[swift-dev] pthread_mutex vs std::mutex

[John McCall]

> On Feb 25, 2016, at 5:51 PM, Sangjin Han via swift-dev <swift-dev at swift.org> wrote:
> I'm a newbie in this world. I have a qustion.
> 
> Is there any reason to prefer pthread_mutex_* to std::mutex in the swift stdlib ?
> 
> Nowadays in C++, the std::mutex is the standard and more portable than pthread_mutex_*.
> 
> If I'm porting the swift stdlib to non-POSIX system, which method should I choose ?
> 
> Adding #if-#else-#endif or changing pthread to std::mutex ?

The runtime already uses std::mutex in a few places, so if there were portability problems with it, we’d already be hitting them.  I agree that we should prefer std::mutex where possible.

John.