PTHREAD_RECURSIVE_MUTEX_INITIALIZER 和 PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP 有什么区别? [英] What is the difference between PTHREAD_RECURSIVE_MUTEX_INITIALIZER and PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP?

问题描述

静态初始化递归互斥锁时，有什么区别

When statically initializing a recursive mutex, what is the difference between

static pthread_mutex_t foo_mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;

和

static pthread_mutex_t foo_mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;

为什么我要一个而不是另一个?

and why should I want the one instead of the other?

推荐答案

"_NP" 暗示该功能是不可移植的.为了保持提示，最好使用_NP"版本.

"_NP" is meant as a hint that the feature is nonportable. In order to keep the hint there, you are best off to use the "_NP" version.

除此之外，我怀疑没有区别.不过也不是 100% 确定.

Other than that I suspect there is no difference. Not 100% sure, though.

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