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docs: add note about rt::spawn compat with tokio::main

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Rob Ede 2023-09-15 22:20:43 +01:00
parent e1c48dba26
commit 043bc88f73
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6
actix-web/src/rt.rs
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@ -5,6 +5,7 @@
//! architecture in [`actix-rt`]'s docs. //! architecture in [`actix-rt`]'s docs.
//! //!
//! # Running Actix Web Without Macros //! # Running Actix Web Without Macros
//!
//! ```no_run //! ```no_run
//! use actix_web::{middleware, rt, web, App, HttpRequest, HttpServer}; //! use actix_web::{middleware, rt, web, App, HttpRequest, HttpServer};
//! //!
@ -25,6 +26,7 @@
//! ``` //! ```
//! //!
//! # Running Actix Web Using `#[tokio::main]` //! # Running Actix Web Using `#[tokio::main]`
//!
//! If you need to run something that uses Tokio's work stealing functionality alongside Actix Web, //! If you need to run something that uses Tokio's work stealing functionality alongside Actix Web,
//! you can run Actix Web under `#[tokio::main]`. The [`Server`](crate::dev::Server) object returned //! you can run Actix Web under `#[tokio::main]`. The [`Server`](crate::dev::Server) object returned
//! from [`HttpServer::run`](crate::HttpServer::run) can also be [`spawn`]ed, if preferred. //! from [`HttpServer::run`](crate::HttpServer::run) can also be [`spawn`]ed, if preferred.
@ -32,6 +34,10 @@
//! Note that `actix` actor support (and therefore WebSocket support through `actix-web-actors`) //! Note that `actix` actor support (and therefore WebSocket support through `actix-web-actors`)
//! still require `#[actix_web::main]` since they require a [`System`] to be set up. //! still require `#[actix_web::main]` since they require a [`System`] to be set up.
//! //!
//! Also note that calls to this module's [`spawn()`] re-export require an `#[actix_web::main]`
//! runtime (or a manually configured `LocalSet`) since it makes calls into to the current thread's
//! `LocalSet`, which `#[tokio::main]` does not set up.
//!
//! ```no_run //! ```no_run
//! use actix_web::{get, middleware, rt, web, App, HttpRequest, HttpServer}; //! use actix_web::{get, middleware, rt, web, App, HttpRequest, HttpServer};
//! //!