Tagged Questions
2
votes
1answer
50 views
Dining Philosophers problem Solution with Java Reentrant Lock
I have implemented Dining Philosopher problem using ReentrantLock in java.
The goal of this program is
Every philosopher should follow the workflow of think,getchopsticks,eat,putchopsticks (No ...
1
vote
1answer
67 views
Thread safe settings
I'd like to design a settings class thread save. The settings have 2 attributes: String x and int y and should provide listener functionality to notify listener about changes. The problem is, how to ...
0
votes
1answer
28 views
Ensuring my program is thread safe
I have a class which is responsible for waiting until a message is added to a message list and then sending it off to get processed
withdrawMessages - waits for message. I wait a total of 2 minutes ...
2
votes
1answer
92 views
Review of simple Java Actor library
How can I improve this code?
Also available from git://github.com/edescourtis/actor.git .
Actor.java
package com.benbria.actor;
public interface Actor<T> extends Runnable {
public ...
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
185 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
1answer
99 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 ...
2
votes
2answers
85 views
Simple FIFO Job list in Java
For the first time I have to play with Threads in java.
Basically, my code is a simple FIFO job queue.
The main thread regularly puts jobs in the queue wich need to be executed.
The code below is a ...
2
votes
1answer
53 views
BlockingQueue Implemetation using ReentrantLock
I was writing my own implementation of BlockingQueue for practice. I am trying to avoid using the synchronized keyword for the methods. I would instead like to use ReentrantLock.
What is the best way ...
1
vote
2answers
324 views
Lock-Free Ring Implementation
I am wondering if someone can take a look at my lock-free, circular ring implementation which I use to implement a background logger.
The CircularRing pre-allocates LoggableEntity elements and stores ...
4
votes
2answers
174 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 ...
3
votes
2answers
115 views
How is this ThreadSafe?
Given the class Sequence:
//This method getNext must return a unique value nextValue
public class Sequence {
@GuardedBy("this") private int nextValue;
public synchronized int getNext() {
...
0
votes
1answer
79 views
Thread Safe Server Querier
I wanted to make a class that connects to my server and returns a value, a url in this case. As Android 4.0 doesn't let me run network task on the main UI thread(rightly so) I have made this. Please ...
1
vote
1answer
266 views
Loading an Object from File with Type-Safety and Thread-Safe access
I'm attempting to write a bit of code that allows for easy and safe access to objects in a file. It seems to work great but I was curious if there was an easier way to do this or if Java already has ...
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 ...
