#include <db.h> int DB_ENV->txn_stat_print(DB_ENV *env, u_int32_t flags);
         The DB_ENV->txn_stat_print() method displays the transaction
         subsystem statistical information, as described for the
         DB_ENV->txn_stat() method. The information is printed to a specified
         output channel (see the DB_ENV->set_msgfile() 
         method for more information), or passed to an application callback
         function (see the DB_ENV->set_msgcall() 
         method for more information).
    
         The DB_ENV->txn_stat_print() method may not be called before the
         DB_ENV->open()  method is
         called.
    
         The DB_ENV->txn_stat_print() 
            
                  method returns a non-zero error value on failure and 0 on success.