Re: Thread-safe singleton w/ Boost.Threads

From: williamkempf_at_[hidden]
Date: 2001-09-25 15:31:56

--- In boost_at_y..., scleary_at_j... wrote:
> > POSIX implementation:
> > 
> > static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
> 
> ...
> 
> > Comments? Is the flaw in Boost.Threads or in my limited 
understanding?
> 
> Boost.Threads is designed to be portable.  There is no way to do 
this under
> Win32 to my knowledge :(
> 
> I think that is the reason that this (very useful) capability was 
not
> included.

It can be emulated on Win32, as is done by pthreads-win32.  However, 
this is nothing more than a shortcut for using pthread_once.  The 
idea of static initialization doesn't play well with C++ objects, so 
the shortcut is difficult to implement and not worth considering.

Bill Kempf