BOOST：递归shared_mutex？ [英] BOOST: recursive shared_mutex?

问题描述

似乎Boost的shared_mutex是非递归的..有没有反正呢？ （无需重新实现整个内容）

Seems that Boost's shared_mutex is non recursive.. Is there anyway around this? (without re implementing the whole stuff)

推荐答案

查看此线程和此优秀的解释为什么 shared_mutex 是一个坏主意。所以如果你不同意 recursive_mutex 也是不错的主意，只是使用它没有任何锐度，因为它不能给你任何性能提升。

have a look at this thread and this excellent explanation why shared_mutex is bad idea in general. so if you don't agree that recursive_mutex is bad idea too, just use it without any shariness because it cannot give you any performance boost. you'll receive even a bit cleaner code w/o any major changes.

我试图在我的项目中使用shared_mutex锁定高竞争的地图，当许多线程经常读取数据时并很少修改它。收到了较差的性能结果

I tried to use shared_mutex in my project to lock highly contested map when many threads often reads data and rarely modify it. received a bit worse performance results

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