Re: [Boost-users] threads / scoped_lock

From: Roland Schwarz (roland.schwarz_at_[hidden])
Date: 2006-12-14 09:58:10

Ovanes Markarian wrote:
> Hi!
> 
> you could define a scope where to lock ;) Just like this:
> 
> 
>  boost::mutex a_mutex;
>  ...
>  {
>         {
>  	    boost::mutex::scoped_lock lock(a_mutex); //lock
>  	    cout<<"bla";
>         }//end of scope => unlock
> 
>  	//much of code where cout dont has to be locked
>  	...
>  }

Or:

foo()
{
        boost::mutex::scoped_lock lk(a_mutex);
        cout << "bla" ;
        lk.unlock();
         .... some other stuff unlocked
             lk.lock();  // lock again
        .....

}

The lock is (conditionally) unlocked however when you leave the scope.

Roland