I/O Objects T H E N E T W O R K I N G T S F R O M S C R A T C H Robert Leahy - rleahy@rleahy.caNetworking TS & Asio ISO C++ Networking is blocked on Executors (P0443) Target for Networking is composed asynchronous operations depend on those guarantees being honored transitively 6I/O Objects “I/O objects” provide a handle to low level asynchronous functionality within the framework of the Networking one or more I/O objects) is a useful pattern 19Service Named Type Requirement Service objects own completion handlers thereby breaking the potential ownership cycle Service objects are owned by an

std::string Bar std::stringObject Introspection (OI) Goals • Byte level memory footprint analysis for objects • Complete object type hierarchies • Dynamic allocations and containers • Optimised, production (Cumulative) Feature folly::small_vector 414132 8 2.359 10 0 88 25315061 • 2800 nested objects of type ‘FooBar’ were analysed. Top of the list: • UnusedSz (cumulative) = (10 - 2.359) * 8 * 4141321 Example 2 • 1000 objects of type ‘FooBar’ were sampled and introspectedApplied Example 2 • 1000 objects of type ‘FooBar’ were sampled and introspectedApplied Example 2 • 1000 objects of type ‘FooBar’

com © 2024 Bloomberg Finance L.P. All rights reserved. • Create a basic HTTP server. • Allow a single-threaded server handling multiple clients. • Use the sender/receiver asynchronous framework.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 5.9 File Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.12 UserDict —Class wrapper for dictionary objects . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 8.13 UserList —Class wrapper for list objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 8.14 UserString —Class wrapper for string objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 8.15 types —Names for built-in types . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 5.9 File Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.12 UserDict —Class wrapper for dictionary objects . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 8.13 UserList —Class wrapper for list objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 8.14 UserString —Class wrapper for string objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 8.15 types —Names for built-in types . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 5.9 File Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.12 UserDict —Class wrapper for dictionary objects . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 8.13 UserList —Class wrapper for list objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 8.14 UserString —Class wrapper for string objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 8.15 types —Names for built-in types . . . . . . . . . . . . . .

thread, but note that the function passed to run_in_executor should avoid referencing any Tornado objects. run_in_executor is the recommended way to interact with blocking code. 7Tornado Documentation, RequestHandler which is subclassed to create web applications, and various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library protocols. The Tornado web framework and HTTP server together offer a full-stack alternative to WSGI. While it is possible to use the Tornado HTTP server as a container for other WSGI frameworks (WSGIContainer)

of the hypervisor, additional internal modules provide extra functionality. For example, the RDP server, which can deliver the graphical output of a VM remotely to an RDP client, is a separate module that web ser- vice ships in a stand-alone executable (vboxwebsrv) that, when running, acts as an HTTP server, accepts SOAP connections and processes them. Since the entire web service API is publicly described and the C++ programming language (or with any other programming language that can handle COM/XPCOM objects, such as Java, Visual Basic or C#), then you can use the COM/XPCOM API directly. VirtualBox comes

of the hypervisor, additional internal modules provide extra functionality. For example, the RDP server, which can deliver the graphical output of a VM remotely to an RDP client, is a separate module that web ser- vice ships in a stand-alone executable (vboxwebsrv) that, when running, acts as an HTTP server, accepts SOAP connections and processes them. Since the entire web service API is publicly described and the C++ programming language (or with any other programming language that can handle COM/XPCOM objects, such as Java, Visual Basic or C#), then you can use the COM/XPCOM API directly. VirtualBox comes

thread, but note that the function passed to run_in_executor should avoid referencing any Tornado objects. run_in_executor is the recommended way to interact with blocking code. asyncio Integration Tornado httpserver — Non-blocking HTTP server tornado.httpclient — Asynchronous HTTP client tornado.httputil — Manipulate HTTP headers and URLs tornado.http1connection – HTTP/1.x client/server implementation Asynchronous utilities tornado.tcpclient — IOStream connection factory tornado.tcpserver — Basic IOStream-based TCP server Coroutines and concurrency tornado.gen — Generator-based coroutines tornado.locks – Synchronization