First commit plugin, update build sh

packages/shared_preferences/.gitignore

@@ -0,0 +1,31 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
+/pubspec.lock
+**/doc/api/
+.dart_tool/
+.packages
+build/
+.metadata

packages/shared_preferences/README.md

@@ -0,0 +1,3 @@
+# shared_preferences
+
+A new Flutter FFI plugin project.

packages/shared_preferences/analysis_options.yaml

@@ -0,0 +1,4 @@
+include: package:flutter_lints/flutter.yaml
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

packages/shared_preferences/aurora/CMakeLists.txt

@@ -0,0 +1,12 @@
+cmake_minimum_required(VERSION 3.10)
+
+set(PLUGIN_NAME shared_preferences)
+project(${PLUGIN_NAME} LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+set(CMAKE_CXX_FLAGS "-Wall -Wextra -Wno-psabi")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3")
+
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../src ${CMAKE_CURRENT_BINARY_DIR}/shared)

packages/shared_preferences/example/.gitignore

@@ -0,0 +1,44 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

packages/shared_preferences/example/README.md

@@ -0,0 +1,16 @@
+# shared_preferences_example
+
+Demonstrates how to use the shared_preferences plugin.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook)
+
+For help getting started with Flutter development, view the
+[online documentation](https://docs.flutter.dev/), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

packages/shared_preferences/example/analysis_options.yaml

@@ -0,0 +1,29 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at
+  # https://dart-lang.github.io/linter/lints/index.html.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

packages/shared_preferences/example/aurora/.gitignore

@@ -0,0 +1 @@
+flutter/ephemeral

packages/shared_preferences/example/aurora/CMakeLists.txt

@@ -0,0 +1,47 @@
+cmake_minimum_required(VERSION 3.10)
+project(com.example.shared_preferences_example LANGUAGES CXX)
+
+include(GNUInstallDirs)
+
+set(BINARY_NAME ${CMAKE_PROJECT_NAME})
+set(FLUTTER_DIR ${CMAKE_CURRENT_SOURCE_DIR}/flutter)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+set(CMAKE_CXX_FLAGS "-Wall -Wextra")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3")
+
+set(CMAKE_SKIP_RPATH OFF)
+set(CMAKE_INSTALL_RPATH "\$ORIGIN/../share/${BINARY_NAME}/lib")
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(FlutterEmbedder REQUIRED IMPORTED_TARGET flutter-embedder)
+
+add_executable(${BINARY_NAME} main.cpp ${FLUTTER_DIR}/generated_plugin_registrant.cpp)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::FlutterEmbedder)
+target_include_directories(${BINARY_NAME} PRIVATE ${FLUTTER_DIR})
+
+include(flutter/generated_plugins.cmake)
+
+set(PACKAGE_INSTALL_DIR    ${CMAKE_INSTALL_DATADIR}/${BINARY_NAME})
+set(DESKTOP_INSTALL_DIR    ${CMAKE_INSTALL_DATADIR}/applications)
+set(ICONS_INSTALL_ROOT_DIR ${CMAKE_INSTALL_DATADIR}/icons/hicolor)
+
+add_custom_command(TARGET ${BINARY_NAME} POST_BUILD
+                   COMMAND ${CMAKE_COMMAND} -E copy
+                   ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/libflutter-embedder.so
+                   ${PROJECT_BINARY_DIR}/bundle/lib/libflutter-embedder.so)
+
+install(FILES     ${PROJECT_BINARY_DIR}/bundle/icudtl.dat     DESTINATION ${PACKAGE_INSTALL_DIR})
+install(DIRECTORY ${PROJECT_BINARY_DIR}/bundle/flutter_assets DESTINATION ${PACKAGE_INSTALL_DIR})
+install(DIRECTORY ${PROJECT_BINARY_DIR}/bundle/lib            DESTINATION ${PACKAGE_INSTALL_DIR})
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+install(FILES desktop/${BINARY_NAME}.desktop DESTINATION ${DESKTOP_INSTALL_DIR})
+
+foreach(ICONS_SIZE 86x86 108x108 128x128 172x172)
+    install(FILES icons/${ICONS_SIZE}.png
+            RENAME ${BINARY_NAME}.png
+            DESTINATION ${ICONS_INSTALL_ROOT_DIR}/${ICONS_SIZE}/apps/)
+endforeach(ICONS_SIZE)

packages/shared_preferences/example/aurora/desktop/com.example.shared_preferences_example.desktop

