osfmk/man/processor_set_default.html
Function - Return the default processor set.
**kern\_return\_t processor\_set\_default**** (host\_t **host,** processor\_set\_name\_t **default\_set\_name** );**
host[in host-name send right] The name (or control) port for the host for which the default processor set is desired. default_set_name[out processor-set-name send right] The returned name port for the default processor set.
The processor_set_default function returns the name port for the default processor set for the specified host. The default processor set is used by all threads, tasks and processors that are not explicitly assigned to other sets.
Only generic errors apply.
Functions: processor_set_info, thread_assign, task_assign.