memory_object_get_attributes

Function - Return current attributes for a memory object.

SYNOPSIS

kern_return_t   memory_object_get_attributes
                (memory_object_control_t         memory_control,
                 memory_object_flavor_t                  flavor,
                 memory_object_info_t                attributes,
                 mach_msg_type_number_t        attributes_count);

PARAMETERS

memory_control

[in memory-cache-control send right] The memory cache control port to be used by the memory manager for cache management requests. This port is provided by the kernel in a memory_object_notify call.

flavor

[in scalar] The type of information to be returned. Valid values are:

MEMORY_OBJECT_PERFORMANCE_INFO

Performance related attributes such as the cache indicator and the cluster size. attributes should specify a structure of type memory_object_perf_info.

MEMORY_OBJECT_BEHAVIOR_INFO

Behavior related attributes such as the copy strategy and sync invalidate flag. attributes should specify a structure of type memory_object_behavior_info.

MEMORY_OBJECT_ATTRIBUTES_INFO

Behavior and performance related attributes such as the copy strategy, cache indicator, and cluster size. attributes should specify a structure of type memory_object_attr_info.

attributes

[out structure] Current attributes.

attributes_count

[in/out scalar] On input, the maximum size of the buffer; on output, the size returned (in natural-sized units).

DESCRIPTION

The memory_object_get_attributes function retrieves the current attributes for the specified memory object.

RETURN VALUES

Only generic errors apply.

RELATED INFORMATION

Functions: memory_object_change_attributes.

Data Structures: memory_object_perf_info, memory_object_attr_info.