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From Liviu Nicoara <>
Subject Re: STDCXX-1056 [was: Re: STDCXX forks]
Date Fri, 14 Sep 2012 17:27:51 GMT
On 09/13/12 01:40, Stefan Teleman wrote:
> On Wed, Sep 12, 2012 at 9:04 AM, Liviu Nicoara <> wrote:
>> That would be very helpful!
> I ran your test case - with your implementation of _numpunct.h - and I
> even wrote a variant of it because I wanted to be able to test with
> more than one locale at a time:
> They pass and they did not cause assertions. I initially had a concern
> about the case where two or more different threads ask for facet data
> on the same static locale object, ahd they happen to do so exactly at
> the same time. But there is a mutex in __rw_setlocale which will
> serialize this. Incidentally there are some optimizations which could
> be done in __rw_setlocale's constructor as well, along with the
> optimizations for the "C" locale in punct.cpp Martin mentioned
> yesterday.
> The performance of is also much better with your
> _numpunct.h patch:

Did you happen to test a single-threaded build as well?


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