Deploying the Networking TS Robert Leahy Lead Software Engineer rleahy@rleahy.ca Opening DataConn socket on 0.0.0.0:11653... Started (send SIGINT or SIGTERM to exit) 2021-10-06T04:01:26.490694105Z async_write_state& state, WaitableTimer& timer, Events events, CompletionToken&& token); 16 Events Complex asynchronous operations contain many parts Encapsulating increasing complexity creates a shared framework Shared CompletionToken> decltype(auto) async_wait(CompletionToken&& token); }; 25 Injecting Asynchronous Operations If an asynchronous operation completes immediately (that is, within the thread of execution calling

microbenchmarks and a real-world application • Conclusion 26Synchronous/Asynchronous Mechanisms Boil the water Synchronous Asynchronous Wait Polling Callback Check Do your things Multitasking! 27Taro’s motivation behind Taro • We have presented the Taro C++ programming model - Synchronous and Asynchronous mechanisms • We have presented the Taro coroutine-aware scheduling algorithm • We have presented

T C H Robert Leahy - rleahy@rleahy.caNetworking TS & Asio ISO C++ Networking is blocked on Executors (P0443) Target for Networking is currently C++23 (P0592) Used standalone Asio (1.18.0) to prepare P0443-friendly extensions to the Networking TS shipping in “standalone” Asio & Boost.Asio (P0958) 2async_wait_then_write 3Composed Asynchronous Operations Composing asynchronous operations enables the layered composed asynchronous operations from concrete types Customization points defer decisions to the consumer rather than the author making them arbitrarily 4async_wait_then_write 5Asynchronous Operations

Attributes • Move Semantics • Handling Disappointment • Pattern Matching • Tooling and Ease-of-Coding • Networking • Parallel and Concurrent Computing • Logging and I/O • Numeric Computing • Miscellaneous 69P2966 Attributes • Move Semantics • Handling Disappointment • Pattern Matching • Tooling and Ease-of-Coding • Networking • Parallel and Concurrent Computing • Logging and I/O • Numeric Computing • Miscellaneous 70 individuals writing code for multiple platforms 111Networking 112P2966 requests: networking • A small, fast and low-level layer including sockets • Networking is something every game engine implements by

hardware accelerators. Fully fledged OS at the bottom. ⇒ Lots of concurrency, asynchronous APIs as the default Asynchronous APIs in Adaptive Autosar ara::com::FindServiceHandle find_service_handle = R ara::com::FindServiceHandle) { }); // ... RadarServiceProxy::StopFindService(find_service_handle); Asynchronous APIs in Adaptive Autosar ara::com::FindServiceHandle find_service_handle = RadarServiceProxy::StartFindService( UpdateRate.Get(); // ... }); // ... RadarServiceProxy::StopFindService(find_service_handle); Asynchronous APIs in Adaptive Autosar ara::com::FindServiceHandle find_service_handle = RadarServiceProxy::StartFindService(

data and trading software for use in HFT ● Personal ○ github.com/buildingcpp ■ Work Contracts, Networking, Messaging, Glimpse Instrumentation, etc … ○ github.com/michaelmaniscalco ■ Algorithms and Data Contain its own logic ○ Asynchronous execution ○ Recurrening execution ○ Accesses its own data (user defined ingress) ○ Guaranteed single threaded execution ○ Supports optional asynchronous destruction logic Contain its own logic ○ Asynchronous execution ○ Recurrening execution ○ Accesses its own data (user defined ingress) ○ Guaranteed single threaded execution ○ Supports optional asynchronous destruction logicBasic

single-threaded server handling multiple clients. • Use the sender/receiver asynchronous framework. • Use a minimalistic sender/receiver networking interface ObjectiveTechAtBloomberg.com © 2024 Bloomberg Finance https://github.com/NVIDIA/stdexec.git • https://github.com/beman-project/execution26 • Sender/receiver networking: http://wg21.link/p2762 • Implementation: https://github.com/beman-project/net29 • Async scope:

concurrency 2. Cancellation 3. An extended example3 GOALS FOR THE EXECUTORS PROPOSAL The vision: “An asynchronous analog of the STL” • A full suite of standard async algorithms based on real-world requirements: Libunifex: https://github.com/facebookexperimental/libunifex54 SUMMARY FROM PART 1 1. Vision: “An asynchronous analogue of the STL” 2. Some simple examples, intro to senders 3. The lifecycle of an async • Only algorithms that introduce concurrency need to handle cancellation. • Cancellation is asynchronous and cooperative. • Cancellation is best-effort No guarantee an operation will stop promptly

students • Entertainment Computing Research Group • Efficiency and performance of game engines, AI, networking, VR … • Teaching: 3D Graphics, AI, Physics for games, Game Streaming, … • IFIP (International Coroutines • Normal functions (synchronous) • Stack frame • Gone after return • Coroutines (asynchronous) can • Suspend to wait for a result, resume with same state • First time called: allocate heap

run on desktop, server,␣ ˓→mobile and embedded systems. topics: ('conan', 'poco', 'building', 'networking', 'server', 'mobile', ˓→'embedded') generators: cmake exports: None exports_sources: CMakeLists com/conan-io/conan-center-index Homepage: https://pocoproject.org License: BSL-1.0 Topics: conan, poco, building, networking, server, mobile, embedded Recipe: Cache Binary: Cache Binary remote: conan-center Creation date: "packages":[ { "id":"0000193ac313953e78a4f8e82528100030ca70ee", "options":{ "shared":"False", "asynchronous":"False", "SSL":"False" }, "settings":{ "os":"Linux", "arch":"x86_64", "compiler":"gcc", "build_type":"Debug"