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Subj : Re: Can C++ local static objects be made thread safe?
To   : comp.programming.threads
From : David Schwartz
Date : Wed Feb 16 2005 08:32 am


"Marcin 'Qrczak' Kowalczyk" <qrczak@knm.org.pl> wrote in message 
news:87wtt8o8ct.fsf@qrnik.zagroda...

> "David Schwartz" <davids@webmaster.com> writes:

>>     Umm, it's totally obvious. For your method, every reference to
>> thread-specific data (assuming you don't cache the address) requires
>> figuring out which thread you are to calculate the address.

> Calculating the address can be done by reading from a page which
> appears to have different contents among threads. So it's not more
> costly than one extra dereference.

    That was *MY* point! He's saying you can't do it that way because 
"threads share address space by definition".

    DS

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