Optimize FilterApkAssets by caching config (14e8ade9) · Commits · e / os / android_frameworks_base

cmds/idmap2/libidmap2/ResourceMapping.cpp

+2 −4

Original line number	Diff line number	Diff line
		@@ -285,14 +285,12 @@ Result<ResourceMapping> ResourceMapping::FromApkAssets(const ApkAssets& target_a
		bool enforce_overlayable,
		LogInfo& log_info) {
		AssetManager2 target_asset_manager;
		if (!target_asset_manager.SetApkAssets({&target_apk_assets}, true /* invalidate_caches */,
		false /* filter_incompatible_configs*/)) {
		if (!target_asset_manager.SetApkAssets({&target_apk_assets})) {
		return Error("failed to create target asset manager");
		}

		AssetManager2 overlay_asset_manager;
		if (!overlay_asset_manager.SetApkAssets({&overlay_apk_assets}, true /* invalidate_caches */,
		false /* filter_incompatible_configs */)) {
		if (!overlay_asset_manager.SetApkAssets({&overlay_apk_assets})) {
		return Error("failed to create overlay asset manager");
		}

libs/androidfw/AssetManager2.cpp

+105 −169

Original line number	Diff line number	Diff line
		@@ -103,10 +103,10 @@ AssetManager2::AssetManager2() {
		}

		bool AssetManager2::SetApkAssets(const std::vector<const ApkAssets*>& apk_assets,
		bool invalidate_caches, bool filter_incompatible_configs) {
		bool invalidate_caches) {
		apk_assets_ = apk_assets;
		BuildDynamicRefTable();
		RebuildFilterList(filter_incompatible_configs);
		RebuildFilterList();
		if (invalidate_caches) {
		InvalidateCaches(static_cast<uint32_t>(-1));
		}
		@@ -623,7 +623,8 @@ base::expected<FindEntryResult, NullOrIOError> AssetManager2::FindEntry(
		if (UNLIKELY(logging_enabled)) {
		last_resolution_.steps.push_back(
		Resolution::Step{Resolution::Step::Type::OVERLAID, overlay_result->config.toString(),
		overlay_result->package_name});
		overlay_result->package_name,
		overlay_result->cookie});
		}
		}
		}
		@@ -646,22 +647,21 @@ base::expected<FindEntryResult, NullOrIOError> AssetManager2::FindEntryInternal(
		const LoadedPackage* best_package = nullptr;
		incfs::verified_map_ptr<ResTable_type> best_type;
		const ResTable_config* best_config = nullptr;
		ResTable_config best_config_copy;
		uint32_t best_offset = 0U;
		uint32_t type_flags = 0U;

		auto resolution_type = Resolution::Step::Type::NO_ENTRY;
		std::vector<Resolution::Step> resolution_steps;

		// If desired_config is the same as the set configuration, then we can use our filtered list
		// and we don't need to match the configurations, since they already matched.
		const bool use_fast_path = !ignore_configuration && &desired_config == &configuration_;
		// If `desired_config` is not the same as the set configuration or the caller will accept a value
		// from any configuration, then we cannot use our filtered list of types since it only it contains
		// types matched to the set configuration.
		const bool use_filtered = !ignore_configuration && &desired_config == &configuration_;

		const size_t package_count = package_group.packages_.size();
		for (size_t pi = 0; pi < package_count; pi++) {
		const ConfiguredPackage& loaded_package_impl = package_group.packages_[pi];
		const LoadedPackage* loaded_package = loaded_package_impl.loaded_package_;
		ApkAssetsCookie cookie = package_group.cookies_[pi];
		const ApkAssetsCookie cookie = package_group.cookies_[pi];

		// If the type IDs are offset in this package, we need to take that into account when searching
		// for a type.
		@@ -670,58 +670,62 @@ base::expected<FindEntryResult, NullOrIOError> AssetManager2::FindEntryInternal(
		continue;
		}