@@ -0,0 +1,12 @@
+[Desktop Entry]
+Type=Application
+Name=shared_preferences_example
+Comment=Demonstrates how to use the shared_preferences plugin.
+Icon=com.example.shared_preferences_example
+Exec=/usr/bin/com.example.shared_preferences_example
+X-Nemo-Application-Type=silica-qt5
+
+[X-Application]
+Permissions=
+OrganizationName=com.example
+ApplicationName=shared_preferences_example

packages/shared_preferences/example/aurora/flutter/generated_plugin_registrant.cpp

@@ -0,0 +1,14 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include <flutter/application.h>
+
+#include "generated_plugin_registrant.h"
+
+void RegisterPlugins() {
+    Application::RegisterPlugins({
+    });
+}

packages/shared_preferences/example/aurora/flutter/generated_plugin_registrant.h

@@ -0,0 +1,12 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT
+#define GENERATED_PLUGIN_REGISTRANT
+
+void RegisterPlugins();
+
+#endif /* GENERATED_PLUGIN_REGISTRANT */

packages/shared_preferences/example/aurora/flutter/generated_plugins.cmake

@@ -0,0 +1,31 @@
+#
+# Generated file, do not edit.
+#
+set(ROOT_PROJECT_BINARY_DIR "${PROJECT_BINARY_DIR}")
+
+function(add_library TARGET)
+    _add_library(${TARGET} ${ARGN})
+
+    if(NOT "${TARGET}" MATCHES "^PkgConfig::.*")
+      add_custom_command(TARGET ${TARGET} POST_BUILD
+                        COMMAND ${CMAKE_COMMAND} -E copy
+                        "$<TARGET_FILE:${TARGET}>"
+                        "${ROOT_PROJECT_BINARY_DIR}/bundle/lib/$<TARGET_FILE_NAME:${TARGET}>")
+    endif(NOT "${TARGET}" MATCHES "^PkgConfig::.*")
+endfunction()
+
+list(APPEND FLUTTER_PLATFORM_PLUGIN_LIST
+)
+
+list(APPEND FLUTTER_FFI_PLUGIN_LIST
+    shared_preferences
+)
+
+foreach(PLUGIN ${FLUTTER_PLATFORM_PLUGIN_LIST})
+    add_subdirectory(flutter/ephemeral/.plugin_symlinks/${PLUGIN}/aurora plugins/${PLUGIN})
+    target_link_libraries(${BINARY_NAME} PRIVATE ${PLUGIN}_platform_plugin)
+endforeach(PLUGIN)
+
+foreach(FFI_PLUGIN ${FLUTTER_FFI_PLUGIN_LIST})
+    add_subdirectory(flutter/ephemeral/.plugin_symlinks/${FFI_PLUGIN}/aurora plugins/${FFI_PLUGIN})
+endforeach(FFI_PLUGIN)

packages/shared_preferences/example/aurora/main.cpp

@@ -0,0 +1,10 @@
+#include <flutter/application.h>
+#include "generated_plugin_registrant.h"
+
+int main(int argc, char *argv[]) {
+    Application::Initialize(argc, argv);
+    Application::SetPixelRatio(1.8);
+    RegisterPlugins();
+    Application::Launch();
+    return 0;
+}

packages/shared_preferences/example/aurora/rpm/com.example.shared_preferences_example.spec

@@ -0,0 +1,31 @@
+%global __provides_exclude_from ^%{_datadir}/%{name}/lib/.*$
+%global __requires_exclude ^lib(dconf|flutter-embedder|maliit-glib|appmanifest-.+|.+_platform_plugin)\\.so.*$
+
+Name: com.example.shared_preferences_example
+Summary: Demonstrates how to use the shared_preferences plugin.
+Version: 0.1.0
+Release: 1
+License: Proprietary
+Source0: %{name}-%{version}.tar.zst
+
+BuildRequires: cmake
+BuildRequires: pkgconfig(flutter-embedder)
+
+%description
+%{summary}.
+
+%prep
+%autosetup
+
+%build
+%cmake -DCMAKE_BUILD_TYPE=%{_flutter_build_type}
+%make_build
+
+%install
+%make_install
+
+%files
+%{_bindir}/%{name}
+%{_datadir}/%{name}/*
+%{_datadir}/applications/%{name}.desktop
+%{_datadir}/icons/hicolor/*/apps/%{name}.png

