How can I share data between two threads?

How can I share data between two threads?

You should use volatile keyword to keep the variable updated among all threads. Using volatile is yet another way (like synchronized, atomic wrapper) of making class thread safe. Thread safe means that a method or class instance can be used by multiple threads at the same time without any problem.

How do you pass parameters to a thread?

Pass parameter to thread in C# – 2 ways In this method,first of all, create a thread in c# program and assign a user defined thread function to the thread [new Thread(threadFunc)] and pass argument to thread Start(arg) method. In fact, in C# thread, Start() overloaded methods are available.

How do I pass data from one thread to another in C#?

To get the data from the thread a delegate callback method will be used. First, we will make a regular method that takes in an input parameter. Then we will make a delegate and make it point to this method. Finally, the delegate will be passed as an input parameter to the method that is being started as a new thread.

Can two threads access same variable?

Only one thread can read and write a shared variable at a time. This guarantees that the access to a shared variable is Atomic, and multiple threads do not interfere.

What is pthread_join in C?

DESCRIPTION. The pthread_join() function shall suspend execution of the calling thread until the target thread terminates, unless the target thread has already terminated.

How do you pass variables to runnable?

5 Answers. Simply a class that implements Runnable with constructor that accepts the parameter can do, public class MyRunnable implements Runnable { private Data data; public MyRunnable(Data _data) { this. data = _data; } @override public void run() { } }

How do you spawn a new thread in C#?

Create New Thread [C#] First, create a new ThreadStart delegate. The delegate points to a method that will be executed by the new thread. Pass this delegate as a parameter when creating a new Thread instance. Finally, call the Thread.

What does thread join Do C#?

In C#, Thread class provides the Join() method which allows one thread to wait until another thread completes its execution. Join() causes the current thread to pause its execution until thread it joins completes its execution. …

How do you access threads in Java?

You don’t access threads as such. Rather you access objects that threads can see. If code running in one thread can access an object instance, or static data it can change it. If another thread can see that instance or static data then you have communicated between the two threads. – djna Sep 1 ’09 at 5:00

How to pass an object as argument to thread start?

You can pass an object as argument to the Thread.Start and use it as a shared data storage between the current thread and the initiating thread. You can also just directly access (with the appropriate locking of course) your data members, if you started the thread using the instance form of the ThreadStart delegate.

How to create shared data between threads?

You can’t use attributes to create shared data between threads. You can use the attribute instances attached to your class as a data storage, but I fail to see how that is better than using static or instance data members.

How does threadcommsclass work in ThreadPool?

Any thread that wishes to communicate has to get a threadCommsClass instance from the pool, load it up and queue it off. When the comms is done, the last thread to use it releases it back to the pool.