Re: Why SynchronousQueue.TransferQueue#clean() not clean the last node

Liu via Concurrency-interest <[email protected]> Mon, 17 Aug 2020 10:13:33 +0800 (CST)

Newsgroups	gmane.comp.java.jsr.166-concurrency
Message-ID	<[email protected]>



I try to understand what you guys are saying.


Firstly,    A -> B -> C(tail) -> null, and if C should be cleaned,
 it should become A -> B(tail)  -> null. but there is No such atomic operation.


Secondly, some threads may see A -> B  -> null and C(tail), and may append node
after C which is wrong.

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