packages/shared_preferences/example/lib/main.dart

@@ -0,0 +1,75 @@
+import 'package:flutter/material.dart';
+import 'dart:async';
+
+import 'package:shared_preferences/shared_preferences.dart'
+    as shared_preferences;
+
+void main() {
+  runApp(const MyApp());
+}
+
+class MyApp extends StatefulWidget {
+  const MyApp({super.key});
+
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  late int sumResult;
+  late Future<int> sumAsyncResult;
+
+  @override
+  void initState() {
+    super.initState();
+    sumResult = shared_preferences.sum(1, 2);
+    sumAsyncResult = shared_preferences.sumAsync(3, 4);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    const textStyle = TextStyle(fontSize: 25);
+    const spacerSmall = SizedBox(height: 10);
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text('Native Packages'),
+        ),
+        body: SingleChildScrollView(
+          child: Container(
+            padding: const EdgeInsets.all(10),
+            child: Column(
+              children: [
+                const Text(
+                  'This calls a native function through FFI that is shipped as source in the package. '
+                  'The native code is built as part of the Flutter Runner build.',
+                  style: textStyle,
+                  textAlign: TextAlign.center,
+                ),
+                spacerSmall,
+                Text(
+                  'sum(1, 2) = $sumResult',
+                  style: textStyle,
+                  textAlign: TextAlign.center,
+                ),
+                spacerSmall,
+                FutureBuilder<int>(
+                  future: sumAsyncResult,
+                  builder: (BuildContext context, AsyncSnapshot<int> value) {
+                    final displayValue =
+                        (value.hasData) ? value.data : 'loading';
+                    return Text(
+                      'await sumAsync(3, 4) = $displayValue',
+                      style: textStyle,
+                      textAlign: TextAlign.center,
+                    );
+                  },
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

packages/shared_preferences/example/pubspec.lock

@@ -0,0 +1,175 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.9.0"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.1"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.16.0"
+  cupertino_icons:
+    dependency: "direct main"
+    description:
+      name: cupertino_icons
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.5"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.1"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.12"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.5"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.0"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.2"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.4"
+  shared_preferences:
+    dependency: "direct main"
+    description:
+      path: ".."
+      relative: true
+    source: path
+    version: "0.0.1"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.10.0"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.1"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.12"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.2"
+sdks:
+  dart: ">=2.18.6 <3.0.0"
+  flutter: ">=2.11.0"

packages/shared_preferences/example/pubspec.yaml

@@ -0,0 +1,98 @@
+name: shared_preferences_example
+description: Demonstrates how to use the shared_preferences plugin.
+
+# The following line prevents the package from being accidentally published to
+# pub.dev using `flutter pub publish`. This is preferred for private packages.
+publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+
+# The following defines the version and build number for your application.
+# A version number is three numbers separated by dots, like 1.2.43
+# followed by an optional build number separated by a +.
+# Both the version and the builder number may be overridden in flutter
+# build by specifying --build-name and --build-number, respectively.
+# In Android, build-name is used as versionName while build-number used as versionCode.
+# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
+# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
+# Read more about iOS versioning at
+# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
+# In Windows, build-name is used as the major, minor, and patch parts
+# of the product and file versions while build-number is used as the build suffix.
+version: 1.0.0+1
+
+environment:
+  sdk: '>=2.18.6 <3.0.0'
+
+# Dependencies specify other packages that your package needs in order to work.
+# To automatically upgrade your package dependencies to the latest versions
+# consider running `flutter pub upgrade --major-versions`. Alternatively,
+# dependencies can be manually updated by changing the version numbers below to
+# the latest version available on pub.dev. To see which dependencies have newer
+# versions available, run `flutter pub outdated`.
+dependencies:
+  flutter:
+    sdk: flutter
+
+  shared_preferences:
+    # When depending on this package from a real application you should use:
+    #   shared_preferences: ^x.y.z
+    # See https://dart.dev/tools/pub/dependencies#version-constraints
+    # The example app is bundled with the plugin so we use a path dependency on
+    # the parent directory to use the current plugin's version.
+    path: ../
+
+  # The following adds the Cupertino Icons font to your application.
+  # Use with the CupertinoIcons class for iOS style icons.
+  cupertino_icons: ^1.0.2
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+  # The "flutter_lints" package below contains a set of recommended lints to
+  # encourage good coding practices. The lint set provided by the package is
+  # activated in the `analysis_options.yaml` file located at the root of your
+  # package. See that file for information about deactivating specific lint
+  # rules and activating additional ones.
+  flutter_lints: ^2.0.0
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter packages.
+flutter:
+
+  # The following line ensures that the Material Icons font is
+  # included with your application, so that you can use the icons in
+  # the material Icons class.
+  uses-material-design: true
+
+  # To add assets to your application, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware
+
+  # For details regarding adding assets from package dependencies, see
+  # https://flutter.dev/assets-and-images/#from-packages
+
+  # To add custom fonts to your application, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts from package dependencies,
+  # see https://flutter.dev/custom-fonts/#from-packages

