self.wrapper.signal_start(); self.wrapper.write(b"ping"); // Unlock after writing self.wrapper.signal_finished(); // Wait for their lock to be released so we can read ifself.wrapper.their_event.wait(Timeout::Infinite).is_ok() { let str = self.wrapper.read(); ifstr != b"pong"...
使用Rust和WebSocket构建点对点网络 这篇文章使用Rust构建基于WebSocket的P2P网络示例,它提供了一种强大而有效的方式来实现节点之间的实时通信。通过理解代码的每个部分,可以扩展和定制这个示例以满足特定需求,无论是分散的应用程序,实时数据共享还是分布式计算任务。 在WebSocket基础设施上创建点对点(P2P)网络似乎是一项艰...
("Hello, World!")) .unwrap()) } #[tokio::main] async fn main() -> Result<(), Box<dyn std::error::Error<'_>>> { let addr = ([127, 0, 0, 1], 3000).into(); let server = Server::bind(&addr).serve(handle).with_graceful_shutdown(async { // Wait for signal }); ...
sem_clone.signal(); }); handles.push(handle); } for handle in handles { handle.join().unwrap(); } } ``` 在这个示例中,我们创建了一个信号量,初始值为3,允许最多3个线程同时访问共享资源。每个线程在执行时首先调用wait方法进行等待,获取信号量后进行处理,完成后再释放信号量。通过这种方式,我们可...
()); empty.signalAll(); lock.unlock(); } public void consume() { // 获得锁 lock.lock(); while (list.size() == 0) { System.out.println("【消费者" + Thread.currentThread().getName() + "】仓库为空"); try { empty.await(); } catch (InterruptedException e) { e.printStackTrace...
// Wait for work core = self.park(core); } } // Signal shutdown self.worker.shared.shutdown(core, self.worker.clone()); Err(()) } image.png 可以看到,Executor核心逻辑其实并不复杂,单纯从队列中获取Task然后执行,不过加入了一些从其他线程队列中偷取任务的逻辑。用户也可以实现自己的Executor。
thread::sleep(duration);// 睡眠指定时间实现计时功能letmutshared_state= thread_shared_state.lock().unwrap();// Signal that the timer has completed and wake up the last// task on which the future was polled, if one exists.// 通知执行器定时器已经完成,可以继续`poll`对应的`Future`了shared_...
But if the signal is disconnected (freed object / through code), then the Future will wait for a wake-up which will never come. Yes, if someone goes out of their way to disconnect the callable, then the future will never complete. I don't see how this can be avoided. I wonder how...
let cpuNum = 7; for _i in 0..cpuNum { let handle = thread::spawn(move || ...
注册和反注册异常信号处理程序:Handler结构体通过实现SignalHandler trait,可以将自身注册为异常信号处理程序,使得当栈溢出异常发生时能够执行相应的代码逻辑。 备份和恢复信号处理器:Handler结构体保存了之前的异常信号处理器,以便在处理栈溢出之后,将信号处理器恢复为之前的状态。这样可以确保不影响在使用Rust之外的代码时...