[Boost-users] Implementing lock/unlock with boost::thread

25 Oct 2005

      I'm trying to implement a class having a lock and an unlock-method.

If several different threads call scoped_lock::lock, what is the effect?

class AntiRAII{
public:
  AntiRAII() : mLock(mMutex, false) {}
  void Lock() {mLock.lock(); }
  void Unlock() {mLock.unlock();}

private:
  boost::mutex mMutex;
  boost::mutex::scoped_lock mLock;
};

I cannot find any documentation on the behaviour. The usual usage of 
scoped_lock
is one per thread, which is why I'm sceptical to this approach.

How can this be implemented? Is it better to expose the mutex?

Regards, Johan Torp