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FS: Allow multiple instances of the same archive type to be open at once

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This commit is contained in:
Yuri Kunde Schlesner
2015-02-06 11:53:14 -02:00
parent 4468625080
commit 3f1a3952d7
19 changed files with 199 additions and 159 deletions
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28
src/core/file_sys/archive_savedatacheck.cpp
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@ -3,6 +3,7 @@
// Refer to the license.txt file included.
#include "common/file_util.h"
#include "common/make_unique.h"
#include "core/file_sys/archive_savedatacheck.h"
#include "core/hle/service/fs/archive.h"
@ -21,32 +22,33 @@ static std::string GetSaveDataCheckPath(const std::string& mount_point, u32 high
mount_point.c_str(), high, low);
}
Archive_SaveDataCheck::Archive_SaveDataCheck(const std::string& nand_directory) :
ArchiveFactory_SaveDataCheck::ArchiveFactory_SaveDataCheck(const std::string& nand_directory) :
mount_point(GetSaveDataCheckContainerPath(nand_directory)) {
}
ResultCode Archive_SaveDataCheck::Open(const Path& path) {
// TODO(Subv): We should not be overwriting raw_data everytime this function is called,
// but until we use factory classes to create the archives at runtime instead of creating them beforehand
// and allow multiple archives of the same type to be open at the same time without clobbering each other,
// we won't be able to maintain the state of each archive, hence we overwrite it every time it's needed.
// There are a number of problems with this, for example opening a file in this archive, then opening
// this archive again with a different path, will corrupt the previously open file.
ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SaveDataCheck::Open(const Path& path) {
auto vec = path.AsBinary();
const u32* data = reinterpret_cast<u32*>(vec.data());
std::string file_path = GetSaveDataCheckPath(mount_point, data[1], data[0]);
FileUtil::IOFile file(file_path, "rb");
std::fill(raw_data.begin(), raw_data.end(), 0);
if (!file.IsOpen()) {
return ResultCode(-1); // TODO(Subv): Find the right error code
}
auto size = file.GetSize();
raw_data.resize(size);
file.ReadBytes(raw_data.data(), size);
auto raw_data = std::make_shared<std::vector<u8>>(size);
file.ReadBytes(raw_data->data(), size);
file.Close();
return RESULT_SUCCESS;
auto archive = Common::make_unique<IVFCArchive>(std::move(raw_data));
return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
}
ResultCode ArchiveFactory_SaveDataCheck::Format(const Path& path) {
LOG_ERROR(Service_FS, "Attempted to format a SaveDataCheck archive.");
// TODO: Verify error code
return ResultCode(ErrorDescription::NotAuthorized, ErrorModule::FS,
ErrorSummary::NotSupported, ErrorLevel::Permanent);
}
} // namespace FileSys