1<h2>policy_rr_info</h2>
2<hr>
3<p>
4<strong>Structure</strong> - Specifies information associated with the system's Round Robin scheduling policy.
5<h3>SYNOPSIS</h3>
6<pre>
7<strong>struct policy_rr_limit</strong>
8<strong>{</strong>
9       <strong>int</strong>          <var>max_priority</var><strong>;</strong>
10<strong>};</strong>
11
12<strong>struct policy_rr_base</strong>
13<strong>{</strong>
14       <strong>int</strong>         <var>base_priority</var><strong>;</strong>
15       <strong>int</strong>               <var>quantum</var><strong>;</strong>
16<strong>};</strong>
17
18<strong>struct policy_rr_info</strong>
19<strong>{</strong>
20       <strong>int</strong>          <var>max_priority</var><strong>;</strong>
21       <strong>int</strong>         <var>base_priority</var><strong>;</strong>
22       <strong>int</strong>               <var>quantum</var><strong>;</strong>
23       <strong>boolean_t</strong>       <var>depressed</var><strong>;</strong>
24       <strong>int</strong>      <var>depress_priority</var><strong>;</strong>
25<strong>};</strong>
26</pre>
27<h3>FIELDS</h3>
28<dl>
29<dt> <var>max_priority</var>
30<dd>
31Maximum scheduling priority
32<p>
33<dt> <var>base_priority</var>
34<dd>
35Scheduling priority
36<p>
37<dt> <var>quantum</var>
38<dd>
39Scheduling quantum (in milliseconds)
40<p>
41<dt> <var>depressed</var>
42<dd>
43True if scheduling priority is depressed
44<p>
45<dt> <var>depress_priority</var>
46<dd>
47Scheduling priority from which depressed
48</dl>
49<h3>DESCRIPTION</h3>
50<p>
51The <strong>policy_rr_info</strong> structure defines the round-robin
52scheduling policy information.
53Round-robin threads have two priorities associated with them by the system:
54<ul>
55  <p>
56<li>
57A maximum priority value which can be raised only via privileged operation 
58so that users may not unfairly compete with other users in their processor 
59set.  Newly created threads obtain their maximum priority from that of their 
60assigned processor set.
61     <p>
62<li>
63A priority value which can be set by the thread to any value up to a
64maximum priority.  Newly created threads obtain their priority from their task.
65</ul>
66<h3>RELATED INFORMATION</h3>
67<p>
68Functions:
69<a href="thread_info.html"><strong>thread_info</strong></a>,
70<a href="task_info.html"><strong>task_info</strong></a>,
71<a href="processor_set_info.html"><strong>processor_set_info</strong></a>,
72<a href="P_set_policy_control.html"><strong>processor_set_policy_control</strong></a>,
73<a href="P_set_policy_disable.html"><strong>processor_set_policy_disable</strong></a>,
74<a href="P_set_policy_enable.html"><strong>processor_set_policy_enable</strong></a>,
75<a href="task_policy.html"><strong>task_policy</strong></a>,
76<a href="thread_policy.html"><strong>thread_policy</strong></a>,
77<a href="thread_set_policy.html"><strong>thread_set_policy</strong></a>.
78<p>
79Data Structures:
80<a href="policy_fifo_info.html"><strong>policy_fifo_info</strong></a>,
81<a href="policy_timeshare_info.html"><strong>policy_timeshare_info</strong></a>.
82