[boost] Re: Boost.Threads: Do we need all those mutexes?

From: Alexander Terekhov (terekhov_at_[hidden])
Date: 2004-07-12 11:34:08

Peter Dimov wrote:

[... Mutex * mutex() const ...]

And the Mutex thing (std0X::whatever) shall also provide something like 

    pthread_mutex_t * c_mutex();
    pthread_mutex_t const * c_mutex() const;

That pthread_mutex_t shall be defined in <cthread> (and it shall of
course also be available through *deprecated* <pthread.h>) and shall 
perform dynamic dispatching for "C-style" code (depending on "C++ 
mutex type"). Oder?

> > I can't speak for the boost implementation (haven't carefully studied
> > it), but the Metrowerks implementation also supports conditions
> > operating on a recursive mutex.
> 
> Interesting. I presume that this was a deliberate design decision. 

It has a precondition "lock.mutex()->locked() && lock.mutex()->
lock_count() == 1" (or something like that... brrrr, so many "lock" 
things... "guard" would sound much better ;-) )

regards,
alexander.