		// Allow custom loader packages to overlay resource values with configurations equivalent to the
		// current best configuration.
		const bool package_is_loader = loaded_package->IsCustomLoader();

		auto entry_flags = type_spec->GetFlagsForEntryIndex(entry_idx);
		if (UNLIKELY(!entry_flags.has_value())) {
		return base::unexpected(entry_flags.error());
		}
		type_flags \|= entry_flags.value();

		// If the package is an overlay or custom loader,
		// then even configurations that are the same MUST be chosen.
		const bool package_is_loader = loaded_package->IsCustomLoader();

		if (use_fast_path) {
		const FilteredConfigGroup& filtered_group = loaded_package_impl.filtered_configs_[type_idx];
		for (const auto& type_config : filtered_group.type_configs) {
		const ResTable_config& this_config = type_config.config;
		const size_t type_entry_count = (use_filtered) ? filtered_group.type_entries.size()
		: type_spec->type_entries.size();
		for (size_t i = 0; i < type_entry_count; i++) {
		const TypeSpec::TypeEntry* type_entry = (use_filtered) ? filtered_group.type_entries[i]
		: &type_spec->type_entries[i];

		// We can skip calling ResTable_config::match() if the caller does not care for the
		// configuration to match or if we're using the list of types that have already had their
		// configuration matched.
		const ResTable_config& this_config = type_entry->config;
		if (!(use_filtered \|\| ignore_configuration \|\| this_config.match(desired_config))) {
		continue;
		}

		// We can skip calling ResTable_config::match() because we know that all candidate
		// configurations that do NOT match have been filtered-out.
		Resolution::Step::Type resolution_type;
		if (best_config == nullptr) {
		resolution_type = Resolution::Step::Type::INITIAL;
		} else if (this_config.isBetterThan(*best_config, &desired_config)) {
		resolution_type = (package_is_loader) ? Resolution::Step::Type::BETTER_MATCH_LOADER
		: Resolution::Step::Type::BETTER_MATCH;
		resolution_type = Resolution::Step::Type::BETTER_MATCH;
		} else if (package_is_loader && this_config.compare(*best_config) == 0) {
		resolution_type = Resolution::Step::Type::OVERLAID_LOADER;
		resolution_type = Resolution::Step::Type::OVERLAID;
		} else {
		if (UNLIKELY(logging_enabled)) {
		resolution_type = (package_is_loader) ? Resolution::Step::Type::SKIPPED_LOADER
		: Resolution::Step::Type::SKIPPED;
		resolution_steps.push_back(Resolution::Step{resolution_type,
		resolution_steps.push_back(Resolution::Step{Resolution::Step::Type::SKIPPED,
		this_config.toString(),
		&loaded_package->GetPackageName()});
		&loaded_package->GetPackageName(),
		cookie});
		}
		continue;
		}

		// The configuration matches and is better than the previous selection.
		// Find the entry value if it exists for this configuration.
		const auto& type = type_config.type;
		const auto& type = type_entry->type;
		const auto offset = LoadedPackage::GetEntryOffset(type, entry_idx);
		if (UNLIKELY(IsIOError(offset))) {
		return base::unexpected(offset.error());
		}

		if (!offset.has_value()) {
		if (UNLIKELY(logging_enabled)) {
		if (package_is_loader) {
		resolution_type = Resolution::Step::Type::NO_ENTRY_LOADER;
		} else {
		resolution_type = Resolution::Step::Type::NO_ENTRY;
		}
		resolution_steps.push_back(Resolution::Step{resolution_type,
		resolution_steps.push_back(Resolution::Step{Resolution::Step::Type::NO_ENTRY,
		this_config.toString(),
		&loaded_package->GetPackageName()});
		&loaded_package->GetPackageName(),
		cookie});
		}
		continue;
		}
		@@ -735,66 +739,14 @@ base::expected<FindEntryResult, NullOrIOError> AssetManager2::FindEntryInternal(
		if (UNLIKELY(logging_enabled)) {
		last_resolution_.steps.push_back(Resolution::Step{resolution_type,
		this_config.toString(),
		&loaded_package->GetPackageName()});
		}
		}
		} else {
		// This is the slower path, which doesn't use the filtered list of configurations.
		// Here we must read the ResTable_config from the mmapped APK, convert it to host endianness
		// and fill in any new fields that did not exist when the APK was compiled.
		// Furthermore when selecting configurations we can't just record the pointer to the
		// ResTable_config, we must copy it.
		const auto iter_end = type_spec->types + type_spec->type_count;
		for (auto iter = type_spec->types; iter != iter_end; ++iter) {
		const incfs::verified_map_ptr<ResTable_type>& type = *iter;

