Welcome to ShenZhenJia Knowledge Sharing Community for programmer and developer-Open, Learning and Share
menu search
person
Welcome To Ask or Share your Answers For Others

Categories

public final long incrementAndGet() {

return unsafe.getAndAddLong(this, valueOffset, 1L) + 1L;

}
AtomicLong源码中的incrementAndGet方,unsafe.getAndAddLong(this, valueOffset, 1L)方法我清楚是线程安全的,但是在+1之后不又是线程不安全了么。这点不是很清楚,请大佬讲解。这个是看java并发编程之美遇到的问题


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
thumb_up_alt 0 like thumb_down_alt 0 dislike
1.6k views
Welcome To Ask or Share your Answers For Others

1 Answer

但是在+1之后不又是线程不安全了么

这里的 +1 为什么线程不安全?


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
thumb_up_alt 0 like thumb_down_alt 0 dislike
Welcome to ShenZhenJia Knowledge Sharing Community for programmer and developer-Open, Learning and Share
...