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registration: Update documentation and style

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This commit is contained in:
Zach Hilman
2018-08-11 15:39:09 -04:00
parent 22bdddd6f0
commit 893447b6b0
5 changed files with 69 additions and 42 deletions
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23
src/core/file_sys/registered_cache.cpp
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@ -23,13 +23,14 @@ bool operator<(const RegisteredCacheEntry& lhs, const RegisteredCacheEntry& rhs)
}
static bool FollowsTwoDigitDirFormat(std::string_view name) {
static const std::regex two_digit_regex(
"000000[0123456789abcdefABCDEF][0123456789abcdefABCDEF]");
static const std::regex two_digit_regex("000000[0-9A-F]{2}", std::regex_constants::ECMAScript |
std::regex_constants::icase);
return std::regex_match(name.begin(), name.end(), two_digit_regex);
}
static bool FollowsNcaIdFormat(std::string_view name) {
static const std::regex nca_id_regex("[0123456789abcdefABCDEF]+.nca");
static const std::regex nca_id_regex("[0-9A-F]{32}.nca", std::regex_constants::ECMAScript |
std::regex_constants::icase);
return name.size() == 36 && std::regex_match(name.begin(), name.end(), nca_id_regex);
}
@ -57,8 +58,9 @@ static std::string GetCNMTName(TitleType type, u64 title_id) {
};
auto index = static_cast<size_t>(type);
if (index >= 0x80)
index -= 0x80;
// If the index is after the jump in TitleType, subtract it out.
if (index >= static_cast<size_t>(TitleType::Application))
index -= static_cast<size_t>(TitleType::Application);
return fmt::format("{}_{:016x}.cnmt", TITLE_TYPE_NAMES[index], title_id);
}
@ -120,9 +122,15 @@ VirtualFile RegisteredCache::OpenFileOrDirectoryConcat(const VirtualDir& dir,
VirtualFile RegisteredCache::GetFileAtID(NcaID id) const {
VirtualFile file;
// Try all four modes of file storage:
// (bit 1 = uppercase/lower, bit 0 = within a two-digit dir)
// 00: /000000**/{:032X}.nca
// 01: /{:032X}.nca
// 10: /000000**/{:032x}.nca
// 11: /{:032x}.nca
for (u8 i = 0; i < 4; ++i) {
file = OpenFileOrDirectoryConcat(
dir, GetRelativePathFromNcaID(id, (i & 0b10) == 0, (i & 0b01) == 0));
const auto path = GetRelativePathFromNcaID(id, (i & 0b10) == 0, (i & 0b01) == 0);
file = OpenFileOrDirectoryConcat(dir, path);
if (file != nullptr)
return file;
}
@ -420,6 +428,7 @@ bool RegisteredCache::RawInstallNCA(std::shared_ptr<NCA> nca, const VfsCopyFunct
}
bool RegisteredCache::RawInstallYuzuMeta(const CNMT& cnmt) {
// Reasoning behind this method can be found in the comment for InstallEntry, NCA overload.
const auto dir = this->dir->CreateDirectoryRelative("yuzu_meta");
const auto filename = GetCNMTName(cnmt.GetType(), cnmt.GetTitleID());
if (dir->GetFile(filename) == nullptr) {