		ResTable_config this_config{};
		if (!ignore_configuration) {
		this_config.copyFromDtoH(type->config);
		if (!this_config.match(desired_config)) {
		continue;
		&loaded_package->GetPackageName(),
		cookie});
		}

		if (best_config == nullptr) {
		resolution_type = Resolution::Step::Type::INITIAL;
		} else if (this_config.isBetterThan(*best_config, &desired_config)) {
		resolution_type = (package_is_loader) ? Resolution::Step::Type::BETTER_MATCH_LOADER
		: Resolution::Step::Type::BETTER_MATCH;
		} else if (package_is_loader && this_config.compare(*best_config) == 0) {
		resolution_type = Resolution::Step::Type::OVERLAID_LOADER;
		} else {
		continue;
		}
		}

		// The configuration matches and is better than the previous selection.
		// Find the entry value if it exists for this configuration.
		const auto offset = LoadedPackage::GetEntryOffset(type, entry_idx);
		if (UNLIKELY(IsIOError(offset))) {
		return base::unexpected(offset.error());
		}
		if (!offset.has_value()) {
		continue;
		}

		best_cookie = cookie;
		best_package = loaded_package;
		best_type = type;
		best_config_copy = this_config;
		best_config = &best_config_copy;
		best_offset = offset.value();

		if (stop_at_first_match) {
		// Any configuration will suffice, so break.
		if (stop_at_first_match) {
		break;
		}

		if (UNLIKELY(logging_enabled)) {
		last_resolution_.steps.push_back(Resolution::Step{resolution_type,
		this_config.toString(),
		&loaded_package->GetPackageName()});
		}
		}
		}
		}

		@@ -851,19 +803,16 @@ std::string AssetManager2::GetLastResourceResolution() const {
		return {};
		}

		auto cookie = last_resolution_.cookie;
		const ApkAssetsCookie cookie = last_resolution_.cookie;
		if (cookie == kInvalidCookie) {
		LOG(ERROR) << "AssetManager hasn't resolved a resource to read resolution path.";
		return {};
		}

		uint32_t resid = last_resolution_.resid;
		std::vector<Resolution::Step>& steps = last_resolution_.steps;
		std::string resource_name_string;

		const LoadedPackage* package =
		apk_assets_[cookie]->GetLoadedArsc()->GetPackageById(get_package_id(resid));
		const uint32_t resid = last_resolution_.resid;
		const auto package = apk_assets_[cookie]->GetLoadedArsc()->GetPackageById(get_package_id(resid));

		std::string resource_name_string;
		if (package != nullptr) {
		auto resource_name = ToResourceName(last_resolution_.type_string_ref,
		last_resolution_.entry_string_ref,
		@@ -878,46 +827,26 @@ std::string AssetManager2::GetLastResourceResolution() const {
		<< "\n\tFor config -"
		<< configuration_.toString();

