Scoped SRWLOCK

ScopedSRWLock.hpp

  //! \class ScopedSRWLock
  //! Automation for scoped acquisition and release of an SRWLOCK.
  //! \warning Lock must be initialized in advance!
  class ScopedSRWLock: boost::noncopyable
  {
    protected:
      PSRWLOCK mLock;
      bool mExclusive;
    public:
      ScopedSRWLock( PSRWLOCK lock, bool exclusive = true ):
      mLock( lock ), mExclusive( exclusive )
      {
        mExclusive ? AcquireSRWLockExclusive( mLock ) : AcquireSRWLockShared( mLock );
      }
      void unlock()
      {
        if ( mLock )
          mExclusive ? ReleaseSRWLockExclusive( mLock ) : ReleaseSRWLockShared( mLock );
        mLock = nullptr;
      }
      ~ScopedSRWLock()
      {
        unlock();
      }
  };