#include <db_cxx.h> DB_ENV->get_backup_config(db_backup_config_t option, u_int32_t *valuep);
         The DbEnv::get_backup_config() method
         retrieves the value set for hot backup tuning parameters. See the
         DbEnv::backup()
         and
         DbEnv::dbbackup()
         methods for a description of the hot backup APIs. These tuning 
         parameters can be set using the
         DbEnv::set_backup_config()
         method.
     
         The DbEnv::get_backup_config() method may
         be called at any time during the life of the application.
     
         The DbEnv::get_backup_config() 
            
            
                method either returns a non-zero error value or throws an
                exception that encapsulates a non-zero error value on
                failure, and returns 0 on success.
            
        
    
The option parameter identifies the backup parameter to be retrieved. It must be one of the following:
                        DB_BACKUP_WRITE_DIRECT
                    
Turning this on causes direct I/O to be used when writing pages to the disk.
                        DB_BACKUP_READ_COUNT
                    
Configures the number of pages to read before pausing.
                        DB_BACKUP_READ_SLEEP
                    
Configures the number of microseconds to sleep between batches of reads.
                        DB_BACKUP_SIZE
                    
Configures the size of the buffer, in megabytes, to read from the database.