r+"; // Files opened with Write access can be read from
if (!FileUtil::Exists(path)) {
if (!mode.create_flag) {
LOG_ERROR(Service_FS, "Non-existing file %s can't be open without mode create.", path.c_str());
return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS, ErrorSummary::NotFound, ErrorLevel::Status);
} else {
// Create the file
FileUtil::CreateEmptyFile(path);
}
}
std::string mode_string = "";
if (mode.write_flag)
mode_string += "r+"; // Files opened with Write access can be read from
else if (mode.read_flag)
mode_string = "r";
mode_string += "r";
// Open the file in binary mode, to avoid problems with CR/LF on Windows systems
mode_string += "b";
file = Common::make_unique<FileUtil::IOFile>(path, mode_string.c_str());
return file->IsOpen();
if (file->IsOpen())
return RESULT_SUCCESS;
return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS, ErrorSummary::NotFound, ErrorLevel::Status);
}
ResultVal<size_t> DiskFile::Read(const u64 offset, const size_t length, u8* buffer) const {