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Posted to dev@brpc.apache.org by GitBox <gi...@apache.org> on 2020/08/08 01:39:57 UTC
[GitHub] [incubator-brpc] ruoshui1314 opened a new issue #1201: 请教下为什么SamplerCollector::run中的链表不需要全局加锁呢
ruoshui1314 opened a new issue #1201:
URL: https://github.com/apache/incubator-brpc/issues/1201
你好，我认真看了采样的代码，有一个地方的疑问没有解开，各位大佬能否帮忙解答下。
在采样的代码中添加到队列是Sampler::schedule() 添加调用CombineSampler然后加入链表。但是删除的时候在SamplerCollector::run 中 RemoveFromList 为啥不需要加锁操作呢？这看不出来是lock_free的链表呀。感觉添加节点和删除节点从代码逻辑上是无关的？这是怎么做到的
如果是这样删除节点的时候干吗还需要用used这个变量，而不是直接removefromlist呢？
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[GitHub] [incubator-brpc] ruoshui1314 closed issue #1201: 请教下为什么SamplerCollector::run中的链表不需要全局加锁呢
Posted by GitBox <gi...@apache.org>.
ruoshui1314 closed issue #1201:
URL: https://github.com/apache/incubator-brpc/issues/1201
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