Subj : Re: Can C++ local static objects be made thread safe?
To   : comp.programming.threads
From : Alexander Terekhov
Date : Wed Feb 16 2005 04:01 pm


David Schwartz wrote:
[...]
>     We are talking about a particular technical definition of "threads", not
> the generic one. Specifically, the standard defines a thread as "a flow of
> control through a program". It does not require any of the specific
> implementation details that normally accompany the term. It specifically
> leaves that to the threading standard.

Fine. Go read POSIX definitions, then.

[...]
>     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. 

Ever heard of "thread register"?

[...]
>     The problem is, which is normal? If you pass the address, is it normal
> for threads to access each other's thread local variables? 

Of course. Threads share process address space. By definition.

regards,
alexander.

.