What can we cover today? oRise of "JavaScript-driven Native" oIntro to NativeScript oNativeScript core concepts o“Hello World” oExtending with plugins oDebugging JavaScript Why are we here? How did NativeScript Native Modules • UI Thread vs JS Thread • Angular/Vue/Vanilla vs React • Progress vs Facebook • Apache 2.0 vs BSD+ JavaScript-Driven Native • Share code • Reuse existing skills/teams • Reuse existing Intro to NativeScript What is it? How does it work? 2013 2014 2015 2016 2017 Early prototype s “Core” engineerin g Public launch Adoption ramp-up Mass adoption Project Timeline NativeScript

CMake 也有 include 功能 • 和 C/C++ 的 #include 一样， CMake 也有一个 include 命令。 • 你写 include(XXX) ，则他会在 CMAKE_MODULE_PATH 这个列表 中的所有路径下查找 XXX.cmake 这个文件。 • 这样你可以在 XXX.cmake 里写一些你常用的函数，宏，变量等。 十三、你知道吗？ CMake 也有 include include 功能 • 和 C/C++ 的 #include 一样， CMake 也有一个 include 命令。 • 你写 include(XXX) ，则他会在 CMAKE_MODULE_PATH 这个列表 中的所有路径下查找 XXX.cmake 这个文件。 • 这样你可以在 XXX.cmake 里写一些你常用的函数，宏，变量等。 macro 和 function 的区别 • macro 寻找系统中安装的第三方库并链接他们 find_package 命令 • 常用参数列表一览： • find_package( [version] [EXACT] [QUIET] [CONFIG] [MODULE] • [REQUIRED] [[COMPONENTS] [components...]] • [OPTIONAL_COMPONENTS components

Integrated into enterprise products: VIC and PKS GitHub Repo: https://github.com/go harbor/harbor/ Apache 2.0 license An open source trusted cloud native registry project HARBOR More integrations in system scopes • Mark labels to image and chart Harbor Architecture API Routing API Routing Core Service (API/Auth/GUI) Image Registry Trusted Content Vulnerability Scanning Job Service

Crypto Core 利用 Rust 重塑移动应用开发 RCC_android RCC_ios https://github.com/KeystoneHQ/rust-crypto-core https://github.com/KeystoneHQ/rcc_android https://github.com/aaronisme/rcc_ios Rust Crypto Core Core shared on different platform. - Signer - cryptography support - Blockchain Support - Publish each module as independent package 利用 Rust 重塑移动应用开发 Photo / image / chart RCC_Android 利用 Rust 重塑移动应用开发 Hard to define the return value - Hard to process the error? Panic? App Crash ？ Treat the rust module as an independent service - Command <> Response - Using the protobuf as the data encoding/decoding

кластером как ОДНИМ РЕСУРСОМ ClickHouse Operator ClickHouseInstallation YAML file Лицензия: Apache 2.0, Распространяется как Docker image ClickHouse cluster resources kubectl apply K8S API Спецификация

Overview Part 04 CppCon 2019  CppCon 2020 • Announced at CppCon 2019 • github.com/microsoft/STL • Apache License v2.0 with LLVM Exception • Implemented ~50 C++20 features • Majority from our amazing contributors

Library Quick Reference  Founder of the Belgian C++ Users Group (BeCPP) C++204 Agenda  C++23 Core Language  Explicit Object Parameters  if consteval  Multidimensional Subscript Operator  Attributes Containers Heterogeneous Erasure  Removed Features  Garbage Collection SupportC++23 Core Language6 Agenda  C++23 Core Language  Explicit Object Parameters  if consteval  Multidimensional Subscript int n) { if (n < 2) { return n; } return self(n - 1) + self(n - 2); };12 Agenda  C++23 Core Language  Explicit Object Parameters  if consteval  Multidimensional Subscript Operator  Attributes

of the box, it also provides the knobs needed to fine tune to different cases. Flexible Tokio Core Queue-Based Modules in Tokio • Channel • Scheduler • Tokio uses Channel for communication between Senders Senders Receive Receivers Perf Gaps: CAS(Compare And Swap) can't perfectly scale with core count. Tokio Channel • Each worker has own run queue • Steal when own run queue is empty From Adding new entries from any core or thread • Picking the next entry by any core or thread Conclusion: • DLB channel scales with core count much better than SW channels • Core count >2 shows advantage

functions, …)  Separation into module interface files and module implementation files is possible but not needed  Can be structured with submodules and module partitions  No need for include guards never leak from, modules  Order of module imports is not important8 Modules  Create a module: // cppcon.cppm – Module Interface File export module cppcon; // Module declaration namespace CppCon { "Welcome to CppCon 2020!"; } export auto GetWelcome() { return GetWelcomeHelper(); } }  Consume a module: // main.cpp import cppcon; int main() { std::cout << CppCon::GetWelcome(); }9 Modules  C++20

能不如 Tokio smol Rayon 并非异步运行时。它通过同步 多线程模型提供了并行迭代器功能， 适用于处理 CPU 密集型计算任务 rayon 现有框架无法完美适配移动端（一） Core Thread Thread Worker Worker task task Local queue Local queue Tokio 采用了如右图这种 GMP 模式： • 一核可以绑定多线程，每个线程拥有一个 queue Core 高权重线程 Worker Worker 任务优先级调度 根据工作线程的优先级进行绑核（大小核） • 高优先级任务在大核执行，高性能 • 低优先级任务在小核执行，节省能耗 Task priority and quality of service Big Core Little Core 高优先级线程 低优先级线程 普通优先级线程 Set core-affinity