where to find the threads library?

From: Evan Pfeuffer (evan_pfeuffer_at_[hidden])
Date: 2001-07-18 10:32:40

where can i find the threads library on the boost.org
website?  
thanks in advance,
evan.

--- Alexander Terekhov <terekhov_at_[hidden]> wrote:
> 
> > class X {
> > public:
> >    mutable boost::mutex mtx;
> >    int a;
> >    X() : a(0) { }
> >    X(const X& other) : a(0) { boost::mutex::lock
> lock(other.mtx); a =
> other.a; }
> >    ~X() { }
> > };
> 
> IMHO the use of "lock" is really confusing here.
> i would suggest to adopt more common "locker" or
> "guard"..
> 
>  class X {
>  public:
>     mutable boost::mutex mtxLock; // mutex is exclusive
> lock which does not
> support
>                                   // transfer of lock
> ownership. binary
> semaphore is
>                                   // exclusive lock which
> does support
> transfer of
>                                   // lock ownership.
>     int a;
>     X() : a(0) { }
>     X(const X& other) : a(0) { boost::mutex::locker
> locker(other.mtxLock);
> a = other.a; }
>     ~X() { }
>  };
> 
> or
> 
>  class X {
>  public:
>     mutable boost::mutex mtxLock; // mutex is exclusive
> lock which does not
> support
>                                   // transfer of lock
> ownership. binary
> semaphore is
>                                   // exclusive lock which
> does support
> transfer of
>                                   // lock ownership.
>     int a;
>     X() : a(0) { }
>     X(const X& other) : a(0) { boost::mutex::guard
> guard(other.mtxLock); a
> = other.a; }
>     ~X() { }
>  };
> 
> --
> 
>  class Y {
>  public:
>     mutable boost::semaphore semLock;
>     int a;
>     Y() : a(0) { }
>     Y(const X& other) : a(0) { boost::semaphore::guard
> guard(other.semLock); a = other.a; }
>     ~Y() { }
>  };
> 
> regards,
> alexander.
> 
> 
> 
> 
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