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file_sys/registered_cache: Use unique_ptr and regular pointers instead of shared_ptrs where applicable

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The data retrieved in these cases are ultimately chiefly owned by either
the RegisteredCache instance itself, or the filesystem factories. Both
these should live throughout the use of their contained data. If they
don't, it should be considered an interface/design issue, and using
shared_ptr instances here would mask that, as the data would always be
prolonged after the main owner's lifetime ended.

This makes the lifetime of the data explicit and makes it harder to
accidentally create cyclic references. It also makes the interface
slightly more flexible than the previous API, as a shared_ptr can be
created from a unique_ptr, but not the other way around, so this allows
for that use-case if it ever becomes necessary in some form.
This commit is contained in:
Lioncash
2018-10-16 09:05:47 -04:00
parent 548958bcaf
commit 39ae73b356
12 changed files with 53 additions and 51 deletions
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19
src/yuzu/game_list_worker.cpp
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@ -96,7 +96,7 @@ void GameListWorker::AddInstalledTitlesToGameList() {
FileSys::ContentRecordType::Program);
for (const auto& game : installed_games) {
const auto& file = cache->GetEntryUnparsed(game);
const auto file = cache->GetEntryUnparsed(game);
std::unique_ptr<Loader::AppLoader> loader = Loader::GetLoader(file);
if (!loader)
continue;
@ -107,7 +107,7 @@ void GameListWorker::AddInstalledTitlesToGameList() {
loader->ReadProgramId(program_id);
const FileSys::PatchManager patch{program_id};
const auto& control = cache->GetEntry(game.title_id, FileSys::ContentRecordType::Control);
const auto control = cache->GetEntry(game.title_id, FileSys::ContentRecordType::Control);
if (control != nullptr)
GetMetadataFromControlNCA(patch, *control, icon, name);
@ -135,9 +135,10 @@ void GameListWorker::AddInstalledTitlesToGameList() {
FileSys::ContentRecordType::Control);
for (const auto& entry : control_data) {
const auto nca = cache->GetEntry(entry);
if (nca != nullptr)
nca_control_map.insert_or_assign(entry.title_id, nca);
auto nca = cache->GetEntry(entry);
if (nca != nullptr) {
nca_control_map.insert_or_assign(entry.title_id, std::move(nca));
}
}
}
@ -153,9 +154,11 @@ void GameListWorker::FillControlMap(const std::string& dir_path) {
QFileInfo file_info(physical_name.c_str());
if (!is_dir && file_info.suffix().toStdString() == "nca") {
auto nca =
std::make_shared<FileSys::NCA>(vfs->OpenFile(physical_name, FileSys::Mode::Read));
if (nca->GetType() == FileSys::NCAContentType::Control)
nca_control_map.insert_or_assign(nca->GetTitleId(), nca);
std::make_unique<FileSys::NCA>(vfs->OpenFile(physical_name, FileSys::Mode::Read));
if (nca->GetType() == FileSys::NCAContentType::Control) {
const u64 title_id = nca->GetTitleId();
nca_control_map.insert_or_assign(title_id, std::move(nca));
}
}
return true;
};