Category "multithreading"

How to set threading mode in SQLite with Entity Framework?

I'm using SQLite with Entity Framework Core (RC1). I read, that SQLite supports three different threading modes: Single-thread, Multi-thread and Serialized.

If async-await doesn't create any additional threads, then how does it make applications responsive?

Time and time again, I see it said that using async-await doesn't create any additional threads. That doesn't make sense because the only ways that a computer c

Why is this singleton implementation "not thread safe"?

1. The @Singleton decorator I found an elegant way to decorate a Python class to make it a singleton. The class can only produce one object. Each Instance() ca

How to run multiple threads in C++ code

I'm a beginner for c++. I wrote a program to extract data from one DB and store those data to another DB. I just want to add multiple threads to speed up the pr

How can I create single-thread coroutine context under Common pool in Kotlin?

Short requirement: have ability to create corotine context, which will executed in the single thread only (e.g. without parallelism). Additional requirement: i

How do I safely modify JavaFX GUI nodes from my own Thread?

I try to change a JavaFX GUI node in a thread, but I see the following error: Exception in thread "Thread-8" java.lang.IllegalStateException: Not on FX ap

Multithreading matrix multiplication in C#

I have a task - write multithreading matrix multiplication. Each vector product must be calculated in new thread.(If we have matrices n by m and m by k we must

Suspending threads while running multiple AsyncTasks in nested fragments and it makes app slow

Here I'm calling web services in nested Fragments which has TabLayout and ViewPager using AsyncTask. I've tried AsyncTasks by calling them all in onResume metho

Do variables/flags can be affected by another thread on a non-synchronized method?

For example I have a non-synchronized method like this: public void nonSynchronized(){ boolean flag = false; if(/*some condition*/){ flag

Static method behavior in multi-threaded environment in java

class Clstest{ public static String testStaticMethod(String inFileStr) { // section 0 // section 1 // do

Multithreading Python3 whit Sql-Injection

Good afternoon, I have a question that I cannot solve. I want to do a SQL injection in Hack The Box (Legal Platform). The case is that I am trying to execute a

Merging three threads in Java

I am trying to create few flows in java, my program must to create 3 threads and 1 main thread, and than stop. I created class with implemented Runnable class N

When to use std::launch::deferred?

Lines from Anthony William book: std::launch::deferred indicates that the function call is to be deferred until either wait() or get() is called on the fu

how to see which process owns a python thread

My understanding from multi-threading has been that one process (cpu core) can have multiple threads running with it. So far in python when I want to check whi

How do I refactor my code to call AppDelegate on the main thread?

I recently started migrating my project from Swift3/Xcode8 to Swift4/Xcode9. My app crashes at runtime because the main thread sanitizer allows access to UIAppl

C program to print a sentence using threads & semaphores with infinite loop

i am currently trying to make a programm which will print the sentece "What a wonderful world" using three threads. The first thread should print "What A" , the

X-Ray and async multithreading: segment cannot be found

I need to run multiple async methods from the main thread, which should be able to finish even after the main thread has returned a response. I've added a metho

Restarting a thread in Python

I'm trying to make threaded flight software for a project in Python 3.4, in which I need threads to restart themselves in case an I/O error occurs during a sens

Android method performance suddnely slow after upgrade from Marshmallow to Nougat

I have been developing a game, using a Samsung Galaxy S6 running Marshmallow as one of my development devices. After the phone upgraded itself to Nougat, a met

Android method performance suddnely slow after upgrade from Marshmallow to Nougat

I have been developing a game, using a Samsung Galaxy S6 running Marshmallow as one of my development devices. After the phone upgraded itself to Nougat, a met