#include <db_cxx.h> int DbEnv::get_memory_max(u_int32_t *gbytesp, u_int32_t *bytesp);
        The DbEnv::get_memory_max() method returns
        the maximum amount of memory to be used by shared structures other
        than mutexes and the page cache (memory pool).  This value is set
        using the 
        DbEnv::set_memory_max() 
        method.
     
         The DbEnv::get_memory_max() method may be
         called at any time during the life of the application.
     
         The DbEnv::get_memory_max()  
            
            
                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 gbytesp parameter references memory into which is copied the maximum number of gigabytes of memory that can be allocated.
The bytesp parameter references memory into which is copied the additional bytes of memory that can be allocated.