[Boost-users] [thread] unlock

Subject: [Boost-users] [thread] unlock
From: gast128 (gast128_at_[hidden])
Date: 2010-10-23 07:56:14

Hello all,

When using unique_lock in combination with mutex, one should only lock / 
unlock thru the unique_lock, otherwise its managment gets corrupted. However 
the unlock fct. is also offered in the mutex, which makes it vunerable for 
small typo errors like (code simplified):

void foo()
{
   boost::mutex mtx;

   for (size_t n = 0; n != 2; ++n)
   {
      boost::unique_lock<boost::mutex> lck(mtx);

      //mtx.unlock();    //hang in next lock attempt
      lck.unlock();     //ok
   }
}

Not sure if something can be done about this; mail only meant to share 
information.