Recent questions tagged multithreading

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multithreading - How this java code produces deadlock?

i am going through oracle docs for deadlock.. i found this code public class Deadlock { static class Friend { ... be a deadlock situation.. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Multi-Thread Firebase function

So I am developing a Firebase function that accepts requests from users and updates few nodes under a branch these users ... how can it be done? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Java Swing : GUI frozen - jstack interpretation

I have a Gui application in swing that prints a ticket on a serial thermal printer. When i hit the button that ... i only ran this thread once. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Synchronization on immutable objects (in java)

Code snippet - 1 class RequestObject implements Runnable { private static Integer nRequests = 0; @Override public void ... fine all the time?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - java - execute each SwingWorker class one after another

I have multiple classes extending the SwingWorker. What I wish to accomplish is to execute each class one after ... accomplish this? Thank you See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Python threading, threads do not close

I have a Python program and when I exit the application with Ctrl-c, the script does not close. My process ... thread not close with Ctrl+c? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - understanding parallel Async Task in android

In my application I am using Async tasks in many places, recently I am facing problem where doInBackground of ... is not getting called. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Parallel-processing in Java; advice needed i.e. on Runnanble/Callable interfaces

Assume that I have a set of objects that need to be analyzed in two different ways, both of which take relatively ... in that case why? Thanks, See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Trying to figure out how to track Pygame events and organize the game's functions

I'm new to Pygame, so I'm still struggling with the whole "events" concept. Basically, my current challenge ... in logic and threading. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Parallel event handling in C#

I'm developing a module that has to handle many events coming from an external system. I've to use a third party ... do this in C# 3.5? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - How to use toast message inside Thread in Android

I am facing some problems when I'm using Toast inside run method of Thread class. My error Logcat 09-16 11:42: ... want to use it. Please help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Python - How can I implement a 'stoppable' thread?

There is a solution posted here to create a stoppable thread. However, I am having some problems understanding ... a regular threaded function. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Understanding python GIL - I/O bound vs CPU bound

From python threading documentation In CPython, due to the Global Interpreter Lock, only one thread can execute Python ... won't work properly? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Java Thread Ping Pong example

I'm trying to understand thread basics, and as a first example I create two thread that write a String on the ... pong... ping pong. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Is there a way to run C++ from a QML WorkerScript?

I have a slow I/O operation that I need to control from a QML UI. The I/O interface is in C++. ... even if not stateful) into a WorkerScript. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Processor Affinity in OpenCL

Can we impose procssor affinity in OpenCl? For example thread# 1 executes on procesor# 5, thread# 2 executes on ... and so on ? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Are c# timers naturally multithreaded?

If I have two system timers firing events at 10 and 20s respectively, are the calls to the event functions ... to let the above events fire See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Thread-safe random number generation for Monte-Carlo integration

Im trying to write something which very quickly calculates random numbers and can be applied on multiple threads. ... ? Many Thanks. Jack See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Multithread program in C++ shows the same performance as a serial one

I just want to write a simple program in C++, which creates two threads and each of them fills vector by ... results). Any idea what happens? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Do locked instructions provide a barrier between weakly-ordered accesses?

On x86, lock-prefixed instructions such as lock cmpxchg provide barrier semantics in addition to their atomic operation ... access on WC memory. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - What are these threads which are spwaned when a Java application begins its execution?

I have created a simple Java application which has a JFrame and few JButtons. When I tried to inspect the ... the function of these threads? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - How to determine Stack size of a Program in linux?

How does one determine the current stack size of a program in linux? it is said that the stack size of ... have their own private stack? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Java -The method sleep(int) is undefined for the type Thread

I'm getting an error: The method sleep(int) is undefined for the type Thread. I thought the sleep method is in the ... (Exception e ) { } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - How are threads/processes parked and woken in Linux, prior to futex?

Before the futex system calls existed in Linux, what underlying system calls were used by threading libraries ... relatively recent creation). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Python multiprocessing never joins

I'm using multiprocessing, and specifically a Pool to spin off a couple of 'threads' to do a bunch of slow ... anyone know something I don't? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Multiple threads calling same method in C#

I have the following C# code snippet in which I have simulated my problem. In this program I have a Service function ... Console.Read(); } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Executing multiple PHP scripts in parallel, and being notified when finished

So, that's what I'm trying to do - pretty self-explanatory actually : Initiate X 'simultaneous' ... parallel-processing though remains... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Why tasks in Threadpool are not executed following FIFO, Java

I know if queue is full the new task will be executed by a newly created thread in priority according to How ... the task to be executed FIFO? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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