		std::string prefix;
		for (Resolution::Step step : steps) {
		switch (step.type) {
		case Resolution::Step::Type::INITIAL:
		prefix = "Found initial";
		break;
		case Resolution::Step::Type::BETTER_MATCH:
		prefix = "Found better";
		break;
		case Resolution::Step::Type::BETTER_MATCH_LOADER:
		prefix = "Found better in loader";
		break;
		case Resolution::Step::Type::OVERLAID:
		prefix = "Overlaid";
		break;
		case Resolution::Step::Type::OVERLAID_LOADER:
		prefix = "Overlaid by loader";
		break;
		case Resolution::Step::Type::SKIPPED:
		prefix = "Skipped";
		break;
		case Resolution::Step::Type::SKIPPED_LOADER:
		prefix = "Skipped loader";
		break;
		case Resolution::Step::Type::NO_ENTRY:
		prefix = "No entry";
		break;
		case Resolution::Step::Type::NO_ENTRY_LOADER:
		prefix = "No entry for loader";
		break;
		}
		for (const Resolution::Step& step : last_resolution_.steps) {
		const static std::unordered_map<Resolution::Step::Type, const char*> kStepStrings = {
		{Resolution::Step::Type::INITIAL, "Found initial"},
		{Resolution::Step::Type::BETTER_MATCH, "Found better"},
		{Resolution::Step::Type::OVERLAID, "Overlaid"},
		{Resolution::Step::Type::SKIPPED, "Skipped"},
		{Resolution::Step::Type::NO_ENTRY, "No entry"}
		};

		if (!prefix.empty()) {
		log_stream << "\n\t" << prefix << ": " << *step.package_name;
		const auto prefix = kStepStrings.find(step.type);
		if (prefix == kStepStrings.end()) {
		continue;
		}

		log_stream << "\n\t" << prefix->second << ": " << *step.package_name << " ("
		<< apk_assets_[step.cookie]->GetPath() << ")";
		if (!step.config_name.isEmpty()) {
		log_stream << " -" << step.config_name;
		}
		}
		}

		return log_stream.str();
		}
		@@ -935,6 +864,16 @@ base::expected<AssetManager2::ResourceName, NullOrIOError> AssetManager2::GetRes
		*result->package_name);
		}

		base::expected<uint32_t, NullOrIOError> AssetManager2::GetResourceTypeSpecFlags(
		uint32_t resid) const {
		auto result = FindEntry(resid, 0u /* density_override /, false / stop_at_first_match */,
		true /* ignore_configuration */);
		if (!result.has_value()) {
		return base::unexpected(result.error());
		}
		return result->type_flags;
		}

		base::expected<AssetManager2::SelectedValue, NullOrIOError> AssetManager2::GetResource(
		uint32_t resid, bool may_be_bag, uint16_t density_override) const {
		auto result = FindEntry(resid, density_override, false /* stop_at_first_match */,
		@@ -1333,7 +1272,7 @@ base::expected<uint32_t, NullOrIOError> AssetManager2::GetResourceId(
		return base::unexpected(std::nullopt);
		}

		void AssetManager2::RebuildFilterList(bool filter_incompatible_configs) {
		void AssetManager2::RebuildFilterList() {
		for (PackageGroup& group : package_groups_) {
		for (ConfiguredPackage& impl : group.packages_) {
		// Destroy it.
		@@ -1343,14 +1282,11 @@ void AssetManager2::RebuildFilterList(bool filter_incompatible_configs) {
		new (&impl.filtered_configs_) ByteBucketArray<FilteredConfigGroup>();

		// Create the filters here.
		impl.loaded_package_->ForEachTypeSpec([&](const TypeSpec* spec, uint8_t type_index) {
		FilteredConfigGroup& group = impl.filtered_configs_.editItemAt(type_index);
		const auto iter_end = spec->types + spec->type_count;
		for (auto iter = spec->types; iter != iter_end; ++iter) {
		ResTable_config this_config;
		this_config.copyFromDtoH((*iter)->config);
		if (!filter_incompatible_configs \|\| this_config.match(configuration_)) {
		group.type_configs.push_back(TypeConfig{*iter, this_config});
		impl.loaded_package_->ForEachTypeSpec([&](const TypeSpec& type_spec, uint8_t type_id) {
		FilteredConfigGroup& group = impl.filtered_configs_.editItemAt(type_id - 1);
		for (const auto& type_entry : type_spec.type_entries) {
		if (type_entry.config.match(configuration_)) {
		group.type_entries.push_back(&type_entry);
		}
		}
		});

libs/androidfw/LoadedArsc.cpp

+30 −64

Original line number	Diff line number	Diff line
		@@ -33,7 +33,6 @@
		#endif
		#endif

