Recent questions tagged Multithreading

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'Simple' question, what is the fastest way to calculate the binomial coefficient? - Some threaded algorithm? I'm ... ) - not implementations :) See Question&Answers more detail:os...

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

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581 views

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multithreading - getting the cancel event of Java ProgressMonitor

I have a ProgressMonitor pm and a SwingWorker sw. I want to cancel the SwingWorker when I press the cancel-button ... I would add one there. See Question&Answers more detail:os...

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

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780 views

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multithreading - android kill specific thread on action bar event

I want to kill an specific thread but can't figure out a way of make it work. I include all info next, even ... to get data from a JSON service. 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 - Problem with delegate Syntax in C#

I built a Testbox to learn something about threading in windows form applications. Silverlight and Java are providing ... ); Many thanks, rAyt See Question&Answers more detail:os...

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

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821 views

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multithreading - JavaFx ProgressBar doesn't update

I try to understand how to update a ProgressBar in a multithreaded environment. I'm doing something wrong here but I ... (); What am I missing? See Question&Answers more detail:os...

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

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583 views

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multithreading - Race condition when accessing adjacent members in a shared struct, according to CERT coding rule POS49-C?

According to CERT coding rule POS49-C it is possible that different threads accessing different fields of the same structure ... FYI, I use gcc. See Question&Answers more detail:os...

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

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838 views

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multithreading - QTimer can only be used with threads started with QThread

So I have an interesting problem....a program I am (trying) to write is crashing with this error: ... examples) would be very appreciated. See Question&Answers more detail:os...

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

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606 views

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multithreading - How to search through next available thread to do computation

I am doing multithreading in C++. This may be something very standard but I can't seem to find it anywhere or ... which may be out of order. See Question&Answers more detail:os...

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

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585 views

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multithreading - Concurrent byte array access in Java with as few locks as possible

I'm trying to reduce the memory usage for the lock objects of segmented data. See my questions here and here. ... 50% faster in my scenario. See Question&Answers more detail:os...

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

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876 views

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multithreading - How to create threads in Perl?

I have got easy Perl script where I have got a BIG loop and inside this I invoke more or less million times ... (); } Thank you in advance See Question&Answers more detail:os...

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

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671 views

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multithreading - Is it safe for a Java servlet to spawn threads in order to satisfy a request?

Is it safe for my Java (Tomcat 8) web server to spawn threads in response to a HTTP request? I'm ... arbitrary threads like in my example? See Question&Answers more detail:os...

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

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932 views

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multithreading - How to kill a java thread?

I google the solution for killing a java thread. And there exists two solutions: set a flag using Thread. ... thread ? Thanks in advance. See Question&Answers more detail:os...

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

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611 views

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multithreading - Python threading.thread.start() doesn't return control to main thread

I'm trying to a program that executes a piece of code in such a way that the user can stop its execution at ... what I am doing wrong here? See Question&Answers more detail:os...

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

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876 views

1 answer

multithreading - C# Thread not releasing memory

I have a windows service written in C#.Net. When the service is started, I spawn a new thread as shown ... cannot cleanup after itself? 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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785 views

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multithreading - Python threading self._stop() 'Event' object is not callable

Trying a "stoppable" thread from https://stackoverflow.com/a/325528/1619432 like so: import sys import ... /library/threading.html#event-objects See Question&Answers more detail:os...

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

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839 views

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multithreading - How do you hang a thread in Java in one line?

By one line I mean at most 100 chars per line. (I basically need this to keep the program alive. The main ... the other threads do their work) See Question&Answers more detail:os...

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

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1.2k views

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multithreading - Threading-Safe std:list C++

I am new to multi-threading and I am trying to simply make some std:lists thread-safe. Would it be enough ... to make them thread-safe. 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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641 views

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multithreading - Does Java notify waiting threads implicitly?

I wrote a test app that should never stop. It issues t.wait() (t is a Thread object), but I never call ... m testing on Windows XP, Java 6. See Question&Answers more detail:os...

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

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919 views

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multithreading - Thread safety of C++ std Containers

I read a lot of posts here with the question if the standard containers for C++ (like "list" or "map" are thread ... C++03 and not for C++11 See Question&Answers more detail:os...

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

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662 views

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multithreading - How do i make Android app which do something every X second

Hello i wanna do apliacation which every 1 second call function or do something else. I have this code which ... .currentTimeMillis()); } } See Question&Answers more detail:os...

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

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692 views

1 answer

multithreading - Android - Async Task behavior in 2.3.3 and 4.0 OS

I am testing an application where we have a list view with list of images retrieved over network. When i run ... reason ? Thanks in advance. See Question&Answers more detail:os...

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

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759 views

1 answer

multithreading - How to keep the connection pool from closing with a java driver on a mongodb?

I'm in the middle of upgrading from java driver 2.12.3 to 3.3.0. Curiously it seems that the collection ... why? very puzzled Anyone an idea? See Question&Answers more detail:os...

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

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948 views

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multithreading - Java: How to distinguish between spurious wakeup and timeout in wait()

Here is a case where a thread is waiting for notify() or a timeout. Here a while loop is added to handle ... post 1.5. Thanks in advance. See Question&Answers more detail:os...

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

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736 views

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multithreading - When to use volatile to counteract compiler optimizations in C#

I have spent an extensive number of weeks doing multithreaded coding in C# 4.0. However, there is one question that ... pop L_004c: br.s L_0038 See Question&Answers more detail:os...

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

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678 views

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multithreading - Does it make sense to spawn more than one thread per processor?

From a logical point of view an application may need dozens or hundreds of threads, some of which will we ... benefit is. Thanks in advance. See Question&Answers more detail:os...

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

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710 views

1 answer

multithreading - How to get an ideal number of threads in parallel programs in Java?

I need to get an ideal number of threads in a batch program, which runs in batch framework supporting parallel ... in a situation like this? See Question&Answers more detail:os...

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

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614 views

1 answer

multithreading - python 2.6.x theading / signals /atexit fail on some versions?

I've seen a lot of questions related to this... but my code works on python 2.6.2 and fails to ... to never execute the atexit functions. See Question&Answers more detail:os...

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

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962 views

1 answer

multithreading - Deadlock with logging multiprocess/multithread python script

I am facing the problem with collecting logs from the following script. Once I set up the SLEEP_TIME ... multiprocess and multithread scripts? See Question&Answers more detail:os...

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

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