LeapArray#currentWindow resetWindowTo 是否需要double check?
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- Dominant language
- Java
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Description
### 描述
个人理解，会不会多个线程同时满足 windowStart > old.windowStart()，并且一个线程先获取了锁，执行完了 resetWindowTo 并释放锁。此时另一个线程又获得了锁，又执行了一次 resetWindowTo
### 版本
1.8.0 并且看了下master分支代码也是这样的
Contributor guide
Research direction
Start at LeapArray#currentWindow and its resetWindowTo call, then review the concurrent path described in the issue and the existing nine-comment discussion. Determine whether two threads can perform the reset for the same window and document or test the expected behavior; done means the double-check question has a confirmed resolution.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- backend, distributed-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100