ode>. This method is used
    to open the environment and then a database in that environment. Along
    the way, we make sure that every handle is free-threaded, and that the
    transactional subsystem is correctly initialized. Because this is a
    concurrent application, we also declare how we want deadlock detection
    to be performed. In this case, we use DB's internal block detector
    to determine whether a deadlock has occurred when a thread attempts to
    acquire a lock. We also indicate that w