norma_get_special_port.html [plain text]
<h2>norma_get_special_port</h2>
<hr>
<p>
<strong>Function</strong> - Acquire a send right for a specified node-specific special port.
<h3>SYNOPSIS</h3>
<pre>
<strong>kern_return_t norma_get_special_port</strong>
<strong>(host_priv_t</strong> <var>host_priv</var>,
<strong>int</strong> <var>node</var>,
<strong>int</strong> <var>which_port</var>,
<strong>mach_port_t</strong> <var>special_port</var><strong>);</strong>
</pre>
<h4>Macro forms:</h4>
<pre>
<strong>#include<mach/norma_special_ports.h></strong>
<strong>kern_return_t norma_get_device_port</strong>
<strong>(host_priv_t</strong> <var>host_priv</var>,
<strong>int</strong> <var>node</var>,
<strong>mach_port_t</strong> <var>special_port</var><strong>);</strong>
<strong>kern_return_t norma_get_host_port</strong>
<strong>(host_priv_t</strong> <var>host_priv</var>,
<strong>int</strong> <var>node</var>,
<strong>mach_port_t</strong> <var>special_port</var><strong>);</strong>
<strong>kern_return_t norma_get_host_priv_port</strong>
<strong>(host_priv_t</strong> <var>host_priv</var>,
<strong>int</strong> <var>node</var>,
<strong>mach_port_t</strong> <var>special_port</var><strong>);</strong>
<strong>kern_return_t norma_get_nameserver_port</strong>
<strong>(host_priv_t</strong> <var>host_priv</var>,
<strong>int</strong> <var>node</var>,
<strong>mach_port_t</strong> <var>special_port</var><strong>);</strong>
</pre>
<h3>PARAMETERS</h3>
<dl>
<dt> <var>host_priv</var>
<dd>
[in host-control send right]
The control port for the host for which to
return the special port's send right.
<p>
<dt> <var>node</var>
<dd>
[in scalar]
The index of the node for which the port is desired.
<p>
<dt> <var>which_port</var>
<dd>
[in scalar]
The index of the special port for which the send right is
requested. Valid values are:
<dl>
<p>
<dt> <strong>NORMA_DEVICE_PORT</strong>
<dd>
[device-master send right] The device master port for the
node.
<p>
<dt> <strong>NORMA_HOST_PORT</strong>
<dd>
[host-name send right] The host name port for the node.
<p>
<dt> <strong>NORMA_HOST_PRIV_PORT</strong>
<dd>
[host-control send right] The host control port for the node.
<p>
<dt> <strong>NORMA_NAMESERVER_PORT</strong>
<dd>
[name-server send right] The registered name server port for
the node.
</dl>
<p>
<dt> <var>special_port</var>
<dd>
[out norma-special send right]
The returned value for the port.
</dl>
<h3>DESCRIPTION</h3>
<p>
The <strong>norma_get_special_port</strong> function returns a send
right for a special port belonging to <var>node</var> on <var>host_priv</var>.
<p>
Each node maintains a (small) set of node specific ports. The device master
port, host name, and host control ports are
maintained by the kernel. The kernel also permits a small set
of server specified
node specific ports; the name server port is an example and is given (by
convention) an assigned special port index.
<h3>RETURN VALUES</h3>
<p>
Only generic errors apply.
<h3>RELATED INFORMATION</h3>
<p>
Functions:
<a href="mach_host_self.html"><strong>mach_host_self</strong></a>,
<a href="norma_set_special_port.html"><strong>norma_get_special_port</strong></a>,
<a href="bootstrap_ports.html"><strong>bootstrap_ports</strong></a>.