What are alternatives to CyclicBarrier and how do they compare?

CyclicBarrier is a synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point. However, there are several alternatives to CyclicBarrier that can be used depending on the use case. This article will compare various alternatives such as CountDownLatch, Phaser, and ThreadPoolExecutor.

alternatives to CyclicBarrier, CountDownLatch, Phaser, threading in Java, synchronization mechanisms in Java


    // Example usage of CountDownLatch
    import java.util.concurrent.CountDownLatch;

    public class CountDownLatchExample {
        public static void main(String[] args) throws InterruptedException {
            CountDownLatch latch = new CountDownLatch(3);
            
            for (int i = 0; i < 3; i++) {
                new Thread(new Worker(latch)).start();
            }
            
            latch.await(); // Wait for all threads to finish
            System.out.println("All workers finished.");
        }
        
        static class Worker implements Runnable {
            private CountDownLatch latch;

            Worker(CountDownLatch latch) {
                this.latch = latch;
            }

            @Override
            public void run() {
                try {
                    Thread.sleep(1000); // Simulate work
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                } finally {
                    latch.countDown(); // Reduce the count of the latch
                }
            }
        }
    }

What are alternatives to CyclicBarrier and how do they compare?

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What are alternatives to CyclicBarrier and how do they compare?

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