block_on(async { let temp_runtime = tokio::runtime::Builder::new_current_thread().build().unwrap(); temp_runtime.block_on(async {}); // ERROR! 此方法不能在异步上下文中调用!! tokio::spawn(async{ let temp_runtime = tokio::runtime::Builder::new_current_thread().build().unwrap(...
runtime/scheduler/multi_thread/worker/launch()把上面创建的Workers全部启动,spawn_thread指出每个Worker都运行在一个新的thread上。 这里注意到,launch()对每一个调用传递了一个run()方法,正如你所猜到的那样,这个方法是每一个thread一直loop的,我们看到spawn_task()把这个Task放入队列,之后的thread取出来,执行,所...
异步运行任务 usestd::{io, thread, time::Duration};usetokio::runtime::Runtime;fnmain()->io::Result<()> {letruntime= Runtime::new()?; runtime.spawn(async{println!("hello tokio");println!("{}", thread::current().name().unwrap()); });println!("{}", thread::current().name(...
听起来非常简单, 我们把上例中的运行时构造步骤进行更改, 并将 rt.spawn 替换为函数调用 tokio::spawn: use std::time::Duration; fn main() { let rt = tokio::runtime::Builder::new_current_thread().enable_all().build().unwrap(); etokio::spawn(async move { println!("Printing in a ...
fn main(){let max_task =1;let rt = runtime::new_multi_thread().worker_threads(max_task).build().unwrap();rt.block_on(async {println!("tokio_multi_thread ");foriin0..100{println!("run {}", i);tokio::spawn(async move {println!("spawn {}", i);thread::from_secs(2));})...
use tokio::runtime;pub fn main() {letrt = runtime::new_multi_thread().enable_all().build().unwrap();rt.block_on(async{foriin0..8{println!("num {}", i);tokio::spawn(asyncmove {loop {letmut sum: i32 =0;foriin0..100000000{sum = sum.overflowing_add(i).0;}println!("sum ...
;tokio::spawn(asyncmove{letmutbuf =[0;1024];// In a loop, read data from the socket and write the data back.loop{letn =matchsocket.read(&mutbuf).await{// socket closedOk(0)=>return,Ok(n)=> n,Err(e)=>{eprintln!("failed to read from socket; err = {:?}",e);return;}};...
let data = Arc::new(Mutex::new(0)); let data_clone = Arc::clone(&data); let handle = thread::spawn(move || { let mut data = data_clone.lock().unwrap(); *data += 1; }); // 在主线程中修改数据 let mut data = data.lock().unwrap(); ...
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; tokio::spawn(async move { let mut buf = [0; 1024]; // In a loop, read data from the socket and write the data back. loop { let n = match socket.read(&mut buf).await { // socket closed Ok(0) => return, Ok(n) => n, Err(e) => { eprintln!("failed to read from...