Note the name isn't new for this concept, Java also uses the latch name to describe this: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/CountDo

Note the name isn't new for this concept, Java also uses the latch name to describe this: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/CountDownLatch.html https://docs.oracle.com/javase/7/docs/api/java/util/concurre...