Structure - Specifies a port's attributes with respect to "Quality Of Service."
typedef struct mach_port_qos
{
boolean_t name;
boolean_t rt;
boolean_t pad1;
boolean_t pad2;
} mach_port_qos_t;
The mach_port_qos structure is used to specify a port's "quality of service" attributes when allocating the port via the mach_port_allocate_qos interface.
Functions: mach_port_allocate_qos, mach_port_get_attributes, mach_port_set_attributes.