packages/shared_preferences/ffigen.yaml

@@ -0,0 +1,22 @@
+# Run with `flutter pub run ffigen --config ffigen.yaml`.
+name: SharedPreferencesBindings
+llvm-path:
+  - '/usr/lib/llvm-14/lib/libclang.so' # Ubuntu 22.04
+  - '/usr/lib/llvm-15/lib/libclang.so' # Ubuntu 23.04
+description: |
+  Bindings for `src/shared_preferences.h`.
+
+  Regenerate bindings with `flutter pub run ffigen --config ffigen.yaml`.
+output: 'lib/shared_preferences_bindings_generated.dart'
+headers:
+  entry-points:
+    - 'src/shared_preferences.h'
+  include-directives:
+    - 'src/shared_preferences.h'
+preamble: |
+  // ignore_for_file: always_specify_types
+  // ignore_for_file: camel_case_types
+  // ignore_for_file: non_constant_identifier_names
+comments:
+  style: any
+  length: full

packages/shared_preferences/lib/shared_preferences.dart

@@ -0,0 +1,131 @@
+
+import 'dart:async';
+import 'dart:ffi';
+import 'dart:io';
+import 'dart:isolate';
+
+import 'shared_preferences_bindings_generated.dart';
+
+/// A very short-lived native function.
+///
+/// For very short-lived functions, it is fine to call them on the main isolate.
+/// They will block the Dart execution while running the native function, so
+/// only do this for native functions which are guaranteed to be short-lived.
+int sum(int a, int b) => _bindings.sum(a, b);
+
+/// A longer lived native function, which occupies the thread calling it.
+///
+/// Do not call these kind of native functions in the main isolate. They will
+/// block Dart execution. This will cause dropped frames in Flutter applications.
+/// Instead, call these native functions on a separate isolate.
+///
+/// Modify this to suit your own use case. Example use cases:
+///
+/// 1. Reuse a single isolate for various different kinds of requests.
+/// 2. Use multiple helper isolates for parallel execution.
+Future<int> sumAsync(int a, int b) async {
+  final SendPort helperIsolateSendPort = await _helperIsolateSendPort;
+  final int requestId = _nextSumRequestId++;
+  final _SumRequest request = _SumRequest(requestId, a, b);
+  final Completer<int> completer = Completer<int>();
+  _sumRequests[requestId] = completer;
+  helperIsolateSendPort.send(request);
+  return completer.future;
+}
+
+const String _libName = 'shared_preferences';
+
+/// The dynamic library in which the symbols for [SharedPreferencesBindings] can be found.
+final DynamicLibrary _dylib = () {
+  if (Platform.isMacOS || Platform.isIOS) {
+    return DynamicLibrary.open('$_libName.framework/$_libName');
+  }
+  if (Platform.isAndroid || Platform.isLinux) {
+    return DynamicLibrary.open('lib$_libName.so');
+  }
+  if (Platform.isWindows) {
+    return DynamicLibrary.open('$_libName.dll');
+  }
+  throw UnsupportedError('Unknown platform: ${Platform.operatingSystem}');
+}();
+
+/// The bindings to the native functions in [_dylib].
+final SharedPreferencesBindings _bindings = SharedPreferencesBindings(_dylib);
+
+
+/// A request to compute `sum`.
+///
+/// Typically sent from one isolate to another.
+class _SumRequest {
+  final int id;
+  final int a;
+  final int b;
+
+  const _SumRequest(this.id, this.a, this.b);
+}
+
+/// A response with the result of `sum`.
+///
+/// Typically sent from one isolate to another.
+class _SumResponse {
+  final int id;
+  final int result;
+
+  const _SumResponse(this.id, this.result);
+}
+
+/// Counter to identify [_SumRequest]s and [_SumResponse]s.
+int _nextSumRequestId = 0;
+
+/// Mapping from [_SumRequest] `id`s to the completers corresponding to the correct future of the pending request.
+final Map<int, Completer<int>> _sumRequests = <int, Completer<int>>{};
+
+/// The SendPort belonging to the helper isolate.
+Future<SendPort> _helperIsolateSendPort = () async {
+  // The helper isolate is going to send us back a SendPort, which we want to
+  // wait for.
+  final Completer<SendPort> completer = Completer<SendPort>();
+
+  // Receive port on the main isolate to receive messages from the helper.
