Merge "Add PersistableBundle ndk and AIDL type" into main (897c6c67) · Commits · e / os / android_frameworks_native

Android.bp

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		@@ -89,6 +89,12 @@ filegroup {
		],
		}

		aidl_library {
		name: "PersistableBundle_aidl",
		hdrs: ["aidl/binder/android/os/PersistableBundle.aidl"],
		strip_import_prefix: "aidl/binder",
		}

		cc_library_headers {
		name: "libandroid_headers_private",
		export_include_dirs: ["include/private"],

aidl/binder/android/os/PersistableBundle.aidl

+1 −1

Original line number	Diff line number	Diff line
		@@ -17,4 +17,4 @@

		package android.os;

		@JavaOnlyStableParcelable parcelable PersistableBundle cpp_header "binder/PersistableBundle.h";
		@JavaOnlyStableParcelable @NdkOnlyStableParcelable parcelable PersistableBundle cpp_header "binder/PersistableBundle.h" ndk_header "android/persistable_bundle_aidl.h";

libs/binder/ndk/Android.bp

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		@@ -60,6 +60,7 @@ cc_library {
		"libbinder.cpp",
		"parcel.cpp",
		"parcel_jni.cpp",
		"persistable_bundle.cpp",
		"process.cpp",
		"stability.cpp",
		"status.cpp",

libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h

0 → 100644

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Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2023 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		#pragma once

		#include <android/binder_parcel.h>
		#include <android/persistable_bundle.h>
		#include <sys/cdefs.h>

		#include <set>
		#include <sstream>

		namespace aidl::android::os {

		/**
		* Wrapper class that enables interop with AIDL NDK generation
		* Takes ownership of the APersistableBundle* given to it in reset() and will automatically
		* destroy it in the destructor, similar to a smart pointer container
		*/
		class PersistableBundle {
		public:
		PersistableBundle() noexcept : mPBundle(APersistableBundle_new()) {}
		// takes ownership of the APersistableBundle*
		PersistableBundle(APersistableBundle* _Nonnull bundle) noexcept : mPBundle(bundle) {}
		// takes ownership of the APersistableBundle*
		PersistableBundle(PersistableBundle&& other) noexcept : mPBundle(other.release()) {}
		// duplicates, does not take ownership of the APersistableBundle*
		PersistableBundle(const PersistableBundle& other) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		mPBundle = APersistableBundle_dup(other.mPBundle);
		}
		}
		// duplicates, does not take ownership of the APersistableBundle*
		PersistableBundle& operator=(const PersistableBundle& other) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		mPBundle = APersistableBundle_dup(other.mPBundle);
		}
		return *this;
		}

		~PersistableBundle() { reset(); }

		binder_status_t readFromParcel(const AParcel* _Nonnull parcel) {
		reset();
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return APersistableBundle_readFromParcel(parcel, &mPBundle);
		} else {
		return STATUS_FAILED_TRANSACTION;
		}
		}

		binder_status_t writeToParcel(AParcel* _Nonnull parcel) const {
		if (!mPBundle) {
		return STATUS_BAD_VALUE;
		}
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return APersistableBundle_writeToParcel(mPBundle, parcel);
		} else {
		return STATUS_FAILED_TRANSACTION;
		}
		}

		/**
		* Destroys any currently owned APersistableBundle* and takes ownership of the given
		* APersistableBundle*
		*
		* @param pBundle The APersistableBundle to take ownership of
		*/
		void reset(APersistableBundle* _Nullable pBundle = nullptr) noexcept {
		if (mPBundle) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		APersistableBundle_delete(mPBundle);
		}
		mPBundle = nullptr;
		}
		mPBundle = pBundle;
		}

		/**
		* Check the actual contents of the bundle for equality. This is typically
		* what should be used to check for equality.
		*/
		bool deepEquals(const PersistableBundle& rhs) const {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return APersistableBundle_isEqual(get(), rhs.get());
		} else {
		return false;
		}
		}

		/**
		* NOTE: This does NOT check the contents of the PersistableBundle. This is
		* implemented for ordering. Use deepEquals() to check for equality between
		* two different PersistableBundle objects.
		*/
		inline bool operator==(const PersistableBundle& rhs) const { return get() == rhs.get(); }
		inline bool operator!=(const PersistableBundle& rhs) const { return get() != rhs.get(); }

		inline bool operator<(const PersistableBundle& rhs) const { return get() < rhs.get(); }
		inline bool operator>(const PersistableBundle& rhs) const { return get() > rhs.get(); }
		inline bool operator>=(const PersistableBundle& rhs) const { return !(*this < rhs); }
		inline bool operator<=(const PersistableBundle& rhs) const { return !(*this > rhs); }

		PersistableBundle& operator=(PersistableBundle&& other) noexcept {
		reset(other.release());
		return *this;
		}

