xnu-2422.1.72.tar.gz

[apple/xnu.git] / osfmk / man / MO_change_completed.html

<h2>memory_object_change_completed</h2>
<hr>
<p>
<strong>Server Interface</strong> - Notify memory manager that kernel has updated memory object attributes as requested.
<h3>SYNOPSIS</h3>
<pre>
<strong>kern_return_t   memory_object_change_completed</strong>
                <strong>(memory_object_t</strong>                     <var>reply_port</var>,
                 <strong>memory_object_control_t</strong>         <var>memory_control</var>,
                 <strong>memory_object_flavor_t</strong>                  <var>flavor</var><strong>);</strong>


<strong>kern_return_t   seqnos_memory_object_change_completed</strong>
                <strong>(memory_object_t</strong>                     <var>reply_port</var>,
                 <strong>mach_port_seqno_t</strong>                        <var>seqno</var>,
                 <strong>memory_object_control_t</strong>         <var>memory_control</var>,
                 <strong>memory_object_flavor_t</strong>                  <var>flavor</var><strong>);</strong>
</pre>
<h3>PARAMETERS</h3>
<dl>
<p>
<dt> <var>reply_port</var> 
<dd>
[in reply (receive) right]
The port supplied in the corresponding
<strong>memory_object_change_attributes</strong> call.
<p>
<dt> <var>seqno</var> 
<dd>
[in scalar]
The sequence number of this message relative to the port 
named in the <strong>memory_object_change_attributes</strong> call.
<p>
<dt> <var>memory_control</var> 
<dd>
[in memory-cache-control send right]
The memory cache control port 
to be used for a response by the memory manager.  If the memory
object has been supplied to more than one kernel, this parameter
identifies the kernel that is making the call.
<p>
<dt> <var>flavor</var> 
<dd>
[in scalar]
The flavor of attributes changed by the corresponding
<strong>memory_object_change_attributes</strong> call.
</dl>
<h3>DESCRIPTION</h3>
<p>
A <strong>memory_object_change_completed</strong> function is called
as the result of a
kernel message confirming the kernel's action in response to a
<strong>memory_object_change_attributes</strong> call from the memory manager.
<p>
When the kernel completes the requested changes, it calls
<strong>memory_object_change_completed</strong> (asynchronously) using
the port explicitly provided in 
the <strong>memory_object_change_attributes</strong> call.
<h3>RETURN VALUES</h3>
<p>
Only generic errors apply.
<h3>RELATED INFORMATION</h3>
<p>
Functions:
<a href="MO_change_attributes.html"><strong>memory_object_change_attributes</strong></a>,
<a href="memory_object_server.html"><strong>memory_object_server</strong></a>,
<a href="SMO_server.html"><strong>seqnos_memory_object_server</strong></a>.