Tagged Questions
22
votes
5answers
3k views
Is this (Lock-Free) Queue Implementation Thread-Safe?
I was trying to create a lock-free queue implementation in Java, mainly for personal learning. The queue should be a general one, allowing any number of readers and/or writers concurrently.
Would you ...
5
votes
2answers
235 views
How can I make this fast and more readable?
I made a simple library to help me doing A/B tests in a web app. The idea is simple: I have two or more page options (url) for a given page and every call to the library method should give me a url so ...
4
votes
2answers
176 views
Multithreading correctly done?
I rarely write multithreaded code, and am on shaky ground when doing so. I make mistakes. I would like a sanity check of something I am going to introduce in one of my apps.
There will be exactly ...
4
votes
6answers
383 views
Strategy for avoiding threadpool starvation while performing cpu bound jobs in a queued fashion
My aim is to avoid using threadpool threads for CPU bound work, thus avoiding a situation where IIS stops responding to new requests.
Can you see any problems with the code below? Is this a ...
4
votes
1answer
179 views
Is this custom dictionary thread-safe?
I'm writing a custom dictionary which is to be used as a helper for caching. The reason I use delegates is because it must interface with generated code, so I can't change this. However, you can ...
4
votes
2answers
1k views
Did I need to use lock to ensure that Queue.Dequeue is Thread Safe in this case on .NET 2.0?
Is this ok? I am using C# and .NET 2.0
I have this Queue declared in my class :
static private Queue<SignerDocument> QUEUE = new Queue<SignerDocument>();
I fill this Queue with some ...
4
votes
1answer
287 views
Can you spot a threading bug in this implementation of costreams?
I am not very good with thread-safety and often fall prey to subtle issues in concurrency. Therefore, I hope that someone here might be able to tell me whether there is a subtle concurrency issue ...
4
votes
1answer
269 views
Activeresource-response gem
I created my first gem for Rails today. https://github.com/Fivell/activeresource-response.
This gem adds possibility to access http response object from result of activeresource call.
I don't know ...
4
votes
1answer
295 views
is this thread safe?
I am using this code for receiving log messages from my clients I receive more than 1000 connections per minute. I want to increase my log handling. I did with java threading. I have a doubt if it ...
4
votes
2answers
869 views
thread-safe stl map accessor
So after learning that stl map containers are not inherently atomic and therefore not thread-safe (check out this related stackoverflow question and usage example), I decided to create code that would ...
4
votes
1answer
998 views
Singleton class extending a parent class to utilise shared functionality
I have a singleton class which extends from an abstract java class. Two singleton classes extend from ItemImageThreadManager, the reason for this is to use shared scheduling functionality. A thread is ...
3
votes
1answer
187 views
Java thread safety and caching techniques
This is my first Java multi-threading code. It is part of an Android application that is a client to a webpage that serves books. Each page of the book is in a separate PDF, and the Book class ...
3
votes
2answers
54 views
Is this a scenario to use volatile instead of synchronized?
I want to know if using volatile in this scenario will give a better performance than using synchronization. Specifically for the paused and running instance variable in the SimulationManager class.
...
3
votes
1answer
312 views
.Net caching service - thread safety
I have a simple cache service that i am using inside my WPF prism application, i am concerned about the thread safety of it - we will be accessing this via multiple threads and using the current code ...
3
votes
1answer
100 views
Thread Safety issues in the multithreading code
I am working on a project in which I have two tables in a different database with different schemas. So that means I have two different connection parameters for those two tables to connect using ...