		#include "androidfw/ByteBucketArray.h"
		#include "androidfw/Chunk.h"
		#include "androidfw/ResourceUtils.h"
		#include "androidfw/Util.h"
		@@ -49,36 +48,24 @@ namespace {
		// Builder that helps accumulate Type structs and then create a single
		// contiguous block of memory to store both the TypeSpec struct and
		// the Type structs.
		class TypeSpecPtrBuilder {
		public:
		explicit TypeSpecPtrBuilder(incfs::verified_map_ptr<ResTable_typeSpec> header)
		: header_(header) {
		}
		struct TypeSpecBuilder {
		explicit TypeSpecBuilder(incfs::verified_map_ptr<ResTable_typeSpec> header) : header_(header) {}

		void AddType(incfs::verified_map_ptr<ResTable_type> type) {
		types_.push_back(type);
		TypeSpec::TypeEntry& entry = type_entries.emplace_back();
		entry.config.copyFromDtoH(type->config);
		entry.type = type;
		}

		TypeSpecPtr Build() {
		// Check for overflow.
		using ElementType = incfs::verified_map_ptr<ResTable_type>;
		if ((std::numeric_limits<size_t>::max() - sizeof(TypeSpec)) / sizeof(ElementType) <
		types_.size()) {
		return {};
		}
		TypeSpec* type_spec =
		(TypeSpec)::malloc(sizeof(TypeSpec) + (types_.size() sizeof(ElementType)));
		type_spec->type_spec = header_;
		type_spec->type_count = types_.size();
		memcpy(type_spec + 1, types_.data(), types_.size() * sizeof(ElementType));
		return TypeSpecPtr(type_spec);
		TypeSpec Build() {
		return {header_, std::move(type_entries)};
		}

		private:
		DISALLOW_COPY_AND_ASSIGN(TypeSpecPtrBuilder);
		DISALLOW_COPY_AND_ASSIGN(TypeSpecBuilder);

		incfs::verified_map_ptr<ResTable_typeSpec> header_;
		std::vector<incfs::verified_map_ptr<ResTable_type>> types_;
		std::vector<TypeSpec::TypeEntry> type_entries;
		};

		} // namespace
		@@ -322,15 +309,10 @@ base::expected<incfs::map_ptr<ResTable_entry>, NullOrIOError> LoadedPackage::Get
		}

		base::expected<std::monostate, IOError> LoadedPackage::CollectConfigurations(
		bool exclude_mipmap, std::set<ResTable_config>* out_configs) const {
		const size_t type_count = type_specs_.size();
		for (size_t i = 0; i < type_count; i++) {
		const TypeSpecPtr& type_spec = type_specs_[i];
		if (type_spec == nullptr) {
		continue;
		}
		bool exclude_mipmap, std::set<ResTable_config>* out_configs) const {\
		for (const auto& type_spec : type_specs_) {
		if (exclude_mipmap) {
		const int type_idx = type_spec->type_spec->id - 1;
		const int type_idx = type_spec.first - 1;
		const auto type_name16 = type_string_pool_.stringAt(type_idx);
		if (UNLIKELY(IsIOError(type_name16))) {
		return base::unexpected(GetIOError(type_name16.error()));
		@@ -354,11 +336,8 @@ base::expected<std::monostate, IOError> LoadedPackage::CollectConfigurations(
		}
		}

		const auto iter_end = type_spec->types + type_spec->type_count;
		for (auto iter = type_spec->types; iter != iter_end; ++iter) {
		ResTable_config config;
		config.copyFromDtoH((*iter)->config);
		out_configs->insert(config);
		for (const auto& type_entry : type_spec.second.type_entries) {
		out_configs->insert(type_entry.config);
		}
		}
		return {};
		@@ -366,23 +345,16 @@ base::expected<std::monostate, IOError> LoadedPackage::CollectConfigurations(