		/**
		* Stops managing any contained APersistableBundle*, returning it to the caller. Ownership
		* is released.
		* @return APersistableBundle* or null if this was empty
		*/
		[[nodiscard]] APersistableBundle* _Nullable release() noexcept {
		APersistableBundle* _Nullable ret = mPBundle;
		mPBundle = nullptr;
		return ret;
		}

		inline std::string toString() const {
		if (!mPBundle) {
		return "<PersistableBundle: null>";
		} else if (__builtin_available(android __ANDROID_API_V__, *)) {
		std::ostringstream os;
		os << "<PersistableBundle: ";
		os << "size: " << std::to_string(APersistableBundle_size(mPBundle));
		os << " >";
		return os.str();
		}
		return "<PersistableBundle (unknown)>";
		}

		int32_t size() const {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return APersistableBundle_size(mPBundle);
		} else {
		return 0;
		}
		}

		int32_t erase(const std::string& key) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return APersistableBundle_erase(mPBundle, key.c_str());
		} else {
		return 0;
		}
		}

		void putBoolean(const std::string& key, bool val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		APersistableBundle_putBoolean(mPBundle, key.c_str(), val);
		}
		}

		void putInt(const std::string& key, int32_t val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		APersistableBundle_putInt(mPBundle, key.c_str(), val);
		}
		}

		void putLong(const std::string& key, int64_t val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		APersistableBundle_putLong(mPBundle, key.c_str(), val);
		}
		}

		void putDouble(const std::string& key, double val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		APersistableBundle_putDouble(mPBundle, key.c_str(), val);
		}
		}

		void putString(const std::string& key, const std::string& val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		APersistableBundle_putString(mPBundle, key.c_str(), val.c_str());
		}
		}

		void putBooleanVector(const std::string& key, const std::vector<bool>& vec) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		// std::vector<bool> has no ::data().
		int32_t num = vec.size();
		if (num > 0) {
		bool* newVec = (bool)malloc(num sizeof(bool));
		if (newVec) {
		for (int32_t i = 0; i < num; i++) {
		newVec[i] = vec[i];
		}
		APersistableBundle_putBooleanVector(mPBundle, key.c_str(), newVec, num);
		free(newVec);
		}
		}
		}
		}

		void putIntVector(const std::string& key, const std::vector<int32_t>& vec) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		int32_t num = vec.size();
		if (num > 0) {
		APersistableBundle_putIntVector(mPBundle, key.c_str(), vec.data(), num);
		}
		}
		}
		void putLongVector(const std::string& key, const std::vector<int64_t>& vec) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		int32_t num = vec.size();
		if (num > 0) {
		APersistableBundle_putLongVector(mPBundle, key.c_str(), vec.data(), num);
		}
		}
		}
		void putDoubleVector(const std::string& key, const std::vector<double>& vec) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		int32_t num = vec.size();
		if (num > 0) {
		APersistableBundle_putDoubleVector(mPBundle, key.c_str(), vec.data(), num);
		}
		}
		}
		void putStringVector(const std::string& key, const std::vector<std::string>& vec) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		int32_t num = vec.size();
		if (num > 0) {
		char inVec = (char)malloc(num * sizeof(char*));
		if (inVec) {
		for (int32_t i = 0; i < num; i++) {
		inVec[i] = strdup(vec[i].c_str());
		}
		APersistableBundle_putStringVector(mPBundle, key.c_str(), inVec, num);
		free(inVec);
		}
		}
		}
		}
		void putPersistableBundle(const std::string& key, const PersistableBundle& pBundle) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		APersistableBundle_putPersistableBundle(mPBundle, key.c_str(), pBundle.mPBundle);
		}
		}

		bool getBoolean(const std::string& key, bool* _Nonnull val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return APersistableBundle_getBoolean(mPBundle, key.c_str(), val);
		} else {
		return false;
		}
		}

		bool getInt(const std::string& key, int32_t* _Nonnull val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return APersistableBundle_getInt(mPBundle, key.c_str(), val);
		} else {
		return false;
		}
		}

		bool getLong(const std::string& key, int64_t* _Nonnull val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return APersistableBundle_getLong(mPBundle, key.c_str(), val);
		} else {
		return false;
		}
		}

		bool getDouble(const std::string& key, double* _Nonnull val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return APersistableBundle_getDouble(mPBundle, key.c_str(), val);
		} else {
		return false;
		}
		}

		static char* _Nullable stringAllocator(int32_t bufferSizeBytes, void* _Nullable) {
		return (char*)malloc(bufferSizeBytes);
		}

		bool getString(const std::string& key, std::string* _Nonnull val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		char* outString = nullptr;
		bool ret = APersistableBundle_getString(mPBundle, key.c_str(), &outString,
		&stringAllocator, nullptr);
		if (ret && outString) {
		*val = std::string(outString);
		}
		return ret;
		} else {
		return false;
		}
		}

