Answer by hahn for Use of infinite loop in AtomicInteger.addAndGet(int)
compareAndSet or just CAS relates to nonblocking thread-safe algorithms. The increment operation in case of addAndGet is fetching the old value, transform it to the new value and using CAS tries to set...
View ArticleAnswer by Tagir Valeev for Use of infinite loop in AtomicInteger.addAndGet(int)
This is a classical example of CAS loop. The compare-and-set is an atomic operation which has direct hardware support (usually there's some CPU instruction behind it). It atomically updates the given...
View ArticleAnswer by Vano for Use of infinite loop in AtomicInteger.addAndGet(int)
The motivation here is that you will eventuallyreturn next.Meaning that the condition :if (compareAndSet(current, next))Will be true at some iteration. It isn't known when exactly it will happen, so...
View ArticleUse of infinite loop in AtomicInteger.addAndGet(int)
In Java's package java.util.concurrent.atomic AtomicInteger class has a method addAndGet(int)which ispublic final int addAndGet(int delta) { for (;;) { int current = get(); int next = current + delta;...
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