async fn produce_main(tx: tokio::sync::oneshot::Sender<i32>) { // some cpu job to...
使用async fn是因为我们想进入一个异步上下文。然而,异步函数必须由一个运行时来执行。运行时包含异步任...
usetokio::sync::oneshot;asyncfnsome_computation() ->String{"represents the result of the computation".to_string() }#[tokio::main]asyncfnmain() {let(tx,rx)=oneshot::channel();tokio::spawn(asyncmove{letres=some_computation().await;tx.send(res).unwrap(); });// Do other work while th...
io: implementedget_refandget_mutforSyncIoBridge(#7128) 7天前 tokio rt: add before and after task poll callbacks (#7120) 4天前 .cirrus.yml chore: use [lints] to address unexpected_cfgs lint (#7124) 9天前 .gitignore chore: rm .cargo/config and include in .gitignore (#5707) ...
AsyncReadExt::read_to_end读取流中所有字节直到EOF。 asyncfnwrite() AsyncWriteExt::write向writer中写入一个buffer,返回写入了多少个字节。 asyncfnwrite_all() AsyncReadExt::write_all将整个buffer写入writer。 helper函数# 就像std,tokio::io模块包含了一系列helper函数。比如,tokio::io::copy异步的从一个reade...
Run thein a separate thread and send message to it structMyTask{name:String,}asyncfnhandle_task(task:MyTask){println!("Gottask:{}",task.name);}#[derive(Clone)]structTaskSpawner{spawn:tokio::sync::mpsc::Sender<MyTask>,}implTaskSpawner{fnnew()->Self{let(tx,mutrx)=tokio::sync::mpsc:...
{Command, Connection, Frame,Result};usestd::collections::HashMap;usestd::sync::{Arc, Mutex, MutexGuard};usetokio::net::{TcpListener, TcpStream};typeDatabaseLock= Arc<Mutex<HashMap<String, Bytes>>>;typeDatabase<'a> = MutexGuard<'a, HashMap<String, Bytes>>;#[tokio::main]asyncfnmain...
I'm making a wrapper around tokio-modbus for a device to make it easier to interact with it, but I want to support both sync and async, what's the easiest way to do that? I was thinking maybe-async but since tokio-modbus supports both, maybe there's a better way....
usetokio::sync::Notify;#[tokio::main]asyncfnmain(){letnotify =Notify::new();notify.notify_waiters();notify.notified().await;// never reaches this line} It has nothing to do with being inside/outside the runtime. ybbhchanged the titleIf tokio::sync::Notify notify() is invoked outside...
use tokio::sync::mpsc;#[tokio::main]asyncfnmain(){let(mut tx,mut rx)= mpsc::channel(32); tokio::spawn(asyncmove{ tx.send("hello".to_string()).await.unwrap(); tx.send("world".to_string()).await.unwrap();});whileletSome(msg)= rx.recv().await{println!("{}",...