		template <typename T>
		bool getVecInternal(int32_t (_Nonnull getVec)(const APersistableBundle _Nonnull,
		const char* _Nonnull, T* _Nullable, int32_t),
		const APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
		std::vector<T>* _Nonnull vec) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		int32_t bytes = 0;
		// call first with nullptr to get required size in bytes
		bytes = getVec(pBundle, key, nullptr, 0);
		if (bytes > 0) {
		T* newVec = (T*)malloc(bytes);
		if (newVec) {
		bytes = getVec(pBundle, key, newVec, bytes);
		int32_t elements = bytes / sizeof(T);
		vec->clear();
		for (int32_t i = 0; i < elements; i++) {
		vec->push_back(newVec[i]);
		}
		free(newVec);
		return true;
		}
		}
		}
		return false;
		}

		bool getBooleanVector(const std::string& key, std::vector<bool>* _Nonnull vec) {
		return getVecInternal<bool>(&APersistableBundle_getBooleanVector, mPBundle, key.c_str(),
		vec);
		}
		bool getIntVector(const std::string& key, std::vector<int32_t>* _Nonnull vec) {
		return getVecInternal<int32_t>(&APersistableBundle_getIntVector, mPBundle, key.c_str(),
		vec);
		}
		bool getLongVector(const std::string& key, std::vector<int64_t>* _Nonnull vec) {
		return getVecInternal<int64_t>(&APersistableBundle_getLongVector, mPBundle, key.c_str(),
		vec);
		}
		bool getDoubleVector(const std::string& key, std::vector<double>* _Nonnull vec) {
		return getVecInternal<double>(&APersistableBundle_getDoubleVector, mPBundle, key.c_str(),
		vec);
		}

		// Takes ownership of and frees the char** and its elements.
		// Creates a new set or vector based on the array of char*.
		template <typename T>
		T moveStringsInternal(char* _Nullable* _Nonnull strings, int32_t bufferSizeBytes) {
		if (strings && bufferSizeBytes > 0) {
		int32_t num = bufferSizeBytes / sizeof(char*);
		T ret;
		for (int32_t i = 0; i < num; i++) {
		ret.insert(ret.end(), std::string(strings[i]));
		free(strings[i]);
		}
		free(strings);
		return ret;
		}
		return T();
		}

		bool getStringVector(const std::string& key, std::vector<std::string>* _Nonnull vec) {
		int32_t bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), nullptr, 0,
		&stringAllocator, nullptr);
		if (bytes > 0) {
		char strings = (char)malloc(bytes);
		if (strings) {
		bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), strings, bytes,
		&stringAllocator, nullptr);
		*vec = moveStringsInternal<std::vector<std::string>>(strings, bytes);
		return true;
		}
		}
		return false;
		}

		bool getPersistableBundle(const std::string& key, PersistableBundle* _Nonnull val) {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		APersistableBundle* bundle = nullptr;
		bool ret = APersistableBundle_getPersistableBundle(mPBundle, key.c_str(), &bundle);
		if (ret) {
		*val = PersistableBundle(bundle);
		}
		return ret;
		} else {
		return false;
		}
		}

		std::set<std::string> getKeys(
		int32_t (_Nonnull getTypedKeys)(const APersistableBundle _Nonnull pBundle,
		char* _Nullable* _Nullable outKeys,
		int32_t bufferSizeBytes,
		APersistableBundle_stringAllocator stringAllocator,
		void* _Nullable),
		const APersistableBundle* _Nonnull pBundle) {
		// call first with nullptr to get required size in bytes
		int32_t bytes = getTypedKeys(pBundle, nullptr, 0, &stringAllocator, nullptr);
		if (bytes > 0) {
		char keys = (char)malloc(bytes);
		if (keys) {
		bytes = getTypedKeys(pBundle, keys, bytes, &stringAllocator, nullptr);
		return moveStringsInternal<std::set<std::string>>(keys, bytes);
		}
		}
		return {};
		}

		std::set<std::string> getBooleanKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getBooleanKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getIntKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getIntKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getLongKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getLongKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getDoubleKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getDoubleKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getStringKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getStringKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getBooleanVectorKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getBooleanVectorKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getIntVectorKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getIntVectorKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getLongVectorKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getLongVectorKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getDoubleVectorKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getDoubleVectorKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getStringVectorKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getStringVectorKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getPersistableBundleKeys() {
		if (__builtin_available(android __ANDROID_API_V__, *)) {
		return getKeys(&APersistableBundle_getPersistableBundleKeys, mPBundle);
		} else {
		return {};
		}
		}
		std::set<std::string> getMonKeys() {
		// :P
		return {"c(o,o)b", "c(o,o)b"};
		}

		private:
		inline APersistableBundle* _Nullable get() const { return mPBundle; }
		APersistableBundle* _Nullable mPBundle = nullptr;
		};

		} // namespace aidl::android::os

libs/binder/ndk/include_ndk/android/persistable_bundle.h

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