osfmk/man/P_set_policy_enable.html

   1 <h2>processor_set_policy_enable</h2>
   2 <hr>
   3 <p>
   4 <strong>Function</strong> - Enables a scheduling policy for a processor set.
   5 <h3>SYNOPSIS</h3>
   6 <pre>
   7 <strong>#include&lt mach/mach_host.h&gt</strong>
   8
   9 <strong>kern_return_t   processor_set_policy_enable</strong>
  10                 <strong>(processor_set_t</strong>       <var>processor_set</var>,
  11                 <strong>int</strong>    <var>policy</var><strong>);</strong>
  12 </pre>
  13 <h3>PARAMETERS</h3>
  14 <dl>
  15 <dt> <var>processor_set</var>
  16 <dd>
  17 [in processor-set-control port] The control port for the processor set for which a scheduling policy is to be enabled.
  18 <dt> <var>policy</var>
  19 <dd>
  20 [in scalar] Policy to be enabled. The values currently defined are POLICY_TIMESHARE and POLICY_FIXEDPRI.
  21 </dl>
  22 <h3>DESCRIPTION</h3>
  23 <p>
  24 The <strong>processor_set_policy_enable</strong>
  25 function extends the set of scheduling policies allowed for
  26 <var>processor_set</var>. The set of scheduling policies allowed for a
  27 processor set is the set of policies allowed to be set for threads
  28 assigned to that processor set. The current set of permitted policies
  29 can be obtained from <strong>processor_set_info</strong>.
  30 <h3>RETURN VALUES</h3>
  31 <p>
  32 Only generic errors apply.
  33 <h3>RELATED INFORMATION</h3>
  34 <p>
  35 Functions:
  36 <a href="processor_set_info.html">processor_set_info</a>,
  37 <a href="P_set_policy_disable.html">processor_set_policy_disable</a>,
  38 <a href="thread_policy.html">thread_policy</a>.