+  // We receive two types of messages:
+  // 1. A port to send messages on.
+  // 2. Responses to requests we sent.
+  final ReceivePort receivePort = ReceivePort()
+    ..listen((dynamic data) {
+      if (data is SendPort) {
+        // The helper isolate sent us the port on which we can sent it requests.
+        completer.complete(data);
+        return;
+      }
+      if (data is _SumResponse) {
+        // The helper isolate sent us a response to a request we sent.
+        final Completer<int> completer = _sumRequests[data.id]!;
+        _sumRequests.remove(data.id);
+        completer.complete(data.result);
+        return;
+      }
+      throw UnsupportedError('Unsupported message type: ${data.runtimeType}');
+    });
+
+  // Start the helper isolate.
+  await Isolate.spawn((SendPort sendPort) async {
+    final ReceivePort helperReceivePort = ReceivePort()
+      ..listen((dynamic data) {
+        // On the helper isolate listen to requests and respond to them.
+        if (data is _SumRequest) {
+          final int result = _bindings.sum_long_running(data.a, data.b);
+          final _SumResponse response = _SumResponse(data.id, result);
+          sendPort.send(response);
+          return;
+        }
+        throw UnsupportedError('Unsupported message type: ${data.runtimeType}');
+      });
+
+    // Send the the port to the main isolate on which we can receive requests.
+    sendPort.send(helperReceivePort.sendPort);
+  }, receivePort.sendPort);
+
+  // Wait until the helper isolate has sent us back the SendPort on which we
+  // can start sending requests.
+  return completer.future;
+}();

packages/shared_preferences/lib/shared_preferences_bindings_generated.dart

@@ -0,0 +1,69 @@
+// ignore_for_file: always_specify_types
+// ignore_for_file: camel_case_types
+// ignore_for_file: non_constant_identifier_names
+
+// AUTO GENERATED FILE, DO NOT EDIT.
+//
+// Generated by `package:ffigen`.
+import 'dart:ffi' as ffi;
+
+/// Bindings for `src/shared_preferences.h`.
+///
+/// Regenerate bindings with `flutter pub run ffigen --config ffigen.yaml`.
+///
+class SharedPreferencesBindings {
+  /// Holds the symbol lookup function.
+  final ffi.Pointer<T> Function<T extends ffi.NativeType>(String symbolName)
+      _lookup;
+
+  /// The symbols are looked up in [dynamicLibrary].
+  SharedPreferencesBindings(ffi.DynamicLibrary dynamicLibrary)
+      : _lookup = dynamicLibrary.lookup;
+
+  /// The symbols are looked up with [lookup].
+  SharedPreferencesBindings.fromLookup(
+      ffi.Pointer<T> Function<T extends ffi.NativeType>(String symbolName)
+          lookup)
+      : _lookup = lookup;
+
+  /// A very short-lived native function.
+  ///
+  /// For very short-lived functions, it is fine to call them on the main isolate.
+  /// They will block the Dart execution while running the native function, so
+  /// only do this for native functions which are guaranteed to be short-lived.
+  int sum(
+    int a,
+    int b,
+  ) {
+    return _sum(
+      a,
+      b,
+    );
+  }
+
+  late final _sumPtr =
+      _lookup<ffi.NativeFunction<ffi.IntPtr Function(ffi.IntPtr, ffi.IntPtr)>>(
+          'sum');
+  late final _sum = _sumPtr.asFunction<int Function(int, int)>();
+
+  /// A longer lived native function, which occupies the thread calling it.
+  ///
+  /// Do not call these kind of native functions in the main isolate. They will
+  /// block Dart execution. This will cause dropped frames in Flutter applications.
+  /// Instead, call these native functions on a separate isolate.
+  int sum_long_running(
+    int a,
+    int b,
+  ) {
+    return _sum_long_running(
+      a,
+      b,
+    );
+  }
+
+  late final _sum_long_runningPtr =
+      _lookup<ffi.NativeFunction<ffi.IntPtr Function(ffi.IntPtr, ffi.IntPtr)>>(
+          'sum_long_running');
+  late final _sum_long_running =
+      _sum_long_runningPtr.asFunction<int Function(int, int)>();
+}

