#include <db.h> int DB_ENV->mutex_get_max(DB_ENV *dbenv, u_int32_t *maxp);
         The DB_ENV->mutex_get_max() method returns the total number of
         mutexes allocated. This method is deprecated.
    
         The DB_ENV->mutex_get_max() method may be called at any time during
         the life of the application.
    
         The DB_ENV->mutex_get_max() 
            
                  method returns a non-zero error value on failure and 0 on success.