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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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63
src/core/file_sys/nca_metadata.cpp
View file

@ -4,36 +4,44 @@
#include <cstring>
#include "common/common_funcs.h"
#include "common/logging/log.h"
#include "common/swap.h"
#include "content_archive.h"
#include "core/file_sys/nca_metadata.h"
namespace FileSys {
CNMT::CNMT(VirtualFile file) : header(std::make_unique<CNMTHeader>()) {
if (file->ReadObject(header.get()) != sizeof(CNMTHeader))
bool operator>=(TitleType lhs, TitleType rhs) {
return static_cast<size_t>(lhs) >= static_cast<size_t>(rhs);
}
bool operator<=(TitleType lhs, TitleType rhs) {
return static_cast<size_t>(lhs) <= static_cast<size_t>(rhs);
}
CNMT::CNMT(VirtualFile file) {
if (file->ReadObject(&header) != sizeof(CNMTHeader))
return;
// If type is {Application, Update, AOC} has opt-header.
if (static_cast<u8>(header->type) >= 0x80 && static_cast<u8>(header->type) <= 0x82) {
opt_header = std::make_unique<OptionalHeader>();
if (file->ReadObject(opt_header.get(), sizeof(CNMTHeader)) != sizeof(OptionalHeader)) {
opt_header = nullptr;
if (header.type >= TitleType::Application && header.type <= TitleType::AOC) {
if (file->ReadObject(&opt_header, sizeof(CNMTHeader)) != sizeof(OptionalHeader)) {
LOG_WARNING(Loader, "Failed to read optional header.");
}
}
for (u16 i = 0; i < header->number_content_entries; ++i) {
for (u16 i = 0; i < header.number_content_entries; ++i) {
auto& next = content_records.emplace_back(ContentRecord{});
if (file->ReadObject(&next, sizeof(CNMTHeader) + i * sizeof(ContentRecord) +
header->table_offset) != sizeof(ContentRecord)) {
header.table_offset) != sizeof(ContentRecord)) {
content_records.erase(content_records.end() - 1);
}
}
for (u16 i = 0; i < header->number_meta_entries; ++i) {
for (u16 i = 0; i < header.number_meta_entries; ++i) {
auto& next = meta_records.emplace_back(MetaRecord{});
if (file->ReadObject(&next, sizeof(CNMTHeader) + i * sizeof(MetaRecord) +
header->table_offset) != sizeof(MetaRecord)) {
header.table_offset) != sizeof(MetaRecord)) {
meta_records.erase(meta_records.end() - 1);
}
}
@ -41,20 +49,19 @@ CNMT::CNMT(VirtualFile file) : header(std::make_unique<CNMTHeader>()) {
CNMT::CNMT(CNMTHeader header, OptionalHeader opt_header, std::vector<ContentRecord> content_records,
std::vector<MetaRecord> meta_records)
: header(std::make_unique<CNMTHeader>(std::move(header))),
opt_header(std::make_unique<OptionalHeader>(std::move(opt_header))),
: header(std::move(header)), opt_header(std::move(opt_header)),
content_records(std::move(content_records)), meta_records(std::move(meta_records)) {}
u64 CNMT::GetTitleID() const {
return header->title_id;
return header.title_id;
}
u32 CNMT::GetTitleVersion() const {
return header->title_version;
return header.title_version;
}
TitleType CNMT::GetType() const {
return header->type;
return header.type;
}
const std::vector<ContentRecord>& CNMT::GetContentRecords() const {
@ -74,7 +81,7 @@ bool CNMT::UnionRecords(const CNMT& other) {
});
if (iter == content_records.end()) {
content_records.emplace_back(rec);
++header->number_content_entries;
++header.number_content_entries;
change = true;
}
}
@ -86,7 +93,7 @@ bool CNMT::UnionRecords(const CNMT& other) {
});
if (iter == meta_records.end()) {
meta_records.emplace_back(rec);
++header->number_meta_entries;
++header.number_meta_entries;
change = true;
}
}
@ -94,30 +101,30 @@ bool CNMT::UnionRecords(const CNMT& other) {
}
std::vector<u8> CNMT::Serialize() const {
if (header == nullptr)
return {};
std::vector<u8> out(sizeof(CNMTHeader));
out.reserve(0x100); // Avoid resizing -- average size.
memcpy(out.data(), header.get(), sizeof(CNMTHeader));
if (opt_header != nullptr) {
out.resize(out.size() + sizeof(OptionalHeader));
memcpy(out.data() + sizeof(CNMTHeader), opt_header.get(), sizeof(OptionalHeader));
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));
memcpy(out.data(), &header, sizeof(CNMTHeader));
// Optional Header
if (has_opt_header) {
memcpy(out.data() + sizeof(CNMTHeader), &opt_header, sizeof(OptionalHeader));
}
auto offset = header->table_offset;
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) {
out.resize(out.size() + sizeof(ContentRecord));
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) {
out.resize(out.size() + sizeof(MetaRecord));
memcpy(out.data() + offset + sizeof(CNMTHeader), &rec, sizeof(MetaRecord));
offset += sizeof(MetaRecord);
}

7
src/core/file_sys/nca_metadata.h
View file

@ -29,6 +29,9 @@ enum class TitleType : u8 {
DeltaTitle = 0x83,
};
bool operator>=(TitleType lhs, TitleType rhs);
bool operator<=(TitleType lhs, TitleType rhs);
enum class ContentRecordType : u8 {
Meta = 0,
Program = 1,
@ -96,8 +99,8 @@ public:
std::vector<u8> Serialize() const;
private:
std::unique_ptr<CNMTHeader> header;
std::unique_ptr<OptionalHeader> opt_header;
CNMTHeader header;
OptionalHeader opt_header;
std::vector<ContentRecord> content_records;
std::vector<MetaRecord> meta_records;

23
src/core/file_sys/registered_cache.cpp
View file

@ -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) {

1
src/core/file_sys/vfs_concat.cpp
View file

@ -68,6 +68,7 @@ size_t ConcatenatedVfsFile::Read(u8* data, size_t length, size_t offset) const {
}
}
// Check if the entry should be the last one. The loop above will make it end().
if (entry == files.end() && offset < files.rbegin()->first + files.rbegin()->second->GetSize())
--entry;

17
src/core/file_sys/vfs_real.cpp
View file

@ -83,10 +83,12 @@ 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);
if (!FileUtil::Exists(path) &&
!FileUtil::CreateFullPath(
FileUtil::SanitizePath(path, FileUtil::DirectorySeparator::ForwardSlash)) &&
!FileUtil::CreateEmptyFile(path))
if (!FileUtil::Exists(path))
return nullptr;
if (!FileUtil::CreateFullPath(
FileUtil::SanitizePath(path, FileUtil::DirectorySeparator::ForwardSlash)))
return nullptr;
if (!FileUtil::CreateEmptyFile(path))
return nullptr;
return OpenFile(path, perms);
}
@ -143,7 +145,12 @@ 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);
if (!FileUtil::Exists(path) && !FileUtil::CreateDir(path))
if (!FileUtil::Exists(path))
return nullptr;
if (!FileUtil::CreateFullPath(
FileUtil::SanitizePath(path, FileUtil::DirectorySeparator::ForwardSlash)))
return nullptr;
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));