packages/shared_preferences/pubspec.yaml

@@ -0,0 +1,73 @@
+name: shared_preferences
+description: A new Flutter FFI plugin project.
+version: 0.0.1
+homepage:
+
+environment:
+  sdk: '>=2.18.6 <3.0.0'
+  flutter: ">=2.11.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  plugin_platform_interface: ^2.0.2
+
+dev_dependencies:
+  ffi: ^1.2.1
+  ffigen: ^5.0.1
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^2.0.0
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter packages.
+flutter:
+  # This section identifies this Flutter project as a plugin project.
+  # The 'pluginClass' specifies the class (in Java, Kotlin, Swift, Objective-C, etc.)
+  # which should be registered in the plugin registry. This is required for
+  # using method channels.
+  # The Android 'package' specifies package in which the registered class is.
+  # This is required for using method channels on Android.
+  # The 'ffiPlugin' specifies that native code should be built and bundled.
+  # This is required for using `dart:ffi`.
+  # All these are used by the tooling to maintain consistency when
+  # adding or updating assets for this project.
+  #
+  # Please refer to README.md for a detailed explanation.
+  plugin:
+    platforms:
+      aurora:
+        ffiPlugin: true
+
+  # To add assets to your plugin package, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+  #
+  # For details regarding assets in packages, see
+  # https://flutter.dev/assets-and-images/#from-packages
+  #
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware
+
+  # To add custom fonts to your plugin package, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts in packages, see
+  # https://flutter.dev/custom-fonts/#from-packages

packages/shared_preferences/src/CMakeLists.txt

@@ -0,0 +1,17 @@
+# The Flutter tooling requires that developers have CMake 3.10 or later
+# installed. You should not increase this version, as doing so will cause
+# the plugin to fail to compile for some customers of the plugin.
+cmake_minimum_required(VERSION 3.10)
+
+project(shared_preferences_library VERSION 0.0.1 LANGUAGES C)
+
+add_library(shared_preferences SHARED
+  "shared_preferences.c"
+)
+
+set_target_properties(shared_preferences PROPERTIES
+  PUBLIC_HEADER shared_preferences.h
+  OUTPUT_NAME "shared_preferences"
+)
+
+target_compile_definitions(shared_preferences PUBLIC DART_SHARED_LIB)

packages/shared_preferences/src/shared_preferences.c

@@ -0,0 +1,23 @@
+#include "shared_preferences.h"
+
+// A very short-lived native function.
+//
+// For very short-lived functions, it is fine to call them on the main isolate.
+// They will block the Dart execution while running the native function, so
+// only do this for native functions which are guaranteed to be short-lived.
+FFI_PLUGIN_EXPORT intptr_t sum(intptr_t a, intptr_t b) { return a + b; }
+
+// A longer-lived native function, which occupies the thread calling it.
+//
+// Do not call these kind of native functions in the main isolate. They will
+// block Dart execution. This will cause dropped frames in Flutter applications.
+// Instead, call these native functions on a separate isolate.
+FFI_PLUGIN_EXPORT intptr_t sum_long_running(intptr_t a, intptr_t b) {
+  // Simulate work.
+#if _WIN32
+  Sleep(5000);
+#else
+  usleep(5000 * 1000);
+#endif
+  return a + b;
+}