		void LoadedPackage::CollectLocales(bool canonicalize, std::set<std::string>* out_locales) const {
		char temp_locale[RESTABLE_MAX_LOCALE_LEN];
		const size_t type_count = type_specs_.size();
		for (size_t i = 0; i < type_count; i++) {
		const TypeSpecPtr& type_spec = type_specs_[i];
		if (type_spec != nullptr) {
		const auto iter_end = type_spec->types + type_spec->type_count;
		for (auto iter = type_spec->types; iter != iter_end; ++iter) {
		ResTable_config configuration;
		configuration.copyFromDtoH((*iter)->config);
		if (configuration.locale != 0) {
		configuration.getBcp47Locale(temp_locale, canonicalize);
		for (const auto& type_spec : type_specs_) {
		for (const auto& type_entry : type_spec.second.type_entries) {
		if (type_entry.config.locale != 0) {
		type_entry.config.getBcp47Locale(temp_locale, canonicalize);
		std::string locale(temp_locale);
		out_locales->insert(std::move(locale));
		}
		}
		}
		}
		}

		base::expected<uint32_t, NullOrIOError> LoadedPackage::FindEntryByName(
		const std::u16string& type_name, const std::u16string& entry_name) const {
		@@ -398,14 +370,13 @@ base::expected<uint32_t, NullOrIOError> LoadedPackage::FindEntryByName(
		return base::unexpected(key_idx.error());
		}

		const TypeSpec* type_spec = type_specs_[*type_idx].get();
		const TypeSpec* type_spec = GetTypeSpecByTypeIndex(*type_idx);
		if (type_spec == nullptr) {
		return base::unexpected(std::nullopt);
		}

		const auto iter_end = type_spec->types + type_spec->type_count;
		for (auto iter = type_spec->types; iter != iter_end; ++iter) {
		const incfs::verified_map_ptr<ResTable_type>& type = *iter;
		for (const auto& type_entry : type_spec->type_entries) {
		const incfs::verified_map_ptr<ResTable_type>& type = type_entry.type;

		size_t entry_count = dtohl(type->entryCount);
		for (size_t entry_idx = 0; entry_idx < entry_count; entry_idx++) {
		@@ -492,7 +463,7 @@ std::unique_ptr<const LoadedPackage> LoadedPackage::Load(const Chunk& chunk,
		// A map of TypeSpec builders, each associated with an type index.
		// We use these to accumulate the set of Types available for a TypeSpec, and later build a single,
		// contiguous block of memory that holds all the Types together with the TypeSpec.
		std::unordered_map<int, std::unique_ptr<TypeSpecPtrBuilder>> type_builder_map;
		std::unordered_map<int, std::unique_ptr<TypeSpecBuilder>> type_builder_map;

		ChunkIterator iter(chunk.data_ptr(), chunk.data_size());
		while (iter.HasNext()) {
		@@ -562,9 +533,9 @@ std::unique_ptr<const LoadedPackage> LoadedPackage::Load(const Chunk& chunk,
		return {};
		}

		std::unique_ptr<TypeSpecPtrBuilder>& builder_ptr = type_builder_map[type_spec->id - 1];
		std::unique_ptr<TypeSpecBuilder>& builder_ptr = type_builder_map[type_spec->id];
		if (builder_ptr == nullptr) {
		builder_ptr = util::make_unique<TypeSpecPtrBuilder>(type_spec.verified());
		builder_ptr = util::make_unique<TypeSpecBuilder>(type_spec.verified());
		loaded_package->resource_ids_.set(type_spec->id, entry_count);
		} else {
		LOG(WARNING) << StringPrintf("RES_TABLE_TYPE_SPEC_TYPE already defined for ID %02x",
		@@ -584,7 +555,7 @@ std::unique_ptr<const LoadedPackage> LoadedPackage::Load(const Chunk& chunk,
		}

		// Type chunks must be preceded by their TypeSpec chunks.
		std::unique_ptr<TypeSpecPtrBuilder>& builder_ptr = type_builder_map[type->id - 1];
		std::unique_ptr<TypeSpecBuilder>& builder_ptr = type_builder_map[type->id];
		if (builder_ptr != nullptr) {
		builder_ptr->AddType(type.verified());
		} else {
		@@ -722,14 +693,9 @@ std::unique_ptr<const LoadedPackage> LoadedPackage::Load(const Chunk& chunk,

