Vec<Option<T>>可以解决某些情况下需要T所有权的场景 完整代码 usestd::thread::{self, JoinHandle};usestd::sync::{Arc, mpsc, Mutex};typeJob=Box<dynFnOnce() +'static+Send>;enumMessage{ ByeBye,NewJob(Job), }structWorkerwhere{ _id:usize, t:Option<JoinHandle<()>>, }implWorker{fnnew(id:us...
struct ThreadPool { workers: Vec<Worker>,sender: mpsc::Sender<Job>} impl ThreadPool { fn new(size: usize)->Self { assert!(size>0,"Need at least 1 worker!");let(sender,reciever)=mpsc::channel();let reciever=Arc::new(Mutex::new(reciever));let mut workers=Vec::with_capacity(size);...
handlers:Option<Vec<thread::JoinHandle<()>>>, } implThreadPool{ pubfnnew(number:usize)->ThreadPool{ let(tx,rx)=channel::<Task>(); let muthandlers=vec![]; letarx=Arc::new(Mutex::new(rx)); for_in0..number{ letarx=arx.clone(); lethandle=thread::spawn(move|| { whileletOk(task...
(receiver)); let mut workers = Vec::with_capacity(size); // 创建指定数量的工作线程 for id in 0..size { workers.push(Worker::new(id, Arc::clone(&receiver))); } ThreadPool { workers, sender } } // 执行任务,参数为任务闭包 pub fn execute<F>(&self, f: F) where F: FnOnce() ...
thread::spawn与Rust的多线程编程 下面是Rust实现一段简单代码: 执行fn1(耗时3s), 执行fn2(耗时6s), 执行fn3(耗时4s)。 这三个func由先到后依次串行执行,最后打印出总的耗时 use std::time::{Duration, Instant}; use std::thread; fn fn1() { ...
1. 添加threadpool这个crate到你的Cargo.toml配置文件中,如下所示: cargo add threadpool 2.使用线程池重构TCP服务器: usestd::net::{TcpListener,TcpStream};usestd::io::{Read,Write};usestd::sync::{Arc,Mutex};usethreadpool::ThreadPool;fnhandle_client(mutstream:TcpStream){letmutbuffer=[0;512];...
pub struct ThreadPool { thread: Vec<thread::JoinHandle<()>>, } 定义ThreadPool的方法 impl ThreadPool { pub fn new(size: usize) -> ThreadPool { //--snip-- } pub fn execute() //pub fn execute<F>(&self, f: F) // where
# let mut workers = Vec::with_capacity(size); # # for id in 0..size { # workers.push(Worker::new(id, Arc::clone(&receiver))); # } # # ThreadPool { workers, sender } # } # 20.3. 优雅停机与清理 557 # pub fn execute<F>(&self, f: F) ...
pubstructThreadPool{tx:Option<Sender<Task>>,handlers:Option<Vec<thread::JoinHandle<()>>>,}implThreadPool{pubfnnew(number:usize)->ThreadPool{let(tx,rx)=channel::<Task>();letmuthandlers=vec![];letarx=Arc::new(Mutex::new(rx));for_in0..number{letarx=arx.clone();lethandle=thread::spaw...
pub struct ThreadPool { workers: Vec<Worker>, sender: mpsc::Sender<Message>, } // --snip-- impl ThreadPool { // --snip-- pub fn execute<F>(&self, f: F) where F: FnOnce() + Send + 'static { let job = Box::new(f); self.sender.send(Message::NewJob(job)).unwrap(); }...