#include <db_cxx.h> int DbMpoolFile::set_maxsize(u_int32_t gbytes, u_int32_t bytes);
Set the maximum size for the file to be gbytes gigabytes plus bytes. Attempts to allocate new pages in the file after the limit has been reached will fail.
         To set the maximum file size for a particular database, call the
         DbMpoolFile::set_maxsize() method using the 
         DbMpoolFile  handle stored
         in the mpf field of the 
         Db  handle.  Attempts to insert
         new items into the database after the limit has been reached may fail.
    
         The DbMpoolFile::set_maxsize() method configures a file in the
         cache, not only operations performed using the specified 
         DbMpoolFile  handle.
    
         The DbMpoolFile::set_maxsize() method may be called at any time
         during the life of the application.
    
         The DbMpoolFile::set_maxsize() 
            
            
                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.