multithreading

问题 I started studying python a couple of month ago, then I found Jython. Do threads work properly in Jython, since it doesn't have a GIL? If so, can you suggest a good book on concurrency (threading)? 回答1: The best book I've encountered on multithreading is "Java Concurrency in Practice". It's very much concentrating on Java thread concurrency, and is both humbling and exciting when you start to understand the problems and the possibilities introduced by concurrency. The copy I bought a few

问题 I started studying python a couple of month ago, then I found Jython. Do threads work properly in Jython, since it doesn't have a GIL? If so, can you suggest a good book on concurrency (threading)? 回答1: The best book I've encountered on multithreading is "Java Concurrency in Practice". It's very much concentrating on Java thread concurrency, and is both humbling and exciting when you start to understand the problems and the possibilities introduced by concurrency. The copy I bought a few

问题 I have code that creates a CancellationTokenSource and that passes it to a method. I have code in another are of the app that issues a cts.Cancel(); Is there a way that I can cause that method to stop immediately without me having to wait for the two lines inside the while loop to finish? Note that I would be okay if it caused an exception that I could handle. public async Task OnAppearing() { cts = new CancellationTokenSource(); await GetCards(cts.Token); } public async Task GetCards

问题 I'm new to this, so maybe it's trivial to everybody, but I just can't figure out, why this isn't working. I've read about it, tried many way, and still not working. So I want to pause a thread in android (java). I want this to run, freeze the screen for 1 sec, and continue working. That's all. Why isn't this working? public class Game extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.game); runner.join(); runner

问题 I am writing a GUI using pyqt5 (Python 3.6). I am trying to run another thread in parallel of the main GUI. I would like this child thread to terminate when I close the main application. In this example, the child thread is a simple counter. When I close the main GUI, the counter still keeps going. How can I get the thread to end when the GUI window is closed? In the real case I may have a thread that is running operations that takes a few minutes to execute. I am reluctant to use a flag

问题 I am using below code receive the events from Azure Event-Hub https://docs.microsoft.com/en-us/azure/event-hubs/event-hubs-dotnet-framework-getstarted-send#receive-events I want to Handle the requests coming to event-hub Sequentially . For example someone sent 5 events in very quick time, I want to complete request 1 processing then i want take the second request to process. How can i handle the events coming to event-hub Sequentially? 回答1: From the docs, In order to make it sequential you

问题 Closed. This question needs debugging details. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last month . Improve this question I have a problem while executing the following gui. it works normally if there's no msgbox, but when there is a mesbox it blocks. any idea why the gui blocks when there is message. thank you from PyQt5 import QtCore, QtGui, QtWidgets import threading import time class Ui

问题 Closed. This question needs debugging details. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last month . Improve this question I have a problem while executing the following gui. it works normally if there's no msgbox, but when there is a mesbox it blocks. any idea why the gui blocks when there is message. thank you from PyQt5 import QtCore, QtGui, QtWidgets import threading import time class Ui

问题 Closed. This question needs debugging details. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last month . Improve this question I have a problem while executing the following gui. it works normally if there's no msgbox, but when there is a mesbox it blocks. any idea why the gui blocks when there is message. thank you from PyQt5 import QtCore, QtGui, QtWidgets import threading import time class Ui

问题 I'm running a flask server that connects to an iOS client with Flask-Socketio. The server has to process some complicated data, and since that takes a while to solve, I do it in a background job using Redis Queue. Communication works fine normally, but I need to emit to the client, and write to database once the job finishes, and I am trying to do that from the job function (if there is a way to let the app know when the job is finished, the app could handle all communication in one place).