Objects_Information *_Objects_Get_information(
Objects_APIs the_api,
uint16_t the_class
)
{
Objects_Information *info;
int the_class_api_maximum;
if ( !the_class )
return NULL;
/*
* This call implicitly validates the_api so we do not call
* _Objects_Is_api_valid above here.
*/
the_class_api_maximum = _Objects_API_maximum_class( the_api );
if ( the_class_api_maximum == 0 )
return NULL;
if ( the_class > (uint32_t) the_class_api_maximum )
return NULL;
if ( !_Objects_Information_table[ the_api ] )
return NULL;
info = _Objects_Information_table[ the_api ][ the_class ];
if ( !info )
return NULL;
/*
* In a multprocessing configuration, we may access remote objects.
* Thus we may have 0 local instances and still have a valid object
* pointer.
*/
#if !defined(RTEMS_MULTIPROCESSING)
if ( info->maximum == 0 )
return NULL;
#endif
return info;
}
int rtems_object_api_maximum_class(
int api
)
{
return _Objects_API_maximum_class(api);
}