1<h2>vm_region_basic_info</h2>
2<hr>
3<p>
4<strong>Structure</strong> - Defines the attributes of a task's memory region.
5<h3>SYNOPSIS</h3>
6<pre>
7<strong>struct vm_region_basic_info</strong>
8<strong>{</strong>
9       <strong>vm_prot_t</strong>             <var>protection</var><strong>;</strong>
10       <strong>vm_prot_t</strong>         <var>max_protection</var><strong>;</strong>
11       <strong>vm_inherit_t</strong>         <var>inheritance</var><strong>;</strong>
12       <strong>boolean_t</strong>                 <var>shared</var><strong>;</strong>
13       <strong>boolean_t</strong>               <var>reserved</var><strong>;</strong>
14       <strong>vm_offset_t</strong>               <var>offset</var><strong>;</strong>
15       <strong>vm_behavior_t</strong>           <var>behavior</var><strong>;</strong>
16       <strong>unsigned short</strong>  <var>user_wired_count</var><strong>;</strong>
17<strong>};</strong>
18
19<strong>typedef struct vm_region_basic_info* vm_region_basic_info_t;</strong>
20</pre>
21<h3>FIELDS</h3>
22<dl>
23<dt> <var>protection</var>
24<dd>
25The current protection for the region.
26<p>
27<dt> <var>max_protection</var>
28<dd>
29The maximum protection allowed for the region.
30<p>
31<dt> <var>inheritance</var>
32<dd>
33The inheritance attribute for the region.
34<p>
35<dt> <var>shared</var>
36<dd>
37Shared indicator.  If true, the region is shared by another task.  If false, 
38the region is not shared.
39<p>
40<dt> <var>reserved</var>
41<dd>
42If true the region is protected from random allocation.
43<p>
44<dt> <var>offset</var>
45<dd>
46The region's offset into the memory object.  The region begins at this 
47offset.
48<p>
49<dt> <var>behavior</var>
50<dd>
51Expected reference pattern for the memory.  Valid values are:
52<dl>
53<p>
54<dt> <strong>VM_BEHAVIOR_DEFAULT</strong>
55<dd>
56The system's default behavior.
57<p>
58<dt> <strong>VM_BEHAVIOR_RANDOM</strong>
59<dd>
60No particular order expected.
61<p>
62<dt> <strong>VM_BEHAVIOR_SEQUENTIAL</strong>
63<dd>
64Forward sequential order.
65<p>
66<dt> <strong>VM_BEHAVIOR_RSEQNTL</strong>
67<dd>
68Reverse sequential order.
69</dl>
70</dl>
71<h3>DESCRIPTION</h3>
72<p>
73The <strong>vm_region_basic_info</strong> structure defines the attributes
74of a memory region returned by <strong>vm_region</strong>.
75<h3>RELATED INFORMATION</h3>
76<p>
77Functions:
78<a href="vm_region.html"><strong>vm_region</strong></a>,
79<a href="vm_inherit.html"><strong>vm_inherit</strong></a>,
80<a href="vm_protect.html"><strong>vm_protect</strong></a>.
81