		// Flatten and construct the TypeSpecs.
		for (auto& entry : type_builder_map) {
		uint8_t type_idx = static_cast<uint8_t>(entry.first);
		TypeSpecPtr type_spec_ptr = entry.second->Build();
		if (type_spec_ptr == nullptr) {
		LOG(ERROR) << "Too many type configurations, overflow detected.";
		return {};
		}

		loaded_package->type_specs_.editItemAt(type_idx) = std::move(type_spec_ptr);
		TypeSpec type_spec = entry.second->Build();
		uint8_t type_id = static_cast<uint8_t>(entry.first);
		loaded_package->type_specs_[type_id] = std::move(type_spec);
		}

		return std::move(loaded_package);

libs/androidfw/include/androidfw/AssetManager2.h

+12 −17

Original line number	Diff line number	Diff line
		@@ -101,12 +101,7 @@ class AssetManager2 {
		// Only pass invalidate_caches=false when it is known that the structure
		// change in ApkAssets is due to a safe addition of resources with completely
		// new resource IDs.
		//
		// Only pass in filter_incompatible_configs=false when you want to load all
		// configurations (including incompatible ones) such as when constructing an
		// idmap.
		bool SetApkAssets(const std::vector<const ApkAssets*>& apk_assets, bool invalidate_caches = true,
		bool filter_incompatible_configs = true);
		bool SetApkAssets(const std::vector<const ApkAssets*>& apk_assets, bool invalidate_caches = true);

		inline const std::vector<const ApkAssets*> GetApkAssets() const {
		return apk_assets_;
		@@ -298,6 +293,12 @@ class AssetManager2 {
		// data failed.
		base::expected<const ResolvedBag*, NullOrIOError> ResolveBag(SelectedValue& value) const;

		// Returns the android::ResTable_typeSpec flags of the resource ID.
		//
		// Returns a null error if the resource could not be resolved, or an I/O error if reading
		// resource data failed.
		base::expected<uint32_t, NullOrIOError> GetResourceTypeSpecFlags(uint32_t resid) const;

		const std::vector<uint32_t> GetBagResIdStack(uint32_t resid) const;

		// Resets the resource resolution structures in preparation for the next resource retrieval.
		@@ -330,15 +331,10 @@ class AssetManager2 {
		private:
		DISALLOW_COPY_AND_ASSIGN(AssetManager2);

		struct TypeConfig {
		incfs::verified_map_ptr<ResTable_type> type;
		ResTable_config config;
		};

		// A collection of configurations and their associated ResTable_type that match the current
		// AssetManager configuration.
		struct FilteredConfigGroup {
		std::vector<TypeConfig> type_configs;
		std::vector<const TypeSpec::TypeEntry*> type_entries;
		};

		// Represents an single package.
		@@ -413,7 +409,7 @@ class AssetManager2 {

		// Triggers the re-construction of lists of types that match the set configuration.
		// This should always be called when mutating the AssetManager's configuration or ApkAssets set.
		void RebuildFilterList(bool filter_incompatible_configs = true);
		void RebuildFilterList();

		// Retrieves the APK paths of overlays that overlay non-system packages.
		std::set<std::string> GetNonSystemOverlayPaths() const;
		@@ -460,13 +456,9 @@ class AssetManager2 {
		enum class Type {
		INITIAL,
		BETTER_MATCH,
		BETTER_MATCH_LOADER,
		OVERLAID,
		OVERLAID_LOADER,
		SKIPPED,
		SKIPPED_LOADER,
		NO_ENTRY,
		NO_ENTRY_LOADER,
		};

		// Marks what kind of override this step was.
		@@ -477,6 +469,9 @@ class AssetManager2 {

		// Marks the package name of the better resource found in this step.
		const std::string* package_name;

		//
		ApkAssetsCookie cookie = kInvalidCookie;
		};

		// Last resolved resource ID.

libs/androidfw/include/androidfw/LoadedArsc.h

+19 −23

File changed.

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