packages/shared_preferences/src/shared_preferences.h

@@ -0,0 +1,30 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#if _WIN32
+#include <windows.h>
+#else
+#include <pthread.h>
+#include <unistd.h>
+#endif
+
+#if _WIN32
+#define FFI_PLUGIN_EXPORT __declspec(dllexport)
+#else
+#define FFI_PLUGIN_EXPORT
+#endif
+
+// A very short-lived native function.
+//
+// For very short-lived functions, it is fine to call them on the main isolate.
+// They will block the Dart execution while running the native function, so
+// only do this for native functions which are guaranteed to be short-lived.
+FFI_PLUGIN_EXPORT intptr_t sum(intptr_t a, intptr_t b);
+
+// A longer lived native function, which occupies the thread calling it.
+//
+// Do not call these kind of native functions in the main isolate. They will
+// block Dart execution. This will cause dropped frames in Flutter applications.
+// Instead, call these native functions on a separate isolate.
+FFI_PLUGIN_EXPORT intptr_t sum_long_running(intptr_t a, intptr_t b);

script/build_example.sh

@@ -1,27 +1,31 @@
 #!/bin/bash
 
-## Build example, sign rpm, upload rpm to device
+## Build example, sign rpm, upload/install/run rpm to device
 
 ## Usage
+##
 ## chmod +x ./build_example.sh
-## ./build_example.sh -p xdga_directories -u 192.168.1.59:/home/defaultuser/Downloads -k /home/user/sign/system_keys
+##
+## ./build_example.sh \
+##   -p xdga_directories \
+##   -d <ip>:<password> \
+##   -s /home/user/sign/system_keys
 
 ## Flatter path
 FLATTER="$HOME/.local/opt/flutter-sdk/bin/flutter"
 
-## https://community.omprussia.ru/documentation/software_development/psdk/setup.html
+## https://developer.auroraos.ru/doc/software_development/psdk/setup
 ## Install Platform SDK path
-## PLATFORM_SDK_ROOT="/srv/mer"
 ## You may not have set the PSDK_DIR environment variable.
-## export PSDK_DIR="$PLATFORM_SDK_ROOT/sdks/sfossdk"
+## export PSDK_DIR=$HOME/AuroraPlatformSDK/sdks/aurora_psdk
 
-while getopts p:u:k: flag; do
+while getopts p:d:s: flag; do
   case "${flag}" in
   p) package=${OPTARG} ;;
-  u) upload=${OPTARG} ;;
+  d) device=${OPTARG} ;;
-  k) keys_folder=${OPTARG} ;;
+  s) sign=${OPTARG} ;;
   *)
-    echo "usage: $0 [-v] [-r]" >&2
+    echo "usage: $0 [-p] [-d] [-s]" >&2
     exit 1
     ;;
   esac
@@ -42,16 +46,16 @@ else
   $FLATTER build aurora --release
 fi
 
-if [ -n "$keys_folder" ]; then
+if [ -n "$sign" ]; then
 
-  key=$(ls "$keys_folder"/*key.pem)
+  key=$(ls "$sign"/*key.pem)
 
   if [ -z "$key" ]; then
     echo "Key *key.pem not found."
     exit
   fi
 
-  cert=$(ls "$keys_folder"/*cert.pem)
+  cert=$(ls "$sign"/*cert.pem)
 
   if [ -z "$cert" ]; then
     echo "Key *cert.pem not found."
@@ -65,10 +69,22 @@ if [ -n "$keys_folder" ]; then
     build/aurora/arm/release/RPMS/*.rpm
 fi
 
-if [ -n "$upload" ]; then
+if [ -n "$device" ]; then
+
+  IFS=':' read -ra ADDR <<< "$device"
+
+  D_IP="${ADDR[0]}"
+  D_PASS="${ADDR[1]}"
 
   # shellcheck disable=SC2012
   rpm=$(ls "$PWD"/build/aurora/arm/release/RPMS/*.rpm | sort -r | head -n 1)
 
-  scp "$rpm" defaultuser@"$upload"
+  # upload rpm
-fi
+  scp "$rpm" defaultuser@"$D_IP:/home/defaultuser/Downloads"
+
+  # install rpm
+  ssh -t defaultuser@$D_IP "echo $D_PASS | devel-su pkcon -y install-local /home/defaultuser/Downloads/*$package*.rpm" 
+
+  # run application
+  ssh -t defaultuser@$D_IP "/usr/bin/com.example.${package}_example"
+fi