multithreading

问题 For starters, I'm on python 2.7.5 and Windows x64, my app is targeted at those parameters. I'm in need of a way to cancel a raw_input after a certain amount of time has passed. Currently I have my main thread starting two child threads, one is the timer (threading.Timer) and the other fires the raw_input. These both return a value to a Queue.queue that the main thread monitors. It then acts on what is sent to the queue. # snip... q = Queue.queue() # spawn user thread user = threading.Thread

问题 For starters, I'm on python 2.7.5 and Windows x64, my app is targeted at those parameters. I'm in need of a way to cancel a raw_input after a certain amount of time has passed. Currently I have my main thread starting two child threads, one is the timer (threading.Timer) and the other fires the raw_input. These both return a value to a Queue.queue that the main thread monitors. It then acts on what is sent to the queue. # snip... q = Queue.queue() # spawn user thread user = threading.Thread

问题 The Javadoc says that the tasks will be executed sequentially. But does sequentially here mean that the sequence will be the order that the tasks are submitted? Or does it mean that only one task will be done at a time, but may not do them in the order they were submitted? 回答1: The javadoc says: Creates an Executor that uses a single worker thread operating off an unbounded queue A queue respects the insertion order. So yes, tasks will be executed in the order they were submitted. 来源： https:/

问题 The Javadoc says that the tasks will be executed sequentially. But does sequentially here mean that the sequence will be the order that the tasks are submitted? Or does it mean that only one task will be done at a time, but may not do them in the order they were submitted? 回答1: The javadoc says: Creates an Executor that uses a single worker thread operating off an unbounded queue A queue respects the insertion order. So yes, tasks will be executed in the order they were submitted. 来源： https:/

问题 I have a requirement in which 28 threads have to complete some functionality. I have created these threads as in anonymous inner classes like : Thread t=new Thread(new Runnable(){public void run() {//code }} ); t.start(); Now I want that the further execution should start after all these threads have finished there work. Note : I am confused about join() method as it makes my threads run sequentially. So can anyone suggest me how can I make main thread run once these threads are done with

问题 I have a requirement in which 28 threads have to complete some functionality. I have created these threads as in anonymous inner classes like : Thread t=new Thread(new Runnable(){public void run() {//code }} ); t.start(); Now I want that the further execution should start after all these threads have finished there work. Note : I am confused about join() method as it makes my threads run sequentially. So can anyone suggest me how can I make main thread run once these threads are done with

问题 To get a servlet request in Struts 2 we can use either ServletRequestAware or ServletActionContext . However, in a particular internet resource, it is told that ServletRequestAware should be used instead of ServletActionContext . Does that have something to do with the fact that ServletActionContext will be a shared resource in a multi-threaded environment or is there any other reason behind this? 回答1: The ServletActionContext is a helper class that contains only static methods, one of them

问题 I would like to implement a button to stop a thread with a process, it works but not as expected: i can't delete the thread object. ( EDIT: The reference to the thread object seems to be deleted, but the signals are not disconnected automatically by deleting the thread object, i can access it anyway via the signal.) I have a modul with a class thread_worker and a function for complex processing which is running as process: from PySide.QtCore import * from PySide.QtGui import * import

问题 I would like to implement a button to stop a thread with a process, it works but not as expected: i can't delete the thread object. ( EDIT: The reference to the thread object seems to be deleted, but the signals are not disconnected automatically by deleting the thread object, i can access it anyway via the signal.) I have a modul with a class thread_worker and a function for complex processing which is running as process: from PySide.QtCore import * from PySide.QtGui import * import

问题 I am trying to learn TCP server/client interaction. I want to know how I would listen to a port all the time with GUI. Currently I am using this code: private void Form1_Load(object sender, EventArgs e) { CreateServer(); } void CreateServer() { TcpListener tcp = new TcpListener(25565); tcp.Start(); Thread t = new Thread(() => { while (true) { var tcpClient = tcp.AcceptTcpClient(); ThreadPool.QueueUserWorkItem((_) => { Socket s = tcp.AcceptSocket(); console.Invoke((MethodInvoker)delegate {