Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
185 views
in Technique[技术] by (71.8m points)

Java volatile array?

How do I make an array volatile? Because as I've come to understand, it's unsafe to make an array volatile?

See Question&Answers more detail:os

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…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Declaring an array volatile does not give volatile access to its fields. You're declaring the reference itself volatile, not its elements.
In other words, you're declaring a volatile set of elements, not a set of volatile elements.

The solution here is to use AtomicIntegerArray in case you want to use integers. Another way (but kinda ugly) is to rewrite the reference to the array every time you edit a field.

You do that by:

arr = arr; 

(as I said... ugly)


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…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...