在 Tokio 模块中，可以使用 tokio::task::spawn_blocking 函数来创建一个优雅停机任务。下面是一个示例代码：use tokio::signal::unix::{Signal, SIGTERM, SIGINT};use tokio::time::{sleep,Duration};use tokio::task::spawn_blocking;const GRACEFUL_SHUTDOWN_TIMEOUT:u64=30;#[tokio::main]asyncfnmain()...
Cloud Studio代码运行 use std::time::Instant;use tokio::time::{sleep,Duration};#[tokio::main]asyncfnmain(){letnow=Instant::now();letmut handles=Vec::with_capacity(10);foriin0..10{handles.push(my_bg_task(i));// 没有把 Future 变成任务}std::thread::sleep(Duration::from_millis(120)...
let handle = tokio::task::spawn(async_task()); // 等待异步任务完成 // JoinHandle handle.await.unwrap(); } 2.tokio::task::spawn_blocking 这是一个函数,用于将「一个阻塞的操作转换为异步任务」,并在Tokio的线程池中执行。这对于需要执行阻塞操作(如CPU密集型计算)的场景非常有用,以避免阻塞整个Toki...
tokio::runtime::Builder::new_multi_thread() .enable_all() .build() .unwrap() .block_on(async{ println!("Hello world"); }) } 7、tokio::task::spawn_blocking 8、tokio::time::sleep(Duration::new(1, 0)).await; 9、signal structExitSignal(pub&'staticstr); asyncfnlisten_for_signals(...
在Tokio 中,我们可以通过 JoinHandle 来控制异步任务,并使用 abort() 方法来取消任务。以下是一个示例: use tokio::time::{self, Duration}; #[tokio::main] async fn main() { let handle = tokio::spawn(async { // 做一些工作 time::sleep(Duration::from_secs(10)).await; println!("任务完成")...
fnmain(){letmax_task=1;letrt=runtime::Builder::new_multi_thread().worker_threads(max_task).build().unwrap();rt.block_on(async{println!("tokio_multi_thread ");foriin0..100{println!("run {}",i);tokio::spawn(asyncmove{println!("spawn {}",i);thread::sleep(Duration::from_secs(2...
new_multi_thread() .worker_threads(max_task) .build() .unwrap(); rt.block_on(async { println!("tokio_multi_thread "); for i in 0..100 { println!("run {}", i); tokio::spawn(async move { println!("spawn {}", i); thread::sleep(Duration::from_secs(2)); }); } }); }...
tokio::sleep(Duration::from_millis(100)).await; } res } } implSequencerforPlainSequencer{ fngenerate(&self)->Vec{ self.generate_async().await } } 这样就会出现问题,因为generate是一个同步方法,里面是不能直接 await 的。 error[E0728]:`await`isonlyallowedinside`async`functionsandblocks ...
tokio::task::spawn_local(async{ println!("local task 3 "); time::sleep(tokio::time::Duration::from_secs(5)).await; println!("local task 3 done at :{}",now()); }) .await .unwrap(); }); rt.block_on(async{ println!("task in"); ...
tokio::time::sleep(Duration::from_secs(1)).await; println!("After delay"); } ``` 2.创建异步任务并等待其完成: ```rust use tokio::task::spawn_blocking; use tokio::time::Duration; [tokio::main] async fn main() { let result = tokio::task::spawn_blocking( { //阻塞任务,模拟耗时...