pointer A SRC A hazard pointer is a single-writer multi-reader pointer. set HP to A if SRC == A clear HP 2 3 6 if HP != A HP Safe to delete A A 7 8 SAFE ACCESS If a hazard pointer points to an object

Flutter, is an open source framework by Google for building beautiful, natively compiled, multi- platform applications from a single codebase. - Single codebase - Hot reload - Rendering Engine 利用 Rust Rust 在移动端应 用的价值 Rust is the only advanced choice for cross platform development. 利用 Rust 重塑移动应用开发 Rust 的特点 Why Rust? - Cross platform - Performance - Thread Safe - Memory Safe - Love 利用 Rust Rust 重塑移动应用开发 Rust 在移动应用 开发中的应用 Why Rust? - Cross platform - Performance - Memory Safe - Love 利用 Rust 重塑移动应用开发 PhoTto / image / chart Keystone Keystone is aiming to develop the most secure and

Hybrid Native “1st Gen” X-Plat Native Binary Choice Nativ e Hybri d ? Best experience ? One platform at a time ? Fast to market ? Compromise on UX https://info.dynatrace.com/rs/compuware/images/ APIs provide unified, cross-platform API o Dozens available out of the box o Easy for developers to add o All native APIs still available at JavaScript layer for platform-specific scenarios o NativeScript LiveSync $ tns run //For all connected devices/emulators $ tns run android //Target specific platform $ tns run ios --emulator o Refresh app with latest changes to JS, CSS, XML o No re-build o

single-core CPU machine • Is serverless really the next stage of Internet? Or just a gimmick by cloud platform ➔ Wants to extend the financial computation/storage model to general cases • Limites of On-chain on any dimension. ➔ Multiple dimensions Dataset Models ➔ What is open data? Build an internet platform, but open its data to everyone. ➔ Why we need open data? The business of the closed data model traditional Internet app ➔ But everyone have the chance to download/sync all open data from this platform ➔ On the server side, it is a network, consisting of some/many nodes ➔ Every node has a blockchain

Conformance 2. Code Safety 3. Cross-platform development 4. Developer and Team Productivity Visual Studio Agenda 1. Conformance 2. Code Safety 3. Cross-platform development 4. Developer and Team Productivity /std:c++latest Visual Studio Visual Studio Agenda 1. Conformance 2. Code Safety 3. Cross-platform development 4. Developer and Team Productivity Static Analysis ✴ New and improved checkers in https://aka.ms/cpp/libfuzzer Visual Studio Agenda 1. Conformance 2. Code Safety 3. Cross-platform development 4. Developer and Team Productivity Simplify C++ dependency management with

Enabling two or more disparate entities to work together.Why interoperability? No language or platform is good for everything. Fast inner loop Makes UX easy Has tooling for workload High performance Simplified Wrapper and Interface Generator (SWIG) – 1996 JVM – Java Native Interface (JNI) – 1997 .NET – Platform Invoke (P/Invoke), COM interop, C++/CLI – 2002, 2005 JVM – Java Native Access (JNA) – 2007 Go – scenarios with a Garbage Collector (GC). 1. Handles – Level of indirection. • Usually requires a “platform” API to use the memory. • .NET has GCHandle. • JVM, through JNI, exposes most memory as a handle

Drawbacks Our Story Requirements Do not reinvent the wheel Not modify app under test Cross-platform tests Scale Appium Open source mobile testing framework Not modify app under test Use language -typings -reporting If you don’t configure it, it won’t work. ;) Appium config file: Platform name Platform version Device name Application path https://appium.io/slate/en/master/?javascript#ap

(messaging) 和 错误处理 (error handling) 。 什么是 waPC? WASM 外部函数 接口 FFI Input type Return type Platform 底层 I32 I32 Unknown waPC &[u8] Result,error > Linux x86_64, macOS x86_64 ,Wi ndows Common testing platform 大公司抓包工具的需求 软件测试工具 • 模拟数据规则 • 自动化测试 • Supports http/https/tcp/websocket(MITM) • Can use rust to construct own protocol • Can MITM GRPC • Testing platform • Support HTTP

https://cmake.org/cmake/help/latest/manual/cmake-generator-expressions.7.html#genex:PLATFORM_ID 语法： $<$< 类型 : 值 >: 为真时的表达式 > 比如 $<$<PLATFORM_ID:Windows>:MY_NAME=”Bill Gates”> 在 Windows 平台上会变为 MY_NAME=”Bill Gates” 生成器表达式：如需多个平台可以用逗号分割 https://cmake.org/cmake/help/latest/manual/cmake-generator-expressions.7.html#genex:PLATFORM_ID 判断当前用的是哪一款 C++ 编译器 https://cmake.org/cmake/help/latest/variable/CMAKE_LANG_COMPILER_ID.htm

NativeScript ??? • Telerik Platform ? Theme ? Code Samples ? UI for NativeScript ??? • We already have... UI for NativeScript ??? • Dataform is new! Telerik Platform ? Plugins ? Plugins ? • 250+