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registration: Various style and documentation improvements

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Fix logic in RealVfsFilesystem Create methods
Remove magic numbers
Fix regex errors
This commit is contained in:
Zach Hilman 2018-08-12 15:55:44 -04:00
parent 6b76b77400
commit 35e4a47be0
3 changed files with 22 additions and 18 deletions
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11
src/core/file_sys/nca_metadata.cpp
View file

@ -103,7 +103,10 @@ bool CNMT::UnionRecords(const CNMT& other) {
std::vector<u8> CNMT::Serialize() const {
const bool has_opt_header =
header.type >= TitleType::Application && header.type <= TitleType::AOC;
std::vector<u8> out(sizeof(CNMTHeader) + (has_opt_header ? sizeof(OptionalHeader) : 0));
const auto dead_zone = header.table_offset + sizeof(CNMTHeader);
std::vector<u8> out(
std::max(sizeof(CNMTHeader) + (has_opt_header ? sizeof(OptionalHeader) : 0), dead_zone) +
content_records.size() * sizeof(ContentRecord) + meta_records.size() * sizeof(MetaRecord));
memcpy(out.data(), &header, sizeof(CNMTHeader));
// Optional Header
@ -113,17 +116,11 @@ std::vector<u8> CNMT::Serialize() const {
auto offset = header.table_offset;
const auto dead_zone = offset + sizeof(CNMTHeader) - out.size();
if (dead_zone > 0)
out.resize(offset + sizeof(CNMTHeader));
out.resize(out.size() + content_records.size() * sizeof(ContentRecord));
for (const auto& rec : content_records) {
memcpy(out.data() + offset + sizeof(CNMTHeader), &rec, sizeof(ContentRecord));
offset += sizeof(ContentRecord);
}
out.resize(out.size() + content_records.size() * sizeof(MetaRecord));
for (const auto& rec : meta_records) {
memcpy(out.data() + offset + sizeof(CNMTHeader), &rec, sizeof(MetaRecord));
offset += sizeof(MetaRecord);

11
src/core/file_sys/registered_cache.cpp
View file

@ -29,7 +29,7 @@ static bool FollowsTwoDigitDirFormat(std::string_view name) {
}
static bool FollowsNcaIdFormat(std::string_view name) {
static const std::regex nca_id_regex("[0-9A-F]{32}.nca", std::regex_constants::ECMAScript |
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);
}
@ -59,8 +59,10 @@ static std::string GetCNMTName(TitleType type, u64 title_id) {
auto index = static_cast<size_t>(type);
// If the index is after the jump in TitleType, subtract it out.
if (index >= static_cast<size_t>(TitleType::Application))
index -= 0x7B;
if (index >= static_cast<size_t>(TitleType::Application)) {
index -= static_cast<size_t>(TitleType::Application) -
static_cast<size_t>(TitleType::FirmwarePackageB);
}
return fmt::format("{}_{:016x}.cnmt", TITLE_TYPE_NAMES[index], title_id);
}
@ -96,7 +98,8 @@ VirtualFile RegisteredCache::OpenFileOrDirectoryConcat(const VirtualDir& dir,
file = files[0];
} else {
std::vector<VirtualFile> concat;
for (u8 i = 0; i < 0x10; ++i) {
// Since the files are a two-digit hex number, max is FF.
for (size_t i = 0; i < 0x100; ++i) {
auto next = nca_dir->GetFile(fmt::format("{:02X}", i));
if (next != nullptr) {
concat.push_back(std::move(next));

12
src/core/file_sys/vfs_real.cpp
View file

@ -84,9 +84,11 @@ VirtualFile RealVfsFilesystem::OpenFile(std::string_view path_, Mode perms) {
VirtualFile RealVfsFilesystem::CreateFile(std::string_view path_, Mode perms) {
const auto path = FileUtil::SanitizePath(path_, FileUtil::DirectorySeparator::PlatformDefault);
const auto path_fwd = FileUtil::SanitizePath(path, FileUtil::DirectorySeparator::ForwardSlash);
if (!FileUtil::Exists(path) && !FileUtil::CreateFullPath(path_fwd) &&
!FileUtil::CreateEmptyFile(path))
if (!FileUtil::Exists(path)) {
FileUtil::CreateFullPath(path_fwd);
if (!FileUtil::CreateEmptyFile(path))
return nullptr;
}
return OpenFile(path, perms);
}
@ -143,9 +145,11 @@ VirtualDir RealVfsFilesystem::OpenDirectory(std::string_view path_, Mode perms)
VirtualDir RealVfsFilesystem::CreateDirectory(std::string_view path_, Mode perms) {
const auto path = FileUtil::SanitizePath(path_, FileUtil::DirectorySeparator::PlatformDefault);
const auto path_fwd = FileUtil::SanitizePath(path, FileUtil::DirectorySeparator::ForwardSlash);
if (!FileUtil::Exists(path) && !FileUtil::CreateFullPath(path_fwd) &&
!FileUtil::CreateEmptyFile(path))
if (!FileUtil::Exists(path)) {
FileUtil::CreateFullPath(path_fwd);
if (!FileUtil::CreateDir(path))
return nullptr;
}
// Cannot use make_shared as RealVfsDirectory constructor is private
return std::shared_ptr<RealVfsDirectory>(new RealVfsDirectory(*this, path, perms));
}