英文:
multithreaded BlockingQueue - add at the head
问题
我在使用 BlockingQueue 时遇到了问题。
当我将其用作队列时，它对我很有效。然而，有时候我想把几个任务重新添加到队列的头部。
我猜 BlockingQueue 不能执行这种操作。
是否有其他的数据结构可以执行此操作并且是线程安全的？我想避免使用 Collections.synchronizedList()，但我不知道如何利用 java.utils.concurrent 中的功能来实现这样的问题。
请问有哪种数据结构能够在多线程环境中支持这样的问题？
英文:
I have a problem with BlockingQueue.
It is working for me when I use it as the queue. However, sometimes I would like to return several tasks to the queue to the head.
I assume BlockingQueue is not able to do that operation.
Is any other structure is able to do that and is ThreadSafe? I would like to avoid Collections.synchronizedList() but I do not have any idea how to implement such problem with java.utils.concurrent possibilities?
Any hints which structure is able to support such a problem in multi-threaded environment, please?
答案1
得分: 3
你是否在寻找一个 BlockingDeque？ addLast 不会阻塞并且将元素添加到尾部，而 putLast 会阻塞并且将元素添加到尾部。
英文:
Are you looking for a BlockingDeque? addLast doesn't block and adds to tail and putLast blocks and adds to tail.
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